/* =========================================================
   EXAM SYSTEM - ORTAK TABAN CSS (PREMIUM GÜNCELLEME)
   Tüm Snav Tiplerinin (MCQ, OPEN, MATCH) Ana Şablonu
   ========================================================= */

:root {
  /* Renkler - Tema ile uyumlu */
  --primary-color: var(--primary, #6366f1);
  --primary-hover: var(--primary-light, #818cf8);
  --success-color: var(--emerald, #10b981);
  --success-light: rgba(16, 185, 129, 0.1);
  --success-bg: rgba(16, 185, 129, 0.08);
  --danger-color: var(--rose, #ec4899);
  --danger-light: rgba(236, 72, 153, 0.1);
  --warning-color: var(--amber, #f59e0b);
  
  /* Borders & Backgrounds */
  --border-color: var(--border, #e2e8f0);
  --border-light: var(--slate-300, #cbd5e1);
  --bg-light: var(--slate-50, #f8fafc);
  --bg-white: var(--card, #fff);
  --bg-info: var(--primary-50, #f5f3ff);
  
  /* Spacing */
  --spacing-xs: 5px;
  --spacing-sm: 8px;
  --spacing-md: 10px;
  --spacing-lg: 15px;
  --spacing-xl: 20px;
  
  /* Border Radius */
  --radius-sm: var(--rs, 8px);
  --radius-md: var(--rs, 8px);
  --radius-lg: 10px;
  --radius-xl: var(--r, 12px);
  --radius-round: 999px;
  
  /* Shadows */
  --shadow-sm: var(--sh, 0 1px 2px rgba(0, 0, 0, 0.03));
  --shadow-md: 0 3px 6px rgba(0, 0, 0, 0.08);
  --shadow-lg: var(--shm, 0 4px 12px rgba(0, 0, 0, 0.06));
  --shadow-card: var(--sh, 0 1px 2px rgba(0, 0, 0, 0.03));
  
  /* Typography */
  --font-base: 1rem;
  --font-sm: 0.875rem;
  --font-lg: 1.5rem;
  --font-xl: 1.6rem;
  --font-weight-normal: 500;
  --font-weight-bold: 600;
  --font-weight-extra: 700;
  
  /* Transitions */
  --transition-fast: all 0.2s ease;
  --transition-normal: all 0.3s ease;
}

/* =========================================================
   GENEL FONT VE YERLEŞİM (Sora & Outfit Teması)
   ========================================================= */

.exam-wrap, .exam-start, .exam-area, .exam-controls .btn,
#online-test-wrap, #online-test-start, #online-test-area,
#mv-open-exam-wrap, #mv-open-exam-start, #mv-open-exam-area,
#mv-match-exam-wrap, #mv-match-exam-start, #mv-match-exam-area, #mv-match-board-container {
  font-family: 'Sora', -apple-system, sans-serif;
  margin-bottom: var(--spacing-xl);
}

/* =========================================================
   TÜM SINAVLAR İÇİN ORTAK BAŞLANGIÇ EKRANI (Premium Start Screen)
   ========================================================= */
.exam-start, 
#online-test-start, 
#mv-open-exam-start, 
#mv-match-exam-start {
  background: linear-gradient(to bottom right, var(--bg-white), var(--primary-50));
  border: 1px solid var(--primary-100);
  border-radius: 16px;
  box-shadow: 0 12px 32px rgba(99,102,241,0.08);
  padding: 50px 30px;
  text-align: center;
  min-height: 400px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
}

/* Balıklar (Outfit Fontu ile Güçlü Duruş) */
.exam-start h3, .exam-start h4, .exam-start h2,
#online-test-start h3, #online-test-start h4, #online-test-start h2,
#mv-open-exam-start h3, #mv-open-exam-start h4, #mv-open-exam-start h2,
#mv-match-exam-start h3, #mv-match-exam-start h4, #mv-match-exam-start h2 {
  font-family: 'Outfit', sans-serif;
  font-size: 28px;
  font-weight: 800;
  color: var(--slate-900);
  margin-bottom: 20px !important;
  line-height: 1.3;
  letter-spacing: -0.5px;
}

/* Meta Bilgileri (Hap Şeklinde Bilgi Kutusu) */
.exam-start .text-muted, .exam-start p,
#online-test-start .text-muted, #online-test-start p,
#mv-open-exam-start .text-muted, #mv-open-exam-start p,
#mv-match-exam-start .text-muted, #mv-match-exam-start p {
  font-size: 15px;
  font-weight: 600;
  color: var(--slate-600);
  margin-bottom: 28px;
  background: var(--bg-white);
  padding: 12px 24px;
  border-radius: 30px;
  display: inline-block;
  box-shadow: 0 4px 12px rgba(0,0,0,0.03);
  border: 1px solid var(--border-color);
}

/* =========================================================
   TÜM SINAVLAR İÇİN ORTAK ÇÖZÜM ALANI (Derin Gölgeli Test Area)
   ========================================================= */
.exam-area,
#online-test-area,
#mv-open-exam-area,
#mv-match-board-container {
  border: none;
  border-radius: 16px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.06);
  background: var(--bg-white);
  padding: 40px;
  position: relative;
}

.exam-question-content, #soru-alani {
  border: none !important;
  border-radius: 0;
  background: transparent;
  padding: var(--spacing-xl) 0;
  text-align: center;
}

/* =========================================================
   PRIMARY BUTTON (Sınava Başla Butonu)
   ========================================================= */
.exam-btn-primary, #start-test-btn, #mv-open-start-btn, #mv-match-start-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  background: var(--primary-color) !important;
  color: #fff !important;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: var(--transition-normal);
  border: none;
  cursor: pointer;
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  box-shadow: 0 4px 12px rgba(99,102,241,0.25);
}

.exam-btn-primary:hover, #start-test-btn:hover, #mv-open-start-btn:hover, #mv-match-start-btn:hover {
  background: var(--primary-hover) !important;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(99,102,241,0.35);
}

/* =========================================================
   NAVİGASYON (Soru Numaraları) - ORTAK
   ========================================================= */
.online-test-nav, .exam-nav-inner, .mv-open-nav-inner {
  display: flex;
  gap: var(--spacing-sm);
  margin-bottom: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  padding: var(--spacing-md) 0;
}

.online-test-nav .nav-item, .exam-nav-dot, .mv-open-nav-dot {
  width: 38px;
  height: 38px;
  line-height: 38px;
  border-radius: var(--radius-round);
  background-color: var(--bg-white);
  border: 2px solid var(--border-light);
  text-align: center;
  cursor: pointer;
  font-weight: var(--font-weight-bold);
  transition: var(--transition-fast);
  font-size: 14px;
}

.online-test-nav .nav-item.marked, .online-test-nav .nav-item.is-answered, .exam-nav-dot.is-answered {
  background-color: var(--primary-color) !important;
  color: #fff !important;
  border-color: var(--primary-color) !important;
}

.online-test-nav .nav-item.active, .online-test-nav .nav-item.is-active, .exam-nav-dot.is-active {
  background-color: var(--primary-color) !important;
  color: #fff !important;
  border-color: var(--primary-color) !important;
  box-shadow: 0 0 5px rgba(99, 102, 241, 0.4);
  transform: scale(1.05);
}

.online-test-nav .nav-item.empty {
  background-color: var(--bg-white);
  color: #333;
  border-color: var(--border-light);
}

.online-test-nav .nav-item:hover, .exam-nav-dot:hover {
  opacity: 0.85;
  transform: scale(1.1);
}

/* =========================================================
   KONTROL BUTONLARI (Önceki, Sonraki, Bitir)
   ========================================================= */
.exam-controls, #quiz-controls, #mv-match-controls, #open-quiz-controls, #mv-open-quiz-controls {
  margin-top: var(--spacing-xl);
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.exam-controls .btn, #quiz-controls .btn, #mv-match-controls .btn, #open-quiz-controls .btn, #mv-open-quiz-controls .btn {
  flex: 1;
  font-family: 'Sora', sans-serif;
  font-weight: 700 !important;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 12px 20px !important;
  border-radius: var(--radius-sm) !important;
  transition: all 0.2s ease !important;
  border: none !important;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

/* Önceki Butonu (Gri/Slate) */
.exam-controls .btn:first-child, #quiz-controls .btn:first-child, #mv-match-controls .btn:first-child, #open-quiz-controls .btn:first-child, #mv-open-quiz-controls .btn:first-child {
  background: var(--slate-100) !important;
  color: var(--slate-600) !important;
}
.exam-controls .btn:first-child:hover, #quiz-controls .btn:first-child:hover, #mv-match-controls .btn:first-child:hover, #open-quiz-controls .btn:first-child:hover, #mv-open-quiz-controls .btn:first-child:hover {
  background: var(--slate-200) !important;
  transform: translateX(-3px);
  box-shadow: none;
}

/* Sonraki Butonu (Temanın Mavi/Primary Rengi) */
.exam-controls .btn:nth-child(2), #quiz-controls .btn:nth-child(2), #mv-match-controls .btn:nth-child(2), #open-quiz-controls .btn:nth-child(2), #mv-open-quiz-controls .btn:nth-child(2) {
  background: var(--primary-color) !important;
  color: #fff !important;
  box-shadow: 0 4px 12px rgba(99,102,241,0.2);
}
.exam-controls .btn:nth-child(2):hover, #quiz-controls .btn:nth-child(2):hover, #mv-match-controls .btn:nth-child(2):hover, #open-quiz-controls .btn:nth-child(2):hover, #mv-open-quiz-controls .btn:nth-child(2):hover {
  background: var(--primary-hover) !important;
  transform: translateX(3px);
}

/* Bitir Butonu (Yeşil/Emerald) */
.exam-controls .btn:last-child, #quiz-controls .btn:last-child, #mv-match-controls .btn:last-child, #open-quiz-controls .btn:last-child, #mv-open-quiz-controls .btn:last-child {
  background: var(--emerald) !important;
  color: #fff !important;
  box-shadow: 0 4px 12px rgba(16,185,129,0.2);
}
.exam-controls .btn:last-child:hover, #quiz-controls .btn:last-child:hover, #mv-match-controls .btn:last-child:hover, #open-quiz-controls .btn:last-child:hover, #mv-open-quiz-controls .btn:last-child:hover {
  background: #059669 !important;
  transform: translateY(-2px);
}

/* =========================================
   GÖRSEL OPTİMİZASYONU (Soru ve Sonuç Ekranı)
========================================= */
#soru-alani img, .exam-question-content img, #sonuc-ekrani .card img.img-fluid, .mv-match-item-img {
    max-height: 350px;
    width: auto;
    border-radius: 8px;
    margin: 0 auto 24px;
    display: block;
    object-fit: contain;
}

/* =========================================================
   SONUÇ EKRANI VE LİDERLİK TABLOSU
   ========================================================= */
.exam-result .alert, #sonuc-ekrani .alert, #open-sonuc-ekrani .alert {
  background: var(--success-light);
  border: 1px solid var(--success-color);
  color: var(--success-color);
  padding: 16px;
  border-radius: var(--radius-md);
  font-weight: 600;
  margin-bottom: 20px;
}

.exam-details .card, #detaylar .card, #open-detaylar .card {
  border-radius: var(--radius-md);
  background: var(--bg-white);
  border: 1px solid var(--border-color);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--shadow-sm);
}

.exam-leaderboard, .liderlik-tablosu { margin-top: 30px; overflow-x: auto; }
.exam-leaderboard table, .liderlik-tablosu table { width: 100%; min-width: 320px; border-collapse: collapse; }
.exam-leaderboard th, .liderlik-tablosu th { background-color: var(--bg-light); font-weight: 700; }
.exam-leaderboard th, .exam-leaderboard td, .liderlik-tablosu th, .liderlik-tablosu td { padding: 12px !important; text-align: center; border: 1px solid var(--border-color); }

/* Misafir İnput */
.exam-guest-input, .mv-match-guest-input, .mv-open-guest-input {
  width: 100%; padding: 12px 16px; border: 1px solid var(--border-color); border-radius: var(--radius-lg); outline: none; font-family: 'Sora', sans-serif; font-size: 15px; font-weight: 500; color: var(--text, #1e293b); background: var(--bg-white, #fff); transition: var(--transition-fast);
}
.exam-guest-input:focus, .mv-match-guest-input:focus, .mv-open-guest-input:focus {
  border-color: var(--primary-color); box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}
.exam-guest-input::placeholder, .mv-match-guest-input::placeholder, .mv-open-guest-input::placeholder {
  color: var(--slate-400, #94a3b8); font-weight: 400;
}

/* MCQ Misafir Kutusu */
.mcq-guest-box {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  min-height: 300px; padding: 40px 30px; text-align: center;
}

/* Sonuç İstatistik Kutuları (MCQ) */
.mcq-result-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 16px;
}
.mcq-stat-item {
  padding: 14px 12px; border-radius: var(--radius-md, 8px); font-weight: 700; font-size: 14px; text-align: center;
}
.mcq-stat-dogru { background: var(--success-light, rgba(16,185,129,0.1)); color: var(--success-color, #10b981); border: 1px solid var(--success-color, #10b981); }
.mcq-stat-yanlis { background: var(--danger-light, rgba(236,72,153,0.1)); color: var(--danger-color, #ec4899); border: 1px solid var(--danger-color, #ec4899); }
.mcq-stat-bos { background: rgba(245,158,11,0.1); color: var(--warning-color, #f59e0b); border: 1px solid var(--warning-color, #f59e0b); }

/* =========================================================
   DARK MODE ORTAK UYUMU
   ========================================================= */
[data-theme="dark"] .exam-start, 
[data-theme="dark"] #online-test-start, 
[data-theme="dark"] #mv-open-exam-start, 
[data-theme="dark"] #mv-match-exam-start { 
  background: linear-gradient(to bottom right, var(--card), rgba(99,102,241,0.05)); 
  border-color: var(--border); 
  box-shadow: 0 10px 30px rgba(0,0,0,0.2); 
}

[data-theme="dark"] .exam-start h3, [data-theme="dark"] .exam-start h4, [data-theme="dark"] .exam-start h2,
[data-theme="dark"] #online-test-start h3, [data-theme="dark"] #online-test-start h4, [data-theme="dark"] #online-test-start h2,
[data-theme="dark"] #mv-open-exam-start h3, [data-theme="dark"] #mv-open-exam-start h4, [data-theme="dark"] #mv-open-exam-start h2,
[data-theme="dark"] #mv-match-exam-start h3, [data-theme="dark"] #mv-match-exam-start h4, [data-theme="dark"] #mv-match-exam-start h2 { 
  color: #ffffff; 
}

[data-theme="dark"] .exam-start .text-muted, [data-theme="dark"] .exam-start p,
[data-theme="dark"] #online-test-start .text-muted, [data-theme="dark"] #online-test-start p,
[data-theme="dark"] #mv-open-exam-start .text-muted, [data-theme="dark"] #mv-open-exam-start p,
[data-theme="dark"] #mv-match-exam-start .text-muted, [data-theme="dark"] #mv-match-exam-start p { 
  background: var(--slate-800); 
  color: var(--slate-300); 
  border-color: var(--slate-700); 
  box-shadow: 0 4px 12px rgba(0,0,0,0.2); 
}

[data-theme="dark"] .exam-area,
[data-theme="dark"] #online-test-area,
[data-theme="dark"] #mv-open-exam-area,
[data-theme="dark"] #mv-match-board-container { 
  background: var(--card); 
  box-shadow: 0 10px 40px rgba(0,0,0,0.3); 
}

[data-theme="dark"] .exam-header, [data-theme="dark"] #quiz-header, [data-theme="dark"] #mv-match-header {
  background: rgba(255,255,255,0.03); border-color: var(--border); color: var(--text);
}

[data-theme="dark"] .online-test-nav .nav-item.marked,
[data-theme="dark"] .online-test-nav .nav-item.is-answered,
[data-theme="dark"] .exam-nav-dot.is-answered {
  background-color: var(--primary-color) !important; color: #fff !important; border-color: var(--primary-color) !important;
}

[data-theme="dark"] .online-test-nav .nav-item.empty, [data-theme="dark"] .exam-nav-dot {
  background-color: rgba(255,255,255,0.05); color: var(--text); border-color: var(--border);
}

[data-theme="dark"] .exam-guest-input, [data-theme="dark"] .mv-match-guest-input, [data-theme="dark"] .mv-open-guest-input {
  background: rgba(255,255,255,0.04); border-color: var(--border); color: var(--text);
}
[data-theme="dark"] .exam-guest-input::placeholder, [data-theme="dark"] .mv-match-guest-input::placeholder, [data-theme="dark"] .mv-open-guest-input::placeholder {
  color: var(--slate-500);
}
[data-theme="dark"] .mcq-guest-box { background: transparent; }
[data-theme="dark"] .mcq-stat-dogru { background: rgba(16,185,129,0.15); border-color: rgba(16,185,129,0.4); }
[data-theme="dark"] .mcq-stat-yanlis { background: rgba(236,72,153,0.15); border-color: rgba(236,72,153,0.4); }
[data-theme="dark"] .mcq-stat-bos { background: rgba(245,158,11,0.15); border-color: rgba(245,158,11,0.4); }

[data-theme="dark"] .liderlik-tablosu th, [data-theme="dark"] .exam-leaderboard th {
  background: rgba(255,255,255,0.03); color: var(--text);
}

[data-theme="dark"] .liderlik-tablosu td, [data-theme="dark"] .exam-leaderboard td {
  border-color: var(--border); color: var(--text);
}

/* =========================================================
   MOBİL UYUM (Responsive)
   ========================================================= */
@media (max-width: 768px) {
  .exam-start, #online-test-start, #mv-open-exam-start, #mv-match-exam-start { 
    padding: 30px 20px; min-height: 320px; 
  }
  .exam-start h3, #online-test-start h3, #mv-open-exam-start h3, #mv-match-exam-start h3,
  .exam-start h4, #online-test-start h4, #mv-open-exam-start h4, #mv-match-exam-start h4,
  .exam-start h2, #online-test-start h2, #mv-open-exam-start h2, #mv-match-exam-start h2 { 
    font-size: 22px; 
  }
  .exam-start .text-muted, .exam-start p,
  #online-test-start .text-muted, #online-test-start p,
  #mv-open-exam-start .text-muted, #mv-open-exam-start p,
  #mv-match-exam-start .text-muted, #mv-match-exam-start p { 
    font-size: 14px; padding: 10px 16px; 
  }
  .exam-area, #online-test-area, #mv-open-exam-area, #mv-match-board-container { 
    padding: 16px 14px; border-radius: 12px; 
  }
  .exam-controls, #quiz-controls, #mv-match-controls, #open-quiz-controls, #mv-open-quiz-controls {
    flex-direction: column; gap: 12px;
  }
  .exam-controls .btn, #quiz-controls .btn, #mv-match-controls .btn, #open-quiz-controls .btn, #mv-open-quiz-controls .btn {
    width: 100%;
  }
  .exam-btn-primary, #start-test-btn, #mv-open-start-btn, #mv-match-start-btn {
    padding: var(--spacing-md) var(--spacing-xl); font-size: 14px;
  }
  #soru-alani img, .exam-question-content img, #sonuc-ekrani .card img.img-fluid, .mv-match-item-img {
    max-height: 220px;
  }
  .exam-nav-dot, .online-test-nav .nav-item {
    width: 34px; height: 34px; line-height: 34px; font-size: 13px;
  }
  /* MCQ Sonuç istatistikleri mobilde */
  .mcq-result-stats {
    grid-template-columns: 1fr; gap: 8px;
  }
  .mcq-guest-box {
    padding: 30px 20px; min-height: 260px;
  }
  /* Soru alanı mobil padding */
  #soru-alani {
    padding: 12px 0;
  }
  /* Quiz header mobil */
  #quiz-header, #mv-match-header, #open-quiz-header, #mv-open-quiz-header {
    flex-wrap: wrap; gap: 8px; font-size: 13px; padding: 12px;
  }
  /* Seçenek kartları mobilde genişle */
  .secenek-grid {
    gap: 8px;
  }
  .secenek-kart {
    flex: 1 1 calc(50% - 8px); max-width: 100%; min-width: 0;
  }
}

/* =========================================================
   TAM EKRAN (FULLSCREEN) DESTEĞİ
   ========================================================= */
#toggle-fullscreen, .exam-fullscreen-btn, #mv-match-toggle-fullscreen, #open-toggle-fullscreen, #mv-open-toggle-fullscreen {
  background-color: transparent; color: var(--slate-600); padding: 0; border: none; cursor: pointer; font-size: 18px;
}
#toggle-fullscreen:hover, .exam-fullscreen-btn:hover {
  color: var(--primary-color);
}
body.fullscreen-active .exam-wrap, body.fullscreen-active #online-test-wrap, body.fullscreen-active #mv-open-exam-wrap, body.fullscreen-active #mv-match-exam-wrap {
  position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 99999; background: var(--bg-white); padding: var(--spacing-xl); overflow-y: auto; margin: 0;
}
body.fullscreen-active .exam-header, body.fullscreen-active #quiz-header, body.fullscreen-active #open-quiz-header, body.fullscreen-active #mv-open-quiz-header, body.fullscreen-active #mv-match-header {
  background-color: var(--bg-white) !important; color: #000 !important; border: 1px solid #ddd;
}
[data-theme="dark"] body.fullscreen-active .exam-wrap, [data-theme="dark"] body.fullscreen-active #online-test-wrap, [data-theme="dark"] body.fullscreen-active #mv-open-exam-wrap, [data-theme="dark"] body.fullscreen-active #mv-match-exam-wrap {
  background: var(--bg);
}