/* ============================================================
   FEROX Trading — Core Application Styles
   ============================================================ */

:root,
[data-bs-theme="light"] {
  --primary: #6366f1;
  --primary-rgb: 99, 102, 241;
  --primary-dark: #4f46e5;
  --primary-light: #818cf8;

  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #06b6d4;

  --body-bg: #f1f5f9;
  --body-color: #1e293b;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-solid: #ffffff;
  --surface-hover: rgba(255, 255, 255, 0.9);
  --border-color: rgba(148, 163, 184, 0.25);
  --border-strong: rgba(148, 163, 184, 0.4);

  --sidebar-bg: rgba(255, 255, 255, 0.85);
  --sidebar-width: 270px;
  --navbar-height: 70px;

  --text-muted: #64748b;
  --text-heading: #0f172a;
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 20px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 10px 40px rgba(15, 23, 42, 0.12);
  --glass-blur: blur(16px);
  --glass-border: 1px solid rgba(255, 255, 255, 0.6);

  --gradient-primary: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
  --gradient-success: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
  --gradient-warning: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%);
  --gradient-info: linear-gradient(135deg, #3b82f6 0%, #6366f1 100%);

  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
}

[data-bs-theme="dark"] {
  --body-bg: #0f172a;
  --body-color: #e2e8f0;
  --surface: rgba(30, 41, 59, 0.65);
  --surface-solid: #1e293b;
  --surface-hover: rgba(51, 65, 85, 0.75);
  --border-color: rgba(148, 163, 184, 0.12);
  --border-strong: rgba(148, 163, 184, 0.2);

  --sidebar-bg: rgba(15, 23, 42, 0.92);
  --text-muted: #94a3b8;
  --text-heading: #f1f5f9;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.2);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.4);
  --glass-border: 1px solid rgba(148, 163, 184, 0.1);
}

/* ---- Base ---- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--body-bg);
  color: var(--body-color);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--primary-light);
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text-heading);
  font-weight: 600;
}

.text-muted {
  color: var(--text-muted) !important;
}

/* ---- Bootstrap Overrides ---- */
.btn-primary {
  --bs-btn-bg: var(--primary);
  --bs-btn-border-color: var(--primary);
  --bs-btn-hover-bg: var(--primary-dark);
  --bs-btn-hover-border-color: var(--primary-dark);
  --bs-btn-active-bg: var(--primary-dark);
  --bs-btn-active-border-color: var(--primary-dark);
}

.form-control,
.form-select {
  background: var(--surface);
  border-color: var(--border-color);
  color: var(--body-color);
  border-radius: var(--radius);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus,
.form-select:focus {
  background: var(--surface-solid);
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.15);
  color: var(--body-color);
}

/* ---- Page Loader ---- */
.page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--body-bg);
  transition: opacity 0.4s ease, visibility 0.4s ease;
}

.page-loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-content {
  text-align: center;
}

.loader-spinner {
  width: 48px;
  height: 48px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 12px;
}

.loader-text {
  font-size: 0.875rem;
  color: var(--text-muted);
  font-weight: 500;
}

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

/* ---- Glassmorphism ---- */
.glass-card {
  background: var(--surface);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.glass-card-sm {
  background: var(--surface);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.glass-navbar {
  background: var(--sidebar-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-color);
}

.glass-dropdown {
  background: var(--surface-solid) !important;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: var(--glass-border) !important;
  border-radius: var(--radius) !important;
  box-shadow: var(--shadow-lg) !important;
  padding: 0.5rem;
}

.glass-alert {
  background: var(--surface) !important;
  backdrop-filter: var(--glass-blur);
  border: var(--glass-border) !important;
  border-radius: var(--radius) !important;
}

/* ---- Gradient Cards ---- */
.gradient-card {
  position: relative;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  color: #fff;
  overflow: hidden;
  border: none;
}

.gradient-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  z-index: 0;
}

.gradient-card.primary::before { background: var(--gradient-primary); }
.gradient-card.success::before { background: var(--gradient-success); }
.gradient-card.warning::before { background: var(--gradient-warning); }
.gradient-card.info::before { background: var(--gradient-info); }

.gradient-card > * {
  position: relative;
  z-index: 1;
}

.gradient-card .card-icon {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
}

/* ---- App Layout ---- */
.app-body {
  min-height: 100vh;
}

.app-wrapper {
  display: flex;
  min-height: 100vh;
}

.app-main {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left var(--transition);
  width: calc(100% - var(--sidebar-width));
}

.app-content {
  flex: 1;
}

.app-footer {
  padding: 1rem 0;
  border-top: 1px solid var(--border-color);
  font-size: 0.8125rem;
  color: var(--text-muted);
}

/* ---- Sidebar ---- */
.app-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--sidebar-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  z-index: 1040;
  transition: transform var(--transition);
}

.sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.25rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--text-heading);
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
}

.sidebar-brand:hover {
  color: var(--primary);
}

.brand-icon {
  width: 38px;
  height: 38px;
  background: var(--gradient-primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  flex-shrink: 0;
}

.brand-icon.admin {
  background: linear-gradient(135deg, #ef4444 0%, #f97316 100%);
}

.brand-badge {
  font-size: 0.625rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: rgba(var(--primary-rgb), 0.15);
  color: var(--primary);
  padding: 0.15rem 0.5rem;
  border-radius: 6px;
  margin-left: 0.25rem;
}

.sidebar-user {
  margin: 1rem;
  padding: 0.875rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.sidebar-user-avatar {
  position: relative;
  flex-shrink: 0;
}

.sidebar-user-avatar img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  object-fit: cover;
  background: var(--surface-hover);
  display: block;
}

.sidebar-user-avatar.admin {
  width: 42px;
  height: 42px;
  background: var(--gradient-primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.1rem;
}

.status-dot {
  position: absolute;
  bottom: 0;
  right: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--sidebar-bg);
}

.status-dot.online {
  background: var(--success);
}

.sidebar-user-info h6 {
  font-size: 0.875rem;
  font-weight: 600;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem 0.75rem;
}

.sidebar-nav .nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1rem;
  border-radius: var(--radius);
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.9rem;
  transition: all var(--transition);
  margin-bottom: 2px;
}

.sidebar-nav .nav-link:hover {
  background: var(--surface-hover);
  color: var(--text-heading);
}

.sidebar-nav .nav-link.active {
  background: rgba(var(--primary-rgb), 0.12);
  color: var(--primary);
  font-weight: 600;
}

.sidebar-nav .nav-icon {
  width: 20px;
  text-align: center;
  font-size: 0.95rem;
}

.nav-section {
  margin-bottom: 0.5rem;
}

.nav-section-title {
  display: block;
  padding: 0.75rem 1rem 0.35rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}

.sidebar-footer {
  padding: 0.75rem;
  border-top: 1px solid var(--border-color);
}

.sidebar-footer .nav-link {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.7rem 1rem;
  border-radius: var(--radius);
  font-weight: 500;
  font-size: 0.9rem;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1035;
  backdrop-filter: blur(2px);
}

/* ---- Navbar ---- */
.app-navbar {
  position: sticky;
  top: 0;
  z-index: 1030;
  height: var(--navbar-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
}

.navbar-left,
.navbar-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.page-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 0;
  line-height: 1.3;
}

.page-subtitle {
  font-size: 0.8125rem;
  color: var(--text-muted);
}

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--border-color);
  color: var(--body-color);
  transition: all var(--transition);
}

.btn-icon:hover {
  background: var(--surface-hover);
  border-color: var(--border-strong);
  color: var(--primary);
}

.theme-toggle {
  background: var(--surface);
}

.notification-badge {
  position: absolute;
  top: 4px;
  right: 4px;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  font-size: 0.65rem;
  font-weight: 700;
  line-height: 18px;
  text-align: center;
  background: var(--danger);
  color: #fff;
  border-radius: 9px;
}

.notification-menu {
  width: 340px;
  max-height: 400px;
  overflow: hidden;
}

.notification-list {
  max-height: 280px;
  overflow-y: auto;
}

.notification-item {
  display: flex;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  transition: background var(--transition);
  cursor: pointer;
}

.notification-item:hover {
  background: var(--surface-hover);
}

.notification-item.unread {
  background: rgba(var(--primary-rgb), 0.06);
}

.notification-item .notif-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 0.85rem;
}

.profile-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem 0.35rem 0.35rem;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border-color);
  color: var(--body-color);
  transition: all var(--transition);
}

.profile-btn:hover {
  background: var(--surface-hover);
  border-color: var(--border-strong);
}

.profile-avatar {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  object-fit: cover;
  background: var(--surface-hover);
  flex-shrink: 0;
}

.profile-page-avatar {
  width: 100px;
  height: 100px;
  object-fit: cover;
  background: var(--surface-hover);
  display: inline-block;
}

.profile-name {
  font-weight: 500;
  font-size: 0.875rem;
}

/* ---- Stat Cards ---- */
.stat-card {
  padding: 1.5rem;
}

.stat-card .stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  line-height: 1.2;
}

.stat-card .stat-label {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 500;
}

.stat-card .stat-change {
  font-size: 0.75rem;
  font-weight: 600;
}

.stat-card .stat-change.up { color: var(--success); }
.stat-card .stat-change.down { color: var(--danger); }

/* ---- Tables ---- */
.table-glass {
  background: var(--surface);
  backdrop-filter: var(--glass-blur);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: var(--glass-border);
}

.table-glass .table {
  margin-bottom: 0;
  color: var(--body-color);
}

.table-glass .table thead th {
  background: var(--surface-hover);
  border-bottom: 1px solid var(--border-color);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  padding: 0.875rem 1rem;
}

.table-glass .table tbody td {
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--border-color);
  vertical-align: middle;
}

.table-glass .table tbody tr:last-child td {
  border-bottom: none;
}

.table-glass .table tbody tr:hover {
  background: var(--surface-hover);
}

/* ---- Skeleton Loaders ---- */
.skeleton {
  background: linear-gradient(90deg, var(--border-color) 25%, var(--surface-hover) 50%, var(--border-color) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius);
}

.skeleton-text {
  height: 14px;
  margin-bottom: 8px;
}

.skeleton-text.short { width: 40%; }
.skeleton-text.medium { width: 70%; }
.skeleton-text.long { width: 100%; }

.skeleton-avatar {
  width: 42px;
  height: 42px;
  border-radius: 12px;
}

.skeleton-card {
  height: 120px;
  border-radius: var(--radius-lg);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ---- Animations ---- */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}

.animate-fade-in {
  animation: fadeIn 0.5s ease forwards;
}

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

.animate-slide-in-left {
  animation: slideInLeft 0.5s ease forwards;
}

.stagger-children > * {
  opacity: 0;
  animation: fadeInUp 0.5s ease forwards;
}

.stagger-children > *:nth-child(1) { animation-delay: 0.05s; }
.stagger-children > *:nth-child(2) { animation-delay: 0.1s; }
.stagger-children > *:nth-child(3) { animation-delay: 0.15s; }
.stagger-children > *:nth-child(4) { animation-delay: 0.2s; }
.stagger-children > *:nth-child(5) { animation-delay: 0.25s; }
.stagger-children > *:nth-child(6) { animation-delay: 0.3s; }

/* ---- Toast ---- */
.toast-container .toast {
  background: var(--surface-solid);
  border: var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  color: var(--body-color);
}

.toast-container .toast-header {
  background: transparent;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-heading);
}

/* ---- Guest / Auth Layout ---- */
.guest-body {
  min-height: 100vh;
  position: relative;
}

.guest-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
}

.guest-bg-gradient {
  position: absolute;
  inset: 0;
  background: var(--body-bg);
}

.guest-bg-orbs .orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.4;
}

.orb-1 {
  width: 500px;
  height: 500px;
  background: var(--primary);
  top: -10%;
  right: -5%;
  animation: float 20s ease-in-out infinite;
}

.orb-2 {
  width: 400px;
  height: 400px;
  background: #8b5cf6;
  bottom: -10%;
  left: -5%;
  animation: float 25s ease-in-out infinite reverse;
}

.orb-3 {
  width: 300px;
  height: 300px;
  background: #06b6d4;
  top: 40%;
  left: 30%;
  animation: float 18s ease-in-out infinite;
  opacity: 0.25;
}

.guest-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(var(--primary-rgb), 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(var(--primary-rgb), 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30px, -30px) scale(1.05); }
  66% { transform: translate(-20px, 20px) scale(0.95); }
}

.guest-header {
  position: relative;
  z-index: 10;
}

.guest-navbar {
  padding: 1rem 0;
  background: transparent;
}

.guest-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text-heading) !important;
}

.guest-navbar .nav-link {
  color: var(--text-muted);
  font-weight: 500;
  padding: 0.5rem 1rem;
  transition: color var(--transition);
}

.guest-navbar .nav-link:hover {
  color: var(--primary);
}

.guest-navbar .navbar-toggler {
  border: 1px solid var(--border-color);
  padding: 0.5rem 0.75rem;
  color: var(--body-color);
}

.guest-main {
  position: relative;
  z-index: 5;
  flex: 1;
}

.min-vh-guest {
  min-height: calc(100vh - 160px);
  padding: 2rem 0;
}

.auth-card {
  padding: 2.5rem;
}

.auth-card-header .auth-logo {
  color: var(--text-heading);
}

.guest-hero {
  padding: 4rem 0;
}

.guest-footer {
  position: relative;
  z-index: 10;
  padding: 1.5rem 0;
  border-top: 1px solid var(--border-color);
}

.guest-footer-links a {
  color: var(--text-muted);
  font-size: 0.875rem;
  padding: 0 0.75rem;
  transition: color var(--transition);
}

.guest-footer-links a:hover {
  color: var(--primary);
}

/* ---- Utility ---- */
.card-hover {
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.empty-state {
  text-align: center;
  padding: 3rem 1.5rem;
}

.empty-state i {
  font-size: 3rem;
  color: var(--text-muted);
  opacity: 0.5;
  margin-bottom: 1rem;
}

/* ---- Responsive ---- */
@media (max-width: 991.98px) {
  .app-sidebar {
    transform: translateX(-100%);
  }

  .app-sidebar.show {
    transform: translateX(0);
  }

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

  .app-main {
    margin-left: 0;
    width: 100%;
  }

  .app-navbar {
    padding: 0 1rem;
  }
}

@media (max-width: 575.98px) {
  .auth-card {
    padding: 1.75rem;
  }

  .notification-menu {
    width: 300px;
  }
}

body.sidebar-collapsed .app-sidebar {
  transform: translateX(-100%);
}

body.sidebar-collapsed .app-main {
  margin-left: 0;
  width: 100%;
}

/* ---- DataTables Theme ---- */
.dataTables_wrapper {
  color: var(--body-color);
}

.dataTables_wrapper .dataTables_length select,
.dataTables_wrapper .dataTables_filter input {
  background: var(--surface);
  border: 1px solid var(--border-color);
  color: var(--body-color);
  border-radius: 8px;
  padding: 0.35rem 0.75rem;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current {
  background: var(--primary) !important;
  border-color: var(--primary) !important;
  color: #fff !important;
}

/* ---- SweetAlert2 Theme ---- */
.swal2-popup {
  background: var(--surface-solid) !important;
  color: var(--body-color) !important;
  border: var(--glass-border);
  border-radius: var(--radius-lg) !important;
}

.swal2-title,
.swal2-html-container {
  color: var(--text-heading) !important;
}