/* Riding Hall: the one stylesheet (VISUAL-DESIGN-SYSTEM.md). Heritage
   countryside and quiet money: hunter green, saddle tan, cream, deep navy;
   matte; no gradients, no neon, no badges. Large, high-contrast controls to
   WCAG 2.2 AA; recording state shown beyond colour. */

:root {
  --rh-green: #1F3D2B;
  --rh-tan: #8B5A2B;
  --rh-cream: #F4EFE6;
  --rh-navy: #1B2A41;
  --rh-ink: #141A1F;
  --rh-record: #9B2C2C;
  --rh-paper: #FBF8F2;
  --rh-rule: #D9CFBF;
  --rh-muted: #4A5568;
  --rh-focus: #1B2A41;
  /* The road's standard pairings, which the contrast gate checks (WCAG 2.2 AA): */
  --surface: var(--rh-cream);
  --surface-sunken: #EBE4D6;
  --surface-raised: var(--rh-paper);
  --text: var(--rh-navy);
  --text-muted: var(--rh-muted);
  --text-inverse: var(--rh-cream);
  --action: var(--rh-green);
  --action-hover: #163021;
  --action-quiet: #E3EBE4;
  --focus-ring: var(--rh-focus);
  --border-strong: #8A7E6B;
  --colour-positive-500: #1F3D2B;
  --colour-caution-500: #7A4B1E;
  --colour-critical-500: #9B2C2C;
  /* One spacing scale per product (AW-104): */
  --arcwright-spacing-scale: pair 0.5rem, between 1.25rem, submit 2rem;
  --font-serif: "Fraunces", Georgia, "Times New Roman", serif;
  --font-sans: "Atkinson Hyperlegible Next", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --space-1: 0.5rem; --space-2: 1rem; --space-3: 1.5rem; --space-4: 2.5rem;
  --radius: 6px;
  --target: 48px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; background: var(--rh-cream); color: var(--rh-navy); font-family: var(--font-sans); font-size: 1.0625rem; line-height: 1.5; font-variant-numeric: tabular-nums; min-height: 100dvh; display: flex; flex-direction: column; }
main { flex: 1; width: min(60rem, 100% - 2rem); margin: 0 auto; padding: var(--space-2) 0 var(--space-4); }

h1, h2, h3 { font-family: var(--font-serif); color: var(--rh-green); font-weight: 650; line-height: 1.15; margin: 0 0 var(--space-2); letter-spacing: -0.01em; }
h1 { font-size: clamp(1.75rem, 2vw + 1.2rem, 2.5rem); }
h2 { font-size: 1.375rem; margin-top: var(--space-3); }
h3 { font-size: 1.125rem; margin-top: var(--space-2); }
p { margin: 0 0 var(--space-2); }
a { color: var(--rh-green); text-underline-offset: 0.15em; }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible { outline: 3px solid var(--rh-focus); outline-offset: 2px; }
.muted { color: var(--rh-muted); }
.error { color: var(--rh-record); font-weight: 600; }
.emergency { border-left: 4px solid var(--rh-record); padding: var(--space-1) var(--space-2); background: var(--rh-paper); color: var(--rh-navy); }
.notice { border-left: 4px solid var(--rh-tan); }

.masthead { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); width: min(60rem, 100% - 2rem); margin: 0 auto; padding: var(--space-2) 0; border-bottom: 1px solid var(--rh-rule); flex-wrap: wrap; }
.wordmark { display: inline-flex; align-items: center; gap: var(--space-1); font-family: var(--font-serif); font-weight: 700; font-size: 1.375rem; color: var(--rh-green); text-decoration: none; min-height: var(--target); }
.mark { color: var(--rh-green); }
.mark .mark-rail { color: var(--rh-tan); }
.nav ul { list-style: none; display: flex; gap: var(--space-2); margin: 0; padding: 0; flex-wrap: wrap; }
.nav a { display: inline-flex; align-items: center; min-height: var(--target); padding: 0 var(--space-1); text-decoration: none; border-bottom: 3px solid transparent; }
.nav a[aria-current="page"] { border-bottom-color: var(--rh-tan); }
.foot { width: min(60rem, 100% - 2rem); margin: 0 auto; padding: var(--space-2) 0 var(--space-3); border-top: 1px solid var(--rh-rule); font-size: 0.9375rem; }

.panel, .lesson, .watch, .diary, .lessons-list { background: var(--rh-paper); color: var(--rh-navy); border: 1px solid var(--rh-rule); border-radius: var(--radius); padding: var(--space-3); margin-top: var(--space-2); }
.panel.narrow { max-width: 32rem; margin-inline: auto; }
.hero { padding: var(--space-4) 0 var(--space-3); }
.lede { font-size: 1.25rem; max-width: 42rem; }
.three { display: grid; gap: var(--space-2); grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); }
.three article { background: var(--rh-paper); color: var(--rh-navy); border: 1px solid var(--rh-rule); border-radius: var(--radius); padding: var(--space-2) var(--space-3); }
.plain { padding: var(--space-3) 0; max-width: 42rem; }
.legal { max-width: 44rem; margin: 0 auto; }

button, .button { font: inherit; font-weight: 600; min-height: var(--target); padding: 0 var(--space-3); border-radius: var(--radius); border: 2px solid var(--rh-green); background: var(--rh-green); color: var(--rh-cream); cursor: pointer; display: inline-flex; align-items: center; justify-content: center; text-decoration: none; }
button.secondary { background: transparent; color: var(--rh-green); }
button.danger { background: transparent; color: var(--rh-record); border-color: var(--rh-record); }
@media (hover: hover) { button:hover, .button:hover { background: var(--action-hover); color: var(--rh-cream); transform: translateY(-1px); } button.secondary:hover, button.danger:hover { background: var(--action-quiet); color: var(--rh-green); transform: translateY(-1px); } }
button:active, .button:active { background: var(--rh-navy); color: var(--rh-cream); transform: translateY(1px); }
button.secondary:active, button.danger:active { background: var(--surface-sunken); color: var(--rh-navy); }
button[disabled] { opacity: 0.55; cursor: not-allowed; }
input, select, textarea { font: inherit; min-height: var(--target); padding: 0.5rem 0.75rem; border: 2px solid var(--border-strong); border-radius: var(--radius); background: #fff; color: var(--rh-ink); width: 100%; }
textarea { min-height: 6rem; }
label { display: block; font-weight: 600; margin-bottom: var(--space-1); }
label input[type="checkbox"] { width: 1.5rem; height: 1.5rem; min-height: 0; vertical-align: middle; margin-right: var(--space-1); }
.stack { display: grid; gap: var(--space-2); max-width: 36rem; }
.stack.inline { grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr)); align-items: end; }
form.inline { display: flex; gap: var(--space-1); flex-wrap: wrap; align-items: center; margin-bottom: var(--space-1); }
table.list { width: 100%; border-collapse: collapse; margin-bottom: var(--space-2); }
table.list th, table.list td { text-align: left; padding: 0.5rem; border-bottom: 1px solid var(--rh-rule); }

.daynav { display: flex; align-items: center; justify-content: space-between; gap: var(--space-2); }
.daynav h1 { margin: 0; font-size: 1.5rem; }
.daynav a { min-height: var(--target); display: inline-flex; align-items: center; }
ol.lessons, .lessons-list ol { list-style: none; margin: var(--space-2) 0; padding: 0; display: grid; gap: var(--space-1); }
.lesson-card { display: flex; flex-wrap: wrap; gap: var(--space-1) var(--space-2); align-items: baseline; padding: var(--space-2); border: 1px solid var(--rh-rule); border-radius: var(--radius); background: #fff; color: var(--rh-navy); }
.lesson-card a { text-decoration: none; display: flex; gap: var(--space-2); flex: 1; min-height: var(--target); align-items: center; }
.lesson-card .clock, .lesson-card .when { font-weight: 700; color: var(--rh-ink); }
.lesson-card .who { font-weight: 600; }
.lesson-card .filming, .lesson-card .state { color: var(--rh-muted); font-size: 0.9375rem; }
.lesson-card.state-filmable .filming { color: var(--rh-green); font-weight: 600; }
.lesson-card.state-refused .filming { color: var(--rh-tan); }

/* The capture screen shows one thing: rider, horse, red button, clock, state (CAPTURE-SPEC §1). */
.capture { display: grid; gap: var(--space-2); }
.scene { font-size: 1.125rem; }
.viewfinder { position: relative; background: var(--rh-ink); color: var(--rh-cream); border-radius: var(--radius); aspect-ratio: 16 / 9; overflow: hidden; }
.viewfinder video { width: 100%; height: 100%; object-fit: cover; display: block; }
.rec-state { position: absolute; top: var(--space-1); left: var(--space-1); display: flex; gap: var(--space-1); align-items: center; background: rgba(20, 26, 31, 0.85); color: var(--rh-cream); padding: 0.25rem 0.75rem; border-radius: var(--radius); font-weight: 700; font-size: 1.125rem; }
.rec-state.recording .rec-word::before { content: ""; display: inline-block; width: 0.8em; height: 0.8em; background: var(--rh-record); margin-right: 0.4em; vertical-align: -0.05em; border-radius: 2px; }
.controls { display: flex; gap: var(--space-2); justify-content: center; }
button.record { min-width: 96px; min-height: 96px; border-radius: 50%; background: var(--rh-record); color: var(--rh-cream); border-color: var(--rh-record); font-size: 1.125rem; }
button.stop { min-width: 96px; min-height: 96px; border-radius: var(--radius); background: var(--rh-ink); color: var(--rh-cream); border-color: var(--rh-ink); font-size: 1.125rem; }
.upload-state { text-align: center; font-weight: 600; }
.state { font-weight: 600; }
.guardian-words, .child-words, .child-explanation { background: #fff; color: var(--rh-navy); border: 1px solid var(--rh-rule); border-radius: var(--radius); padding: var(--space-2); }
.child-words { font-size: 1.25rem; line-height: 1.55; }
.player video { width: 100%; background: var(--rh-ink); color: var(--rh-cream); border-radius: var(--radius); aspect-ratio: 16 / 9; }
.actions { margin-top: var(--space-3); display: grid; gap: var(--space-1); }
details summary { cursor: pointer; min-height: var(--target); display: flex; align-items: center; font-weight: 600; }

@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } button:hover, .button:hover, button:active, .button:active { transform: none; } }
@media (max-width: 40rem) { .panel, .lesson, .watch, .diary, .lessons-list { padding: var(--space-2); } .lesson-card a { flex-direction: column; align-items: flex-start; gap: 0; } }