/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
    /* Colors */
    --primary: #0c7b93;
    --primary-dark: #095e72;
    --primary-light: #e0f4f8;
    --primary-glow: rgba(12, 123, 147, 0.15);
    --accent: #27ae96;
    --accent-light: #e8f8f5;

    --text-dark: #1a2332;
    --text-body: #4a5568;
    --text-muted: #8896a8;
    --text-light: #ffffff;

    --bg-white: #ffffff;
    --bg-light: #f7fafb;
    --bg-section: #f0f5f7;
    --bg-dark: #0f1923;
    --bg-card: #ffffff;

    --border-light: #e8edf2;
    --border-medium: #d0d7de;

    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 24px 64px rgba(0, 0, 0, 0.14);

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 9999px;

    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

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

    /* Spacing */
    --nav-height: 72px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--text-body);
    background: var(--bg-white);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

ul,
ol {
    list-style: none;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--text-dark);
    line-height: 1.3;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--nav-height);
    z-index: 1000;
    transition: all var(--transition-base);
    background: transparent;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 20px rgba(0, 0, 0, 0.08);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--text-light);
    transition: color var(--transition-fast);
}

.navbar.scrolled .nav-logo {
    color: var(--text-dark);
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    background: rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
}

.navbar.scrolled .logo-icon {
    background: var(--primary-light);
    color: var(--primary);
}

.logo-text {
    letter-spacing: -0.02em;
}

.logo-year {
    opacity: 0.6;
    font-weight: 400;
    font-size: 0.85em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-menu a {
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.navbar.scrolled .nav-menu a {
    color: var(--text-body);
}

.nav-menu a:hover {
    color: var(--text-light);
    background: rgba(255, 255, 255, 0.1);
}

.navbar.scrolled .nav-menu a:hover {
    color: var(--primary);
    background: var(--primary-light);
}

.nav-cta {
    background: var(--accent) !important;
    color: var(--text-light) !important;
    padding: 8px 20px !important;
    border-radius: var(--radius-full) !important;
    font-weight: 600 !important;
    margin-left: 8px;
}

.nav-cta:hover {
    background: var(--primary) !important;
    transform: translateY(-1px);
}

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

.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-light);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.navbar.scrolled .nav-toggle span {
    background: var(--text-dark);
}

/* ============================================
   HERO
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(135deg, #0a2840 0%, #0c4f6b 40%, #0c7b93 70%, #27ae96 100%);
    overflow: hidden;
    padding: 120px 24px 80px;
}

.hero-bg-shapes {
    position: absolute;
    inset: 0;
    pointer-events: none;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    opacity: 0.08;
}

.shape-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, #27ae96, transparent);
    top: -200px;
    right: -100px;
    animation: float 20s ease-in-out infinite;
}

.shape-2 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, #0c7b93, transparent);
    bottom: -100px;
    left: -100px;
    animation: float 25s ease-in-out infinite reverse;
}

.shape-3 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, #fff, transparent);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation: pulse 15s ease-in-out infinite;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(30px, -20px) scale(1.05);
    }

    66% {
        transform: translate(-20px, 15px) scale(0.95);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 0.05;
        transform: translate(-50%, -50%) scale(1);
    }

    50% {
        opacity: 0.1;
        transform: translate(-50%, -50%) scale(1.2);
    }
}

.hero-container {
    text-align: center;
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 8px 20px;
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 32px;
    letter-spacing: 0.02em;
}

.hero-badge svg {
    flex-shrink: 0;
    color: #f5c542;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(2.2rem, 5vw, 3.6rem);
    font-weight: 700;
    color: var(--text-light);
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.hero-highlight {
    position: relative;
    display: inline;
    background: linear-gradient(120deg, #f5c542, #f0a830);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1.3rem, 3vw, 1.8rem);
    font-weight: 300;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 40px;
    letter-spacing: 0.15em;
    /* text-transform: uppercase; */
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    padding: 10px 18px;
    border-radius: var(--radius-full);
    font-size: 0.88rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
}

.meta-free {
    background: rgba(39, 174, 150, 0.25);
    border-color: rgba(39, 174, 150, 0.4);
    color: #a8f0df;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 32px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    font-family: var(--font-body);
}

.btn-primary {
    background: linear-gradient(135deg, #f5c542, #f0a830);
    color: #1a2332;
    box-shadow: 0 4px 20px rgba(245, 197, 66, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(245, 197, 66, 0.45);
}

.btn-outline {
    background: transparent;
    color: var(--text-light);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 16px 40px;
    font-size: 1.05rem;
}

.hero-organizer {
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.5);
}

.hero-organizer span {
    font-weight: 600;
    color: rgba(255, 255, 255, 0.7);
}

.hero-scroll {
    position: absolute;
    bottom: 60px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.hero-scroll a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.2);
    color: rgba(255, 255, 255, 0.5);
    animation: bounceDown 2s ease-in-out infinite;
    transition: all var(--transition-fast);
}

.hero-scroll a:hover {
    border-color: rgba(255, 255, 255, 0.5);
    color: rgba(255, 255, 255, 0.8);
}

@keyframes bounceDown {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(8px);
    }
}

/* ============================================
   COUNTDOWN
   ============================================ */
.countdown-section {
    background: var(--bg-dark);
    padding: 40px 0;
    position: relative;
    overflow: hidden;
}

.countdown-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(12, 123, 147, 0.15), rgba(39, 174, 150, 0.15));
    pointer-events: none;
}

.countdown-wrapper {
    text-align: center;
    position: relative;
    z-index: 1;
}

.countdown-label {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent);
    margin-bottom: 20px;
}

.countdown {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 80px;
}

.countdown-number {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 800;
    color: var(--text-light);
    line-height: 1;
    font-variant-numeric: tabular-nums;
}

.countdown-unit {
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-top: 4px;
}

.countdown-separator {
    font-size: 2rem;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.2);
    padding-bottom: 20px;
}

.countdown-deadline {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.countdown-deadline strong {
    color: #f5c542;
}

/* ============================================
   SECTION BASE
   ============================================ */
.section {
    padding: 100px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--primary);
    background: var(--primary-light);
    padding: 6px 16px;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-line {
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 2px;
    margin: 0 auto;
}

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

.about-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-bottom: 60px;
}

.about-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 40px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
}

.about-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.about-card-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
}

.about-card--purpose .about-card-icon {
    background: linear-gradient(135deg, var(--primary-light), #d5eef3);
    color: var(--primary);
}

.about-card--scope .about-card-icon {
    background: linear-gradient(135deg, var(--accent-light), #d0f0ea);
    color: var(--accent);
}

.about-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text-dark);
}

.about-card p {
    font-size: 0.92rem;
    line-height: 1.8;
    color: var(--text-body);
    margin-bottom: 12px;
}

.about-card p:last-child {
    margin-bottom: 0;
}

.about-highlights {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.highlight-item {
    text-align: center;
    padding: 32px 16px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
}

.highlight-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.highlight-number {
    font-size: 2.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 8px;
}

.highlight-text {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-muted);
}

/* ============================================
   PROGRAM SECTION
   ============================================ */
.section-program {
    background: var(--bg-white);
}

.program-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.tab-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px 32px;
    background: var(--bg-light);
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-body);
}

.tab-btn:hover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.tab-btn.active {
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 4px 20px rgba(12, 123, 147, 0.25);
}

.tab-day {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-dark);
    transition: color var(--transition-fast);
}

.tab-btn.active .tab-day {
    color: var(--text-light);
}

.tab-date {
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-muted);
    margin-top: 2px;
    transition: color var(--transition-fast);
}

.tab-btn.active .tab-date {
    color: rgba(255, 255, 255, 0.75);
}

.tab-panel {
    display: none;
    animation: fadeIn 0.4s ease;
}

.tab-panel.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

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

.schedule-list {
    max-width: 800px;
    margin: 0 auto;
}

.schedule-item {
    display: flex;
    gap: 24px;
    padding: 20px 24px;
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    border-left: 3px solid transparent;
    margin-bottom: 4px;
}

.schedule-item:hover {
    background: var(--bg-light);
    border-left-color: var(--primary);
}

.schedule-item--case {
    border-left-color: var(--accent);
}

.schedule-item--case:hover {
    border-left-color: var(--accent);
    background: var(--accent-light);
}

.schedule-time {
    min-width: 120px;
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--primary);
    padding-top: 2px;
    white-space: nowrap;
}

.schedule-content h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 4px;
    line-height: 1.5;
}

.schedule-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent);
    background: var(--accent-light);
    padding: 2px 10px;
    border-radius: var(--radius-full);
    margin-bottom: 6px;
}

.schedule-speaker {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.schedule-speaker span {
    font-weight: 500;
}

.schedule-break {
    text-align: center;
    padding: 16px;
    margin: 8px 0;
    background: linear-gradient(90deg, transparent, var(--bg-light), transparent);
    font-size: 0.88rem;
    color: var(--text-muted);
    font-weight: 600;
}

.schedule-total {
    text-align: center;
    padding: 20px;
    margin-top: 16px;
    font-weight: 700;
    color: var(--primary);
    font-size: 0.95rem;
    border-top: 2px dashed var(--border-light);
}

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

.speakers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 20px;
}

.speaker-card {
    background: var(--bg-white);
    border-radius: var(--radius-md);
    padding: 28px 20px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
}

.speaker-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.speaker-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: var(--text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 700;
    margin: 0 auto 16px;
    letter-spacing: -0.02em;
}

.speaker-card h4 {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
    line-height: 1.4;
}

.speaker-card p {
    font-size: 0.78rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.speaker-role {
    display: inline-block;
    margin-top: 8px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #f0a830;
    background: rgba(245, 197, 66, 0.12);
    padding: 3px 10px;
    border-radius: var(--radius-full);
}

/* ============================================
   COMMITTEES SECTION
   ============================================ */
.section-committees {
    background: var(--bg-white);
}

.committees-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
}

.committee-card {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 36px;
    border: 1px solid var(--border-light);
}

.committee-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--border-light);
}

.committee-header svg {
    color: var(--primary);
}

.committee-header h3 {
    font-size: 1.15rem;
    font-weight: 700;
}

.committee-list li {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    padding: 8px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
    font-size: 0.85rem;
    gap: 12px;
}

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

.committee-list strong {
    color: var(--text-dark);
    font-weight: 600;
    flex-shrink: 0;
}

.committee-list span {
    color: var(--text-muted);
    font-size: 0.78rem;
    text-align: right;
    flex-shrink: 0;
}

/* ============================================
   APPLY SECTION
   ============================================ */
.section-apply {
    background: var(--bg-light);
}

.apply-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    align-items: start;
}

.apply-criteria h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 24px;
    color: var(--text-dark);
}

.apply-criteria h3 svg {
    color: var(--primary);
}

.criteria-list {
    list-style: none;
    counter-reset: criteria;
}

.criteria-list li {
    counter-increment: criteria;
    position: relative;
    padding: 12px 0 12px 44px;
    font-size: 0.9rem;
    line-height: 1.7;
    border-bottom: 1px solid var(--border-light);
}

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

.criteria-list li::before {
    content: counter(criteria);
    position: absolute;
    left: 0;
    top: 12px;
    width: 28px;
    height: 28px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.78rem;
    font-weight: 700;
}

.criteria-note {
    display: flex;
    gap: 12px;
    margin-top: 20px;
    padding: 16px 20px;
    background: rgba(245, 197, 66, 0.08);
    border-left: 3px solid #f5c542;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.criteria-note svg {
    flex-shrink: 0;
    color: #f0a830;
    margin-top: 2px;
}

.criteria-note p {
    font-size: 0.85rem;
    line-height: 1.7;
    color: var(--text-body);
}

.apply-card {
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    padding: 40px;
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-light);
    position: sticky;
    top: calc(var(--nav-height) + 24px);
}

.apply-card-icon {
    color: var(--primary);
    margin-bottom: 20px;
}

.apply-card h3 {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.apply-card>p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 20px;
}

.apply-deadline {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-light);
    padding: 8px 16px;
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    color: var(--text-body);
    margin-bottom: 24px;
}

.apply-deadline strong {
    color: var(--primary-dark);
}

.apply-note {
    font-size: 0.78rem !important;
    color: var(--text-muted) !important;
    margin-top: 16px !important;
    line-height: 1.6 !important;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.section-contact {
    background: var(--bg-white);
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.contact-card {
    background: var(--bg-light);
    border-radius: var(--radius-lg);
    padding: 36px;
    text-align: center;
    border: 1px solid var(--border-light);
    transition: all var(--transition-base);
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.contact-icon {
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50%;
    margin: 0 auto 20px;
}

.contact-card h4 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.contact-card ul {
    list-style: none;
}

.contact-card ul li {
    font-size: 0.9rem;
    padding: 4px 0;
    color: var(--text-body);
}

.contact-card ul a {
    color: var(--primary);
    font-weight: 500;
}

.contact-card ul a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.contact-card p {
    font-size: 0.88rem;
    line-height: 1.7;
    color: var(--text-body);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--bg-dark);
    padding: 48px 0 24px;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: start;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    gap: 40px;
    flex-wrap: wrap;
}

.footer-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-light);
    margin-bottom: 6px;
    max-width: 500px;
    line-height: 1.5;
}

.footer-sub {
    font-size: 0.82rem;
    color: var(--text-muted);
}

.footer-links {
    display: flex;
    gap: 24px;
    flex-wrap: wrap;
}

.footer-links a {
    font-size: 0.88rem;
    color: var(--text-muted);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-support strong {
    color: #f5c542;
}

/* ============================================
   BACK TO TOP
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--primary);
    color: var(--text-light);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-base);
    z-index: 100;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* ============================================
   ANIMATIONS
   ============================================ */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-animate="fade-down"] {
    transform: translateY(-30px);
}

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

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
    }

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

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

    .apply-card {
        position: static;
    }
}

@media (max-width: 768px) {
    :root {
        --nav-height: 64px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: var(--bg-white);
        flex-direction: column;
        padding: 16px;
        box-shadow: var(--shadow-lg);
        border-top: 1px solid var(--border-light);
    }

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

    .nav-menu a {
        color: var(--text-body) !important;
        padding: 12px 16px;
        width: 100%;
        text-align: center;
    }

    .nav-menu a:hover {
        background: var(--bg-light) !important;
        color: var(--primary) !important;
    }

    .nav-cta {
        margin-left: 0 !important;
        margin-top: 8px;
    }

    .hero {
        padding: 100px 20px 80px;
    }

    .hero-meta {
        gap: 10px;
    }

    .meta-item {
        font-size: 0.8rem;
        padding: 8px 14px;
    }

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

    .schedule-item {
        flex-direction: column;
        gap: 8px;
        padding: 16px;
    }

    .schedule-time {
        min-width: auto;
    }

    .speakers-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

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

    .program-tabs {
        gap: 8px;
    }

    .tab-btn {
        padding: 12px 20px;
    }

    .section {
        padding: 70px 0;
    }

    .footer-top {
        flex-direction: column;
    }

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

    .countdown-item {
        min-width: 60px;
    }
}

@media (max-width: 480px) {
    .speakers-grid {
        grid-template-columns: 1fr;
    }

    .about-highlights {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .highlight-item {
        padding: 20px 12px;
    }

    .highlight-number {
        font-size: 2.2rem;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .committee-list li {
        flex-direction: column;
        gap: 2px;
    }

    .committee-list span {
        text-align: left;
    }

    .countdown {
        gap: 6px;
    }

    .countdown-number {
        font-size: 1.8rem;
    }

    .footer-links {
        flex-direction: column;
        gap: 12px;
        align-items: center;
    }
}

/* Print */
@media print {

    .navbar,
    .hero-scroll,
    .back-to-top,
    .countdown-section {
        display: none !important;
    }

    .hero {
        min-height: auto;
        padding: 40px 20px;
    }

    .section {
        padding: 30px 0;
    }

    body {
        color: #000;
    }
}

/* ============================================
   HERO SLIDER
   ============================================ */
.hero-slider {
    position: relative;
    width: 100%;
    overflow: hidden;
}

.hero-slider-track {
    display: flex;
    transition: transform 0.6s cubic-bezier(0.25, 0.8, 0.25, 1);
    will-change: transform;
}

.hero-slide {
    min-width: 100%;
    flex-shrink: 0;
}

/* Slide 2 - Görsel */
.hero-slide-image {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0a2840 0%, #0c4f6b 40%, #0c7b93 70%, #27ae96 100%);
    min-height: 100vh;
    padding: 120px 24px 80px;
}

.hero-slide-img {
    max-width: 90%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
}

/* Slider Butonları */
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 52px;
    height: 52px;
    border-radius: 50%;
    border: none;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all var(--transition-base);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-slider:hover .slider-btn {
    opacity: 1;
}

.slider-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-50%) scale(1.08);
}

.slider-btn:active {
    transform: translateY(-50%) scale(0.95);
}

.slider-btn-prev {
    left: 24px;
}

.slider-btn-next {
    right: 24px;
}

/* Slider Noktaları */
.slider-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 10px;
    opacity: 0;
    transition: opacity var(--transition-base);
}

.hero-slider:hover .slider-dots {
    opacity: 1;
}

.slider-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.6);
    background: transparent;
    cursor: pointer;
    padding: 0;
    transition: all var(--transition-fast);
}

.slider-dot.active {
    background: #fff;
    border-color: #fff;
    transform: scale(1.15);
}

.slider-dot:hover {
    border-color: #fff;
    background: rgba(255, 255, 255, 0.5);
}

/* Slider Responsive */
@media (max-width: 768px) {
    .slider-btn {
        width: 40px;
        height: 40px;
    }

    .slider-btn-prev {
        left: 12px;
    }

    .slider-btn-next {
        right: 12px;
    }

    .slider-dots {
        bottom: 20px;
    }

    .hero-slide-img {
        max-width: 95%;
        border-radius: var(--radius-md);
    }
}

@media print {

    .hero-slider .slider-btn,
    .hero-slider .slider-dots {
        display: none !important;
    }
}