/* ============================================================================
   Hafriyat Sistemi — Ana Stil Dosyası (Design System)
   
   Tasarım: Premium Dark IoT Dashboard
   Font: Inter (Google Fonts)
   Renk Paleti: Slate/Navy arka plan, Electric Blue vurgular
   ============================================================================ */

/* ---------- Google Font ---------- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ============================================================================
   CSS DEĞİŞKENLERİ (Design Tokens)
   ============================================================================ */
:root {
  /* Arka plan */
  --bg-primary: #0a0e1a;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.04);
  --bg-hover: rgba(255, 255, 255, 0.06);
  --bg-input: rgba(255, 255, 255, 0.05);

  /* Metin */
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-accent: #60a5fa;

  /* Aksan renkleri */
  --accent: #3b82f6;
  --accent-light: #60a5fa;
  --accent-glow: rgba(59, 130, 246, 0.25);
  --accent-gradient: linear-gradient(135deg, #3b82f6, #06b6d4);

  /* Durum renkleri */
  --success: #10b981;
  --success-bg: rgba(16, 185, 129, 0.12);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.12);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.12);
  --critical: #f43f5e;
  --critical-bg: rgba(244, 63, 94, 0.12);
  --info: #06b6d4;
  --info-bg: rgba(6, 182, 212, 0.12);

  /* Kenarlık */
  --border: rgba(255, 255, 255, 0.06);
  --border-light: rgba(255, 255, 255, 0.1);

  /* Gölge */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 20px var(--accent-glow);

  /* Kenar yuvarlaklığı */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Sidebar */
  --sidebar-width: 260px;
  --sidebar-collapsed: 70px;
  --header-height: 64px;

  /* Geçiş */
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================================================
   RESET & GLOBALS
   ============================================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 14px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

a { color: var(--accent-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--text-muted); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-secondary); }

/* ============================================================================
   LOGIN SAYFASI
   ============================================================================ */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-primary);
  position: relative;
  overflow: hidden;
}

.login-page::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  top: -200px; right: -100px;
  animation: float 8s ease-in-out infinite;
}

.login-page::after {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.15) 0%, transparent 70%);
  bottom: -100px; left: -50px;
  animation: float 10s ease-in-out infinite reverse;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(30px, -30px); }
}

.login-card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: 3rem;
  width: 100%;
  max-width: 420px;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow-lg);
}

.login-logo {
  text-align: center;
  margin-bottom: 2rem;
}

.login-logo h1 {
  font-size: 1.6rem;
  font-weight: 700;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-logo p {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: 0.3rem;
}

/* ============================================================================
   FORM ELEMENTLERİ
   ============================================================================ */
.form-group { margin-bottom: 1.2rem; }

.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}

.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-input::placeholder { color: var(--text-muted); }

select.form-input {
  appearance: none;
  background-color: var(--bg-input);
  color: var(--text-primary);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

select.form-input option {
  background-color: var(--bg-card);
  color: var(--text-primary);
}

/* ============================================================================
   BUTONLAR
   ============================================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.7rem 1.4rem;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.btn-block { width: 100%; }

.btn-success { background: var(--success); color: #fff; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg-hover); color: var(--text-primary); }

.btn-sm { padding: 0.4rem 0.8rem; font-size: 0.75rem; }

.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* ============================================================================
   SIDEBAR
   ============================================================================ */
.app-layout { display: flex; min-height: 100vh; }

.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 2000;
  transition: var(--transition-slow);
}

.sidebar-header {
  padding: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  border-bottom: 1px solid var(--border);
  min-height: var(--header-height);
}

.sidebar-header .logo-icon {
  width: 36px; height: 36px;
  background: var(--accent-gradient);
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.sidebar-header .logo-text {
  font-size: 1rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
}

.sidebar-nav { flex: 1; padding: 0.8rem; overflow-y: auto; }

.nav-section {
  margin-bottom: 1.5rem;
}

.nav-section-title {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 0 0.8rem;
  margin-bottom: 0.5rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.65rem 0.8rem;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
  white-space: nowrap;
}

.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }

.nav-item.active {
  background: var(--accent-glow);
  color: var(--accent-light);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 20%; bottom: 20%;
  width: 3px;
  background: var(--accent);
  border-radius: 2px;
}

.nav-item .nav-icon { font-size: 1.1rem; width: 22px; text-align: center; }

.nav-badge {
  margin-left: auto;
  background: var(--danger);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.15rem 0.45rem;
  border-radius: 9px;
  min-width: 18px;
  text-align: center;
  animation: pulse-badge 2s ease-in-out infinite;
}

@keyframes pulse-badge {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.1); }
}

.sidebar-footer {
  padding: 0.8rem;
  border-top: 1px solid var(--border);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
}

.user-info:hover { background: var(--bg-hover); }

.user-avatar {
  width: 34px; height: 34px;
  background: var(--accent-gradient);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}

.user-details { overflow: hidden; }
.user-name { font-size: 0.8rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.user-role { font-size: 0.7rem; color: var(--text-muted); }

/* ============================================================================
   HEADER
   ============================================================================ */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  transition: var(--transition-slow);
}

.header {
  height: var(--header-height);
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(10px);
}

.header-left { display: flex; align-items: center; gap: 1rem; }
.header-right { display: flex; align-items: center; gap: 1rem; }

.page-title {
  font-size: 1.1rem;
  font-weight: 700;
}

.header-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.25rem 0.6rem;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 600;
}

.badge-online { background: var(--success-bg); color: var(--success); }
.badge-offline { background: var(--danger-bg); color: var(--danger); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }

/* ============================================================================
   İÇERİK ALANI
   ============================================================================ */
.content { flex: 1; padding: 1.5rem; }

/* Grid */
.grid { display: grid; gap: 1.2rem; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ============================================================================
   KARTLAR
   ============================================================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
  overflow: hidden;
  transition: var(--transition);
}

.card:hover { border-color: var(--border-light); }

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.2rem;
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.card-body { padding: 1.2rem; }

/* Stat cards */
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.2rem;
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

.stat-icon {
  width: 46px; height: 46px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.stat-icon.blue { background: var(--accent-glow); color: var(--accent-light); }
.stat-icon.green { background: var(--success-bg); color: var(--success); }
.stat-icon.amber { background: var(--warning-bg); color: var(--warning); }
.stat-icon.red { background: var(--danger-bg); color: var(--danger); }
.stat-icon.cyan { background: var(--info-bg); color: var(--info); }

.stat-info { flex: 1; }
.stat-label { font-size: 0.75rem; color: var(--text-muted); font-weight: 500; margin-bottom: 0.2rem; }
.stat-value { font-size: 1.6rem; font-weight: 800; line-height: 1.2; }
.stat-change { font-size: 0.7rem; color: var(--success); margin-top: 0.2rem; }

/* ============================================================================
   TABLO
   ============================================================================ */
.table-wrapper { overflow-x: auto; }

.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  text-align: left;
  padding: 0.7rem 1rem;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

.data-table td {
  padding: 0.65rem 1rem;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.data-table tbody tr { transition: var(--transition); }
.data-table tbody tr:hover { background: var(--bg-hover); }

/* ============================================================================
   HARİTA
   ============================================================================ */
.map-container {
  width: 100%;
  height: 500px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
}

.map-container.fullscreen { height: calc(100vh - var(--header-height) - 3rem); }

/* Leaflet popup stil */
.leaflet-popup-content-wrapper {
  background: var(--bg-card) !important;
  color: var(--text-primary) !important;
  border: 1px solid var(--border) !important;
  border-radius: var(--radius-md) !important;
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-lg) !important;
}

.leaflet-popup-tip { background: var(--bg-card) !important; }

.vehicle-popup h4 { font-size: 0.9rem; margin-bottom: 0.5rem; color: var(--accent-light); }
.vehicle-popup .popup-row { display: flex; justify-content: space-between; padding: 0.2rem 0; font-size: 0.8rem; }
.vehicle-popup .popup-label { color: var(--text-muted); }
.vehicle-popup .popup-value { font-weight: 600; }

/* ============================================================================
   ALARM LİSTESİ
   ============================================================================ */
.alarm-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.8rem 1rem;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.alarm-item:hover { background: var(--bg-hover); }
.alarm-item:last-child { border-bottom: none; }

.alarm-severity {
  width: 8px; height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  animation: blink 2s ease-in-out infinite;
}

.alarm-severity.critical { background: var(--critical); box-shadow: 0 0 8px var(--critical); }
.alarm-severity.high { background: var(--danger); box-shadow: 0 0 8px var(--danger); }
.alarm-severity.medium { background: var(--warning); }
.alarm-severity.low { background: var(--info); }

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.alarm-info { flex: 1; min-width: 0; }
.alarm-type { font-size: 0.8rem; font-weight: 600; }
.alarm-desc { font-size: 0.75rem; color: var(--text-secondary); margin-top: 0.15rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.alarm-time { font-size: 0.7rem; color: var(--text-muted); white-space: nowrap; }

/* ============================================================================
   STATUS BADGES
   ============================================================================ */
.status-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-right: 0.4rem;
}

.status-dot.online { background: var(--success); box-shadow: 0 0 6px var(--success); }
.status-dot.offline { background: var(--text-muted); }

.tag {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
}

.tag-success { background: var(--success-bg); color: var(--success); }
.tag-warning { background: var(--warning-bg); color: var(--warning); }
.tag-danger { background: var(--danger-bg); color: var(--danger); }
.tag-info { background: var(--info-bg); color: var(--info); }

/* ============================================================================
   TOAST BİLDİRİMLER
   ============================================================================ */
.toast-container {
  position: fixed;
  top: 1rem; right: 1rem;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.8rem 1.2rem;
  min-width: 300px;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 0.8rem;
  animation: slideIn 0.3s ease;
}

.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.warning { border-left: 3px solid var(--warning); }
.toast.info { border-left: 3px solid var(--info); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ============================================================================
   MODAL
   ============================================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition);
}

.modal-overlay.active { opacity: 1; visibility: visible; }

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 520px;
  max-height: 85vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: var(--transition);
}

.modal-overlay.active .modal { transform: translateY(0); }

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.2rem 1.5rem;
  border-bottom: 1px solid var(--border);
}

.modal-title { font-size: 1rem; font-weight: 700; }
.modal-close { background: none; border: none; color: var(--text-muted); font-size: 1.3rem; cursor: pointer; }
.modal-body { padding: 1.5rem; }
.modal-footer { padding: 1rem 1.5rem; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: 0.8rem; }

/* ============================================================================
   YÜKLEME ANİMASYONU
   ============================================================================ */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.loading-overlay {
  position: absolute;
  inset: 0;
  background: rgba(10, 14, 26, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  border-radius: inherit;
}

/* ============================================================================
   SAYFA GİZLE/GÖSTER
   ============================================================================ */
.page { display: none; }
.page.active { display: block; animation: fadeIn 0.3s ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================================
   BOŞLUK & YARDIMCI
   ============================================================================ */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.gap-1 { gap: 0.5rem; }
.flex { display: flex; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.8rem; }
.fw-600 { font-weight: 600; }
.hidden { display: none !important; }

.empty-state {
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
}

.empty-state .empty-icon { font-size: 2.5rem; margin-bottom: 1rem; opacity: 0.5; }
.empty-state p { font-size: 0.9rem; }

/* ============================================================================
   RESPONSIVE
   ============================================================================ */
#menuToggle { display: none; margin-right: 1rem; }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  #menuToggle { display: inline-flex; }
  .sidebar {
    transform: translateX(-100%);
    box-shadow: 5px 0 25px rgba(0,0,0,0.5);
  }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; width: 100vw; }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .map-container { height: 350px; }
  .flex-between { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .flex-between .flex { flex-wrap: wrap; }
  .table-wrapper { overflow-x: auto; -webkit-overflow-scrolling: touch; }
}

/* ============================================================================
   ERİŞİLEBİLİRLİK
   ============================================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ============================================================================
   TAB YAPISI (Sanal Sınırlar / Güzergahlar)
   ============================================================================ */
.tab-bar {
  display: flex;
  gap: 0.25rem;
  background: var(--bg-glass);
  border-radius: var(--radius);
  padding: 0.2rem;
  border: 1px solid var(--border);
}

.tab-btn {
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 0.5rem 1rem;
  border-radius: calc(var(--radius) - 2px);
  cursor: pointer;
  font-size: 0.8rem;
  font-weight: 500;
  font-family: inherit;
  transition: all 0.2s;
  white-space: nowrap;
}

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

.tab-btn.active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px var(--accent-glow);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.25s ease;
}

/* ============================================================================
   TİP SEÇİM MODALİ (Bölge/Güzergah Ekle)
   ============================================================================ */
.type-selector-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  padding: 0.5rem 0;
}

.type-selector-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  padding: 1.25rem 0.75rem;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all 0.2s;
  text-align: center;
}

.type-selector-item:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.type-selector-item .icon {
  font-size: 1.75rem;
  line-height: 1;
}

.type-selector-item .label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-primary);
}

.type-selector-item .desc {
  font-size: 0.7rem;
  color: var(--text-muted);
  line-height: 1.3;
}

.type-selector-divider {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-muted);
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.type-selector-divider::before,
.type-selector-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ============================================================================
   KORİDOR SLIDER
   ============================================================================ */
.corridor-slider-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.corridor-slider-group input[type="range"] {
  flex: 1;
  accent-color: var(--accent);
  height: 6px;
}

.corridor-slider-group .corridor-value {
  min-width: 60px;
  text-align: right;
  font-weight: 600;
  color: var(--accent-light);
  font-size: 0.85rem;
}

/* ============================================================================
   ATAMA DURUM BADGE
   ============================================================================ */
.assignment-status {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 600;
}

.assignment-status.status-active {
  background: var(--success-bg);
  color: var(--success);
}

.assignment-status.status-completed {
  background: var(--info-bg);
  color: var(--info);
}

.assignment-status.status-cancelled {
  background: var(--danger-bg);
  color: var(--danger);
}