/**
 * CoopBank Pro - Modern Banking UI Design System
 * Inspired by premium fintech and modern enterprise banking dashboards.
 */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');
@import url('https://cdn.jsdelivr.net/npm/bootstrap-icons@1.11.3/font/bootstrap-icons.min.css');

:root {
  /* Color Palette - Kulpvriksha Royal Cooperative Bronze/Gold #805E2E */
  --primary: #805E2E;
  --primary-dark: #63461e;
  --primary-deep: #483113;
  --primary-light: #9a733c;
  --primary-lighter: #f7f1e6;
  --primary-border: #d4be9b;

  --primary-900: #1a1207;
  --primary-800: #291c0b;
  --primary-700: #3c2910;
  --primary-600: #553b1b;
  --primary-500: #805E2E;

  --accent-blue: #805E2E;
  --accent-indigo: #6b4a24;
  --accent-cyan: #9a733c;
  --accent-gold: #d4a754;
  --accent-gold-dark: #805E2E;

  --success: #10b981;
  --success-bg: #ecfdf5;
  --success-border: #a7f3d0;

  --danger: #ef4444;
  --danger-bg: #fef2f2;
  --danger-border: #fecaca;

  --warning: #f59e0b;
  --warning-bg: #fffbeb;
  --warning-border: #fde68a;

  --info: #0ea5e9;
  --info-bg: #f0f9ff;
  --info-border: #bae6fd;

  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;

  --surface-white: #ffffff;
  --surface-card: #ffffff;
  --border-color: #e2e8f0;

  /* Typography */
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Elevations */
  --shadow-xs: 0 1px 2px 0 rgba(16, 24, 40, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(16, 24, 40, 0.1), 0 1px 2px -1px rgba(16, 24, 40, 0.1);
  --shadow-md: 0 4px 6px -1px rgba(16, 24, 40, 0.1), 0 2px 4px -2px rgba(16, 24, 40, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(16, 24, 40, 0.1), 0 4px 6px -4px rgba(16, 24, 40, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(16, 24, 40, 0.1), 0 8px 10px -6px rgba(16, 24, 40, 0.1);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-main);
  background-color: #f4f6f9;
  color: var(--slate-800);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

/* Layout Structure */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.app-sidebar {
  width: 275px;
  background: linear-gradient(180deg, var(--primary-900) 0%, var(--primary-800) 100%);
  color: #fff;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 4px 0 24px rgba(0, 0, 0, 0.15);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.sidebar-brand {
  padding: 1.5rem 1.25rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.brand-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, #9a733c 0%, #805E2E 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: #fff;
  box-shadow: 0 4px 12px rgba(128, 94, 46, 0.4);
}

.brand-text h1 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #ffffff;
}

.brand-text span {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--accent-gold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: block;
}

.sidebar-nav {
  padding: 1rem 0.85rem;
  flex: 1;
}

.nav-section-title {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--slate-400);
  padding: 0.85rem 0.75rem 0.4rem;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 0.85rem;
  color: var(--slate-300);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  margin-bottom: 2px;
  transition: all 0.2s ease;
  position: relative;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.07);
  color: #ffffff;
  transform: translateX(3px);
}

.nav-item.active {
  background: linear-gradient(90deg, rgba(128, 94, 46, 0.9) 0%, rgba(154, 115, 60, 0.75) 100%);
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(128, 94, 46, 0.3);
}

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

.nav-item .nav-badge {
  margin-left: auto;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.55rem;
  border-radius: 9999px;
  background: rgba(239, 68, 68, 0.9);
  color: white;
}

.sidebar-footer {
  padding: 1rem 1.25rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.15);
}

.user-profile-badge {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-gold) 0%, #d97706 100%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
}

.user-meta {
  flex: 1;
  min-width: 0;
}

.user-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: #ffffff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  font-size: 0.7rem;
  color: var(--slate-400);
  text-transform: capitalize;
}

/* Main Content Area */
.app-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: #f4f6f9;
}

/* Top Navbar */
.top-navbar {
  background: var(--surface-white);
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 90;
  box-shadow: var(--shadow-xs);
}

.navbar-left {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.navbar-branch-badge {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--slate-100);
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--slate-700);
  border: 1px solid var(--slate-200);
}

.navbar-branch-badge i {
  color: var(--accent-blue);
}

.navbar-right {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.current-time {
  font-size: 0.8rem;
  color: var(--slate-500);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* Page Content Body */
.page-content {
  padding: 2rem;
  flex: 1;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.75rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.page-title {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--slate-900);
  letter-spacing: -0.02em;
}

.page-subtitle {
  font-size: 0.85rem;
  color: var(--slate-500);
  margin-top: 0.2rem;
}

.page-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Cards & Containers */
.card {
  background: var(--surface-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  margin-bottom: 1.75rem;
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #ffffff;
}

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--slate-900);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.card-body {
  padding: 1.5rem;
}

.card-footer {
  padding: 1rem 1.5rem;
  background: var(--slate-50);
  border-top: 1px solid var(--border-color);
}

/* Stat KPI Cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 1.75rem;
}

.stat-card {
  background: #ffffff;
  border-radius: var(--radius-md);
  padding: 1.35rem;
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  display: flex;
  align-items: flex-start;
  gap: 1.1rem;
  position: relative;
  overflow: hidden;
  transition: all 0.2s ease;
}

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

.stat-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
}

.stat-card.blue::after { background: var(--accent-blue); }
.stat-card.emerald::after { background: var(--success); }
.stat-card.gold::after { background: var(--accent-gold); }
.stat-card.purple::after { background: #8b5cf6; }
.stat-card.rose::after { background: #f43f5e; }

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}

.stat-card.blue .stat-icon { background: #eff6ff; color: var(--accent-blue); }
.stat-card.emerald .stat-icon { background: #ecfdf5; color: var(--success); }
.stat-card.gold .stat-icon { background: #fffbeb; color: var(--accent-gold-dark); }
.stat-card.purple .stat-icon { background: #f5f3ff; color: #8b5cf6; }
.stat-card.rose .stat-icon { background: #fff1f2; color: #f43f5e; }

.stat-content {
  flex: 1;
}

.stat-label {
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--slate-500);
}

.stat-value {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--slate-900);
  margin: 0.25rem 0 0.15rem;
  font-family: var(--font-main);
  letter-spacing: -0.02em;
}

.stat-meta {
  font-size: 0.75rem;
  color: var(--slate-400);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.55rem 1.15rem;
  font-size: 0.88rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  line-height: 1.4;
}

.btn-primary {
  background: linear-gradient(135deg, #805E2E 0%, #63461e 100%);
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(128, 94, 46, 0.3);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #63461e 0%, #4a3416 100%);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(128, 94, 46, 0.4);
  transform: translateY(-1px);
}

.btn-success {
  background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
  color: #ffffff;
  box-shadow: 0 2px 6px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
  background: linear-gradient(135deg, #059669 0%, #047857 100%);
  color: #ffffff;
  transform: translateY(-1px);
}

.btn-danger {
  background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
  color: #ffffff;
}

.btn-danger:hover {
  background: linear-gradient(135deg, #dc2626 0%, #b91c1c 100%);
  transform: translateY(-1px);
}

.btn-secondary {
  background: #ffffff;
  border-color: var(--border-color);
  color: var(--slate-700);
}

.btn-secondary:hover {
  background: var(--slate-100);
  color: var(--slate-900);
}

.btn-outline-primary {
  background: transparent;
  border-color: var(--accent-blue);
  color: var(--accent-blue);
}

.btn-outline-primary:hover {
  background: var(--accent-blue);
  color: #ffffff;
}

.btn-sm {
  padding: 0.35rem 0.75rem;
  font-size: 0.78rem;
  border-radius: 6px;
}

/* Forms & Inputs */
.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.25rem;
}

.form-group {
  margin-bottom: 1.15rem;
}

.form-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--slate-700);
  margin-bottom: 0.4rem;
}

.form-label .required {
  color: var(--danger);
}

.form-control, .form-select {
  width: 100%;
  padding: 0.6rem 0.85rem;
  font-size: 0.88rem;
  font-family: var(--font-main);
  color: var(--slate-900);
  background-color: #ffffff;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
}

.form-control:focus, .form-select:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-text {
  font-size: 0.75rem;
  color: var(--slate-400);
  margin-top: 0.3rem;
}

/* Data Tables */
.table-responsive {
  width: 100%;
  overflow-x: auto;
}

.table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.85rem;
}

.table th {
  background: var(--slate-50);
  color: var(--slate-600);
  font-weight: 700;
  text-transform: uppercase;
  font-size: 0.72rem;
  letter-spacing: 0.05em;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
  text-align: left;
}

.table td {
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: var(--slate-700);
  vertical-align: middle;
}

.table tbody tr:hover {
  background-color: rgba(241, 245, 249, 0.7);
}

.table td.amount {
  font-family: var(--font-mono);
  font-weight: 600;
  text-align: right;
}

.table th.text-right, .table td.text-right {
  text-align: right;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.65rem;
  border-radius: 9999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.2;
}

.badge-success { background: var(--success-bg); color: #047857; border: 1px solid var(--success-border); }
.badge-danger { background: var(--danger-bg); color: #b91c1c; border: 1px solid var(--danger-border); }
.badge-warning { background: var(--warning-bg); color: #b45309; border: 1px solid var(--warning-border); }
.badge-info { background: var(--info-bg); color: #0369a1; border: 1px solid var(--info-border); }
.badge-secondary { background: var(--slate-100); color: var(--slate-600); border: 1px solid var(--slate-200); }

/* Flash Alerts */
.alert {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.88rem;
  font-weight: 500;
  border: 1px solid transparent;
  animation: slideDown 0.3s ease;
}

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

.alert-success { background: var(--success-bg); color: #065f46; border-color: var(--success-border); }
.alert-danger { background: var(--danger-bg); color: #991b1b; border-color: var(--danger-border); }
.alert-warning { background: var(--warning-bg); color: #92400e; border-color: var(--warning-border); }
.alert-info { background: var(--info-bg); color: #075985; border-color: var(--info-border); }

/* Modals */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 1rem;
}

.modal-overlay.active {
  display: flex;
}

.modal-dialog {
  background: #ffffff;
  border-radius: var(--radius-lg);
  max-width: 600px;
  width: 100%;
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  animation: modalScale 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes modalScale {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--slate-900);
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 1.25rem;
  color: var(--slate-400);
  cursor: pointer;
}

.modal-body {
  padding: 1.5rem;
  max-height: 75vh;
  overflow-y: auto;
}

.modal-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border-color);
  background: var(--slate-50);
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

/* Category Tab Navigation */
.category-tabs {
  display: flex;
  gap: 0.5rem;
  border-bottom: 2px solid var(--border-color);
  margin-bottom: 1.5rem;
  overflow-x: auto;
}

.category-tab {
  padding: 0.75rem 1.25rem;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--slate-500);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.category-tab:hover {
  color: var(--accent-blue);
}

.category-tab.active {
  color: var(--accent-blue);
  border-bottom-color: var(--accent-blue);
}

.category-tab .badge {
  font-size: 0.68rem;
}

/* Calculation summary card */
.calc-preview-card {
  background: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
  color: #ffffff;
  border-radius: var(--radius-md);
  padding: 1.5rem;
  margin-top: 1rem;
}

.calc-preview-card .grid-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 1rem;
}

.calc-item .label {
  font-size: 0.72rem;
  color: var(--slate-400);
  text-transform: uppercase;
  font-weight: 600;
}

.calc-item .val {
  font-size: 1.25rem;
  font-weight: 700;
  color: #ffffff;
  font-family: var(--font-mono);
  margin-top: 0.2rem;
}

.calc-item .val.highlight {
  color: var(--accent-gold);
}

/* Responsive adjustments */
@media (max-width: 992px) {
  .app-sidebar {
    position: fixed;
    transform: translateX(-100%);
  }
  .app-sidebar.open {
    transform: translateX(0);
  }
}