/* ==============================
   ANKARCHAIN - LOGISTICS OPERATING SYSTEM
   Brand Colors + Light/Dark Mode
   ============================== */

:root {
  /* Modo Claro (por defecto) */
  --primary: #086bcf;
  --primary-light: #dbeafe;
  --accent: #00C1B5;
  --bg-body: #f9fafb;
  --bg-surface: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --border-color: #e2e8f0;
  --shadow: 0 2px 6px rgba(0,0,0,0.05);
}

[data-theme="dark"] {
  /* Modo Oscuro */
  --primary: #4da6ff;
  --primary-light: rgba(77, 166, 255, 0.15);
  --accent: #2af8eb;
  --bg-body: #121826;
  --bg-surface: #1e293b;
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --border-color: #334155;
  --shadow: 0 2px 6px rgba(0,0,0,0.2);
}

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

body {
  font-family: 'Inter', 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background-color: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color 0.3s, color 0.3s;
}

/* ======== HEADER & NAVBAR ======== */
.main-header {
  background-color: var(--bg-surface) !important;
  border-bottom: 1px solid var(--border-color) !important;
  box-shadow: var(--shadow);
  transition: background-color 0.3s, border-color 0.3s;
}

.main-header .navbar-brand,
.main-header .brand-text {
  color: var(--primary) !important;
  font-weight: 700;
}

.main-header .nav-link {
  color: var(--text-primary) !important;
}

.main-header .nav-link:hover {
  color: var(--primary) !important;
}

/* Botón de modo oscuro */
.theme-toggle {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 4px;
  transition: background 0.2s;
}

.theme-toggle:hover {
  background: var(--border-color);
  color: var(--text-primary);
}

/* ======== SIDEBAR ======== */
.main-sidebar {
  background-color: var(--bg-surface) !important;
  border-right: 1px solid var(--border-color) !important;
  box-shadow: 2px 0 8px rgba(0,0,0,0.08);
  transition: background-color 0.3s, border-color 0.3s;
}

.main-sidebar .brand-link {
  background-color: var(--bg-surface) !important;
  border-bottom: 1px solid var(--border-color) !important;
  height: 60px;
}

.main-sidebar .brand-link img {
  width: 40px;
  height: 40px;
  margin-right: 10px;
}

.main-sidebar .brand-link .brand-text {
  color: var(--primary) !important;
  font-weight: 700;
  font-size: 1.2rem;
}

.main-sidebar .nav-sidebar .nav-item > .nav-link {
  color: var(--text-primary) !important;
  border-left: 3px solid transparent;
}

.main-sidebar .nav-sidebar .nav-item > .nav-link:hover,
.main-sidebar .nav-sidebar .nav-item.menu-open > .nav-link,
.main-sidebar .nav-sidebar .nav-item > .nav-link.active {
  background-color: var(--primary-light) !important;
  color: var(--primary) !important;
  border-left: 3px solid var(--primary) !important;
}

/* ======== CONTENT HEADER (Dashboard Title) ======== */
.content-header {
  background-color: var(--bg-surface) !important;
  border-bottom: 1px solid var(--border-color) !important;
  transition: background-color 0.3s, border-color 0.3s;
}

.content-header h1,
.content-header h2,
.content-header h3,
.content-header h4,
.content-header h5,
.content-header h6 {
  color: var(--text-primary) !important;
  font-weight: 700 !important;
}

/* ======== CONTENT AREA ======== */
.content {
  background-color: var(--bg-body) !important;
}

/* ======== BUTTONS ======== */
.btn-primary {
  background-color: var(--primary) !important;
  border-color: var(--primary) !important;
  color: white !important;
  font-weight: 600;
}

.btn-primary:hover {
  background-color: #075aa5 !important;
  border-color: #075aa5 !important;
}

.btn-accent {
  background-color: var(--accent) !important;
  border-color: var(--accent) !important;
  color: #0f172a !important;
  font-weight: 600;
}

.btn-accent:hover {
  background-color: #00a89c !important;
  border-color: #00a89c !important;
}

/* ======== CARDS & PANELS ======== */
.card {
  background-color: var(--bg-surface) !important;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  box-shadow: var(--shadow);
  color: var(--text-primary);
  transition: background-color 0.3s, border-color 0.3s, color 0.3s;
}

.card-header {
  background-color: var(--bg-surface) !important;
  border-bottom: 1px solid var(--border-color) !important;
  font-weight: 600;
  padding: 1rem 1.25rem;
}

.card-body {
  padding: 1.25rem;
}

/* ======== FORMS ======== */
.form-control {
  background-color: var(--bg-surface) !important;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  color: var(--text-primary) !important;
  padding: 0.5rem 0.75rem;
  font-size: 0.9rem;
}

.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(8, 107, 207, 0.15);
}

.input-group-text {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 6px 0 0 6px;
  color: var(--text-primary);
}

/* ======== TABLES ======== */
.table {
  color: var(--text-primary);
}

.table th {
  background-color: var(--bg-surface);
  font-weight: 600;
  border-top: 2px solid var(--border-color);
}

.table td,
.table th {
  vertical-align: middle;
  padding: 0.75rem;
}

.table-hover tbody tr:hover {
  background-color: var(--primary-light);
}

/* ======== LOGIN PAGE ======== */
.login-page .login-box {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
}

.login-page .card-header {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  text-align: center;
  padding: 1rem;
}

.login-page .card-header .h3 {
  color: var(--primary);
  font-weight: 700;
}

.login-page .btn-primary {
  width: 100%;
  margin-top: 1rem;
  font-weight: 600;
}

/* ======== ALERTS ======== */
.alert {
  border-radius: 6px;
  font-weight: 500;
}

.alert-success {
  background-color: rgba(0, 193, 181, 0.1);
  border-color: var(--accent);
  color: #008c7b;
}

.alert-danger {
  background-color: rgba(248, 215, 218, 0.8);
  border-color: #f5c6cb;
  color: #721c24;
}

/* ======== FOOTER ======== */
.main-footer {
  background-color: var(--bg-surface) !important;
  border-top: 1px solid var(--border-color) !important;
  padding: 1rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* ======== TYPOGRAPHY & LINKS ======== */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-primary);
  font-weight: 700;
}

p, li, label {
  color: var(--text-primary);
  font-weight: 400;
}

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

a:hover {
  color: var(--primary);
  text-decoration: underline;
}

/* ======== RESPONSIVE ======== */
@media (max-width: 768px) {
  .login-box {
    margin: 10% auto;
    width: 90%;
  }
}