/* ==========================================================================
   Nicola Silvestre - Personal Editorial Website 
   Aesthetic: Light Minimal "Honest" (ispirato a Gaito / Perfetti)
   ========================================================================== */

/* --- CSS Variables --- */
:root {
    /* Colors - Light Minimal Palette */
    --bg-color: #ffffff;
    --bg-surface: #ffffff; /* Flat approach, using borders/whitespace instead of background differences */
    --bg-alt: #f3f4f6; /* Very subtle grey for alternate sections if needed */
    --text-main: #111827; /* Dark Grey / Almost Black for high contrast */
    --text-muted: #4b5563; /* Medium Grey for secondary text */
    --text-light: #9ca3af;
    --accent: #0F3460; /* Pure black for primary actions/highlights */
    --border-light: #e5e7eb;
    --border-dark: #111827;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 4rem;
    --space-xl: 8rem;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-smooth: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

ul {
    list-style: none;
}

img, svg {
    max-width: 100%;
    display: block;
}

.container {
    width: 100%;
    max-width: 1000px; /* Tighter container for a more editorial read */
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.section {
    padding: var(--space-xl) 0;
}

.section-title {
    font-family: var(--font-serif);
    font-size: 2.75rem; /* Slightly larger, more dominant */
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--accent);
    letter-spacing: -0.02em;
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.25rem;
    max-width: 700px;
    margin-bottom: var(--space-lg);
    line-height: 1.5;
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: 0; /* Sharp corners for minimal honest look */
    transition: all var(--transition-fast);
    cursor: pointer;
    border: 1px solid var(--accent);
}

.btn-primary {
    background-color: var(--accent);
    color: var(--bg-color);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--accent);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-main);
    border-color: var(--border-light);
}

.btn-secondary:hover {
    border-color: var(--accent);
}

/* --- Header & Nav --- */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    z-index: 1000;
    transition: transform var(--transition-smooth), border-color var(--transition-smooth), background-color var(--transition-smooth), box-shadow var(--transition-smooth);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
    max-width: 1200px; /* Header can be wider than main content container */
}

.logo a {
    font-family: var(--font-sans);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: -0.03em;
    text-transform: uppercase; /* Modern distinct touch */
}

.main-nav {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--accent); /* Black for maximum contrast on white */
}

.nav-links a:hover {
    color: var(--text-muted);
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent); /* Black */
}

.social-icon:hover {
    color: var(--text-muted);
}

.mobile-menu-toggle {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    width: 30px;
    height: 20px;
    position: relative;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background-color: var(--text-main);
    position: absolute;
    transition: transform var(--transition-fast), top var(--transition-fast);
}

.mobile-menu-toggle span:first-child { top: 0; }
.mobile-menu-toggle span:last-child { top: auto; bottom: 0; }

.mobile-menu-toggle.active span:first-child {
    transform: translateY(9px) rotate(45deg);
}
.mobile-menu-toggle.active span:last-child {
    transform: translateY(-9px) rotate(-45deg);
}

/* --- Hero Section --- */
.hero {
    min-height: 90vh; /* slightly shorter than 100vh for minimal look */
    display: flex;
    align-items: center;
    padding-top: 120px; /* Offset for header + breathing room */
}

.hero-split {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: var(--space-xl);
    align-items: center;
}

.hero-text-content {
    max-width: 650px;
}

.hero-eyebrow {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: var(--space-md);
    font-weight: 600;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 4rem;
    line-height: 1.1;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: var(--space-md);
    letter-spacing: -0.02em;
}

.hero-title i {
    color: var(--accent);
    font-style: italic;
    font-weight: 400;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: var(--space-lg);
    line-height: 1.7;
}

/* Typewriter Cursor */
.typewriter-cursor {
    display: inline-block;
    width: 3px;
    height: 1em;
    background-color: var(--accent);
    vertical-align: text-bottom;
    margin-left: 2px;
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.hero-ctas {
    display: flex;
    gap: var(--space-sm);
}

.hero-image-content {
    position: relative;
    width: 100%;
    background-color: transparent;
    border-radius: 4px;
    overflow: hidden;
}

.hero-image-content img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.placeholder-box {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--text-muted);
    background-color: #f3f4f6;
    border: 1px dashed var(--border-light);
    font-size: 0.9rem;
    padding: var(--space-md);
}

/* --- Chi Sono Section --- */
.chi-sono {
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
    background-color: var(--bg-alt);
}

.chi-sono-grid {
    display: grid;
    grid-template-columns: 2fr 1fr; /* More emphasis on the text */
    gap: var(--space-xl);
}

.chi-sono-text .lead {
    font-size: 1.75rem;
    color: var(--accent);
    margin-bottom: var(--space-md);
    line-height: 1.4;
    font-family: var(--font-serif);
}

.chi-sono-text p:not(.lead) {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

.chi-sono-highlights {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.highlight-item h3 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent);
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.highlight-item p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* --- Editorial Thesis (Quote) --- */
.editorial-thesis {
    padding: var(--space-lg) 0;
    text-align: center;
}

.thesis-container {
    max-width: 800px;
}

.thesis-content blockquote {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    line-height: 1.3;
    color: var(--accent);
    font-style: italic;
    margin-bottom: var(--space-md);
    letter-spacing: -0.01em;
}

.thesis-author {
    color: var(--text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 600;
}

/* --- Articoli Section --- */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--space-lg);
}

.article-card {
    background-color: transparent;
    padding-bottom: var(--space-md);
    border-bottom: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    height: 100%;
}


.article-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-sm);
    color: var(--text-muted);
    font-weight: 600;
}

.article-meta .category {
    color: var(--accent);
}

.article-title {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    color: var(--accent);
    margin-bottom: var(--space-md);
    line-height: 1.2;
}

.article-excerpt {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: var(--space-md);
    flex-grow: 1;
}

.read-more {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.read-more:hover .arrow {
    transform: translateX(4px);
}

.arrow {
    transition: transform var(--transition-fast);
}

/* --- Ultime notizie AI Section --- */
.notizie-ai {
    background-color: var(--bg-alt);
    border-top: 1px solid var(--border-light);
}

.news-list {
    display: flex;
    flex-direction: column;
}

.news-item {
    border-top: 1px solid var(--border-light);
    padding: var(--space-md) 0;
}

.news-item:first-child {
    border-top: 2px solid var(--accent);
}

.news-header {
    display: flex;
    gap: var(--space-md);
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.news-date {
    font-variant-numeric: tabular-nums;
    font-weight: 500;
}

.news-category {
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent);
    font-size: 0.75rem;
    font-weight: 700;
}

.news-title {
    font-size: 1.5rem;
    font-weight: 600;
    font-family: var(--font-serif);
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.news-summary {
    color: var(--text-muted);
    margin-bottom: var(--space-md);
    font-size: 1.05rem;
    max-width: 800px;
}

.news-takeaway {
    font-size: 0.95rem;
    color: var(--text-main);
    background: #ffffff;
    padding: var(--space-md);
    border-left: 3px solid var(--accent);
    max-width: 800px;
}

/* --- Contattami Section --- */
.contattami {
    padding-bottom: var(--space-xl);
    border-top: 1px solid var(--border-light);
}

.contact-card {
    /* pure minimal */
    max-width: 800px;
    margin: 0;
}

.contact-desc {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: var(--space-lg);
    line-height: 1.6;
}

.contact-methods {
    display: flex;
    flex-direction: column;
    gap: var(--space-lg);
    margin-bottom: var(--space-lg);
}

.contact-item {
    display: flex;
    flex-direction: column;
}

.contact-label {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.contact-link {
    font-family: var(--font-sans);
    font-size: 1.75rem;
    font-weight: 400;
    color: var(--accent);
    text-decoration: none;
    position: relative;
    display: inline-block;
    align-self: flex-start;
    padding-bottom: 4px;
    border-bottom: none;
}

.contact-link::after {
    content: '';
    position: absolute;
    width: 100%;
    transform: scaleX(0);
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--accent);
    transform-origin: bottom right;
    transition: transform 0.3s ease-out;
}

.contact-link:hover {
    color: var(--accent);
}

.contact-link:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

.contact-actions {
    display: flex;
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

/* --- Code Editor Window --- */
.contact-split {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-xl);
    align-items: center;
}

@media (max-width: 900px) {
    .contact-split {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
}

.code-editor-window {
    background-color: #1e1e1e;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
    color: #d4d4d4;
    font-size: 0.95rem;
    line-height: 1.5;
    text-align: left;
}

.code-editor-header {
    background-color: #2d2d2d;
    padding: 0.75rem 1rem;
    display: flex;
    gap: 8px;
    border-bottom: 1px solid #111;
}

.mac-btn {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    display: inline-block;
}
.mac-btn.close { background-color: #ff5f56; }
.mac-btn.minimize { background-color: #ffbd2e; }
.mac-btn.maximize { background-color: #27c93f; }

.code-editor-body {
    padding: 1.5rem;
    min-height: 200px;
    position: relative;
    overflow-x: auto;
}

.code-editor-body pre {
    margin: 0;
    white-space: pre-wrap;
    word-break: break-all;
}

.py-cursor {
    display: inline-block;
    width: 8px;
    height: 15px;
    background-color: #d4d4d4;
    vertical-align: middle;
    animation: blink 1s step-end infinite;
}

.py-keyword { color: #569cd6; } /* def, return, import */
.py-function { color: #dcdcaa; } /* collaborate */
.py-string { color: #ce9178; }

/* --- Footer --- */
.site-footer {
    border-top: 1px solid var(--border-light);
    padding: var(--space-lg) 0 var(--space-md);
    font-size: 0.9rem;
    color: var(--text-muted);
    background-color: var(--bg-color);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-end; /* Align bottom to let logo sit nicely with links */
}

.footer-left {
    max-width: 300px;
}

.footer-logo {
    font-family: var(--font-sans);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 1.1rem;
    color: var(--accent);
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.footer-tagline {
    font-size: 0.95rem;
}

.footer-right {
    text-align: right;
}

.footer-links {
    display: flex;
    gap: var(--space-md);
    margin-bottom: 1rem;
    justify-content: flex-end;
}

.footer-links a {
    font-weight: 500;
}

.footer-links a:hover {
    color: var(--accent);
}

.copyright {
    font-size: 0.85rem;
    color: var(--text-light);
}

/* --- Animations & Utilities --- */
.fade-in-section {
    opacity: 0;
    transform: translateY(20px);
    visibility: hidden;
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
    will-change: opacity, visibility;
}

.fade-in-section.is-visible {
    opacity: 1;
    transform: none;
    visibility: visible;
}

/* --- Responsive --- */
@media (max-width: 900px) {
    .chi-sono-grid {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }

    .hero-split {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text-content {
        max-width: 100%;
        margin: 0 auto;
    }

    .hero-ctas {
        justify-content: center;
    }

    .hero-image-content {
        max-width: 400px;
        margin: 0 auto;
    }

    .hero-title {
        font-size: 3.5rem;
    }
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }

    .main-nav {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background-color: var(--bg-color);
        border-bottom: 1px solid var(--border-light);
        padding: var(--space-md);
        flex-direction: column;
        align-items: flex-start;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-smooth);
    }

    .main-nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-links {
        flex-direction: column;
        gap: 1.5rem;
        width: 100%;
    }
    
    .nav-links a {
        font-size: 1.2rem;
    }

    .social-icon {
        margin-top: 1rem;
    }

    .hero-title {
        font-size: 2.75rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }

    .section {
        padding: var(--space-lg) 0;
    }

    .section-title {
        font-size: 2.25rem;
    }

    .hero-ctas {
        flex-direction: column;
        width: 100%;
    }

    .btn {
        width: 100%;
    }

    .contact-actions {
        flex-direction: column;
    }

    .contact-link {
        font-size: 1.5rem;
    }
    
    .footer-container {
        flex-direction: column;
        gap: var(--space-md);
        align-items: flex-start;
    }
    
    .footer-right {
        text-align: left;
    }
    
    .footer-links {
        justify-content: flex-start;
    }
}

/* --- AI Chat Widget --- */
.ai-chat-widget {
    position: fixed;
    bottom: var(--space-md);
    right: var(--space-md);
    z-index: 9999;
    font-family: var(--font-sans);
}

.chat-toggle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background-color: var(--accent);
    color: var(--bg-color);
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform var(--transition-fast);
}

.chat-toggle:hover {
    transform: scale(1.05);
}

.chat-window {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 350px;
    background-color: var(--bg-color);
    border: 1px solid var(--border-light);
    border-radius: 4px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform-origin: bottom right;
}

.chat-header {
    background-color: var(--accent);
    color: var(--bg-color);
    padding: var(--space-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-header h3 {
    font-size: 0.95rem;
    font-weight: 500;
}

.close-chat {
    background: none;
    border: none;
    color: var(--bg-color);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
}

.chat-body {
    padding: var(--space-sm);
    height: 300px;
    overflow-y: auto;
    background-color: #fafafa;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.message {
    padding: 0.75rem;
    border-radius: 4px;
    font-size: 0.9rem;
    max-width: 85%;
    line-height: 1.4;
}

.bot-message {
    background-color: #e5e7eb;
    color: var(--text-main);
    align-self: flex-start;
}

.user-message {
    background-color: var(--accent);
    color: var(--bg-color);
    align-self: flex-end;
}

.chat-input-area {
    display: flex;
    padding: var(--space-sm);
    background-color: var(--bg-color);
    border-top: 1px solid var(--border-light);
}

.chat-input-area input {
    flex-grow: 1;
    border: 1px solid var(--border-light);
    padding: 0.5rem 0.75rem;
    border-radius: 2px;
    outline: none;
    font-size: 0.9rem;
}

.chat-input-area input:focus {
    border-color: var(--accent);
}

.chat-input-area button {
    background: var(--accent);
    color: var(--bg-color);
    border: none;
    padding: 0 0.75rem;
    margin-left: 0.5rem;
    border-radius: 2px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

@media (max-width: 400px) {
    .chat-window {
        width: 300px;
        right: -10px;
    }
}

/* ==========================================================================
   DYNAMIC FRAME EFFECT
   4 linee nere che si disegnano attorno alla foto allo scroll.
   Controllate via JS con --frame-progress (0 → 1)
   ========================================================================== */

.dynamic-frame {
    position: absolute;
    top: -6px;
    left: -6px;
    right: -6px;
    bottom: -6px;
    pointer-events: none;
    z-index: 10;
}

.frame-line {
    position: absolute;
    background-color: var(--accent);
}

/* Linea superiore: si disegna da sinistra a destra */
.frame-top {
    top: 0;
    left: 0;
    height: 2px;
    width: 100%;
    transform: scaleX(var(--frame-progress, 0));
    transform-origin: left;
}

/* Linea destra: si disegna dall'alto in basso */
.frame-right {
    top: 0;
    right: 0;
    width: 2px;
    height: 100%;
    transform: scaleY(var(--frame-progress, 0));
    transform-origin: top;
}

/* Linea inferiore: si disegna da destra a sinistra */
.frame-bottom {
    bottom: 0;
    right: 0;
    height: 2px;
    width: 100%;
    transform: scaleX(var(--frame-progress, 0));
    transform-origin: right;
}

/* Linea sinistra: si disegna dal basso in alto */
.frame-left {
    bottom: 0;
    left: 0;
    width: 2px;
    height: 100%;
    transform: scaleY(var(--frame-progress, 0));
    transform-origin: bottom;
}

/* --- Accessibility: Focus Styles --- */
a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* Skip-to-content (screen readers) */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent);
    color: var(--bg-color);
    padding: 0.5rem 1rem;
    z-index: 10000;
    font-size: 0.9rem;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
}

/* --- Chat Widget: Typing Indicator --- */
.typing-indicator {
    opacity: 0.7;
    animation: pulse 1.2s ease-in-out infinite;
    font-size: 1.2rem;
    letter-spacing: 0.2em;
}

@keyframes pulse {
    0%, 100% { opacity: 0.4; }
    50% { opacity: 1; }
}

/* --- Chat Widget: Disabled State --- */
.chat-input-area input:disabled {
    background-color: var(--bg-alt);
    cursor: not-allowed;
}

.chat-input-area button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* --- Article Card Hover --- */
.article-card {
    transition: transform var(--transition-fast);
}

.article-card:hover {
    transform: translateY(-2px);
}

/* --- Smooth scroll behavior for reduced motion --- */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* --- Stili Laboratorio AI --- */

        .lab-hero {
            padding-top: 140px;
            padding-bottom: 40px;
            text-align: center;
        }
        .lab-title {
            font-size: 2.8rem;
            font-family: var(--font-serif);
            margin-bottom: 1rem;
            color: var(--accent);
        }
        .lab-subtitle {
            font-size: 1.1rem;
            color: var(--text-muted);
            margin-bottom: 2rem;
        }
        .lab-search-container {
            max-width: 650px;
            margin: 0 auto;
            position: relative;
        }
        .lab-search-input {
            width: 100%;
            padding: 1.2rem 1.5rem;
            padding-right: 3rem;
            font-size: 1.1rem;
            border: 1px solid #e5e7eb;
            border-radius: 0;
            box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
            outline: none;
            transition: all 0.3s ease;
            font-family: var(--font-sans);
            color: var(--text-main);
        }
        .lab-search-input::placeholder {
            color: #9ca3af;
        }
        .lab-search-input:focus {
            border-color: #d1d5db;
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
        }
        .lab-search-icon {
            position: absolute;
            right: 1.2rem;
            top: 50%;
            transform: translateY(-50%);
            color: #9ca3af;
            pointer-events: none;
        }
        
        .lab-tags {
            display: flex;
            justify-content: center;
            gap: 0.6rem;
            margin-top: 1.5rem;
            flex-wrap: wrap;
        }
        .lab-tag {
            padding: 0.4rem 1rem;
            background-color: transparent;
            border: 1px solid #e5e7eb;
            border-radius: 20px;
            font-size: 0.85rem;
            font-weight: 500;
            color: var(--text-muted);
            cursor: pointer;
            transition: all 0.2s;
        }
        .lab-tag:hover {
            background-color: #f3f4f6;
            color: var(--text-main);
        }
        .lab-tag.active {
            background-color: var(--text-main);
            color: #ffffff;
            border-color: var(--text-main);
        }

        .lab-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 1.5rem;
            padding-bottom: 80px;
        }

        .lab-card {
            background: #ffffff;
            border: 1px solid #e5e7eb;
            border-radius: 0;
            padding: 1.5rem;
            transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
            display: flex;
            flex-direction: column;
            text-align: left;
            text-decoration: none; /* In case it's an anchor */
            color: inherit;
        }
        .lab-card:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 20px -5px rgba(0, 0, 0, 0.05);
            border-color: #d1d5db;
        }
        
        .lab-card-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 1rem;
        }
        .lab-card-icon {
            width: 42px;
            height: 42px;
            background: #f9fafb;
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--text-main);
            border: 1px solid #f3f4f6;
        }
        .lab-card-status {
            font-size: 0.7rem;
            padding: 0.2rem 0.6rem;
            border-radius: 0;
            font-weight: 600;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }
        .status-live { background: #dcfce7; color: #166534; }
        .status-beta { background: #fef08a; color: #854d0e; }
        .status-wip { background: #f3f4f6; color: #4b5563; }

        .lab-card-title {
            font-size: 1.15rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
            color: var(--text-main);
            font-family: var(--font-sans);
        }
        .lab-card-desc {
            font-size: 0.95rem;
            color: var(--text-muted);
            line-height: 1.5;
            margin-bottom: 1.5rem;
            flex-grow: 1;
        }
        .lab-card-footer {
            margin-top: auto;
            border-top: 1px solid #f3f4f6;
            padding-top: 1rem;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .lab-card-category {
            font-size: 0.8rem;
            color: #9ca3af;
            font-weight: 500;
            text-transform: uppercase;
            letter-spacing: 0.02em;
        }
        .lab-card-btn {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-main);
            display: flex;
            align-items: center;
            gap: 4px;
        }
        .lab-card-btn svg {
            transition: transform 0.2s;
        }
        .lab-card:hover .lab-card-btn svg {
            transform: translateX(3px);
        }

        /* Message when no results */
        .no-results {
            text-align: center;
            padding: 3rem;
            color: var(--text-muted);
            grid-column: 1 / -1;
            display: none;
            border: 1px dashed #e5e7eb;
            border-radius: 0;
            background: #f9fafb;
        }
    
/* --- Chat UI Enhancements --- */
.chat-window { animation: chatSlideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1); transform-origin: bottom right; }
@keyframes chatSlideUp { from { opacity: 0; transform: scale(0.9) translateY(20px); } to { opacity: 1; transform: scale(1) translateY(0); } }
.online-indicator { display: inline-block; width: 8px; height: 8px; background-color: #22c55e; border-radius: 50%; margin-left: 8px; box-shadow: 0 0 0 2px rgba(34,197,94,0.2); animation: pulseGreen 2s infinite; }
@keyframes pulseGreen { 0% { box-shadow: 0 0 0 0 rgba(34,197,94,0.4); } 70% { box-shadow: 0 0 0 6px rgba(34,197,94,0); } 100% { box-shadow: 0 0 0 0 rgba(34,197,94,0); } }
.msg-time { display: block; font-size: 0.65rem; color: var(--text-light); margin-bottom: 3px; text-align: left; opacity: 0.8; }
.user-message .msg-time { color: rgba(255,255,255,0.7); text-align: right; }