/* Ensure Inter font is loaded if not using Tailwind's default sans-serif stack */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@100..900&display=swap');

:root {
    /* Custom properties for complex arrow dimensions in example.html */
    --gas-arrow-h1-width: 5.7rem; 
    --gas-arrow-v1-height: 100vh; 
    --gas-arrow-h2-top-offset: 100vh; 
    --gas-arrow-h2-left-offset: -5.7rem; 
    --gas-arrow-h2-width: 25vw;   

    --nas-arrow-v1-down-height: 3rem; 
    --nas-arrow-h-left-width: 45vw; 
    --nas-arrow-v-up-height: 1rem;    
    --nas-arrow-label-offset: -3rem;  
}

html {
    font-size: 93.0%; 
}

body {
    font-family: 'Inter', sans-serif;
    scroll-behavior: smooth; 
    background-color: #f8fafc; /* slate-50 */
    color: #334155; /* slate-700 */
}

/* --- Header Styling --- */
.sticky-header {
    background-color: rgba(255, 255, 255, 0.97); 
    backdrop-filter: blur(10px);
}

/* --- Primary Tab Navigation (Playground, Example, API) --- */
.sticky-header .flex-col.sm\\:flex-row > #primaryTabsNav {
    margin-top: 0.5rem; 
}
@media (min-width: 640px) { 
    .sticky-header .flex-col.sm\\:flex-row > #primaryTabsNav {
        margin-top: 0; 
        margin-left: auto; 
    }
}

#primaryTabsNav .tab-button {
    width: 160px;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    border-radius: 0.75rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    background: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%);
    color: white;
    position: relative;
    overflow: hidden;
    box-shadow: 
        0 4px 12px rgba(20, 184, 166, 0.3),
        0 2px 4px rgba(255, 255, 255, 0.2) inset;
}

#primaryTabsNav .tab-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}


#primaryTabsNav .tab-button:not(.active):hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 
        0 12px 24px rgba(6, 78, 59, 0.4),
        0 4px 8px rgba(255, 255, 255, 0.3) inset;
}

#primaryTabsNav .tab-button:not(.active):hover::before {
    left: 100%;
}


#primaryTabsNav .tab-button:not(.active):hover i {
    transform: scale(1.1);
}

#primaryTabsNav .tab-button.active {
    color: white;
    font-weight: 700;
    background: linear-gradient(135deg, #0d9488 0%, #064e3b 100%);
    box-shadow: 
        0 8px 16px rgba(6, 78, 59, 0.4),
        0 2px 4px rgba(255, 255, 255, 0.3) inset;
    transform: translateY(-2px) scale(1.01);
}


#primaryTabsNav .tab-button i {
    transition: all 0.3s ease;
    margin-right: 0.5rem;
}

/* --- Tab Content (dynamically loaded) --- */
.tab-inner-content.hidden {
    display: none;
}

/* --- Content Sections (Common for all tabs) --- */
.content-section {
    margin-bottom: 2.5rem;
}
.content-section h2 {
    font-size: 2rem; font-weight: 700; color: #0f766e;
    margin-bottom: 1.5rem; border-bottom: 2px solid #99f6e4; 
    padding-bottom: 0.5rem; display: inline-block;
}

/* Scroll margin for heading targets */
#introduction, 
#methodology, 
#core-technologies,
#gas-details, 
#mapping-window-calc,
#best-matching-algo,
#las-details, 
#nas-d,
#nas-l,
#lct-details, 
#nas-f1,
#window-regularizer,
#aggregating-scores {
    scroll-margin-top: 6.5rem; 
}
section#introduction, section#methodology-section-wrapper {
    scroll-margin-top: 6.5rem;
}

.content-section h3 { 
    font-size: 1.5rem; 
    font-weight: 600; 
    color: #0d9488; 
    margin-top: 1.5rem; 
    margin-bottom: 1rem;
}

 .content-section h4 { 
    font-size: 1.2rem; 
    font-weight: 600; 
    color: #115e59; 
    margin-bottom: 0.5rem; 
    margin-top: 1.25rem; 
}

.content-section h5 { 
    font-size: 1.05rem; 
    font-weight: 600; 
    color: #115e59; 
    margin-top: 1rem; 
    margin-bottom: 0.5rem; 
}

.content-section p, .content-section li, .api-section-content p, .api-section-content li, .pane-content p, .pane-content li {
    margin-bottom: 1rem; line-height: 1.75; color: #475569; 
    font-size: 1.05rem;
}
.content-section ul, .api-section-content ul, .pane-content ul {
    list-style-type: disc; list-style-position: outside; padding-left: 1.5rem;
}
.content-section ul li::marker, .api-section-content ul li::marker, .pane-content ul li::marker { color: #0d9488; }

/* --- Enhanced Placeholders --- */
.enhanced-placeholder {
    background: linear-gradient(135deg, #e0f2f1 0%, #b2dfdb 100%); border: none;
    color: #004d40; display: flex; flex-direction: column; align-items: center;
    justify-content: center; text-align: center; border-radius: 0.75rem;
    margin: 1rem auto; padding: 1.5rem;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -2px rgba(0,0,0,0.03);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.enhanced-placeholder:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 20px -5px rgba(0,0,0,0.07), 0 8px 8px -5px rgba(0,0,0,0.04);
}
.enhanced-placeholder i { font-size: 2.5rem; margin-bottom: 0.75rem; color: #00796b; }

/* --- Equations --- */
.equation {
    background-color: #f1f5f9; padding: 1rem 1.5rem; border-radius: 0.5rem;
    margin-top: 0.75rem; margin-bottom: 1.25rem; border: 1px solid #e2e8f0;
    color: #334155; box-shadow: 0 3px 6px rgba(0,0,0,0.04), 0 1px 2px rgba(0,0,0,0.03);
    font-size: 1.05rem; overflow-x: auto; line-height: 1.6;
}
.equation .MathJax_SVG_Display { margin: 0.5em 0 !important; }

/* --- Tables --- */
.table-container {
    overflow-x: auto; margin-bottom: 2rem; border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -1px rgba(0,0,0,0.03);
}
table { width: 100%; border-collapse: collapse; }
th, td {
    border: none; border-bottom: 1px solid #cbd5e1; padding: 0.75rem 1rem;
    text-align: left; font-size: 0.9rem;
}
th {
    background-color: #f1f5f9; color: #0f766e; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.05em;
}
tr:last-child td { border-bottom: none; }
tr:hover { background-color: #f8fafc; }

/* --- Scroll to Top Button --- */
#scrollToTopBtn {
    position: fixed; bottom: 20px; right: 20px; background-color: #0d9488;
    color: white; border: none; border-radius: 50%; width: 50px; height: 50px;
    font-size: 24px; cursor: pointer; display: none; align-items: center;
    justify-content: center; box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    transition: background-color 0.3s ease, opacity 0.3s ease, transform 0.3s ease;
    z-index: 100;
}
#scrollToTopBtn:hover { background-color: #0f766e; transform: scale(1.1); }

/* --- Animations --- */
.fade-in-section {
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.fade-in-section.visible { opacity: 1; transform: translateY(0); }

.article-card {
    background-color: white; border-radius: 0.75rem;
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.05), 0 8px 10px -6px rgb(0 0 0 / 0.05);
    overflow: hidden; 
}

#hero-section {
    background: linear-gradient(45deg, #0d9488, #0f766e); 
    color: white; 
}
#hero-section h1 {
    text-shadow: 1px 1px 3px rgba(0,0,0,0.2); 
}

/* --- VIDEO ALIGNMENT WRAPPER --- */
.video-alignment-wrapper {
    aspect-ratio: 16/9;
}

@media (min-width: 768px) {
    .video-alignment-wrapper {
        aspect-ratio: unset;
        height: 100%;
        min-height: 400px;
    }
}

.video-alignment-wrapper video {
    object-fit: contain;
}

/* --- HERO LINK BOXES (New 3x2 Grid) --- */
.hero-link-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1rem 0.75rem;
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 0.5rem;
    text-decoration: none;
    color: #ccfbf1;
    transition: all 0.3s ease;
    text-align: center;
    min-height: 100px;
    cursor: pointer;
}

.hero-link-box:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.hero-link-box span {
    margin-top: 0.5rem;
    font-weight: 500;
}

/* --- ENHANCED AUTHORS MODAL STYLING --- */
.modal-container {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    max-width: 900px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.3) translateY(100px) rotate(5deg);
    opacity: 0;
    transition: all var(--modal-transition-duration) var(--modal-spring);
    transform-origin: center center;
    position: relative;
}

.modal-overlay.show .modal-container {
    transform: scale(1) translateY(0) rotate(0deg);
    opacity: 1;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid #e5e7eb;
    background: linear-gradient(135deg, #f0fdfa 0%, #ccfbf1 100%);
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0f766e;
    margin: 0;
    display: flex;
    align-items: center;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #6b7280;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background-color: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.modal-content {
    padding: 2rem;
    overflow-y: auto;
    max-height: calc(90vh - 100px);
}

.authors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.author-card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    padding: 1.5rem;
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(30px) scale(0.95);
    animation: authorCardReveal 0.6s var(--modal-ease-out) forwards;
}

.author-card:nth-child(1) { animation-delay: calc(var(--modal-transition-duration) + 0.1s); }
.author-card:nth-child(2) { animation-delay: calc(var(--modal-transition-duration) + 0.2s); }
.author-card:nth-child(3) { animation-delay: calc(var(--modal-transition-duration) + 0.3s); }
.author-card:nth-child(4) { animation-delay: calc(var(--modal-transition-duration) + 0.4s); }

@keyframes authorCardReveal {
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.author-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 30px -8px rgba(0, 0, 0, 0.15);
    border-color: #14b8a6;
}

.author-header {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.author-avatar {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #e6fffa 0%, #b2f5ea 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    font-size: 1.5rem;
}

.author-info {
    flex: 1;
}

.author-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1f2937;
    margin: 0 0 0.25rem 0;
    display: flex;
    align-items: baseline;
}

.author-rank {
    font-size: 0.75rem;
    color: #0d9488;
    font-weight: 600;
    margin-left: 0.25rem;
}

.author-role {
    font-size: 0.875rem;
    color: #6b7280;
    font-weight: 500;
    margin: 0;
}

.author-details {
    margin-top: 1rem;
}

.author-affiliation {
    font-size: 0.875rem;
    color: #4b5563;
    margin: 0 0 1rem 0;
    display: flex;
    align-items: center;
}

.author-links {
    display: flex;
    gap: 0.75rem;
}

.author-link-btn {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, #0d9488 0%, #14b8a6 100%);
    color: white;
    text-decoration: none;
    border-radius: 0.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.author-link-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(13, 148, 136, 0.3);
}

.author-link-btn.external {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
}

.author-link-btn.external:hover {
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.modal-footer {
    padding-top: 1.5rem;
    border-top: 1px solid #e5e7eb;
    text-align: center;
}

.institution-info {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
}

/* Modal Responsive Design */
@media (max-width: 768px) {
    .modal-container {
        width: 95%;
        margin: 1rem;
    }
    
    .modal-header {
        padding: 1rem 1.5rem;
    }
    
    .modal-content {
        padding: 1.5rem;
    }
    
    .modal-title {
        font-size: 1.25rem;
    }
    
    .authors-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .author-card {
        padding: 1rem;
    }
    
    .author-avatar {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
    
    .author-name {
        font-size: 1.1rem;
    }
}

/* --- COMPONENT DISCOVERY SECTION --- */
.component-discovery-section {
    padding: 3rem 2rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
}

.discovery-header {
    text-align: center;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.discovery-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: #0f766e;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #0f766e 0%, #14b8a6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.discovery-subtitle {
    font-size: 1.25rem;
    color: #64748b;
    line-height: 1.6;
    margin: 0;
}

.components-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

/* Final VCS card spans 2 columns on larger screens */
.component-card.final-vcs {
    grid-column: span 2;
}

@media (max-width: 768px) {
    .component-card.final-vcs {
        grid-column: span 1;
    }
    
    .components-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .component-discovery-section {
        padding: 2rem 1rem;
    }
    
    .discovery-title {
        font-size: 2rem;
    }
    
    .discovery-subtitle {
        font-size: 1.1rem;
    }
}

/* --- COMPONENT CARDS --- */
.component-card {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    cursor: pointer;
    overflow: hidden;
    position: relative;
    min-height: 280px;
    display: flex;
    flex-direction: column;
}

.component-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.component-card.foundation:hover {
    border-color: #3b82f6;
    box-shadow: 0 20px 25px -5px rgba(59, 130, 246, 0.15);
}

.component-card.metric:hover {
    border-color: #14b8a6;
    box-shadow: 0 20px 25px -5px rgba(20, 184, 166, 0.15);
}

.component-card.advanced:hover {
    border-color: #8b5cf6;
    box-shadow: 0 20px 25px -5px rgba(139, 92, 246, 0.15);
}

.component-card.final-vcs:hover {
    border-color: #f59e0b;
    box-shadow: 0 20px 25px -5px rgba(245, 158, 11, 0.15);
}

.card-header {
    padding: 1.5rem 1.5rem 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: linear-gradient(135deg, #e6fffa 0%, #b2f5ea 100%);
    color: #0d9488;
    margin-bottom: 1rem;
}

.component-card.foundation .card-icon {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #3b82f6;
}

.component-card.advanced .card-icon {
    background: linear-gradient(135deg, #ede9fe 0%, #ddd6fe 100%);
    color: #8b5cf6;
}

.component-card.final-vcs .card-icon {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #f59e0b;
}

.card-badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.foundation-badge {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    color: #1e40af;
}

.metric-badge {
    background: linear-gradient(135deg, #ccfbf1 0%, #99f6e4 100%);
    color: #0f766e;
}

.advanced-badge {
    background: linear-gradient(135deg, #ede9fe 0%, #ddd6fe 100%);
    color: #6d28d9;
}

.final-badge {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    color: #92400e;
}

.card-content {
    padding: 0 1.5rem;
    flex-grow: 1;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1f2937;
    margin: 0 0 0.75rem 0;
    line-height: 1.2;
}

.card-description {
    font-size: 1rem;
    color: #6b7280;
    line-height: 1.5;
    margin: 0 0 1rem 0;
}

.card-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.tag {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    background-color: #f3f4f6;
    color: #6b7280;
    border-radius: 0.375rem;
    border: 1px solid #e5e7eb;
}

.card-footer {
    padding: 0 1.5rem 1.5rem 1.5rem;
    margin-top: auto;
}

.demo-button {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
}

.component-card.foundation .demo-button:not(.coming-soon) {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
}

.component-card.metric .demo-button:not(.coming-soon) {
    background: linear-gradient(135deg, #0d9488 0%, #064e3b 100%);
    color: white;
}

.component-card.advanced .demo-button:not(.coming-soon) {
    background: linear-gradient(135deg, #8b5cf6 0%, #7c3aed 100%);
    color: white;
}

.component-card.final-vcs .demo-button {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    font-size: 1rem;
    padding: 1rem;
}

.demo-button:not(.coming-soon):hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px -3px rgba(0, 0, 0, 0.2);
}

.demo-button.coming-soon {
    background-color: #f9fafb;
    color: #9ca3af;
    border: 1px solid #e5e7eb;
    cursor: not-allowed;
}

.demo-button .fas {
    margin-right: 0.5rem;
}

/* --- COMPONENT DEMO MODAL --- */

/* =================================================================== */
/* IFRAME LOADING FIX - Prevent animation conflicts */
/* =================================================================== */

/* Force iframe to be immediately visible when loaded */
.component-iframe.loaded {
    opacity: 1 !important;
    visibility: visible !important;
    display: block !important;
    z-index: 5 !important;
}

/* Ensure loading overlay doesn't block iframe */
.iframe-loading.fade-out {
    opacity: 0 !important;
    pointer-events: none !important;
    z-index: 1 !important;
}

/* Fix modal container visibility timing */
.component-modal-container.content-ready {
    opacity: 1 !important;
    pointer-events: auto !important;
}

/* Prevent animation delays from affecting iframe display */
.modal-overlay.show .component-iframe-container {
    animation-delay: 0s !important;
}

/* Force iframe container to be visible immediately */
.component-iframe-container {
    opacity: 1 !important;
    visibility: visible !important;
}

/* Fix z-index conflicts */
.component-modal-content {
    z-index: 3 !important;
}

.component-modal-container {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    width: 95%;
    max-width: 1200px;
    max-height: 95vh;
    overflow: hidden;
    transform: translateY(50px) scale(0.95);
    transition: all 0.3s ease;
}

.modal-overlay.show .component-modal-container {
    transform: translateY(0) scale(1);
}

.component-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid #e5e7eb;
    background: linear-gradient(135deg, #f0fdfa 0%, #ccfbf1 100%);
}

.modal-title-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.modal-component-icon {
    width: 50px;
    height: 50px;
    border-radius: 0.75rem;
    background: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.modal-title-info h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0f766e;
    margin: 0;
}

.modal-subtitle {
    font-size: 0.875rem;
    color: #64748b;
    margin: 0;
}

.modal-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-nav-btn {
    background: none;
    border: 1px solid #d1d5db;
    padding: 0.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    color: #6b7280;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.modal-nav-btn:hover {
    background-color: #f3f4f6;
    border-color: #9ca3af;
    color: #374151;
}

.modal-nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.component-modal-content {
    height: calc(95vh - 100px);
    overflow: hidden;
}

.component-iframe-container {
    width: 100%;
    height: 100%;
    position: relative;
    background-color: #f8fafc;
}

.component-iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

.iframe-loading {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #f8fafc;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.loading-spinner {
    text-align: center;
}

.iframe-coming-soon {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #f8fafc;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.coming-soon-content {
    text-align: center;
    max-width: 400px;
    padding: 2rem;
}

.iframe-coming-soon.hidden {
    display: none;
}

/* Mobile adjustments for component modal */
@media (max-width: 768px) {
    .component-modal-container {
        width: 98%;
        max-height: 98vh;
    }
    
    .component-modal-header {
        padding: 1rem 1.5rem;
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .modal-title-section {
        justify-content: center;
    }
    
    .modal-controls {
        justify-content: center;
    }
    
    .component-modal-content {
        height: calc(98vh - 140px);
    }
    
    .modal-component-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .modal-title-info h2 {
        font-size: 1.25rem;
    }
}

/* --- INFO CARDS --- */
.info-card {
    background: linear-gradient(135deg, #f0fdfa 0%, #ccfbf1 100%);
    border: 1px solid #99f6e4;
    border-radius: 0.75rem;
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.info-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px -3px rgba(0, 0, 0, 0.1);
}

.info-card h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #0f766e;
    margin: 0.5rem 0;
}

.info-card p {
    font-size: 0.9rem;
    color: #64748b;
    margin: 0;
    line-height: 1.5;
}

/* --- GETTING STARTED SECTION --- */
.getting-started-section {
    background-color: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-top: 2rem;
}

.getting-started-section h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #0f766e;
    margin-bottom: 1rem;
}

.feature-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.feature-list li {
    display: flex;
    align-items: center;
    padding: 0.5rem 0;
    font-size: 1rem;
    color: #475569;
}

.feature-list li i {
    margin-right: 0.75rem;
    width: 1.25rem;
    flex-shrink: 0;
}

/* --- CODE SECTION --- */
.code-section {
    margin-top: 2rem;
    border-top: 1px solid #e2e8f0;
    padding-top: 1.5rem;
}

.code-toggle {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.25rem;
    background-color: #1f2937;
    color: #f9fafb;
    border: none;
    border-radius: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.code-toggle:hover {
    background-color: #374151;
}

.code-toggle i {
    margin-right: 0.5rem;
}

.code-block {
    margin-top: 1rem;
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.code-block.hidden {
    display: none;
}

.code-block pre {
    background-color: #1f2937;
    color: #f9fafb;
    padding: 1.5rem;
    margin: 0;
    overflow-x: auto;
    font-family: 'SFMono-Regular', 'Monaco', 'Inconsolata', 'Roboto Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
}

.code-block code {
    color: inherit;
}

/* --- EXAMPLE PAGE STEP CARDS --- */
.example-step-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 1rem;
    padding: 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.example-step-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.example-step-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.05));
    z-index: -1;
}

/* Foundation Cards (Blue theme) */
.foundation-card {
    border-color: rgba(59, 130, 246, 0.3);
}

.foundation-card:hover {
    border-color: rgba(59, 130, 246, 0.5);
    box-shadow: 0 20px 25px -5px rgba(59, 130, 246, 0.15);
}

.foundation-card::before {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1), rgba(59, 130, 246, 0.05));
}

/* Core Metric Cards (Teal theme) */
.core-metric-card {
    border-color: rgba(20, 184, 166, 0.3);
}

.core-metric-card:hover {
    border-color: rgba(20, 184, 166, 0.5);
    box-shadow: 0 20px 25px -5px rgba(20, 184, 166, 0.15);
}

.core-metric-card::before {
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.1), rgba(20, 184, 166, 0.05));
}

/* Intermediate Cards (Green theme) */
.intermediate-card {
    border-color: rgba(34, 197, 94, 0.3);
}

.intermediate-card:hover {
    border-color: rgba(34, 197, 94, 0.5);
    box-shadow: 0 20px 25px -5px rgba(34, 197, 94, 0.15);
}

.intermediate-card::before {
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.1), rgba(34, 197, 94, 0.05));
}

/* Advanced Cards (Purple theme) */
.advanced-card {
    border-color: rgba(139, 92, 246, 0.3);
}

.advanced-card:hover {
    border-color: rgba(139, 92, 246, 0.5);
    box-shadow: 0 20px 25px -5px rgba(139, 92, 246, 0.15);
}

.advanced-card::before {
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.1), rgba(139, 92, 246, 0.05));
}

/* Final Cards (Orange theme) */
.final-card {
    border-color: rgba(245, 158, 11, 0.3);
}

.final-card:hover {
    border-color: rgba(245, 158, 11, 0.5);
    box-shadow: 0 20px 25px -5px rgba(245, 158, 11, 0.15);
}

.final-card::before {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.1), rgba(245, 158, 11, 0.05));
}

/* Mapping Window Container */
.example-mapping-container {
    background: rgba(240, 253, 250, 0.3);
    border: 2px dashed rgba(153, 246, 228, 0.5);
    border-radius: 1.5rem;
    padding: 2rem;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.example-mapping-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(240, 253, 250, 0.2), rgba(240, 253, 250, 0.1));
    z-index: -1;
}

/* Responsive adjustments for example cards */
@media (max-width: 768px) {
    .example-step-card {
        padding: 1rem;
    }
    
    .example-mapping-container {
        padding: 1.5rem;
    }
}

/* --- RESPONSIVE ADJUSTMENTS --- */
@media (max-width: 768px) {
    .iframe-container {
        height: 650px; /* Increased from 500px for mobile */
    }
    
    .info-card {
        padding: 1rem;
    }
}

/* --- ORIGINAL STYLES (Preserved for Example and API tabs) --- */

/* --- HERO TABLE OF CONTENTS LINKS (Simplified & Flat) --- */
#heroPlaygroundToc .grid > div { 
    display: flex;
    flex-direction: column;
    align-items: flex-start; 
}

.hero-toc-link {
    display: flex; 
    align-items: center; 
    width: 100%; 
    text-align: left; 
    padding: 0.3rem 0.2rem; 
    font-size: 0.9rem; 
    color: #ccfbf1; 
    text-decoration: none;
    border-radius: 0.375rem; 
    transition: background-color 0.2s ease-in-out, color 0.2s ease-in-out, transform 0.1s ease;
}
.hero-toc-link:hover {
    background-color: rgba(255, 255, 255, 0.1); 
    color: #ffffff; 
    transform: translateX(3px); 
}
.hero-toc-link .toc-icon { 
    color: #5eead4; 
    margin-right: 0.5rem; 
    width: 1.2em; 
    text-align: center;
    flex-shrink: 0; 
    transition: color 0.2s ease-in-out;
}
.hero-toc-link:hover .toc-icon {
    color: #99f6e4; 
}

/* --- HERO SECONDARY LINKS (New 2x3 grid) --- */
.hero-secondary-link {
    display: flex;
    align-items: center;
    justify-content: center; 
    text-align: center;
    padding: 0.5rem 0.25rem; 
    font-size: 0.8rem; 
    color: #ccfbf1; 
    background-color: rgba(255, 255, 255, 0.05); 
    border: 1px solid rgba(255, 255, 255, 0.2); 
    border-radius: 0.375rem; 
    text-decoration: none;
    transition: all 0.2s ease-in-out;
    width: 100%; 
}
.hero-secondary-link:hover {
    background-color: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-1px);
}
.hero-secondary-link .toc-icon { 
    color: #5eead4;
    margin-right: 0.3rem; 
}
.hero-secondary-link:hover .toc-icon {
    color: #99f6e4;
}

.hero-secondary-link-wrapper {
    position: relative; 
    display: flex; 
    width: 100%;
}
.hero-secondary-link-wrapper .hero-secondary-link { 
    justify-content: space-between; 
}
.hero-secondary-link-wrapper .fa-chevron-down {
    margin-left: auto; 
}

.hero-secondary-link-wrapper .dropdown-panel-hover-persist {
    min-width: 10rem; 
}

.dropdown-panel-hover-persist::before {
    content: '';
    position: absolute;
    top: -10px; 
    left: 0;
    right: 0;
    height: 10px; 
}

.hero-secondary-link-wrapper .dropdown-panel-hover-persist {
    transition: opacity 0.1s ease-in-out 0.05s, visibility 0.1s ease-in-out 0.05s; 
}

/* --- HERO CTA BUTTON STYLES (Original, kept for reference) --- */
.hero-cta-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.65rem 1.25rem; 
    font-weight: 500;
    font-size: 0.875rem; 
    border-radius: 0.375rem; 
    text-decoration: none;
    transition: all 0.2s ease-in-out;
    border: 2px solid transparent;
    cursor: pointer;
    flex-grow: 1; 
}

.hero-cta-button.primary-cta {
    background-color: #ccfbf1; 
    color: #134e4a; 
    border-color: #5eead4; 
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}
.hero-cta-button.primary-cta:hover {
    background-color: #99f6e4; 
    color: #115e59; 
    border-color: #2dd4bf; 
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.07);
}

.hero-cta-button.secondary-cta {
    background-color: transparent;
    color: #f0fdfa; 
    border-color: #5eead4; 
}
.hero-cta-button.secondary-cta:hover {
    background-color: rgba(255, 255, 255, 0.1); 
    border-color: #99f6e4; 
    color: #ffffff;
    transform: translateY(-2px);
}

.api-nav-link.active-api-link {
    font-weight: 600; color: #0f766e; 
    border-left: 3px solid #0d9488; 
    padding-left: 0.75rem;
    background-color: #f0fdfa; 
}
 .api-nav-link {
    display: block; padding: 0.5rem 0.25rem; border-radius: 0.25rem;
    transition: background-color 0.2s ease, color 0.2s ease, border-left 0.2s ease, padding-left 0.2s ease;
}
.api-nav-link:hover {
    background-color: #e6f7f6; color: #0c6b61;
}

.flowchart-block {
    background-color: #f8fafc; 
    border: 1px solid #cbd5e1; 
    border-radius: 0.65rem; 
    padding: 1rem; 
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
}
.flowchart-block-text-io { min-height: 160px; }
.flowchart-block-api { max-width: 640px; padding: 0.75rem; margin-left: auto; margin-right: auto; }
.flowchart-block-process { min-height: 180px;  }
.flowchart-block-nas-vertical { margin-left: auto; margin-right: auto; }
.mapping-window-group-container {
    background-color: #f0fdfa; 
    border: 1px dashed #99f6e4; 
    border-radius: 0.75rem; 
    padding: 1rem; 
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
}

.flowchart-text-sm { font-size: 0.875rem; color: #475569; line-height: 1.5; margin-top: 0.5rem; }
.text-preview-box {
    width: 100%;
    background-color: #ffffff;
    border: 1px solid #d1d5db;
    border-radius: 0.375rem;
    padding: 0.5rem;
    margin-top: 0.5rem;
    font-size: 0.8rem;
    color: #374151;
    text-align: left;
    line-height: 1.6;
    max-height: 120px;
    overflow-y: auto;
    flex-grow: 1;
}

.video-figure-container {
    background-color: #e2e8f0;
    border: 1px solid #cbd5e1;
    border-radius: 0.5rem;
    padding: 0.4rem;
    margin-top: 0.25rem;
    margin-bottom: 0.25rem;
    width: 100%;
    box-shadow: 0 1px 3px rgba(0,0,0,0.03), 0 1px 2px rgba(0,0,0,0.03);
    display: flex; 
    flex-direction: column; 
    align-items: center; 
}

.video-caption { font-size: 0.8rem; color: #64748b; margin-top: 0.5rem; line-height: 1.4; text-align: center; }

.video-placeholder {
    width: 100%; 
    background-color: #1f2937;
    border-radius: 0.375rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #d1d5db;
    font-style: italic;
    font-size: 0.875rem;
    overflow: hidden;
    position: relative;
}

.flowchart-block-process .video-figure-container .video-placeholder,
.flowchart-block-nas-vertical .video-figure-container .video-placeholder { height: 250px; max-width: 450px;  }

.flowchart-block.md\:col-span-2 .video-figure-container .video-placeholder {  height: 300px;  max-width: 100%;  }
.video-placeholder video { width: 100%; height: 100%; object-fit: contain;  border-radius: 0.375rem; display: block; background-color: #000; }
.video-placeholder:has(video[autoplay]) { font-size: 0; background-color: #111827; }

.api-signature-block {
    background-color: #1f2937;
    color: #d1d5db;
    padding: 1rem;
    border-radius: 0.375rem;
    font-size: 0.75rem;
    line-height: 1.6;
    margin-top: 0.75rem;
    overflow-x: auto;
    text-align: left;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
}
.api-signature-block code { color: #9ca3af; }
.api-signature-block .param-name { color: #60a5fa; }
.api-signature-block .param-type { color: #f472b6; }
.api-signature-block .default-val { color: #a3e635; }
.api-signature-block .comment { color: #6b7280; }

.connector-wrapper { margin: 1rem 0; display: flex; flex-direction: column; align-items: center; }
.connector-line { background-color: #99f6e4; }
.connector-arrow i { color: #0d9488; font-size: 1.25rem; }
.connector-arrow-styled {
    padding: 0.375rem;
    background-color: #f0fdfa; 
    border-radius: 9999px; 
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    display: inline-block;
}
.nas-vertical-connector .connector-line { margin-left: auto; margin-right: auto; }
.nas-vertical-connector.my-2 { margin-top: 0.5rem; margin-bottom: 0.5rem; }

/* --- MODERN WEB DESIGN ENHANCEMENTS FROM PLAYGROUND --- */

/* Modern Color Palette */
:root {
    /* Playground-specific modern color palette */
    --primary-gradient: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%);
    --secondary-gradient: linear-gradient(135deg, #e6fffa 0%, #b2f5ea 50%, #99f6e4 100%);
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    --shadow-soft: 0 8px 32px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 25px 50px rgba(20, 184, 166, 0.2);
    --blur-amount: 20px;
    
    /* Animation Timing */
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-spring: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    
    /* Enhanced Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Enhanced Typography */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;
    --font-size-4xl: 2.5rem;
}

/* --- SMOOTH SCROLL ANIMATIONS --- */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* --- SKELETON LOADING STATES --- */
@keyframes shimmer {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200px 100%;
    animation: shimmer 1.5s infinite linear;
    border-radius: 4px;
}

.skeleton-text {
    height: 1rem;
    margin-bottom: 0.5rem;
    border-radius: 4px;
}

.skeleton-text.short {
    width: 60%;
}

.skeleton-text.medium {
    width: 80%;
}

.skeleton-text.long {
    width: 95%;
}

.skeleton-title {
    height: 2rem;
    margin-bottom: 1rem;
    border-radius: 6px;
    width: 70%;
}

.skeleton-card {
    background: linear-gradient(90deg, #f8fafc 25%, #f1f5f9 50%, #f8fafc 75%);
    background-size: 200px 100%;
    animation: shimmer 1.5s infinite linear;
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 1rem;
    min-height: 200px;
    display: flex;
    flex-direction: column;
}

.skeleton-video {
    aspect-ratio: 16/9;
    background: linear-gradient(90deg, #e2e8f0 25%, #cbd5e1 50%, #e2e8f0 75%);
    background-size: 200px 100%;
    animation: shimmer 1.5s infinite linear;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
}

.skeleton-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(90deg, #e6fffa 25%, #ccfbf1 50%, #e6fffa 75%);
    background-size: 200px 100%;
    animation: shimmer 1.5s infinite linear;
    margin-bottom: 1rem;
    flex-shrink: 0;
}

/* Hero section specific skeleton adjustments */
.skeleton-hero-title {
    height: 3rem;
    background: linear-gradient(90deg, rgba(255,255,255,0.3) 25%, rgba(255,255,255,0.5) 50%, rgba(255,255,255,0.3) 75%);
    background-size: 200px 100%;
    animation: shimmer 1.5s infinite linear;
    border-radius: 8px;
    margin-bottom: 1rem;
    width: 90%;
}

.skeleton-hero-text {
    height: 1.5rem;
    background: linear-gradient(90deg, rgba(255,255,255,0.2) 25%, rgba(255,255,255,0.4) 50%, rgba(255,255,255,0.2) 75%);
    background-size: 200px 100%;
    animation: shimmer 1.5s infinite linear;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    width: 85%;
}

.skeleton-hero-link {
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 0.75rem;
    padding: 1rem;
    min-height: 100px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

/* Component card skeleton refinements */
.skeleton-card.component-card {
    border-radius: 1rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.skeleton-card .card-header {
    padding: 1.5rem 1.5rem 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.skeleton-card .card-content {
    padding: 0 1.5rem;
    flex-grow: 1;
}

.skeleton-card .card-footer {
    padding: 0 1.5rem 1.5rem 1.5rem;
    margin-top: auto;
}

.skeleton-button {
    height: 2.5rem;
    background: linear-gradient(90deg, #f0fdfa 25%, #ccfbf1 50%, #f0fdfa 75%);
    background-size: 200px 100%;
    animation: shimmer 1.5s infinite linear;
    border-radius: 0.5rem;
    margin-top: auto;
}

/* Loading container styles */
.loading-container {
    opacity: 1;
    transition: opacity 0.3s ease;
}

.loading-container.fade-out {
    opacity: 0;
}

.content-loaded {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.content-loaded.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Staggered loading animation */
.stagger-item {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.stagger-item.loaded {
    opacity: 1;
    transform: translateY(0);
}

.stagger-item:nth-child(1) { transition-delay: 0.1s; }
.stagger-item:nth-child(2) { transition-delay: 0.2s; }
.stagger-item:nth-child(3) { transition-delay: 0.3s; }
.stagger-item:nth-child(4) { transition-delay: 0.4s; }
.stagger-item:nth-child(5) { transition-delay: 0.5s; }
.stagger-item:nth-child(6) { transition-delay: 0.6s; }
.stagger-item:nth-child(7) { transition-delay: 0.7s; }
.stagger-item:nth-child(8) { transition-delay: 0.8s; }

/* Error state styling */
.error-state {
    background-color: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 0.5rem;
    padding: 1rem;
    color: #dc2626;
    text-align: center;
}

.retry-button {
    background-color: #dc2626;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    cursor: pointer;
    margin-top: 0.5rem;
    transition: background-color 0.2s ease;
}

.retry-button:hover {
    background-color: #b91c1c;
}

/* Graceful degradation indicators */
.loading-indicator {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.95);
    padding: 2rem;
    border-radius: 0.75rem;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
    text-align: center;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #e5e7eb;
    border-top: 4px solid #14b8a6;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Progressive enhancement classes */
.js-only {
    display: none;
}

.js .js-only {
    display: block;
}

.no-js .fallback-content {
    display: block;
}

/* Reduced motion for slow networks or user preference */
.reduce-motion *,
.reduce-motion *::before,
.reduce-motion *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .skeleton {
        animation: none;
        background: #f0f0f0;
    }
}

/* Fallback styles for no-js environments */
.no-js .skeleton-card {
    animation: none;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
}

.no-js .stagger-item {
    opacity: 1;
    transform: none;
}

.no-js .content-loaded {
    opacity: 1;
    transform: none;
}

/* Network-aware optimizations */
.slow-network .component-card {
    transition-duration: 0.2s;
}

.slow-network .skeleton {
    animation-duration: 2s;
}

.fast-network .skeleton {
    animation-duration: 1s;
}

/* --- HOVER PRELOADING INDICATORS --- */
.component-card.preloading {
    position: relative;
    overflow: hidden;
}

.component-card.preloading::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, transparent, #14b8a6, transparent);
    animation: preloadProgress 2s ease-in-out infinite;
    z-index: 10;
}

@keyframes preloadProgress {
    0% { left: -100%; }
    50% { left: 0%; }
    100% { left: 100%; }
}

.component-card.preloaded {
    border-color: rgba(20, 184, 166, 0.3);
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.02) 0%, transparent 100%);
}

.component-card.preloaded .demo-button::before {
    content: '⚡ ';
    color: #10b981;
}

/* --- MODAL MEMORY INDICATORS --- */
.component-card.visited {
    position: relative;
}

.component-card.visited::after {
    content: '✓';
    position: absolute;
    top: 8px;
    right: 8px;
    width: 20px;
    height: 20px;
    background: #10b981;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
    opacity: 0.8;
    z-index: 5;
}

/* --- NETWORK-AWARE OPTIMIZATIONS --- */
.slow-network .component-card {
    transition-duration: 0.2s;
}

.slow-network .modal-overlay {
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.fast-network .modal-overlay.show {
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

/* --- MODERN SCROLL INDICATOR --- */
.scroll-indicator {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, #14b8a6, #0d9488);
    transform-origin: left;
    transform: scaleX(0);
    z-index: 9999;
    transition: transform 0.3s ease;
}

/* --- ENHANCED COMPONENT DISCOVERY SECTION --- */
.component-discovery-section {
    padding: 3rem 2rem;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 50%, #e2e8f0 100%);
    background-size: 400% 400%;
    animation: backgroundShift 20s ease infinite;
    position: relative;
    overflow: hidden;
}

.component-discovery-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 20%, rgba(20, 184, 166, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 90% 80%, rgba(15, 118, 110, 0.1) 0%, transparent 50%);
    animation: sectionGradients 25s ease-in-out infinite;
    z-index: 1;
}

.component-discovery-section > * {
    position: relative;
    z-index: 2;
}

@keyframes backgroundShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes sectionGradients {
    0%, 100% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(20px, -20px) scale(1.05); }
    66% { transform: translate(-20px, 20px) scale(0.95); }
}

.discovery-header {
    text-align: center;
    margin-bottom: 3rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.discovery-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: #0f766e;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, #0f766e 0%, #14b8a6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.discovery-subtitle {
    font-size: 1.25rem;
    color: #64748b;
    line-height: 1.6;
    margin: 0;
}

.components-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .components-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .component-discovery-section {
        padding: 2rem 1rem;
    }
    
    .discovery-title {
        font-size: 2rem;
    }
    
    .discovery-subtitle {
        font-size: 1.1rem;
    }
}

/* --- ENHANCED COMPONENT CARDS (Unified Teal Theme) --- */
.component-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-radius: 1.5rem;
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.1),
        0 2px 8px rgba(255, 255, 255, 0.8) inset;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    overflow: hidden;
    position: relative;
    min-height: 280px;
    display: flex;
    flex-direction: column;
}

.component-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(20, 184, 166, 0.05) 0%, rgba(15, 118, 110, 0.05) 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.component-card:hover::before {
    opacity: 1;
}

.component-card:hover {
    transform: translateY(-12px) scale(1.02);
    border-color: rgba(20, 184, 166, 0.3);
    box-shadow: 
        0 25px 50px rgba(20, 184, 166, 0.2),
        0 4px 16px rgba(255, 255, 255, 0.9) inset,
        0 0 0 1px rgba(20, 184, 166, 0.2);
}

.card-header {
    padding: 1.5rem 1.5rem 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: linear-gradient(135deg, #e6fffa 0%, #b2f5ea 50%, #99f6e4 100%);
    color: #0d9488;
    margin-bottom: 1rem;
    position: relative;
    box-shadow: 
        0 4px 8px rgba(20, 184, 166, 0.2),
        0 2px 4px rgba(255, 255, 255, 0.8) inset;
    transition: all 0.3s ease;
}

.card-icon::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(135deg, #14b8a6, #0d9488);
    border-radius: 50%;
    z-index: -1;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.component-card:hover .card-icon {
    transform: translateY(-2px) scale(1.1);
    box-shadow: 
        0 8px 16px rgba(20, 184, 166, 0.3),
        0 4px 8px rgba(255, 255, 255, 0.9) inset;
}

.component-card:hover .card-icon::before {
    opacity: 1;
}

.component-card:hover .card-icon i {
    transform: scale(1.1);
    color: #0f766e;
}

.card-icon i {
    transition: all 0.3s ease;
}

.card-badge {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: linear-gradient(135deg, #ccfbf1 0%, #99f6e4 100%);
    color: #0f766e;
}

.card-content {
    padding: 0 1.5rem;
    flex-grow: 1;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1f2937;
    margin: 0 0 0.75rem 0;
    line-height: 1.2;
}

.card-description {
    font-size: 1rem;
    color: #6b7280;
    line-height: 1.5;
    margin: 0 0 1rem 0;
}

.card-tags {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 1rem;
}

.tag {
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.25rem 0.5rem;
    background-color: #f0fdfa;
    color: #0d9488;
    border-radius: 0.375rem;
    border: 1px solid #99f6e4;
}

.card-footer {
    padding: 0 1.5rem 1.5rem 1.5rem;
    margin-top: auto;
}

.demo-button {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 0.875rem;
    font-weight: 600;
    border: none;
    border-radius: 0.75rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    background: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%);
    color: white;
    position: relative;
    overflow: hidden;
    box-shadow: 
        0 4px 12px rgba(20, 184, 166, 0.3),
        0 2px 4px rgba(255, 255, 255, 0.2) inset;
}

.demo-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.demo-button:not(.coming-soon):hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 
        0 12px 24px rgba(6, 78, 59, 0.4),
        0 4px 8px rgba(255, 255, 255, 0.3) inset;
}

.demo-button:not(.coming-soon):hover::before {
    left: 100%;
}

.demo-button:not(.coming-soon):hover i {
    transform: scale(1.1);
}

.demo-button i {
    transition: all 0.3s ease;
}

.demo-button.coming-soon {
    background-color: #f9fafb;
    color: #9ca3af;
    border: 1px solid #e5e7eb;
    cursor: not-allowed;
}

.demo-button .fas {
    margin-right: 0.5rem;
}

/* --- ENHANCED HERO SECTION STYLING --- */
#hero-section {
    background: linear-gradient(135deg, #0d9488 0%, #0f766e 25%, #064e3b 50%, #0d9488 75%, #0f766e 100%);
    background-size: 400% 400%;
    animation: gradientShift 15s ease infinite;
    color: white;
    position: relative;
    overflow: hidden;
}

#hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 30%, rgba(6, 78, 59, 0.4) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(15, 118, 110, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 80%, rgba(4, 47, 46, 0.3) 0%, transparent 50%);
    animation: floatingGradients 20s ease-in-out infinite;
    z-index: 1;
}

#hero-section > * {
    position: relative;
    z-index: 2;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

@keyframes floatingGradients {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    25% { transform: translate(10px, -10px) rotate(1deg); }
    50% { transform: translate(-5px, 10px) rotate(-1deg); }
    75% { transform: translate(-10px, -5px) rotate(0.5deg); }
}

#hero-section h1 {
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
    background: linear-gradient(45deg, #ffffff, #ccfbf1, #ffffff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: textShimmer 3s ease-in-out infinite;
}

@keyframes textShimmer {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* --- ENHANCED HERO LINK BOXES --- */
.hero-link-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1rem 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 1rem;
    text-decoration: none;
    color: #ccfbf1;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    text-align: center;
    min-height: 100px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.hero-link-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.6s ease;
}

.hero-link-box:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-4px) scale(1.02);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.2),
        0 2px 8px rgba(255, 255, 255, 0.1) inset;
}

.hero-link-box:hover::before {
    left: 100%;
}

.hero-link-box:hover i {
    transform: scale(1.1) rotate(5deg);
    color: #ffffff;
}

.hero-link-box i {
    transition: all 0.3s ease;
}

.hero-link-box span {
    margin-top: 0.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.hero-link-box:hover span {
    color: #ffffff;
    transform: translateY(-2px);
}

/* --- PROGRESSIVE CONTENT MORPHING SYSTEM --- */
:root {
    --modal-transition-duration: 0.8s;
    --content-morph-duration: 0.6s;
    --frame-grow-duration: 0.4s;
    --modal-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --modal-ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --content-ease: cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: transparent;
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all var(--modal-transition-duration) var(--modal-ease-out);
    pointer-events: none;
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
    background: radial-gradient(circle at 50% 50%, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0.7) 100%);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    pointer-events: all;
}

/* --- PROGRESSIVE CONTENT MORPHING STATES --- */
.component-card {
    transition: all 0.3s var(--modal-ease-out);
    transform-origin: center center;
    position: relative;
    z-index: 1;
}

.component-card.content-morphing {
    opacity: 0.7;
    transform: scale(0.98);
    pointer-events: none;
}

/* Flying Content Elements */
.morphing-icon {
    position: fixed !important;
    z-index: 1002 !important;
    pointer-events: none;
    transition: all var(--content-morph-duration) var(--content-ease);
    will-change: transform, top, left, width, height;
}

.morphing-title {
    position: fixed !important;
    z-index: 1002 !important;
    pointer-events: none;
    transition: all var(--content-morph-duration) var(--content-ease);
    will-change: transform, top, left, font-size, color;
    white-space: nowrap;
    margin: 0;
}

.morphing-description {
    position: fixed !important;
    z-index: 1002 !important;
    pointer-events: none;
    transition: all var(--content-morph-duration) var(--content-ease);
    will-change: transform, top, left, font-size, color, opacity;
    margin: 0;
}

/* Modal Frame Growth */
.modal-frame {
    position: fixed;
    z-index: 1001;
    background: white;
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    opacity: 0;
    transform: scale(0.3);
    transition: all var(--frame-grow-duration) var(--modal-spring);
    pointer-events: none;
}

.modal-frame.growing {
    opacity: 1;
    transform: scale(1);
    pointer-events: all;
}

/* Content Settling Animations */
.content-settled .morphing-icon {
    position: relative !important;
    z-index: auto !important;
    transition: all 0.3s ease;
}

.content-settled .morphing-title {
    position: relative !important;
    z-index: auto !important;
    transition: all 0.3s ease;
}

.content-settled .morphing-description {
    position: relative !important;
    z-index: auto !important;
    transition: all 0.3s ease;
}

/* Enhanced Modal Container for Content Morphing */
.component-modal-container {
    background: transparent;
    border-radius: 1rem;
    width: 95%;
    max-width: 1200px;
    max-height: 95vh;
    overflow: hidden;
    opacity: 0;
    transform: scale(1);
    transition: opacity 0.3s ease;
    transform-origin: center center;
    position: relative;
    pointer-events: none;
}

.component-modal-container.content-ready {
    opacity: 1;
    pointer-events: all;
}

/* Visual Bridge Effects */
.content-bridge {
    position: fixed;
    pointer-events: none;
    z-index: 1001;
}

.bridge-particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: linear-gradient(45deg, #14b8a6, #0d9488);
    border-radius: 50%;
    opacity: 0;
    animation: particleFlow var(--content-morph-duration) ease-out forwards;
}

@keyframes particleFlow {
    0% {
        opacity: 1;
        transform: scale(0.5);
    }
    50% {
        opacity: 0.8;
        transform: scale(1);
    }
    100% {
        opacity: 0;
        transform: scale(0.5);
    }
}

.connection-line {
    position: fixed;
    height: 2px;
    background: linear-gradient(90deg, transparent, #14b8a6, transparent);
    opacity: 0;
    animation: lineGrow var(--content-morph-duration) ease-out forwards;
    z-index: 1001;
    pointer-events: none;
}

@keyframes lineGrow {
    0% {
        opacity: 0;
        transform: scaleX(0);
    }
    30% {
        opacity: 0.6;
        transform: scaleX(1);
    }
    100% {
        opacity: 0;
        transform: scaleX(1);
    }
}

/* Content Morph Glow Effect */
.morphing-glow {
    position: fixed;
    pointer-events: none;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(20, 184, 166, 0.3) 0%, transparent 70%);
    z-index: 1000;
    animation: glowPulse var(--content-morph-duration) ease-out forwards;
}

@keyframes glowPulse {
    0% {
        opacity: 0;
        transform: scale(0.5);
    }
    50% {
        opacity: 1;
        transform: scale(1.5);
    }
    100% {
        opacity: 0;
        transform: scale(2);
    }
}

/* Enhanced Modal Header with Morphing Elements */
.component-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid #e5e7eb;
    background: linear-gradient(135deg, #f0fdfa 0%, #ccfbf1 100%);
    position: relative;
    overflow: hidden;
}

.component-modal-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: headerShimmer 2s ease-in-out;
    animation-delay: var(--modal-transition-duration);
}

@keyframes headerShimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

.modal-title-section {
    display: flex;
    align-items: center;
    gap: 1rem;
    opacity: 0;
    transform: translateX(-20px);
    animation: slideInLeft 0.6s var(--modal-ease-out) forwards;
    animation-delay: calc(var(--modal-transition-duration) + 0.1s);
}

.modal-component-icon {
    width: 50px;
    height: 50px;
    border-radius: 0.75rem;
    background: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transform: scale(0) rotate(180deg);
    animation: iconPop 0.8s var(--modal-spring) forwards;
    animation-delay: calc(var(--modal-transition-duration) + 0.2s);
}

@keyframes slideInLeft {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes iconPop {
    to {
        transform: scale(1) rotate(0deg);
    }
}

.modal-title-info h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0f766e;
    margin: 0;
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: calc(var(--modal-transition-duration) + 0.3s);
}

.modal-subtitle {
    font-size: 0.875rem;
    color: #64748b;
    margin: 0;
    opacity: 0;
    animation: fadeInUp 0.6s ease forwards;
    animation-delay: calc(var(--modal-transition-duration) + 0.4s);
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    opacity: 0;
    transform: translateX(20px);
    animation: slideInRight 0.6s var(--modal-ease-out) forwards;
    animation-delay: calc(var(--modal-transition-duration) + 0.5s);
}

@keyframes slideInRight {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Enhanced Component Modal Content */
.component-modal-content {
    height: calc(95vh - 100px);
    overflow: hidden;
    opacity: 0;
    transform: translateY(30px);
    animation: contentReveal 0.8s var(--modal-ease-out) forwards;
    animation-delay: calc(var(--modal-transition-duration) + 0.3s);
}

@keyframes contentReveal {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Dynamic Background Effects */
.modal-overlay.component-modal {
    background: radial-gradient(circle at var(--cursor-x, 50%) var(--cursor-y, 50%), 
                               rgba(20, 184, 166, 0.1) 0%, 
                               rgba(0, 0, 0, 0.4) 40%, 
                               rgba(0, 0, 0, 0.7) 100%);
}

.modal-overlay.authors-modal {
    background: radial-gradient(circle at var(--cursor-x, 50%) var(--cursor-y, 50%), 
                               rgba(139, 92, 246, 0.1) 0%, 
                               rgba(0, 0, 0, 0.4) 40%, 
                               rgba(0, 0, 0, 0.7) 100%);
}

/* Iframe Loading Enhancements */
.component-iframe-container {
    width: 100%;
    height: 100%;
    position: relative;
    background-color: #f8fafc;
    border-radius: 0.5rem;
    overflow: hidden;
}

.component-iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.component-iframe.loaded {
    opacity: 1;
}

/* Enhanced Loading States */
.iframe-loading {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    opacity: 1;
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.iframe-loading.fade-out {
    opacity: 0;
    transform: scale(0.95);
}

.loading-spinner-enhanced {
    text-align: center;
    position: relative;
}

.loading-spinner-enhanced .spinner {
    width: 50px;
    height: 50px;
    border: 3px solid #e5e7eb;
    border-top: 3px solid #14b8a6;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 1rem;
    position: relative;
}

.loading-spinner-enhanced .spinner::after {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    border: 3px solid transparent;
    border-top: 3px solid rgba(20, 184, 166, 0.3);
    border-radius: 50%;
    animation: spin 2s linear infinite reverse;
}

.loading-text {
    font-size: 1rem;
    color: #64748b;
    font-weight: 500;
    opacity: 0;
    animation: fadeIn 0.6s ease forwards;
    animation-delay: 0.3s;
}

@keyframes fadeIn {
    to { opacity: 1; }
}

/* Component Modal */
.component-modal-container {
    background: white;
    border-radius: 1rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    width: 95%;
    max-width: 1200px;
    max-height: 95vh;
    overflow: hidden;
    transform: translateY(50px) scale(0.95);
    transition: all 0.3s ease;
}

.modal-overlay.show .component-modal-container {
    transform: translateY(0) scale(1);
}

.component-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid #e5e7eb;
    background: linear-gradient(135deg, #f0fdfa 0%, #ccfbf1 100%);
}

.modal-title-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.modal-component-icon {
    width: 50px;
    height: 50px;
    border-radius: 0.75rem;
    background: linear-gradient(135deg, #14b8a6 0%, #0d9488 100%);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.modal-title-info h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0f766e;
    margin: 0;
}

.modal-subtitle {
    font-size: 0.875rem;
    color: #64748b;
    margin: 0;
}

.modal-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.modal-nav-btn {
    background: none;
    border: 1px solid #d1d5db;
    padding: 0.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    color: #6b7280;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
}

.modal-nav-btn:hover {
    background-color: #f3f4f6;
    border-color: #9ca3af;
    color: #374151;
}

.modal-nav-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #6b7280;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.5rem;
    transition: all 0.2s ease;
}

.modal-close:hover {
    background-color: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

.component-modal-content {
    height: calc(95vh - 100px);
    overflow: hidden;
}

.component-iframe-container {
    width: 100%;
    height: 100%;
    position: relative;
    background-color: #f8fafc;
}

.component-iframe {
    width: 100%;
    height: 100%;
    border: none;
    display: block;
}

.iframe-loading {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #f8fafc;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.loading-spinner {
    text-align: center;
}

.iframe-coming-soon {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #f8fafc;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
}

.coming-soon-content {
    text-align: center;
    max-width: 400px;
    padding: 2rem;
}

.iframe-coming-soon.hidden {
    display: none;
}

/* Mobile adjustments */
@media (max-width: 768px) {
    .component-modal-container {
        width: 98%;
        max-height: 98vh;
    }
    
    .component-modal-header {
        padding: 1rem 1.5rem;
        flex-direction: column;
        gap: 1rem;
        align-items: stretch;
    }
    
    .modal-title-section {
        justify-content: center;
    }
    
    .modal-controls {
        justify-content: center;
    }
    
    .component-modal-content {
        height: calc(98vh - 140px);
    }
    
    .modal-component-icon {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .modal-title-info h2 {
        font-size: 1.25rem;
    }
}

/* =================================================================== */
/* ADDITIONAL IFRAME LOADING FIXES - Add at end to override all conflicts */
/* =================================================================== */

/* Ensure iframe loading always works regardless of animation state */
.component-iframe {
    min-height: 500px \!important;
    width: 100% \!important;
}

/* Fix for intermittent loading issues */
.modal-overlay.show .component-iframe {
    opacity: 1 \!important;
    transition-delay: 0s \!important;
}

/* Override any conflicting animations on modal show */
.modal-overlay.show .component-iframe-container {
    animation-play-state: running \!important;
    animation-delay: 0s \!important;
}

/* Force immediate iframe visibility when modal opens */
.modal-overlay.show .component-iframe.loaded {
    display: block \!important;
    visibility: visible \!important;
    opacity: 1 \!important;
    z-index: 10 \!important;
}

/* Ensure loading states don't conflict */
.iframe-loading {
    z-index: 5 \!important;
}

.iframe-loading.fade-out {
    display: none \!important;
}

/* --- HERO LINK BUTTONS NEUMORPHIC STYLES --- */
.hero-link-neumorphic {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 1rem 0.75rem;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 15px;
    text-decoration: none;
    color: #ccfbf1;
    transition: all 0.3s var(--ease-out-cubic);
    text-align: center;
    min-height: 100px;
    cursor: pointer;
    box-shadow: 
        6px 6px 12px rgba(0, 0, 0, 0.2),
        -6px -6px 12px rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.hero-link-neumorphic::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.hero-link-neumorphic:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 
        8px 8px 16px rgba(0, 0, 0, 0.3),
        -8px -8px 16px rgba(255, 255, 255, 0.15);
}

.hero-link-neumorphic:hover::before {
    left: 100%;
}

.hero-link-neumorphic:active {
    transform: translateY(-1px) scale(0.98);
    box-shadow: 
        inset 4px 4px 8px rgba(0, 0, 0, 0.3),
        inset -4px -4px 8px rgba(255, 255, 255, 0.1);
}

.hero-link-neumorphic span {
    margin-top: 0.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.hero-link-neumorphic:hover span {
    transform: translateY(-1px);
}

/* --- AUTHORS MODAL NEUMORPHIC STYLES --- */
.authors-modal-container {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 25px;
    padding: 0;
    max-width: 900px;
    width: 90%;
    max-height: 90vh;
    box-shadow: 
        12px 12px 24px var(--dark-shadow), 
        -12px -12px 24px var(--light-shadow),
        0 8px 32px rgba(0, 0, 0, 0.1);
    transform: translateY(30px) scale(0.9);
    transition: all 0.5s var(--ease-out-cubic);
    overflow: hidden;
    position: relative;
}

.modal-overlay.show .authors-modal-container {
    transform: translateY(0) scale(1);
}

.authors-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid rgba(226, 232, 240, 0.5);
    background: linear-gradient(135deg, rgba(240, 253, 250, 0.8) 0%, rgba(204, 251, 241, 0.6) 100%);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.authors-modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: #0f766e;
    margin: 0;
    display: flex;
    align-items: center;
    text-shadow: 1px 1px 2px rgba(255, 255, 255, 0.5);
}

.authors-modal-close {
    background: rgba(255, 255, 255, 0.9);
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    color: #64748b;
    padding: 0.75rem;
    border-radius: 50%;
    box-shadow: 4px 4px 8px var(--dark-shadow), -4px -4px 8px var(--light-shadow);
    transition: all 0.3s var(--ease-out-cubic);
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.authors-modal-close:hover {
    color: #0d9488;
    transform: rotate(90deg) scale(1.1);
    box-shadow: 6px 6px 12px var(--dark-shadow), -6px -6px 12px var(--light-shadow);
}

.authors-modal-content {
    padding: 2rem;
    overflow-y: auto;
    max-height: calc(90vh - 100px);
    background: linear-gradient(135deg, rgba(248, 250, 252, 0.5) 0%, rgba(241, 245, 249, 0.3) 100%);
}

.authors-grid-neumorphic {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.author-card-neumorphic {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: 8px 8px 16px var(--dark-shadow), -8px -8px 16px var(--light-shadow);
    transition: all 0.3s var(--ease-out-cubic);
    position: relative;
    overflow: hidden;
}

.author-card-neumorphic::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0.05));
    z-index: -1;
}

.author-card-neumorphic:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 12px 12px 24px var(--dark-shadow), -12px -12px 24px var(--light-shadow);
    border-color: rgba(20, 184, 166, 0.4);
}

.author-header-neumorphic {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
}

.author-avatar-neumorphic {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #e6fffa 0%, #b2f5ea 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
    font-size: 1.5rem;
    color: #0d9488;
    box-shadow: 
        inset 3px 3px 6px rgba(0, 0, 0, 0.1),
        inset -3px -3px 6px rgba(255, 255, 255, 0.8),
        4px 4px 8px var(--dark-shadow);
}

.author-info-neumorphic {
    flex: 1;
}

.author-name-neumorphic {
    font-size: 1.25rem;
    font-weight: 700;
    color: #1f2937;
    margin: 0 0 0.25rem 0;
    display: flex;
    align-items: baseline;
}

.author-rank-neumorphic {
    font-size: 0.75rem;
    color: #0d9488;
    font-weight: 600;
    margin-left: 0.25rem;
    background: rgba(13, 148, 136, 0.1);
    padding: 0.1rem 0.3rem;
    border-radius: 0.25rem;
    box-shadow: inset 1px 1px 2px rgba(0, 0, 0, 0.1);
}

.author-role-neumorphic {
    font-size: 0.875rem;
    color: #6b7280;
    font-weight: 500;
    margin: 0;
}

.author-details-neumorphic {
    margin-top: 1rem;
}

.author-affiliation-neumorphic {
    font-size: 0.875rem;
    color: #4b5563;
    margin: 0 0 1rem 0;
    display: flex;
    align-items: center;
    padding: 0.5rem;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 8px;
    box-shadow: inset 2px 2px 4px var(--dark-shadow), inset -2px -2px 4px var(--light-shadow);
}

.author-links-neumorphic {
    display: flex;
    gap: 0.75rem;
}

.author-link-btn-neumorphic {
    display: inline-flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, #0d9488 0%, #14b8a6 100%);
    color: white;
    text-decoration: none;
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 500;
    box-shadow: 5px 5px 10px var(--dark-shadow), -5px -5px 10px var(--light-shadow);
    transition: all 0.2s var(--ease-out-quad);
    position: relative;
    overflow: hidden;
}

.author-link-btn-neumorphic::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.author-link-btn-neumorphic:hover {
    transform: translateY(-2px) scale(1.05);
    box-shadow: 6px 6px 12px var(--dark-shadow), -6px -6px 12px var(--light-shadow);
}

.author-link-btn-neumorphic:hover::before {
    left: 100%;
}

.author-link-btn-neumorphic:active {
    transform: translateY(1px) scale(0.95);
    box-shadow: inset 4px 4px 8px var(--dark-shadow), inset -4px -4px 8px var(--light-shadow);
}

.author-link-btn-neumorphic.external {
    background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
}

.author-link-btn-neumorphic.external:hover {
    box-shadow: 6px 6px 12px rgba(99, 102, 241, 0.3), -6px -6px 12px var(--light-shadow);
}

.authors-modal-footer {
    padding-top: 1.5rem;
    border-top: 1px solid rgba(229, 231, 235, 0.5);
    text-align: center;
    background: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

.institution-info-neumorphic {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.875rem;
    padding: 0.75rem;
    background: rgba(255, 255, 255, 0.5);
    border-radius: 12px;
    box-shadow: inset 2px 2px 4px var(--dark-shadow), inset -2px -2px 4px var(--light-shadow);
}

/* Mobile adjustments for neumorphic styles */
@media (max-width: 768px) {
    .authors-modal-container {
        width: 95%;
        margin: 1rem;
    }
    
    .authors-modal-header {
        padding: 1rem 1.5rem;
    }
    
    .authors-modal-content {
        padding: 1.5rem;
    }
    
    .authors-modal-title {
        font-size: 1.25rem;
    }
    
    .authors-grid-neumorphic {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .author-card-neumorphic {
        padding: 1rem;
    }
    
    .author-avatar-neumorphic {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
    
    .author-name-neumorphic {
        font-size: 1.1rem;
    }
}

/* ===== NEUMORPHIC PAGE CONTAINER STYLES ===== */
:root {
    --bg-color: #f8fafc;
    --light-shadow: rgba(255, 255, 255, 1);
    --dark-shadow: rgba(148, 163, 184, 0.3);
    --ease-out-quad: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --ease-out-cubic: cubic-bezier(0.215, 0.610, 0.355, 1.000);
}

/* --- Neumorphic Page Container --- */
.neumorphic-page-container {
    background: var(--bg-color);
    border-radius: 25px;
    box-shadow: 
        0 0 24px var(--dark-shadow);
    margin: 1rem;
    padding: 2rem;
    min-height: calc(100vh - 2rem);
    position: relative;
}

.neumorphic-content {
    position: relative;
    z-index: 1;
}

/* --- Mobile Responsive Fixes --- */
@media (max-width: 768px) {
    /* Tab navigation responsive */
    .tab-button {
        min-width: 0;
        flex: 1;
        text-align: center;
    }
    
    /* Video responsive */
    video {
        width: 100% !important;
        height: auto !important;
        max-height: 60vh;
    }
    
    /* Container padding adjustments */
    .neumorphic-page-container {
        margin: 0.5rem;
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    /* Very small screens */
    .tab-button {
        padding: 0.5rem;
        font-size: 0.75rem;
    }
}

/* --- Neumorphic Card Style --- */
.interactive-card {
    background: rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 20px;
    box-shadow: 8px 8px 16px var(--dark-shadow), -8px -8px 16px var(--light-shadow);
    transition: transform 0.35s var(--ease-out-cubic), box-shadow 0.35s var(--ease-out-cubic), border-color 0.35s var(--ease-out-cubic);
    will-change: transform, box-shadow;
}

.interactive-card:hover {
    box-shadow: 12px 12px 24px var(--dark-shadow), -12px -12px 24px var(--light-shadow);
    transform: translateY(-5px);
    border-color: rgba(255, 255, 255, 0.5);
}

.demo-card { 
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.75) 0%, rgba(248, 250, 252, 0.65) 100%); 
    border-color: rgba(226, 232, 240, 0.8);
    border-left: 3px solid #0d9488;
    border-radius: 20px;
    box-shadow: 8px 8px 16px var(--dark-shadow), -8px -8px 16px var(--light-shadow), 0 2px 8px rgba(0, 0, 0, 0.06), 0 1px 3px rgba(0, 0, 0, 0.04);
}

.intro-card { 
    background: linear-gradient(135deg, rgba(254, 252, 232, 0.6) 0%, rgba(254, 243, 199, 0.5) 100%); 
    border-color: rgba(251, 191, 36, 0.5);
    border-radius: 20px;
    box-shadow: 8px 8px 16px var(--dark-shadow), -8px -8px 16px var(--light-shadow);
}

/* --- Neumorphic Button Styles --- */
.neumorphic-btn {
    border-radius: 12px;
    background: linear-gradient(135deg, #0d9488 0%, #14b8a6 100%);
    color: white;
    font-weight: 600;
    box-shadow: 5px 5px 10px var(--dark-shadow), -5px -5px 10px var(--light-shadow);
    transition: all 0.2s var(--ease-out-quad);
    border: none;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}

.neumorphic-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s ease;
}

.neumorphic-btn:hover {
    box-shadow: 6px 6px 12px var(--dark-shadow), -6px -6px 12px var(--light-shadow);
    transform: translateY(-1px) scale(1.02);
}

.neumorphic-btn:hover::before {
    left: 100%;
}

.neumorphic-btn:active {
    box-shadow: inset 4px 4px 8px var(--dark-shadow), inset -4px -4px 8px var(--light-shadow);
    transform: translateY(1px);
}

.neumorphic-btn.primary {
    background: linear-gradient(135deg, #0d9488 0%, #14b8a6 100%);
}