/* ========================================================
   İSTİNYE DYNAMIC QUANTUM KULÜBÜ - KURUMSAL VE KREATİF STİL
   ======================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --bg-dark: #080c16;
    --bg-card: rgba(15, 23, 42, 0.72);
    --bg-card-hover: rgba(26, 38, 64, 0.88);
    --bg-glass: rgba(15, 23, 42, 0.65);
    
    /* Modern Prestijli Teknoloji Mavisi & İndigo */
    --primary: #3b82f6;
    --primary-light: #60a5fa;
    --primary-dark: #2563eb;
    --primary-glow: rgba(59, 130, 246, 0.28);
    
    --secondary: #6366f1;
    --secondary-light: #818cf8;
    --secondary-glow: rgba(99, 102, 241, 0.25);
    
    /* İstinye Üniversitesi Kurumsal Renkleri */
    --isu-red: #c8102e;
    --isu-bordeaux: #7f0019;
    --isu-red-light: #ef4444;
    --isu-red-glow: rgba(200, 16, 46, 0.25);
    
    --accent-cyan: #0ea5e9;
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --border-color: rgba(255, 255, 255, 0.08);
    --border-active: rgba(59, 130, 246, 0.35);
    --border-hover: rgba(96, 165, 250, 0.32);
    
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    
    --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    --transition-bounce: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

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

/* 120 FPS GPU Compositor Acceleration */
.navbar,
.nav-menu,
.nav-overlay,
.ticker-track,
.quantum-field-canvas,
.deck-console-card,
.team-card,
.project-card,
.event-card,
.join-banner-card,
.join-form-card {
    transform: translateZ(0);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
}

.ticker-track {
    will-change: transform;
}

/* ========================================================
   GLOBAL LIVING BACKGROUND (Zarif, Sakin Atmosfer)
   ======================================================== */
.quantum-field-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 0;
    opacity: 0.85;
}

.quantum-ambient-mesh {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 0;
    background-image: 
        radial-gradient(rgba(59, 130, 246, 0.08) 1px, transparent 1px);
    background-size: 38px 38px;
    background-position: center center;
    mask-image: radial-gradient(ellipse at 50% 50%, rgba(0,0,0,0.9) 0%, transparent 80%);
    -webkit-mask-image: radial-gradient(ellipse at 50% 50%, rgba(0,0,0,0.9) 0%, transparent 80%);
}

.quantum-ambient-orbs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.ambient-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.28;
    will-change: transform;
    transform: translate3d(0, 0, 0);
    animation: orbFloat 24s infinite alternate ease-in-out;
}

.ambient-orb.orb-1 {
    width: 580px;
    height: 580px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.45) 0%, rgba(37, 99, 235, 0) 70%);
    top: -120px;
    left: -120px;
    animation-duration: 26s;
}

.ambient-orb.orb-2 {
    width: 620px;
    height: 620px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.4) 0%, rgba(99, 102, 241, 0) 70%);
    top: 30%;
    right: -160px;
    animation-duration: 30s;
    animation-delay: -8s;
}

.ambient-orb.orb-3 {
    width: 480px;
    height: 480px;
    background: radial-gradient(circle, rgba(200, 16, 46, 0.25) 0%, rgba(200, 16, 46, 0) 70%);
    bottom: -100px;
    left: 20%;
    animation-duration: 34s;
    animation-delay: -15s;
}

@keyframes orbFloat {
    0% { transform: translate3d(0, 0, 0) scale(1); }
    50% { transform: translate3d(50px, 40px, 0) scale(1.08); }
    100% { transform: translate3d(-35px, 60px, 0) scale(0.95); }
}

/* Scroll Reveal Utility */
.reveal-item {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.75s cubic-bezier(0.16, 1, 0.3, 1), transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
    will-change: opacity, transform;
}

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

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: #070a13;
}
::-webkit-scrollbar-thumb {
    background: #1e293b;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* Container */
.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* ----------------------------------------------------
   1. ANNOUNCEMENT BAR (Duyuru Bandı)
   ---------------------------------------------------- */
.announcement-bar {
    background: linear-gradient(90deg, #c8102e, #1e3a8a, #2563eb);
    color: #ffffff;
    font-size: 0.88rem;
    font-weight: 600;
    padding: 0.65rem 1rem;
    text-align: center;
    position: relative;
    z-index: 1001;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    box-shadow: 0 2px 15px rgba(37, 99, 235, 0.2);
}

.announcement-bar a {
    color: #ffffff;
    text-decoration: underline;
    font-weight: 700;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.announcement-bar a:hover {
    color: #fff;
    opacity: 0.9;
    transform: translateX(3px);
}

.announcement-close {
    background: none;
    border: none;
    color: #ffffff;
    cursor: pointer;
    font-size: 1.1rem;
    margin-left: 1rem;
    opacity: 0.8;
    transition: var(--transition);
}
.announcement-close:hover {
    opacity: 1;
}

/* ----------------------------------------------------
   1.5. SITE TOP BAR (Üst Sosyal Medya & İletişim Bandı)
   ---------------------------------------------------- */
.site-topbar {
    background: #050811;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0.5rem 0;
    font-size: 0.83rem;
    position: relative;
    z-index: 999;
}

.topbar-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.topbar-left {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.topbar-contact-item {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.topbar-contact-item svg {
    color: var(--primary);
}

.topbar-contact-item:hover {
    color: var(--primary);
}

.topbar-divider {
    color: rgba(255, 255, 255, 0.18);
    font-size: 0.8rem;
}

.topbar-tagline {
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.02em;
}

.topbar-right {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.topbar-socials-label {
    color: var(--text-muted);
    font-size: 0.76rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.topbar-socials {
    display: flex;
    align-items: center;
    gap: 0.45rem;
}

.topbar-social-btn {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
}

.topbar-social-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: rgba(0, 240, 255, 0.14);
    transform: translateY(-2px);
    box-shadow: 0 0 10px var(--primary-glow);
}

/* ----------------------------------------------------
   2. NAVBAR
   ---------------------------------------------------- */
.navbar {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    background: rgba(7, 10, 19, 0.82);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-color);
    transition: var(--transition);
}

.navbar.scrolled {
    padding: 0.75rem 0;
    background: rgba(7, 10, 19, 0.95);
    border-bottom-color: rgba(0, 240, 255, 0.15);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.nav-wrapper {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
}

.brand-link {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    text-decoration: none;
    color: var(--text-primary);
}

.brand-logo-img {
    height: 48px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 0 12px var(--primary-glow));
}

.brand-text {
    display: flex;
    flex-direction: column;
}

.brand-name {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    letter-spacing: -0.01em;
    background: linear-gradient(135deg, #ffffff 40%, var(--primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    white-space: nowrap;
}

.brand-sub {
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-secondary);
}

/* Nav Menu */
.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.75rem;
    list-style: none;
}

.nav-item a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 0.4rem 0;
    transition: var(--transition);
}

.nav-item a:hover,
.nav-item a.active {
    color: var(--text-primary);
}

.nav-item a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    transition: var(--transition);
    border-radius: 2px;
}

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

/* Nav Actions */
.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.header-social-btn {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
}

.header-social-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    background: rgba(0, 240, 255, 0.12);
    transform: translateY(-2px);
    box-shadow: 0 0 10px var(--primary-glow);
}

.mobile-nav-socials-item {
    display: none;
}

/* Special Dynamic Volleyball Button in Header */
.btn-volleyball-header {
    display: inline-flex;
    align-items: center;
    gap: 0.55rem;
    background: linear-gradient(135deg, rgba(200, 16, 46, 0.22), rgba(59, 130, 246, 0.22));
    border: 1px solid rgba(200, 16, 46, 0.45);
    color: #ffffff;
    font-size: 0.88rem;
    font-weight: 700;
    padding: 0.55rem 1.15rem;
    border-radius: var(--radius-full);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
    box-shadow: 0 0 15px rgba(200, 16, 46, 0.2);
    overflow: hidden;
}

.btn-volleyball-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.25), transparent);
    transition: 0.5s;
}

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

.btn-volleyball-header:hover {
    transform: translateY(-2px);
    border-color: rgba(239, 68, 68, 0.7);
    box-shadow: 0 4px 20px rgba(200, 16, 46, 0.4);
    background: linear-gradient(135deg, rgba(200, 16, 46, 0.35), rgba(59, 130, 246, 0.35));
}

.btn-volleyball-pulse {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #22c55e;
    box-shadow: 0 0 8px #22c55e;
    animation: pulse-dot 1.8s infinite;
}

@keyframes pulse-dot {
    0% { transform: scale(0.9); opacity: 0.7; }
    50% { transform: scale(1.3); opacity: 1; }
    100% { transform: scale(0.9); opacity: 0.7; }
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    color: #ffffff;
    font-weight: 600;
    font-size: 0.94rem;
    padding: 0.72rem 1.45rem;
    border-radius: var(--radius-full);
    text-decoration: none;
    border: 1px solid rgba(255, 255, 255, 0.15);
    cursor: pointer;
    transition: var(--transition);
    box-shadow: 0 4px 18px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(37, 99, 235, 0.5);
    background: linear-gradient(135deg, #1d4ed8, #2563eb);
}

.btn-outline {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.94rem;
    padding: 0.72rem 1.45rem;
    border-radius: var(--radius-full);
    text-decoration: none;
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.btn-outline:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.22);
    transform: translateY(-2px);
}

/* Mobile Toggle */
.mobile-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.4rem;
}

/* ----------------------------------------------------
   3. HERO SECTION (Prestijli Üniversite Kulüp Vitrini)
   ---------------------------------------------------- */
.hero {
    position: relative;
    padding: 6.5rem 0 4.5rem;
    overflow: hidden;
    min-height: 84vh;
    display: flex;
    align-items: center;
    z-index: 2;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3.25rem;
    align-items: center;
    position: relative;
    z-index: 2;
    width: 100%;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.65rem;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.28);
    color: var(--primary-light);
    padding: 0.45rem 1.15rem;
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    margin-bottom: 1.5rem;
    box-shadow: 0 2px 14px rgba(59, 130, 246, 0.15);
    backdrop-filter: blur(10px);
}

.live-dot-pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #22c55e;
    box-shadow: 0 0 10px #22c55e;
    animation: pulse-dot 1.6s infinite;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: clamp(2.4rem, 4.6vw, 3.8rem);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    margin-bottom: 1.4rem;
}

.hero-title .gradient-text {
    background: linear-gradient(135deg, #ffffff 15%, #93c5fd 60%, #60a5fa 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 2px 20px rgba(59, 130, 246, 0.2));
}

.hero-desc {
    font-size: clamp(1rem, 1.5vw, 1.12rem);
    color: var(--text-secondary);
    line-height: 1.75;
    margin-bottom: 2.25rem;
    max-width: 620px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1rem;
    margin-bottom: 3.25rem;
}

/* ====================================================
   YENİ VİZYON: MÜHENDİSLİK & İNOVASYON KONSOLU
   (Executive Engineering Deck / Mission Console)
   ==================================================== */
.hero-deck-wrapper {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 100%;
    max-width: 620px;
    margin: 0 auto;
    user-select: none;
}

.deck-ambient-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 560px;
    height: 560px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.26) 0%, rgba(99, 102, 241, 0.16) 40%, rgba(200, 16, 46, 0.07) 70%, transparent 80%);
    filter: blur(70px);
    pointer-events: none;
    z-index: 1;
    border-radius: 50%;
}

.deck-console-card {
    position: relative;
    z-index: 2;
    width: 100%;
    background: linear-gradient(155deg, rgba(15, 23, 42, 0.92) 0%, rgba(9, 14, 28, 0.96) 100%);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-top: 1px solid rgba(96, 165, 250, 0.55);
    border-radius: 26px;
    padding: 2.1rem;
    backdrop-filter: blur(28px);
    -webkit-backdrop-filter: blur(28px);
    box-shadow: 0 35px 70px -12px rgba(0, 0, 0, 0.75), 0 0 55px rgba(59, 130, 246, 0.2);
    display: flex;
    flex-direction: column;
    gap: 1.35rem;
    animation: floatConsole 7s ease-in-out infinite alternate;
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.deck-console-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 42px 80px -12px rgba(0, 0, 0, 0.85), 0 0 65px rgba(59, 130, 246, 0.28);
    border-color: rgba(96, 165, 250, 0.55);
}

/* Konsol Üst Barı */
.deck-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1.05rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.deck-status {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-size: 0.82rem;
    font-weight: 700;
    color: #94a3b8;
    letter-spacing: 0.14em;
}

.deck-status .live-dot-pulse {
    width: 10px;
    height: 10px;
}

.deck-year-badge {
    font-family: var(--font-heading);
    font-size: 0.78rem;
    font-weight: 800;
    color: var(--primary-light);
    background: rgba(59, 130, 246, 0.12);
    border: 1px solid rgba(59, 130, 246, 0.3);
    padding: 0.32rem 0.85rem;
    border-radius: 999px;
    letter-spacing: 0.08em;
}

/* Kulüp Kimlik Şeridi */
.deck-brand-row {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 1.15rem 1.35rem;
    border-radius: 16px;
}

.deck-logo-box {
    width: 58px;
    height: 58px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(10, 15, 30, 0.94);
    border: 1px solid rgba(59, 130, 246, 0.42);
    border-radius: 14px;
    box-shadow: 0 0 22px rgba(59, 130, 246, 0.25);
}

.deck-logo-box img {
    width: 38px;
    height: auto;
    filter: drop-shadow(0 2px 12px rgba(59, 130, 246, 0.55));
}

.deck-brand-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
    text-align: left;
}

.deck-club-title {
    font-family: var(--font-heading);
    font-size: 1.02rem;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: 0.08em;
    line-height: 1.2;
}

.deck-club-sub {
    font-size: 0.82rem;
    color: #94a3b8;
    font-weight: 500;
}

/* Modül Temel */
.deck-module {
    background: rgba(255, 255, 255, 0.028);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: 16px;
    padding: 1.2rem 1.35rem;
    transition: var(--transition);
}

.deck-module:hover {
    border-color: rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.05);
}

/* Modül 1: TEKNOFEST Başarıları */
.module-award .module-head {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    margin-bottom: 0.85rem;
    text-align: left;
}

.module-award .module-icon {
    font-size: 1.65rem;
    line-height: 1;
}

.module-award .module-head strong {
    display: block;
    font-size: 1.02rem;
    font-weight: 700;
    color: #ffffff;
    line-height: 1.2;
}

.module-award .module-head span {
    font-size: 0.8rem;
    color: #94a3b8;
}

.module-badges-wrap {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}

.module-tag {
    font-size: 0.8rem;
    font-weight: 700;
    padding: 0.42rem 0.85rem;
    border-radius: 8px;
    letter-spacing: 0.02em;
    line-height: 1.2;
}

.tag-gold {
    background: rgba(245, 158, 11, 0.12);
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.tag-cyan {
    background: rgba(6, 182, 212, 0.12);
    color: #38bdf8;
    border: 1px solid rgba(6, 182, 212, 0.3);
}

.tag-purple {
    background: rgba(168, 85, 247, 0.12);
    color: #c084fc;
    border: 1px solid rgba(168, 85, 247, 0.3);
}

/* Modül 2: AR-GE Takımları */
.module-subhead {
    font-family: var(--font-heading);
    font-size: 0.8rem;
    font-weight: 800;
    color: #94a3b8;
    letter-spacing: 0.1em;
    margin-bottom: 0.85rem;
    text-align: left;
}

.deck-team-pills {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
}

.team-mini-pill {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.4rem;
    background: rgba(15, 23, 42, 0.65);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0.95rem 0.85rem;
    border-radius: 12px;
    transition: var(--transition);
    text-align: left;
}

.team-mini-pill:hover {
    transform: translateY(-2px);
    border-color: rgba(96, 165, 250, 0.4);
    background: rgba(30, 41, 59, 0.75);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.45);
}

.team-mini-pill .pill-icon {
    font-size: 1.5rem;
    line-height: 1;
}

.team-mini-pill strong {
    font-size: 0.92rem;
    font-weight: 800;
    color: #ffffff;
    line-height: 1.15;
}

.team-mini-pill small {
    font-size: 0.74rem;
    color: #94a3b8;
    font-weight: 500;
    white-space: nowrap;
}

/* Modül 3: Etkinlik & Zirve */
.module-event-row .event-row-left {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-align: left;
}

.module-event-row .event-row-icon {
    font-size: 1.6rem;
    line-height: 1;
}

.module-event-row strong {
    display: block;
    font-size: 0.94rem;
    font-weight: 700;
    color: #ffffff;
    line-height: 1.25;
}

.module-event-row span {
    display: block;
    font-size: 0.8rem;
    color: #94a3b8;
    margin-top: 3px;
    line-height: 1.4;
}

/* Konsol Alt Mottosu */
.deck-motto-strip {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.85rem 1.25rem;
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.12) 0%, rgba(200, 16, 46, 0.12) 100%);
    border: 1px dashed rgba(255, 255, 255, 0.16);
    border-radius: 12px;
    font-style: italic;
    font-size: 0.94rem;
    font-weight: 600;
    color: #e2e8f0;
    letter-spacing: 0.03em;
}

.motto-spark {
    font-style: normal;
    color: #fbbf24;
    animation: sparkPulse 2s infinite ease-in-out;
}

@keyframes floatConsole {
    0% { transform: translateY(0); }
    100% { transform: translateY(-7px); }
}

@keyframes pulseGreen {
    0% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.6); }
    70% { box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
    100% { box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

@keyframes sparkPulse {
    0%, 100% { transform: scale(1); filter: brightness(1); }
    50% { transform: scale(1.22); filter: brightness(1.35); }
}

/* Live Stats */
.hero-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
}

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

.stat-num {
    font-family: var(--font-heading);
    font-size: 2.3rem;
    font-weight: 800;
    color: #ffffff;
    line-height: 1;
    margin-bottom: 0.35rem;
    background: linear-gradient(135deg, #ffffff, var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.stat-label {
    font-size: 0.82rem;
    color: var(--text-secondary);
    font-weight: 500;
}

/* ----------------------------------------------------
   3.5. CANLI KULÜP HABER AKIŞI (Ticker)
   ---------------------------------------------------- */
.club-live-ticker {
    background: rgba(10, 14, 26, 0.94);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    padding: 0.85rem 0;
    overflow: hidden;
    position: relative;
    z-index: 3;
    white-space: nowrap;
    backdrop-filter: blur(12px);
}

.ticker-track {
    display: inline-flex;
    gap: 3.5rem;
    animation: tickerScroll 42s linear infinite;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.ticker-track .highlight {
    color: #ffffff;
    font-weight: 700;
}

@keyframes tickerScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

/* ----------------------------------------------------
   4. VOLLEYBALL SPOTLIGHT HERO BANNER (When Enabled)
   ---------------------------------------------------- */
.volleyball-banner-section {
    position: relative;
    z-index: 2;
    margin: -1rem 0 4rem;
}

.volleyball-promo-card {
    background: linear-gradient(135deg, rgba(200, 16, 46, 0.22), rgba(15, 23, 42, 0.9) 50%, rgba(59, 130, 246, 0.18));
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    padding: 1.75rem 2.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.45), 0 0 25px rgba(200, 16, 46, 0.12);
    position: relative;
    overflow: hidden;
}

.volleyball-promo-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.14), transparent 70%);
    border-radius: 50%;
}

.promo-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.promo-icon-box {
    width: 64px;
    height: 64px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--isu-red), var(--isu-bordeaux));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 6px 20px var(--isu-red-glow);
    flex-shrink: 0;
}

.promo-info h3 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 0.25rem;
}

.promo-info p {
    font-size: 0.92rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

.promo-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: #ffffff;
    color: #070a13;
    font-weight: 800;
    font-size: 0.95rem;
    padding: 0.8rem 1.6rem;
    border-radius: var(--radius-full);
    text-decoration: none;
    white-space: nowrap;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
}

.promo-btn:hover {
    background: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 6px 22px var(--primary-glow);
}

/* ----------------------------------------------------
   5. SECTION BASICS
   ---------------------------------------------------- */
.section {
    padding: 6rem 0;
    position: relative;
    z-index: 2;
}

.section-header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 3.5rem;
}

.section-subtitle {
    display: inline-block;
    color: var(--primary);
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    margin-bottom: 0.75rem;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2rem, 3.5vw, 2.8rem);
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.section-desc {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.6;
}

/* ----------------------------------------------------
   6. ABOUT SECTION (Hakkımızda & Vizyon)
   ---------------------------------------------------- */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3.5rem;
    align-items: center;
}

.about-text h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1.25rem;
    color: #ffffff;
}

.about-text p {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 1.25rem;
    line-height: 1.7;
}

.pillars-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
    margin-top: 2rem;
}

.pillar-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    transition: var(--transition);
}

.pillar-card:hover {
    border-color: var(--border-active);
    transform: translateY(-3px);
    background: var(--bg-card-hover);
}

.pillar-icon {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    display: inline-block;
}

.pillar-title {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.25rem;
}

.pillar-desc {
    font-size: 0.82rem;
    color: var(--text-muted);
    line-height: 1.4;
}

/* About Visual Card */
.about-visual {
    position: relative;
}

.about-card-quantum {
    background: linear-gradient(145deg, rgba(15, 23, 42, 0.9), rgba(13, 20, 36, 0.95));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    position: relative;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 30px rgba(59, 130, 246, 0.08);
}

.about-card-quantum::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    padding: 1.5px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.4), transparent 60%, rgba(99, 102, 241, 0.3));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.about-card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.75rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.about-card-title {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--primary-light);
}

.badge-official {
    background: rgba(200, 16, 46, 0.18);
    border: 1px solid var(--isu-red);
    color: #ffffff;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-full);
}

.about-bullet-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.15rem;
}

.about-bullet-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.85rem;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.bullet-check {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.15);
    color: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    flex-shrink: 0;
    margin-top: 2px;
}

/* ----------------------------------------------------
   7. COMMITTEES & TEAMS (Komiteler & Ekipler)
   ---------------------------------------------------- */
.teams-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
}

.team-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

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

.team-card:hover {
    transform: translateY(-6px);
    background: var(--bg-card-hover);
    border-color: rgba(96, 165, 250, 0.35);
    box-shadow: 0 16px 36px -10px rgba(0, 0, 0, 0.5), 0 0 20px rgba(59, 130, 246, 0.12);
}

.team-card:hover::after {
    opacity: 1;
}

/* Wide Featured Unit/Team Card (Etkinlik Ekibi) */
.team-card-wide {
    background: linear-gradient(135deg, rgba(26, 23, 58, 0.6) 0%, rgba(15, 23, 42, 0.75) 100%);
    border: 1px solid rgba(99, 102, 241, 0.35);
    border-radius: var(--radius-lg);
    padding: 2.25rem 2.5rem;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.team-card-wide::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, #6366f1, #a855f7, #3b82f6);
    opacity: 0.85;
}

.team-card-wide:hover {
    transform: translateY(-4px);
    background: linear-gradient(135deg, rgba(33, 29, 74, 0.7) 0%, rgba(15, 23, 42, 0.85) 100%);
    border-color: rgba(129, 140, 248, 0.55);
    box-shadow: 0 18px 40px -10px rgba(0, 0, 0, 0.6), 0 0 25px rgba(99, 102, 241, 0.15);
}

.team-wide-inner {
    display: flex;
    align-items: flex-start;
    gap: 1.75rem;
}

.team-wide-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: rgba(99, 102, 241, 0.15) !important;
    border: 1px solid rgba(99, 102, 241, 0.3) !important;
    color: #a5b4fc !important;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.85rem;
    flex-shrink: 0;
    margin-bottom: 0;
}

.team-wide-body {
    flex: 1;
}

.team-wide-badge {
    font-size: 0.75rem;
    font-weight: 700;
    color: #a5b4fc;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.35rem;
    display: inline-block;
}

@media (max-width: 768px) {
    .team-card-wide {
        padding: 1.75rem;
    }
    .team-wide-inner {
        flex-direction: column;
        gap: 1.25rem;
    }
}


.team-icon {
    width: 52px;
    height: 52px;
    border-radius: 14px;
    background: rgba(59, 130, 246, 0.1);
    border: 1px solid rgba(59, 130, 246, 0.22);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.55rem;
    margin-bottom: 1.25rem;
    color: var(--primary-light);
    transition: var(--transition);
}

.team-card:hover .team-icon {
    transform: scale(1.08);
    background: rgba(59, 130, 246, 0.18);
    box-shadow: 0 0 15px rgba(59, 130, 246, 0.25);
}

.team-title {
    font-family: var(--font-heading);
    font-size: 1.22rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.65rem;
}

.team-desc {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.6;
    margin-bottom: 1.25rem;
    flex-grow: 1;
}

.team-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.team-tag {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    color: var(--text-muted);
    font-size: 0.72rem;
    font-weight: 600;
    padding: 0.25rem 0.55rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.team-card:hover .team-tag {
    color: var(--primary-light);
    border-color: rgba(96, 165, 250, 0.25);
}

/* ----------------------------------------------------
   8. PROJECTS & ACHIEVEMENTS (Projeler & TEKNOFEST)
   ---------------------------------------------------- */
.project-filters {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 2.75rem;
}

.filter-chip {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-secondary);
    font-size: 0.88rem;
    font-weight: 600;
    padding: 0.55rem 1.25rem;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: var(--transition);
    user-select: none;
    font-family: var(--font-heading);
}

.filter-chip:hover {
    color: #ffffff;
    border-color: rgba(96, 165, 250, 0.35);
    background: rgba(59, 130, 246, 0.1);
}

.filter-chip.active {
    color: #ffffff;
    background: linear-gradient(135deg, #2563eb, #3b82f6);
    border-color: #3b82f6;
    box-shadow: 0 4px 16px rgba(37, 99, 235, 0.35);
}

/* Sadeleştirilmiş Kart Temelleri */
.tilt-card {
    transition: var(--transition);
}

.cyber-hud-brackets {
    position: relative;
}

.cyber-hud-brackets::before,
.cyber-hud-brackets::after {
    display: none;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.25rem;
    position: relative;
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.35s ease, background 0.35s ease;
}

.project-card:hover {
    transform: translateY(-6px);
    background: var(--bg-card-hover);
    border-color: rgba(96, 165, 250, 0.35);
    box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.6), 0 0 25px rgba(59, 130, 246, 0.12);
}

.project-badge-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.project-status {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 0.3rem 0.75rem;
    border-radius: var(--radius-full);
}

.status-award {
    background: rgba(234, 179, 8, 0.15);
    color: #eab308;
    border: 1px solid rgba(234, 179, 8, 0.3);
}

.status-active {
    background: rgba(34, 197, 94, 0.15);
    color: #22c55e;
    border: 1px solid rgba(34, 197, 94, 0.3);
}

.project-year {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
}

.project-title {
    font-family: var(--font-heading);
    font-size: 1.45rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 0.75rem;
}

.project-desc {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.blog-post-card {
    display: flex;
    flex-direction: column;
}

.blog-detail-article {
    padding: 2.5rem 2.75rem;
}

.blog-post-card .project-title a:hover {
    color: var(--primary-light) !important;
}

.tech-badge {
    background: rgba(59, 130, 246, 0.1);
    color: #93c5fd;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-sm);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

/* ----------------------------------------------------
   9. EVENTS & WORKSHOPS (Etkinlikler)
   ---------------------------------------------------- */
.events-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.75rem;
}

.event-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.75rem;
    transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.35s ease, background 0.35s ease;
}

.event-card:hover {
    border-color: rgba(96, 165, 250, 0.35);
    transform: translateY(-5px);
    background: var(--bg-card-hover);
    box-shadow: 0 16px 36px -10px rgba(0, 0, 0, 0.5), 0 0 20px rgba(59, 130, 246, 0.12);
}

.event-tag-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.25rem 0.65rem;
    border-radius: var(--radius-sm);
    background: rgba(59, 130, 246, 0.12);
    color: var(--primary-light);
    border: 1px solid rgba(59, 130, 246, 0.25);
    margin-bottom: 1rem;
}

.event-title {
    font-family: var(--font-heading);
    font-size: 1.2rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 0.65rem;
}

.event-desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1.25rem;
}

.event-footer {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.82rem;
    font-weight: 500;
    border-top: 1px solid var(--border-color);
    padding-top: 0.85rem;
}

/* ----------------------------------------------------
   10. JOIN & CONTACT SECTION (Kulübe Katıl / İletişim)
   ---------------------------------------------------- */
.join-section {
    background: linear-gradient(180deg, transparent, rgba(13, 20, 36, 0.6) 30%, transparent);
}

.join-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 3.5rem;
    align-items: flex-start;
}

.join-info h3 {
    font-family: var(--font-heading);
    font-size: 2.1rem;
    font-weight: 800;
    color: #ffffff;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.join-info p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.contact-channels {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.channel-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.channel-item:hover {
    color: var(--primary);
    transform: translateX(4px);
}

.channel-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-channel-card {
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.75rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    text-decoration: none;
    transition: all 0.25s ease;
}

.contact-channel-card:hover {
    border-color: rgba(59, 130, 246, 0.45);
    background: rgba(15, 23, 42, 0.9);
    transform: translateY(-3px);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
}

.contact-channel-card .channel-action-link {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-size: 0.85rem;
    font-weight: 500;
}

.contact-channel-card .channel-action-arrow {
    display: inline-block;
    transition: transform 0.2s ease;
}

.contact-channel-card:hover .channel-action-arrow {
    transform: translateX(4px);
}


/* Join CTA Banner in Index */
.join-banner-card {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(10, 14, 26, 0.95));
    border: 1px solid rgba(59, 130, 246, 0.3);
    border-radius: 24px;
    padding: 4rem 3rem;
    text-align: center;
    position: relative;
    overflow: hidden;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.5);
}

/* Form Container */
.join-form-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.6);
    position: relative;
}

.join-form-card::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    padding: 1px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.35), transparent 70%);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.form-group-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.45rem;
}

.form-control {
    width: 100%;
    background: rgba(10, 14, 26, 0.75);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-size: 0.95rem;
    font-family: var(--font-body);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-light);
    box-shadow: 0 0 16px rgba(59, 130, 246, 0.25);
    background: rgba(10, 14, 26, 0.95);
}

.form-control::placeholder {
    color: var(--text-muted);
}

select.form-control {
    cursor: pointer;
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.form-feedback {
    display: none;
    padding: 0.85rem 1rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.25rem;
    font-size: 0.9rem;
    font-weight: 600;
}

.form-feedback.success {
    display: block;
    background: rgba(34, 197, 94, 0.15);
    border: 1px solid rgba(34, 197, 94, 0.35);
    color: #4ade80;
}

.form-feedback.error {
    display: block;
    background: rgba(239, 68, 68, 0.15);
    border: 1px solid rgba(239, 68, 68, 0.35);
    color: #f87171;
}

/* Gelişmiş Başvuru Formu Bileşenleri */
.form-options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 0.65rem;
    margin-top: 0.35rem;
}

.custom-option-chip {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 0.85rem;
    background: rgba(10, 14, 26, 0.65);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-size: 0.86rem;
    color: var(--text-secondary);
    transition: var(--transition);
    user-select: none;
}

.custom-option-chip input[type="radio"],
.custom-option-chip input[type="checkbox"] {
    accent-color: var(--primary);
    width: 16px;
    height: 16px;
    cursor: pointer;
}

.custom-option-chip:hover {
    border-color: rgba(59, 130, 246, 0.4);
    background: rgba(59, 130, 246, 0.08);
    color: #ffffff;
}

.custom-option-chip:has(input:checked) {
    border-color: var(--primary);
    background: rgba(59, 130, 246, 0.18);
    color: #ffffff;
    box-shadow: 0 0 12px rgba(59, 130, 246, 0.25);
}

.form-step-divider {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    margin: 2rem 0 1.25rem 0;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.step-badge {
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: rgba(59, 130, 246, 0.2);
    border: 1px solid var(--primary-light);
    color: var(--primary-light);
    font-size: 0.75rem;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.step-title {
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 700;
    color: #ffffff;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* ----------------------------------------------------
   11. FOOTER
   ---------------------------------------------------- */
.footer {
    border-top: 1px solid var(--border-color);
    background: #04060c;
    padding: 5rem 0 2.5rem;
    position: relative;
    z-index: 2;
}

.footer-top {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.6;
    margin: 1.25rem 0 1.5rem;
    max-width: 320px;
}

.footer-socials {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.social-icon-btn {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
}

.social-icon-btn:hover {
    color: var(--primary);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 0 12px var(--primary-glow);
}

.footer-col h4 {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 1.25rem;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.footer-sks-box {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    text-align: center;
}

.footer-sks-box img {
    height: 50px;
    width: auto;
    object-fit: contain;
    margin-bottom: 0.5rem;
}

.footer-sks-box p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.footer-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.footer-bottom a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.footer-bottom a:hover {
    color: var(--primary);
}
/* ----------------------------------------------------
   12. MOBILE & RESPONSIVE MASTER DESIGN
   ---------------------------------------------------- */

/* Body Lock when Drawer Open */
body.mobile-nav-locked {
    overflow: hidden !important;
    touch-action: none;
}

/* Nav Overlay for Mobile Drawer (Sıfır Bulanıklık - Tam Netlik) */
.nav-overlay {
    position: fixed;
    inset: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    background: rgba(0, 0, 0, 0.55);
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.25s ease, visibility 0.25s ease;
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

/* Drawer Internal Header (Desktop: Hidden) */
.mobile-nav-head {
    display: none;
}

.mobile-nav-cta {
    display: none;
}

/* ====================================================
   TABLET & COMPACT SCREENS (<= 1024px)
   ==================================================== */
@media (max-width: 1024px) {
    .container {
        padding: 0 1.25rem;
    }

    .hero-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
        text-align: center;
    }

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

    .hero-desc {
        max-width: 700px;
        margin-left: auto;
        margin-right: auto;
    }

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

    .hero-deck-wrapper {
        max-width: 580px;
        margin: 1rem auto 0;
    }

    .hero-stats {
        grid-template-columns: repeat(4, 1fr);
        gap: 1rem;
    }

    .teams-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .footer-top {
        grid-template-columns: repeat(2, 1fr);
        gap: 2.5rem;
    }
}

/* ====================================================
   SMARTPHONE & TABLET (<= 991px)
   ==================================================== */
@media (max-width: 991px) {
    /* Hide big buttons from navbar so logo and burger have room */
    .nav-actions #headerVolleyballBtn,
    .nav-actions #headerJoinBtn {
        display: none !important;
    }

    .mobile-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 44px;
        height: 44px;
        border-radius: 10px;
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.12);
        color: #ffffff;
        cursor: pointer;
        padding: 0;
        transition: var(--transition);
    }

    .mobile-toggle:active {
        background: rgba(59, 130, 246, 0.2);
        border-color: var(--primary-light);
        transform: scale(0.96);
    }

    /* Mobile Drawer */
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 86%;
        max-width: 360px;
        height: 100vh;
        height: 100dvh;
        background: linear-gradient(180deg, #0b1120 0%, #060a14 100%);
        border-left: 1px solid rgba(255, 255, 255, 0.12);
        box-shadow: -15px 0 45px rgba(0, 0, 0, 0.85);
        z-index: 1002;
        pointer-events: auto;
        touch-action: pan-y;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        padding: 1.25rem 1.25rem 2rem;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        transition: right 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    }

    .nav-menu.open {
        right: 0;
    }

    .mobile-nav-head {
        display: flex;
        align-items: center;
        justify-content: space-between;
        padding-bottom: 1rem;
        margin-bottom: 0.75rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .mobile-nav-title {
        font-family: var(--font-heading);
        font-size: 1.1rem;
        font-weight: 800;
        color: #ffffff;
        letter-spacing: 0.04em;
    }

    .mobile-nav-close {
        width: 42px;
        height: 42px;
        border-radius: 50%;
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.12);
        color: #cbd5e1;
        display: inline-flex;
        align-items: center;
        justify-content: center;
        cursor: pointer;
        position: relative;
        z-index: 2;
        transition: var(--transition);
    }

    .mobile-nav-close:active {
        background: rgba(239, 68, 68, 0.2);
        color: #f87171;
    }

    .nav-item {
        width: 100%;
    }

    .nav-item a {
        display: block;
        width: 100%;
        padding: 0.85rem 0.5rem;
        font-size: 1.05rem;
        font-weight: 600;
        color: #e2e8f0;
        border-bottom: 1px solid rgba(255, 255, 255, 0.04);
        transition: all 0.2s;
    }

    .nav-item a:hover,
    .nav-item a:active {
        color: var(--primary-light);
        padding-left: 0.85rem;
        background: rgba(59, 130, 246, 0.05);
        border-radius: 8px;
    }

    .nav-item a::after {
        display: none;
    }

    /* CTA buttons in drawer */
    .mobile-nav-cta {
        display: flex;
        flex-direction: column;
        gap: 0.65rem;
        margin-top: 1.25rem;
        padding-top: 1.25rem;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .mobile-nav-cta a {
        width: 100%;
        justify-content: center;
        text-align: center;
        padding: 0.85rem 1.25rem;
        font-size: 0.95rem;
    }

    /* Socials in drawer */
    .mobile-nav-socials-item {
        display: block;
        width: 100%;
        margin-top: 1.25rem;
        padding-top: 1.25rem;
        border-top: 1px solid rgba(255, 255, 255, 0.08);
    }

    .mobile-nav-socials-label {
        display: block;
        font-size: 0.75rem;
        font-weight: 700;
        text-transform: uppercase;
        letter-spacing: 0.08em;
        color: var(--primary-light);
        margin-bottom: 0.75rem;
    }

    .mobile-nav-socials {
        display: flex;
        align-items: center;
        gap: 0.55rem;
        flex-wrap: wrap;
    }

    .mobile-nav-socials .header-social-btn {
        width: 40px;
        height: 40px;
        border-radius: 10px;
        background: rgba(255, 255, 255, 0.06);
        border: 1px solid rgba(255, 255, 255, 0.1);
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }
}

/* ====================================================
   STANDARD MOBILE SCREENS (<= 768px)
   ==================================================== */
@media (max-width: 768px) {
    /* Performance: Canvas particles and blur optimizations */
    .quantum-field-canvas {
        opacity: 0.5;
    }

    .ambient-orb {
        filter: blur(80px) !important;
        opacity: 0.22 !important;
    }

    /* Topbar */
    .site-topbar {
        padding: 0.4rem 0;
        font-size: 0.78rem;
    }

    .topbar-tagline,
    .topbar-divider {
        display: none !important;
    }

    .topbar-contact-item {
        font-size: 0.76rem;
    }

    /* Announcement */
    .announcement-bar {
        font-size: 0.78rem;
        padding: 0.5rem 0.85rem;
        flex-wrap: wrap;
        gap: 0.4rem;
        line-height: 1.35;
    }

    .announcement-close {
        margin-left: auto;
    }

    /* Navbar */
    .navbar {
        padding: 0.65rem 0;
    }

    .brand-link {
        gap: 0.6rem;
        min-width: 0;
    }

    .brand-logo-img {
        height: 38px;
        width: auto;
    }

    .brand-name {
        font-size: 0.98rem;
        letter-spacing: -0.01em;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    /* Hero Section */
    .hero {
        padding: 2.75rem 0 2.25rem;
        min-height: auto;
    }

    .hero-grid {
        gap: 2.25rem;
    }

    .hero-badge {
        font-size: 0.74rem;
        padding: 0.38rem 0.85rem;
        margin-bottom: 1rem;
        max-width: 100%;
        line-height: 1.3;
    }

    .hero-title {
        font-size: clamp(1.65rem, 6.5vw, 2.25rem);
        line-height: 1.2;
        margin-bottom: 1.15rem;
        letter-spacing: -0.015em;
    }

    .hero-title br {
        display: none;
    }

    .hero-desc {
        font-size: 0.94rem;
        line-height: 1.65;
        margin-bottom: 1.75rem;
        text-align: left;
    }

    .hero-actions {
        display: flex;
        flex-direction: column;
        width: 100%;
        gap: 0.75rem;
        margin-bottom: 2rem;
    }

    .hero-actions a {
        width: 100% !important;
        justify-content: center;
        padding: 0.85rem 1.4rem;
        font-size: 0.95rem;
        min-height: 48px;
    }

    /* Hero Stats */
    .hero-stats {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 0.75rem;
        padding-top: 1.5rem;
        width: 100%;
    }

    .stat-item {
        background: rgba(255, 255, 255, 0.025);
        border: 1px solid rgba(255, 255, 255, 0.06);
        border-radius: 12px;
        padding: 0.85rem 0.75rem;
        text-align: center;
    }

    .stat-num {
        font-size: 1.75rem;
        margin-bottom: 0.2rem;
    }

    .stat-label {
        font-size: 0.74rem;
    }

    /* Hero Console Deck */
    .hero-deck-wrapper {
        max-width: 100%;
        margin: 0;
    }

    .deck-ambient-glow {
        display: none;
    }

    .deck-console-card {
        padding: 1.25rem 1.1rem;
        border-radius: 18px;
        gap: 1.1rem;
        animation: none;
    }

    .deck-console-card:hover {
        transform: none;
    }

    .deck-brand-row {
        padding: 0.85rem 1rem;
        gap: 0.85rem;
        border-radius: 12px;
    }

    .deck-logo-box {
        width: 44px;
        height: 44px;
        border-radius: 10px;
    }

    .deck-logo-box img {
        width: 28px;
    }

    .deck-club-title {
        font-size: 0.92rem;
    }

    .deck-club-sub {
        font-size: 0.74rem;
    }

    .deck-module {
        padding: 1rem 1.1rem;
        border-radius: 12px;
    }

    .module-badges-wrap {
        display: flex;
        flex-direction: column;
        gap: 0.45rem;
        width: 100%;
    }

    .module-tag {
        width: 100%;
        text-align: center;
        font-size: 0.76rem;
        padding: 0.4rem;
    }

    .deck-team-pills {
        grid-template-columns: 1fr;
        gap: 0.55rem;
    }

    .team-mini-pill {
        flex-direction: row;
        align-items: center;
        gap: 0.75rem;
        padding: 0.75rem 0.85rem;
    }

    .team-mini-pill .pill-icon {
        font-size: 1.35rem;
    }

    .deck-motto-strip {
        font-size: 0.85rem;
        padding: 0.75rem 1rem;
    }

    /* Ticker */
    .club-live-ticker {
        padding: 0.65rem 0;
    }

    .ticker-track {
        gap: 2rem;
        font-size: 0.78rem;
    }

    /* Volleyball Banner */
    .volleyball-banner-section {
        margin: 1rem 0 2.5rem;
    }

    .volleyball-promo-card {
        padding: 1.35rem 1.15rem;
        flex-direction: column;
        align-items: stretch;
        gap: 1.25rem;
        border-radius: 16px;
    }

    .promo-left {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.85rem;
    }

    .promo-icon-box {
        width: 50px;
        height: 50px;
        font-size: 1.6rem;
        border-radius: 12px;
    }

    .promo-info h3 {
        font-size: 1.15rem;
    }

    .promo-info p {
        font-size: 0.86rem;
    }

    .promo-btn {
        width: 100%;
        justify-content: center;
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
    }

    /* Sections */
    .section {
        padding: 3.5rem 0;
    }

    .section-header {
        margin-bottom: 2rem;
    }

    .section-title {
        font-size: clamp(1.6rem, 5.8vw, 2.1rem);
        line-height: 1.2;
    }

    .section-desc {
        font-size: 0.92rem;
        line-height: 1.55;
    }

    /* About */
    .about-grid {
        grid-template-columns: 1fr;
        gap: 2.25rem;
    }

    .about-text h3 {
        font-size: 1.35rem;
    }

    .pillars-grid {
        grid-template-columns: 1fr;
        gap: 0.85rem;
        margin-top: 1.5rem;
    }

    .pillar-card {
        padding: 1.15rem;
    }

    .about-card-quantum {
        padding: 1.5rem 1.25rem;
        border-radius: 16px;
    }

    .about-bullet-list {
        gap: 0.95rem;
    }

    .about-bullet-list li {
        font-size: 0.88rem;
    }

    /* Teams */
    .team-card-wide {
        padding: 1.35rem 1.15rem;
        border-radius: 16px;
        margin-bottom: 1.25rem;
    }

    .team-wide-inner {
        flex-direction: column;
        gap: 1rem;
    }

    .team-wide-icon {
        width: 48px;
        height: 48px;
        font-size: 1.5rem;
        border-radius: 12px;
    }

    .teams-grid {
        grid-template-columns: 1fr;
        gap: 1.15rem;
    }

    .team-card {
        padding: 1.35rem 1.15rem;
        border-radius: 16px;
    }

    .team-title {
        font-size: 1.12rem;
    }

    .team-desc {
        font-size: 0.88rem;
    }

    /* Blog Filters & Cards */
    .project-filters {
        justify-content: flex-start;
        overflow-x: auto;
        flex-wrap: nowrap;
        gap: 0.5rem;
        padding-bottom: 0.65rem;
        -webkit-overflow-scrolling: touch;
        width: 100%;
        scrollbar-width: none;
    }

    .project-filters::-webkit-scrollbar {
        display: none;
    }

    .filter-chip {
        flex-shrink: 0;
        white-space: nowrap;
        font-size: 0.82rem;
        padding: 0.45rem 1rem;
    }

    .projects-grid {
        grid-template-columns: 1fr;
        gap: 1.25rem;
    }

    .project-card {
        padding: 1.35rem 1.15rem;
        border-radius: 16px;
    }

    .project-title {
        font-size: 1.2rem;
    }

    .project-desc {
        font-size: 0.88rem;
    }

    .blog-detail-article {
        padding: 1.35rem 1.15rem !important;
        border-radius: 16px !important;
    }

    /* Events */
    .events-grid {
        grid-template-columns: 1fr !important;
        gap: 1.15rem;
    }

    .event-card {
        padding: 1.35rem 1.15rem;
        border-radius: 16px;
    }

    .event-title {
        font-size: 1.12rem;
    }

    .event-desc {
        font-size: 0.86rem;
    }

    /* Join CTA Card in index.php */
    .join-banner-card {
        padding: 2.25rem 1.25rem !important;
        border-radius: 18px !important;
    }

    .join-banner-card h2 {
        font-size: 1.7rem !important;
        line-height: 1.25 !important;
    }

    .join-banner-card p {
        font-size: 0.95rem !important;
        margin-bottom: 1.75rem !important;
    }

    .join-banner-card a {
        width: 100% !important;
        justify-content: center;
    }

    /* Application Form Page (katil.php) */
    .join-form-card {
        padding: 1.5rem 1.15rem !important;
        border-radius: 18px !important;
    }

    .form-group-row {
        grid-template-columns: 1fr !important;
        gap: 0 !important;
    }

    /* Critical iOS Safari zoom prevention on inputs */
    .form-control,
    select.form-control,
    textarea.form-control {
        font-size: 16px !important;
        padding: 0.75rem 0.9rem;
    }

    .form-options-grid {
        grid-template-columns: repeat(2, 1fr) !important;
        gap: 0.5rem !important;
    }

    .custom-option-chip {
        padding: 0.65rem 0.65rem;
        font-size: 0.82rem;
    }

    /* Footer */
    .footer {
        padding: 3rem 0 1.5rem;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: 0.85rem;
        text-align: center;
    }
}

/* ====================================================
   EXTRA SMALL MOBILE SCREENS (<= 480px / iPhone SE / 360px)
   ==================================================== */
@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .brand-name {
        font-size: 0.86rem;
    }

    .brand-logo-img {
        height: 34px;
    }

    .hero-title {
        font-size: 1.65rem;
    }

    .hero-badge {
        font-size: 0.7rem;
    }

    .form-options-grid {
        grid-template-columns: 1fr !important;
    }

    .stat-num {
        font-size: 1.55rem;
    }

    .btn-primary,
    .btn-outline {
        padding: 0.8rem 1.2rem;
        font-size: 0.92rem;
    }
}