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

:root {
  --blue:     #2563eb;
  --blue-lt:  #dbeafe;
  --blue-dk:  #1d4ed8;
  --green:    #16a34a;
  --green-lt: #dcfce7;
  --red:      #dc2626;
  --red-lt:   #fee2e2;
  --amber:    #d97706;
  --amber-lt: #fef3c7;
  --bg:       #f8fafc;
  --surface:  #ffffff;
  --border:   #e2e8f0;
  --text:     #0f172a;
  --muted:    #64748b;
  --sidebar-w: 220px;
  --radius:   8px;
  --shadow:   0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  display: flex;
  min-height: 100vh;
}

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

/* ── Sidebar ─────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--text);
  color: #cbd5e1;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 18px 16px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.brand-icon { font-size: 20px; }
.brand-name { font-weight: 700; color: #fff; font-size: 15px; letter-spacing: -.3px; }

.sidebar-nav {
  list-style: none;
  padding: 12px 0;
  flex: 1;
}
.sidebar-nav li a {
  display: block;
  padding: 9px 18px;
  color: #94a3b8;
  border-radius: 0;
  transition: background .15s, color .15s;
  font-size: 13.5px;
}
.sidebar-nav li a:hover, .sidebar-nav li a.active {
  background: rgba(255,255,255,.07);
  color: #fff;
  text-decoration: none;
}
.sidebar-nav li a.active { border-left: 3px solid var(--blue); }
.nav-section {
  padding: 18px 18px 6px;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: #475569;
}

.sidebar-footer {
  padding: 14px 18px;
  border-top: 1px solid rgba(255,255,255,.08);
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.user-name { font-size: 12px; color: #94a3b8; }
.btn-logout {
  font-size: 12px;
  color: #94a3b8;
  padding: 5px 0;
}
.btn-logout:hover { color: var(--red); text-decoration: none; }

/* ── Main content ────────────────────────── */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  padding: 28px 32px;
  max-width: 1100px;
}

.page-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
}
.page-title {
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.4px;
}
.page-subtitle {
  font-size: 13px;
  color: var(--muted);
  margin-top: 2px;
}

/* ── Cards ───────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px 24px;
  margin-bottom: 20px;
}
.card-title {
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text);
}

/* ── Stats grid (dashboard) ──────────────── */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 14px;
  margin-bottom: 28px;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow);
}
.stat-label { font-size: 11px; text-transform: uppercase; letter-spacing: .6px; color: var(--muted); }
.stat-value { font-size: 28px; font-weight: 700; margin-top: 4px; color: var(--text); }
.stat-sub   { font-size: 12px; color: var(--muted); margin-top: 2px; }

/* ── Tables ──────────────────────────────── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
thead th {
  text-align: left;
  padding: 10px 14px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}
tbody td {
  padding: 11px 14px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #f8fafc; }

/* ── Buttons ─────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background .15s, border-color .15s, box-shadow .15s;
  text-decoration: none;
  line-height: 1;
}
.btn:hover { text-decoration: none; }
.btn-primary   { background: var(--blue);  color: #fff; border-color: var(--blue-dk); }
.btn-primary:hover { background: var(--blue-dk); }
.btn-secondary { background: var(--surface); color: var(--text); border-color: var(--border); }
.btn-secondary:hover { background: var(--bg); }
.btn-danger    { background: var(--red); color: #fff; border-color: #b91c1c; }
.btn-danger:hover { background: #b91c1c; }
.btn-sm { padding: 5px 11px; font-size: 12px; }
.btn-group { display: flex; gap: 8px; flex-wrap: wrap; }

/* ── Forms ───────────────────────────────── */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-full  { grid-column: 1 / -1; }

.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-label { font-size: 13px; font-weight: 500; color: var(--text); }
.form-hint  { font-size: 11px; color: var(--muted); }

input[type=text], input[type=email], input[type=password], input[type=number],
input[type=url], select, textarea {
  width: 100%;
  padding: 8px 11px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 13px;
  font-family: inherit;
  background: var(--surface);
  color: var(--text);
  transition: border-color .15s, box-shadow .15s;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
textarea { resize: vertical; min-height: 80px; }

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
}
.checkbox-row input[type=checkbox] { width: auto; }

.form-actions {
  display: flex;
  gap: 10px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

/* ── Alerts / flash messages ─────────────── */
.alert {
  padding: 11px 16px;
  border-radius: 6px;
  font-size: 13px;
  margin-bottom: 16px;
  border: 1px solid;
}
.alert-success { background: var(--green-lt); color: #14532d; border-color: #86efac; }
.alert-error   { background: var(--red-lt);   color: #7f1d1d; border-color: #fca5a5; }
.alert-warning { background: var(--amber-lt); color: #78350f; border-color: #fcd34d; }
.alert-info    { background: var(--blue-lt);  color: #1e3a8a; border-color: #93c5fd; }

/* ── Badges ──────────────────────────────── */
.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}
.badge-active   { background: var(--green-lt); color: #15803d; }
.badge-inactive { background: var(--border);   color: var(--muted); }
.badge-promo    { background: var(--amber-lt); color: #92400e; }
.badge-admin    { background: var(--blue-lt);  color: #1e40af; }

/* ── Price display ───────────────────────── */
.price-current { font-size: 18px; font-weight: 700; color: var(--text); }
.price-prev    { font-size: 12px; color: var(--muted); text-decoration: line-through; }
.trend-down    { color: var(--green); font-weight: 600; }
.trend-up      { color: var(--red);   font-weight: 600; }
.trend-flat    { color: var(--muted); }

/* ── Alert detail / URL list ─────────────── */
.url-card {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 14px 16px;
  margin-bottom: 10px;
  background: var(--surface);
}
.url-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.url-site { font-weight: 600; font-size: 13px; }
.url-link { font-size: 11px; color: var(--muted); word-break: break-all; }
.url-type-badge {
  font-size: 10px;
  padding: 2px 7px;
  border-radius: 20px;
  background: #f1f5f9;
  color: var(--muted);
  border: 1px solid var(--border);
}

/* ── Custom fields ───────────────────────── */
.fields-grid { display: flex; flex-direction: column; gap: 8px; }
.field-row   {
  display: flex;
  gap: 8px;
  align-items: center;
}
.field-row input { flex: 1; }
.field-name { font-weight: 500; }

/* ── Chart container ─────────────────────── */
.chart-container { position: relative; height: 260px; margin-top: 10px; }

/* ── Login page ──────────────────────────── */
.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}
.login-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px 44px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 4px 24px rgba(0,0,0,.08);
}
.login-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 6px;
}
.login-sub { font-size: 13px; color: var(--muted); margin-bottom: 28px; }
.login-card .form-group { margin-bottom: 14px; }

/* ── Install page ────────────────────────── */
.install-wrap {
  max-width: 640px;
  margin: 40px auto;
  padding: 0 20px;
}
.install-step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  margin-bottom: 20px;
  box-shadow: var(--shadow);
}
.install-title {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
}
.install-sub { color: var(--muted); font-size: 13px; margin-bottom: 24px; }

/* ── Responsive ──────────────────────────── */
@media (max-width: 768px) {
  .sidebar { width: 100%; height: auto; position: relative; flex-direction: row; flex-wrap: wrap; }
  .main-content { margin-left: 0; padding: 16px; }
  .form-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}

/* ── App footer ──────────────────────────────── */
.app-footer {
  margin-left: var(--sidebar-w);
  padding: 10px 32px;
  font-size: 11px;
  color: #94a3b8;
  border-top: 1px solid var(--border);
}