/* ===================================================================
   T-ERA CENTER — Design tokens
   Palette: cool paper white, deep petrol teal, logo blue accent
   Type: Space Grotesk (display) / IBM Plex Sans (body) / IBM Plex Mono (data)
   Signature: equipment-nameplate tags [EQ·01] + blueprint grid motif
=================================================================== */

:root {
  --bg: #F3F6F5;
  --bg-alt: #EAEFEC;
  --ink: #101817;
  --ink-soft: #46534F;
  --petrol: #0E3B36;
  --petrol-deep: #0A2B27;
  --brass: #106FA0;
  --brass-light: #3E9BCB;
  --teal-bright: #00A090;
  --line: #CBD6D1;
  --card-bg: #FFFFFF;

  --club: #2B6E8C;
  --club-deep: #1B4A5F;
  --club-light: #7EC1DA;

  --font-display: 'Manrope', sans-serif;
  --font-body: 'Manrope', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --maxw: 1180px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 32px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  color: var(--brass);
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  width: 20px;
  height: 1px;
  background: var(--brass);
  display: inline-block;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--petrol-deep);
  letter-spacing: -0.01em;
  margin: 0;
}

.section-title {
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 600;
  max-width: 720px;
}

.section-intro {
  color: var(--ink-soft);
  max-width: 620px;
  font-size: 16.5px;
  margin-top: 16px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--petrol);
  background: rgba(14, 59, 54, 0.07);
  border: 1px solid rgba(14, 59, 54, 0.18);
  padding: 3px 9px;
  border-radius: 3px;
  display: inline-block;
}

section { padding: 96px 0; position: relative; }
section + section { border-top: 1px solid var(--line); }

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

/* ---------- Header ---------- */
header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(243, 246, 245, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 32px;
  height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  color: var(--petrol-deep);
  text-decoration: none;
}
.brand-mark {
  width: 34px; height: 34px;
  border-radius: 6px;
  background: var(--petrol);
  position: relative;
  flex-shrink: 0;
}
.brand-mark::after {
  content: "";
  position: absolute;
  inset: 8px;
  border: 1.5px solid var(--brass-light);
  border-radius: 2px;
}
.brand img.brand-logo {
  height: 48px;
  width: auto;
  max-width: 240px;
  border-radius: 0;
  object-fit: contain;
  display: block;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 28px;
}
nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 24px;
  margin: 0; padding: 0;
}
nav a {
  text-decoration: none;
  font-size: 14px;
  color: var(--ink-soft);
  font-weight: 500;
  position: relative;
  padding-bottom: 3px;
  white-space: nowrap;
}
nav a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -1px;
  width: 100%;
  height: 2px;
  background: var(--teal-bright);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .35s cubic-bezier(.4,0,.2,1);
}
nav a:hover { color: var(--petrol); }
nav a:hover::after { transform: scaleX(1); transform-origin: left; }

.nav-cta {
  background: var(--petrol);
  color: #fff !important;
  padding: 11px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  transition: transform .25s, background .25s;
}
.nav-cta:hover { background: var(--petrol-deep); transform: translateY(-1px); }

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
}
.menu-toggle span {
  display: block;
  width: 24px; height: 2px;
  margin: 0 auto;
  background: var(--petrol-deep);
  border-radius: 2px;
  transition: transform .3s ease, opacity .2s ease;
}
header.nav-open .menu-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
header.nav-open .menu-toggle span:nth-child(2) { opacity: 0; }
header.nav-open .menu-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero: split entry (Center / Student Club) ---------- */
#hero {
  padding: 0;
  border-top: none;
  overflow: hidden;
}
.blueprint-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(14,59,54,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(14,59,54,0.05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: linear-gradient(180deg, black, transparent 85%);
}

.split-hero {
  position: relative;
  display: flex;
  min-height: calc(100vh - 76px);
  margin-top: 76px;
}

.split-panel {
  position: relative;
  flex: 0 0 50%;
  display: flex;
  align-items: center;
  text-decoration: none;
  padding: 90px 64px;
  overflow: hidden;
  transition: flex-basis .55s cubic-bezier(.4,0,.2,1);
}
.split-hero:hover .split-panel { flex-basis: 50%; }
.split-hero .split-panel:hover { flex-basis: 62%; }

.split-center {
  background:
    linear-gradient(180deg, rgba(14,59,54,0.04), transparent 40%),
    var(--bg);
}
.split-club {
  background: linear-gradient(155deg, var(--club-deep) 0%, #0F2E3B 100%);
}

.panel-content { position: relative; z-index: 2; max-width: 480px; }

.panel-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-size: cover;
  background-position: center;
}
.panel-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(243,246,245,0.96) 0%, rgba(243,246,245,0.82) 40%, rgba(243,246,245,0.55) 100%);
}
@media (max-width: 920px) {
  .panel-bg::after { background: rgba(243,246,245,0.86); }
}

/* Kulüp panelinde koyu teal örtü (beyaz yazı okunur kalsın, foto hafif görünsün) */
.split-club .panel-bg::after {
  background: linear-gradient(150deg, rgba(27,74,95,0.94) 0%, rgba(20,58,74,0.86) 45%, rgba(15,46,59,0.66) 100%);
}
@media (max-width: 920px) {
  .split-club .panel-bg::after { background: rgba(20,58,74,0.86); }
}

.split-club .eyebrow { color: var(--club-light); }
.split-club .eyebrow::before { background: var(--club-light); }
.split-club .hero-title { color: #fff; }
.split-club .hero-subtitle { color: #B9D3DE; }

.hero-title {
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 700;
  line-height: 1.12;
  margin: 16px 0 18px;
}
.hero-subtitle {
  font-size: 16.5px;
  color: var(--ink-soft);
  margin-bottom: 26px;
}
.panel-stat {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 30px;
  font-family: var(--font-mono);
}
.panel-stat b { font-size: 24px; color: var(--petrol); }
.panel-stat span { font-size: 13px; color: var(--ink-soft); }
.split-club .panel-stat b { color: var(--club-light); }
.split-club .panel-stat span { color: #9FBCC7; }

.panel-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 18px 40px;
  margin-top: 4px;
}
.panel-actions .panel-stat { margin-bottom: 0; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--petrol);
  color: #fff;
  text-decoration: none;
  padding: 15px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition: transform .3s cubic-bezier(.4,0,.2,1), box-shadow .3s;
}
.btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--petrol-deep);
  transform: scaleX(0);
  transform-origin: left;
  z-index: -1;
  transition: transform .4s cubic-bezier(.4,0,.2,1);
  border-radius: 999px;
}
.split-panel:hover .btn::before { transform: scaleX(1); }
.split-panel:hover .btn {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(14,59,54,0.28);
}
.btn-club { background: var(--club); }
.btn-club::before { background: var(--club-light); }
.split-club:hover .btn-club { color: var(--club-deep); }
.btn-arrow { transition: transform .3s; }
.split-panel:hover .btn-arrow { transform: translateX(4px); }

.split-divider {
  position: absolute;
  top: 0; bottom: 0; left: 50%;
  width: 1px;
  background: linear-gradient(180deg, transparent, rgba(0,0,0,0.15), transparent);
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}
.divider-badge {
  position: absolute;
  width: 58px; height: 58px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--petrol-deep);
  box-shadow: 0 8px 24px rgba(14,59,54,0.15);
  animation: floatBadge 5s ease-in-out infinite;
}
@keyframes floatBadge {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}
@media (prefers-reduced-motion: reduce) {
  .divider-badge { animation: none; }
}

@media (max-width: 920px) {
  .split-hero { flex-direction: column; min-height: auto; }
  .split-panel, .split-hero .split-panel:hover { flex-basis: auto; }
  .split-panel { padding: 72px 32px; min-height: 460px; }
  .split-divider { left: 0; right: 0; top: 50%; bottom: auto; width: auto; height: 1px; }
  .divider-badge { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); }
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 64px;
}
.about-body p {
  color: var(--ink-soft);
  white-space: pre-line;
  font-size: 16px;
}
.about-stats {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.stat-card {
  border: 1px solid var(--line);
  background: var(--card-bg);
  border-radius: 10px;
  padding: 22px 24px;
  border-left: 3px solid var(--brass);
}
.stat-card b {
  font-family: var(--font-mono);
  font-size: 30px;
  color: var(--petrol-deep);
  display: block;
}
.stat-card span { color: var(--ink-soft); font-size: 14px; }

/* ---------- Approach ---------- */
.mvv-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 60px;
}
.mvv-card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 30px;
}
.mvv-card .tag { margin-bottom: 16px; }
.mvv-card h3 { font-size: 19px; margin-bottom: 10px; }
.mvv-card p { color: var(--ink-soft); font-size: 15px; margin: 0; }

.pillars {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
}
.pillar {
  background: var(--card-bg);
  padding: 30px 32px;
}
.pillar .code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--brass);
  letter-spacing: 0.08em;
}
.pillar h4 { font-size: 17px; margin: 10px 0 8px; }
.pillar p { color: var(--ink-soft); font-size: 14.5px; margin: 0; }

/* ---------- Equipment ---------- */
#ekipmanlar { background: var(--petrol-deep); border-top: none; }
#ekipmanlar .eyebrow { color: var(--brass-light); }
#ekipmanlar .eyebrow::before { background: var(--brass-light); }
#ekipmanlar .section-title { color: #fff; }
#ekipmanlar .section-intro { color: #B7C7C3; }

.equipment-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.eq-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 12px;
  padding: 28px;
}
.eq-card .code {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--brass-light);
  letter-spacing: 0.08em;
}
.eq-card .cat {
  font-family: var(--font-mono);
  font-size: 11px;
  color: #8FB0AA;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-left: 10px;
}
.eq-card h4 { color: #fff; font-size: 18px; margin: 12px 0 8px; }
.eq-card p.desc { color: #A9BFB9; font-size: 14px; margin: 0 0 16px; }
.eq-card ul { margin: 0; padding: 0; list-style: none; }
.eq-card li {
  color: #D7E3DF;
  font-size: 13.5px;
  padding: 7px 0;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  gap: 10px;
}
.eq-card li::before {
  content: "";
  width: 5px; height: 5px;
  background: var(--brass-light);
  border-radius: 1px;
  flex-shrink: 0;
}

.eq-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid rgba(255,255,255,0.12);
}
.eq-stats div { text-align: center; }
.eq-stats b {
  font-family: var(--font-mono);
  color: var(--brass-light);
  font-size: 28px;
  display: block;
}
.eq-stats span { color: #A9BFB9; font-size: 13px; }

/* ---------- Room Spotlight ---------- */
.rooms-list { display: flex; flex-direction: column; gap: 28px; }
.room-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  align-items: stretch;
}
.room-card:nth-child(even) { direction: rtl; }
.room-card:nth-child(even) > * { direction: ltr; }
.room-media {
  position: relative;
  min-height: 280px;
  background: linear-gradient(155deg, var(--petrol) 0%, var(--petrol-deep) 100%);
}
.room-media img { width: 100%; height: 100%; object-fit: cover; position: absolute; inset: 0; }
.room-media .placeholder-tag {
  position: absolute; bottom: 18px; left: 18px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.06em;
}
.room-body { padding: 44px 48px; display: flex; flex-direction: column; justify-content: center; }
.room-body .tag { margin-bottom: 16px; align-self: flex-start; }
.room-body h3 { font-size: 24px; margin-bottom: 14px; }
.room-body p { color: var(--ink-soft); font-size: 15.5px; margin: 0 0 20px; }
.room-features { display: flex; flex-wrap: wrap; gap: 10px; }
.room-feature {
  font-family: var(--font-mono);
  font-size: 12px;
  background: rgba(14,59,54,0.06);
  border: 1px solid rgba(14,59,54,0.16);
  color: var(--petrol);
  padding: 7px 14px;
  border-radius: 999px;
}
@media (max-width: 920px) {
  .room-card, .room-card:nth-child(even) { grid-template-columns: 1fr; direction: ltr; }
  .room-media { min-height: 220px; }
  .room-body { padding: 32px; }
}

/* ---------- Programs ---------- */
.programs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.program-card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 26px;
  transition: border-color .15s, transform .15s;
}
.program-card:hover { border-color: var(--brass); transform: translateY(-2px); }
.program-card .meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.program-card .duration {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--ink-soft);
}
.program-card h4 { font-size: 17px; margin-bottom: 8px; }
.program-card p { color: var(--ink-soft); font-size: 14px; margin: 0; }

/* ---------- Events ---------- */
.events-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.event-card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.event-card .tag { align-self: flex-start; }
.event-card h4 { font-size: 18px; }
.event-card p.desc { color: var(--ink-soft); font-size: 14.5px; margin: 0; }
.event-card .meta {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--brass);
  margin-top: 6px;
}
.event-card a.more {
  margin-top: auto;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--petrol);
  text-decoration: none;
}

/* ---------- Event Moments Gallery ---------- */
#kareler { padding-bottom: 80px; }
#kareler .section-head { margin-bottom: 40px; }
.gallery-marquee {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 6%, black 94%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 6%, black 94%, transparent);
}
.gallery-grid {
  display: flex;
  gap: 20px;
  width: max-content;
  animation: marquee 36s linear infinite;
}
.gallery-marquee:hover .gallery-grid { animation-play-state: paused; }
.gallery-card {
  position: relative;
  flex: 0 0 300px;
  aspect-ratio: 4/3;
  border-radius: 14px;
  overflow: hidden;
  background: linear-gradient(155deg, var(--petrol) 0%, var(--petrol-deep) 100%);
}
.gallery-card img { width: 100%; height: 100%; object-fit: cover; }
.gallery-card .caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 16px 18px;
  background: linear-gradient(0deg, rgba(7,20,18,0.78), transparent);
  color: #fff;
  font-size: 13.5px;
  font-weight: 600;
}
.gallery-card.placeholder .caption {
  background: none;
  top: 0; display: flex; align-items: flex-end;
  color: rgba(255,255,255,0.85);
}
@media (max-width: 620px) {
  .gallery-card { flex-basis: 240px; }
}

/* ---------- Student Club ---------- */
#kulup.club-section {
  background: linear-gradient(180deg, var(--club-deep) 0%, #0F2E3B 100%);
  border-top: none;
  overflow: hidden;
}
#kulup.club-section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(126,193,218,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(126,193,218,0.06) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 85% 55% at 50% 0%, black, transparent 75%);
}
#kulup.club-section::after {
  content: "";
  position: absolute;
  top: -8%; right: -6%;
  width: 540px; height: 540px;
  pointer-events: none;
  background: radial-gradient(circle, rgba(126,193,218,0.16), transparent 62%);
}
#kulup .wrap { position: relative; z-index: 1; }
#kulup .eyebrow { color: var(--club-light); }
#kulup .eyebrow::before { background: var(--club-light); }
#kulup .section-title { color: #fff; }
#kulup .section-intro { color: #A9C7D2; }

.club-mission {
  position: relative;
  background: linear-gradient(135deg, rgba(126,193,218,0.10), rgba(255,255,255,0.03));
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 16px;
  padding: 34px 38px 34px 42px;
  margin-bottom: 44px;
  max-width: 780px;
  overflow: hidden;
}
.club-mission::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 4px;
  background: linear-gradient(180deg, var(--club-light), transparent);
}
.club-mission .tag {
  background: rgba(126,193,218,0.12);
  border-color: rgba(126,193,218,0.35);
  color: var(--club-light);
  margin-bottom: 16px;
}
.club-mission h3 { color: #fff; font-size: 21px; margin-bottom: 10px; }
.club-mission p { color: #C4DAE2; margin: 0; font-size: 15.5px; }

.club-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 68px;
}
.club-stats .stat-block {
  position: relative;
  text-align: center;
  padding: 30px 18px 26px;
  border: 1px solid rgba(126,193,218,0.18);
  border-radius: 14px;
  background: linear-gradient(180deg, rgba(126,193,218,0.08), rgba(255,255,255,0.02));
  overflow: hidden;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.club-stats .stat-block::before {
  content: "";
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 46px; height: 3px;
  border-radius: 0 0 3px 3px;
  background: linear-gradient(90deg, var(--club-light), #A9D6E8);
}
.club-stats .stat-block:hover {
  transform: translateY(-4px);
  border-color: rgba(126,193,218,0.45);
  box-shadow: 0 14px 34px rgba(0,0,0,0.28);
}
.club-stats b {
  font-family: var(--font-mono);
  color: var(--club-light);
  font-size: 34px;
  line-height: 1;
  display: block;
  margin-bottom: 8px;
  text-shadow: 0 0 22px rgba(126,193,218,0.35);
}
.club-stats span {
  color: #A9C7D2;
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.club-subhead {
  position: relative;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 23px;
  color: #fff;
  margin-bottom: 8px;
  padding-left: 16px;
}
.club-subhead::before {
  content: "";
  position: absolute;
  left: 0; top: 5px; bottom: 5px;
  width: 4px;
  border-radius: 2px;
  background: linear-gradient(180deg, var(--club-light), rgba(126,193,218,0.2));
}
#kulup .club-subhead + .section-intro { max-width: 620px; }

.club-portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-bottom: 68px;
}
.club-card {
  position: relative;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 14px;
  padding: 26px 26px 24px;
  overflow: hidden;
  transition: border-color .2s, transform .2s, box-shadow .2s, background .2s;
}
.club-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0;
  height: 100%; width: 3px;
  background: linear-gradient(180deg, var(--club-light), transparent);
  opacity: 0;
  transition: opacity .2s;
}
.club-card:hover {
  border-color: rgba(126,193,218,0.4);
  transform: translateY(-4px);
  background: rgba(255,255,255,0.06);
  box-shadow: 0 16px 38px rgba(0,0,0,0.30);
}
.club-card:hover::before { opacity: 1; }
.club-card .tag {
  background: rgba(126,193,218,0.12);
  border-color: rgba(126,193,218,0.35);
  color: var(--club-light);
}
.club-card h4 { color: #fff; font-size: 17px; margin: 12px 0 8px; }
.club-card p.desc { color: #A9C7D2; font-size: 14px; margin: 0 0 12px; }
.club-card .meta {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--club-light);
}

.club-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-left: 2px solid transparent;
  border-image: linear-gradient(180deg, rgba(126,193,218,0.5), rgba(126,193,218,0.08)) 1;
  margin-left: 6px;
}
.timeline-item {
  position: relative;
  padding: 0 0 34px 34px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item::before {
  content: "";
  position: absolute;
  left: -8px; top: 3px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--club-light);
  border: 3px solid var(--club-deep);
  box-shadow: 0 0 0 4px rgba(126,193,218,0.14), 0 0 14px rgba(126,193,218,0.5);
}
.timeline-item .year {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--club-light);
  letter-spacing: 0.08em;
  background: rgba(126,193,218,0.10);
  border: 1px solid rgba(126,193,218,0.25);
  padding: 2px 10px;
  border-radius: 999px;
}
.timeline-item h4 { color: #fff; font-size: 16.5px; margin: 10px 0 6px; }
.timeline-item p { color: #A9C7D2; font-size: 14px; margin: 0; max-width: 560px; }

/* ---------- Club team (Ekibimiz) ---------- */
.club-team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.team-card {
  text-align: center;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 14px;
  padding: 24px 20px 22px;
  transition: border-color .2s, transform .2s, box-shadow .2s, background .2s;
}
.team-card:hover {
  border-color: rgba(126,193,218,0.4);
  transform: translateY(-4px);
  background: rgba(255,255,255,0.06);
  box-shadow: 0 16px 38px rgba(0,0,0,0.30);
}
.team-photo {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 12px;
  overflow: hidden;
  position: relative;
  margin-bottom: 16px;
  background: linear-gradient(155deg, var(--club), var(--club-deep));
}
.team-photo img { width: 100%; height: 100%; object-fit: cover; }
.team-photo .initials {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--club-light);
  font-family: var(--font-mono);
  font-size: 26px;
}
.team-card h4 { color: #fff; font-size: 16px; margin: 0 0 4px; }
.team-role {
  display: block;
  font-size: 12.5px;
  color: #A9C7D2;
  margin-bottom: 14px;
}
.team-social {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  color: var(--club-light);
  text-decoration: none;
  padding: 5px 12px;
  border: 1px solid rgba(126,193,218,0.30);
  border-radius: 999px;
  transition: background .2s, border-color .2s;
}
.team-social:hover {
  background: rgba(126,193,218,0.14);
  border-color: rgba(126,193,218,0.55);
}

/* ---------- Clickable club cards ---------- */
a.club-card.clickable {
  display: block;
  text-decoration: none;
  cursor: pointer;
}
.card-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--club-light);
}
.card-more-arrow { transition: transform .25s ease; }
a.club-card.clickable:hover .card-more-arrow { transform: translateX(5px); }

/* ---------- Detail view (full-screen article) ---------- */
.detail-view {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: var(--bg);
  overflow-y: auto;
  opacity: 0;
  pointer-events: none;
  transition: opacity .3s ease;
}
.detail-view.open { opacity: 1; pointer-events: auto; }
body.detail-open { overflow: hidden; }

.detail-bar {
  position: sticky;
  top: 0;
  z-index: 2;
  background: rgba(243, 246, 245, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.detail-bar-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  height: 68px;
}
.detail-back {
  font-family: var(--font-body);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--petrol);
  background: none;
  border: 1px solid var(--line);
  padding: 9px 18px;
  border-radius: 999px;
  cursor: pointer;
  transition: background .2s, border-color .2s, transform .2s;
}
.detail-back:hover {
  background: var(--petrol);
  color: #fff;
  border-color: var(--petrol);
  transform: translateX(-2px);
}
.detail-kicker {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brass);
}

.detail-inner {
  max-width: 800px;
  padding-top: 44px;
  padding-bottom: 100px;
}
.detail-cover {
  width: 100%;
  aspect-ratio: 16 / 7;
  border-radius: 16px;
  overflow: hidden;
  background: var(--bg-alt);
  margin-bottom: 34px;
}
.detail-cover img { width: 100%; height: 100%; object-fit: cover; }
.detail-inner .tag { margin-bottom: 18px; }
.detail-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 4.2vw, 46px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--petrol-deep);
  margin: 0 0 16px;
}
.detail-meta {
  font-family: var(--font-mono);
  font-size: 13.5px;
  color: var(--brass);
  padding-bottom: 26px;
  margin-bottom: 30px;
  border-bottom: 1px solid var(--line);
}
.detail-body p {
  font-size: 17px;
  line-height: 1.8;
  color: var(--ink-soft);
  margin: 0 0 22px;
}
.detail-body p:last-child { margin-bottom: 0; }

/* ---------- Advisors ---------- */
.advisors-marquee {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 6%, black 94%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 6%, black 94%, transparent);
}
.advisors-grid {
  display: flex;
  gap: 20px;
  width: max-content;
  animation: marquee 40s linear infinite;
}
.advisors-marquee:hover .advisors-grid { animation-play-state: paused; }
.advisor-card { flex: 0 0 200px; text-align: center; }
.advisor-photo {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 10px;
  background: linear-gradient(155deg, var(--petrol), var(--petrol-deep));
  margin-bottom: 14px;
  overflow: hidden;
  position: relative;
}
.advisor-photo img { width: 100%; height: 100%; object-fit: cover; }
.advisor-photo .initials {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  color: var(--brass-light);
  font-family: var(--font-mono);
  font-size: 22px;
}
.advisor-card h4 { font-size: 14.5px; margin-bottom: 3px; }
.advisor-card span { font-size: 12.5px; color: var(--ink-soft); }

/* ---------- Partners ---------- */
.partners-grid {
  display: flex;
  gap: 16px;
  width: max-content;
  animation: marquee 28s linear infinite;
}
.partners-marquee:hover .partners-grid { animation-play-state: paused; }
.partner-card { flex: 0 0 220px; }
.partner-card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 92px;
  text-align: center;
}
.partner-card img { max-height: 44px; width: auto; margin: 0 auto; }
.partner-card span { font-size: 12.5px; color: var(--ink-soft); font-weight: 500; }

/* ---------- Contact ---------- */
#iletisim { background: var(--bg-alt); }
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.contact-list { display: flex; flex-direction: column; gap: 20px; margin-top: 28px; }
.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 18px 20px;
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 10px;
}
.contact-item .ic {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--brass);
  border: 1px solid var(--line);
  padding: 4px 8px;
  border-radius: 4px;
  flex-shrink: 0;
}
.contact-item a, .contact-item div.val { font-size: 15px; text-decoration: none; color: var(--ink); }
.map-frame {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--petrol-deep);
  display: flex;
  align-items: center;
  justify-content: center;
}
.map-embed {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}
.map-open {
  position: absolute;
  bottom: 12px; right: 12px;
  z-index: 2;
  color: #fff;
  background: var(--petrol);
  font-family: var(--font-mono);
  font-size: 12px;
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 999px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.28);
  transition: background .2s, transform .2s;
}
.map-open:hover { background: var(--petrol-deep); transform: translateY(-1px); }
.map-open-center {
  color: var(--brass-light);
  font-family: var(--font-mono);
  font-size: 13px;
  text-decoration: none;
  border: 1px solid var(--brass-light);
  padding: 10px 18px;
  border-radius: 6px;
}

/* ---------- Footer ---------- */
footer {
  background: var(--petrol-deep);
  color: #A9BFB9;
  padding: 64px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.3fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 24px;
}
.footer-logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  color: #fff;
  margin-bottom: 12px;
}
.footer-tagline {
  font-size: 13.5px;
  line-height: 1.6;
  color: #93ACA6;
  margin: 0 0 20px;
  max-width: 300px;
}
.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brass-light);
  margin: 0 0 18px;
  font-weight: 500;
}
.footer-links { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 11px; }
.footer-links a {
  color: #A9BFB9;
  text-decoration: none;
  font-size: 14px;
  transition: color .2s;
}
.footer-links a:hover { color: #fff; }
.footer-contact { display: flex; flex-direction: column; gap: 12px; }
.footer-contact .fc-item {
  color: #A9BFB9;
  text-decoration: none;
  font-size: 14px;
  line-height: 1.5;
  transition: color .2s;
}
a.fc-item:hover { color: #fff; }
.footer-social-group { margin-top: 4px; }
.footer-social-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: #6E8983;
  margin-bottom: 10px;
}
.footer-socials { display: flex; gap: 10px; flex-wrap: wrap; }
.social-btn {
  width: 38px; height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  color: #C4D6D0;
  transition: background .2s, color .2s, border-color .2s, transform .2s;
}
.social-btn:hover {
  background: var(--brass);
  border-color: var(--brass);
  color: #fff;
  transform: translateY(-2px);
}
.social-btn svg { width: 17px; height: 17px; }
.social-btn span { font-family: var(--font-mono); font-size: 11px; }

.footer-bottom { }
.footer-bottom .support-text {
  font-size: 12.5px;
  line-height: 1.6;
  color: #7C948E;
  max-width: 760px;
  margin: 0 0 18px;
}
.footer-bottom-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
footer .copyright { font-size: 12.5px; }
footer a.admin-link { color: #6E8983; font-size: 12px; text-decoration: none; }
footer a.admin-link:hover { color: var(--brass-light); }

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
  .menu-toggle { display: flex; }
  .nav-menu {
    position: fixed;
    top: 76px; left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(243, 246, 245, 0.98);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
    padding: 8px 0 20px;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transition: max-height .35s ease, opacity .25s ease;
  }
  header.nav-open .nav-menu {
    max-height: calc(100vh - 76px);
    overflow-y: auto;
    opacity: 1;
    pointer-events: auto;
  }
  nav { width: 100%; }
  nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: 100%;
  }
  nav ul li { width: 100%; }
  nav ul li a {
    display: block;
    padding: 15px 32px;
    font-size: 16px;
  }
  nav a::after { display: none; }
  .nav-cta {
    margin: 14px 32px 0;
    text-align: center;
  }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { max-width: 420px; }
  .about-grid, .contact-grid { grid-template-columns: 1fr; }
  .mvv-grid, .equipment-grid, .events-grid { grid-template-columns: 1fr; }
  .club-portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .club-stats { grid-template-columns: 1fr; }
  .pillars { grid-template-columns: 1fr; }
  .programs-grid { grid-template-columns: repeat(2, 1fr); }
  .advisors-grid { grid-template-columns: repeat(3, 1fr); }
  .club-team-grid { grid-template-columns: repeat(2, 1fr); }
  .partner-card { flex-basis: 160px; }
  .eq-stats { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}
@media (max-width: 620px) {
  .wrap { padding: 0 20px; }
  section { padding: 64px 0; }
  .programs-grid, .advisors-grid, .club-team-grid { grid-template-columns: repeat(2, 1fr); }
  .club-portfolio-grid { grid-template-columns: 1fr; }
  .section-head { flex-direction: column; align-items: flex-start; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; animation: none !important; }
}

:focus-visible {
  outline: 2px solid var(--brass);
  outline-offset: 2px;
}

/* ---------- Fluid scroll-reveal (site-wide) ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s cubic-bezier(.4,0,.2,1), transform .8s cubic-bezier(.4,0,.2,1);
}
.reveal.in-view { opacity: 1; transform: translateY(0); }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* ---------- Partners: infinite marquee ---------- */
.partners-marquee {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .partners-grid, .advisors-grid { animation: none; }
}

/* ---------- Numbered program cards ---------- */
.program-card { position: relative; }
.program-card .index-num {
  position: absolute;
  top: 14px; right: 20px;
  font-family: var(--font-mono);
  font-size: 34px;
  font-weight: 500;
  color: rgba(14,59,54,0.08);
  line-height: 1;
}