/* ============================
   CSS DESIGN SYSTEM
   TerDU Conference 2024
   ============================ */

:root {
    /* Color Palette */
    --primary-50: #EFF6FF;
    --primary-100: #DBEAFE;
    --primary-200: #BFDBFE;
    --primary-400: #60A5FA;
    --primary-500: #3B82F6;
    --primary-600: #2563EB;
    --primary-700: #1D4ED8;
    --primary-800: #1E40AF;
    --primary-900: #1E3A5F;

    --accent-400: #FBBF24;
    --accent-500: #F59E0B;
    --accent-600: #D97706;

    --purple-400: #A78BFA;
    --purple-500: #8B5CF6;
    --purple-600: #7C3AED;

    --emerald-400: #34D399;
    --emerald-500: #10B981;

    --rose-400: #FB7185;
    --rose-500: #F43F5E;

    /* Neutrals */
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    --gray-950: #020617;

    /* Surfaces */
    --bg-primary: #030712;
    --bg-secondary: #0B1120;
    --bg-card: rgba(15, 23, 42, 0.6);
    --bg-glass: rgba(255, 255, 255, 0.03);

    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-light: rgba(255, 255, 255, 0.1);

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-display: 'Playfair Display', Georgia, serif;

    /* Spacing */
    --section-padding: clamp(4rem, 8vw, 7rem);

    /* Effects */
    --shadow-glow: 0 0 60px rgba(59, 130, 246, 0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================
   RESET & BASE
   ============================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--gray-300);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(1rem, 4vw, 2rem);
}

/* ============================
   NAVIGATION
   ============================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(3, 7, 18, 0.85);
    backdrop-filter: blur(20px) saturate(1.5);
    -webkit-backdrop-filter: blur(20px) saturate(1.5);
    border-bottom: 1px solid var(--border-subtle);
    padding: 0.6rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 clamp(1rem, 4vw, 2rem);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: white;
    font-size: 1.1rem;
    font-weight: 400;
    letter-spacing: -0.01em;
}

.nav-logo strong {
    color: var(--primary-400);
    font-weight: 700;
}

.logo-icon {
    width: 36px;
    height: 36px;
    color: var(--primary-400);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.2rem;
}

.nav-links a {
    padding: 0.5rem 1rem;
    border-radius: var(--radius-sm);
    color: var(--gray-400);
    font-size: 0.88rem;
    font-weight: 500;
    transition: var(--transition);
}

.nav-links a:hover {
    color: white;
    background: rgba(255, 255, 255, 0.05);
}

.nav-download-btn {
    display: inline-flex !important;
    align-items: center;
    gap: 0.4rem;
    background: linear-gradient(135deg, var(--primary-500), var(--purple-500)) !important;
    color: white !important;
    padding: 0.45rem 1rem !important;
    border-radius: 100px !important;
    font-weight: 600 !important;
    font-size: 0.82rem !important;
    box-shadow: 0 2px 12px rgba(59, 130, 246, 0.3);
    transition: var(--transition);
}

.nav-download-btn:hover {
    box-shadow: 0 4px 20px rgba(59, 130, 246, 0.45) !important;
    transform: translateY(-1px);
    background: linear-gradient(135deg, var(--primary-600), var(--purple-600)) !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--gray-300);
    border-radius: 2px;
    transition: var(--transition);
}

/* ============================
   HERO SECTION
   ============================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
}

.hero-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.25;
    filter: blur(1px);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        180deg,
        rgba(3, 7, 18, 0.5) 0%,
        rgba(3, 7, 18, 0.7) 40%,
        rgba(3, 7, 18, 0.95) 100%
    );
}

.hero-particles {
    position: absolute;
    inset: 0;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 6rem 2rem 4rem;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(59, 130, 246, 0.12);
    border: 1px solid rgba(59, 130, 246, 0.25);
    color: var(--primary-400);
    padding: 0.5rem 1.2rem;
    border-radius: 100px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 2rem;
    animation: fadeInDown 0.8s ease-out;
}

.badge-dot {
    width: 7px;
    height: 7px;
    background: var(--primary-400);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 5.5vw, 4rem);
    font-weight: 700;
    line-height: 1.15;
    color: white;
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.8s ease-out 0.1s both;
}

.title-line {
    display: block;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-400) 0%, var(--purple-400) 50%, var(--accent-400) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 1.8vw, 1.15rem);
    color: var(--gray-400);
    max-width: 640px;
    margin: 0 auto 2rem;
    line-height: 1.7;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

.hero-meta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
    animation: fadeInUp 0.8s ease-out 0.3s both;
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--gray-300);
    font-size: 0.9rem;
    font-weight: 500;
}

.meta-item svg {
    width: 18px;
    height: 18px;
    color: var(--primary-400);
    flex-shrink: 0;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.85rem 1.8rem;
    border-radius: 100px;
    font-size: 0.92rem;
    font-weight: 600;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

.btn svg {
    width: 18px;
    height: 18px;
    transition: transform 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-500), var(--purple-500));
    color: white;
    box-shadow: 0 4px 24px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.4);
    transform: translateY(-2px);
}

.btn-primary:hover svg {
    transform: translateX(4px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    color: var(--gray-200);
    border: 1px solid var(--border-light);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* Scroll indicator */
.scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

.scroll-mouse {
    width: 26px;
    height: 40px;
    border: 2px solid var(--gray-600);
    border-radius: 13px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-wheel {
    width: 3px;
    height: 8px;
    background: var(--primary-400);
    border-radius: 3px;
    animation: scroll-wheel 2s ease-in-out infinite;
}

@keyframes scroll-wheel {
    0% { transform: translateY(0); opacity: 1; }
    100% { transform: translateY(12px); opacity: 0; }
}

/* ============================
   SECTIONS COMMON
   ============================ */
.section {
    padding: var(--section-padding) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 3.5rem;
}

.section-tag {
    display: inline-block;
    color: var(--primary-400);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.8rem;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--gray-400);
    max-width: 640px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ============================
   ABOUT SECTION
   ============================ */
.about {
    background: var(--bg-secondary);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.about-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
}

.about-card:hover {
    border-color: rgba(59, 130, 246, 0.2);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.about-card-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 1.2rem;
}

.about-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
}

.about-card p {
    font-size: 0.9rem;
    color: var(--gray-400);
}

/* Quote Block */
.quote-block {
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.08), rgba(139, 92, 246, 0.06));
    border: 1px solid rgba(59, 130, 246, 0.15);
    border-radius: var(--radius-xl);
    padding: 3rem;
    position: relative;
    overflow: hidden;
}

.quote-block::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 3rem;
    right: 3rem;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--primary-500), var(--purple-500), transparent);
}

.quote-mark {
    font-family: var(--font-display);
    font-size: 5rem;
    line-height: 1;
    color: var(--primary-500);
    opacity: 0.3;
    margin-bottom: -1.5rem;
}

blockquote {
    font-size: 1.1rem;
    color: var(--gray-200);
    line-height: 1.8;
    font-style: italic;
    margin-bottom: 1.5rem;
}

cite {
    display: flex;
    flex-direction: column;
    font-style: normal;
}

cite strong {
    color: white;
    font-size: 1rem;
}

cite span {
    color: var(--primary-400);
    font-size: 0.85rem;
    font-weight: 500;
}

/* ============================
   SECTIONS GRID
   ============================ */
.sections-area {
    background: var(--bg-primary);
}

.sections-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
}

.section-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2.2rem;
    position: relative;
    transition: var(--transition);
    overflow: hidden;
}

.section-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-500), var(--purple-500));
    opacity: 0;
    transition: var(--transition);
}

.section-card:hover {
    border-color: rgba(59, 130, 246, 0.2);
    transform: translateY(-5px);
    box-shadow: var(--shadow-glow);
}

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

.card-number {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 2.5rem;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.03);
    line-height: 1;
    font-family: var(--font-display);
}

.card-icon {
    font-size: 2.2rem;
    margin-bottom: 1rem;
}

.section-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.7rem;
    line-height: 1.4;
}

.section-card p {
    font-size: 0.88rem;
    color: var(--gray-400);
    margin-bottom: 1.2rem;
}

.card-topics {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.card-topics li {
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.15);
    color: var(--primary-400);
    padding: 0.3rem 0.8rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* ============================
   SPEAKERS
   ============================ */
.speakers {
    background: var(--bg-secondary);
}

.speakers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.speaker-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
}

.speaker-card:hover {
    border-color: rgba(59, 130, 246, 0.2);
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.speaker-avatar {
    margin-bottom: 1.2rem;
}

.avatar-placeholder {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-600), var(--purple-600));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    font-size: 1.3rem;
    font-weight: 700;
    color: white;
    letter-spacing: 0.05em;
}

.speaker-card h3 {
    font-size: 1.05rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.3rem;
}

.speaker-title {
    font-size: 0.82rem;
    color: var(--primary-400);
    font-weight: 600;
    margin-bottom: 0.2rem;
}

.speaker-org {
    font-size: 0.82rem;
    color: var(--gray-500);
    margin-bottom: 1rem;
}

.speaker-topic {
    display: inline-block;
    background: rgba(59, 130, 246, 0.08);
    border: 1px solid rgba(59, 130, 246, 0.12);
    color: var(--gray-300);
    padding: 0.4rem 0.9rem;
    border-radius: var(--radius-sm);
    font-size: 0.78rem;
    font-style: italic;
}

/* ============================
   STATS
   ============================ */
.stats {
    background: var(--bg-primary);
    position: relative;
}

.stats::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(ellipse at center, rgba(59, 130, 246, 0.06) 0%, transparent 70%);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    position: relative;
}

.stat-card {
    text-align: center;
    padding: 2.5rem 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.stat-card:hover {
    border-color: rgba(59, 130, 246, 0.2);
    transform: scale(1.03);
}

.stat-number {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary-400), var(--accent-400));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.9rem;
    color: var(--gray-400);
    font-weight: 500;
    margin-bottom: 1rem;
}

.stat-bar {
    width: 40px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-500), var(--purple-500));
    border-radius: 3px;
    margin: 0 auto;
}

/* ============================
   EDITORIAL / INFO
   ============================ */
.editorial {
    background: var(--bg-secondary);
}

.editorial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.editorial-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 2rem;
}

.editorial-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1.2rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid var(--border-subtle);
}

.editorial-list li {
    padding: 0.8rem 0;
    border-bottom: 1px solid var(--border-subtle);
}

.editorial-list li:last-child {
    border-bottom: none;
}

.editorial-list strong {
    display: block;
    color: white;
    font-size: 0.95rem;
    margin-bottom: 0.2rem;
}

.editorial-list span {
    font-size: 0.82rem;
    color: var(--gray-500);
}

.editorial-members {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.member-chip {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-subtle);
    color: var(--gray-300);
    padding: 0.4rem 0.9rem;
    border-radius: 100px;
    font-size: 0.82rem;
    font-weight: 500;
    transition: var(--transition);
}

.member-chip:hover {
    border-color: rgba(59, 130, 246, 0.3);
    background: rgba(59, 130, 246, 0.08);
    color: var(--primary-400);
}

/* Publication Info */
.pub-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}

.pub-item {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1.5rem;
    transition: var(--transition);
}

.pub-item:hover {
    border-color: rgba(59, 130, 246, 0.15);
}

.pub-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}

.pub-item strong {
    display: block;
    color: white;
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
}

.pub-item p {
    font-size: 0.82rem;
    color: var(--gray-500);
}

/* ============================
   FOOTER
   ============================ */
.footer {
    background: var(--gray-950);
    border-top: 1px solid var(--border-subtle);
    padding: 3rem 0 1.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 2.5rem;
}

.footer-brand h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.8rem;
}

.footer-brand p {
    font-size: 0.88rem;
    color: var(--gray-500);
    max-width: 360px;
}

.footer-links h4,
.footer-contact h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: white;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 1rem;
}

.footer-links a {
    display: block;
    color: var(--gray-500);
    font-size: 0.88rem;
    padding: 0.3rem 0;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-400);
    transform: translateX(4px);
}

.footer-contact p {
    font-size: 0.85rem;
    color: var(--gray-500);
    padding: 0.2rem 0;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-subtle);
    font-size: 0.8rem;
    color: var(--gray-600);
}

/* ============================
   ANIMATIONS
   ============================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Scroll animations */
[data-aos] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

[data-aos].aos-animate {
    opacity: 1;
    transform: translateY(0);
}

[data-aos="zoom-in"] {
    transform: scale(0.9);
}

[data-aos="zoom-in"].aos-animate {
    transform: scale(1);
}

[data-aos="fade-right"] {
    transform: translateX(-30px);
}

[data-aos="fade-right"].aos-animate {
    transform: translateX(0);
}

[data-aos="fade-left"] {
    transform: translateX(30px);
}

[data-aos="fade-left"].aos-animate {
    transform: translateX(0);
}

/* Particle styles */
.particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: var(--primary-400);
    border-radius: 50%;
    opacity: 0.3;
    animation: float-particle linear infinite;
}

@keyframes float-particle {
    0% {
        transform: translateY(100vh) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 0.3;
    }
    90% {
        opacity: 0.3;
    }
    100% {
        transform: translateY(-100vh) scale(1);
        opacity: 0;
    }
}

/* ============================
   RESPONSIVE
   ============================ */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(3, 7, 18, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 0.5rem;
        z-index: 999;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        font-size: 1.2rem;
        padding: 0.8rem 2rem;
    }

    .nav-toggle {
        display: flex;
        z-index: 1001;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .hero-content {
        padding: 5rem 1rem 3rem;
    }

    .hero-meta {
        flex-direction: column;
        align-items: center;
        gap: 0.8rem;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 0.5rem;
        text-align: center;
    }

    .sections-grid {
        grid-template-columns: 1fr;
    }

    .speakers-grid {
        grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    }

    .editorial-grid {
        grid-template-columns: 1fr;
    }

    .pub-info {
        grid-template-columns: 1fr;
    }

    .quote-block {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }

    .stat-number {
        font-size: 2.5rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .about-grid {
        grid-template-columns: 1fr;
    }
}