/* ==========================================================================
   KAPSÜL YAVUZ HAN — RoboBoat 2027 Team Website
   Theme: gece laciverti / deniz mavisi / metalik altın / turkuaz
   ========================================================================== */

:root {
  --bg: #0a1526;            /* gece laciverti — ana arka plan */
  --bg-alt: #0c1c31;        /* laciverti (açık ton) — alternatif bölümler */
  --card: #123352;          /* deniz mavisi — kartlar */
  --card-deep: #0f2a46;     /* deniz mavisi (koyu ton) */
  --border: #1d4468;        /* deniz mavisi kenarlık */
  --border-strong: #2a5a85;
  --gold: #c9a227;          /* metalik altın */
  --gold-bright: #e3bd4f;
  --gold-deep: #a07d14;
  --gold-soft: rgba(201, 162, 39, 0.12);
  --teal: #2ec4b6;          /* turkuaz — teknik / etkileşim */
  --teal-soft: rgba(46, 196, 182, 0.12);
  --text: #f4f0e6;          /* kırık beyaz */
  --muted: #b8c4d4;
  --muted-2: #7f8fa3;
  --radius: 10px;
  --font-head: "Space Grotesk", "Segoe UI", Arial, sans-serif;
  --font-body: "Inter", "Segoe UI", Arial, sans-serif;
  --maxw: 1140px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

::selection { background: var(--gold); color: var(--bg); }

.container { width: min(var(--maxw), 92%); margin: 0 auto; }

.section { padding: 88px 0; }
.section-alt {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.15; font-weight: 700; }

.accent { color: var(--gold); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--gold); font-family: var(--font-head);
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.22em;
  text-transform: uppercase; margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--gold); flex: 0 0 auto; }

.section-head { margin-bottom: 44px; }
.section-title { font-size: clamp(1.7rem, 3.4vw, 2.4rem); margin-bottom: 12px; }
.section-lead { color: var(--muted); max-width: 660px; }

.note { color: var(--muted-2); font-size: 0.82rem; margin-top: 14px; font-style: italic; }

/* --------------------------------------------------------------------------
   Navigation — gece laciverti üst menü
   -------------------------------------------------------------------------- */

.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 21, 38, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 74px; gap: 24px;
}

.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }

.brand-mark {
  width: 46px; height: 46px; flex: 0 0 auto;
  object-fit: contain;
  display: block;
}

.brand-text { display: block; min-width: 0; }
.brand-name {
  display: block; font-family: var(--font-head); font-weight: 700;
  letter-spacing: 0.06em; font-size: 0.95rem; white-space: nowrap;
}
.brand-sub {
  display: block; color: var(--muted-2); font-size: 0.66rem;
  letter-spacing: 0.14em; text-transform: uppercase; white-space: nowrap;
}

.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links a:not(.btn) {
  color: var(--muted); font-size: 0.88rem; font-weight: 500;
  padding: 6px 0; border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.nav-links a:not(.btn):hover { color: var(--teal); }
.nav-links a.active:not(.btn) { color: var(--gold); border-bottom-color: var(--gold); }

.hamburger {
  display: none; background: none; border: 1px solid var(--border);
  border-radius: 6px; padding: 9px 11px; cursor: pointer;
}
.hamburger span { display: block; width: 20px; height: 2px; background: var(--text); margin: 4px 0; transition: 0.2s; }

/* --------------------------------------------------------------------------
   Hero (home) & page headers (subpages)
   -------------------------------------------------------------------------- */

.hero {
  position: relative; overflow: hidden;
  padding: 108px 0 96px;
  background:
    radial-gradient(ellipse 55% 45% at 78% 12%, rgba(201, 162, 39, 0.14), transparent 62%),
    radial-gradient(ellipse 40% 35% at 12% 88%, rgba(46, 196, 182, 0.10), transparent 60%),
    linear-gradient(rgba(244, 240, 230, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244, 240, 230, 0.03) 1px, transparent 1px),
    var(--bg);
  background-size: auto, auto, 46px 46px, 46px 46px, auto;
  border-bottom: 1px solid var(--border);
}

.hero h1 { font-size: clamp(2.3rem, 5.4vw, 3.9rem); margin: 26px 0 20px; max-width: 880px; }
.hero-lead { color: var(--muted); font-size: 1.08rem; max-width: 640px; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-badges { display: flex; gap: 10px; flex-wrap: wrap; }
.badge {
  border: 1px solid var(--border); background: rgba(18, 51, 82, 0.85);
  padding: 7px 14px; border-radius: 999px;
  font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--muted); font-family: var(--font-head); font-weight: 600;
}
.badge-gold { border-color: rgba(201, 162, 39, 0.55); color: var(--gold); background: var(--gold-soft); }

.page-head {
  position: relative; overflow: hidden;
  padding: 88px 0 66px;
  background:
    radial-gradient(ellipse 50% 60% at 85% 0%, rgba(201, 162, 39, 0.11), transparent 60%),
    radial-gradient(ellipse 40% 45% at 8% 100%, rgba(46, 196, 182, 0.08), transparent 60%),
    linear-gradient(rgba(244, 240, 230, 0.02) 1px, transparent 1px),
    var(--bg);
  background-size: auto, auto, 46px 46px, auto;
  border-bottom: 1px solid var(--border);
}
.page-head .crumb {
  color: var(--muted-2); font-family: var(--font-head);
  font-size: 0.75rem; letter-spacing: 0.24em; text-transform: uppercase;
  display: block; margin-bottom: 16px;
}
.page-head h1 { font-size: clamp(2rem, 4.5vw, 3rem); max-width: 820px; }
.page-head p { color: var(--muted); max-width: 660px; margin-top: 16px; }

/* Laciverti doku bandı */
.carbon-band {
  height: 14px;
  border-top: 1px solid rgba(201, 162, 39, 0.4);
  border-bottom: 1px solid var(--border);
  background-color: #0c1a2e;
  background-image:
    radial-gradient(rgba(244, 240, 230, 0.06) 15%, transparent 16%),
    radial-gradient(rgba(244, 240, 230, 0.06) 15%, transparent 16%),
    radial-gradient(rgba(0, 0, 0, 0.9) 15%, transparent 17%),
    radial-gradient(rgba(0, 0, 0, 0.9) 15%, transparent 17%);
  background-size: 14px 14px;
  background-position: 0 0, 7px 7px, 0 1px, 7px 8px;
}

/* --------------------------------------------------------------------------
   Buttons — metalik altın
   -------------------------------------------------------------------------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-head); font-weight: 600; font-size: 0.9rem;
  letter-spacing: 0.04em; padding: 13px 26px; border-radius: 6px;
  border: 1px solid transparent; transition: 0.2s; cursor: pointer;
}
.btn-primary { background: linear-gradient(140deg, var(--gold-bright), var(--gold)); color: var(--bg); }
.btn-primary:hover { background: linear-gradient(140deg, #f0cd6a, var(--gold-bright)); transform: translateY(-1px); }
.btn-ghost { border-color: var(--border-strong); color: var(--text); background: transparent; }
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); }
.btn-small { padding: 8px 16px; font-size: 0.8rem; }

/* --------------------------------------------------------------------------
   Stat tiles
   -------------------------------------------------------------------------- */

.stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; background: var(--card);
}
.stat { padding: 30px 26px; }
.stat:not(:first-child) { border-left: 1px solid var(--border); }
.stat-num {
  font-family: var(--font-head); font-size: 2.1rem; font-weight: 700;
  color: var(--gold); line-height: 1.1;
}
.stat-label { color: var(--muted); font-size: 0.88rem; margin-top: 6px; }

/* --------------------------------------------------------------------------
   Grids & cards — deniz mavisi
   -------------------------------------------------------------------------- */

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.tech-card {
  position: relative; background: var(--card);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: 28px; transition: border-color 0.2s, transform 0.2s;
}
.tech-card:hover { border-color: rgba(46, 196, 182, 0.55); transform: translateY(-3px); }
.tech-card::before, .tech-card::after {
  content: ""; position: absolute; width: 16px; height: 16px; transition: 0.2s;
}
.tech-card::before {
  top: -1px; left: -1px;
  border-top: 2px solid var(--teal); border-left: 2px solid var(--teal);
  border-top-left-radius: var(--radius);
}
.tech-card::after {
  bottom: -1px; right: -1px;
  border-bottom: 2px solid var(--teal); border-right: 2px solid var(--teal);
  border-bottom-right-radius: var(--radius);
}
.tech-card h3 { font-size: 1.08rem; margin-bottom: 8px; }
.tech-card p { color: var(--muted); font-size: 0.92rem; }
.card-num {
  display: block; color: var(--teal); font-family: var(--font-head);
  font-size: 0.75rem; font-weight: 600; letter-spacing: 0.16em;
  margin-bottom: 14px; text-transform: uppercase;
}

.result-rank {
  font-family: var(--font-head); font-size: 3rem; font-weight: 700;
  color: var(--gold); line-height: 1; margin: 6px 0 10px;
}

.podium-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.podium-grid .sauvc-card { grid-column: 1; grid-row: 1; }
.podium-grid .njord-card { grid-column: 2; grid-row: 1; }
.podium-grid .tekno-card { grid-column: 3; grid-row: 1; }
.podium-grid .award-row { grid-column: 1 / -1; grid-row: 2; }

.award-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}
.award-photo {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--card);
}
.award-photo img {
  width: 100%;
  height: auto;
}
.award-photo figcaption {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 14px 18px;
  color: var(--muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
}
.award-photo figcaption span {
  font-family: var(--font-head);
  color: var(--gold);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* --------------------------------------------------------------------------
   Split layout, lists, placeholders
   -------------------------------------------------------------------------- */

.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }

.check-list { list-style: none; margin: 22px 0 30px; display: grid; gap: 10px; }
.check-list li { padding-left: 28px; position: relative; color: var(--muted); font-size: 0.95rem; }
.check-list li::before { content: "▸"; position: absolute; left: 0; color: var(--teal); }

.ph {
  border: 1px dashed var(--border-strong); border-radius: var(--radius);
  background: repeating-linear-gradient(45deg, #102a45 0 14px, #0d233b 14px 28px);
  display: flex; align-items: center; justify-content: center;
  color: var(--muted-2); font-family: var(--font-head);
  font-size: 0.78rem; letter-spacing: 0.14em; text-transform: uppercase;
  text-align: center; padding: 20px; min-height: 240px;
}
.ph-large { min-height: 340px; }

/* --------------------------------------------------------------------------
   Tables
   -------------------------------------------------------------------------- */

.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; background: var(--card); font-size: 0.9rem; }
th {
  text-align: left; font-family: var(--font-head); font-size: 0.72rem;
  letter-spacing: 0.12em; text-transform: uppercase; color: var(--teal);
  padding: 14px 16px; border-bottom: 1px solid var(--border);
  background: var(--card-deep); white-space: nowrap;
}
td { padding: 12px 16px; border-bottom: 1px solid var(--border); color: var(--muted); }
td:first-child { color: var(--text); font-weight: 500; }
tr:last-child td { border-bottom: none; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; }

/* --------------------------------------------------------------------------
   Timeline
   -------------------------------------------------------------------------- */

.timeline { position: relative; margin-left: 8px; padding-left: 34px; border-left: 2px solid var(--border); }
.tl-item { position: relative; padding-bottom: 36px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ""; position: absolute; left: -41px; top: 6px;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--bg); border: 3px solid var(--teal);
}
.tl-date {
  font-family: var(--font-head); color: var(--gold);
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; margin-bottom: 4px;
}
.tl-item h3 { font-size: 1.05rem; margin-bottom: 4px; }
.tl-item p { color: var(--muted); font-size: 0.92rem; max-width: 560px; }

/* --------------------------------------------------------------------------
   CTA band — metalik altın
   -------------------------------------------------------------------------- */

.cta-band {
  background: linear-gradient(135deg, var(--gold-bright) 0%, var(--gold-deep) 100%);
  color: var(--bg); padding: 64px 0;
}
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta-inner h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin-bottom: 6px; }
.cta-inner p { max-width: 520px; font-weight: 500; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.cta-band .btn-primary { background: var(--bg); color: var(--text); }
.cta-band .btn-primary:hover { background: var(--card); }
.cta-band .btn-ghost { border-color: rgba(10, 21, 38, 0.5); color: var(--bg); }
.cta-band .btn-ghost:hover { border-color: var(--bg); }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.footer { border-top: 1px solid var(--border); background: var(--bg-alt); margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; padding: 56px 0 44px; }
.footer-brand p { color: var(--muted); font-size: 0.9rem; margin-top: 18px; max-width: 380px; }
.footer h4 {
  font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--text); margin-bottom: 16px;
}
.footer-grid a:not(.brand) { color: var(--muted); display: block; padding: 4px 0; font-size: 0.9rem; }
.footer-grid a:not(.brand):hover { color: var(--teal); }
.footer-bottom {
  border-top: 1px solid var(--border); padding: 20px 0;
  color: var(--muted-2); font-size: 0.8rem;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px;
}

/* --------------------------------------------------------------------------
   Form
   -------------------------------------------------------------------------- */

.form { display: grid; gap: 16px; }
.form input, .form textarea {
  width: 100%; background: var(--bg); border: 1px solid var(--border);
  border-radius: 6px; padding: 13px 16px; color: var(--text);
  font-family: inherit; font-size: 0.92rem; transition: border-color 0.2s;
}
.form input:focus, .form textarea:focus { outline: none; border-color: var(--teal); }
.form input::placeholder, .form textarea::placeholder { color: var(--muted-2); }

/* --------------------------------------------------------------------------
   Sponsor tiers
   -------------------------------------------------------------------------- */

.tier-gold { border-color: rgba(201, 162, 39, 0.55); background: linear-gradient(160deg, rgba(201, 162, 39, 0.1), var(--card) 45%); }
.tier-tag {
  display: inline-block; font-family: var(--font-head); font-size: 0.72rem;
  font-weight: 700; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--gold); margin-bottom: 12px;
}

/* --------------------------------------------------------------------------
   Reveal animation
   -------------------------------------------------------------------------- */

.reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */

@media (max-width: 960px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: none; }
  .stat:nth-child(n + 3) { border-top: 1px solid var(--border); }
  .split { grid-template-columns: 1fr; gap: 32px; }

  .hamburger { display: block; }
  .nav-links {
    position: absolute; top: 74px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(10, 21, 38, 0.98);
    border-bottom: 1px solid var(--border);
    max-height: 0; overflow: hidden; transition: max-height 0.3s ease;
  }
  .nav-links.open { max-height: 520px; }
  .nav-links a:not(.btn) { padding: 15px 20px; border-bottom: 1px solid var(--border); }
  .nav-links .btn { margin: 16px 20px; }
}

@media (max-width: 680px) {
  .grid-3, .grid-2, .podium-grid { grid-template-columns: 1fr; }
  .podium-grid .sauvc-card { grid-column: 1; grid-row: 1; }
  .podium-grid .award-row { display: contents; }
  .podium-grid .sauvc-photo { grid-column: 1; grid-row: 2; }
  .podium-grid .njord-card { grid-column: 1; grid-row: 3; }
  .podium-grid .njord-photo { grid-column: 1; grid-row: 4; }
  .podium-grid .tekno-card { grid-column: 1; grid-row: 5; }
  .podium-grid .tekno-photo { grid-column: 1; grid-row: 6; }
  .section { padding: 64px 0; }
  .stats { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .brand-sub { display: none; }
}