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

:root {
  --bg: #f8f9fa;
  --surface: #ffffff;
  --border: #dee2e6;
  --text: #212529;
  --muted: #6c757d;
  --primary: #0d6efd;
  --primary-hover: #0b5ed7;
  --success: #198754;
  --warning: #fd7e14;
  --danger: #dc3545;
  --secondary: #6c757d;
  --radius: 6px;
  --font: system-ui, -apple-system, sans-serif;
}

body {
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
}

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

/* ── Layout ───────────────────────────────────────────────────────── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1rem; }

/* ── Navbar ───────────────────────────────────────────────────────── */
.navbar {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0.75rem 1rem;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.navbar-brand a {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
}

.navbar-menu {
  list-style: none;
  display: flex;
  gap: 1rem;
  align-items: center;
}

.navbar-menu a { color: var(--muted); font-size: 0.9rem; }
.navbar-menu a:hover { color: var(--text); text-decoration: none; }

/* ── Main content ─────────────────────────────────────────────────── */
main.container { padding: 2rem 1rem; }

.page-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.section { margin-bottom: 2rem; }
.section h2 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

/* ── Stats grid ───────────────────────────────────────────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
}

.stat-value { font-size: 2rem; font-weight: 700; color: var(--primary); }
.stat-label { font-size: 0.8rem; color: var(--muted); margin-top: 0.25rem; }

/* ── Alerts ───────────────────────────────────────────────────────── */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}
.alert-success { background: #d1e7dd; color: #0a3622; }
.alert-warning { background: #fff3cd; color: #664d03; }
.alert-danger  { background: #f8d7da; color: #58151c; }

/* ── Flash ────────────────────────────────────────────────────────── */
.flash {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}
.flash-success { background: #d1e7dd; color: #0a3622; }
.flash-danger  { background: #f8d7da; color: #58151c; }
.flash-warning { background: #fff3cd; color: #664d03; }

/* ── Buttons ──────────────────────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 0.4rem 0.9rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s;
}
.btn-primary   { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-primary:hover { background: var(--primary-hover); border-color: var(--primary-hover); text-decoration: none; }
.btn-danger    { background: var(--danger); color: #fff; border-color: var(--danger); }
.btn-sm        { padding: 0.25rem 0.6rem; font-size: 0.8rem; }
.btn-block     { display: block; width: 100%; text-align: center; }
.btn-link      { background: none; border: none; color: var(--muted); font-size: 0.9rem; cursor: pointer; padding: 0; }
.btn-link:hover { color: var(--text); text-decoration: underline; }

/* ── Tables ───────────────────────────────────────────────────────── */
.table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  font-size: 0.875rem;
}
.table th, .table td {
  padding: 0.6rem 0.8rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.table th { background: var(--bg); font-weight: 600; font-size: 0.8rem; color: var(--muted); }
.table tr:last-child td { border-bottom: none; }
.table tr:hover td { background: #f1f3f5; }
.table-sm th, .table-sm td { padding: 0.4rem 0.6rem; }

code {
  font-family: monospace;
  font-size: 0.8em;
  background: #f1f3f5;
  padding: 0.1em 0.3em;
  border-radius: 3px;
}

/* ── Badges ───────────────────────────────────────────────────────── */
.badge {
  display: inline-block;
  padding: 0.2em 0.5em;
  font-size: 0.75em;
  font-weight: 600;
  border-radius: 99px;
}
.badge-success   { background: #d1e7dd; color: #0a3622; }
.badge-warning   { background: #fff3cd; color: #664d03; }
.badge-danger    { background: #f8d7da; color: #58151c; }
.badge-primary   { background: #cfe2ff; color: #084298; }
.badge-secondary { background: #e2e3e5; color: #41464b; }

/* ── Forms ────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 1rem; }
.form-group label { display: block; font-size: 0.875rem; font-weight: 500; margin-bottom: 0.3rem; }
.form-control {
  width: 100%;
  max-width: 400px;
  padding: 0.4rem 0.7rem;
  font-size: 0.9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.15s;
}
.form-control:focus { border-color: var(--primary); }

/* ── Login ────────────────────────────────────────────────────────── */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  width: 100%;
  max-width: 360px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}
.login-card h1 { font-size: 1.2rem; margin-bottom: 0.25rem; }
.login-card h2 { font-size: 1rem; color: var(--muted); margin-bottom: 1.25rem; }
.login-card .form-control { max-width: 100%; margin-bottom: 1rem; }

/* ── Pagination ───────────────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1rem;
  font-size: 0.875rem;
}
.pagination-info { color: var(--muted); }

/* ── Utilities ────────────────────────────────────────────────────── */
.text-muted   { color: var(--muted); }
.text-warning { color: var(--warning); }
.muted        { color: var(--muted); }
.ml-2         { margin-left: 0.5rem; }