/* NBA Odds Predictor — editorial sports-data theme.
   Light, paper-based, hard rules, tabular numbers, one restrained accent. */

:root {
  --bg: #f5f3ec;
  --bg-alt: #efece2;
  --surface: #ffffff;
  --ink: #16181d;
  --ink-soft: #4a4e57;
  --ink-mute: #7a7f8a;
  --rule: #d9d4c6;
  --rule-strong: #2a2d33;
  --accent: #c8530a;
  --accent-ink: #8a3a06;
  --win: #1f6f3b;
  --loss: #9a2b2b;
  --highlight: #fff4e0;
  --maxw: 1360px;
  --header-h: 58px;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Mono", Menlo, Consolas, monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

/* Full-bleed shell: header spans the viewport, content is centered. */
.page-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header / masthead */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: var(--header-h);
  padding: 0 max(16px, calc((100vw - var(--maxw)) / 2 + 20px));
  background: var(--surface);
  border-bottom: 1px solid var(--rule-strong);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 26px;
  height: 26px;
  flex: 0 0 auto;
}

.brand-mark img { width: 26px; height: 26px; display: block; }

.brand-copy { display: flex; flex-direction: column; line-height: 1.1; }

.brand-copy strong {
  font-family: var(--serif);
  font-size: 1.02rem;
  font-weight: 600;
  letter-spacing: 0;
}

.brand-copy small {
  display: none;
  color: var(--ink-mute);
  font-size: 0.74rem;
}

@media (min-width: 720px) {
  .brand-copy small { display: block; }
}

.nav {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-wrap: wrap;
}

.nav a {
  padding: 8px 12px;
  color: var(--ink-soft);
 font-size: 0.9rem;
  font-weight: 500;
  border: 0;
  border-bottom: 2px solid transparent;
  transition: color 120ms ease, border-color 120ms ease;
}

.nav a:hover {
  color: var(--ink);
  background: transparent;
  border-color: var(--accent);
  text-decoration: none;
}

.content {
  flex: 1 0 auto;
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 28px 20px 56px;
  display: grid;
  gap: 28px;
}

/* Flash messages */
.flash-stack { display: grid; gap: 10px; }

.flash {
  padding: 12px 14px;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--ink-soft);
  background: var(--surface);
  font-size: 0.92rem;
}

.flash.success { border-left-color: var(--win); }
.flash.error { border-left-color: var(--loss); }
.flash.info { border-left-color: var(--accent); }

[hidden] { display: none !important; }

/* Typography */
h1, h2, h3 { margin: 0; font-family: var(--serif); font-weight: 600; color: var(--ink); }

h1 {
  font-size: clamp(2rem, 1.4rem + 2.6vw, 3.1rem);
  line-height: 1.04;
  letter-spacing: -0.01em;
}

h2 { font-size: 1.28rem; line-height: 1.2; }
h3 { font-size: 1.04rem; }

p { margin: 0 0 0.8em; }

.eyebrow {
  margin: 0 0 6px;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  font-weight: 700;
  font-family: var(--sans);
}

.lede {
  color: var(--ink-soft);
  font-size: 1.05rem;
  line-height: 1.6;
  max-width: 68ch;
}

.muted { color: var(--ink-mute); }

/* Page heading band */
.page-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  padding-bottom: 18px;
  border-bottom: 2px solid var(--rule-strong);
}

.page-heading h1 { margin-bottom: 8px; }

.page-actions, .home-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* Cards are flat surfaces with a hairline rule, not floating glass. */
.hero, .grid, .page-heading { display: grid; gap: 24px; }

.grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; }

.hero {
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.9fr);
  align-items: stretch;
}

.card, .hero-copy, .hero-panel {
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 6px;
}

.hero-copy h1 { margin-bottom: 12px; }

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--rule);
}

.section-header h2 { font-size: 1.12rem; }
.section-header p { margin: 0; color: var(--ink-mute); font-size: 0.88rem; }

/* Stats panel (home) */
.hero-panel {
  display: grid;
  gap: 0;
  align-content: start;
  background: var(--bg-alt);
}

.metric {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 4px;
  border-bottom: 1px solid var(--rule);
}

.metric:last-of-type { border-bottom: 0; }

.metric span { color: var(--ink-mute); font-size: 0.86rem; white-space: nowrap; }

.metric strong {
  font-size: 1.35rem;
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
  font-family: var(--serif);
  font-weight: 600;
}

.metric-accent strong { color: var(--accent-ink); }

.home-actions { margin-top: 14px; padding-top: 14px; border-top: 1px solid var(--rule); }

/* Lists */
.feature-list {
  margin: 0;
  padding-left: 18px;
  line-height: 1.65;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.feature-list li::marker { color: var(--accent); }

/* Buttons: solid, flat, no gradients. */
.button-primary, .button-secondary, .button-danger {
  appearance: none;
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  padding: 9px 16px;
  font: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease, border-color 120ms ease;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1.2;
}

.button-primary {
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
}
.button-primary:hover { background: var(--accent-ink); border-color: var(--accent-ink); }

.button-secondary {
  color: var(--ink);
  background: var(--surface);
}
.button-secondary:hover { background: var(--bg-alt); }

.button-danger {
  color: #fff;
  background: var(--loss);
  border-color: var(--loss);
}
.button-danger:hover { background: #6e1f1f; border-color: #6e1f1f; }

.button-primary:disabled, .button-secondary:disabled, .button-danger:disabled {
  opacity: 0.55;
  cursor: wait;
}

/* Notices / callouts */
.callout {
  margin: 0;
  padding: 14px 16px;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  background: var(--highlight);
  line-height: 1.65;
  font-size: 0.95rem;
}

.note-card, .info-card { background: var(--bg-alt); }

.info-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.info-row span { color: var(--ink-mute); font-size: 0.88rem; }
.info-row strong { font-variant-numeric: tabular-nums; }

/* Featured team / summary block */
.featured-team {
  display: grid;
  gap: 4px;
  padding: 14px 16px;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--accent);
  background: var(--highlight);
}
.featured-team strong { font-size: 1.08rem; }
.featured-team span { color: var(--ink-soft); font-size: 0.9rem; }

/* Tables: dense, tabular, scannable. */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--rule);
  border-radius: 4px;
}

table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }

th, td {
  padding: 9px 12px;
  text-align: left;
  border-bottom: 1px solid var(--rule);
  vertical-align: top;
}

thead th {
  background: var(--bg-alt);
  color: var(--ink-soft);
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-bottom: 1px solid var(--rule-strong);
  position: sticky;
  top: 0;
}

tbody tr:last-child td { border-bottom: 0; }
tbody tr:nth-child(even) { background: rgba(0,0,0,0.018); }

td, .metric strong, .info-row strong { font-variant-numeric: tabular-nums; }

.leaderboard td:nth-child(1), .leaderboard th:nth-child(1) { width: 56px; }
.leaderboard td:nth-child(3), .leaderboard th:nth-child(3) { text-align: right; }

/* Forms */
.form { display: grid; gap: 14px; margin-bottom: 14px; }

.form label { display: grid; gap: 5px; }

.form span { color: var(--ink-mute); font-size: 0.84rem; font-weight: 500; }

.form input, .form select, .form textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
}

.form input:focus, .form select:focus, .form textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

.form textarea {
  resize: vertical;
  min-height: 132px;
  line-height: 1.55;
}

.form button { justify-self: start; }

.form-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 16px;
}

/* Widen single-column forms into a 2-col field grid on roomy screens. */
@media (min-width: 760px) {
  .form {
    grid-template-columns: 1fr 1fr;
    align-items: end;
  }
  .form > button,
  .form > .notice,
  .form > .download-row,
  .form > .inline-loader { grid-column: 1 / -1; }
  .form .form-columns { grid-column: 1 / -1; }
}

.download-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 12px;
}

.notice {
  padding: 11px 14px;
  border: 1px solid var(--rule);
  margin-top: 12px;
  font-size: 0.9rem;
}
.notice.success { border-left: 3px solid var(--win); background: #f1f7f1; }
.notice.error { border-left: 3px solid var(--loss); background: #fbf2f2; }
.notice.info { border-left: 3px solid var(--accent); background: var(--surface-soft); }

/* Math / inner-workings */
.math-card { line-height: 1.7; }
.math-card p { color: var(--ink-soft); }

.math-block {
  overflow-x: auto;
  padding: 14px 16px;
  border: 1px solid var(--rule);
  border-radius: 4px;
  background: var(--bg-alt);
  margin: 14px 0;
}

.math-block math { display: block; width: 100%; font-size: 1.02rem; }

.math-card code, p code, td code {
  font-family: var(--mono);
  font-size: 0.86em;
  background: var(--bg-alt);
  padding: 1px 5px;
  border-radius: 3px;
}

/* Predictor model cards */
.predictor-grid, .scrape-grid { align-items: start; }

.predictor-summary { margin-bottom: 14px; }

.predictor-model-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
  margin-bottom: 14px;
}

.predictor-model-card {
  display: grid;
  gap: 14px;
  padding: 18px;
  border: 1px solid var(--rule);
  border-top: 3px solid var(--ink-soft);
  border-radius: 4px;
  background: var(--surface);
}

.predictor-model-card-logistic { border-top-color: var(--accent); }
.predictor-model-card-rf { border-top-color: #2a5db0; }

.predictor-model-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }

.predictor-model-label { font-size: 1rem; font-weight: 700; font-family: var(--serif); }

.predictor-model-badge {
  padding: 3px 8px;
  border: 1px solid var(--rule);
  border-radius: 3px;
  color: var(--ink-mute);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.predictor-model-body { display: grid; gap: 8px; }

.predictor-model-kicker { margin: 0; color: var(--ink-mute); font-size: 0.82rem; }

.predictor-model-winner {
  font-size: clamp(1.6rem, 1.2rem + 1.5vw, 2rem);
  line-height: 1.05;
  font-family: var(--serif);
  word-break: break-word;
}

.predictor-model-stats { display: grid; gap: 8px; }
.predictor-model-stat { display: flex; align-items: baseline; justify-content: space-between; gap: 10px; }
.predictor-model-stat span { color: var(--ink-mute); font-size: 0.85rem; }
.predictor-model-stat strong { font-size: 1.4rem; font-variant-numeric: tabular-nums; }

.query-field {
  grid-column: 1 / -1;
}

.query-related {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
}

.query-related h3 {
  margin-bottom: 10px;
}

/* Loading bar — thin, top of viewport. */
.loading-bar {
  position: fixed;
  inset: 0 auto auto 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  opacity: 0;
  z-index: 40;
}

.loading-bar.is-visible {
  opacity: 1;
  animation: loading-slide 1.1s linear infinite;
}

.inline-loader { display: none; align-items: center; gap: 6px; margin: 12px 0 0; }
.inline-loader span {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  animation: pulse 0.9s ease-in-out infinite;
}
.inline-loader span:nth-child(2) { animation-delay: 0.15s; background: var(--ink-soft); }
.inline-loader span:nth-child(3) { animation-delay: 0.3s; background: var(--ink-mute); }
body.is-loading .inline-loader { display: inline-flex; }

/* Footer rule at the bottom for a finished editorial feel. */
.content::after {
  content: "";
  display: block;
  height: 0;
}

/* Wider forms: stop stacking everything in a narrow middle column. */

/* Leaderboard: fill the width, give team room, add a rating bar column. */
.leaderboard { width: 100%; }
.leaderboard th, .leaderboard td { padding: 11px 16px; }
.leaderboard td:nth-child(1), .leaderboard th:nth-child(1) { width: 72px; text-align: center; font-variant-numeric: tabular-nums; color: var(--ink-mute); font-weight: 700; }
.leaderboard td:nth-child(2), .leaderboard th:nth-child(2) { width: auto; }
.leaderboard td:nth-child(3), .leaderboard th:nth-child(3) { width: 46%; }
.leaderboard .team-cell { font-weight: 600; font-size: 0.96rem; letter-spacing: 0.01em; }
.leaderboard .rating-cell {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
}
.leaderboard .rating-value {
  font-variant-numeric: tabular-nums;
  font-weight: 600;
  min-width: 52px;
  text-align: right;
}
.leaderboard .rating-bar {
  flex: 1 1 auto;
  max-width: 320px;
  height: 8px;
  border-radius: 999px;
  background: var(--rule);
  overflow: hidden;
}
.leaderboard .rating-bar-fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-ink));
}
/* context table on the predictor page keeps tabular alignment */
table.context .rating-cell, table.context .rating-bar { display: none; }

/* Home hero + stats panel: use the full row. */
.hero-home { grid-template-columns: minmax(0, 1.5fr) minmax(320px, 1fr); }
.stats-panel { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }
.stats-panel .metric { padding: 14px 8px; gap: 10px; }
.stats-panel .metric span { font-size: 0.82rem; white-space: nowrap; }
.stats-panel .metric strong { font-size: 1.18rem; line-height: 1.1; }
.stats-panel .home-actions { grid-column: 1 / -1; }

/* Pipeline and method cards: breathe across the row. */
.pipeline-grid, .method-grid { gap: 22px; }
.pipeline-card, .math-card { padding: 24px; }

/* Predictor context table: give home/away columns equal width. */
table.context th, table.context td { text-align: left; }
table.context td:nth-child(1), table.context th:nth-child(1) { width: 140px; }
table.context td:nth-child(2), table.context th:nth-child(2),
table.context td:nth-child(3), table.context th:nth-child(3) { width: 120px; text-align: right; font-variant-numeric: tabular-nums; }

/* Responsive */
@media (max-width: 980px) {
  .hero { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .grid { grid-template-columns: 1fr; }
  .section-header { flex-direction: column; align-items: flex-start; }
  .form-columns { grid-template-columns: 1fr; }
  .hero-home { grid-template-columns: 1fr; }
  .stats-panel { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  :root { --header-h: 52px; }
  .topbar {
    flex-wrap: wrap;
    height: auto;
    padding: 8px 14px;
    gap: 8px;
  }
  .nav { width: 100%; overflow-x: auto; flex-wrap: nowrap; padding-bottom: 2px; }
  .nav a { white-space: nowrap; padding: 6px 10px; }
  .content { padding: 18px 14px 36px; gap: 22px; }
  .card, .hero-copy, .hero-panel { padding: 16px; }
  .form-columns { grid-template-columns: 1fr; gap: 14px; }
  h1 { font-size: 1.9rem; }
  .stats-panel { grid-template-columns: 1fr; }
}

/* Dark-mode theme overrides. The base variables above define the light
   theme; this block swaps them for a deep-ink dark palette. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #14181f;
    --bg-alt: #1c212b;
    --surface: #1e242f;
    --ink: #e8e6e0;
    --ink-soft: #b0b3bd;
    --ink-mute: #828693;
    --rule: #2e3440;
    --rule-strong: #4a5060;
    --accent: #e8762d;
    --accent-ink: #ffb24d;
    --win: #4eaa6a;
    --loss: #c75454;
    --highlight: #2a2418;
  }
}

/* Manual dark theme (toggled via button). */
:root[data-theme="dark"] {
  --bg: #14181f;
  --bg-alt: #1c212b;
  --surface: #1e242f;
  --ink: #e8e6e0;
  --ink-soft: #b0b3bd;
  --ink-mute: #828693;
  --rule: #2e3440;
  --rule-strong: #4a5060;
  --accent: #e8762d;
  --accent-ink: #ffb24d;
  --win: #4eaa6a;
  --loss: #c75454;
  --highlight: #2a2418;
}

/* Manual light theme overrides system dark preference. */
:root[data-theme="light"] {
  --bg: #f5f3ec;
  --bg-alt: #efece2;
  --surface: #ffffff;
  --ink: #16181d;
  --ink-soft: #4a4e57;
  --ink-mute: #7a7f8a;
  --rule: #d9d4c6;
  --rule-strong: #2a2d33;
  --accent: #c8530a;
  --accent-ink: #8a3a06;
  --win: #1f6f3b;
  --loss: #9a2b2b;
  --highlight: #fff4e0;
}

@media (max-width: 380px) {
  .metric { flex-direction: column; align-items: flex-start; gap: 2px; }
}

@keyframes loading-slide {
  0% { transform: translateX(-30%) scaleX(0.35); }
  50% { transform: translateX(35%) scaleX(0.9); }
  100% { transform: translateX(130%) scaleX(0.35); }
}

@keyframes pulse {
  0%, 100% { transform: translateY(0); opacity: 0.5; }
  50% { transform: translateY(-3px); opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}

/* Theme toggle button */
.theme-toggle {
  appearance: none;
  background: transparent;
  border: 1px solid var(--rule-strong);
  border-radius: 4px;
  color: var(--ink-soft);
  cursor: pointer;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 10px;
  line-height: 1.2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: background 120ms ease, color 120ms ease, border-color 120ms ease;
}
.theme-toggle:hover { color: var(--ink); border-color: var(--accent); }
.theme-toggle .theme-toggle-icon { width: 14px; height: 14px; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }
:root[data-theme="light"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: block; }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
}
@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) .theme-toggle .icon-sun { display: none; }
  :root:not([data-theme="dark"]) .theme-toggle .icon-moon { display: block; }
}
/* Dark-mode adjustments for elements that use rgba/white in light mode */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) tbody tr:nth-child(even) { background: rgba(255,255,255,0.03); }
}
:root[data-theme="dark"] tbody tr:nth-child(even) { background: rgba(255,255,255,0.03); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .form input, :root:not([data-theme="light"]) .form select, :root:not([data-theme="light"]) .form textarea { background: var(--bg-alt); }
}
:root[data-theme="dark"] .form input, :root[data-theme="dark"] .form select, :root[data-theme="dark"] .form textarea { background: var(--bg-alt); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .notice.success { background: #16241a; }
}
:root[data-theme="dark"] .notice.success { background: #16241a; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .notice.error { background: #241818; }
}
:root[data-theme="dark"] .notice.error { background: #241818; }