/* OkulaBaşlamaYaşı.com.tr — temel stil */
:root {
  --mavi: #1e3a8a;
  --mavi-acik: #2563eb;
  --mavi-cok-acik: #eff6ff;
  --turuncu: #d97706;
  --yesil: #15803d;
  --kirmizi: #b91c1c;
  --gri-koyu: #1f2937;
  --gri: #6b7280;
  --gri-acik: #f3f4f6;
  --cizgi: #e5e7eb;
  --beyaz: #ffffff;
  --radius: 14px;
  --golge: 0 6px 24px rgba(30, 58, 138, 0.08);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--gri-koyu);
  background: var(--beyaz);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
.container { max-width: 980px; margin: 0 auto; padding: 0 20px; }
a { color: var(--mavi-acik); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Header */
.site-header { background: var(--mavi); color: #fff; position: sticky; top: 0; z-index: 50; box-shadow: 0 2px 12px rgba(0,0,0,0.15); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 62px; }
.brand { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 700; font-size: 1.05rem; }
.brand:hover { text-decoration: none; opacity: 0.92; }
.brand-icon { display: inline-flex; background: rgba(255,255,255,0.14); padding: 6px; border-radius: 10px; }
.brand-text small { font-weight: 400; opacity: 0.75; font-size: 0.78rem; }
.main-nav { display: flex; gap: 6px; }
.main-nav a { color: rgba(255,255,255,0.85); padding: 8px 12px; border-radius: 8px; font-size: 0.93rem; }
.main-nav a:hover { background: rgba(255,255,255,0.12); text-decoration: none; }
.main-nav a.active { background: rgba(255,255,255,0.18); color: #fff; font-weight: 600; }

/* Hero */
.hero { background: linear-gradient(135deg, #1e3a8a 0%, #2563eb 100%); color: #fff; padding: 44px 0 36px; }
.hero h1 { font-size: clamp(1.5rem, 3.6vw, 2.2rem); margin-bottom: 10px; }
.year-badge { display: inline-block; background: rgba(255,255,255,0.18); border: 1px solid rgba(255,255,255,0.35); padding: 3px 12px; border-radius: 999px; font-size: 0.9em; vertical-align: middle; margin-left: 6px; }
.hero-sub { font-size: 1.05rem; opacity: 0.95; max-width: 680px; }

/* Hesap kartı */
.calc-section { margin-top: -26px; position: relative; z-index: 5; }
.calc-card { background: var(--beyaz); border-radius: var(--radius); box-shadow: var(--golge); border: 1px solid var(--cizgi); padding: 28px; }
.calc-card h2 { font-size: 1.25rem; margin-bottom: 18px; color: var(--mavi); }
.calc-form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field label { font-weight: 600; font-size: 0.92rem; }
.field input, .field select {
  padding: 12px 14px; border: 1.5px solid var(--cizgi); border-radius: 10px; font-size: 1rem;
  font-family: inherit; background: var(--beyaz); color: var(--gri-koyu);
}
.field input:focus, .field select:focus { outline: none; border-color: var(--mavi-acik); box-shadow: 0 0 0 3px rgba(37,99,235,0.15); }
.btn-primary {
  background: var(--mavi-acik); color: #fff; border: none; padding: 14px 20px; border-radius: 10px;
  font-size: 1.05rem; font-weight: 700; cursor: pointer; font-family: inherit;
  transition: background 0.15s ease;
}
.btn-primary:hover { background: #1d4ed8; }

/* Sonuç */
.sonuc { margin-top: 22px; border: 1.5px solid var(--cizgi); border-radius: var(--radius); padding: 20px; background: var(--gri-acik); }
.sonuc-badge { font-size: 1.15rem; font-weight: 800; padding: 10px 14px; border-radius: 10px; margin-bottom: 16px; color: #fff; }
.sonuc-badge.zorunlu { background: var(--yesil); }
.sonuc-badge.veli { background: var(--turuncu); }
.sonuc-badge.anasinifi { background: var(--mavi-acik); }
.sonuc-badge.uygun { background: var(--gri); }
.sonuc-badge.hata { background: var(--kirmizi); }
.sonuc-detay { display: grid; grid-template-columns: 1fr 1fr; gap: 10px 18px; margin-bottom: 14px; }
.sonuc-detay div { display: flex; justify-content: space-between; gap: 10px; border-bottom: 1px dashed var(--cizgi); padding-bottom: 6px; font-size: 0.95rem; }
.sonuc-detay dt { color: var(--gri); }
.sonuc-detay dd { font-weight: 700; text-align: right; }
.sonuc-aciklama { font-size: 1rem; margin-bottom: 10px; }
.sonuc-not { font-size: 0.85rem; color: var(--gri); }

/* Bilgi kartları */
.info-section { padding: 46px 0 10px; }
.info-section h2, .table-section h2, .faq-section h2 { font-size: 1.45rem; color: var(--mavi); margin-bottom: 20px; }
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.info-card { background: var(--mavi-cok-acik); border: 1px solid #dbeafe; border-radius: var(--radius); padding: 18px; }
.info-card h3 { font-size: 1rem; color: var(--mavi); margin-bottom: 8px; }
.info-card p { font-size: 0.93rem; color: var(--gri-koyu); }

/* Tablo */
.table-section { padding: 36px 0 10px; }
.table-wrap { overflow-x: auto; border: 1px solid var(--cizgi); border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: 0.95rem; }
th, td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--cizgi); }
th { background: var(--mavi); color: #fff; font-weight: 600; }
tbody tr:nth-child(even) { background: var(--gri-acik); }
tbody tr:last-child td { border-bottom: none; }
.table-link { margin-top: 14px; font-size: 0.95rem; }

/* SSS */
.faq-section { padding: 36px 0 20px; }
.faq-item { border: 1px solid var(--cizgi); border-radius: 10px; margin-bottom: 10px; overflow: hidden; }
.faq-item summary { cursor: pointer; padding: 14px 18px; font-weight: 600; background: var(--gri-acik); list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; float: right; font-weight: 700; color: var(--mavi-acik); }
.faq-item[open] summary::after { content: "−"; }
.faq-item p { padding: 12px 18px 16px; font-size: 0.95rem; }

/* Footer */
.site-footer { background: var(--gri-koyu); color: #d1d5db; margin-top: 40px; padding: 28px 0; font-size: 0.9rem; }
.footer-inner { display: flex; flex-direction: column; gap: 10px; }
.footer-nav { display: flex; gap: 18px; }
.footer-nav a { color: #9ca3af; }
.footer-disclaimer { opacity: 0.8; font-size: 0.82rem; }

/* İç sayfalar */
.page { padding: 36px 0; }
.page h1 { color: var(--mavi); font-size: 1.7rem; margin-bottom: 14px; }
.page h2 { color: var(--mavi); font-size: 1.2rem; margin: 26px 0 10px; }
.page p, .page li { font-size: 0.98rem; margin-bottom: 10px; }
.page ul, .page ol { padding-left: 22px; margin-bottom: 14px; }
.page table { margin: 14px 0 20px; }
.page .not-kutusu { background: #fffbeb; border: 1px solid #fde68a; border-radius: 10px; padding: 14px 16px; font-size: 0.92rem; margin: 16px 0; }

/* Mobil */
@media (max-width: 640px) {
  .form-row { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .sonuc-detay { grid-template-columns: 1fr; }
  .header-inner { height: auto; padding: 10px 0; flex-wrap: wrap; gap: 8px; }
  .main-nav a { padding: 6px 9px; font-size: 0.85rem; }
}