/* ==========================================================================
   Udumalai Runners Admin — Design Tokens
   A "scoreboard" aesthetic: deep navy court, brand gold accent,
   teal reserved for live/active status only, tabular numerals for stats.
   ========================================================================== */
:root {
  --bg-deep: #0b1730;
  --bg-panel: #122242;
  --bg-panel-alt: #172a4d;
  --bg-hover: #1d3358;
  --border: #2a3d64;
  --border-soft: #1f3157;

  --accent: #c9973b;         /* brand gold - primary actions */
  --accent-dark: #a6752a;
  --accent-soft: rgba(201, 151, 59, 0.16);

  --teal: #17d9b0;           /* live / success / active indicator */
  --teal-soft: rgba(23, 217, 176, 0.14);

  --warning: #ffc24b;
  --warning-soft: rgba(255, 194, 75, 0.14);

  --danger: #ff4d6a;
  --danger-soft: rgba(255, 77, 106, 0.14);

  --text-primary: #edf1f7;
  --text-muted: #8b96ab;
  --text-faint: #5b6579;

  --radius: 10px;
  --radius-sm: 6px;
  --shadow-panel: 0 8px 24px rgba(0, 0, 0, 0.28);

  --font-display: 'Oswald', sans-serif;
  --font-body: 'Work Sans', sans-serif;
}

* { box-sizing: border-box; }

body {
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 14.5px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6, .font-display {
  font-family: var(--font-display);
  letter-spacing: -0.01em;
}

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

::selection { background: var(--accent-soft); color: var(--text-primary); }

/* Focus visibility (accessibility floor) */
a:focus-visible, button:focus-visible, input:focus-visible,
select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}

/* ==========================================================================
   Layout shell
   ========================================================================== */
.admin-shell {
  display: flex;
  min-height: 100vh;
}

/* ---------- Sidebar ---------- */
.admin-sidebar {
  width: 250px;
  flex-shrink: 0;
  background: var(--bg-panel);
  border-right: 1px solid var(--border-soft);
  min-height: 100vh;
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 22px 20px;
  border-bottom: 1px solid var(--border-soft);
}

.sidebar-logo {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  flex-shrink: 0;
  object-fit: cover;
  background: #fff;
}

.sidebar-brand .name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 1.2;
  color: var(--text-primary);
}
.sidebar-brand .sub {
  font-size: 11px;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.sidebar-nav {
  padding: 16px 12px;
  flex: 1;
}

.sidebar-nav .nav-label {
  font-size: 10.5px;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--text-faint);
  padding: 10px 12px 6px;
  font-weight: 600;
}

.sidebar-nav a.nav-link {
  display: flex;
  align-items: center;
  gap: 11px;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 2px;
  border-left: 3px solid transparent;
  transition: background 0.15s ease, color 0.15s ease;
}

.sidebar-nav a.nav-link i { font-size: 16px; width: 18px; text-align: center; }

.sidebar-nav a.nav-link:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.sidebar-nav a.nav-link.active {
  background: var(--accent-soft);
  color: #ffb199;
  border-left-color: var(--accent);
  font-weight: 600;
}
.sidebar-nav a.nav-link.active i { color: var(--accent); }

.sidebar-foot {
  padding: 14px 20px 20px;
  border-top: 1px solid var(--border-soft);
  font-size: 12px;
  color: var(--text-faint);
}

/* ---------- Topbar ---------- */
.admin-main { flex: 1; min-width: 0; }

.admin-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 28px;
  border-bottom: 1px solid var(--border-soft);
  background: rgba(20, 29, 46, 0.6);
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(6px);
}

.admin-topbar .page-title {
  font-size: 19px;
  font-weight: 600;
  color: var(--text-primary);
}
.admin-topbar .page-eyebrow {
  font-size: 11.5px;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 2px;
}

.admin-user {
  display: flex;
  align-items: center;
  gap: 10px;
}
.admin-user .avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--bg-panel-alt);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 13px;
  color: var(--accent);
}
.admin-user .name { font-size: 13.5px; font-weight: 600; color: var(--text-primary); }
.admin-user .role { font-size: 11px; color: var(--text-faint); }

.admin-content { padding: 26px 28px 60px; }

/* ==========================================================================
   Scoreboard stat cards (dashboard signature element)
   ========================================================================== */
.stat-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 18px 20px;
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--stat-accent, var(--accent));
}
.stat-card .stat-label {
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-faint);
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 7px;
  margin-bottom: 10px;
}
.stat-card .stat-label i { color: var(--stat-accent, var(--accent)); font-size: 13px; }
.stat-card .stat-value {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
  line-height: 1;
}
.stat-card .stat-foot {
  margin-top: 8px;
  font-size: 12px;
  color: var(--text-muted);
}

/* ==========================================================================
   Panels / Cards
   ========================================================================== */
.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow-panel);
}
.panel-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.panel-header h5 {
  font-size: 15.5px;
  font-weight: 600;
  margin: 0;
  color: var(--text-primary);
}
.panel-body { padding: 20px; }

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 13.5px;
  border-radius: var(--radius-sm);
  padding: 9px 16px;
  border: 1px solid transparent;
  transition: all 0.15s ease;
}
.btn-accent {
  background: var(--accent);
  color: #fff;
}
.btn-accent:hover { background: var(--accent-dark); color: #fff; }

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

.btn-ghost-danger {
  color: var(--danger);
  background: transparent;
  border: 1px solid var(--danger-soft);
}
.btn-ghost-danger:hover { background: var(--danger-soft); color: var(--danger); }

.btn-icon {
  width: 34px; height: 34px;
  display: inline-flex; align-items: center; justify-content: center;
  padding: 0;
}
.btn.disabled, a.btn.disabled {
  opacity: 0.35;
  pointer-events: none;
  cursor: not-allowed;
}

/* ==========================================================================
   Forms
   ========================================================================== */
.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.form-control, .form-select {
  background: var(--bg-panel-alt);
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-size: 14px;
}
.form-control:focus, .form-select:focus {
  background: var(--bg-panel-alt);
  border-color: var(--accent);
  color: var(--text-primary);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.form-control::placeholder { color: var(--text-faint); }
.form-text { color: var(--text-faint); font-size: 12px; }
textarea.form-control { resize: vertical; }

.form-check-input {
  background-color: var(--bg-panel-alt);
  border-color: var(--border);
}
.form-check-input:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}

/* File dropzone */
.file-drop {
  border: 1.5px dashed var(--border);
  border-radius: var(--radius);
  background: var(--bg-panel-alt);
  padding: 28px 20px;
  text-align: center;
  color: var(--text-muted);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.file-drop:hover, .file-drop.dragover {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--text-primary);
}
.file-drop i { font-size: 26px; color: var(--accent); margin-bottom: 8px; display: block; }

/* ==========================================================================
   Tables
   ========================================================================== */
.table-clean {
  width: 100%;
  border-collapse: collapse;
  color: var(--text-primary);
}
.table-clean thead th {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  font-weight: 600;
  border-bottom: 1px solid var(--border-soft);
  padding: 10px 14px;
  text-align: left;
  white-space: nowrap;
}
.table-clean tbody td {
  padding: 13px 14px;
  border-bottom: 1px solid var(--border-soft);
  font-size: 13.8px;
  vertical-align: middle;
}
.table-clean tbody tr:hover { background: var(--bg-panel-alt); }
.table-clean tbody tr:last-child td { border-bottom: none; }

.row-thumb {
  width: 46px; height: 46px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  background: var(--bg-panel-alt);
  border: 1px solid var(--border-soft);
}

/* ==========================================================================
   Badges (status pills)
   ========================================================================== */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 100px;
  font-size: 11.5px;
  font-weight: 600;
  text-transform: capitalize;
}
.badge-pill::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: currentColor;
}
.badge-upcoming { background: var(--teal-soft); color: var(--teal); }
.badge-ongoing  { background: var(--warning-soft); color: var(--warning); }
.badge-completed{ background: rgba(139,150,171,0.16); color: var(--text-muted); }
.badge-cancelled{ background: var(--danger-soft); color: var(--danger); }
.badge-active   { background: var(--teal-soft); color: var(--teal); }
.badge-hidden   { background: rgba(139,150,171,0.16); color: var(--text-muted); }

/* ==========================================================================
   Gallery grid
   ========================================================================== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 18px;
}
.gallery-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.gallery-card:hover { transform: translateY(-3px); border-color: var(--border); }
.gallery-card .thumb-wrap {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--bg-panel-alt);
  position: relative;
}
.gallery-card .thumb-wrap img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.3s ease;
}
.gallery-card:hover .thumb-wrap img { transform: scale(1.05); }
.gallery-card .thumb-actions {
  position: absolute;
  top: 8px; right: 8px;
  display: flex;
  gap: 6px;
  opacity: 0;
  transition: opacity 0.15s ease;
}
.gallery-card:hover .thumb-actions { opacity: 1; }
.gallery-card .thumb-actions a {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: rgba(12, 18, 32, 0.85);
  backdrop-filter: blur(3px);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-primary);
  font-size: 13px;
  border: 1px solid var(--border);
}
.gallery-card .thumb-actions a:hover.edit { color: var(--teal); }
.gallery-card .thumb-actions a:hover.delete { color: var(--danger); }
.gallery-card .card-body-sm {
  padding: 10px 12px 12px;
}
.gallery-card .g-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.gallery-card .g-meta {
  font-size: 11px;
  color: var(--text-faint);
  margin-top: 2px;
}

/* ==========================================================================
   Empty states
   ========================================================================== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.empty-state i {
  font-size: 40px;
  color: var(--border);
  margin-bottom: 14px;
  display: block;
}
.empty-state h6 { color: var(--text-primary); margin-bottom: 6px; }

/* ==========================================================================
   Login page
   ========================================================================== */
.login-shell {
  min-height: 100vh;
  display: flex;
  background: var(--bg-deep);
  position: relative;
  overflow: hidden;
}
.login-shell::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, var(--accent-soft) 0%, transparent 70%);
  top: -200px; right: -150px;
}
.login-shell::after {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  background: radial-gradient(circle, var(--teal-soft) 0%, transparent 70%);
  bottom: -200px; left: -150px;
}
.login-card {
  width: 100%;
  max-width: 400px;
  margin: auto;
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: 14px;
  padding: 36px 34px;
  box-shadow: var(--shadow-panel);
  position: relative;
  z-index: 1;
}
.login-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 26px;
}
.login-logo {
  width: 52px; height: 52px;
  border-radius: 50%;
  object-fit: cover;
  background: #fff;
  flex-shrink: 0;
}
.login-brand .title { font-family: var(--font-display); font-weight: 600; font-size: 18px; letter-spacing: 0.02em; text-transform: uppercase; color: var(--text-primary); }
.login-brand .sub { font-size: 12px; color: var(--text-faint); }

.alert-flash {
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-size: 13px;
  margin-bottom: 16px;
  border: 1px solid transparent;
}
.alert-flash.error { background: var(--danger-soft); color: #ff8fa2; border-color: rgba(255,77,106,0.3); }
.alert-flash.success { background: var(--teal-soft); color: #6ff0d4; border-color: rgba(23,217,176,0.3); }

/* ==========================================================================
   Misc utility
   ========================================================================== */
.text-faint { color: var(--text-faint) !important; }
.text-muted-c { color: var(--text-muted) !important; }
.border-soft { border-color: var(--border-soft) !important; }
.divider { height: 1px; background: var(--border-soft); border: none; margin: 20px 0; }

.modal-content {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  color: var(--text-primary);
}
.modal-header, .modal-footer { border-color: var(--border-soft); }
.btn-close { filter: invert(1) grayscale(1); opacity: 0.7; }

/* Responsive */
@media (max-width: 992px) {
  .admin-sidebar {
    position: fixed;
    left: -260px;
    z-index: 40;
    transition: left 0.2s ease;
    height: 100vh;
  }
  .admin-sidebar.open { left: 0; }
  .sidebar-backdrop {
    display: none;
    position: fixed; top: 0; right: 0; bottom: 0; left: 0;
    background: rgba(0,0,0,0.5);
    z-index: 30;
  }
  .sidebar-backdrop.show { display: block; }
}