/**
 * AMU Multi Services - Professional Enterprise UI
 * E-Payment & Voucher Management System
 */

/* ===== Variables ===== */
:root {
  --amu-primary: #1e3a5f;
  --amu-primary-dark: #152a45;
  --amu-accent: #2563eb;
  --amu-accent-hover: #1d4ed8;
  --amu-success: #059669;
  --amu-warning: #d97706;
  --amu-danger: #dc2626;
  --amu-bg: #f8fafc;
  --amu-card-bg: #ffffff;
  --amu-border: #e2e8f0;
  --amu-text: #0f172a;
  --amu-text-muted: #64748b;
  --amu-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
  --amu-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.06);
  --amu-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.06);
  --amu-radius: 6px;
  --amu-radius-lg: 10px;
}

/* ===== Base ===== */
* {
  box-sizing: border-box;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  background-color: var(--amu-bg);
  color: var(--amu-text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-size: 0.9375rem;
}

main {
  flex: 1;
  padding: 1.5rem 0 2rem;
}

main.container-fluid {
  max-width: 1320px;
  margin-left: auto;
  margin-right: auto;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  color: var(--amu-primary);
  letter-spacing: -0.02em;
}

.page-title {
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--amu-primary);
  margin-bottom: 0;
  letter-spacing: -0.02em;
}

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

/* ===== Navbar ===== */
.navbar-amu {
  background: var(--amu-primary) !important;
  box-shadow: var(--amu-shadow-md);
  padding: 0.5rem 0;
}

.navbar-amu .navbar-brand {
  font-weight: 600;
  font-size: 1.1rem;
  color: #fff !important;
  letter-spacing: -0.02em;
}

.navbar-amu .navbar-brand:hover {
  color: rgba(255, 255, 255, 0.95) !important;
}

.navbar-amu .nav-link {
  color: rgba(255, 255, 255, 0.9) !important;
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.5rem 0.75rem !important;
  border-radius: var(--amu-radius);
  transition: color 0.15s ease, background 0.15s ease;
}

.navbar-amu .nav-link:hover {
  color: #fff !important;
  background: rgba(255, 255, 255, 0.1);
}

.navbar-amu .nav-link.active {
  color: #fff !important;
  background: var(--amu-accent);
}

.navbar-amu .dropdown-menu {
  border: 1px solid var(--amu-border);
  box-shadow: var(--amu-shadow-lg);
  border-radius: var(--amu-radius);
  padding: 0.375rem;
  margin-top: 0.375rem;
}

.navbar-amu .dropdown-item {
  border-radius: 4px;
  padding: 0.5rem 0.75rem;
  font-size: 0.9rem;
}

.navbar-amu .dropdown-item:hover {
  background: #f1f5f9;
}

.navbar-amu .dropdown-item.text-danger:hover {
  background: #fee2e2;
}

.navbar-amu .dropdown-divider {
  margin: 0.375rem 0;
  border-color: var(--amu-border);
}

/* ===== Page Header ===== */
.page-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.page-header .user-badge {
  font-size: 0.8125rem;
  color: var(--amu-text-muted);
  padding: 0.375rem 0.75rem;
  background: var(--amu-card-bg);
  border-radius: var(--amu-radius);
  border: 1px solid var(--amu-border);
}

/* ===== Cards ===== */
.card-amu {
  background: var(--amu-card-bg);
  border: 1px solid var(--amu-border);
  border-radius: var(--amu-radius-lg);
  box-shadow: var(--amu-shadow);
  overflow: hidden;
}

.card-amu .card-header {
  background: #fafbfc;
  border-bottom: 1px solid var(--amu-border);
  font-weight: 600;
  color: var(--amu-primary);
  padding: 0.875rem 1.25rem;
  font-size: 0.9375rem;
}

.card-amu .card-body {
  padding: 1.25rem;
}

/* ===== Tables ===== */
.table-amu {
  margin-bottom: 0;
}

.table-amu thead th {
  background: #f8fafc;
  font-weight: 600;
  color: var(--amu-text-muted);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--amu-border);
}

.table-amu tbody td {
  padding: 0.875rem 1rem;
  vertical-align: middle;
  font-size: 0.9rem;
}

.table-amu tbody tr {
  transition: background 0.15s ease;
}

.table-amu tbody tr:hover {
  background: #f8fafc;
}

.table-amu tbody tr:not(:last-child) td {
  border-bottom: 1px solid #f1f5f9;
}

.table-amu .table-bordered td,
.table-amu .table-bordered th {
  border-color: var(--amu-border);
}

.table-amu thead.table-light th {
  background: #f8fafc;
  color: var(--amu-text-muted);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ===== Badges ===== */
.badge-amu {
  font-weight: 500;
  padding: 0.35em 0.6em;
  font-size: 0.7rem;
  border-radius: 4px;
}

.badge-amu-success { background: #d1fae5; color: #065f46; }
.badge-amu-warning { background: #fef3c7; color: #92400e; }
.badge-amu-danger { background: #fee2e2; color: #991b1b; }
.badge-amu-info { background: #e0f2fe; color: #0369a1; }
.badge-amu-secondary { background: #f1f5f9; color: #475569; }

/* ===== Buttons ===== */
.btn {
  font-weight: 500;
  border-radius: var(--amu-radius);
  transition: all 0.15s ease;
}

.btn-primary {
  background: var(--amu-accent) !important;
  border-color: var(--amu-accent) !important;
}

.btn-primary:hover {
  background: var(--amu-accent-hover) !important;
  border-color: var(--amu-accent-hover) !important;
}

.btn-success {
  background: var(--amu-success) !important;
  border-color: var(--amu-success) !important;
}

.btn-outline-amu {
  border-color: var(--amu-accent);
  color: var(--amu-accent);
  font-weight: 500;
}

.btn-outline-amu:hover {
  background: rgba(37, 99, 235, 0.08);
  color: var(--amu-accent-hover);
  border-color: var(--amu-accent-hover);
}

.btn-sm {
  padding: 0.35rem 0.65rem;
  font-size: 0.8125rem;
  font-weight: 500;
}

.btn-outline-primary,
.btn-outline-success,
.btn-outline-danger,
.btn-outline-secondary {
  transition: all 0.15s ease;
}

.btn-outline-primary:hover {
  background: rgba(37, 99, 235, 0.08);
}

.btn-outline-success:hover {
  background: rgba(5, 150, 105, 0.08);
}

.btn-outline-danger:hover {
  background: rgba(220, 38, 38, 0.08);
}

/* ===== Tabs ===== */
.nav-tabs-amu,
.nav-tabs-voucher {
  border-bottom: 1px solid var(--amu-border);
  gap: 0;
}

.nav-tabs-amu .nav-link,
.nav-tabs-voucher .nav-link {
  border: none;
  color: var(--amu-text-muted);
  font-weight: 500;
  padding: 0.65rem 1rem;
  border-radius: 0;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all 0.15s ease;
}

.nav-tabs-amu .nav-link:hover,
.nav-tabs-voucher .nav-link:hover {
  color: var(--amu-primary);
}

.nav-tabs-amu .nav-link.active,
.nav-tabs-voucher .nav-link.active {
  color: var(--amu-accent);
  border-bottom-color: var(--amu-accent);
  font-weight: 600;
}

.nav-tabs-voucher .nav-item:first-child .nav-link.active {
  color: var(--amu-warning);
  border-bottom-color: var(--amu-warning);
}

/* ===== Alerts ===== */
.alert {
  border-radius: var(--amu-radius);
  border: 1px solid transparent;
}

.alert-success { background: #ecfdf5; color: #065f46; border-color: #a7f3d0; }
.alert-danger { background: #fef2f2; color: #991b1b; border-color: #fecaca; }
.alert-warning { background: #fffbeb; color: #92400e; border-color: #fde68a; }
.alert-info { background: #eff6ff; color: #1e40af; border-color: #bfdbfe; }

/* ===== Forms ===== */
.form-control,
.form-select {
  border-radius: var(--amu-radius);
  border-color: var(--amu-border);
  padding: 0.5rem 0.75rem;
  font-size: 0.9375rem;
}

.form-control:focus,
.form-select:focus {
  border-color: var(--amu-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-label {
  font-weight: 500;
  color: var(--amu-text);
  margin-bottom: 0.35rem;
  font-size: 0.9rem;
}

.form-control.is-invalid,
.form-select.is-invalid {
  border-color: var(--amu-danger);
}

.form-control.is-invalid:focus {
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15);
}

.invalid-feedback {
  font-size: 0.8125rem;
  color: var(--amu-danger);
  margin-top: 0.25rem;
}

/* Small form controls inside tables */
.table-amu .form-control-sm,
.table-amu .form-select-sm {
  padding: 0.35rem 0.5rem;
  font-size: 0.8125rem;
}

/* ===== Stats Cards ===== */
.stat-card {
  background: var(--amu-card-bg);
  border: 1px solid var(--amu-border);
  border-radius: var(--amu-radius-lg);
  padding: 1.25rem;
  box-shadow: var(--amu-shadow);
  transition: all 0.2s ease;
}

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

.stat-card .stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--amu-primary);
  line-height: 1.2;
}

.stat-card .stat-label {
  font-size: 0.8125rem;
  color: var(--amu-text-muted);
  font-weight: 500;
  margin-top: 0.25rem;
}

.stat-card-pending {
  border-left: 4px solid var(--amu-warning);
}

.stat-card-pending .stat-value {
  color: var(--amu-warning);
}

.stat-card-approved {
  border-left: 4px solid var(--amu-success);
}

.stat-card-approved .stat-value {
  color: var(--amu-success);
}

.stat-card-rejected {
  border-left: 4px solid var(--amu-danger);
}

.stat-card-rejected .stat-value {
  color: var(--amu-danger);
}

a.stat-card {
  color: inherit;
  text-decoration: none;
}

a.stat-card:hover {
  color: inherit;
}

.stat-card-active {
  border-color: var(--amu-accent);
  background: #f8fafc;
  box-shadow: 0 0 0 1px rgba(37, 99, 235, 0.2);
}

.stat-card-active .stat-value {
  color: var(--amu-accent);
}

.stat-card-approved.stat-card-active {
  border-color: var(--amu-success);
  box-shadow: 0 0 0 1px rgba(5, 150, 105, 0.2);
}

.stat-card-approved.stat-card-active .stat-value {
  color: var(--amu-success);
}

.stat-card-rejected.stat-card-active {
  border-color: var(--amu-danger);
  box-shadow: 0 0 0 1px rgba(220, 38, 38, 0.2);
}

.stat-card-rejected.stat-card-active .stat-value {
  color: var(--amu-danger);
}

.stat-card-pending.stat-card-active {
  border-color: var(--amu-warning);
  box-shadow: 0 0 0 1px rgba(217, 119, 6, 0.2);
}

.stat-card-pending.stat-card-active .stat-value {
  color: var(--amu-warning);
}

/* ===== Footer ===== */
.footer-amu {
  background: var(--amu-card-bg);
  border-top: 1px solid var(--amu-border);
  padding: 1rem 0;
  margin-top: auto;
  font-size: 0.8125rem;
  color: var(--amu-text-muted);
}

/* ===== Login Page ===== */
.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 50%, #f1f5f9 100%);
  padding: 2rem 1rem;
  position: relative;
  overflow: hidden;
}

.login-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
}

.login-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--amu-primary), var(--amu-accent));
}

.login-wrapper::after {
  content: '';
  position: absolute;
  bottom: -20%;
  right: -10%;
  width: 40%;
  height: 60%;
  background: radial-gradient(ellipse, rgba(37, 99, 235, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.login-card {
  background: var(--amu-card-bg);
  border-radius: var(--amu-radius-lg);
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.1), 0 0 0 1px rgba(0, 0, 0, 0.03);
  border: 1px solid var(--amu-border);
  overflow: hidden;
  width: 100%;
  position: relative;
  z-index: 1;
}

.login-card .login-header {
  padding: 2.25rem 1.5rem;
  text-align: center;
  border-bottom: 1px solid var(--amu-border);
  background: linear-gradient(180deg, #fafbfc 0%, var(--amu-card-bg) 100%);
}

.login-card .login-header .brand-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem;
  background: linear-gradient(135deg, var(--amu-primary), var(--amu-accent));
  border-radius: var(--amu-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: #fff;
  font-weight: 700;
  letter-spacing: -0.05em;
}

.login-card .login-header h1 {
  font-size: 1.375rem;
  font-weight: 600;
  color: var(--amu-primary);
  margin: 0 0 0.25rem 0;
  letter-spacing: -0.02em;
}

.login-card .login-header .subtitle {
  font-size: 0.8125rem;
  color: var(--amu-text-muted);
}

.login-card .card-body {
  padding: 1.75rem 1.5rem;
}

.login-card .form-label {
  font-size: 0.875rem;
  font-weight: 500;
}

.login-card .form-control {
  padding: 0.625rem 0.875rem;
  font-size: 0.9375rem;
  border-radius: var(--amu-radius);
}

.login-card .form-control:focus {
  border-color: var(--amu-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.login-card .btn-login {
  background: var(--amu-accent);
  border: none;
  color: #fff;
  font-weight: 600;
  padding: 0.7rem;
  border-radius: var(--amu-radius);
  font-size: 0.9375rem;
  transition: background 0.2s ease, transform 0.05s ease;
}

.login-card .btn-login:hover {
  background: var(--amu-accent-hover);
  color: #fff;
}

.login-card .btn-login:active {
  transform: scale(0.99);
}

.login-footer {
  text-align: center;
  font-size: 0.75rem;
  color: var(--amu-text-muted);
  margin-top: 1.5rem;
  width: 100%;
}

.login-container .login-card {
  width: 100%;
}

/* ===== Remarks / Info boxes ===== */
.bg-light.rounded {
  background: #f8fafc !important;
  border: 1px solid var(--amu-border);
}

/* ===== Empty States ===== */
.empty-state {
  padding: 2rem;
  text-align: center;
  color: var(--amu-text-muted);
  font-size: 0.9rem;
}

td.empty-state {
  padding: 2rem 1rem !important;
}

/* ===== List Groups ===== */
.list-group-item {
  border-color: var(--amu-border);
}

/* ===== Modals ===== */
.modal-content {
  border-radius: var(--amu-radius-lg);
  border: 1px solid var(--amu-border);
  box-shadow: var(--amu-shadow-lg);
}

.modal-header {
  border-bottom-color: var(--amu-border);
  padding: 1rem 1.25rem;
  background: #fafbfc;
}

.modal-body {
  padding: 1.25rem;
}

.modal-footer {
  border-top-color: var(--amu-border);
  padding: 1rem 1.25rem;
}

/* ===== Breadcrumbs & Back buttons ===== */
.page-header .btn-outline-secondary {
  font-weight: 500;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .page-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .stat-card .stat-value {
    font-size: 1.5rem;
  }

  .login-card {
    margin: 0;
  }

  .login-container {
    padding: 0 0.5rem;
  }

  .navbar-amu .navbar-nav {
    padding-top: 0.5rem;
  }
}