/* ============================================================
   T-CORPUS — TIMAV Digital Humanities Center
   Tasarım sistemi. Marka: lacivert #224785, altın #AD8340
   (renkler logodan örneklendi). RTL desteği mantıksal
   özellikler + [dir=rtl] geçersiz kılmalarıyla.
   ============================================================ */

:root {
  --navy: #224785;
  --navy-deep: #17325f;
  --navy-ink: #0f2344;
  --gold: #AD8340;
  --gold-soft: #c9a86b;
  --gold-tint: #f6efe2;
  --ink: #1c2433;
  --muted: #5b6675;
  --line: #e4e8ef;
  --paper: #ffffff;
  --cream: #faf8f4;
  --blue-tint: #eef2f9;
  --radius: 14px;
  --maxw: 1180px;
  --sans: "Manrope", "IBM Plex Sans Arabic", system-ui, -apple-system, "Segoe UI", sans-serif;
  --shadow: 0 2px 16px rgba(23, 50, 95, .07);
  --shadow-lg: 0 12px 40px rgba(23, 50, 95, .13);
}

[dir="rtl"] {
  --sans: "IBM Plex Sans Arabic", "Manrope", system-ui, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
[dir="rtl"] body { line-height: 1.9; }

img { max-width: 100%; display: block; }
a { color: var(--navy); text-decoration: none; }
a:hover { color: var(--gold); }

.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: 24px; }

/* ---------------- header ---------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header .wrap {
  display: flex; align-items: center; gap: 28px;
  height: 72px;
}
.brand img { height: 44px; width: auto; }
.nav { display: flex; gap: 22px; margin-inline-start: auto; align-items: center; flex-wrap: wrap; }
.nav a {
  font-size: 14px; font-weight: 600; color: var(--ink);
  padding: 6px 2px; border-bottom: 2px solid transparent;
}
.nav a:hover { color: var(--navy); border-bottom-color: var(--gold); }
.langs { display: flex; gap: 4px; margin-inline-start: 18px; }
.langs a {
  font-size: 12.5px; font-weight: 700; padding: 5px 10px;
  border-radius: 8px; color: var(--muted); border: 1px solid transparent;
}
.langs a.active { background: var(--navy); color: #fff; }
.langs a:not(.active):hover { border-color: var(--line); color: var(--navy); }

/* mobile nav */
.nav-toggle { display: none; }
@media (max-width: 960px) {
  .nav { display: none; }
  .nav.open {
    display: flex; position: absolute; inset-inline: 0; top: 72px;
    flex-direction: column; background: #fff; padding: 18px 24px 22px;
    border-bottom: 1px solid var(--line); box-shadow: var(--shadow-lg);
  }
  .nav-toggle {
    display: block; margin-inline-start: auto; background: none; border: 0;
    font-size: 26px; color: var(--navy); cursor: pointer;
  }
  .langs { margin-inline-start: 0; }
}

/* ---------------- hero ---------------- */
.hero {
  background:
    radial-gradient(1100px 500px at 85% -10%, rgba(173,131,64,.16), transparent 60%),
    linear-gradient(160deg, var(--navy-ink) 0%, var(--navy-deep) 55%, var(--navy) 100%);
  color: #fff;
  overflow: hidden;
  position: relative;
}
.hero-inner {
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px;
  align-items: center; padding-block: 92px 84px;
}
.hero .kicker {
  color: var(--gold-soft); font-weight: 800; letter-spacing: .22em;
  text-transform: uppercase; font-size: 12.5px; margin-bottom: 18px;
}
[dir="rtl"] .hero .kicker { letter-spacing: .06em; }
.hero h1 {
  font-size: clamp(34px, 4.6vw, 56px); line-height: 1.12;
  font-weight: 800; margin-bottom: 22px; max-width: 15ch;
}
.hero h1 em { color: var(--gold-soft); font-style: normal; }
.hero p.lead {
  color: #c9d4e6; font-size: 18px; max-width: 52ch; margin-bottom: 34px;
}
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block; font-weight: 700; font-size: 15px;
  padding: 13px 26px; border-radius: 12px; transition: transform .15s;
}
.btn:hover { transform: translateY(-2px); }
.btn-gold { background: var(--gold); color: #fff; }
.btn-gold:hover { color: #fff; background: #bd914b; }
.btn-ghost { border: 1.5px solid rgba(255,255,255,.4); color: #fff; }
.btn-ghost:hover { border-color: var(--gold-soft); color: var(--gold-soft); }
.hero-mark { display: flex; justify-content: center; }
.hero-mark img { width: min(360px, 80%); border-radius: 28px;
  box-shadow: 0 24px 70px rgba(0,0,0,.45); outline: 1px solid rgba(255,255,255,.14); }
.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  border-top: 1px solid rgba(255,255,255,.14);
  padding-block: 26px 34px;
}
.hero-stats div { text-align: center; }
.hero-stats b { display: block; font-size: 30px; font-weight: 800; color: var(--gold-soft); }
.hero-stats span { font-size: 12.5px; color: #aebbd2; }
@media (max-width: 880px) {
  .hero-inner { grid-template-columns: 1fr; padding-block: 60px 48px; }
  .hero-mark { order: -1; }
  .hero-mark img { width: 200px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
}

/* ---------------- bölümler ---------------- */
section { padding-block: 84px; }
section.alt { background: var(--cream); }
.sec-head { max-width: 720px; margin-bottom: 46px; }
.sec-head .kicker {
  color: var(--gold); font-weight: 800; letter-spacing: .2em;
  text-transform: uppercase; font-size: 12px; margin-bottom: 10px;
}
[dir="rtl"] .sec-head .kicker { letter-spacing: .05em; }
.sec-head h2 { font-size: clamp(26px, 3.2vw, 38px); font-weight: 800; color: var(--navy-ink); line-height: 1.2; }
.sec-head p { color: var(--muted); margin-top: 14px; font-size: 16.5px; }

/* proje filtreleri */
.filters { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 30px; }
.filters button {
  font-family: inherit; font-size: 13.5px; font-weight: 700;
  padding: 9px 18px; border-radius: 999px; cursor: pointer;
  border: 1.5px solid var(--line); background: #fff; color: var(--muted);
  transition: all .15s;
}
.filters button:hover { border-color: var(--gold); color: var(--gold); }
.filters button.active { background: var(--navy); border-color: var(--navy); color: #fff; }

/* kart ızgarası */
.grid { display: grid; gap: 22px; }
.grid.g3 { grid-template-columns: repeat(3, 1fr); }
.grid.g2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 980px) { .grid.g3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 660px) { .grid.g3, .grid.g2 { grid-template-columns: 1fr; } }

.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 26px; display: flex; flex-direction: column; gap: 12px;
  transition: transform .18s, box-shadow .18s;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card h3 { font-size: 18px; font-weight: 800; color: var(--navy-ink); }
.card h3 a { color: inherit; }
.card h3 a:hover { color: var(--gold); }
.card p { font-size: 14px; color: var(--muted); flex: 1; }
.card .meta { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.badge {
  font-size: 11px; font-weight: 800; letter-spacing: .04em;
  padding: 4px 10px; border-radius: 999px; text-transform: uppercase;
}
[dir="rtl"] .badge { letter-spacing: 0; }
.badge.live  { background: #e5f3ea; color: #17683b; }
.badge.beta  { background: var(--gold-tint); color: #8a6420; }
.badge.dev   { background: var(--blue-tint); color: var(--navy); }
.badge.arch  { background: #eef0f3; color: #6a7686; }
.tag { font-size: 12px; color: var(--muted); }
.card .num { font-size: 13px; color: var(--gold); font-weight: 700; }

/* amiral kartları */
.flagship {
  display: grid; grid-template-columns: 1fr 1fr; gap: 26px;
}
@media (max-width: 880px) { .flagship { grid-template-columns: 1fr; } }
.flag-card {
  border-radius: var(--radius); padding: 34px; color: #fff;
  background: linear-gradient(150deg, var(--navy-ink), var(--navy));
  display: flex; flex-direction: column; gap: 14px;
  border: 1px solid rgba(255,255,255,.06);
}
.flag-card.goldish { background: linear-gradient(150deg, #6d5120, var(--gold)); }
.flag-card .kicker { color: rgba(255,255,255,.75); font-size: 11.5px; font-weight: 800; letter-spacing: .18em; text-transform: uppercase; }
[dir="rtl"] .flag-card .kicker { letter-spacing: .04em; }
.flag-card h3 { font-size: 24px; font-weight: 800; }
.flag-card p { color: rgba(255,255,255,.85); font-size: 14.5px; flex: 1; }
.flag-card .stats { display: flex; gap: 26px; flex-wrap: wrap; margin-top: 6px; }
.flag-card .stats b { display: block; font-size: 22px; font-weight: 800; }
.flag-card .stats span { font-size: 12px; color: rgba(255,255,255,.72); }
.flag-card .btn { align-self: flex-start; margin-top: 12px; background: rgba(255,255,255,.14); color: #fff; font-size: 14px; padding: 10px 20px; }
.flag-card .btn:hover { background: rgba(255,255,255,.26); }

/* araştırma hattı listesi */
.rows { display: flex; flex-direction: column; gap: 14px; }
.row {
  display: grid; grid-template-columns: 220px 1fr auto; gap: 20px;
  align-items: center; background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 20px 26px;
}
.row b { color: var(--navy-ink); font-size: 15.5px; }
.row p { font-size: 13.5px; color: var(--muted); }
@media (max-width: 780px) { .row { grid-template-columns: 1fr; gap: 8px; } }

/* yöntem ilkeleri */
.principles { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 960px) { .principles { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .principles { grid-template-columns: 1fr; } }
.principle { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.principle .no {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--gold-tint); color: var(--gold);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; margin-bottom: 14px; font-size: 16px;
}
.principle h3 { font-size: 15.5px; font-weight: 800; color: var(--navy-ink); margin-bottom: 6px; }
.principle p { font-size: 13.5px; color: var(--muted); }

/* haber şeridi */
.news { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
@media (max-width: 880px) { .news { grid-template-columns: 1fr; } }
.news article { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.news time { font-size: 12.5px; color: var(--gold); font-weight: 700; }
.news h3 { font-size: 16px; font-weight: 800; color: var(--navy-ink); margin: 8px 0; }
.news p { font-size: 13.5px; color: var(--muted); }

/* iletişim + footer */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
@media (max-width: 780px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-grid address { font-style: normal; color: var(--muted); font-size: 15px; line-height: 1.9; }
.contact-grid address b { color: var(--navy-ink); }

.site-footer {
  background: var(--navy-ink); color: #a9b6cc; padding-block: 46px;
  font-size: 13.5px;
}
.site-footer .wrap { display: flex; gap: 30px; align-items: center; flex-wrap: wrap; }
.site-footer img { height: 54px; }
.site-footer .fine { margin-inline-start: auto; text-align: end; line-height: 1.8; }
.site-footer a { color: var(--gold-soft); }

/* küçük yardımcılar */
.gold-rule { width: 64px; height: 3px; background: var(--gold); border-radius: 2px; margin-bottom: 18px; }
.note {
  background: var(--gold-tint); border-inline-start: 3px solid var(--gold);
  border-radius: 10px; padding: 16px 20px; font-size: 14px; color: #6d5620;
}