/* ==========================================================================
   NetVera Nakliye Scripti — Admin Panel Stilleri
   Tasarım: Modern, Temiz, Responsive (Min 20px Mobil Padding Kuralı)
   ========================================================================== */

:root {
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --sidebar-bg: #0f172a;
  --sidebar-hover: #1e293b;
  --sidebar-text: #94a3b8;
  --sidebar-active-text: #38bdf8;
  --bg-main: #f8fafc;
  --card-bg: #ffffff;
  --border-color: #e2e8f0;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --success: #10b981;
  --success-bg: #ecfdf5;
  --danger: #ef4444;
  --danger-bg: #fef2f2;
  --warning: #f59e0b;
  --warning-bg: #fffbeb;
  --info: #0284c7;
  --info-bg: #f0f9ff;
  --radius: 10px;
  --sidebar-width: 260px;
  --header-height: 68px;
  --transition: all 0.2s ease-in-out;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-main);
  font-size: 15px;
  line-height: 1.5;
  overflow-x: hidden;
}

/* ==========================================================================
   Admin Layout Yapısı
   ========================================================================== */

.admin-layout {
  display: flex;
  min-height: 100vh;
  width: 100%;
  overflow-x: hidden;
}

/* Sidebar */
.admin-sidebar {
  width: var(--sidebar-width);
  background-color: var(--sidebar-bg);
  color: #f8fafc;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 100;
  transition: var(--transition);
}

.sidebar-header {
  height: var(--header-height);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid #1e293b;
}

.brand-link {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: #ffffff;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.3px;
}

.brand-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: linear-gradient(135deg, #38bdf8, #2563eb);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
}

.sidebar-close-btn {
  display: none;
  background: transparent;
  border: none;
  color: #94a3b8;
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
}

.sidebar-nav {
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
  overflow-y: auto;
}

.nav-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: #475569;
  padding: 10px 12px 6px;
  font-weight: 600;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 14px;
  color: var(--sidebar-text);
  text-decoration: none;
  border-radius: 8px;
  font-weight: 500;
  font-size: 14px;
  transition: var(--transition);
}

.nav-item:hover {
  background-color: var(--sidebar-hover);
  color: #ffffff;
}

.nav-item.active {
  background-color: rgba(56, 189, 248, 0.12);
  color: var(--sidebar-active-text);
  font-weight: 600;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid #1e293b;
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background-color: rgba(255, 255, 255, 0.03);
  border-radius: 8px;
}

.user-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #334155;
  color: #f8fafc;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14px;
  flex-shrink: 0;
}

.user-details {
  overflow: hidden;
  flex: 1;
}

.user-name {
  font-size: 13px;
  font-weight: 600;
  color: #ffffff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-email {
  font-size: 11px;
  color: #94a3b8;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Ana İçerik Taşıyıcısı */
.admin-main {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 100vh;
}

/* Üst Bar (Header) */
.admin-header {
  height: var(--header-height);
  background-color: var(--card-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 0 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.menu-toggle-btn {
  display: none;
  background: #f1f5f9;
  border: 1px solid var(--border-color);
  color: var(--text-main);
  padding: 8px;
  border-radius: 8px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}

.header-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-main);
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

/* Profil Açılır Menüsü */
.profile-dropdown-container {
  position: relative;
}

.profile-trigger {
  display: flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  border: 1px solid transparent;
  padding: 6px 12px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-main);
  transition: var(--transition);
}

.profile-trigger:hover {
  background-color: #f1f5f9;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);
  border-radius: var(--radius);
  width: 210px;
  padding: 6px;
  display: none;
  flex-direction: column;
  gap: 2px;
  z-index: 60;
}

.dropdown-menu.show {
  display: flex;
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  text-decoration: none;
  color: var(--text-main);
  font-size: 13px;
  border-radius: 6px;
  transition: var(--transition);
}

.dropdown-item:hover {
  background-color: #f1f5f9;
}

.dropdown-item.danger {
  color: var(--danger);
}

.dropdown-item.danger:hover {
  background-color: var(--danger-bg);
}

.dropdown-divider {
  height: 1px;
  background-color: var(--border-color);
  margin: 4px 0;
}

/* İçerik Alanı */
.admin-content {
  flex: 1;
  padding: 28px;
  width: 100%;
}

.content-container {
  max-width: 1200px;
  margin: 0 auto;
}

/* Kartlar */
.card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.02);
}

.card-title {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-main);
}

.card-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

/* Grid & Dashboard Elemanları */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

.stat-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}

.stat-icon-wrapper {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background-color: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-info {
  overflow: hidden;
}

.stat-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-value {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-main);
  margin-top: 2px;
}

/* Form Elemanları */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-main);
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: #ffffff;
  color: var(--text-main);
  outline: none;
  transition: var(--transition);
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-text {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 6px;
}

/* Butonlar */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition);
}

.btn-primary {
  background-color: var(--primary);
  color: #ffffff;
}

.btn-primary:hover {
  background-color: var(--primary-hover);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-outline:hover {
  background-color: #f1f5f9;
}

.btn-block {
  width: 100%;
}

/* Flash Mesaj Bildirimleri */
.alert {
  padding: 14px 18px;
  border-radius: 8px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
}

.alert-success {
  background-color: var(--success-bg);
  border: 1px solid #a7f3d0;
  color: #065f46;
}

.alert-error {
  background-color: var(--danger-bg);
  border: 1px solid #fecaca;
  color: #991b1b;
}

.alert-warning {
  background-color: var(--warning-bg);
  border: 1px solid #fde68a;
  color: #92400e;
}

.alert-info {
  background-color: var(--info-bg);
  border: 1px solid #bae6fd;
  color: #075985;
}

/* Rozetler (Badges) */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 9999px;
}

.badge-success {
  background-color: #d1fae5;
  color: #065f46;
}

.badge-info {
  background-color: #e0f2fe;
  color: #0369a1;
}

/* Backdrop Karartma */
.sidebar-backdrop {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(2px);
  z-index: 90;
}

/* ==========================================================================
   Admin Giriş Sayfası (Auth)
   ========================================================================== */

.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px; /* Min 20px responsive padding */
  background: radial-gradient(circle at top right, #1e293b, #0f172a);
}

.auth-card {
  width: 100%;
  max-width: 420px;
  background: #ffffff;
  border-radius: 16px;
  padding: 36px 30px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.08);
}

.auth-header {
  text-align: center;
  margin-bottom: 28px;
}

.auth-brand-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  border-radius: 12px;
  background: linear-gradient(135deg, #38bdf8, #2563eb);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
}

.auth-title {
  font-size: 22px;
  font-weight: 700;
  color: #0f172a;
}

.auth-subtitle {
  font-size: 13px;
  color: #64748b;
  margin-top: 6px;
}

/* ==========================================================================
   Responsive & Mobil Kuralları (Min 20px Boşluk, Taşma Engeli)
   ========================================================================== */

@media (max-width: 991px) {
  .admin-sidebar {
    transform: translateX(-100%);
  }

  .admin-sidebar.open {
    transform: translateX(0);
  }

  .sidebar-close-btn {
    display: block;
  }

  .admin-main {
    margin-left: 0;
  }

  .menu-toggle-btn {
    display: inline-flex;
  }

  .sidebar-backdrop.show {
    display: block;
  }

  .admin-header {
    padding: 0 20px; /* Min 20px kuralı */
  }

  .admin-content {
    padding: 24px 20px; /* Min 20px kuralı */
  }
}

@media (max-width: 640px) {
  .auth-card {
    padding: 28px 20px; /* Min 20px kuralı */
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .card {
    padding: 20px; /* Min 20px kuralı */
  }
}

/* ==========================================================================
   Standart Reusable Media Picker Bileşeni
   ========================================================================== */

.media-picker-box {
  margin-bottom: 20px;
}

.media-picker-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: var(--radius);
  padding: 16px;
  transition: var(--transition);
}

.media-picker-card:hover {
  border-color: #cbd5e1;
}

.media-picker-preview-container {
  width: 100%;
  max-width: 100%;
  border-radius: 8px;
  border: 2px dashed #cbd5e1;
  background: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
  margin-bottom: 12px;
}

.media-picker-preview-container.preview-avatar {
  border-radius: 50%;
  border-style: solid;
  border-color: #e2e8f0;
}

.media-picker-preview-img {
  width: 100%;
  height: 100%;
  display: block;
}

.media-picker-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: #94a3b8;
  padding: 16px;
  text-align: center;
}

.media-picker-empty-icon {
  width: 36px;
  height: 36px;
  opacity: 0.6;
}

.media-picker-empty-text {
  font-size: 13px;
  font-weight: 500;
}

.media-picker-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.media-picker-controls .btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  padding: 7px 12px;
  line-height: 1.4;
  white-space: nowrap;
}

.media-picker-feedback {
  margin-top: 8px;
  font-size: 12px;
  min-height: 18px;
}

.media-picker-filename {
  color: #475569;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  word-break: break-all;
}

.media-picker-msg-success {
  color: var(--success);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.media-picker-msg-error {
  color: var(--danger);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.media-picker-msg-loading {
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ==========================================================================
   Merkezi Medya Kütüphanesi Modalı
   ========================================================================== */

.netvera-media-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99999;
  background-color: rgba(15, 23, 42, 0.65);
  backdrop-filter: blur(4px);
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: modalFadeIn 0.15s ease-out;
}

.netvera-media-modal.show {
  display: flex;
}

.netvera-media-dialog {
  background: #ffffff;
  width: 100%;
  max-width: 900px;
  max-height: 85vh;
  border-radius: 12px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2), 0 10px 10px -5px rgba(0, 0, 0, 0.1);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.netvera-media-header {
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.netvera-media-header h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-main);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 8px;
}

.netvera-media-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.netvera-media-close:hover {
  background: #f1f5f9;
  color: var(--text-main);
}

.netvera-media-body {
  padding: 20px 24px;
  overflow-y: auto;
  flex: 1;
}

.netvera-media-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 14px;
}

.netvera-media-item {
  position: relative;
  aspect-ratio: 1 / 1;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  background: #f8fafc;
  transition: var(--transition);
}

.netvera-media-item:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.netvera-media-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.netvera-media-item-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(15, 23, 42, 0.8);
  color: #ffffff;
  padding: 4px 6px;
  font-size: 11px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.netvera-media-footer {
  padding: 14px 24px;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #f8fafc;
}

@keyframes modalFadeIn {
  from { opacity: 0; transform: scale(0.98); }
  to { opacity: 1; transform: scale(1); }
}

@media (max-width: 640px) {
  .netvera-media-modal {
    padding: 10px;
  }
  .netvera-media-header,
  .netvera-media-body,
  .netvera-media-footer {
    padding: 14px 16px;
  }
  .netvera-media-grid {
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 10px;
  }
}