/* ==========================================
   1. KÖK DEĞİŞKENLER & TASARIM SİSTEMİ
   ========================================== */
:root {
  --primary: #008080;
  --primary-hover: #005f5f;
  --secondary: #ff9800;
  --danger: #d84554;
  --success: #1fc700;
  --info: #007fa5;
  --bg-main: #f4f6f9;
  --bg-card: #ffffff;
  --text-color: #2c3e50;
  --text-muted: #7f8c8d;
  --border-color: #e2e8f0;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 10px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 20px rgba(0,0,0,0.12);
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Font Tanımlamaları */
@font-face {
	font-family: 'Bahnschrift';
	src: url('../font/bahnschrift.ttf');
}
@font-face {
	font-family: 'Microsoft Yahei';
	src: url('../font/microsoftyahei.ttf');
}

/* Sıfırlama ve Temel Kurallar */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg-main);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  color: var(--text-color);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

/* ==========================================
   2. ÜST MENÜ & OTURUM BİLGİSİ
   ========================================== */
.oturumbilgi {
  background-color: #e0f9ff;
  width: 100%;
  padding: 10px 20px;
  border-bottom: 1px solid #b2ebf2;
  display: flex;
  justify-content: center;
  align-items: center;
}

.oturumbilgi strong {
  max-width: 1050px;
  width: 100%;
  font-size: 13px;
  color: #004d40;
  font-weight: 600;
  font-style: italic;
}

.oturumbilgi button {
  padding: 8px 16px;
  font-family: 'Microsoft Yahei', sans-serif;
  color: #fff;
  font-weight: bold;
  display: none;
  background: #441d59;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.menu {
  background-color: #005166;
  width: 100%;
  position: relative;
  z-index: 999;
  box-shadow: var(--shadow-md);
}

.open {
  display: none;
  color: #fff;
  padding: 15px 20px;
  cursor: pointer;
  align-items: center;
  justify-content: space-between;
}

.open img { height: 27px; }
.open strong { font-size: 14px; font-weight: bold; }

.menu ul {
  margin: 0 auto;
  max-width: 1050px;
  display: flex;
  list-style: none;
}

.menu ul li a {
  display: block;
  color: #fff;
  font-size: 14px;
  font-weight: bold;
  letter-spacing: .5px;
  padding: 16px 18px;
  position: relative;
  transition: color 0.2s;
}

.menu ul li a:hover {
  color: #e0f9ff;
  background: rgba(255, 255, 255, 0.1);
}

/* ==========================================
   3. PANEL & ANA DÜZEN ELEMANLARI
   ========================================== */
#ortaalan {
  width: 96%;
  max-width: 1400px;
  margin: 20px auto;
  padding: 20px;
  border: 1px solid var(--border-color);
  background: #fff;
  min-height: 800px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

#ortaalan img { border: 0; }
#orta_orta { width: 100%; margin-bottom: 40px; }

#ortaust {
  width: 100%;
  padding: 12px 0;
  border-bottom: 2px solid var(--secondary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.dersadlari {
  padding: 6px 14px;
  background: #f1f5f9;
  text-align: center;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
}

.divhr {
  width: 1px;
  height: 24px;
  background: var(--border-color);
  margin: 0 8px;
}

#sinavibitir {
  min-width: 140px;
  background: var(--danger);
  color: #fff;
  text-align: center;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  font-weight: bold;
  margin-left: auto;
  transition: var(--transition);
}
#sinavibitir:hover { opacity: 0.9; transform: translateY(-1px); }

/* ==========================================
   4. SORU VE TEST ALANLARI
   ========================================== */
#sorualan {
  width: 100%;
  display: flex;
  align-items: flex-start;
  gap: 15px;
  margin: 20px 0;
}

#sorugeri, #soruileri {
  width: 5%;
  min-width: 40px;
  padding-top: 50px;
}
#sorugeri img, #soruileri img { width: 100%; cursor: pointer; opacity: 0.7; transition: var(--transition); }
#sorugeri img:hover, #soruileri img:hover { opacity: 1; transform: scale(1.1); }

#soru { flex: 1; text-align: center; }
#soru img { max-width: 100%; height: auto; border-radius: var(--radius-sm); }

.secenek {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  background: #fff;
  color: var(--primary);
  margin: 6px;
  font-weight: bold;
  border: 2px solid var(--primary);
  border-radius: var(--radius-sm);
  min-width: 80px;
  transition: var(--transition);
}
.secenek:hover {
  background: var(--primary);
  color: #fff;
}

.testnumaralar {
  width: 100%;
  margin: 20px 0;
  border: 1px solid #fbcfe8;
  border-radius: var(--radius-md);
  background: #fff5f7;
  padding: 15px;
}

.testadi {
  width: 100%;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border-color);
  font-weight: bold;
  color: var(--text-color);
}

.testnolari {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.soruno {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #64748b;
  color: #fff;
  border-radius: var(--radius-sm);
  font-weight: 600;
  transition: var(--transition);
}
.soruno:hover { background: var(--secondary); }

/* ==========================================
   5. GİRİŞ VE ÜYELİK ALANLARI (#loginalan & #uyealan)
   ========================================== */
#loginalan, #uyealan {
  width: 100%;
  max-width: 700px;
  margin: 40px auto;
  padding: 30px;
  background: var(--bg-card);
  box-shadow: var(--shadow-md);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-color);
}

#lg_cerceve { width: 100%; }
#lg_text { width: 100%; font-size: 16px; text-align: center; font-weight: bold; margin-bottom: 20px; }
#lg_text img { max-width: 100%; }

.lg_input {
  width: 100%;
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
}

.lg_input input, .lg_input select {
  width: 100%;
  color: var(--text-color);
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-left: 5px solid var(--primary);
  background: #f8fafc;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.lg_input input:focus, .lg_input select:focus {
  outline: none;
  background: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 128, 128, 0.15);
}

.lg_input img { height: 48px; width: auto; cursor: pointer; }

/* ==========================================
   6. KARTLAR & GRID BİLEŞENLERİ
   ========================================== */
#testkuutlari {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  width: 100%;
  margin: 20px 0;
}

.testkutucerceve { width: 100%; }

.testkutu {
  width: 100%;
  min-height: 200px;
  background: #fff;
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: var(--transition);
}

.testkutu:hover {
  border-color: var(--secondary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.testkutu-str { text-align: center; font-weight: 600; }

.testkutubutton {
  padding: 10px;
  width: 100%;
  font-size: 13px;
  font-weight: bold;
  border-radius: var(--radius-sm);
  background: #ef6c00;
  color: #fff;
  transition: var(--transition);
}
.testkutubutton:hover { background: #e65100; }

.sinavkutu {
  min-width: 250px;
  background: #fff;
  box-shadow: var(--shadow-sm);
  margin: 10px 0;
  padding: 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  transition: var(--transition);
}
.sinavkutu:hover { background: #fffbeb; border-color: var(--secondary); cursor: pointer; }

/* Dökümanlar Alanı Grid */
.dokumanalani {
  width: 100%;
  padding: 20px;
  background: #0C7F8A;
  margin: 20px 0;
  border-radius: var(--radius-md);
}

.dokumanalani .dk_etiket {
  color: #fff;
  font-size: 16px;
  font-weight: bold;
  margin-bottom: 12px;
}

.dokumanalani .dk_liste {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 15px;
  background: transparent;
}

.dokumanalani .dk_icerik {
  background: #fff;
  padding: 12px;
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius-md);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: var(--transition);
}
.dokumanalani .dk_icerik:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.dokumanalani .dk_icerik img { max-width: 100%; height: auto; border-radius: var(--radius-sm); }

/* ==========================================
   7. TABLO VE BİLGİ SATIRLARI
   ========================================== */
.tablo, .tablecozulentestler {
  width: 100%;
  border-collapse: collapse;
  margin: 15px 0;
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.tablo th, .tablo td, 
.tablecozulentestler th, .tablecozulentestler td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

.bilgisatir {
  width: 100%;
  padding: 12px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ==========================================
   8. MODAL & POPUP PENCERELER
   ========================================== */
#epostaraporgonder, #sinifyukselt, #sorugetir {
  width: 90%;
  max-width: 500px;
  background: #fff;
  position: fixed;
  z-index: 9999;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 24px;
}

.bodygizle {
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 9998;
}

/* ==========================================
   9. MOBİL UYUM (RESPONSIVE)
   ========================================== */
@media (max-width: 768px) {
  .menu ul {
    display: none;
    flex-direction: column;
    width: 100%;
  }
  
  .menu.active ul { display: flex; }
  .open { display: flex; }

  #ortaalan, #loginalan, #uyealan {
    width: 95%;
    padding: 15px;
    margin: 10px auto;
  }

  #sorualan {
    flex-direction: column;
  }
  
  #sorugeri, #soruileri {
    width: 100%;
    padding-top: 0;
    display: flex;
    justify-content: space-between;
  }

  .kisiselveriler, .genelveriler {
    width: 100% !important;
    float: none !important;
  }
}