/* Website Monitor - stylesheet, following the project style guide (tokens + components) */

:root {
  /* Background scale */
  --color-bg: #141210;
  --color-surface: #1e1c19;
  --color-surface-2: #272420;
  --color-border: #302d29;
  --color-border-soft: #232120;

  /* Text */
  --color-text: #e8e4de;
  --color-text-muted: #8a8378;
  --color-text-faint: #4a4540;

  /* Accent */
  --color-accent: #e8a020;
  --color-accent-hover: #f0b040;
  --color-accent-dim: #3a2d10;

  /* Status */
  --color-success: #4caf7d;
  --color-success-bg: #0e2218;
  --color-warning: #e8a020;
  --color-warning-bg: #2a1e08;
  --color-error: #e05252;
  --color-error-bg: #2a0e0e;
  --color-info: #4a9ede;
  --color-info-bg: #0a1e30;

  /* Fonts */
  --font-sans: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

  /* Spacing */
  --sp-1: 4px; --sp-2: 8px; --sp-3: 12px; --sp-4: 16px; --sp-5: 20px;
  --sp-6: 24px; --sp-8: 32px; --sp-10: 40px; --sp-12: 48px;

  /* Radius */
  --radius-sm: 4px; --radius-md: 8px; --radius-lg: 12px; --radius-xl: 20px;

  /* Transitions */
  --t-fast: 120ms ease;
  --t-base: 200ms ease;
}

* { box-sizing: border-box; }

html { font-size: 15px; }

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.5;
}

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

.mono { font-family: var(--font-mono); font-size: 0.875em; }

/* ---------------------------------------------------------------- */
/* Layout                                                            */
/* ---------------------------------------------------------------- */
.page-wrapper {
  max-width: 1100px;
  margin: 0 auto;
  padding: var(--sp-8) var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-8);
}

.section-title {
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--sp-2);
  margin: 0 0 var(--sp-4);
}

.topnav {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  padding: var(--sp-3) var(--sp-6);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
}

.topnav-brand { display: flex; align-items: center; gap: var(--sp-2); font-weight: 600; }
.brand-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--color-accent); display: inline-block; }

.topnav-links { list-style: none; display: flex; gap: var(--sp-5); margin: 0; padding: 0; }
.nav-link { color: var(--color-text-muted); }
.nav-link:hover, .nav-link.active { color: var(--color-text); }

.topnav-actions { display: flex; align-items: center; gap: var(--sp-3); }

@media (max-width: 800px) {
  .topnav-links { display: none; }
  .page-wrapper { padding: var(--sp-4); }
  .chart-grid, .form-grid { grid-template-columns: 1fr; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 500px) {
  .kpi-grid { grid-template-columns: 1fr; }
}

/* ---------------------------------------------------------------- */
/* Card                                                              */
/* ---------------------------------------------------------------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-4) var(--sp-5);
  border-bottom: 1px solid var(--color-border);
}
.card-title { font-weight: 600; }
.card-body { padding: var(--sp-5); }

/* ---------------------------------------------------------------- */
/* Alerts                                                            */
/* ---------------------------------------------------------------- */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--radius-md);
}
.alert-icon { font-weight: 600; }
.alert-close { margin-left: auto; background: none; border: none; color: inherit; cursor: pointer; opacity: 0.7; }
.alert-close:hover { opacity: 1; }
.alert-success { background: var(--color-success-bg); color: var(--color-success); }
.alert-error { background: var(--color-error-bg); color: var(--color-error); }
.alert-warning { background: var(--color-warning-bg); color: var(--color-warning); }
.alert-info { background: var(--color-info-bg); color: var(--color-info); }

/* ---------------------------------------------------------------- */
/* Badges                                                            */
/* ---------------------------------------------------------------- */
.badge {
  display: inline-block;
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--radius-xl);
  font-weight: 600;
}
.badge-success { background: var(--color-success-bg); color: var(--color-success); }
.badge-error { background: var(--color-error-bg); color: var(--color-error); }
.badge-warning { background: var(--color-warning-bg); color: var(--color-warning); }
.badge-info { background: var(--color-info-bg); color: var(--color-info); }
.badge-neutral { background: var(--color-surface-2); color: var(--color-text-muted); }
.badge-accent { background: var(--color-accent-dim); color: var(--color-accent); }

/* ---------------------------------------------------------------- */
/* KPI cards                                                         */
/* ---------------------------------------------------------------- */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--sp-4);
}
.kpi-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-5);
}
.kpi-label { color: var(--color-text-muted); font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; }
.kpi-value { font-size: 1.8rem; margin-top: var(--sp-2); }
.kpi-delta { margin-top: var(--sp-1); font-size: 0.85rem; }
.kpi-up { color: var(--color-success); }
.kpi-down { color: var(--color-error); }
.kpi-neutral { color: var(--color-text-muted); }

/* ---------------------------------------------------------------- */
/* Tables                                                             */
/* ---------------------------------------------------------------- */
.table-scroll { overflow-x: auto; }
.data-table { width: 100%; border-collapse: collapse; }
.data-table th {
  text-align: left;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  padding: var(--sp-3) var(--sp-4);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}
.data-table td {
  padding: var(--sp-3) var(--sp-4);
  border-bottom: 1px solid var(--color-border-soft);
  vertical-align: middle;
}
.data-table tbody tr:hover { background: var(--color-surface-2); }
.data-table tbody tr.row-error { background: var(--color-error-bg); }
.data-table tbody tr.row-warning { background: var(--color-warning-bg); }

/* ---------------------------------------------------------------- */
/* Forms                                                              */
/* ---------------------------------------------------------------- */
.form-group { display: flex; flex-direction: column; gap: var(--sp-1); margin-bottom: var(--sp-4); }
.form-label { font-size: 0.85rem; color: var(--color-text-muted); }
.form-input {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--sp-2) var(--sp-3);
  color: var(--color-text);
  font-family: inherit;
  font-size: 0.95rem;
}
.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-dim);
}
.form-input.input-error { border-color: var(--color-error); }
.form-hint { font-size: 0.8rem; color: var(--color-text-muted); }
.form-hint-error { color: var(--color-error); }
.form-select { appearance: auto; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 0 var(--sp-5); }

.check-group { display: flex; flex-direction: column; gap: var(--sp-2); }
.check-label { display: flex; align-items: center; gap: var(--sp-2); font-size: 0.9rem; }

/* Toggle switch */
.toggle { display: inline-flex; align-items: center; gap: var(--sp-2); cursor: pointer; }
.toggle input { display: none; }
.toggle-track {
  width: 36px; height: 20px; border-radius: 20px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  position: relative;
  transition: background var(--t-base);
}
.toggle-thumb {
  position: absolute; top: 2px; left: 2px;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--color-text-muted);
  transition: transform var(--t-base), background var(--t-base);
}
.toggle input:checked + .toggle-track { background: var(--color-accent-dim); border-color: var(--color-accent); }
.toggle input:checked + .toggle-track .toggle-thumb { transform: translateX(16px); background: var(--color-accent); }
.toggle-label { font-size: 0.9rem; }

/* ---------------------------------------------------------------- */
/* Buttons                                                            */
/* ---------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  padding: var(--sp-2) var(--sp-4);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--t-fast), border-color var(--t-fast), color var(--t-fast);
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--color-accent); color: #1a1408; }
.btn-primary:hover:not(:disabled) { background: var(--color-accent-hover); }
.btn-secondary { background: var(--color-surface-2); color: var(--color-text); border-color: var(--color-border); }
.btn-secondary:hover:not(:disabled) { background: var(--color-border); }
.btn-danger { background: var(--color-error); color: #2a0e0e; }
.btn-danger:hover:not(:disabled) { filter: brightness(1.1); }
.btn-ghost { background: transparent; color: var(--color-text-muted); }
.btn-ghost:hover:not(:disabled) { color: var(--color-text); }
.btn-outline { background: transparent; border-color: var(--color-border); color: var(--color-text); }
.btn-outline:hover:not(:disabled) { border-color: var(--color-accent); }
.btn-lg { padding: var(--sp-3) var(--sp-6); font-size: 1rem; }
.btn-sm { padding: var(--sp-1) var(--sp-3); font-size: 0.8rem; }
.btn-icon { padding: var(--sp-2); line-height: 1; }
.btn-row { display: flex; gap: var(--sp-2); flex-wrap: wrap; }

/* ---------------------------------------------------------------- */
/* Modals                                                             */
/* ---------------------------------------------------------------- */
.modal-backdrop {
  display: none;
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.6);
  align-items: center; justify-content: center;
  z-index: 100;
  padding: var(--sp-4);
}
.modal-backdrop.is-open { display: flex; }
.modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 640px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--sp-4) var(--sp-5);
  border-bottom: 1px solid var(--color-border);
}
.modal-header-danger { border-bottom-color: var(--color-error); }
.modal-title { font-weight: 600; }
.modal-close { background: none; border: none; color: var(--color-text-muted); cursor: pointer; font-size: 1.1rem; }
.modal-close:hover { color: var(--color-text); }
.modal-body { padding: var(--sp-5); overflow-y: auto; }
.modal-footer { display: flex; justify-content: flex-end; gap: var(--sp-2); padding: var(--sp-4) var(--sp-5); border-top: 1px solid var(--color-border); }

/* ---------------------------------------------------------------- */
/* Misc                                                               */
/* ---------------------------------------------------------------- */
.text-muted { color: var(--color-text-muted); }
.text-faint { color: var(--color-text-faint); }
.login-wrapper { max-width: 380px; margin: 10vh auto; padding: 0 var(--sp-4); }
.screenshot-thumb { max-width: 100%; border-radius: var(--radius-md); border: 1px solid var(--color-border); }