/* ══════════════════════════════════════════════════════════════
   MevzuatBot — Ortak Stil Değişkenleri & Paylaşılan Bileşenler
   DARK THEME v2 — Sora + DM Mono, modern AI-tool dili
   ══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Sora:wght@300;400;500;600;700;800&family=DM+Sans:opsz,wght@9..40,300;9..40,400;9..40,500;9..40,600&family=DM+Mono:wght@400;500&display=swap');

/* ── Tasarım Token'ları ──────────────────────────────────────── */
:root {
  /* Zemin ve yüzeyler */
  --bg:          #05080f;
  --navy:        #05080f;
  --navy-mid:    #0b1120;
  --navy-light:  #16285a;
  --navy-glass:  rgba(5, 8, 15, 0.90);
  --surface:     #0b1120;
  --surface-2:   #111928;
  --surface-3:   #182038;

  /* Uyum — eski değişken isimleri karanlık karşılıklara */
  --cream:       #05080f;
  --cream-dark:  #0b1120;
  --white:       #111928;

  /* Vurgu renkleri */
  --accent:      #4F7FFF;
  --accent-dark: #2E5CE6;
  --accent-subtle: rgba(79, 127, 255, 0.10);

  /* Gold — sadece kritik vurgu noktalarında */
  --gold:        #E8A825;
  --gold-light:  #F5C340;
  --gold-dark:   #B07E18;
  --gold-glass:  rgba(232, 168, 37, 0.13);

  /* Landing gradyanı (hero, CTA, gradient text) */
  --accent-grad: linear-gradient(135deg, #7B5EA7 0%, #4F7FFF 55%, #00C6E0 100%);
  --accent-grad-hover: linear-gradient(135deg, #9370C4 0%, #6494FF 55%, #20D6F0 100%);

  /* Metin */
  --text:        #C8D4EE;
  --text-mid:    #6880A8;
  --text-muted:  #384E6A;

  /* Kenarlık */
  --border:      #1C2B43;
  --border-light:#101928;

  /* Durum renkleri */
  --success:     #34d399;
  --error:       #f87171;
  --warn:        #fbbf24;

  /* Tipografi
     ponytail: --font-serif → Sora (display); var(--font-serif) kullanan tüm
     yerler Cormorant → Sora'ya geçer; class değişikliği olmadan. */
  --font-serif:   'Sora', system-ui, sans-serif;
  --font-display: 'Sora', system-ui, sans-serif;
  --font-sans:    'DM Sans', system-ui, sans-serif;
  --font-mono:    'DM Mono', 'Courier New', monospace;

  /* Boşluk & Şekil */
  --header-h:    60px;
  --sidebar-w:   240px;
  --radius:      8px;
  --radius-lg:   12px;
  --radius-xl:   18px;

  /* Gölgeler */
  --shadow:      0 4px 20px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255,255,255,0.04);
  --shadow-lg:   0 16px 48px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255,255,255,0.05);
  --surface-elev:0 0 0 1px rgba(255,255,255,0.07), 0 8px 32px rgba(0,0,0,0.40);

  /* Motion */
  --ease:        cubic-bezier(.16,1,.3,1);
  --ease-out:    cubic-bezier(.2,.7,.2,1);
  --dur:         0.18s;
  --dur-slow:    0.35s;
}

/* ── Uygulama modu — yoğun veri sayfaları (tarife, hesabım)
   Aynı renk dili, animasyon kapalı, sıkı ritim. ────────────── */
body.app {
  --dur:      0s;
  --dur-slow: 0s;
}

/* ── Reset ───────────────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* ── Header ──────────────────────────────────────────────────── */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  height: var(--header-h);
  background: rgba(5, 8, 15, 0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  display: flex; align-items: center;
  padding: 0 24px; gap: 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  box-shadow: 0 1px 0 rgba(255,255,255,0.04), 0 4px 24px rgba(0,0,0,0.40);
}

/* Logo */
.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; flex-shrink: 0; margin-right: 24px; }
.logo-sigil {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--gold) 0%, var(--gold-light) 100%);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-size: 17px; font-weight: 800; color: #080c18;
  box-shadow: 0 2px 10px rgba(232,168,37,.28), 0 0 0 1px rgba(232,168,37,.15);
  letter-spacing: -0.5px;
}
.logo-text { line-height: 1.15; }
.logo-name {
  font-family: var(--font-display);
  font-size: 17px; font-weight: 700; color: #fff;
  letter-spacing: -0.3px;
}
.logo-sub {
  font-size: 9px; font-weight: 500;
  color: var(--gold); letter-spacing: 1.8px;
  text-transform: uppercase; margin-top: 1px;
  opacity: 0.85;
}

/* Nav */
.site-nav { display: flex; align-items: center; gap: 1px; margin-left: auto; }
.nav-link {
  color: rgba(255,255,255,0.50); text-decoration: none;
  font-size: 13px; font-weight: 400;
  padding: 6px 12px; border-radius: 6px;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}
.nav-link:hover { color: rgba(255,255,255,0.90); background: rgba(255,255,255,0.06); }
.nav-link.active { color: var(--gold); font-weight: 500; }
.nav-divider { width: 1px; height: 16px; background: rgba(255,255,255,0.07); margin: 0 4px; }
.nav-cta {
  background: var(--accent);
  color: #fff;
  border-radius: 7px; padding: 7px 17px;
  font-size: 13px; font-weight: 600;
  text-decoration: none; margin-left: 10px;
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  box-shadow: 0 0 0 0 rgba(79,127,255,0);
}
.nav-cta:hover {
  background: var(--accent-dark);
  box-shadow: 0 4px 16px rgba(79,127,255,0.28);
}

/* ── Tab Bar (mevzuat.net stili üst sekmeler) ─────────────────── */
.tab-bar {
  display: flex; align-items: stretch;
  background: var(--navy-mid);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  padding: 0 24px;
  gap: 2px;
}
.tab-item {
  display: flex; align-items: center; gap: 7px;
  padding: 0 16px; height: 40px;
  font-size: 12.5px; font-weight: 500;
  color: rgba(255,255,255,0.48);
  text-decoration: none; cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
  white-space: nowrap;
}
.tab-item:hover { color: rgba(255,255,255,0.85); background: rgba(255,255,255,0.04); }
.tab-item.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
  background: rgba(232,168,37,0.05);
}
.tab-item .tab-badge {
  background: #e53e3e; color: #fff;
  font-size: 10px; font-weight: 700;
  padding: 1px 5px; border-radius: 3px;
}

/* ── Search Bar (mevzuat.net stili arama çubuğu) ────────────────── */
.search-bar-wrap {
  background: var(--surface);
  border-bottom: 1px solid var(--border-light);
  padding: 10px 24px;
  display: flex; align-items: center; gap: 8px;
  flex-wrap: wrap;
}
.search-bar-input {
  flex: 1; min-width: 220px; height: 36px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0 14px;
  font-family: var(--font-mono); font-size: 13px; color: var(--text);
  outline: none;
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.search-bar-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(79,127,255,0.12);
}
.search-bar-input::placeholder { color: var(--text-muted); font-family: var(--font-sans); }
.search-bar-select {
  height: 36px; padding: 0 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-family: var(--font-sans); font-size: 12.5px; color: var(--text);
  outline: none; cursor: pointer;
}
.search-bar-btn {
  height: 36px; padding: 0 18px;
  border: none; border-radius: 6px; cursor: pointer;
  font-family: var(--font-sans); font-size: 13px; font-weight: 500;
  transition: all var(--dur) var(--ease);
}
.search-bar-btn.primary { background: var(--accent); color: #fff; }
.search-bar-btn.primary:hover { background: var(--accent-dark); }
.search-bar-btn.secondary {
  background: var(--surface-2); color: var(--text-mid);
  border: 1px solid var(--border);
}
.search-bar-btn.secondary:hover { border-color: var(--accent); color: var(--text); }

/* ── Footer ──────────────────────────────────────────────────── */
.site-footer {
  background: var(--navy-mid);
  color: rgba(255,255,255,0.28);
  text-align: center; font-size: 12.5px;
  padding: 20px 32px;
  border-top: 1px solid rgba(255,255,255,0.05);
}
.site-footer a { color: var(--gold); text-decoration: none; opacity: 0.85; }
.site-footer a:hover { opacity: 1; }

/* ── GTIP Kodu pill ──────────────────────────────────────────── */
.code-pill {
  font-family: var(--font-mono);
  font-size: 11.5px; font-weight: 500;
  background: rgba(79,127,255,0.10); color: var(--accent);
  padding: 3px 9px; border-radius: 4px;
  letter-spacing: 0.8px; display: inline-block;
  border: 1px solid rgba(79,127,255,0.18);
}

/* ── Badge ───────────────────────────────────────────────────── */
.badge {
  display: inline-flex; align-items: center;
  font-size: 11px; font-weight: 600;
  padding: 2px 9px; border-radius: 20px;
  letter-spacing: 0.3px;
}
.badge-navy  { background: rgba(79,127,255,0.13); color: #7baeff; }
.badge-gold  { background: var(--gold-glass); color: var(--gold); }
.badge-green { background: rgba(52,211,153,0.12); color: #34d399; }
.badge-red   { background: rgba(248,113,113,0.12); color: #f87171; }
.badge-amber { background: rgba(251,191,36,0.12); color: #fbbf24; }

/* ── Butonlar ────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--font-sans); font-size: 13.5px; font-weight: 500;
  border: none; border-radius: var(--radius); cursor: pointer;
  padding: 9px 20px; text-decoration: none;
  transition: all var(--dur) var(--ease);
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); box-shadow: 0 4px 16px rgba(79,127,255,0.28); }
.btn-gold { background: var(--gold); color: #080c18; font-weight: 600; }
.btn-gold:hover { background: var(--gold-light); box-shadow: 0 4px 14px rgba(232,168,37,0.25); }
.btn-ghost {
  background: transparent; color: var(--text-mid);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--accent); color: var(--text); }
.btn-sm { font-size: 12px; padding: 5px 12px; }
.btn-dark { background: var(--surface-2); color: var(--text); border: 1px solid var(--border); }
.btn-dark:hover { background: var(--surface-3); }

/* Gradient CTA butonu (landing için) */
.btn-grad {
  background: var(--accent-grad);
  color: #fff; font-weight: 600;
  position: relative; overflow: hidden;
}
.btn-grad:hover { background: var(--accent-grad-hover); box-shadow: 0 6px 24px rgba(79,127,255,0.30); }

/* ── Kart ────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  transition: box-shadow var(--dur-slow) var(--ease), border-color var(--dur-slow) var(--ease);
}
.card:hover { box-shadow: var(--shadow); border-color: var(--border); }

/* ── Gradient text utility (landing başlıkları) ─────────────── */
.text-grad {
  background: var(--accent-grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Reveal animasyonu (IntersectionObserver ile) ────────────── */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity var(--dur-slow) var(--ease),
    transform var(--dur-slow) var(--ease);
}
.reveal.visible { opacity: 1; transform: none; }
/* Stagger delay'leri */
.reveal-d1 { transition-delay: 0.06s; }
.reveal-d2 { transition-delay: 0.12s; }
.reveal-d3 { transition-delay: 0.18s; }
.reveal-d4 { transition-delay: 0.24s; }
.reveal-d5 { transition-delay: 0.30s; }

/* ── Scrollbar ───────────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--surface); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 10px; }

/* ── Loading Spinner ─────────────────────────────────────────── */
.spinner {
  width: 32px; height: 32px;
  border: 2.5px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Temel animasyonlar ──────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(79,127,255,0.15); }
  50%       { box-shadow: 0 0 40px rgba(79,127,255,0.30); }
}
.fade-up   { animation: fadeUp  0.30s var(--ease) both; }
.fade-in   { animation: fadeIn  0.25s var(--ease) both; }

/* ── Hamburger & Mobile Nav ──────────────────────────────────── */
.nav-hamburger {
  display: none;
  flex-direction: column; align-items: center; justify-content: center;
  width: 38px; height: 38px; margin-left: 8px;
  background: transparent; border: none; cursor: pointer;
  border-radius: 7px; gap: 5px; padding: 6px; flex-shrink: 0;
  transition: background var(--dur) var(--ease);
}
.nav-hamburger:hover { background: rgba(255,255,255,0.07); }
.nav-hamburger span {
  display: block; width: 20px; height: 2px;
  background: rgba(255,255,255,0.75); border-radius: 2px;
  transition: all 0.22s var(--ease); transform-origin: center;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-mobile {
  display: none;
  position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
  background: var(--navy); z-index: 198;
  flex-direction: column; padding: 8px 0 48px;
  overflow-y: auto;
  border-top: 1px solid rgba(255,255,255,0.07);
}
.nav-mobile.open { display: flex; }
.nav-mobile-link {
  color: rgba(255,255,255,0.65); text-decoration: none;
  font-size: 16px; font-weight: 400;
  padding: 16px 24px;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  display: block; transition: color 0.14s, background 0.14s;
}
.nav-mobile-link:hover { color: #fff; background: rgba(255,255,255,0.04); }
.nav-mobile-link.active { color: var(--gold); font-weight: 600; }
.nav-mobile-cta {
  display: block; margin: 24px 24px 0;
  background: var(--accent); color: #fff;
  border-radius: 9px; padding: 15px 24px;
  text-align: center; font-size: 15px; font-weight: 600;
  text-decoration: none; transition: background var(--dur) var(--ease);
}
.nav-mobile-cta:hover { background: var(--accent-dark); }

/* ── Responsive ──────────────────────────────────────────────── */
@media (max-width: 768px) {
  .site-header { padding: 0 16px; }
  .nav-link, .nav-divider, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .tab-bar { padding: 0 12px; overflow-x: auto; scrollbar-width: none; }
  .tab-bar::-webkit-scrollbar { display: none; }
  .tab-item { padding: 0 12px; font-size: 12px; }
  .search-bar-wrap { padding: 8px 12px; gap: 6px; }
  .search-bar-input { min-width: 0; font-size: 12.5px; }
}