/* Modern theme layer for legacy Bootstrap 3 UI */
:root {
  --color-bg: #f4f6f9;
  --color-surface: #ffffff;
  --color-surface-muted: #f8fafc;
  --color-border: #e3e8ef;
  --color-text: #1f2a37;
  --color-text-muted: #5f6b7a;
  --color-primary: #1f7a8c;
  --color-primary-dark: #155b66;
  --color-accent: #f2c14e;
  --color-success: #2f855a;
  --color-warning: #b7791f;
  --color-danger: #c53030;
  --shadow-sm: 0 2px 8px rgba(17, 24, 39, 0.08);
  --shadow-md: 0 10px 25px rgba(17, 24, 39, 0.12);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --space-1: 6px;
  --space-2: 10px;
  --space-3: 14px;
  --space-4: 18px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 40px;
  --space-8: 56px;
  --font-sans: "Manrope", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

html,
body {
  height: 100%;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: radial-gradient(circle at 15% 10%, #eaf2f5 0%, #f4f6f9 60%, #eef1f6 100%);
  letter-spacing: 0.1px;
  animation: pageFade 0.6s ease-out;
}

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

a:hover,
a:focus {
  color: var(--color-primary-dark);
  text-decoration: none;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-weight: 700;
  color: var(--color-text);
}

.page-header {
  margin: var(--space-6) 0 var(--space-5);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-2);
  font-weight: 700;
}

#page-wrapper {
  background-color: transparent;
  padding-top: var(--space-4);
}

@media (min-width: 768px) {
  #page-wrapper {
    padding: var(--space-6) var(--space-7);
  }
}

.navbar {
  border: none;
  box-shadow: var(--shadow-sm);
  background: var(--color-surface);
}

.navbar-default .navbar-brand {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 18px;
  letter-spacing: 0.2px;
}

.navbar-default .navbar-brand:hover {
  color: var(--color-primary-dark);
}

.navbar-header {
  padding-left: 6px;
}

.navbar-top-links > li > a {
  color: var(--color-text-muted);
  padding: 16px 12px;
}

.navbar-top-links > li > a:hover {
  color: var(--color-text);
}

.navbar-top-links .dropdown-menu {
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  padding: 8px 0;
  min-width: 180px;
}

.navbar-top-links .dropdown-menu li a {
  padding: 10px 18px;
  color: var(--color-text);
  font-weight: 600;
}

.navbar-top-links .dropdown-menu li a:hover {
  background: var(--color-surface-muted);
}

.navbar-top-links .dropdown-menu li.divider {
  margin: 6px 0;
}

.sidebar {
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.sidebar ul li {
  border-bottom: 1px solid var(--color-border);
}

.sidebar ul li a {
  color: var(--color-text);
  font-weight: 600;
  padding: 14px 20px;
  transition: background 0.2s ease, color 0.2s ease;
}

.sidebar ul li a.active,
.sidebar ul li a:hover {
  background: var(--color-surface-muted);
  color: var(--color-primary);
  border-left: 3px solid var(--color-primary);
}

.sidebar ul li a i {
  width: 20px;
  text-align: center;
  margin-right: 6px;
}

.navbar-default .navbar-nav > .open > a,
.navbar-default .navbar-nav > .open > a:focus,
.navbar-default .navbar-nav > .open > a:hover {
  background: var(--color-surface-muted);
}

.panel {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.panel-heading {
  background: var(--color-surface-muted);
  border-bottom: 1px solid var(--color-border);
  font-weight: 700;
}

.panel-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.panel-green > .panel-heading {
  background: linear-gradient(135deg, #1f7a8c, #2c9a94);
  border-color: transparent;
}

.panel-green,
.panel-green > a {
  color: #ffffff;
  border-color: transparent;
}

.panel-green .panel-footer {
  color: var(--color-text);
}

.huge {
  font-size: 34px;
  font-weight: 700;
}

.btn {
  border-radius: 999px;
  padding: 10px 18px;
  font-weight: 600;
  transition: all 0.2s ease;
}

.btn-success {
  background: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-success:hover,
.btn-success:focus {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
}

.btn-danger {
  background: var(--color-danger);
  border-color: var(--color-danger);
}

.btn-danger:hover,
.btn-danger:focus {
  background: #a32727;
  border-color: #a32727;
}

.table {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.table > thead > tr > th {
  background: var(--color-surface-muted);
  border-bottom: 1px solid var(--color-border);
  font-weight: 700;
  color: var(--color-text);
}

.table > tbody > tr > td {
  border-top: 1px solid var(--color-border);
}

.table-hover > tbody > tr:hover {
  background: #f3f6fa;
}

.form-control {
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  box-shadow: none;
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(31, 122, 140, 0.12);
}

.well {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.list-group-item {
  border-color: var(--color-border);
  font-weight: 600;
}

.alert-error {
  background: #fdecec;
  color: #8a1f1f;
  border-color: #f7c2c2;
}

.footer {
  margin-top: var(--space-8);
  padding: var(--space-4);
  color: var(--color-text-muted);
}

.login-shell {
  max-width: 980px;
  margin: var(--space-8) auto;
  padding: var(--space-6);
}

@media (max-width: 767px) {
  .login-shell {
    padding: var(--space-4);
    margin: var(--space-5) auto;
  }
}

.login-card {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
  overflow: hidden;
  background: var(--color-surface);
}

.login-hero {
  padding: var(--space-6);
  background: linear-gradient(135deg, rgba(31, 122, 140, 0.12), rgba(242, 193, 78, 0.2));
}

.login-hero h2 {
  margin-top: 0;
}

.login-body {
  padding: var(--space-6);
}

.compact-form .form-group {
  margin-bottom: 12px;
}

.compact-form .help-block {
  margin-bottom: 0;
}

.section-title {
  font-size: 22px;
  margin-top: 0;
  margin-bottom: var(--space-4);
}

.card-grid {
  margin-top: var(--space-4);
}

.card-grid .panel {
  margin-bottom: var(--space-5);
}

.stagger-in {
  animation: cardRise 0.5s ease-out both;
}

.stagger-in:nth-child(1) { animation-delay: 0.05s; }
.stagger-in:nth-child(2) { animation-delay: 0.12s; }
.stagger-in:nth-child(3) { animation-delay: 0.18s; }
.stagger-in:nth-child(4) { animation-delay: 0.24s; }
.stagger-in:nth-child(5) { animation-delay: 0.3s; }
.stagger-in:nth-child(6) { animation-delay: 0.36s; }

.table-shell {
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
}

.table-shell .table {
  margin-bottom: 0;
  border: none;
}

.table-shell .table > thead > tr > th,
.table-shell .table > tbody > tr > td {
  padding: 14px 16px;
}

.table-shell .table > thead > tr > th {
  position: sticky;
  top: 0;
  z-index: 1;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: var(--space-4);
}

.section-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}

.section-card + .section-card {
  margin-top: var(--space-5);
}

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

.empty-state {
  text-align: center;
  padding: var(--space-6);
  color: var(--color-text-muted);
}

.empty-state h4 {
  color: var(--color-text);
  margin-top: 0;
}

.empty-state .btn {
  margin-top: var(--space-3);
}

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

@keyframes pageFade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  body {
    animation: none !important;
  }

  .stagger-in {
    animation: none !important;
  }
}