/* ============================================================
   Doç. Dr. Volkan Atmış — Tasarım Sistemi
   Palet: derin lacivert + altın | Başlık: Playfair Display | Gövde: Inter
   ============================================================ */

:root {
  --navy-900: #0b1c30;
  --navy-800: #0f2440;
  --navy-700: #16324f;
  --navy-600: #1f4068;
  --gold: #b08d57;
  --gold-light: #c9a96a;
  --gold-soft: rgba(176, 141, 87, 0.14);
  --cream: #faf8f4;
  --white: #ffffff;
  --ink: #22303f;
  --muted: #5c6b7a;
  --line: rgba(176, 141, 87, 0.35);
  --shadow: 0 18px 45px rgba(11, 28, 48, 0.10);
  --radius: 14px;
  --font-head: 'Playfair Display', 'Georgia', serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
}

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

html { scroll-behavior: smooth; }

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

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

a { color: inherit; text-decoration: none; }

.container {
  width: min(1140px, 92%);
  margin: 0 auto;
}

/* ---------- Başlıklar ---------- */

h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--navy-800);
  line-height: 1.25;
  font-weight: 600;
}

.section { padding: 96px 0; }

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--gold);
  font-weight: 600;
  margin-bottom: 14px;
}

.section-head h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); }

.section-head p { color: var(--muted); margin-top: 14px; }

.gold-rule {
  width: 64px;
  height: 2px;
  background: var(--gold);
  margin: 22px auto 0;
}

/* ---------- Üst menü ---------- */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  background: rgba(11, 28, 48, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(176, 141, 87, 0.25);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

.brand {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand .brand-name {
  font-family: var(--font-head);
  font-size: 1.12rem;
  color: var(--white);
  letter-spacing: 0.02em;
}

.brand .brand-title {
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold-light);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  list-style: none;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active { color: var(--gold-light); }

.nav-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.lang-switch {
  display: flex;
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: 999px;
  overflow: hidden;
}

.lang-switch button {
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 6px 12px;
  cursor: pointer;
  transition: all 0.2s;
}

.lang-switch button.active {
  background: var(--gold);
  color: var(--navy-900);
}

/* ---------- Butonlar ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 28px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.25s;
}

.btn-gold {
  background: var(--gold);
  color: var(--navy-900);
}

.btn-gold:hover {
  background: var(--gold-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(176, 141, 87, 0.35);
}

.btn-outline {
  border-color: rgba(255, 255, 255, 0.45);
  color: var(--white);
}

.btn-outline:hover { border-color: var(--gold-light); color: var(--gold-light); }

.btn-outline-navy {
  border-color: var(--navy-700);
  color: var(--navy-700);
}

.btn-outline-navy:hover { background: var(--navy-800); color: var(--white); }

.btn-sm { padding: 9px 20px; font-size: 0.84rem; }

/* ---------- Hero ---------- */

.hero {
  position: relative;
  background:
    radial-gradient(1100px 520px at 82% -10%, rgba(176, 141, 87, 0.20), transparent 60%),
    linear-gradient(160deg, var(--navy-900) 0%, var(--navy-800) 55%, var(--navy-700) 100%);
  color: var(--white);
  padding: 190px 0 130px;
  overflow: hidden;
}

.hero::after {
  content: '';
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
  opacity: 0.6;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 64px;
  align-items: center;
}

.hero h1 {
  color: var(--white);
  font-size: clamp(2.2rem, 4.6vw, 3.4rem);
  margin-bottom: 10px;
}

.hero .hero-title {
  color: var(--gold-light);
  font-size: 1.02rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.hero .hero-lead {
  color: rgba(255, 255, 255, 0.82);
  font-size: 1.08rem;
  max-width: 540px;
  margin-bottom: 38px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-photo {
  position: relative;
  justify-self: center;
}

.hero-photo::before {
  content: '';
  position: absolute;
  inset: -18px;
  border: 1px solid var(--line);
  border-radius: 50%;
}

.hero-photo img {
  width: min(340px, 70vw);
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 50%;
  border: 6px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.45);
}

/* ---------- Gösterge kartları ---------- */

.stats {
  background: var(--white);
  border-bottom: 1px solid #efe9df;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  padding: 54px 0;
}

.stat {
  text-align: center;
  padding: 10px 14px;
  border-right: 1px solid #eee5d8;
}

.stat:last-child { border-right: none; }

.stat .stat-num {
  font-family: var(--font-head);
  font-size: 2.5rem;
  color: var(--navy-800);
  font-weight: 700;
}

.stat .stat-num span { color: var(--gold); }

.stat .stat-label {
  font-size: 0.84rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  margin-top: 4px;
}

/* ---------- Kartlar ---------- */

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

.cards-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }

.card {
  background: var(--white);
  border: 1px solid #efe7da;
  border-radius: var(--radius);
  padding: 32px 26px;
  box-shadow: 0 6px 20px rgba(11, 28, 48, 0.05);
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
}

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

.card .card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--gold-soft);
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  color: var(--gold);
}

.card .card-icon svg { width: 26px; height: 26px; }

.card h3 { font-size: 1.12rem; margin-bottom: 10px; }

.card p { font-size: 0.9rem; color: var(--muted); }

/* ---------- Hakkında özeti / iki kolon ---------- */

.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: center;
}

.split .split-photo {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
}

.split .split-photo img { width: 100%; height: auto; }

.split h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); margin-bottom: 20px; }

.split p { color: var(--muted); margin-bottom: 16px; }

/* ---------- Zaman çizelgesi ---------- */

.timeline {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
  padding-left: 42px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(var(--gold), rgba(176, 141, 87, 0.15));
}

.timeline-item { position: relative; padding-bottom: 38px; }

.timeline-item::before {
  content: '';
  position: absolute;
  left: -38px;
  top: 7px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 0 5px var(--gold-soft);
}

.timeline-item .t-year {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--gold);
  text-transform: uppercase;
}

.timeline-item h3 { font-size: 1.15rem; margin: 6px 0 6px; }

.timeline-item p { color: var(--muted); font-size: 0.94rem; }

/* ---------- Görev listesi ---------- */

.roles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}

.role-item {
  display: flex;
  gap: 16px;
  background: var(--white);
  border: 1px solid #efe7da;
  border-radius: var(--radius);
  padding: 22px 24px;
  align-items: flex-start;
}

.role-item .role-dot {
  flex: 0 0 auto;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--gold);
  margin-top: 8px;
}

.role-item h3 { font-size: 1.02rem; margin-bottom: 4px; }

.role-item p { font-size: 0.88rem; color: var(--muted); }

/* ---------- Yayın listesi ---------- */

.pub-list { max-width: 880px; margin: 0 auto; }

.pub-item {
  background: var(--white);
  border: 1px solid #efe7da;
  border-left: 3px solid var(--gold);
  border-radius: 10px;
  padding: 24px 28px;
  margin-bottom: 18px;
  transition: box-shadow 0.2s, transform 0.2s;
}

.pub-item:hover { box-shadow: var(--shadow); transform: translateX(4px); }

.pub-item h3 { font-size: 1.05rem; margin-bottom: 8px; }

.pub-item .pub-meta {
  font-size: 0.84rem;
  color: var(--muted);
}

.pub-item .pub-meta b { color: var(--navy-700); font-weight: 600; }

.pub-links {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 44px;
  flex-wrap: wrap;
}

/* ---------- Hasta yorumları ---------- */

.quotes-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
  max-width: 980px;
  margin: 0 auto;
}

.quote {
  background: var(--white);
  border: 1px solid #efe7da;
  border-radius: var(--radius);
  padding: 34px 30px;
  position: relative;
  box-shadow: 0 6px 20px rgba(11, 28, 48, 0.05);
}

.quote::before {
  content: '“';
  position: absolute;
  top: 10px;
  left: 24px;
  font-family: var(--font-head);
  font-size: 4rem;
  color: var(--gold-soft);
  color: rgba(176, 141, 87, 0.30);
  line-height: 1;
}

.quote p {
  color: var(--ink);
  font-size: 0.96rem;
  margin: 22px 0 18px;
}

.quote .quote-author {
  font-size: 0.84rem;
  color: var(--muted);
  letter-spacing: 0.05em;
}

.quote .stars { color: var(--gold); letter-spacing: 3px; font-size: 0.9rem; }

/* ---------- İletişim ---------- */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.contact-item {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 20px 0;
  border-bottom: 1px solid #eee5d8;
}

.contact-item .c-icon {
  flex: 0 0 auto;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--gold-soft);
  display: grid;
  place-items: center;
  color: var(--gold);
}

.contact-item .c-icon svg { width: 21px; height: 21px; }

.contact-item h3 { font-size: 1rem; margin-bottom: 3px; }

.contact-item p, .contact-item a { color: var(--muted); font-size: 0.94rem; }

.contact-item a:hover { color: var(--gold); }

.form-card {
  background: var(--white);
  border: 1px solid #efe7da;
  border-radius: var(--radius);
  padding: 38px 34px;
  box-shadow: var(--shadow);
}

.form-card h3 { font-size: 1.3rem; margin-bottom: 8px; }

.form-card > p { color: var(--muted); font-size: 0.9rem; margin-bottom: 26px; }

.form-row { margin-bottom: 18px; }

.form-row label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--navy-700);
  margin-bottom: 7px;
  text-transform: uppercase;
}

.form-row input,
.form-row textarea {
  width: 100%;
  border: 1px solid #e3dacb;
  border-radius: 10px;
  padding: 13px 15px;
  font-family: var(--font-body);
  font-size: 0.94rem;
  color: var(--ink);
  background: #fdfcf9;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-soft);
}

.form-row textarea { resize: vertical; min-height: 120px; }

/* ---------- CTA şeridi ---------- */

.cta-band {
  background:
    radial-gradient(700px 300px at 15% 20%, rgba(176, 141, 87, 0.22), transparent 60%),
    linear-gradient(140deg, var(--navy-900), var(--navy-700));
  color: var(--white);
  text-align: center;
  padding: 84px 0;
}

.cta-band h2 { color: var(--white); font-size: clamp(1.7rem, 3vw, 2.4rem); }

.cta-band p { color: rgba(255, 255, 255, 0.78); max-width: 560px; margin: 16px auto 34px; }

.cta-band .btn-gold { font-size: 1rem; padding: 15px 36px; }

/* ---------- Sayfa başlığı (alt sayfalar) ---------- */

.page-hero {
  background:
    radial-gradient(800px 380px at 85% 0%, rgba(176, 141, 87, 0.18), transparent 60%),
    linear-gradient(150deg, var(--navy-900), var(--navy-700));
  color: var(--white);
  padding: 170px 0 90px;
  text-align: center;
}

.page-hero h1 { color: var(--white); font-size: clamp(2rem, 4vw, 2.9rem); }

.page-hero p {
  color: rgba(255, 255, 255, 0.78);
  max-width: 620px;
  margin: 18px auto 0;
}

.page-hero .gold-rule { margin-top: 26px; }

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

.site-footer {
  background: var(--navy-900);
  color: rgba(255, 255, 255, 0.72);
  padding: 64px 0 30px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 44px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.10);
}

.site-footer h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 18px;
}

.site-footer .f-brand {
  font-family: var(--font-head);
  font-size: 1.25rem;
  color: var(--white);
  margin-bottom: 6px;
}

.site-footer .f-title {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gold-light);
  margin-bottom: 18px;
}

.site-footer p { font-size: 0.9rem; }

.footer-links { list-style: none; }

.footer-links li { margin-bottom: 10px; }

.footer-links a { font-size: 0.9rem; transition: color 0.2s; }

.footer-links a:hover { color: var(--gold-light); }

.footer-bottom {
  padding-top: 26px;
  text-align: center;
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.45);
}

/* ---------- Animasyon ---------- */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible { opacity: 1; transform: none; }

/* ---------- Mobil menü ---------- */

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  margin: 5px 0;
  transition: all 0.25s;
}

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

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; text-align: center; gap: 48px; }
  .hero .hero-lead { margin-left: auto; margin-right: auto; }
  .hero-actions { justify-content: center; }
  .hero-photo { order: -1; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 34px 10px; }
  .stat:nth-child(2) { border-right: none; }
  .cards-grid, .cards-grid.cols-3 { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .roles-grid, .quotes-grid, .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
}

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed;
    top: 76px;
    left: 0;
    right: 0;
    background: var(--navy-900);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 10px 5%;
    border-bottom: 1px solid var(--line);
    transform: translateY(-130%);
    transition: transform 0.3s ease;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links li { width: 100%; }
  .nav-links a { display: block; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,0.07); }
  .nav-links li:last-child a { border-bottom: none; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .section { padding: 72px 0; }
}

@media (max-width: 620px) {
  .cards-grid, .cards-grid.cols-3 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .hero { padding: 150px 0 90px; }
  .brand .brand-title { display: none; }
}