/* ---- Design tokens ---- */
:root {
  color-scheme: light;
  --bg: #f6f8fb;
  --bg-elevated: #ffffff;
  --surface: #ffffff;
  --surface-hover: #f9fafc;
  --border: #e3e8ee;
  --border-strong: #d3d9e3;
  --text: #1a1f36;
  --text-muted: #697386;
  --text-faint: #8792a2;
  --accent: #635bff;
  --accent-hover: #5147f5;
  --accent-soft: #f0efff;
  --accent-text: #ffffff;
  --success: #0a8a5f;
  --success-soft: #e5f7ef;
  --warning: #a6580b;
  --warning-soft: #fff2e0;
  --danger: #cd3d3d;
  --shadow-sm: 0 1px 2px rgba(20, 24, 40, 0.06);
  --shadow-md: 0 2px 8px rgba(20, 24, 40, 0.08), 0 1px 2px rgba(20, 24, 40, 0.04);
  --shadow-lg: 0 8px 24px rgba(20, 24, 40, 0.12);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, Helvetica, Arial, sans-serif;
  --font-mono: "SF Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #0a0e17;
  --bg-elevated: #0f1420;
  --surface: #131826;
  --surface-hover: #171d2d;
  --border: #232a3b;
  --border-strong: #2e3650;
  --text: #e9ecf5;
  --text-muted: #9aa4b8;
  --text-faint: #6b7488;
  --accent: #8b7fff;
  --accent-hover: #a099ff;
  --accent-soft: #211d45;
  --accent-text: #ffffff;
  --success: #35c98f;
  --success-soft: #123328;
  --warning: #e0a13d;
  --warning-soft: #3a2a12;
  --danger: #ef6a6a;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 2px 10px rgba(0, 0, 0, 0.4), 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --bg: #0a0e17;
    --bg-elevated: #0f1420;
    --surface: #131826;
    --surface-hover: #171d2d;
    --border: #232a3b;
    --border-strong: #2e3650;
    --text: #e9ecf5;
    --text-muted: #9aa4b8;
    --text-faint: #6b7488;
    --accent: #8b7fff;
    --accent-hover: #a099ff;
    --accent-soft: #211d45;
    --accent-text: #ffffff;
    --success: #35c98f;
    --success-soft: #123328;
    --warning: #e0a13d;
    --warning-soft: #3a2a12;
    --danger: #ef6a6a;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 2px 10px rgba(0, 0, 0, 0.4), 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.5);
  }
}

* { box-sizing: border-box; }

html, body {
  height: 100%;
}

body {
  font-family: var(--font-sans);
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

code {
  font-family: var(--font-mono);
  background: var(--accent-soft);
  color: var(--accent);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  font-size: 0.9em;
}

/* ---- Top bar ---- */
header.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 1.75rem;
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
}

.brand-mark {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #ff7ab8);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
}

.page-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.page-nav-link {
  color: var(--text-muted);
  font-size: 0.87rem;
  font-weight: 500;
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  transition: background 0.15s ease, color 0.15s ease;
}

.page-nav-link:hover { color: var(--text); background: var(--surface-hover); }
.page-nav-link.active { color: var(--text); background: var(--accent-soft); }

.topbar-right {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.user-chip {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.user-chip .logout-link {
  color: var(--text-faint);
  border-left: 1px solid var(--border);
  padding-left: 0.6rem;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.icon-btn:hover {
  background: var(--surface-hover);
  color: var(--text);
  border-color: var(--border-strong);
}

.icon-btn svg { width: 16px; height: 16px; }
.icon-btn .icon-moon { display: none; }
:root[data-theme="dark"] .icon-btn .icon-sun { display: none; }
:root[data-theme="dark"] .icon-btn .icon-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-btn .icon-sun { display: none; }
  :root:not([data-theme="light"]) .icon-btn .icon-moon { display: block; }
}

/* ---- Page shell ---- */
main.page {
  max-width: 1240px;
  margin: 0 auto;
  padding: 1.75rem;
}

.page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: 1.25rem;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-head h1 {
  font-size: 1.4rem;
  margin: 0 0 0.2rem;
  letter-spacing: -0.01em;
}

.page-head .subtitle {
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* ---- Stat cards ---- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.9rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 0.95rem 1.1rem;
  box-shadow: var(--shadow-sm);
}

.stat-card .label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-faint);
  margin-bottom: 0.35rem;
}

.stat-card .value {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.stat-card .value.accent { color: var(--accent); }
.stat-card .value.success { color: var(--success); }

/* ---- Tabs ---- */
.tabs {
  display: inline-flex;
  gap: 0.2rem;
  padding: 0.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 1rem;
}

.tab-btn {
  background: transparent;
  color: var(--text-muted);
  border: none;
  padding: 0.45rem 1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.87rem;
  font-weight: 500;
  transition: background 0.15s ease, color 0.15s ease;
}

.tab-btn:hover { color: var(--text); }
.tab-btn.active { background: var(--accent); color: var(--accent-text); }

/* ---- Filter card ---- */
.filters {
  display: flex;
  gap: 1.1rem;
  align-items: flex-end;
  padding: 1rem 1.15rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.field label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-faint);
}

.field input {
  width: 5.5rem;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.4rem 0.55rem;
  border-radius: var(--radius-sm);
  font-size: 0.87rem;
  font-family: inherit;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  background: var(--accent);
  color: var(--accent-text);
  border: none;
  padding: 0.5rem 1.1rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 0.87rem;
  font-weight: 500;
  text-decoration: none;
  transition: background 0.15s ease, transform 0.05s ease;
  box-shadow: var(--shadow-sm);
}

.btn:hover { background: var(--accent-hover); color: var(--accent-text); }
.btn:active { transform: translateY(1px); }

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: none;
}

.btn-secondary:hover { background: var(--surface-hover); color: var(--text); border-color: var(--border-strong); }

.filters-meta {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--text-faint);
  font-size: 0.8rem;
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 0 3px var(--success-soft);
}

.dot.dot-danger {
  background: var(--danger);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--danger) 15%, transparent);
}

.btn.is-busy { opacity: 0.7; cursor: default; }
.btn.is-busy svg { animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---- Table card ---- */
.table-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

table { width: 100%; border-collapse: collapse; }

th, td {
  text-align: left;
  padding: 0.7rem 1rem;
  border-bottom: 1px solid var(--border);
  white-space: nowrap;
}

th {
  color: var(--text-faint);
  font-weight: 600;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--bg-elevated);
}

.ticker-type-select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.25rem 0.4rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-family: inherit;
}

tbody tr { transition: background 0.1s ease; }
tbody tr:hover { background: var(--surface-hover); }
tbody tr:last-child td { border-bottom: none; }

td.ticker { font-weight: 600; }
td.num { font-variant-numeric: tabular-nums; }
td.muted { color: var(--text-muted); }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.pill-yield { background: var(--success-soft); color: var(--success); }
.pill-earnings { background: var(--warning-soft); color: var(--warning); }
.pill-score-high { background: var(--success-soft); color: var(--success); cursor: help; }
.pill-score-mid { background: var(--warning-soft); color: var(--warning); cursor: help; }
.pill-score-low { background: color-mix(in srgb, var(--danger) 12%, transparent); color: var(--danger); cursor: help; }

.preset-row {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.9rem;
  flex-wrap: wrap;
}

.preset-row .field-label {
  font-size: 0.78rem;
  color: var(--text-faint);
  margin-right: 0.2rem;
}

.delta-value { font-variant-numeric: tabular-nums; }
.delta-estimated::after {
  content: "~";
  color: var(--text-faint);
  margin-left: 0.15rem;
  font-weight: 700;
  cursor: help;
}

.empty-state, .loading-state {
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
}

.empty-state .big { font-size: 1.6rem; margin-bottom: 0.5rem; }

.legend {
  margin-top: 0.9rem;
  font-size: 0.78rem;
  color: var(--text-faint);
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.legend span { display: inline-flex; align-items: center; gap: 0.35rem; }

/* ---- Settings / History pages ---- */
.settings-section {
  margin-bottom: 2rem;
}

.settings-section h2 {
  font-size: 1.05rem;
  margin: 0 0 0.25rem;
  letter-spacing: -0.01em;
}

.section-hint {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin: 0 0 0.9rem;
}

.inline-form {
  display: flex;
  gap: 1rem;
  align-items: flex-end;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.inline-form input,
.inline-form select {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.4rem 0.55rem;
  border-radius: var(--radius-sm);
  font-size: 0.87rem;
  font-family: inherit;
}

.btn-sm { padding: 0.3rem 0.7rem; font-size: 0.8rem; }

.checkbox-field {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  margin-bottom: 0.6rem;
}

.prefs-form { max-width: 900px; }

.toast {
  padding: 0.7rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  font-size: 0.87rem;
  background: var(--success-soft);
  color: var(--success);
}

.toast.toast-error { background: color-mix(in srgb, var(--danger) 12%, transparent); color: var(--danger); }

.history-controls {
  display: flex;
  gap: 1rem;
  align-items: flex-end;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}

/* ---- Auth pages ---- */
.auth-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
}

.auth-card {
  max-width: 400px;
  width: 100%;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 2.25rem 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.auth-card .brand {
  justify-content: center;
  margin-bottom: 1.25rem;
}

.auth-card h1 {
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
}

.auth-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin: 0 0 1.5rem;
}

.auth-card .btn { width: 100%; padding: 0.65rem 1.2rem; }

.auth-card .btn-google {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border-strong);
  box-shadow: var(--shadow-sm);
}
.auth-card .btn-google:hover { background: var(--surface-hover); }

@media (max-width: 640px) {
  main.page { padding: 1rem; }
  .filters { padding: 0.85rem; }
  header.topbar { padding: 0.7rem 1rem; }
}