/* ==================== CSS VARIABLES ==================== */
:root {
    /* Blue Theme - FBÇ temasına uygun açık mavi tonları */
    --navy-dark: #122240;
    --navy-primary: #1A3A65;
    --navy-medium: #2B5A8F;
    --navy-light: #3D7BBF;

    /* Accent Colors - Açık mavi (FBÇ logo gradient) */
    --accent: #7DC0F0;
    --accent-light: #A8D8FF;
    --accent-hover: #5EAAE0;

    /* Neutrals */
    --white: #FFFFFF;
    --off-white: #F5F7FA;
    --gray-light: #E8ECF1;
    --gray: #9CA3AF;
    --text-dark: #1A1A2E;
    --text-muted: #6B7280;

    /* Typography */
    --font-body: 'Inter', sans-serif;
    --font-display: 'Playfair Display', serif;

    /* Spacing */
    --section-padding: 100px 0;
    --container-width: 1200px;
    --nav-height: 70px;

    /* Transitions */
    --transition: 0.3s ease;
    --transition-slow: 0.6s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-dark);
    line-height: 1.6;
    overflow-x: hidden;
    background: var(--white);
}

body.menu-open {
    overflow: hidden;
}

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

ul {
    list-style: none;
}

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

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ==================== NAVBAR ==================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0 24px;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    transition: background var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
    background: var(--navy-dark);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    z-index: 10;
}

.nav-logo-img {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
}

.logo-text-group {
    display: flex;
    align-items: baseline;
    gap: 6px;
}

.logo-text {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
}

.logo-sub {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--white);
    opacity: 0.9;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width var(--transition);
}

.nav-link:hover,
.nav-link.active {
    color: var(--white);
}

.nav-link.active::after,
.nav-link:hover::after {
    width: 100%;
}

.nav-cta {
    display: inline-block;
    padding: 10px 28px;
    background: var(--accent);
    color: var(--white);
    font-weight: 600;
    font-size: 0.9rem;
    border-radius: 50px;
    transition: all var(--transition);
}

.nav-cta:hover {
    background: var(--accent-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 15px rgba(106, 173, 224, 0.4);
}

/* Hamburger */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: all var(--transition);
    border-radius: 2px;
}

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

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

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

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: var(--navy-dark);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: right var(--transition-slow);
}

.mobile-menu.active {
    right: 0;
}

.mobile-links {
    text-align: center;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.mobile-link {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--white);
    opacity: 0.8;
    transition: opacity var(--transition);
}

.mobile-link:hover {
    opacity: 1;
}

.mobile-cta {
    color: var(--accent) !important;
    opacity: 1 !important;
}

/* ==================== HERO ==================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    background: radial-gradient(ellipse at center, #5EA3D8 0%, #3D7BBF 25%, #2B5A8F 50%, #1A3A65 75%, #122240 100%);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse at 30% 40%, rgba(106, 173, 224, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 70% 30%, rgba(144, 197, 235, 0.1) 0%, transparent 45%),
        radial-gradient(ellipse at 50% 100%, rgba(11, 21, 36, 0.6) 0%, transparent 60%);
}

.hero-logo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: contain;
    margin-bottom: 24px;
    filter: drop-shadow(0 4px 20px rgba(106, 173, 224, 0.3));
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 0 24px;
    max-width: 800px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.2;
    margin-bottom: 16px;
}

.hero-highlight {
    color: var(--accent);
}

.hero-subtitle {
    font-size: 1.2rem;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 40px;
    max-width: 550px;
    margin-left: auto;
    margin-right: auto;
}

/* Countdown */
.countdown {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 40px;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.countdown-number {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    font-variant-numeric: tabular-nums;
    min-width: 70px;
    padding: 12px 8px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.countdown-label {
    font-size: 0.75rem;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.5);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 8px;
}

.countdown-ended {
    font-size: 1.5rem;
    color: var(--accent);
    font-weight: 600;
}

/* Hero Buttons */
.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 32px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 36px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 50px;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(106, 173, 224, 0.4);
}

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

.btn-secondary:hover {
    border-color: var(--white);
    background: rgba(255, 255, 255, 0.05);
    transform: translateY(-2px);
}

.hero-date {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
    font-weight: 500;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    color: rgba(255, 255, 255, 0.4);
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
    40% { transform: translateX(-50%) translateY(-10px); }
    60% { transform: translateX(-50%) translateY(-5px); }
}

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

.section-badge {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 12px;
}

.section-title {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 650px;
    margin-bottom: 48px;
}

/* Center text for sections */
.section .container {
    text-align: center;
}

.section .section-desc {
    margin-left: auto;
    margin-right: auto;
}

/* ==================== THEME SECTION ==================== */
.section-theme {
    background: var(--navy-primary);
    padding: 80px 0;
    text-align: center;
}

.section-theme .section-badge {
    color: var(--accent-light);
}

.theme-title {
    font-family: var(--font-display);
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 16px;
    margin-top: 8px;
}

.theme-desc {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.65);
    max-width: 600px;
    margin: 0 auto;
}

/* ==================== VISION & MISSION ==================== */
.section-vm {
    background: var(--off-white);
}

.vm-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    max-width: 900px;
    margin: 0 auto;
}

.vm-card {
    background: rgba(255, 255, 255, 0.95);
    padding: 48px 36px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.8);
    transition: transform var(--transition), box-shadow var(--transition);
}

.vm-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
}

.vm-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--navy-primary), var(--navy-medium));
    border-radius: 50%;
    margin-bottom: 24px;
    color: var(--accent);
}

.vm-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--navy-primary);
    margin-bottom: 16px;
}

.vm-text {
    color: var(--text-muted);
    line-height: 1.7;
}

/* ==================== ABOUT / STATS ==================== */
.section-about {
    background: var(--white);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.stat-item {
    text-align: center;
    padding: 32px 16px;
    background: var(--navy-primary);
    border-radius: 16px;
    transition: transform var(--transition);
}

.stat-item:hover {
    transform: translateY(-4px);
}

.stat-number {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--accent);
    display: inline;
}

.stat-plus {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
}

.stat-label {
    display: block;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 4px;
    font-weight: 500;
}

/* ==================== ACTIVITIES ==================== */
.section-activities {
    background: var(--navy-dark);
}

.section-activities .section-title {
    color: var(--white);
}

.section-activities .section-desc {
    color: rgba(255, 255, 255, 0.6);
}

.section-activities .section-badge {
    color: var(--accent-light);
}

.activities-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.activity-card {
    background: var(--navy-primary);
    padding: 48px 32px;
    border-radius: 16px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    transition: transform var(--transition), box-shadow var(--transition);
    border: 1px solid rgba(255, 255, 255, 0.06);
}

.activity-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.25);
    border-color: var(--accent);
}

.activity-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, var(--navy-primary), var(--navy-medium));
    border-radius: 20px;
    margin-bottom: 24px;
    color: var(--accent);
}

.activity-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 12px;
}

.activity-desc {
    color: rgba(255, 255, 255, 0.6);
    line-height: 1.7;
}

/* ==================== WORKSHOP & ETKİNLİKLER ==================== */
.section-workshop {
    background: var(--white);
}

.workshop-box {
    background: linear-gradient(135deg, var(--navy-primary) 0%, var(--navy-medium) 100%);
    border-radius: 20px;
    padding: 48px 44px;
    text-align: left;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.workshop-content p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.8;
    font-size: 1.02rem;
    margin-bottom: 16px;
}

.workshop-content p:last-child {
    margin-bottom: 32px;
}

.workshop-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.workshop-highlight-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--accent-light);
    font-size: 0.95rem;
    font-weight: 500;
    transition: all var(--transition);
}

.workshop-highlight-item:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent);
}

.workshop-highlight-item svg {
    flex-shrink: 0;
    color: var(--accent);
}

@media (max-width: 768px) {
    .workshop-box {
        padding: 32px 24px;
    }

    .workshop-highlights {
        grid-template-columns: 1fr;
    }
}

/* ==================== COMMITTEES ==================== */
.section-committees {
    background: var(--navy-primary);
}

.section-committees .section-badge {
    color: var(--accent-light);
}

.section-committees .section-title {
    color: var(--white);
}

.section-committees .section-desc {
    color: rgba(255, 255, 255, 0.6);
}

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

.committee-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 36px 28px;
    border-radius: 16px;
    text-align: left;
    transition: all var(--transition);
    backdrop-filter: blur(10px);
}

.committee-card:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--accent);
    transform: translateY(-4px);
}

.committee-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent);
    opacity: 0.4;
    display: block;
    margin-bottom: 12px;
}

.committee-name {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 8px;
}

.committee-topic {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.6;
}

.committee-speaker {
    display: block;
    margin-top: 14px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--accent);
    line-height: 1.5;
}

/* ==================== TEAM ==================== */
.section-team {
    background: var(--navy-dark);
}

.section-team .section-title {
    color: var(--white);
}

.section-team .section-badge {
    color: var(--accent-light);
}

.team-subtitle {
    font-family: var(--font-display);
    font-size: 1.8rem;
    color: var(--white);
    margin-top: 64px;
    margin-bottom: 32px;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.team-card {
    text-align: center;
    padding: 36px 20px;
    background: var(--navy-primary);
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: transform var(--transition), box-shadow var(--transition);
}

.team-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
    border-color: var(--accent);
}

.team-photo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--navy-primary), var(--navy-medium));
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--accent);
}

.team-name {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 4px;
}

.team-role {
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 600;
    display: block;
}

.team-desc {
    font-size: 0.82rem;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.6;
    margin-top: 12px;
}


/* Subteam Cards */
.subteam-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    justify-content: center;
}

.subteam-grid .subteam-card {
    width: calc(25% - 18px);
}

.subteam-card {
    background: var(--navy-primary);
    border-radius: 16px;
    text-align: left;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.subteam-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.25);
    border-color: var(--accent);
}

.subteam-cover {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
}

.subteam-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    display: block;
}

.subteam-cover--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--navy-primary), var(--navy-medium));
    color: var(--accent);
}

.subteam-body {
    padding: 24px;
}

.subteam-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 10px;
}

.subteam-desc {
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.7;
}

/* ==================== FAQ ==================== */
.section-faq {
    background: var(--white);
}

.faq-list {
    max-width: 750px;
    margin: 0 auto;
    text-align: left;
}

.faq-item {
    border-bottom: 1px solid var(--gray-light);
}

.faq-question {
    width: 100%;
    padding: 24px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: none;
    border: none;
    cursor: pointer;
    font-family: var(--font-body);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--text-dark);
    text-align: left;
    gap: 16px;
    transition: color var(--transition);
}

.faq-question:hover {
    color: var(--navy-medium);
}

.faq-chevron {
    flex-shrink: 0;
    transition: transform var(--transition);
    color: var(--accent);
}

.faq-item.active .faq-chevron {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
    max-height: 200px;
    padding-bottom: 24px;
}

.faq-answer p {
    color: var(--text-muted);
    line-height: 1.7;
}

/* ==================== SPONSORS ==================== */
.section-sponsors {
    background: var(--off-white);
}

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

.sponsors-grid--3 {
    grid-template-columns: repeat(3, 1fr);
}

.sponsor-item {
    background: var(--white);
    border-radius: 12px;
    padding: 40px 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--gray-light);
    transition: all var(--transition);
}

.sponsor-item:hover {
    border-color: var(--accent);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

.sponsor-placeholder {
    color: var(--gray);
    font-size: 0.9rem;
    font-weight: 500;
}

.sponsor-logo {
    max-width: 85%;
    max-height: 120px;
    object-fit: contain;
}

.sponsor-logo--white-bg {
    background: var(--white);
    border-radius: 8px;
    padding: 8px 16px;
}

/* ==================== EVENT INFO ==================== */
.section-eventinfo {
    background: var(--navy-dark);
}

.section-eventinfo .section-title {
    color: var(--white);
}

.section-eventinfo .section-badge {
    color: var(--accent-light);
}

.eventinfo-content {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.eventinfo-program {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.2);
}

.eventinfo-img {
    width: 100%;
    display: block;
    border-radius: 16px;
}

.eventinfo-map {
    position: relative;
    height: 350px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 25px rgba(0, 0, 0, 0.2);
}

.eventinfo-map iframe {
    display: block;
}

.eventinfo-map-link {
    position: absolute;
    bottom: 16px;
    right: 16px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--accent);
    color: var(--white);
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 50px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
    transition: all var(--transition);
}

.eventinfo-map-link:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .eventinfo-map {
        height: 250px;
    }
}

/* ==================== PAST ==================== */
.section-past {
    background: var(--off-white);
}

.past-year {
    font-family: var(--font-display);
    font-size: 3rem;
    font-weight: 700;
    color: var(--navy-primary);
    margin-bottom: 24px;
}

.past-gallery {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    max-width: 960px;
    margin: 0 auto;
}

.past-photo {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    aspect-ratio: 16 / 10;
    transition: transform var(--transition), box-shadow var(--transition);
}

.past-photo:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

.past-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    image-rendering: -webkit-optimize-contrast;
    filter: contrast(1.02) saturate(1.05);
}

.past-gallery--4 {
    grid-template-columns: repeat(4, 1fr);
}

@media (max-width: 1024px) {
    .past-gallery--4 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .past-gallery,
    .past-gallery--4 {
        grid-template-columns: 1fr;
    }

    .past-year {
        font-size: 2.2rem;
    }
}

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

.contact-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.contact-item {
    text-align: center;
    padding: 40px 24px;
    background: var(--off-white);
    border-radius: 16px;
    transition: transform var(--transition);
}

.contact-item:hover {
    transform: translateY(-4px);
}

.contact-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background: var(--navy-primary);
    border-radius: 50%;
    color: var(--accent);
    margin-bottom: 20px;
}

.contact-item h4 {
    font-size: 1rem;
    font-weight: 700;
    color: var(--navy-primary);
    margin-bottom: 8px;
}

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

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

.contact-link-wrap {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-decoration: none;
    color: inherit;
}

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

.contact-link-wrap:hover .contact-icon {
    background: var(--accent);
    color: var(--white);
}

.contact-map {
    margin-top: 48px;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
}

.contact-map iframe {
    display: block;
}

/* ==================== FOOTER ==================== */
.footer {
    background: var(--navy-dark);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}

.footer-logo-img {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
}

.footer-desc {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    line-height: 1.7;
    max-width: 300px;
}

.footer-links h4,
.footer-contact h4,
.footer-social h4 {
    color: var(--white);
    font-size: 0.95rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    transition: color var(--transition);
}

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

.footer-contact ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
}

.footer-contact svg {
    flex-shrink: 0;
    color: var(--accent);
}

.social-links {
    display: flex;
    gap: 12px;
}

.social-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.06);
    color: rgba(255, 255, 255, 0.6);
    transition: all var(--transition);
}

.social-links a:hover {
    background: var(--accent);
    color: var(--white);
    transform: translateY(-2px);
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.3);
    font-size: 0.85rem;
}

/* ==================== SCROLL REVEAL ==================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger delay for grid items */
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }
.reveal:nth-child(5) { transition-delay: 0.4s; }
.reveal:nth-child(6) { transition-delay: 0.5s; }

/* ==================== RESPONSIVE ==================== */

/* Tablet */
@media (max-width: 1024px) {
    .nav-links {
        display: none;
    }

    .nav-cta {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .hero-title {
        font-size: 2.8rem;
    }

    .theme-title {
        font-size: 2.2rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .vm-grid {
        gap: 24px;
    }

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

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

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

    .subteam-grid .subteam-card {
        width: calc(33.333% - 16px);
    }

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

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

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

/* Mobile */
@media (max-width: 768px) {
    :root {
        --section-padding: 70px 0;
        --nav-height: 60px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 32px;
    }

    .countdown {
        gap: 12px;
    }

    .countdown-number {
        font-size: 2rem;
        min-width: 55px;
        padding: 10px 6px;
    }

    .countdown-label {
        font-size: 0.65rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 12px;
    }

    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    .theme-title {
        font-size: 1.8rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

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

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

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

    .team-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .subteam-grid .subteam-card {
        width: 100%;
    }

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

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

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .footer-desc {
        max-width: 100%;
    }

    .footer-brand .footer-logo {
        justify-content: center;
    }

    .social-links {
        justify-content: center;
    }

    .footer-contact li {
        justify-content: center;
    }
}

/* Small Mobile */
@media (max-width: 400px) {
    .hero-title {
        font-size: 1.8rem;
    }

    .countdown-number {
        font-size: 1.6rem;
        min-width: 48px;
    }

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

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

    .reveal {
        opacity: 1;
        transform: none;
    }

    html {
        scroll-behavior: auto;
    }
}