/* The Math League Türkiye - Resmi Kurumsal & Akademik Stil Sistemi */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  --primary-navy: #0B1B3D;
  --secondary-navy: #152B52;
  --oxford-blue: #1A365D;
  --academic-gold: #946C00;
  --academic-gold-light: #FDF6E2;
  --border-subtle: #E2E8F0;
  --text-primary: #0F172A;
  --text-secondary: #475569;
}

body {
  font-family: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: #0F172A;
  background-color: #FFFFFF;
  -webkit-font-smoothing: antialiased;
}

.font-academic-title {
  font-family: 'Outfit', 'Plus Jakarta Sans', sans-serif;
  letter-spacing: -0.03em;
  font-weight: 800;
}

.font-serif-body {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 450;
  letter-spacing: -0.01em;
}

.font-mono-code {
  font-family: 'JetBrains Mono', monospace;
}

/* Resmi Header Logosu (4rem / 64px) */
.header-logo {
  height: 3rem;
  width: auto;
  object-fit: contain;
  transition: transform 0.2s ease;
}

@media (min-width: 640px) {
  .header-logo {
    height: 3.5rem;
  }
}

@media (min-width: 1024px) {
  .header-logo {
    height: 4rem; /* 64px - 4rem tam boy */
  }
}

.logo-official {
  transition: opacity 0.2s;
}

.logo-official:hover {
  opacity: 0.9;
}

/* Subtle Institutional Texture & Grid (Enhanced with soft warm glow) */
.academic-bg {
  background-color: #F8FAFC;
  background-image: 
    radial-gradient(at 0% 0%, rgba(26, 128, 201, 0.08) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(99, 102, 241, 0.08) 0px, transparent 50%),
    radial-gradient(at 50% 100%, rgba(14, 165, 233, 0.05) 0px, transparent 50%),
    linear-gradient(to right, rgba(226, 232, 240, 0.5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(226, 232, 240, 0.5) 1px, transparent 1px);
  background-size: 100% 100%, 100% 100%, 100% 100%, 32px 32px, 32px 32px;
}

/* Hero Vibrant Atmosphere */
.hero-vibrant-bg {
  background: linear-gradient(135deg, #F8FAFC 0%, #EEF6FC 50%, #F5F3FF 100%);
  position: relative;
  overflow: hidden;
}

.hero-vibrant-bg::before {
  content: '';
  position: absolute;
  top: -20%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(26, 128, 201, 0.12) 0%, rgba(26, 128, 201, 0) 70%);
  border-radius: 50%;
  pointer-events: none;
}

/* Card Hover Lift with Soft Colored Glow */
.academic-card {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  box-shadow: 0 2px 4px 0 rgba(15, 23, 42, 0.04), 0 1px 2px -1px rgba(15, 23, 42, 0.04);
  transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
}

.academic-card:hover {
  border-color: #93C5FD;
  box-shadow: 0 12px 28px -6px rgba(26, 128, 201, 0.15), 0 4px 10px -2px rgba(15, 23, 42, 0.05);
  transform: translateY(-3px);
}

/* Vibrant Card Top Accents */
.accent-bar-blue { border-top: 4px solid #1A80C9; }
.accent-bar-teal { border-top: 4px solid #0D9488; }
.accent-bar-indigo { border-top: 4px solid #4F46E5; }
.accent-bar-purple { border-top: 4px solid #7C3AED; }
.accent-bar-amber { border-top: 4px solid #D97706; }
.accent-bar-emerald { border-top: 4px solid #059669; }
.accent-bar-rose { border-top: 4px solid #E11D48; }

/* Gradient Text Utilities */
.text-gradient-blue {
  background: linear-gradient(135deg, #0B1B3D 0%, #1A80C9 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.text-gradient-gold {
  background: linear-gradient(135deg, #B45309 0%, #F59E0B 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Regulatory Notice / Resmi Sirküler Çerçevesi */
.official-bulletin {
  border-left: 4px solid #DC2626;
  background: linear-gradient(to right, #FEF2F2, #FFF7ED);
}

.official-stamp {
  border: 2px dashed #946C00;
  color: #946C00;
}

/* Clean Scrollbar */
::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}

::-webkit-scrollbar-track {
  background: #F1F5F9;
}

::-webkit-scrollbar-thumb {
  background: #CBD5E1;
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: #94A3B8;
}

/* Modal Stilleri */
.modal-overlay {
  transition: opacity 0.2s ease-out;
}

.modal-container {
  transition: transform 0.2s ease-out, opacity 0.2s ease-out;
}

.modal-hidden {
  opacity: 0;
  pointer-events: none;
}

.modal-hidden .modal-container {
  transform: scale(0.97) translateY(8px);
}

/* Drag and Drop Zone */
.drag-over {
  border-color: #0B1B3D !important;
  background-color: #F1F5F9 !important;
}