/* ============================================================
   Neyromarket Parser — UI Styles
   ============================================================ */

:root {
  --primary:      #2563eb;
  --primary-dark: #1d4ed8;
  --success:      #16a34a;
  --warning:      #d97706;
  --danger:       #dc2626;
  --gray-50:      #f9fafb;
  --gray-100:     #f3f4f6;
  --gray-200:     #e5e7eb;
  --gray-400:     #9ca3af;
  --gray-600:     #4b5563;
  --gray-800:     #1f2937;
  --white:        #ffffff;
  --radius:       8px;
  --shadow:       0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
  --shadow-lg:    0 4px 16px rgba(0,0,0,.12);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--gray-50);
  color: var(--gray-800);
  min-height: 100vh;
  font-size: 15px;
  line-height: 1.5;
}

/* ── Layout ── */
.container   { max-width: 900px; margin: 0 auto; padding: 0 20px; }
.page-center { display: flex; align-items: center; justify-content: center;
               min-height: 100vh; padding: 20px; }

/* ── Navbar ── */
.navbar {
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  padding: 14px 0;
  position: sticky; top: 0; z-index: 100;
  box-shadow: var(--shadow);
}
.navbar .inner {
  max-width: 900px; margin: 0 auto; padding: 0 20px;
  display: flex; align-items: center; justify-content: space-between;
}
.navbar .logo { font-size: 18px; font-weight: 700; color: var(--primary); text-decoration: none; }
.navbar .nav-links { display: flex; gap: 8px; align-items: center; }
.navbar .nav-links a {
  padding: 6px 14px; border-radius: var(--radius);
  color: var(--gray-600); text-decoration: none; font-size: 14px;
  transition: background .15s;
}
.navbar .nav-links a:hover   { background: var(--gray-100); }
.navbar .nav-links a.active  { background: var(--primary); color: var(--white); }

/* ── Tariff badge ── */
.tariff-badge {
  font-size: 12px; font-weight: 600; padding: 3px 10px;
  border-radius: 20px; background: var(--primary); color: var(--white);
}

/* ── Card ── */
.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
}
.card-title { font-size: 20px; font-weight: 700; margin-bottom: 20px; }

/* ── Auth forms ── */
.auth-card { width: 100%; max-width: 420px; }
.auth-card h1 { font-size: 24px; font-weight: 700; margin-bottom: 6px; }
.auth-card .subtitle { color: var(--gray-600); font-size: 14px; margin-bottom: 28px; }

/* ── Form elements ── */
.form-group       { margin-bottom: 18px; }
.form-group label { display: block; font-size: 13px; font-weight: 600;
                    color: var(--gray-600); margin-bottom: 6px; }
.form-control {
  width: 100%; padding: 10px 14px;
  border: 1.5px solid var(--gray-200); border-radius: var(--radius);
  font-size: 15px; background: var(--white);
  transition: border-color .15s, box-shadow .15s;
  outline: none;
}
.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.12);
}
select.form-control { cursor: pointer; }

/* ── Checkbox ── */
.form-check { display: flex; gap: 10px; align-items: flex-start; }
.form-check input[type="checkbox"] {
  width: 18px; height: 18px; margin-top: 2px;
  accent-color: var(--primary); cursor: pointer; flex-shrink: 0;
}
.form-check label { font-size: 13px; color: var(--gray-600); cursor: pointer; }
.form-check a { color: var(--primary); }

/* ── Checkboxes group ── */
.checkbox-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 10px; margin-top: 6px;
}
.checkbox-item { display: flex; gap: 8px; align-items: center; font-size: 14px; }
.checkbox-item input { accent-color: var(--primary); }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 10px 20px; border-radius: var(--radius);
  font-size: 15px; font-weight: 600; cursor: pointer;
  border: none; text-decoration: none;
  transition: background .15s, opacity .15s, transform .1s;
  gap: 6px;
}
.btn:active { transform: scale(.98); }
.btn:disabled { opacity: .5; cursor: not-allowed; }
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover:not(:disabled) { background: var(--primary-dark); }
.btn-block   { width: 100%; }
.btn-sm      { padding: 6px 14px; font-size: 13px; }
.btn-outline {
  background: transparent; color: var(--primary);
  border: 1.5px solid var(--primary);
}
.btn-outline:hover { background: var(--gray-50); }
.btn-danger  { background: var(--danger); color: var(--white); }

/* ── Alert ── */
.alert {
  padding: 12px 16px; border-radius: var(--radius);
  font-size: 14px; margin-bottom: 18px;
  display: flex; gap: 8px; align-items: flex-start;
}
.alert-error   { background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; }
.alert-success { background: #f0fdf4; color: #166534; border: 1px solid #bbf7d0; }
.alert-warning { background: #fffbeb; color: #92400e; border: 1px solid #fde68a; }
.alert-info    { background: #eff6ff; color: #1e40af; border: 1px solid #bfdbfe; }
.alert-icon    { flex-shrink: 0; font-size: 16px; }

/* ── Divider ── */
.divider { text-align: center; color: var(--gray-400); font-size: 13px;
           margin: 20px 0; position: relative; }
.divider::before {
  content: '';
  position: absolute; top: 50%; left: 0; right: 0;
  height: 1px; background: var(--gray-200);
}
.divider span { background: var(--white); padding: 0 10px; position: relative; }

/* ── Tabs ── */
.tabs { display: flex; gap: 2px; border-bottom: 2px solid var(--gray-200);
        margin-bottom: 24px; }
.tab-btn {
  padding: 10px 20px; background: none; border: none; cursor: pointer;
  font-size: 15px; font-weight: 500; color: var(--gray-600);
  border-bottom: 2px solid transparent; margin-bottom: -2px;
  transition: color .15s;
}
.tab-btn.active { color: var(--primary); border-bottom-color: var(--primary); }
.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* ── Usage bar ── */
.usage-bar-wrap { margin: 12px 0; }
.usage-bar-label {
  display: flex; justify-content: space-between;
  font-size: 13px; color: var(--gray-600); margin-bottom: 6px;
}
.usage-bar {
  height: 8px; background: var(--gray-200); border-radius: 4px; overflow: hidden;
}
.usage-bar-fill {
  height: 100%; background: var(--primary); border-radius: 4px;
  transition: width .4s ease;
}
.usage-bar-fill.warn  { background: var(--warning); }
.usage-bar-fill.over  { background: var(--danger); }

/* ── Tasks table ── */
.tasks-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.tasks-table th {
  text-align: left; padding: 10px 12px; font-size: 12px;
  font-weight: 600; color: var(--gray-600); text-transform: uppercase;
  border-bottom: 2px solid var(--gray-200); white-space: nowrap;
}
.tasks-table td { padding: 12px 12px; border-bottom: 1px solid var(--gray-100); }
.tasks-table tr:last-child td { border-bottom: none; }
.tasks-table tr:hover td { background: var(--gray-50); }

/* ── Status badges ── */
.status {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 3px 10px; border-radius: 20px; font-size: 12px; font-weight: 600;
}
.status-queued      { background: #fffbeb; color: #92400e; }
.status-in_progress { background: #eff6ff; color: #1e40af; }
.status-completed   { background: #f0fdf4; color: #166534; }
.status-failed      { background: #fef2f2; color: #991b1b; }
.status-cancelled   { background: var(--gray-100); color: var(--gray-600); }

/* ── Tariff cards ── */
.tariff-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 16px; margin-top: 8px;
}
.tariff-card {
  border: 2px solid var(--gray-200); border-radius: var(--radius);
  padding: 20px; cursor: pointer; transition: border-color .15s, box-shadow .15s;
  text-align: center;
}
.tariff-card:hover         { border-color: var(--primary); box-shadow: var(--shadow-lg); }
.tariff-card.current       { border-color: var(--primary); background: #eff6ff; }
.tariff-card .t-name       { font-weight: 700; font-size: 16px; margin-bottom: 8px; }
.tariff-card .t-limit      { color: var(--gray-600); font-size: 13px; margin-bottom: 12px; }
.tariff-card .t-price      { font-size: 22px; font-weight: 800; color: var(--primary); }
.tariff-card .t-price span { font-size: 13px; font-weight: 400; color: var(--gray-600); }

/* ── Stats row (admin) ── */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-bottom: 28px; }
.stat-card  { background: var(--white); border-radius: var(--radius);
              box-shadow: var(--shadow); padding: 20px; text-align: center; }
.stat-card .value { font-size: 28px; font-weight: 800; color: var(--primary); }
.stat-card .label { font-size: 12px; color: var(--gray-600); margin-top: 4px; }

/* ── Loading spinner ── */
.spinner {
  display: inline-block; width: 18px; height: 18px;
  border: 2px solid rgba(255,255,255,.4);
  border-top-color: white; border-radius: 50%;
  animation: spin .6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Empty state ── */
.empty-state { text-align: center; padding: 48px 20px; color: var(--gray-400); }
.empty-state .icon { font-size: 48px; margin-bottom: 12px; }
.empty-state p     { font-size: 15px; }

/* ── Links ── */
a { color: var(--primary); }
.text-sm   { font-size: 13px; }
.text-gray { color: var(--gray-600); }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.text-center { text-align: center; }

/* ── Responsive ── */
@media (max-width: 600px) {
  .stats-grid  { grid-template-columns: 1fr 1fr; }
  .tariff-grid { grid-template-columns: 1fr 1fr; }
  .checkbox-grid { grid-template-columns: 1fr; }
  .tasks-table .hide-sm { display: none; }
}