:root {
  --color-surface: #eeecec;
  --color-surface-alt: #e6e3e3;
  --color-surface-deep: #dbd7d7;
  --color-ink: #4d3d3e;
  --color-ink-soft: #766062;
  --color-ink-muted: #8c7375;
  --color-line: #d1cccd;
  --color-primary: #c53a46;
  --color-primary-ink: #ffffff;
  --color-primary-soft: #e8d3d5;
  --color-accent: #8f6f0a;
  --color-accent-ink: #ffffff;
  --color-highlight: #ddd6c3;
  --color-focus: #836402;
  --color-contrast-surface: #241617;
  --color-contrast-ink: #e7e4e4;
  --color-contrast-line: #4f4344;
  --color-contrast-accent: #efb910;
  --overlay-scrim: linear-gradient(180deg, rgba(36, 22, 23, 0.35) 0%, rgba(36, 22, 23, 0.72) 55%, rgba(36, 22, 23, 0.92) 100%);
  --font-heading: "Songti SC", STSong, "Source Han Serif SC", SimSun, serif;
  --font-body: "Songti SC", STSong, "Source Han Serif SC", SimSun, serif;
  --font-mono: ui-monospace, Menlo, Consolas, monospace;
  --text-xs: 12.9px;
  --text-sm: 15.5px;
  --text-base: 17px;
  --text-lg: 20.4px;
  --text-xl: 24.5px;
  --text-2xl: 29.4px;
  --text-3xl: 35.3px;
  --text-4xl: 42.3px;
  --text-display: clamp(34px, 6.6vw, 84px);
  --text-figure: clamp(28px, 4.7vw, 60px);
  --weight-heading: 555;
  --weight-body: 400;
  --leading-body: 1.88;
  --leading-heading: 1.15;
  --tracking-heading: 0.032em;
  --radius-sm: 0px;
  --radius-md: 0px;
  --radius-lg: 1px;
  --radius-pill: 1px;
  --border-thin: 1px;
  --border-thick: 1px;
  --shadow-1: none;
  --shadow-2: none;
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-6: 48px;
  --space-8: 64px;
  --container: 1080px;
  --measure: 71ch;
  --gutter: 32px;
  --section-y: 97px;
  --section-y-lg: 136px;
}

/* ================= reset ================= */
*,
*::before,
*::after { box-sizing: border-box; }

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

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd, ul, ol { margin: 0; }

ul, ol { padding: 0; }

ul[class], ol[class] { list-style: none; }

img, svg, video { display: block; max-width: 100%; }

img { height: auto; }

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

a { color: inherit; text-decoration: none; }

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

/* ================= base ================= */
body {
  background-color: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--weight-body);
  line-height: var(--leading-body);
  letter-spacing: 0.012em;
  padding-bottom: 58px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-ink);
}

h1 { font-size: var(--text-4xl); }
h2 { font-size: var(--text-3xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }

strong, b { font-weight: 600; }

code, kbd, samp, .mono {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}

::selection {
  background-color: var(--color-primary-soft);
  color: var(--color-ink);
}

/* ================= layout ================= */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.section { padding-block: var(--section-y); }
.section-tight { padding-block: var(--space-6); }
.section-lg { padding-block: var(--section-y-lg); }
.section-alt { background-color: var(--color-surface-alt); }

.section-deep {
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.section-deep h1,
.section-deep h2,
.section-deep h3,
.section-deep h4 { color: var(--color-contrast-ink); }

.section-deep a { color: var(--color-contrast-ink); }
.section-deep .section-kicker { color: var(--color-contrast-accent); }
.section-deep .rule-double { border-color: var(--color-contrast-line); }
.section-deep .rule-double::after { border-color: var(--color-contrast-line); }

.grid { display: grid; gap: var(--space-4); }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid-aside { grid-template-columns: minmax(0, 2fr) minmax(0, 1fr); gap: var(--space-6); }

/* ================= section headings ================= */
.section-head {
  max-width: var(--measure);
  margin-inline: auto;
  margin-bottom: var(--space-6);
  text-align: center;
}

.section-kicker {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  letter-spacing: 0.34em;
  text-indent: 0.34em;
  margin-bottom: var(--space-2);
}

.section-kicker::before,
.section-kicker::after {
  content: "";
  width: 34px;
  height: 1px;
  background-color: currentColor;
  flex: none;
}

.section-title { font-size: var(--text-3xl); }

.section-sub {
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.section-deep .section-sub { color: var(--color-contrast-ink); opacity: 0.78; }

.title-rule {
  display: block;
  width: 76px;
  height: 7px;
  margin: var(--space-2) auto 0;
  border-bottom: var(--border-thin) solid var(--color-primary);
  background-image: repeating-linear-gradient(90deg, var(--color-primary) 0 1px, transparent 1px 6px);
}

/* ================= decorative rules ================= */
.rule-double {
  position: relative;
  border: 0;
  border-top: var(--border-thin) solid var(--color-line);
  height: 0;
  margin-block: var(--space-6);
}

.rule-double::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 3px;
  border-top: var(--border-thin) solid var(--color-line);
}

.rule-meander {
  height: 7px;
  border: 0;
  border-top: var(--border-thin) solid var(--color-primary);
  background-image: repeating-linear-gradient(90deg, var(--color-line) 0 1px, transparent 1px 14px);
  margin-block: var(--space-6);
}

/* ================= frame / card ================= */
.frame {
  position: relative;
  border: var(--border-thin) solid var(--color-line);
  background-color: var(--color-surface);
  padding: var(--space-3);
}

.frame::after {
  content: "";
  position: absolute;
  inset: 5px;
  border: var(--border-thin) solid var(--color-line);
  pointer-events: none;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  padding: var(--space-3);
  border: var(--border-thin) solid var(--color-line);
  background-color: var(--color-surface);
  transition: background-color 0.16s ease, border-color 0.16s ease;
}

.card::after {
  content: "";
  position: absolute;
  inset: 4px;
  border: var(--border-thin) solid var(--color-primary);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.16s ease;
}

.card:hover,
.card:focus-within { background-color: var(--color-surface-deep); }

.card:hover::after,
.card:focus-within::after { opacity: 1; }

.card-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
}

.card-index {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  color: var(--color-primary);
  flex: none;
}

.card-title { font-size: var(--text-lg); }

.card-title a { transition: color 0.16s ease; }
.card-title a:hover { color: var(--color-primary); }

.card-text {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  font-size: var(--text-xs);
  color: var(--color-ink-muted);
  letter-spacing: 0.08em;
}

/* ================= tags ================= */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 2px 10px;
  border: var(--border-thin) solid var(--color-line);
  background-color: var(--color-surface);
  color: var(--color-ink-muted);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  transition: background-color 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}

.tag[aria-pressed="true"],
.tag[data-active="true"] {
  background-color: var(--color-primary-soft);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ================= buttons ================= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  padding: 12px 26px;
  border: var(--border-thin) solid transparent;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.14em;
  text-align: center;
  transition: background-color 0.16s ease, border-color 0.16s ease, color 0.16s ease;
}

.btn-primary {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-primary-ink);
}

.btn-primary:hover {
  background-color: color-mix(in srgb, var(--color-primary) 84%, var(--color-contrast-surface));
  border-color: color-mix(in srgb, var(--color-primary) 84%, var(--color-contrast-surface));
}

.btn-accent {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-accent-ink);
}

.btn-accent:hover {
  background-color: color-mix(in srgb, var(--color-accent) 84%, var(--color-contrast-surface));
  border-color: color-mix(in srgb, var(--color-accent) 84%, var(--color-contrast-surface));
}

.btn-outline {
  position: relative;
  background-color: transparent;
  border-color: var(--color-ink);
  color: var(--color-ink);
}

.btn-outline::after {
  content: "";
  position: absolute;
  inset: 3px;
  border: var(--border-thin) solid transparent;
  pointer-events: none;
  transition: border-color 0.16s ease;
}

.btn-outline:hover { background-color: var(--color-surface-deep); }
.btn-outline:hover::after { border-color: var(--color-primary); }

.section-deep .btn-outline {
  border-color: var(--color-contrast-line);
  color: var(--color-contrast-ink);
}

.section-deep .btn-outline:hover { background-color: var(--color-contrast-line); }

/* ================= breadcrumb ================= */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  color: var(--color-ink-muted);
}

.breadcrumb li { display: inline-flex; align-items: center; }

.breadcrumb li + li::before {
  content: "／";
  margin-right: var(--space-1);
  color: var(--color-line);
}

.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb [aria-current="page"] { color: var(--color-ink); }

/* ================= prose ================= */
.prose { max-width: var(--measure); }

.prose p + p { margin-top: var(--space-2); }

.prose h2 {
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
  font-size: var(--text-2xl);
}

.prose h3 {
  margin-top: var(--space-4);
  margin-bottom: var(--space-1);
  font-size: var(--text-lg);
}

.prose ul, .prose ol { margin-top: var(--space-2); }

.prose ul li,
.prose ol li {
  position: relative;
  padding-left: var(--space-3);
  margin-top: var(--space-1);
}

.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.86em;
  width: 12px;
  height: 1px;
  background-color: var(--color-primary);
}

.prose ol { counter-reset: prose-ol; }

.prose ol li::before {
  counter-increment: prose-ol;
  content: counter(prose-ol);
  position: absolute;
  left: 0;
  top: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-primary);
}

.lede {
  max-width: var(--measure);
  font-size: var(--text-lg);
  color: var(--color-ink-soft);
}

.note {
  border-left: 3px double var(--color-primary);
  background-color: var(--color-surface-deep);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
}

.figure-value {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-figure);
  font-weight: var(--weight-heading);
  line-height: 1;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  color: var(--color-primary);
}

.section-deep .figure-value { color: var(--color-contrast-accent); }

.display {
  font-family: var(--font-heading);
  font-size: var(--text-display);
  font-weight: var(--weight-heading);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
}

/* ================= media ================= */
.media {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  background-color: var(--color-surface-deep);
}

.media > img,
.media > svg { width: 100%; height: 100%; object-fit: cover; }

.media-16x9 { aspect-ratio: 16 / 9; }
.media-4x3 { aspect-ratio: 4 / 3; }
.media-1x1 { aspect-ratio: 1 / 1; }
.media-21x9 { aspect-ratio: 21 / 9; }

.media-scrim {
  position: absolute;
  inset: 0;
  background: var(--overlay-scrim);
  pointer-events: none;
}

.media-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: var(--space-3);
  color: var(--color-contrast-ink);
  font-size: var(--text-sm);
}

.media-caption--plain {
  position: static;
  padding: var(--space-2) 0 0;
  color: var(--color-ink-muted);
  font-size: var(--text-xs);
  letter-spacing: 0.06em;
}

/* ================= skip link ================= */
.skip-link {
  position: fixed;
  left: var(--space-2);
  top: -80px;
  z-index: 200;
  padding: var(--space-1) var(--space-2);
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
  font-size: var(--text-sm);
  letter-spacing: 0.1em;
  transition: top 0.16s ease;
}

.skip-link:focus { top: var(--space-2); }

/* ================= header ================= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background-color: var(--color-surface);
  border-bottom: var(--border-thin) solid var(--color-line);
}

.site-header::after {
  content: "";
  display: block;
  height: 6px;
  border-top: var(--border-thin) solid var(--color-primary);
  background-image: repeating-linear-gradient(90deg, var(--color-line) 0 1px, transparent 1px 12px);
}

.header-inner {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding: var(--space-2) var(--space-3);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  flex: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  flex: none;
  background-color: var(--color-primary);
  color: var(--color-primary-ink);
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  line-height: 1;
  letter-spacing: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.brand-name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  letter-spacing: 0.16em;
  color: var(--color-ink);
  line-height: 1.1;
}

.brand-sub {
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  color: var(--color-ink-muted);
  line-height: 1.1;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: var(--space-1);
  padding: 9px 14px;
  border: var(--border-thin) solid var(--color-line);
  background-color: var(--color-surface);
  color: var(--color-ink-soft);
  font-size: var(--text-sm);
  letter-spacing: 0.14em;
  transition: color 0.16s ease, border-color 0.16s ease;
}

.nav-toggle:hover { color: var(--color-primary); border-color: var(--color-primary); }

.nav-toggle-lines {
  display: inline-flex;
  flex-direction: column;
  gap: 4px;
  width: 16px;
}

.nav-toggle-lines span {
  display: block;
  height: 1px;
  width: 100%;
  background-color: currentColor;
}

.nav-toggle-lines span:nth-child(2) { width: 70%; }

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-list {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 6px 2px;
  font-size: var(--text-sm);
  letter-spacing: 0.12em;
  color: var(--color-ink-soft);
  transition: color 0.16s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background-color: var(--color-primary);
  transform: scaleX(0);
  transition: transform 0.18s ease;
}

.nav-link:hover { color: var(--color-ink); }
.nav-link:hover::after { transform: scaleX(1); }

.nav-link[aria-current="page"] {
  color: var(--color-primary);
  font-weight: var(--weight-heading);
}

.nav-link[aria-current="page"]::after { transform: scaleX(1); }

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 9px 18px;
  flex: none;
  background-color: var(--color-accent);
  border: var(--border-thin) solid var(--color-accent);
  color: var(--color-accent-ink);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  letter-spacing: 0.14em;
  transition: background-color 0.16s ease, border-color 0.16s ease;
}

.nav-cta:hover {
  background-color: color-mix(in srgb, var(--color-accent) 82%, var(--color-contrast-surface));
  border-color: color-mix(in srgb, var(--color-accent) 82%, var(--color-contrast-surface));
}

/* ================= footer ================= */
.site-footer {
  position: relative;
  margin-top: var(--section-y);
  background-color: var(--color-surface-alt);
  border-top: var(--border-thin) solid var(--color-line);
}

.site-footer::before {
  content: "";
  display: block;
  height: 6px;
  border-bottom: var(--border-thin) solid var(--color-line);
  background-image: repeating-linear-gradient(90deg, var(--color-primary) 0 1px, transparent 1px 12px);
}

.footer-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-2);
  padding-top: var(--space-8);
  padding-bottom: var(--space-4);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-brand .brand-mark { width: 32px; height: 32px; font-size: var(--text-base); }
.footer-brand .brand-name { font-size: var(--text-lg); }

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--color-ink-soft);
  letter-spacing: 0.08em;
}

.footer-panels {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border: var(--border-thin) solid var(--color-line);
  background-color: var(--color-surface);
}

.footer-panel {
  position: relative;
  padding: var(--space-4) var(--space-3);
  background-color: var(--color-surface);
}

.footer-panel + .footer-panel { border-left: 3px double var(--color-line); }

.footer-panel::after {
  content: "";
  position: absolute;
  inset: 5px;
  border: var(--border-thin) solid var(--color-line);
  opacity: 0.6;
  pointer-events: none;
}

.panel-title {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-bottom: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--weight-heading);
  letter-spacing: 0.26em;
  color: var(--color-primary);
}

.panel-title::after {
  content: "";
  flex: 1;
  height: 1px;
  background-color: var(--color-line);
}

.panel-list {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  font-size: var(--text-sm);
}

.panel-link {
  color: var(--color-ink-soft);
  border-bottom: var(--border-thin) solid transparent;
  transition: color 0.16s ease, border-color 0.16s ease;
}

.panel-link:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.panel-list-contact li {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.panel-label {
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  color: var(--color-ink-muted);
}

.panel-text {
  color: var(--color-ink-soft);
  overflow-wrap: anywhere;
}

.panel-text-num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
}

.footer-base {
  margin-top: var(--space-6);
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
}

.footer-base-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  padding-block: var(--space-3);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
}

.footer-icp { color: var(--color-contrast-accent); }

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer-legal a {
  border-bottom: var(--border-thin) solid var(--color-contrast-line);
  transition: color 0.16s ease, border-color 0.16s ease;
}

.footer-legal a:hover {
  color: var(--color-contrast-accent);
  border-bottom-color: var(--color-contrast-accent);
}

.footer-copy { opacity: 0.78; }

/* ================= odds bar ================= */
.odds-bar {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 70;
  background-color: var(--color-contrast-surface);
  color: var(--color-contrast-ink);
  border-top: 3px double var(--color-contrast-accent);
}

.odds-inner {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding: 10px var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.odds-tag {
  flex: none;
  padding-right: var(--space-3);
  border-right: var(--border-thin) solid var(--color-contrast-line);
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  letter-spacing: 0.26em;
  color: var(--color-contrast-accent);
}

.odds-panel {
  flex: 1 1 auto;
  min-width: 0;
}

.odds-list {
  display: flex;
  align-items: baseline;
  gap: var(--space-4);
  overflow-x: auto;
  padding-bottom: 2px;
}

.odds-item {
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-1);
  white-space: nowrap;
}

.odds-team {
  font-size: var(--text-sm);
  color: var(--color-contrast-ink);
  opacity: 0.82;
}

.odds-value {
  font-family: var(--font-mono);
  font-size: var(--text-lg);
  font-weight: var(--weight-heading);
  font-variant-numeric: tabular-nums;
  color: var(--color-contrast-accent);
}

.odds-link {
  flex: none;
  font-size: var(--text-sm);
  letter-spacing: 0.12em;
  border-bottom: var(--border-thin) solid var(--color-contrast-accent);
  transition: color 0.16s ease;
}

.odds-link:hover { color: var(--color-contrast-accent); }

.odds-toggle {
  flex: none;
  padding: 4px 12px;
  border: var(--border-thin) solid var(--color-contrast-line);
  color: var(--color-contrast-ink);
  font-size: var(--text-xs);
  letter-spacing: 0.14em;
  transition: border-color 0.16s ease, color 0.16s ease;
}

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

.odds-bar[data-collapsed="true"] .odds-panel { display: none; }
.odds-bar[data-collapsed="true"] .odds-inner { padding-block: 7px; }

/* ================= to top ================= */
.to-top {
  position: fixed;
  right: var(--space-3);
  bottom: calc(var(--space-2) + 62px);
  z-index: 80;
  padding: 8px 16px;
  border: var(--border-thin) solid var(--color-ink);
  background-color: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.18s ease, visibility 0.18s ease, color 0.16s ease;
}

.to-top::after {
  content: "";
  position: absolute;
  inset: 3px;
  border: var(--border-thin) solid transparent;
  pointer-events: none;
  transition: border-color 0.16s ease;
}

.to-top[data-visible="true"] { opacity: 1; visibility: visible; }

.to-top:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.to-top:hover::after { border-color: var(--color-primary); }

/* ================= motion & a11y ================= */
:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 2px;
}

html.js [data-reveal] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

html.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ================= responsive ================= */
@media (max-width: 1000px) {
  .grid-3,
  .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

  .grid-aside { grid-template-columns: minmax(0, 1fr); gap: var(--space-4); }
}

@media (max-width: 920px) {
  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: var(--space-2) var(--space-3) var(--space-3);
    background-color: var(--color-surface);
    border-top: var(--border-thin) solid var(--color-primary);
    border-bottom: var(--border-thin) solid var(--color-line);
  }

  .site-nav[data-open] { display: flex; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-list li + li { border-top: var(--border-thin) solid var(--color-line); }

  .nav-link {
    display: block;
    padding: 14px 0;
    font-size: var(--text-base);
  }

  .nav-link::after { display: none; }

  .nav-cta {
    justify-content: center;
    margin-top: var(--space-2);
    padding: 14px;
  }

  .footer-head { padding-top: var(--space-6); }

  .footer-panels {
    grid-template-columns: minmax(0, 1fr);
    border: var(--border-thin) solid var(--color-line);
  }

  .footer-panel + .footer-panel {
    border-left: 0;
    border-top: 3px double var(--color-line);
  }

  .footer-base-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-1);
  }
}

@media (max-width: 760px) {
  .section { padding-block: var(--space-8); }

  .odds-inner {
    flex-wrap: wrap;
    gap: var(--space-2);
    padding: 8px var(--space-2);
  }

  .odds-tag {
    padding-right: var(--space-2);
    letter-spacing: 0.16em;
  }

  .odds-panel {
    order: 3;
    flex-basis: 100%;
  }

  .odds-list { gap: var(--space-3); }

  .odds-value { font-size: var(--text-base); }

  .to-top {
    bottom: calc(var(--space-2) + 96px);
    right: var(--space-2);
  }
}

@media (max-width: 680px) {
  .grid-2,
  .grid-3,
  .grid-4 { grid-template-columns: minmax(0, 1fr); }

  .brand-sub { display: none; }

  .footer-tagline { font-size: var(--text-xs); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }

  html.js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}