/* ====================================
   Bnc10 Banco - Blanco + Azul Cielo
   ==================================== */

:root {
  --primary: #4FC3F7;
  --primary-dark: #0288D1;
  --primary-light: #E1F5FE;
  --primary-bg: #F0F8FF;
  --white: #FFFFFF;
  --gray-50: #F8FAFC;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-300: #CBD5E1;
  --gray-400: #94A3B8;
  --gray-500: #64748B;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1E293B;
  --gray-900: #0F172A;
  --success: #10B981;
  --warning: #F59E0B;
  --danger: #EF4444;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
  --radius: 12px;
  --radius-sm: 8px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode */
[data-theme="dark"] {
  --primary-bg: #0F172A;
  --white: #1E293B;
  --gray-50: #1E293B;
  --gray-100: #334155;
  --gray-200: #475569;
  --gray-300: #64748B;
  --gray-400: #94A3B8;
  --gray-500: #CBD5E1;
  --gray-600: #E2E8F0;
  --gray-700: #F1F5F9;
  --gray-800: #F8FAFC;
  --gray-900: #FFFFFF;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
  --shadow: 0 4px 20px rgba(0,0,0,0.4);
  --shadow-lg: 0 10px 40px rgba(0,0,0,0.5);
}
[data-theme="dark"] .auth-page { background: linear-gradient(135deg, #0F172A, #1E293B); }
[data-theme="dark"] .account-card { background: linear-gradient(135deg, #01579B, #002F4F); }
[data-theme="dark"] .sidebar { border-right-color: var(--gray-200); }
[data-theme="dark"] input, [data-theme="dark"] select, [data-theme="dark"] textarea { background: var(--gray-50); color: var(--gray-800); }
[data-theme="dark"] .table-card tr:hover td { background: var(--gray-100); }
[data-theme="dark"] .stat-card, [data-theme="dark"] .table-card, [data-theme="dark"] .transfer-form { border-color: var(--gray-200); }

* { margin: 0; padding: 0; box-sizing: border-box; }
body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--primary-bg);
  color: var(--gray-800);
  line-height: 1.6;
}

/* ============= AUTH PAGES ============= */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary-bg) 50%, var(--white) 100%);
  padding: 20px;
}
.auth-card {
  background: var(--white);
  border-radius: 20px;
  box-shadow: var(--shadow-lg);
  padding: 48px 40px;
  width: 100%;
  max-width: 440px;
  position: relative;
  overflow: hidden;
}
.auth-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--primary), var(--primary-dark));
}
.auth-logo {
  text-align: center;
  margin-bottom: 32px;
}
.auth-logo h1 {
  font-size: 28px;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: -0.5px;
}
.auth-logo h1 span { color: var(--primary); }
.auth-logo p { color: var(--gray-500); margin-top: 6px; font-size: 14px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 6px;
}
.form-group input, .form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 14px;
  transition: var(--transition);
  background: var(--gray-50);
}
.form-group input:focus, .form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(79, 195, 247, 0.15);
  background: var(--white);
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  width: 100%;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 15px rgba(79, 195, 247, 0.4); }
.btn-outline {
  background: transparent;
  color: var(--primary-dark);
  border: 2px solid var(--primary);
}
.btn-outline:hover { background: var(--primary-light); }
.btn-danger { background: var(--danger); color: white; }
.btn-danger:hover { background: #DC2626; }
.btn-sm { padding: 8px 16px; font-size: 13px; }
.auth-footer { text-align: center; margin-top: 24px; font-size: 14px; color: var(--gray-500); }
.auth-footer a { color: var(--primary-dark); text-decoration: none; font-weight: 600; }
.auth-footer a:hover { text-decoration: underline; }
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-size: 14px;
}
.alert-error { background: #FEF2F2; color: var(--danger); border: 1px solid #FECACA; }
.alert-success { background: #F0FDF4; color: var(--success); border: 1px solid #BBF7D0; }

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

/* Sidebar */
.sidebar {
  width: 260px;
  background: var(--white);
  border-right: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 1000;
  transition: var(--transition);
}
.sidebar-logo {
  padding: 24px 20px;
  border-bottom: 1px solid var(--gray-100);
}
.sidebar-logo h2 { font-size: 22px; font-weight: 800; color: var(--primary-dark); }
.sidebar-logo h2 span { color: var(--primary); }
.sidebar-logo small { font-size: 11px; color: var(--gray-400); display: block; margin-top: 2px; }
.sidebar-nav { flex: 1; padding: 16px 12px; overflow-y: auto; }
.nav-label { font-size: 11px; font-weight: 600; color: var(--gray-400); text-transform: uppercase; letter-spacing: 1px; padding: 8px 12px; margin-top: 12px; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--gray-600);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  margin-bottom: 2px;
}
.nav-item:hover { background: var(--primary-light); color: var(--primary-dark); }
.nav-item.active {
  background: var(--primary-light);
  color: var(--primary-dark);
  font-weight: 600;
  border-right: 3px solid var(--primary-dark);
}
.nav-item .icon { font-size: 18px; width: 24px; text-align: center; }
.nav-item .badge {
  margin-left: auto;
  background: var(--primary);
  color: white;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 600;
}
.sidebar-footer {
  padding: 16px 12px;
  border-top: 1px solid var(--gray-100);
}
.user-mini {
  display: flex;
  align-items: center;
  gap: 12px;
}
.user-mini .avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
}
.user-mini .info { flex: 1; }
.user-mini .info strong { display: block; font-size: 13px; }
.user-mini .info small { font-size: 11px; color: var(--gray-400); }

/* Main */
.main {
  flex: 1;
  margin-left: 260px;
  min-height: 100vh;
}
.topbar {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  padding: 16px 32px;
  display: flex;
  align-items: center;
  gap: 20px;
  position: sticky;
  top: 0;
  z-index: 100;
}
.topbar-left { display: flex; align-items: center; gap: 16px; }
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--gray-600);
  padding: 4px;
}
.topbar-search {
  flex: 1;
  max-width: 400px;
  position: relative;
}
.topbar-search input {
  width: 100%;
  padding: 10px 16px 10px 40px;
  border: 2px solid var(--gray-200);
  border-radius: 30px;
  font-size: 13px;
  background: var(--gray-50);
  transition: var(--transition);
}
.topbar-search input:focus {
  outline: none;
  border-color: var(--primary);
  background: var(--white);
}
.topbar-search .icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-400);
}
.topbar-right { display: flex; align-items: center; gap: 16px; margin-left: auto; }
.topbar-btn {
  position: relative;
  width: 40px; height: 40px;
  border: none;
  background: var(--gray-50);
  border-radius: 50%;
  cursor: pointer;
  font-size: 18px;
  color: var(--gray-600);
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}
.topbar-btn:hover { background: var(--primary-light); color: var(--primary-dark); }
.topbar-btn .dot {
  position: absolute;
  top: 8px; right: 8px;
  width: 8px; height: 8px;
  background: var(--danger);
  border-radius: 50%;
  border: 2px solid var(--white);
}
.content {
  padding: 32px;
}

/* ============= DASHBOARD ============= */
.page-header { margin-bottom: 28px; }
.page-header h1 { font-size: 24px; font-weight: 700; color: var(--gray-900); }
.page-header p { color: var(--gray-500); margin-top: 4px; }

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}
.stat-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: 1px solid var(--gray-100);
}
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.stat-card .stat-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.stat-card .stat-header .stat-icon {
  width: 44px; height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}
.stat-card .stat-header .stat-label { font-size: 13px; color: var(--gray-500); font-weight: 500; }
.stat-card .stat-value { font-size: 26px; font-weight: 700; color: var(--gray-900); }
.stat-card .stat-change { font-size: 12px; margin-top: 4px; }
.stat-card .stat-change.up { color: var(--success); }
.stat-card .stat-change.down { color: var(--danger); }

/* Account card */
.account-card {
  background: linear-gradient(135deg, var(--primary-dark), #01579B);
  border-radius: var(--radius);
  padding: 32px;
  color: var(--white);
  margin-bottom: 32px;
  box-shadow: 0 8px 30px rgba(2, 136, 209, 0.3);
}
.account-card .acct-label { font-size: 13px; opacity: 0.8; }
.account-card .acct-balance { font-size: 42px; font-weight: 800; margin: 8px 0 4px; letter-spacing: -1px; }
.account-card .acct-iban { font-size: 13px; opacity: 0.7; font-family: monospace; }
.account-card .acct-actions { display: flex; gap: 12px; margin-top: 20px; }
.account-card .acct-actions .btn { background: rgba(255,255,255,0.2); color: white; border: 1px solid rgba(255,255,255,0.3); }
.account-card .acct-actions .btn:hover { background: rgba(255,255,255,0.3); }

/* Grids */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }

/* Tables */
.table-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-100);
  overflow: hidden;
}
.table-card .table-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.table-card .table-header h3 { font-size: 16px; font-weight: 600; }
.table-card table { width: 100%; border-collapse: collapse; }
.table-card th {
  text-align: left;
  padding: 12px 24px;
  font-size: 12px;
  font-weight: 600;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
}
.table-card td {
  padding: 14px 24px;
  font-size: 14px;
  border-bottom: 1px solid var(--gray-100);
}
.table-card tr:last-child td { border-bottom: none; }
.table-card tr:hover td { background: var(--gray-50); }
.status {
  display: inline-flex;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 600;
}
.status.completado { background: #F0FDF4; color: var(--success); }
.status.pendiente { background: #FFFBEB; color: var(--warning); }
.status.fallido { background: #FEF2F2; color: var(--danger); }
.text-amount { font-weight: 600; }
.text-amount.positive { color: var(--success); }
.text-amount.negative { color: var(--danger); }
.text-muted { color: var(--gray-400); font-size: 12px; }

/* Activity list */
.activity-list { list-style: none; }
.activity-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 24px;
  border-bottom: 1px solid var(--gray-100);
}
.activity-list li:last-child { border-bottom: none; }
.activity-icon {
  width: 36px; height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  flex-shrink: 0;
}
.activity-icon.in { background: #F0FDF4; color: var(--success); }
.activity-icon.out { background: #FEF2F2; color: var(--danger); }
.activity-content { flex: 1; }
.activity-content strong { display: block; font-size: 14px; }
.activity-content small { font-size: 12px; color: var(--gray-500); }

/* ============= ADMIN ============= */
.admin-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-bottom: 32px; }
.admin-stat {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--gray-100);
}
.admin-stat .num { font-size: 32px; font-weight: 800; color: var(--primary-dark); }
.admin-stat .label { font-size: 13px; color: var(--gray-500); }

/* ============= RESPONSIVE ============= */
@media (max-width: 1200px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
  .admin-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
    box-shadow: 0 0 0 1000px rgba(0,0,0,0.5);
  }
  .menu-toggle { display: block; }
  .main { margin-left: 0; }
  .topbar { padding: 12px 16px; }
  .topbar-search { display: none; }
  .content { padding: 16px; }
  .stats-grid { grid-template-columns: 1fr; gap: 14px; }
  .account-card { padding: 20px; }
  .account-card .acct-balance { font-size: 28px; }
  .account-card .acct-actions { flex-wrap: wrap; }
  .account-card .acct-actions .btn { flex: 1; text-align: center; }
  .admin-grid { grid-template-columns: 1fr; }
  .table-card { overflow-x: auto; }
  .table-card table { min-width: 600px; }
  .auth-card { padding: 32px 24px; }
}

/* ============= TRANSFER FORM ============= */
.transfer-form {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px;
  border: 1px solid var(--gray-100);
  box-shadow: var(--shadow-sm);
  max-width: 600px;
}
.transfer-form .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }

/* ============= TOGGLE SIDEBAR OVERLAY ============= */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 999;
}
@media (max-width: 768px) {
  .sidebar-overlay.show { display: block; }
}

/* ============= ANIMATIONS ============= */
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideIn { from { opacity: 0; transform: translateX(-20px); } to { opacity: 1; transform: translateX(0); } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
@keyframes scaleIn { from { opacity: 0; transform: scale(0.95); } to { opacity: 1; transform: scale(1); } }

.stat-card, .account-card { animation: fadeIn 0.4s ease-out; }
.stat-card:nth-child(2) { animation-delay: 0.05s; }
.stat-card:nth-child(3) { animation-delay: 0.1s; }
.stat-card:nth-child(4) { animation-delay: 0.15s; }
.table-card { animation: slideUp 0.4s ease-out; }
.sidebar { animation: slideIn 0.3s ease-out; }
@media (prefers-reduced-motion: reduce) { .stat-card, .account-card, .table-card, .sidebar { animation: none; } }

/* ============= TOOLTIPS ============= */
[data-tooltip] { position: relative; cursor: help; }
[data-tooltip]:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%; left: 50%;
  transform: translateX(-50%);
  background: var(--gray-900);
  color: var(--gray-50);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 12px;
  white-space: nowrap;
  z-index: 1000;
  pointer-events: none;
  animation: fadeIn 0.2s ease-out;
}

/* ============= BADGE ============= */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 700;
  background: var(--primary);
  color: white;
}