/* ═══════════════════════════════════════════════════════════════════════════
   S.N.A.F.U. Prevention — App Stylesheet
   Navy/White color scheme, IBM Plex Sans, dark mode support
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─── CSS Custom Properties (Light Mode) ─────────────────────────────────── */
:root {
  --navy:          #1e3a5f;
  --navy-dark:     #152c4a;
  --navy-light:    #2a4f82;
  --accent:        #3b82f6;
  --accent-hover:  #2563eb;

  --bg-app:        #f0f2f5;
  --bg-surface:    #ffffff;
  --bg-surface-2:  #f8fafc;
  --bg-hover:      #f1f5f9;

  --text-primary:  #0f172a;
  --text-secondary:#475569;
  --text-muted:    #94a3b8;
  --text-inverse:  #ffffff;

  --border:        #e2e8f0;
  --border-focus:  #3b82f6;

  --sidebar-bg:    #1e3a5f;
  --sidebar-hover: rgba(255,255,255,0.1);
  --sidebar-active:rgba(255,255,255,0.18);
  --sidebar-text:  rgba(255,255,255,0.85);
  --sidebar-muted: rgba(255,255,255,0.45);
  --sidebar-width: 240px;

  --topbar-bg:     #ffffff;
  --topbar-border: #e2e8f0;
  --topbar-height: 58px;

  --radius-sm:  4px;
  --radius:     6px;
  --radius-lg:  10px;
  --radius-xl:  14px;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.07), 0 1px 2px rgba(0,0,0,.05);
  --shadow:     0 4px 12px rgba(0,0,0,.08), 0 1px 3px rgba(0,0,0,.05);
  --shadow-lg:  0 10px 30px rgba(0,0,0,.12), 0 4px 8px rgba(0,0,0,.06);

  --success: #16a34a; --success-bg: #dcfce7; --success-border: #bbf7d0;
  --warning: #d97706; --warning-bg: #fef3c7; --warning-border: #fde68a;
  --danger:  #dc2626; --danger-bg:  #fee2e2; --danger-border:  #fecaca;
  --info:    #0ea5e9; --info-bg:    #e0f2fe; --info-border:    #bae6fd;
}

/* ─── Dark Mode ──────────────────────────────────────────────────────────── */
[data-theme="dark"] {
  --bg-app:        #0d1117;
  --bg-surface:    #161b22;
  --bg-surface-2:  #1c2333;
  --bg-hover:      #21293b;

  --text-primary:  #e6edf3;
  --text-secondary:#8b949e;
  --text-muted:    #484f58;

  --border:        #30363d;
  --border-focus:  #58a6ff;

  --sidebar-bg:    #0d1117;
  --topbar-bg:     #161b22;
  --topbar-border: #30363d;

  --success: #3fb950; --success-bg: #0d2e1a; --success-border: #1a4731;
  --warning: #e3b341; --warning-bg: #2d1f00; --warning-border: #5c3d00;
  --danger:  #f85149; --danger-bg:  #2d0f0f; --danger-border:  #5c1c1c;
  --info:    #58a6ff; --info-bg:    #0d1f3a; --info-border:    #1a3d6b;
}

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

html { font-size: 16px; -webkit-text-size-adjust: 100%; }

body {
  font-family: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-app);
  min-height: 100vh;
  transition: background 0.2s, color 0.2s;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; }

/* ─── App Layout ─────────────────────────────────────────────────────────── */
.app-wrapper {
  display: flex;
  min-height: 100vh;
}

/* ─── Sidebar ────────────────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-width);
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  overflow-y: auto;
  transition: transform 0.25s ease;
}

.sidebar-header {
  padding: 20px 12px 18px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.sidebar-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  color: #fff !important;
  text-decoration: none !important;
}

.sidebar-logo {
  width: 210px;
  max-width: calc(100% - 8px);
  height: auto;
  object-fit: contain;
  flex-shrink: 0;
  display: block;
}

.sidebar-brand-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  text-align: center;
  margin-top: 10px;
}

.sidebar-title {
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: 0.06em;
  color: #fff;
  line-height: 1.1;
  text-align: center;
}

.sidebar-subtitle {
  font-size: 0.6rem;
  font-weight: 300;
  font-style: italic;
  color: rgba(255,255,255,0.45);
  letter-spacing: 0.02em;
  line-height: 1.4;
  text-align: center;
  margin-top: 5px;
}

.sidebar-nav {
  flex: 1;
  padding: 12px 0;
}

.sidebar-nav ul {
  list-style: none;
}

.nav-section-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--sidebar-muted);
  padding: 14px 16px 4px;
}

.sidebar-nav li a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  color: var(--sidebar-text);
  font-size: 0.875rem;
  font-weight: 400;
  border-radius: 0;
  transition: background 0.15s, color 0.15s;
  text-decoration: none !important;
}

.sidebar-nav li a svg {
  width: 18px;
  height: 18px;
  fill: currentColor;
  flex-shrink: 0;
  opacity: 0.75;
}

.sidebar-nav li a:hover {
  background: var(--sidebar-hover);
  color: #fff;
}

.sidebar-nav li a.active {
  background: var(--sidebar-active);
  color: #fff;
  font-weight: 500;
}

.sidebar-nav li a.active svg { opacity: 1; }

.sidebar-footer {
  padding: 14px 16px;
  border-top: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.user-info { min-width: 0; }

.user-name {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.user-role {
  display: block;
  font-size: 0.6875rem;
  color: var(--sidebar-muted);
}

.btn-logout {
  color: var(--sidebar-muted);
  display: flex;
  align-items: center;
  padding: 4px;
  border-radius: var(--radius);
  transition: color 0.15s;
  flex-shrink: 0;
}

.btn-logout:hover { color: #f87171; }
.btn-logout svg { width: 18px; height: 18px; fill: currentColor; }

/* ─── Main Content ───────────────────────────────────────────────────────── */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-width: 0;
}

/* ─── Topbar ─────────────────────────────────────────────────────────────── */
.topbar {
  height: var(--topbar-height);
  background: var(--topbar-bg);
  border-bottom: 1px solid var(--topbar-border);
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 50;
}

.sidebar-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  padding: 4px;
  border-radius: var(--radius);
}

.sidebar-toggle svg { width: 22px; height: 22px; fill: currentColor; }
.sidebar-toggle:hover { background: var(--bg-hover); }

.page-title {
  flex: 1;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  color: var(--text-secondary);
  padding: 5px 7px;
  display: flex;
  align-items: center;
  transition: background 0.15s, border-color 0.15s;
}

.theme-toggle:hover { background: var(--bg-hover); }
.theme-toggle svg { width: 16px; height: 16px; fill: currentColor; }

[data-theme="light"] .icon-moon { display: none; }
[data-theme="dark"]  .icon-sun  { display: none; }

/* ─── Page Content ───────────────────────────────────────────────────────── */
.page-content {
  flex: 1;
  padding: 24px;
  max-width: 1400px;
  width: 100%;
}

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

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: var(--bg-surface);
}

.card-title {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary);
}

.card-body {
  padding: 20px;
}

/* ─── Stats Grid ─────────────────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.stat-card-label {
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.stat-card-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}

.stat-card-sub {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* ─── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, box-shadow 0.15s, opacity 0.15s;
  text-decoration: none !important;
  white-space: nowrap;
}

.btn svg { width: 15px; height: 15px; fill: currentColor; flex-shrink: 0; }

.btn-primary {
  background: var(--navy);
  color: #fff;
  border-color: var(--navy);
}
.btn-primary:hover { background: var(--navy-dark); border-color: var(--navy-dark); }

.btn-secondary {
  background: var(--bg-surface-2);
  color: var(--text-primary);
  border-color: var(--border);
}
.btn-secondary:hover { background: var(--bg-hover); }

.btn-success {
  background: var(--success);
  color: #fff;
  border-color: var(--success);
}
.btn-success:hover { filter: brightness(0.92); }

.btn-danger {
  background: var(--danger);
  color: #fff;
  border-color: var(--danger);
}
.btn-danger:hover { filter: brightness(0.92); }

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border);
}
.btn-outline:hover { background: var(--bg-hover); }

.btn-sm { padding: 4px 10px; font-size: 0.8125rem; }
.btn-lg { padding: 10px 20px; font-size: 1rem; }

.btn:disabled, .btn[disabled] { opacity: 0.55; cursor: not-allowed; }

/* ─── Forms ──────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 5px;
}

.form-label .required { color: var(--danger); margin-left: 2px; }

.form-control {
  display: block;
  width: 100%;
  padding: 7px 11px;
  font-family: inherit;
  font-size: 0.875rem;
  color: var(--text-primary);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: border-color 0.15s, box-shadow 0.15s;
  appearance: none;
  -webkit-appearance: none;
}

.form-control:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}

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

select.form-control {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath fill='%2394a3b8' d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  background-size: 18px;
  padding-right: 32px;
}

textarea.form-control { resize: vertical; min-height: 80px; }

.form-hint { font-size: 0.75rem; color: var(--text-muted); margin-top: 4px; }
.form-error { font-size: 0.75rem; color: var(--danger); margin-top: 4px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-row-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}

/* ─── Tables ─────────────────────────────────────────────────────────────── */
.table-wrap { overflow-x: auto; }

table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table thead tr {
  background: var(--bg-surface-2);
  border-bottom: 2px solid var(--border);
}

.data-table th {
  padding: 10px 14px;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  white-space: nowrap;
}

.data-table td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text-primary);
  vertical-align: middle;
}

.data-table tbody tr:hover { background: var(--bg-hover); }
.data-table tbody tr:last-child td { border-bottom: none; }

.table-actions { display: flex; gap: 6px; align-items: center; }

/* ─── Badges ─────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border-radius: 100px;
  white-space: nowrap;
}

.badge-success  { background: var(--success-bg); color: var(--success); border: 1px solid var(--success-border); }
.badge-warning  { background: var(--warning-bg); color: var(--warning); border: 1px solid var(--warning-border); }
.badge-danger   { background: var(--danger-bg);  color: var(--danger);  border: 1px solid var(--danger-border);  }
.badge-info     { background: var(--info-bg);    color: var(--info);    border: 1px solid var(--info-border);    }
.badge-secondary{ background: var(--bg-hover);   color: var(--text-secondary); border: 1px solid var(--border); }

/* ─── Alerts ─────────────────────────────────────────────────────────────── */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius);
  font-size: 0.875rem;
  border: 1px solid transparent;
  margin-bottom: 20px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.alert-success  { background: var(--success-bg); border-color: var(--success-border); color: var(--success); }
.alert-danger   { background: var(--danger-bg);  border-color: var(--danger-border);  color: var(--danger);  }
.alert-warning  { background: var(--warning-bg); border-color: var(--warning-border); color: var(--warning); }
.alert-info     { background: var(--info-bg);    border-color: var(--info-border);    color: var(--info);    }

/* ─── Modal ──────────────────────────────────────────────────────────────── */
.modal-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-backdrop.open { display: flex; }

.modal {
  background: var(--bg-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 560px;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalIn 0.2s ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: translateY(-16px) scale(0.98); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
  padding: 18px 22px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title { font-size: 1rem; font-weight: 600; }

.modal-close {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 4px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
}
.modal-close:hover { color: var(--text-primary); background: var(--bg-hover); }
.modal-close svg { width: 18px; height: 18px; fill: currentColor; }

.modal-body { padding: 20px 22px; }
.modal-footer {
  padding: 14px 22px 18px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  border-top: 1px solid var(--border);
}

/* ─── Filters bar ────────────────────────────────────────────────────────── */
.filters-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: flex-end;
  margin-bottom: 20px;
  padding: 16px 20px;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.filters-bar .form-group { margin-bottom: 0; min-width: 150px; }
.filters-bar .form-control { font-size: 0.8125rem; }

/* ─── Pagination ─────────────────────────────────────────────────────────── */
.pagination-nav { margin-top: 20px; display: flex; justify-content: center; }

.pagination {
  display: flex;
  list-style: none;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: center;
}

.page-item .page-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 8px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: background 0.12s, color 0.12s;
}

.page-item .page-link:hover { background: var(--bg-hover); text-decoration: none; }
.page-item.active .page-link { background: var(--navy); border-color: var(--navy); color: #fff; }

/* ─── Empty state ────────────────────────────────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-state svg {
  width: 48px;
  height: 48px;
  fill: var(--text-muted);
  margin-bottom: 12px;
  opacity: 0.5;
}

.empty-state p { font-size: 0.9375rem; }

/* ─── Section heading ────────────────────────────────────────────────────── */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  gap: 12px;
  flex-wrap: wrap;
}

.section-header h2 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* ─── Detail grid ────────────────────────────────────────────────────────── */
.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 24px;
}

.detail-item label {
  display: block;
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 2px;
}

.detail-item span {
  font-size: 0.9375rem;
  color: var(--text-primary);
  font-weight: 500;
}

/* ─── Login page ─────────────────────────────────────────────────────────── */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-app);
  padding: 24px;
}

.login-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 460px;
  padding: 36px 36px 32px;
}

.login-logo {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  margin-bottom: 28px;
}

.login-logo img {
  width: 260px;
  max-width: 100%;
  height: auto;
  object-fit: contain;
}

.login-logo h1 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  color: var(--navy);
  text-align: center;
}

.login-logo p {
  font-size: 0.75rem;
  font-weight: 300;
  font-style: italic;
  color: var(--text-muted);
  text-align: center;
  margin-top: -4px;
}

[data-theme="dark"] .login-logo h1 { color: var(--text-primary); }

/* Login logo swap — show correct version per theme */
[data-theme="light"] .login-logo-dark { display: none; }
[data-theme="dark"]  .login-logo-light { display: none; }

/* ─── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .main-content {
    margin-left: 0;
  }
  .sidebar-toggle { display: flex; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .page-content { padding: 16px; }
}

/* ─── Utility ────────────────────────────────────────────────────────────── */
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.text-muted { color: var(--text-muted); }
.text-danger { color: var(--danger); }
.text-success { color: var(--success); }
.text-right { text-align: right; }
.font-mono { font-family: 'IBM Plex Mono', monospace; font-size: 0.8125rem; }
.d-flex { display: flex; }
.align-center { align-items: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.w-full { width: 100%; }
.loading { opacity: 0.6; pointer-events: none; }