/* ---------- Design tokens ---------- */
/* Light is the base :root palette; dark overrides both under
   prefers-color-scheme (guarded so an explicit data-theme="light" wins)
   and under data-theme="dark" (so the toggle wins in both directions).
   See web/js/theme-init.js for how data-theme gets set before paint. */
:root {
  color-scheme: light;
  --bg: #f7f8fa;
  --surface: #ffffff;
  --surface-alt: #eef0f3;
  --border: #e1e4e9;
  --fg: #14181f;
  --fg-muted: #5c6370;
  --accent: #2f6feb;
  --accent-fg: #ffffff;
  --accent-geo: #7c5cff;
  --accent-perf: #0d9488;
  --success: #1a7f37;
  --success-bg: #dcf5e1;
  --warning: #9a6700;
  --warning-bg: #fdf1cd;
  --danger: #b3261e;
  --danger-bg: #fbe2e1;
  --shadow: 0 1px 2px rgba(20, 24, 31, 0.04), 0 2px 8px rgba(20, 24, 31, 0.06);
  --radius: 10px;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0e1013;
    --surface: #16191f;
    --surface-alt: #1d2129;
    --border: #2b303a;
    --fg: #e7e9ec;
    --fg-muted: #9aa1ac;
    --accent: #6ea2ff;
    --accent-fg: #0e1013;
    --accent-geo: #a78bfa;
    --accent-perf: #2dd4bf;
    --success: #3fb950;
    --success-bg: rgba(63, 185, 80, 0.14);
    --warning: #d29922;
    --warning-bg: rgba(210, 153, 34, 0.14);
    --danger: #f85149;
    --danger-bg: rgba(248, 81, 73, 0.14);
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 4px 12px rgba(0, 0, 0, 0.35);
  }
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0e1013;
  --surface: #16191f;
  --surface-alt: #1d2129;
  --border: #2b303a;
  --fg: #e7e9ec;
  --fg-muted: #9aa1ac;
  --accent: #6ea2ff;
  --accent-fg: #0e1013;
  --success: #3fb950;
  --success-bg: rgba(63, 185, 80, 0.14);
  --warning: #d29922;
  --warning-bg: rgba(210, 153, 34, 0.14);
  --danger: #f85149;
  --danger-bg: rgba(248, 81, 73, 0.14);
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.5), 0 4px 12px rgba(0, 0, 0, 0.35);
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 1.25rem 4rem;
}

h1 { font-size: 1.85rem; font-weight: 700; letter-spacing: -0.01em; margin: 2rem 0 0.75rem; }
h2 { font-size: 1.1rem; font-weight: 600; }
p { margin: 0 0 1rem; }
a { color: var(--accent); }
code, .mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

/* ---------- Header / footer ---------- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1.25rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--fg);
  text-decoration: none;
}

.site-header nav {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  flex-wrap: wrap;
}

nav a {
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
}

nav a:hover { color: var(--accent); }

.theme-toggle {
  width: 2rem;
  height: 2rem;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  line-height: 1;
  background: var(--surface-alt);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
}

.theme-toggle:hover { border-color: var(--accent); }

.site-footer {
  margin-top: 3rem;
  padding: 1.5rem 1.25rem;
  border-top: 1px solid var(--border);
  color: var(--fg-muted);
  font-size: 0.85rem;
  text-align: center;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-top: 0.85rem;
  padding: 0.35rem 0.9rem 0.35rem 0.35rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  box-shadow: var(--shadow);
  color: var(--fg-muted);
  font-size: 0.82rem;
  text-decoration: none;
  transition: border-color 0.15s;
}

.footer-brand:hover { border-color: var(--accent); }

.footer-brand-logo {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  display: block;
}

.footer-brand strong {
  color: var(--fg);
  font-weight: 600;
}

/* ---------- Buttons / inputs (shared) ---------- */
input[type="url"],
input[type="email"],
input[type="password"] {
  font: inherit;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--fg);
}

input[type="url"]:focus,
input[type="email"]:focus,
input[type="password"]:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

button {
  font: inherit;
  font-weight: 600;
  padding: 0.7rem 1.4rem;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-fg);
  cursor: pointer;
  transition: opacity 0.15s;
}

button:hover { opacity: 0.92; }
button:disabled { opacity: 0.55; cursor: default; }

/* ---------- Spinner ---------- */
.spinner {
  display: inline-block;
  width: 1em;
  height: 1em;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  vertical-align: -0.15em;
}

.spinner-lg {
  width: 2.25rem;
  height: 2.25rem;
  border-width: 3px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ---------- Homepage ---------- */
.hero-accent {
  width: 64px;
  height: 4px;
  border-radius: 2px;
  margin: 2rem 0 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-geo), var(--accent-perf));
}

.hero-accent + h1 { margin-top: 0.9rem; }

.lede {
  font-size: 1.05rem;
  color: var(--fg-muted);
  max-width: 40rem;
}

.scan-form {
  display: flex;
  gap: 0.6rem;
  max-width: 36rem;
  margin: 1.75rem 0;
}

.scan-form input { flex: 1; }
.scan-error { color: var(--danger); font-size: 0.9rem; }
.form-success { color: var(--success); font-size: 0.9rem; }

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin: 2.5rem 0;
}

.feature {
  --feature-color: var(--accent);
  padding: 1.1rem 1.2rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--feature-color);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.feature h3 { margin: 0 0 0.4rem; font-size: 0.95rem; color: var(--feature-color); }
.feature p { margin: 0; font-size: 0.88rem; color: var(--fg-muted); }

.feature--seo { --feature-color: var(--accent); }
.feature--geo { --feature-color: var(--accent-geo); }
.feature--perf { --feature-color: var(--accent-perf); }

.signup-cta {
  margin: 2.5rem 0;
  padding: 1.75rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent-geo);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.signup-cta h2 { margin: 0 0 0.6rem; }

.signup-cta ul {
  margin: 0 0 1.25rem;
  padding-left: 1.2rem;
  color: var(--fg-muted);
}

.signup-cta li { margin-bottom: 0.3rem; }

.button {
  display: inline-block;
  font-weight: 600;
  padding: 0.7rem 1.4rem;
  border-radius: 8px;
  background: var(--accent-geo);
  color: var(--accent-fg);
  text-decoration: none;
  transition: opacity 0.15s;
}

.button:hover { opacity: 0.9; }

/* ---------- Auth forms ---------- */
.auth-form {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  max-width: 24rem;
  margin: 1.75rem 0;
  padding: 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.auth-form button { align-self: flex-start; }

/* ---------- Report page ---------- */
.overall-score {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.85rem;
  margin: 2.5rem 0 2rem;
}

.score-gauge {
  --gauge-color: var(--accent);
  position: relative;
  width: 168px;
  height: 168px;
  border-radius: 50%;
  background: conic-gradient(var(--gauge-color) calc(var(--score) * 1%), var(--surface-alt) 0);
  display: flex;
  align-items: center;
  justify-content: center;
}

.score-gauge::before {
  content: "";
  position: absolute;
  inset: 13px;
  border-radius: 50%;
  background: var(--surface);
  box-shadow: inset 0 0 0 1px var(--border);
}

.score-gauge-value {
  position: relative;
  z-index: 1;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 2.5rem;
  font-weight: 700;
}

.score-gauge-value small {
  font-size: 1rem;
  font-weight: 500;
  color: var(--fg-muted);
}

.score-tier-good { --gauge-color: var(--success); }
.score-tier-warn { --gauge-color: var(--warning); }
.score-tier-bad { --gauge-color: var(--danger); }

.score-label { font-size: 1.05rem; font-weight: 600; color: var(--fg-muted); margin: 0; }

.sub-scores {
  display: flex;
  gap: 0.85rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.sub-score {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.15rem;
  min-width: 92px;
  padding: 0.85rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--gauge-color, var(--accent));
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.sub-score.score-tier-good { --gauge-color: var(--success); }
.sub-score.score-tier-warn { --gauge-color: var(--warning); }
.sub-score.score-tier-bad { --gauge-color: var(--danger); }

.sub-score-number {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 1.6rem;
  font-weight: 700;
}

.sub-score-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.score-category { margin: 2.25rem 0; }

.score-category h2 {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding-bottom: 0.5rem;
  margin-bottom: 0.9rem;
  border-bottom: 1px solid var(--border);
}

.score-category-total {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--fg-muted);
}

.check {
  --check-color: var(--fg-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--check-color);
  border-radius: 8px;
  padding: 0 0.9rem;
  margin-bottom: 0.5rem;
}

.check--pass { --check-color: var(--success); }
.check--warn { --check-color: var(--warning); }
.check--fail { --check-color: var(--danger); }

.check summary {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.7rem 0;
  font-weight: 500;
  cursor: pointer;
  list-style: none;
}

.check summary::-webkit-details-marker { display: none; }

.check summary::after {
  content: "›";
  margin-left: auto;
  color: var(--fg-muted);
  transform: rotate(90deg);
  transition: transform 0.15s;
}

.check[open] summary::after { transform: rotate(-90deg); }

.check-icon {
  color: var(--check-color);
  font-weight: 700;
  width: 1.1rem;
  text-align: center;
  flex-shrink: 0;
}

.check p {
  color: var(--fg-muted);
  font-size: 0.92rem;
  margin: 0 0 0.8rem 1.75rem;
}

.scan-meta, .scan-url { color: var(--fg-muted); }

.scan-meta code {
  background: var(--surface-alt);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.85em;
}

.cta {
  margin-top: 2.5rem;
  padding: 1.25rem 1.5rem;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-align: center;
}

.cta p { margin: 0; }
.cta a { font-weight: 600; }

.cta-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  margin-bottom: 0.7rem;
}

.cta-logo { border-radius: 8px; display: block; vertical-align:middle;}
.cta-brand-name { font-weight: 700; font-size: 1.05rem; color: var(--fg); }

.pending-state {
  text-align: center;
  padding: 3rem 0;
  color: var(--accent);
}

.pending-state p { color: var(--fg-muted); }
.pending-state .scan-url { margin-top: 1.1rem; }

/* ---------- Dashboard ---------- */
.dashboard-table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.75rem 0;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.dashboard-table th, .dashboard-table td {
  text-align: left;
  padding: 0.7rem 0.9rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.92rem;
}

.dashboard-table th {
  background: var(--surface-alt);
  color: var(--fg-muted);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.dashboard-table tbody tr:last-child td { border-bottom: 0; }
.dashboard-table tbody tr:hover { background: var(--surface-alt); }

.trend-up { color: var(--success); font-weight: 600; }
.trend-down { color: var(--danger); font-weight: 600; }

.dashboard-pagination {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-top: 0.5rem;
}

.dashboard-pagination button {
  background: var(--surface);
  color: var(--fg);
  border: 1px solid var(--border);
  font-weight: 500;
  padding: 0.5rem 1rem;
}

.dashboard-pagination button:hover:not(:disabled) { border-color: var(--accent); opacity: 1; }
.dashboard-pagination span { color: var(--fg-muted); font-size: 0.9rem; }