/* ==========================================================================
   Tezrehber — Stil Sistemi
   Lacivert + Altın akademik tema. Mobil öncelikli.
   ========================================================================== */

/* ---------- CSS Değişkenleri (Tasarım Token'ları) ---------- */
:root {
  /* Renkler */
  --navy-900: #0a1f38;
  --navy-800: #0f2a4a;   /* ana lacivert */
  --navy-700: #1b3a6b;   /* ikincil lacivert */
  --navy-600: #2a4d82;
  --gold-500: #c8a24b;   /* altın vurgu */
  --gold-400: #d4af37;
  --gold-100: #f3e9cf;
  --cream: #faf7f0;
  --white: #ffffff;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-500: #64748b;
  --gray-700: #334155;
  --gray-900: #0f172a;

  /* Anlamlı takma adlar */
  --color-bg: var(--cream);
  --color-surface: var(--white);
  --color-text: var(--navy-900);
  --color-text-muted: var(--gray-500);
  --color-heading: var(--navy-800);
  --color-primary: var(--navy-800);
  --color-accent: var(--gold-500);
  --color-border: var(--gray-200);

  /* Tipografi */
  --font-heading: 'Playfair Display', Georgia, 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
  --fs-xs: 0.8125rem;   /* 13px */
  --fs-sm: 0.9375rem;   /* 15px */
  --fs-base: 1rem;       /* 16px */
  --fs-lg: 1.125rem;    /* 18px */
  --fs-xl: 1.375rem;    /* 22px */
  --fs-2xl: 1.75rem;    /* 28px */
  --fs-3xl: 2.25rem;    /* 36px */
  --fs-4xl: 3rem;        /* 48px */

  /* Boşluk / ölçek */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  /* Layout */
  --container: 1140px;
  --radius-sm: 6px;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(15, 42, 74, 0.06), 0 1px 3px rgba(15, 42, 74, 0.08);
  --shadow: 0 4px 6px -1px rgba(15, 42, 74, 0.08), 0 2px 4px -2px rgba(15, 42, 74, 0.06);
  --shadow-lg: 0 20px 40px -12px rgba(15, 42, 74, 0.18);
  --transition: 200ms ease;
  --header-h: 72px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 1rem); -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img, svg, picture { display: block; max-width: 100%; height: auto; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--color-accent); }
ul, ol { padding-left: 1.25rem; }
button { font: inherit; cursor: pointer; }
:focus-visible { outline: 3px solid var(--gold-400); outline-offset: 2px; border-radius: 4px; }

/* ---------- Tipografi yardımcıları ---------- */
h1, h2, h3, h4 { font-family: var(--font-heading); color: var(--color-heading); line-height: 1.2; font-weight: 700; }
h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }
p { color: var(--color-text); }

.section-eyebrow {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}
.section-title { margin-bottom: var(--space-4); }
.section-intro { color: var(--color-text-muted); max-width: 60ch; margin-inline: auto; }
.text-center { text-align: center; }

/* ---------- Layout yardımcıları ---------- */
.container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--space-5); }
.section { padding-block: var(--space-9); }
.section--tight { padding-block: var(--space-8); }
.section--surface { background: var(--color-surface); border-block: 1px solid var(--color-border); }
.section--navy { background: var(--navy-800); color: var(--white); }
.section--navy h1, .section--navy h2, .section--navy h3 { color: var(--white); }
.section--navy p { color: rgba(255, 255, 255, 0.85); }
.section--navy .section-intro { color: rgba(255, 255, 255, 0.8); }
.section--cream { background: var(--cream); }
.section-header { text-align: center; margin-bottom: var(--space-8); max-width: 720px; margin-inline: auto; }

/* ---------- Butonlar ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.85rem 1.75rem;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1.2;
}
.btn--primary { background: var(--gold-500); color: var(--navy-900); border-color: var(--gold-500); }
.btn--primary:hover { background: var(--gold-400); border-color: var(--gold-400); color: var(--navy-900); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn--secondary { background: transparent; color: var(--white); border-color: rgba(255,255,255,0.5); }
.btn--secondary:hover { background: rgba(255,255,255,0.1); border-color: var(--white); color: var(--white); }
.btn--outline { background: transparent; color: var(--navy-800); border-color: var(--navy-800); }
.btn--outline:hover { background: var(--navy-800); color: var(--white); }
.btn--lg { padding: 1rem 2.25rem; font-size: var(--fs-base); }
.btn--block { width: 100%; }

/* ---------- Header / Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}
.site-logo { display: inline-flex; align-items: center; }
.site-logo img { height: 40px; width: auto; }
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}
.nav__menu { display: contents; }
.nav__links { display: flex; align-items: center; gap: var(--space-6); list-style: none; padding: 0; margin: 0; }
.nav__links a {
  color: var(--navy-700);
  font-size: var(--fs-sm);
  font-weight: 500;
  padding: var(--space-2) 0;
  position: relative;
}
.nav__links a::after {
  content: '';
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--gold-500);
  transition: width var(--transition);
}
.nav__links a:hover::after, .nav__links a:focus-visible::after { width: 100%; }
.nav__cta { margin-left: var(--space-2); }
.nav__toggle {
  display: none;
  background: transparent;
  border: 0;
  padding: var(--space-2);
  color: var(--navy-800);
}
.nav__toggle svg { width: 28px; height: 28px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background:
    radial-gradient(ellipse at top right, rgba(200, 162, 75, 0.12), transparent 55%),
    linear-gradient(135deg, var(--navy-900) 0%, var(--navy-800) 55%, var(--navy-700) 100%);
  color: var(--white);
  padding-block: var(--space-9) 7rem;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(45deg, rgba(255,255,255,0.015) 0 2px, transparent 2px 22px);
  pointer-events: none;
}
.hero__inner { position: relative; max-width: 760px; padding-top: var(--space-7); }
.hero__eyebrow {
  display: inline-block;
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--gold-400);
  margin-bottom: var(--space-4);
}
.hero h1 {
  color: var(--white);
  font-size: clamp(2rem, 5vw, var(--fs-4xl));
  line-height: 1.12;
  margin-bottom: var(--space-5);
}
.hero h1 em { font-style: normal; color: var(--gold-400); }
.hero__lead {
  font-size: var(--fs-lg);
  color: rgba(255, 255, 255, 0.86);
  max-width: 56ch;
  margin-bottom: var(--space-6);
}
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }
.hero__trust {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  margin-top: var(--space-7);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.75);
}
.hero__trust span { display: inline-flex; align-items: center; gap: var(--space-2); }
.hero__trust svg { width: 18px; height: 18px; color: var(--gold-400); flex-shrink: 0; }

/* ---------- Hizmetler ---------- */
.grid { display: grid; gap: var(--space-5); }
.cards { grid-template-columns: 1fr; }
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-6);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  display: flex;
  flex-direction: column;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--gold-100); }
.card__icon {
  width: 56px; height: 56px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--navy-800); color: var(--gold-400);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-4);
}
.card__icon svg { width: 30px; height: 30px; }
.card h3 { margin-bottom: var(--space-2); }
.card p { color: var(--color-text-muted); font-size: var(--fs-sm); }
.card ul { list-style: none; padding: 0; margin: var(--space-4) 0 0; }
.card ul li {
  font-size: var(--fs-sm);
  color: var(--gray-700);
  padding: var(--space-1) 0 var(--space-1) 1.5rem;
  position: relative;
}
.card ul li::before { content: '✓'; position: absolute; left: 0; color: var(--gold-500); font-weight: 700; }

/* ---------- Disiplinler ---------- */
.badges {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: center;
  margin-top: var(--space-6);
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  background: var(--white);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--navy-700);
  transition: all var(--transition);
}
.badge:hover { border-color: var(--gold-500); color: var(--navy-900); box-shadow: var(--shadow-sm); transform: translateY(-1px); }
.badge svg { width: 18px; height: 18px; color: var(--gold-500); }

/* ---------- Süreç / Timeline ---------- */
.timeline { display: grid; grid-template-columns: 1fr; gap: var(--space-5); counter-reset: step; }
.step {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-6);
  padding-left: var(--space-7);
  counter-increment: step;
}
.step::before {
  content: counter(step);
  position: absolute;
  top: var(--space-5);
  left: var(--space-5);
  transform: translateX(-50%);
  width: 40px; height: 40px;
  background: var(--navy-800);
  color: var(--gold-400);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-lg);
}
.step h3 { font-size: var(--fs-lg); margin-bottom: var(--space-2); }
.step p { color: var(--color-text-muted); font-size: var(--fs-sm); }

/* ---------- SSS (Akordeon) ---------- */
.faq { max-width: 800px; margin-inline: auto; display: grid; gap: var(--space-3); }
.faq__item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  width: 100%;
  background: transparent;
  border: 0;
  text-align: left;
  padding: var(--space-5);
  font-family: var(--font-heading);
  font-size: var(--fs-lg);
  font-weight: 600;
  color: var(--navy-800);
}
.faq__question:hover { background: var(--gray-50); }
.faq__icon { flex-shrink: 0; width: 22px; height: 22px; color: var(--gold-500); transition: transform var(--transition); }
.faq__item[data-open="true"] .faq__icon { transform: rotate(45deg); }
.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition);
}
.faq__item[data-open="true"] .faq__answer { max-height: 400px; }
.faq__answer-inner { padding: 0 var(--space-5) var(--space-5); color: var(--color-text-muted); }

/* ---------- İletişim ---------- */
.contact__grid { display: grid; grid-template-columns: 1fr; gap: var(--space-7); align-items: start; }
.contact__info h3 { margin-bottom: var(--space-3); }
.contact__info p { color: var(--color-text-muted); margin-bottom: var(--space-4); }
.contact__list { list-style: none; padding: 0; display: grid; gap: var(--space-3); }
.contact__list li { display: flex; align-items: flex-start; gap: var(--space-3); font-size: var(--fs-sm); color: var(--gray-700); }
.contact__list svg { width: 20px; height: 20px; color: var(--gold-500); flex-shrink: 0; margin-top: 2px; }
.form-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-6);
  box-shadow: var(--shadow);
}
.form-row { display: grid; grid-template-columns: 1fr; gap: var(--space-4); }
.form-group { margin-bottom: var(--space-4); }
.form-group label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--navy-800);
  margin-bottom: var(--space-2);
}
.form-group label .req { color: #c0392b; }
.form-control {
  width: 100%;
  padding: 0.75rem 0.9rem;
  font: inherit;
  color: var(--navy-900);
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.form-control:focus { outline: none; border-color: var(--navy-700); box-shadow: 0 0 0 3px rgba(27, 58, 107, 0.12); }
textarea.form-control { min-height: 130px; resize: vertical; }
.form-check { display: flex; align-items: flex-start; gap: var(--space-3); margin-bottom: var(--space-5); }
.form-check input { width: 18px; height: 18px; margin-top: 3px; accent-color: var(--navy-800); }
.form-check label { font-size: var(--fs-sm); font-weight: 400; color: var(--gray-700); margin: 0; }
.form-check a { color: var(--navy-700); text-decoration: underline; }
/* Honeypot — kullanıcıdan gizli (spam önlemi) */
.hp { position: absolute; left: -9999px; top: -9999px; opacity: 0; pointer-events: none; }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-900); color: rgba(255, 255, 255, 0.7); padding-block: var(--space-8) var(--space-5); }
.site-footer a { color: rgba(255, 255, 255, 0.8); }
.site-footer a:hover { color: var(--gold-400); }
.footer__grid { display: grid; grid-template-columns: 1fr; gap: var(--space-6); }
.footer__brand p { color: rgba(255, 255, 255, 0.6); font-size: var(--fs-sm); margin-top: var(--space-3); max-width: 36ch; }
.footer__col h4 { color: var(--white); font-family: var(--font-body); font-size: var(--fs-sm); font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: var(--space-3); }
.footer__col ul { list-style: none; padding: 0; display: grid; gap: var(--space-2); }
.footer__col a { font-size: var(--fs-sm); }
.footer__bottom {
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-3);
  font-size: var(--fs-xs);
  color: rgba(255, 255, 255, 0.5);
}
.footer__bottom a { font-size: var(--fs-xs); }
.legal-note { font-size: var(--fs-xs); color: rgba(255, 255, 255, 0.4); margin-top: var(--space-3); font-style: italic; }

/* ---------- Çerez onay banner'ı ---------- */
.cookie-banner {
  position: fixed;
  bottom: var(--space-4);
  left: var(--space-4);
  right: var(--space-4);
  max-width: 480px;
  margin-inline: auto;
  background: var(--navy-900);
  color: var(--white);
  padding: var(--space-5);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  z-index: 200;
  transform: translateY(150%);
  transition: transform 400ms ease;
}
.cookie-banner.is-visible { transform: translateY(0); }
.cookie-banner p { color: rgba(255, 255, 255, 0.85); font-size: var(--fs-sm); margin-bottom: var(--space-3); }
.cookie-banner a { color: var(--gold-400); text-decoration: underline; }
.cookie-banner__actions { display: flex; gap: var(--space-2); }
.cookie-banner .btn { padding: 0.5rem 1.1rem; font-size: var(--fs-xs); }

/* ---------- Yasal sayfa içeriği ---------- */
.legal { max-width: 760px; margin-inline: auto; padding-block: var(--space-8); }
.legal h1 { margin-bottom: var(--space-3); }
.legal .updated { color: var(--color-text-muted); font-size: var(--fs-sm); margin-bottom: var(--space-6); }
.legal h2 { font-size: var(--fs-xl); margin-top: var(--space-6); margin-bottom: var(--space-3); }
.legal h3 { font-size: var(--fs-lg); margin-top: var(--space-5); margin-bottom: var(--space-2); }
.legal p, .legal li { color: var(--gray-700); margin-bottom: var(--space-3); }
.legal ul { margin-bottom: var(--space-4); }
.legal .callout {
  background: var(--gold-100);
  border-left: 4px solid var(--gold-500);
  padding: var(--space-4);
  border-radius: var(--radius-sm);
  margin: var(--space-5) 0;
  font-size: var(--fs-sm);
}
.page-hero {
  background: var(--navy-800);
  color: var(--white);
  padding-block: var(--space-8) var(--space-7);
}
.page-hero h1 { color: var(--white); }
.page-hero p { color: rgba(255, 255, 255, 0.8); }

/* ---------- Teşekkür sayfası ---------- */
.thanks { text-align: center; padding-block: var(--space-9); max-width: 560px; margin-inline: auto; }
.thanks__icon { width: 80px; height: 80px; margin: 0 auto var(--space-5); color: var(--gold-500); }

/* ---------- Responsive ---------- */
@media (min-width: 640px) {
  .form-row { grid-template-columns: 1fr 1fr; }
  .footer__grid { grid-template-columns: 2fr 1fr 1fr; }
}

@media (min-width: 768px) {
  :root { --fs-3xl: 2.5rem; }
  .cards { grid-template-columns: repeat(3, 1fr); }
  .timeline { grid-template-columns: repeat(2, 1fr); }
  .contact__grid { grid-template-columns: 1fr 1.2fr; }
  .section { padding-block: var(--space-9); }
}

@media (min-width: 992px) {
  .timeline { grid-template-columns: repeat(4, 1fr); }
}

/* Mobil menü */
@media (max-width: 860px) {
  .nav__toggle { display: inline-flex; }

  /* Panel: linkler + CTA'yı tek bir dropdown içinde tutar */
  .nav__menu {
    display: flex;
    flex-direction: column;
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    background: var(--white);
    padding: var(--space-4) var(--space-5) var(--space-6);
    gap: var(--space-2);
    box-shadow: var(--shadow-lg);
    transform: translateY(-130%);
    visibility: hidden;
    transition: transform var(--transition), visibility 0s linear 200ms;
    z-index: 99;
    /* Üst köşede hamburger'in olduğu tarafta (sağ) panel olarak görünür */
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }
  .nav__menu[data-open="true"] {
    transform: translateY(0);
    visibility: visible;
    transition: transform var(--transition);
  }

  .nav__links {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    margin: 0;
  }
  .nav__links li { width: 100%; }
  .nav__links a {
    display: block;
    padding: var(--space-3) var(--space-2);
    border-bottom: 1px solid var(--color-border);
  }
  .nav__cta { margin: var(--space-3) 0 0; }

  .hero { padding-bottom: 6rem; }
}

/* Hareket azaltma tercihi */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

/* Yazdırma */
@media print {
  .site-header, .nav__toggle, .hero__actions, .form-card, .cookie-banner { display: none; }
  body { background: white; color: black; }
}