:root {
  --navy: #0f172a;
  --navy-light: #1e293b;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  
  --bg-color: #f8fafc;
  --text-color: #1e293b;
  --card-bg: #ffffff;
  --border-color: #e2e8f0;
  --light-bg: #f1f5f9;
  --input-bg: #ffffff;
}

[data-theme="dark"] {
  --bg-color: #0f172a;
  --text-color: #f8fafc;
  --card-bg: #1e293b;
  --border-color: #334155;
  --light-bg: #0f172a;
  --input-bg: #0f172a;

  /* Bootstrap 5 Native Dark Mode Variable Overrides */
  --bs-body-bg: #0f172a;
  --bs-body-color: #f8fafc;
  --bs-card-bg: #1e293b;
  --bs-card-border-color: #334155;
  --bs-card-color: #f8fafc;
  --bs-tertiary-bg: #0f172a;
  --bs-border-color: #334155;
}

/* ---- Koyu Tema Bootstrap Ezicileri ---- */
[data-theme="dark"] .bg-white { background-color: var(--card-bg) !important; color: var(--text-color) !important; }
[data-theme="dark"] .bg-light { background-color: var(--bg-color) !important; color: var(--text-color) !important; }
[data-theme="dark"] .card-header.bg-white { background-color: var(--card-bg) !important; color: var(--text-color) !important; }
[data-theme="dark"] .text-muted { color: #94a3b8 !important; }
[data-theme="dark"] .text-dark { color: #f8fafc !important; }
[data-theme="dark"] .table-light { --bs-table-bg: var(--light-bg); --bs-table-color: var(--text-color); }
[data-theme="dark"] .accordion-button { background-color: var(--card-bg) !important; color: var(--text-color) !important; }
[data-theme="dark"] .accordion-button:not(.collapsed) { background-color: var(--light-bg) !important; }
[data-theme="dark"] .alert-info { background-color: rgba(59,130,246,0.15) !important; color: #93c5fd !important; border-color: rgba(59,130,246,0.2) !important; }
[data-theme="dark"] .alert-success { background-color: rgba(16,185,129,0.15) !important; color: #6ee7b7 !important; border-color: rgba(16,185,129,0.2) !important; }

/* ---- Genel ---- */
body, [data-theme="dark"] body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-color) !important;
  color: var(--text-color) !important;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color 0.3s, color 0.3s;
}

/* ---- Navbar ---- */
.bg-navy { background-color: var(--navy) !important; }
.navbar-brand { letter-spacing: -0.5px; }

/* ---- Stat kartları ---- */
.stat-card { 
  background-color: var(--card-bg) !important;
  color: var(--text-color) !important;
  border-radius: 12px; 
  transition: transform .15s; 
}
.stat-card:hover { transform: translateY(-2px); }
.stat-icon { width: 52px; height: 52px; border-radius: 12px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }

/* ---- Kartlar ---- */
.card { 
  background-color: var(--card-bg) !important;
  color: var(--text-color) !important;
  border-radius: 12px; 
  border: 1px solid var(--border-color);
}
.card-header { 
  background-color: var(--card-bg) !important;
  color: var(--text-color) !important;
  border-radius: 12px 12px 0 0 !important; 
  border-bottom: 1px solid var(--border-color) !important;
}

/* Inputs and Forms in Dark Mode */
.form-control, .form-select {
  background-color: var(--input-bg);
  color: var(--text-color);
  border-color: var(--border-color);
}
.form-control:focus, .form-select:focus {
  background-color: var(--input-bg);
  color: var(--text-color);
}
.input-group-text {
  background-color: var(--light-bg);
  color: var(--text-color);
  border-color: var(--border-color);
}

.table-light {
  --bs-table-bg: var(--light-bg);
  --bs-table-color: var(--text-color);
}

/* ---- Tablo ---- */
.table {
  color: var(--text-color);
}
.table > :not(caption) > * > * { 
  padding: .75rem 1rem; 
  border-bottom-color: var(--border-color);
}
.table-hover tbody tr:hover {
  --bs-table-hover-bg: var(--light-bg);
  color: var(--text-color);
}

/* ---- Auth sayfalar ---- */
.auth-page .card { border-radius: 16px; }

/* ---- Landing hero ---- */
.hero {
  background: linear-gradient(135deg, var(--navy) 0%, var(--navy-light) 50%, #1e3a5f 100%);
  color: #fff;
}
.hero h1 { color: #fff; }
.hero .lead { color: rgba(255,255,255,.7); }
.hero .text-muted { color: rgba(255,255,255,.5) !important; }

/* ---- Feature icons ---- */
.feature-icon {
  width: 60px; height: 60px;
  border-radius: 16px;
  display: inline-flex; align-items: center; justify-content: center;
  margin: 0 auto;
}

/* ---- Buttons ---- */
.btn { border-radius: 8px; font-weight: 500; }
.btn-primary { background: var(--primary); border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); }

/* ---- Badges ---- */
.badge { border-radius: 6px; }

/* ---- QR Önizleme ---- */
#qrcode canvas, #qrcode img { display: block; }

/* ---- Responsive ---- */
@media (max-width: 576px) {
  .container { padding: 0 12px; }
  h4.fw-bold { font-size: 1.1rem; }
}

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--light-bg); }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }

/* ==========================================================================
   vCard (guns.lol tarzı) Animasyon Stilleri
   ========================================================================== */

/* Hareketli Arka Plan Gradiyenti */
@keyframes animatedGradient {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.bg-animate-gradient {
  background: linear-gradient(-45deg, #0f172a, #1e293b, #3b82f6, #1d4ed8) !important;
  background-size: 400% 400% !important;
  animation: animatedGradient 12s ease infinite !important;
}

/* Kayan Yıldızlar (Star Particles) */
.bg-animate-stars {
  background-color: #05050a !important;
  background-image: 
    radial-gradient(1.5px 1.5px at 20px 30px, #fff, rgba(0,0,0,0)),
    radial-gradient(1px 1px at 40px 70px, #fff, rgba(0,0,0,0)),
    radial-gradient(2px 2px at 50px 160px, #fff, rgba(0,0,0,0)),
    radial-gradient(1.5px 1.5px at 80px 120px, #fff, rgba(0,0,0,0)),
    radial-gradient(1px 1px at 110px 40px, #fff, rgba(0,0,0,0)),
    radial-gradient(2px 2px at 140px 90px, #fff, rgba(0,0,0,0)),
    radial-gradient(1.5px 1.5px at 170px 150px, #fff, rgba(0,0,0,0)),
    radial-gradient(1px 1px at 90px 180px, #fff, rgba(0,0,0,0)),
    radial-gradient(2px 2px at 30px 110px, #fff, rgba(0,0,0,0)),
    radial-gradient(1.5px 1.5px at 130px 10px, #fff, rgba(0,0,0,0)),
    radial-gradient(1px 1px at 70px 80px, #fff, rgba(0,0,0,0)),
    radial-gradient(2px 2px at 160px 190px, #fff, rgba(0,0,0,0)) !important;
  background-size: 200px 200px !important;
  animation: starMovement 20s linear infinite !important;
}
@keyframes starMovement {
  from { background-position: 0 0; }
  to { background-position: 200px 400px; }
}

/* Logo Çerçeve Parlama (Glow) */
.border-glow {
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.8) !important;
  border: 3px solid #3b82f6 !important;
  border-radius: 50% !important;
}

/* Logo Çerçeve Dönen Gradiyent (Spin) */
.border-spin {
  position: relative;
  padding: 3px;
  background: linear-gradient(to right, #3b82f6, #10b981, #f59e0b, #ef4444);
  animation: spinBorder 4s linear infinite;
  border-radius: 50% !important;
}
@keyframes spinBorder {
  100% { filter: hue-rotate(360deg); }
}

/* Gökkuşağı Çerçeve (Rainbow) */
.border-rainbow {
  border: 3px solid transparent !important;
  background: linear-gradient(#0f172a, #0f172a) padding-box,
              linear-gradient(to right, red, orange, yellow, green, blue, indigo, violet) border-box !important;
  border-radius: 50% !important;
}

/* Logo Üzerinde Süzülme (Float) */
.anim-float {
  animation: floatMovement 3s ease-in-out infinite;
}
@keyframes floatMovement {
  0% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
  100% { transform: translateY(0px); }
}

/* Logo Nabız Etkisi (Pulse) */
.anim-pulse {
  animation: pulseMovement 2s infinite;
}
@keyframes pulseMovement {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); box-shadow: 0 0 25px rgba(59, 130, 246, 0.6); }
  100% { transform: scale(1); }
}

/* Müzik Dönüş Animasyonu */
@keyframes spinDisc {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
.music-spin {
  animation: spinDisc 5s linear infinite;
}