:root {
  --bg: #0b0c10;
  --bg-elevated: #15171c;
  --card: #1a1d24;
  --border: #2a2d35;
  --accent: #ff4500;
  --accent-hover: #ff6a33;
  --text: #f2f3f5;
  --text-muted: #9aa0a8;
  --danger: #e5484d;
  --danger-hover: #ff6169;
  --success: #34c759;
  --radius: 12px;
  --radius-sm: 8px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.5;
  min-height: 100vh;
}

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

h1 { font-size: 1.5rem; margin: 0 0 4px; }
h2 { font-size: 1.05rem; margin: 0 0 12px; }

.text-muted { color: var(--text-muted); }
.text-sm { font-size: 0.85rem; }

/* Navbar */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 14px 24px;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 999;
  background: var(--bg);
}
.navbar-brand { color: var(--text); font-weight: 700; font-size: 1.1rem; }
.navbar-brand-accent { color: var(--accent); }
.navbar-links { display: flex; gap: 4px; flex-wrap: wrap; }
.navlink { color: var(--text-muted); padding: 6px 10px; border-radius: var(--radius-sm); font-size: 0.9rem; }
.navlink:hover { color: var(--text); background: var(--bg-elevated); }
.navlink-active { color: var(--text); background: var(--bg-elevated); }
.navbar-user { display: flex; align-items: center; gap: 10px; }
.navbar-username { font-size: 0.9rem; color: var(--text-muted); }
.navbar-logout-form { margin: 0; }

/* Layout */
.main { max-width: 1280px; margin: 0 auto; padding: 24px 20px 60px; }
.page-header { margin-bottom: 20px; }

/* Card */
.card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px 20px; margin-bottom: 18px; }
.card-header-row { display: flex; align-items: center; justify-content: space-between; margin-bottom: 12px; }
.card-header-row h2 { margin: 0; }

/* Auth pages */
.auth-shell { display: flex; justify-content: center; padding-top: 8vh; }
.auth-card { width: 100%; max-width: 380px; }
.stack-form { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
.inline-form { display: flex; gap: 10px; flex-wrap: wrap; }
.form-error { color: var(--danger); font-size: 0.9rem; background: rgba(229, 72, 77, 0.1); padding: 8px 10px; border-radius: var(--radius-sm); }

/* Inputs & buttons */
.input {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  width: 100%;
}
.input:focus { outline: none; border-color: var(--accent); }

.btn {
  border: none;
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
.btn-sm { padding: 6px 10px; font-size: 0.8rem; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-hover); }
.btn-secondary { background: var(--bg-elevated); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { border-color: var(--accent); }
.btn-danger { background: transparent; color: var(--danger); border: 1px solid var(--danger); }
.btn-danger:hover { background: var(--danger); color: #fff; }
.btn-ghost { background: transparent; color: var(--text-muted); }
.btn-ghost:hover { color: var(--text); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Stat grid */
.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; margin-bottom: 18px; }
.stat-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.stat-value { font-size: 1.6rem; font-weight: 700; }
.stat-label { color: var(--text-muted); font-size: 0.82rem; margin-top: 4px; }

/* Badges & pills */
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 3px 10px; border-radius: 999px; font-size: 0.75rem; font-weight: 600; }
.badge-sm { padding: 2px 8px; font-size: 0.68rem; }
.badge-head { background: rgba(255, 69, 0, 0.15); color: var(--accent); }
.badge-admin { background: rgba(154, 160, 168, 0.15); color: var(--text-muted); }
.badge-info { background: rgba(52, 199, 89, 0.15); color: var(--success); }
.pill { background: var(--bg-elevated); border: 1px solid var(--border); padding: 2px 8px; border-radius: 999px; font-size: 0.78rem; }

/* Toolbar */
.toolbar { display: flex; gap: 10px; margin-bottom: 14px; flex-wrap: wrap; }
.toolbar .input { max-width: 280px; }
.toolbar select.input { max-width: 240px; }

/* Table */
.table-scroll { overflow-x: auto; }
.table { width: 100%; border-collapse: collapse; font-size: 0.9rem; table-layout: fixed; }
.table th, .table td { padding: 10px 12px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: middle; }
.table th { color: var(--text-muted); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.03em; }
.cell-user { width: 20%; }
.user-inline { display: flex; align-items: center; gap: 10px; min-width: 0; }
.user-inline a { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; min-width: 0; flex: 1; }
.cell-actions { width: 15%; }
.actions-inline { display: flex; gap: 6px; flex-wrap: wrap; }
.table th:first-child { width: 20%; }
.table th:last-child { width: 15%; }

/* Avatar */
.avatar { border-radius: 50%; object-fit: cover; flex-shrink: 0; }
.avatar-sm { width: 28px; height: 28px; }
.avatar-md { width: 40px; height: 40px; }
.avatar-lg { width: 64px; height: 64px; }
.avatar-fallback { display: flex; align-items: center; justify-content: center; background: var(--accent); color: #fff; font-weight: 700; }

/* Toasts */
.toast-root { position: fixed; bottom: 20px; right: 20px; display: flex; flex-direction: column; gap: 8px; z-index: 2000; }
.toast { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 10px 14px; font-size: 0.88rem; max-width: 320px; box-shadow: 0 4px 20px rgba(0,0,0,0.4); }
.toast-error { border-color: var(--danger); color: var(--danger); }
.toast-success { border-color: var(--success); color: var(--success); }

@media (max-width: 640px) {
  .navbar { padding: 12px 16px; }
  .main { padding: 16px 14px 40px; }
  .table th, .table td { padding: 8px; }
}