@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-light: #eef2ff;
  --success: #16a34a;
  --success-bg: #f0fdf4;
  --error: #dc2626;
  --error-bg: #fef2f2;
  --warning: #d97706;
  --warning-bg: #fffbeb;
  --text: #111827;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  --bg: #f9fafb;
  --card: #ffffff;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.07), 0 2px 4px -1px rgba(0,0,0,.05);
}

body {
  font-family: 'DM Sans', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.6;
}

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

.sidebar {
  width: 240px;
  background: var(--card);
  border-right: 1px solid var(--border);
  padding: 24px 0;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
}

.sidebar-logo {
  padding: 0 20px 24px;
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}

.sidebar-logo span { color: var(--text-muted); font-weight: 400; font-size: 12px; display: block; }

.sidebar nav { flex: 1; }
.sidebar nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  border-radius: 8px;
  margin: 2px 8px;
  transition: background .15s, color .15s;
}
.sidebar nav a:hover, .sidebar nav a.active {
  background: var(--primary-light);
  color: var(--primary);
}
.sidebar nav a svg { flex-shrink: 0; }

.sidebar-footer {
  padding: 16px 20px 0;
  border-top: 1px solid var(--border);
}
.sidebar-footer a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.sidebar-footer a:hover { color: var(--error); }

.main { margin-left: 240px; flex: 1; padding: 32px; min-width: 0; }

/* ── Page header ── */
.page-header { margin-bottom: 28px; }
.page-header h1 { font-size: 24px; font-weight: 700; }
.page-header p  { color: var(--text-muted); margin-top: 4px; }

/* ── Cards ── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px;
}

.card + .card { margin-top: 20px; }

.card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Stats grid ── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 20px;
}

.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
}
.stat-card .stat-label { font-size: 13px; color: var(--text-muted); font-weight: 500; }
.stat-card .stat-value { font-size: 28px; font-weight: 700; margin-top: 4px; }
.stat-card .stat-sub   { font-size: 12px; color: var(--text-muted); margin-top: 2px; }

/* ── Status badges ── */
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
}
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-error   { background: var(--error-bg);   color: var(--error);   }
.badge-warning { background: var(--warning-bg); color: var(--warning); }

.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: currentColor;
}

/* ── Status grid ── */
.status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
  margin-bottom: 20px;
}
.status-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: var(--shadow);
}
.status-item .status-icon { font-size: 22px; }
.status-item .status-info .label  { font-size: 12px; color: var(--text-muted); }
.status-item .status-info .value  { font-weight: 600; }

/* ── Table ── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; padding: 10px 12px; font-size: 12px; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .04em; border-bottom: 1px solid var(--border); }
td { padding: 12px; border-bottom: 1px solid var(--border); }
tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--bg); }

/* ── Forms ── */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; color: var(--text); }
.form-group input[type="text"],
.form-group input[type="password"],
.form-group input[type="email"],
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  font-family: inherit;
  font-size: 14px;
  background: var(--card);
  color: var(--text);
  transition: border-color .15s, box-shadow .15s;
  outline: none;
}
.form-group select {
  appearance: none;
  padding-right: 38px;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' viewBox='0 0 24 24'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,.12);
}
.form-group .hint { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: 8px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background .15s, opacity .15s, box-shadow .15s;
  text-decoration: none;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-secondary { background: var(--card); color: var(--text); border-color: var(--border); }
.btn-secondary:hover { background: var(--bg); }
.btn-danger { background: var(--error-bg); color: var(--error); border-color: #fca5a5; }
.btn-danger:hover { background: #fee2e2; }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-sm { padding: 6px 12px; font-size: 13px; }

.btn-row { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }

/* ── Alert ── */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 14px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 12px;
}
.alert-success { background: var(--success-bg); color: var(--success); border: 1px solid #bbf7d0; }
.alert-error   { background: var(--error-bg);   color: var(--error);   border: 1px solid #fca5a5; }
.alert-info    { background: var(--primary-light); color: var(--primary); border: 1px solid #c7d2fe; }
.alert:empty, .alert.hidden { display: none; }

/* ── Checkbox list ── */
.checkbox-list { display: flex; flex-direction: column; gap: 10px; }
.checkbox-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
}
.checkbox-item:hover { border-color: var(--primary); background: var(--primary-light); }
.checkbox-item input[type="checkbox"] { accent-color: var(--primary); width: 16px; height: 16px; cursor: pointer; }
.status-dot-sm { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.checkbox-item label { cursor: pointer; font-size: 14px; font-weight: 500; flex: 1; }

/* ── Section divider ── */
.section-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--border);
}

/* ── Login ── */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}
.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  padding: 40px;
  width: 100%;
  max-width: 400px;
}
.login-card h1 {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 4px;
  color: var(--primary);
}
.login-card p { color: var(--text-muted); margin-bottom: 28px; font-size: 14px; }
.login-card .btn { width: 100%; justify-content: center; padding: 11px; font-size: 15px; }

/* ── Spinner ── */
.spinner {
  display: inline-block;
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .6s linear infinite;
  vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Loading skeleton ── */
.skeleton {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: 4px;
  height: 20px;
}
@keyframes shimmer { 0%{background-position:200% 0} 100%{background-position:-200% 0} }

/* ── Responsive ── */
@media (max-width: 768px) {
  .sidebar { width: 200px; }
  .main { margin-left: 200px; padding: 20px; }
}
@media (max-width: 600px) {
  .sidebar { display: none; }
  .main { margin-left: 0; padding: 16px; }
}