/* ==========================================================================
   FAME CRYPT — Bileşenler
   Hero · İş Ortakları slider · Ürün kartları · Akademik kadro
   Zaman tüneli · Müfredat · Sponsorlar · İletişim · Projeler
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. HERO (karşılama)
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 76px;
  overflow: hidden;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: clamp(2rem, 1rem + 4vw, 5rem);
  width: 100%;
}

.hero__title {
  font-family: var(--font-display);
  font-size: var(--text-hero);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  margin-bottom: 1.6rem;
}

.hero__title .line { display: block; }

.hero__lead {
  max-width: 54ch;
  color: var(--text-dim);
  font-size: clamp(1rem, 0.95rem + 0.4vw, 1.2rem);
  margin-bottom: 2.2rem;
}

.hero__lead strong { color: var(--white); font-weight: 600; }

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

/* Arka planı temizlenmiş görsel + altın hâle */
.hero__visual {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1;
}

.hero__visual::before {
  content: "";
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(213, 179, 107, 0.22) 0%, transparent 62%);
  animation: pulse-glow 5s var(--ease) infinite;
}

.hero__visual img {
  position: relative;
  width: min(74%, 360px);
  filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.6));
  animation: float-y 6s ease-in-out infinite;
}

/* Yörünge halkaları */
.hero__ring {
  position: absolute;
  inset: 0;
  border: 1px solid var(--gold-line);
  border-radius: 50%;
  animation: spin 28s linear infinite;
}

.hero__ring--2 { inset: 12%; border-style: dashed; opacity: 0.6; animation-duration: 20s; animation-direction: reverse; }
.hero__ring--3 { inset: 24%; opacity: 0.35; animation-duration: 36s; }

/* Özgün kriptografik çekirdek (kod ile, SVG) */
.crypto-core {
  position: relative;
  width: min(100%, 460px);
  height: auto;
  overflow: visible;
  animation: float-y 7s ease-in-out infinite;
}

.crypto-core [class^="cc-ring"],
.crypto-core .cc-sweep,
.crypto-core .cc-hex {
  transform-box: view-box;
  transform-origin: 200px 200px;
}

.cc-ring-outer { animation: spin 46s linear infinite; }
.cc-ring-mid { animation: spin 30s linear infinite reverse; }
.cc-sweep { animation: spin 7s linear infinite; }
.cc-hex { animation: hex-glow 5s var(--ease) infinite; }
.cc-node { animation: node-pulse 2.6s ease-in-out infinite; }
.cc-node:nth-of-type(2) { animation-delay: 0.8s; }
.cc-node:nth-of-type(3) { animation-delay: 1.5s; }
.cc-bits rect { animation: bit-blink 3s ease-in-out infinite; }

@keyframes hex-glow {
  0%, 100% { filter: drop-shadow(0 0 8px rgba(213, 179, 107, 0.3)); }
  50% { filter: drop-shadow(0 0 20px rgba(213, 179, 107, 0.6)); }
}

@keyframes node-pulse {
  0%, 100% { opacity: 0.45; }
  50% { opacity: 1; }
}

@keyframes bit-blink {
  0%, 100% { opacity: 0.15; }
  50% { opacity: 0.85; }
}

@keyframes pulse-glow {
  0%, 100% { transform: scale(1); opacity: 0.8; }
  50% { transform: scale(1.12); opacity: 1; }
}

@keyframes float-y {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

@keyframes academic-avatar-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-5px); }
}

@keyframes academic-avatar-orbit {
  to { transform: rotate(360deg); }
}

.scroll-cue {
  position: absolute;
  bottom: 1.8rem;
  left: 50%;
  transform: translateX(-50%);
  display: grid;
  justify-items: center;
  gap: 0.5rem;
  color: var(--text-faint);
  font-family: var(--font-display);
  font-size: 0.62rem;
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
}

.scroll-cue::after {
  content: "";
  width: 1px;
  height: 38px;
  background: linear-gradient(var(--gold), transparent);
  animation: cue 2s ease-in-out infinite;
}

@keyframes cue {
  0%, 100% { transform: scaleY(0.4); opacity: 0.3; transform-origin: top; }
  50% { transform: scaleY(1); opacity: 1; transform-origin: top; }
}

@media (max-width: 860px) {
  .hero__grid { grid-template-columns: 1fr; text-align: center; }
  .hero__lead { margin-inline: auto; }
  .hero__actions { justify-content: center; }
  .hero__visual { order: -1; max-width: 360px; margin-inline: auto; }
  .scroll-cue { display: none; }
}

/* --------------------------------------------------------------------------
   2. İŞ ORTAKLARIMIZ — siyah-beyaz logo slider (hover'da renkli + büyür)
   -------------------------------------------------------------------------- */
.marquee {
  position: relative;
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee__track {
  display: flex;
  gap: clamp(2rem, 1rem + 3vw, 4.5rem);
  width: max-content;
  animation: marquee var(--marquee) linear infinite;
}

.marquee:hover .marquee__track { animation-play-state: paused; }

@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* Saydam zemin üzerinde monokrom logo bandı */
.partner-logo {
  flex-shrink: 0;
  display: grid;
  place-items: center;
  height: 58px;
  width: clamp(130px, 10vw, 180px);
  padding: 0 0.8rem;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.partner-logo img {
  max-height: 42px;
  max-width: 100%;
  object-fit: contain;
  filter: grayscale(1) invert(1) brightness(0.78) contrast(0.9);
  opacity: 0.42;
  transition: filter var(--dur) var(--ease), opacity var(--dur) var(--ease),
    transform var(--dur) var(--ease);
}

.partner-logo:hover {
  transform: translateY(-2px);
  opacity: 1;
}

.partner-logo:hover img {
  filter: grayscale(1) invert(1) brightness(0.92) contrast(0.95);
  opacity: 0.82;
  transform: scale(1.04);
}

.marquee--home-partners {
  padding-block: clamp(0.75rem, 1.2vw, 1.1rem);
}

.marquee--home-partners .marquee__track {
  align-items: center;
  gap: clamp(2.2rem, 1.4rem + 3vw, 5.2rem);
}

.marquee--home-partners .partner-logo {
  height: 88px;
  width: clamp(160px, 12vw, 220px);
  padding: 0 0.6rem;
}

.marquee--home-partners .partner-logo--wide {
  width: clamp(210px, 16vw, 300px);
}

.marquee--home-partners .partner-logo--mark {
  width: clamp(110px, 8.5vw, 148px);
}

.marquee--home-partners .partner-logo img {
  max-height: 64px;
  filter: grayscale(1) brightness(1.34) contrast(0.98);
  opacity: 0.76;
}

.marquee--home-partners .partner-logo--wide img {
  max-height: 56px;
}

.marquee--home-partners .partner-logo--mark img {
  max-height: 72px;
}

.marquee--home-partners .partner-logo--invert img {
  filter: grayscale(1) invert(1) brightness(0.9) contrast(0.96);
  opacity: 0.72;
}

.marquee--home-partners .partner-logo--natural img {
  filter: grayscale(1) brightness(1.12) contrast(0.98);
  opacity: 0.82;
}

.marquee--home-partners .partner-logo:hover img,
.marquee--home-partners .partner-logo--invert:hover img,
.marquee--home-partners .partner-logo--natural:hover img {
  filter: grayscale(1) brightness(1.45) contrast(1);
  opacity: 0.92;
}

.marquee--home-partners .partner-logo--invert:hover img {
  filter: grayscale(1) invert(1) brightness(0.96) contrast(0.98);
}

.marquee--color {
  padding-block: clamp(0.7rem, 1vw, 1.1rem);
}

.marquee--color .partner-logo {
  height: 64px;
  width: clamp(150px, 12vw, 220px);
  padding: 0 1rem;
}

.marquee--color .partner-logo img {
  max-height: 46px;
  filter: grayscale(1) invert(1) brightness(0.72) contrast(0.9);
  opacity: 0.46;
}

.marquee--color .partner-logo:hover {
  transform: translateY(-2px);
}

.marquee--color .partner-logo:hover img {
  opacity: 0.86;
  transform: scale(1.04);
}

/* --------------------------------------------------------------------------
   3. ÜRÜNLERİMİZ — ürün kartları
   -------------------------------------------------------------------------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1.2rem, 0.6rem + 2vw, 2rem);
}

.product-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 2rem 1.8rem 1.7rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--surface-2), rgba(255, 255, 255, 0.01));
  overflow: hidden;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.product-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--gold-deep), var(--gold-bright), var(--gold-deep));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-slow) var(--ease);
}

.product-card:hover {
  transform: translateY(-10px);
  border-color: var(--gold-line);
  box-shadow: var(--shadow-gold);
}

.product-card:hover::before { transform: scaleX(1); }

.product-card__index {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
  color: var(--gold-deep);
}

.product-card__icon {
  width: 60px;
  height: 60px;
  margin: 1.4rem 0 1.5rem;
  display: grid;
  place-items: center;
  border-radius: 16px;
  background: var(--gold-soft);
  border: 1px solid var(--gold-line);
  color: var(--gold);
}

.product-card__icon svg { width: 30px; height: 30px; }

.product-card__name {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 0.3rem;
}

.product-card__tag {
  font-size: var(--text-sm);
  color: var(--gold);
  margin-bottom: 0.9rem;
}

.product-card__text {
  color: var(--text-dim);
  font-size: var(--text-sm);
  flex: 1;
  margin-bottom: 1.4rem;
}

.product-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--gold);
}

.product-card__cta span {
  transition: transform var(--dur) var(--ease);
}

.product-card:hover .product-card__cta span { transform: translateX(5px); }

@media (max-width: 820px) {
  .product-grid { grid-template-columns: 1fr; max-width: 460px; margin-inline: auto; }
}

/* --------------------------------------------------------------------------
   4. AKADEMİK KADRO — kişi kartı slider (anasayfa) + büyük (kurumsal)
   -------------------------------------------------------------------------- */
.team-rail {
  display: flex;
  gap: 1.4rem;
  overflow-x: auto;
  padding: 0.5rem 0.2rem 1.6rem;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--gold-deep) transparent;
}

.team-rail::-webkit-scrollbar { height: 6px; }
.team-rail::-webkit-scrollbar-thumb { background: var(--gold-deep); border-radius: 3px; }

.team-card {
  scroll-snap-align: start;
  flex: 0 0 auto;
  width: 280px;
  display: flex;
  flex-direction: column;
  padding: 1.8rem 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--surface-2), rgba(255, 255, 255, 0.01));
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.team-card:hover {
  transform: translateY(-6px);
  border-color: var(--gold-line);
  box-shadow: var(--shadow);
}

.team-card__avatar {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  margin-bottom: 1.2rem;
  font-size: 1.48rem;
}

.team-card__avatar,
.scholar-card__initials {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  place-items: center;
  border: 1px solid var(--gold-line);
  background:
    radial-gradient(circle at 30% 24%, rgba(255, 255, 255, 0.16), transparent 28%),
    linear-gradient(145deg, rgba(213, 179, 107, 0.2), rgba(10, 14, 32, 0.9) 66%, rgba(7, 9, 18, 0.96));
  color: var(--gold-bright);
  font-family: "Rajdhani", var(--font-display);
  font-weight: 700;
  letter-spacing: 0.1em;
  line-height: 1;
  text-shadow: 0 0 16px rgba(213, 179, 107, 0.35);
  box-shadow:
    inset 0 0 24px rgba(213, 179, 107, 0.08),
    inset 0 -18px 32px rgba(0, 0, 0, 0.24),
    0 16px 34px rgba(0, 0, 0, 0.24);
  animation: academic-avatar-float 5.6s ease-in-out infinite;
}

.team-card__avatar::before,
.team-card__avatar::after,
.scholar-card__initials::before,
.scholar-card__initials::after {
  content: "";
  position: absolute;
  pointer-events: none;
}

.team-card__avatar::before,
.scholar-card__initials::before {
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  background: conic-gradient(
    from 90deg,
    transparent 0 28%,
    rgba(213, 179, 107, 0.58) 36%,
    transparent 48% 100%
  );
  opacity: 0.72;
  padding: 1px;
  -webkit-mask:
    linear-gradient(#000 0 0) content-box,
    linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  animation: academic-avatar-orbit 8s linear infinite;
}

.team-card__avatar::after,
.scholar-card__initials::after {
  inset: 1px;
  z-index: 0;
  border-radius: inherit;
  border: 1px solid rgba(245, 221, 151, 0.14);
  background: linear-gradient(130deg, rgba(255, 255, 255, 0.08), transparent 38%);
  opacity: 0.54;
}

.team-card__avatar > span,
.scholar-card__initials > span {
  position: relative;
  z-index: 2;
  display: block;
  line-height: 0.78;
  transform: scaleY(1.22);
  transform-origin: center;
}

.team-card:hover .team-card__avatar,
.scholar-card:hover .scholar-card__initials {
  border-color: rgba(245, 221, 151, 0.48);
  color: var(--white);
  box-shadow:
    inset 0 0 28px rgba(213, 179, 107, 0.12),
    0 18px 42px rgba(0, 0, 0, 0.28),
    0 0 28px rgba(213, 179, 107, 0.16);
}

.team-card:nth-child(2n) .team-card__avatar,
.scholar-card:nth-child(2n) .scholar-card__initials {
  animation-delay: -1.6s;
}

.team-card:nth-child(3n) .team-card__avatar,
.scholar-card:nth-child(3n) .scholar-card__initials {
  animation-delay: -2.8s;
}

@media (prefers-reduced-motion: reduce) {
  .team-card__avatar,
  .scholar-card__initials,
  .team-card__avatar::before,
  .scholar-card__initials::before {
    animation: none;
  }
}

.team-card__name {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.03em;
}

.team-card__role {
  font-size: 0.82rem;
  color: var(--gold);
  margin: 0.35rem 0 0.7rem;
}

.team-card__org {
  font-size: var(--text-sm);
  color: var(--text-dim);
  margin-top: auto;
}

.team-card__field {
  font-size: 0.8rem;
  color: var(--text-faint);
  margin-top: 0.4rem;
}

/* Kurumsal: fotoğrafsız, daha büyük kartlar + yayınlar linki */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.6rem;
}

@media (min-width: 980px) {
  .team-grid .scholar-card:last-child:nth-child(3n + 1) {
    grid-column: 2;
  }
}

.scholar-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 2.2rem 2rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--surface-2), rgba(255, 255, 255, 0.01));
  overflow: hidden;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.scholar-card::before {
  content: "";
  position: absolute;
  top: -40px;
  right: -40px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--gold-soft), transparent 70%);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}

.scholar-card:hover {
  transform: translateY(-8px);
  border-color: var(--gold-line);
  box-shadow: var(--shadow-gold);
}

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

.scholar-card__initials {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  margin-bottom: 1.4rem;
  font-size: 1.62rem;
}

.scholar-card__name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.02em;
}

.scholar-card__role {
  font-size: 0.9rem;
  color: var(--gold);
  margin: 0.4rem 0 0.2rem;
}

.scholar-card__org {
  font-size: var(--text-sm);
  color: var(--text-dim);
}

.scholar-card__field {
  font-size: 0.85rem;
  color: var(--text-faint);
  margin: 0.9rem 0 1.4rem;
  padding-top: 0.9rem;
  border-top: 1px solid var(--line);
}

.scholar-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-top: auto;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--gold);
}

.scholar-card__link svg { width: 16px; height: 16px; }

.scholar-card__link:hover { color: var(--gold-bright); }

.scholar-card__link[aria-disabled="true"] {
  color: var(--text-faint);
  pointer-events: none;
}

/* --------------------------------------------------------------------------
   5. ZAMAN TÜNELİ (Hakkımızda) — hover'da kart büyür
   -------------------------------------------------------------------------- */
.timeline {
  --timeline-year-col: 90px;
  --timeline-gap: 2.25rem;
  --timeline-axis: calc(var(--timeline-year-col) + (var(--timeline-gap) / 2));
  --timeline-dot: 14px;
  position: relative;
  display: grid;
  gap: 1.4rem;
  margin-top: 3rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: var(--timeline-axis);
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--gold-line) 10%, var(--gold-line) 82%, transparent);
  transform: translateX(-0.5px);
}

.timeline__item {
  position: relative;
  display: grid;
  grid-template-columns: var(--timeline-year-col) 1fr;
  gap: var(--timeline-gap);
  align-items: start;
}

.timeline__item::before,
.timeline__item::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.timeline__item::before {
  left: calc(var(--timeline-axis) - (var(--timeline-dot) / 2));
  top: 1.62rem;
  z-index: 2;
  width: var(--timeline-dot);
  height: var(--timeline-dot);
  border: 1px solid rgba(245, 221, 151, 0.74);
  background:
    radial-gradient(circle, var(--gold-bright) 0 28%, var(--gold) 29% 48%, rgba(213, 179, 107, 0.18) 49% 100%);
  box-shadow:
    0 0 0 5px rgba(213, 179, 107, 0.12),
    0 0 22px rgba(213, 179, 107, 0.24);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.timeline__item::after {
  left: calc(var(--timeline-axis) - 4px);
  top: calc(1.62rem + 3px);
  z-index: 3;
  width: 8px;
  height: 8px;
  background: var(--navy-2);
  border: 1px solid rgba(245, 221, 151, 0.38);
}

.timeline__year {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--gold);
  text-align: right;
  padding-top: 1.2rem;
}

.timeline__content {
  position: relative;
  padding: 1.4rem 1.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, var(--surface-2), rgba(255, 255, 255, 0.01));
  transform-origin: left center;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.timeline__item:hover .timeline__content {
  transform: scale(1.035);
  border-color: var(--gold-line);
  box-shadow: var(--shadow-gold);
}

.timeline__item:hover::before {
  transform: scale(1.16);
  box-shadow:
    0 0 0 7px rgba(213, 179, 107, 0.14),
    0 0 30px rgba(213, 179, 107, 0.34);
}

.timeline__title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.4rem;
}

.timeline__desc {
  color: var(--text-dim);
  font-size: var(--text-sm);
}

@media (max-width: 600px) {
  .timeline {
    --timeline-axis: 8px;
    --timeline-gap: 0.4rem;
  }

  .timeline::before { left: var(--timeline-axis); }
  .timeline__item { grid-template-columns: 1fr; gap: 0.4rem; }
  .timeline__year { text-align: left; padding: 0 0 0 1.6rem; }
  .timeline__item::before { top: 0.35rem; }
  .timeline__item::after { top: calc(0.35rem + 3px); }
  .timeline__item { padding-left: 1.6rem; }
}

/* --------------------------------------------------------------------------
   6. MÜFREDAT / EĞİTİM (Fame Akademi) — tıklayınca açılır
   -------------------------------------------------------------------------- */
.curriculum-grid {
  display: grid;
  grid-template-columns: minmax(300px, 0.86fr) minmax(0, 1.44fr);
  gap: 1.4rem;
  align-items: start;
}

.edu-card {
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 18% 12%, rgba(213, 179, 107, 0.08), transparent 28%),
    linear-gradient(160deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.012));
  overflow: hidden;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease),
    background var(--dur) var(--ease), box-shadow var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.edu-card.is-open {
  border-color: var(--gold-line);
  background:
    linear-gradient(180deg, rgba(213, 179, 107, 0.075), transparent 34%),
    linear-gradient(160deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.014));
  box-shadow: 0 18px 54px -34px rgba(213, 179, 107, 0.5);
}

.edu-card:not(.is-open):hover {
  transform: translateY(-4px);
  border-color: rgba(213, 179, 107, 0.18);
}

.edu-card__header {
  width: 100%;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1.1rem;
  padding: 1.6rem 1.7rem;
  background: transparent;
  border: 0;
  text-align: left;
  cursor: pointer;
  color: inherit;
  transition: background var(--dur) var(--ease);
}

.edu-card.is-open .edu-card__header {
  background: rgba(4, 5, 11, 0.18);
}

.edu-card__icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--gold-soft);
  border: 1px solid var(--gold-line);
  color: var(--gold);
  font-size: 1.5rem;
}

.edu-icon-svg,
.edu-detail__icon svg {
  width: 1.35rem;
  height: 1.35rem;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.edu-card__head-text { display: grid; gap: 0.3rem; }

.edu-card__title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--white);
}

.edu-card__summary {
  font-size: var(--text-sm);
  color: var(--text-dim);
}

.edu-card__chevron {
  color: var(--gold);
  transition: transform var(--dur) var(--ease), color var(--dur) var(--ease);
  flex-shrink: 0;
}

.edu-card.is-open .edu-card__chevron { transform: translateX(2px) rotate(-90deg); }

.edu-card__body {
  display: none;
}

.edu-card__body-inner {
  overflow: hidden;
}

.edu-card__content {
  padding: 1.45rem 1.7rem 1.7rem;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(4, 5, 11, 0.18), transparent);
}

.edu-detail__content .edu-card__content {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.15rem, 2vw, 1.7rem);
  align-items: start;
}

.edu-card__content ol {
  list-style: none;
  counter-reset: item;
  display: grid;
  gap: 0.55rem;
}

.edu-card__content ol li {
  counter-increment: item;
  position: relative;
  padding-left: 2.1rem;
  color: var(--text);
  font-size: var(--text-sm);
}

.edu-card__content .level-2 > li { padding-left: 2.6rem; }
.edu-card__content .level-3 > li { padding-left: 3.1rem; }

.edu-card__content ol li::before {
  content: counters(item, ".") ".";
  position: absolute;
  left: 0;
  top: 0.05em;
  color: var(--gold);
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.edu-card__content ol ol {
  margin-top: 0.55rem;
  padding-left: 0.4rem;
}

.edu-card__content .level-2 li,
.edu-card__content .level-3 li { color: var(--text-dim); }

.edu-card__contact {
  margin-top: 0;
  padding: 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(7, 9, 18, 0.42);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  gap: 1rem;
}

.edu-card__contact p {
  font-size: var(--text-sm);
  color: var(--text-dim);
}

@media (max-width: 860px) {
  .edu-detail__content .edu-card__content {
    grid-template-columns: 1fr;
  }

  .edu-card__contact {
    margin-top: 0.6rem;
  }
}

.edu-detail-panel {
  position: sticky;
  top: 104px;
  grid-column: 2;
  grid-row: 1 / span 12;
  max-height: calc(100vh - 128px);
  overflow: auto;
  border: 1px solid var(--gold-line);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at 16% 0%, rgba(213, 179, 107, 0.1), transparent 34%),
    linear-gradient(160deg, rgba(17, 21, 46, 0.82), rgba(4, 5, 11, 0.88));
  box-shadow: 0 28px 78px -42px rgba(0, 0, 0, 0.8);
}

.edu-detail__header {
  position: sticky;
  top: 0;
  z-index: 1;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1.15rem;
  align-items: center;
  padding: clamp(1.35rem, 2.4vw, 2rem) clamp(1.35rem, 2.8vw, 2.2rem);
  border-bottom: 1px solid var(--line);
  background: rgba(7, 9, 18, 0.82);
  backdrop-filter: blur(14px);
}

.edu-detail__icon {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  border-radius: 16px;
  border: 1px solid var(--gold-line);
  background: var(--gold-soft);
  color: var(--gold);
  font-size: 1.6rem;
}

.edu-detail__eyebrow {
  font-family: var(--font-display);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.35rem;
}

.edu-detail__title {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 1rem + 0.7vw, 1.65rem);
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--white);
}

.edu-detail__summary {
  max-width: 760px;
  margin-top: 0.35rem;
  color: var(--text-dim);
  font-size: var(--text-sm);
}

.edu-detail__content {
  padding: 0;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.edu-detail-panel.is-ready .edu-detail__content {
  opacity: 1;
  transform: translateY(0);
}

.edu-detail__content .edu-card__content {
  border-top: 0;
  background: transparent;
  padding: clamp(1.35rem, 2.8vw, 2.2rem);
}

@media (max-width: 980px) {
  .curriculum-grid {
    grid-template-columns: 1fr;
  }

  .edu-detail-panel {
    position: static;
    grid-column: 1;
    grid-row: auto;
    max-height: none;
  }
}

@media (max-width: 640px) {
  .edu-detail__header {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   7. SPONSORLUKLARIMIZ — büyük afiş slider (hover'da büyür)
   -------------------------------------------------------------------------- */
.sponsor-rail {
  padding-block: clamp(0.8rem, 1.4vw, 1.4rem);
}

.sponsor-rail .marquee__track {
  align-items: center;
  gap: clamp(1.4rem, 2vw, 2.4rem);
}

.sponsor-card {
  flex-shrink: 0;
  width: clamp(210px, 15vw, 250px);
  aspect-ratio: 736 / 1440;
  border-radius: 12px;
  overflow: visible;
  border: 0;
  background: transparent;
  cursor: zoom-in;
  transition: transform var(--dur) var(--ease), filter var(--dur) var(--ease);
}

.sponsor-card img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  border-radius: inherit;
  transition: transform var(--dur) var(--ease);
}

.sponsor-card:hover {
  transform: scale(1.045);
  filter: drop-shadow(0 18px 28px rgba(213, 179, 107, 0.16));
  z-index: 2;
}

.sponsor-card:hover img { transform: none; }

@media (max-width: 640px) {
  .sponsor-card {
    width: clamp(170px, 54vw, 220px);
  }
}

.sponsor-lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: grid;
  place-items: center;
  padding: clamp(1rem, 4vw, 3rem);
  background: rgba(4, 5, 11, 0.86);
  backdrop-filter: blur(12px);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur) var(--ease);
}

.sponsor-lightbox.is-open {
  opacity: 1;
  pointer-events: auto;
}

body.is-lightbox-open {
  overflow: hidden;
}

.sponsor-lightbox__frame {
  position: relative;
  display: grid;
  max-width: min(92vw, 760px);
  max-height: 88vh;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.62);
  overflow: hidden;
  transform: scale(0.96);
  transition: transform var(--dur) var(--ease);
}

.sponsor-lightbox.is-open .sponsor-lightbox__frame {
  transform: scale(1);
}

.sponsor-lightbox__image {
  display: block;
  width: auto;
  max-width: 100%;
  height: auto;
  max-height: 88vh;
  object-fit: contain;
}

.sponsor-lightbox__close {
  position: absolute;
  top: 0.8rem;
  right: 0.8rem;
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(245, 221, 151, 0.28);
  border-radius: 50%;
  background: rgba(7, 9, 18, 0.78);
  color: var(--gold-bright);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease),
    transform var(--dur-fast) var(--ease);
}

.sponsor-lightbox__close:hover {
  transform: scale(1.06);
  background: rgba(213, 179, 107, 0.16);
  color: var(--white);
}

/* --------------------------------------------------------------------------
   8. İLETİŞİM
   -------------------------------------------------------------------------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 2.5rem;
  align-items: stretch;
}

.contact-info { display: grid; gap: 1rem; align-content: start; }

.info-item {
  display: flex;
  gap: 1.1rem;
  align-items: flex-start;
  padding: 1.4rem 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

a.info-item:hover {
  transform: translateX(5px);
  border-color: var(--gold-line);
}

.info-item__icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--gold-soft);
  border: 1px solid var(--gold-line);
  color: var(--gold);
}

.info-item__icon svg { width: 22px; height: 22px; }

.info-item h4 {
  font-family: var(--font-display);
  font-size: 0.72rem;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.3rem;
}

.info-item p { color: var(--text-dim); font-size: var(--text-sm); }

.contact-map {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  min-height: 360px;
}

.contact-map iframe { width: 100%; height: 100%; min-height: 360px; border: 0; filter: grayscale(0.3) contrast(1.05); }

/* CV kutusu */
.cv-box {
  margin-top: 2.5rem;
  display: grid;
  grid-template-columns: minmax(240px, 0.74fr) minmax(0, 1.26fr);
  align-items: start;
  gap: 2rem;
  padding: clamp(1.8rem, 1rem + 2vw, 2.8rem);
  border: 1px solid var(--gold-line);
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--gold-soft), rgba(255, 255, 255, 0.01));
}

.cv-box h3 {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
}

.cv-box p { color: var(--text-dim); font-size: var(--text-sm); max-width: 52ch; }

.career-actions {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) minmax(240px, 0.9fr);
  gap: 1rem;
  align-items: start;
}

.cv-form,
.application-form-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(7, 9, 18, 0.34);
}

.cv-form .btn {
  align-self: flex-start;
}

.application-form-card .btn {
  align-self: flex-start;
}

.career-fields {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.career-fields label {
  display: grid;
  gap: 0.35rem;
}

.career-fields span,
.kvkk-check {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--gold);
}

.career-fields input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(4, 5, 11, 0.44);
  color: var(--white);
  padding: 0.78rem 0.85rem;
  font: inherit;
  outline: none;
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}

.career-fields input:focus {
  border-color: var(--gold-line);
  box-shadow: 0 0 0 3px rgba(213, 179, 107, 0.1);
}

.career-mail-note {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  align-items: start;
  padding: 1rem;
  border: 1px dashed var(--gold-line);
  border-radius: var(--radius);
  background: rgba(213, 179, 107, 0.08);
}

.career-mail-note svg {
  width: 26px;
  height: 26px;
  color: var(--gold);
}

.career-mail-note p {
  margin: 0;
  color: var(--text-dim);
  font-size: var(--text-sm);
}

.application-form-card h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--white);
  margin-bottom: 0.35rem;
}

.kvkk-check {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.65rem;
  align-items: start;
  line-height: 1.45;
  color: var(--text-dim);
  text-transform: none;
  letter-spacing: 0;
}

.kvkk-check input {
  width: 18px;
  height: 18px;
  accent-color: var(--gold);
  margin-top: 0.1rem;
}

.kvkk-disclosure {
  border: 1px solid rgba(213, 179, 107, 0.16);
  border-radius: 10px;
  background: rgba(4, 5, 11, 0.32);
}

.kvkk-disclosure summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  padding: 0.72rem 0.85rem;
  color: var(--gold);
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  list-style: none;
}

.kvkk-disclosure summary::-webkit-details-marker {
  display: none;
}

.kvkk-disclosure summary::after {
  content: "+";
  flex: 0 0 auto;
  color: var(--gold-bright);
  font-size: 1rem;
  line-height: 1;
  transition: transform var(--dur-fast) var(--ease);
}

.kvkk-disclosure[open] summary::after {
  content: "−";
  transform: rotate(180deg);
}

.kvkk-disclosure p {
  margin: 0;
  padding: 0 0.85rem 0.85rem;
  color: var(--text-dim);
  font-size: var(--text-xs);
  line-height: 1.65;
}

.btn.is-disabled {
  opacity: 0.45;
  pointer-events: none;
  cursor: not-allowed;
}

.form-download-note {
  color: var(--text-faint);
  font-size: var(--text-xs);
}

@media (max-width: 820px) {
  .contact-grid { grid-template-columns: 1fr; }
  .cv-box { grid-template-columns: 1fr; }
  .career-actions { grid-template-columns: 1fr; }
  .career-fields { grid-template-columns: 1fr; }
}

/* --------------------------------------------------------------------------
   9. PROJELER — kart ızgarası (baklava değil)
   -------------------------------------------------------------------------- */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

.project-card {
  position: relative;
  padding: 2rem 1.8rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--surface-2), rgba(255, 255, 255, 0.01));
  overflow: hidden;
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease),
    box-shadow var(--dur) var(--ease);
}

.project-card--wide { grid-column: span 2; }

.project-card:hover {
  transform: translateY(-8px);
  border-color: var(--gold-line);
  box-shadow: var(--shadow-gold);
}

.project-card__index {
  position: absolute;
  top: 1.4rem;
  right: 1.6rem;
  font-family: var(--font-display);
  font-size: 2.6rem;
  font-weight: 800;
  color: rgba(213, 179, 107, 0.1);
  line-height: 1;
}

.project-card h3 {
  font-family: var(--font-display);
  font-size: var(--text-h3);
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.9rem;
  max-width: 80%;
}

.project-card p { color: var(--text-dim); font-size: var(--text-sm); margin-bottom: 0.8rem; }
.project-card p:last-child { margin-bottom: 0; }

@media (max-width: 900px) {
  .projects-grid { grid-template-columns: 1fr 1fr; }
  .project-card--wide { grid-column: span 2; }
}

@media (max-width: 600px) {
  .projects-grid { grid-template-columns: 1fr; }
  .project-card--wide { grid-column: span 1; }
}