/* Layout: brand banner, then left-aligned editorial bands (ride, drive, business), each with a
   narrow reading column beside a working "object" (fare ticket, checklist, product rows). */
@font-face { font-family: "Saira"; src: url("fonts/saira.woff2") format("woff2"); font-weight: 100 900; font-stretch: 50% 125%; font-display: swap; }
@font-face { font-family: "Figtree"; src: url("fonts/figtree.woff2") format("woff2"); font-weight: 300 900; font-display: swap; }

:root {
  --brand: #2a035e;        /* Rikba MT purple (banner background), same in both themes */
  --mint: #4ffab0;         /* Rikba MT mint (logo) */
  --ink: #2a035e;
  --sea: #5a17ad;          /* purple accent dark enough for text on light backgrounds */
  --sea-bright: #4ffab0;
  --stone: #f1ebfa;        /* soft lavender band */
  --bg: #f8f6fc;
  --surface: #ffffff;
  --fg: #1c0f33;
  --muted: #5a5070;
  --line: #e2daef;
  --on-ink: #f8f6fc;
  --display: "Saira", "Arial Narrow", system-ui, sans-serif;
  --body: "Figtree", system-ui, -apple-system, "Segoe UI", sans-serif;
  --step--1: 0.875rem; --step-0: 1.0625rem; --step-1: 1.25rem; --step-2: 1.6rem; --step-3: 2.2rem; --step-4: clamp(2.5rem, 6vw, 4.2rem);
  --gutter-l: max(16px, env(safe-area-inset-left, 0px));
  --gutter-r: max(16px, env(safe-area-inset-right, 0px));
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ink: #1c023f; --sea: #4ffab0; --sea-bright: #4ffab0; --stone: #1d0a3a;
    --bg: #12062a; --surface: #1d0b3b; --fg: #efeaf8; --muted: #b4a9ca; --line: #34225a; --on-ink: #efeaf8;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --ink: #1c023f; --sea: #4ffab0; --sea-bright: #4ffab0; --stone: #1d0a3a;
  --bg: #12062a; --surface: #1d0b3b; --fg: #efeaf8; --muted: #b4a9ca; --line: #34225a; --on-ink: #efeaf8;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; animation: none !important; } }
body { margin: 0; background: var(--bg); color: var(--fg); font: 400 var(--step-0)/1.6 var(--body); }
img { max-width: 100%; }
a { color: var(--sea); text-underline-offset: 3px; }
a:focus-visible, button:focus-visible { outline: 3px solid var(--sea-bright); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3 { font-family: var(--display); font-stretch: 87.5%; line-height: 1.05; text-wrap: balance; margin: 0; letter-spacing: -0.01em; }
h1 { font-size: var(--step-4); font-weight: 700; }
h2 { font-size: var(--step-3); font-weight: 700; }
h3 { font-size: var(--step-1); font-weight: 600; }
p { margin: 0; max-width: 62ch; }
.wrap { max-width: 72rem; margin-inline: auto; padding-left: var(--gutter-l); padding-right: var(--gutter-r); }
.eyebrow { font: 600 var(--step--1)/1.2 var(--display); text-transform: uppercase; letter-spacing: 0.14em; color: var(--sea); }
.lede { font-size: var(--step-1); color: var(--muted); }
.skip { position: absolute; left: -999px; top: 8px; background: var(--surface); padding: 8px 12px; z-index: 20; }
.skip:focus { left: var(--gutter-l); }

/* Header */
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 10; background: var(--brand); }
.site-header { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 9; background: var(--brand); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 12px; }
.brand { display: block; width: 136px; aspect-ratio: 600 / 144; background: url("logo-wordmark.png") left center / contain no-repeat; }
.brand span { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.nav { display: flex; gap: clamp(12px, 3vw, 28px); align-items: center; font: 600 var(--step--1)/1 var(--display); letter-spacing: 0.06em; text-transform: uppercase; }
.nav a { color: #f8f6fc; text-decoration: none; }
.nav a:hover { color: var(--mint); }
.site-header a:focus-visible { outline-color: var(--mint); }
@media (max-width: 640px) { .nav .opt { display: none; } }

/* Buttons */
.btn { display: inline-flex; align-items: center; gap: 10px; padding: 12px 20px; border-radius: 10px; font: 600 var(--step-0)/1.1 var(--body); text-decoration: none; border: 1.5px solid transparent; }
.btn-primary { background: var(--ink); color: var(--on-ink); border-color: var(--ink); }
:root[data-theme="dark"] .btn-primary { background: var(--sea); color: #1c023f; border-color: var(--sea); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .btn-primary { background: var(--sea); color: #1c023f; border-color: var(--sea); } }
.btn-ghost { color: var(--fg); border-color: var(--line); background: var(--surface); }
.btn-primary:hover, .btn-ghost:hover { filter: brightness(1.1); }
.btn small { display: block; font-size: 0.72rem; font-weight: 500; opacity: 0.8; letter-spacing: 0.02em; }
.btn[aria-disabled="true"] { opacity: 0.6; pointer-events: none; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* Banner: the brand artwork on its own purple, full width */
.banner { background: var(--brand); }
.banner img { display: block; width: 100%; max-width: 1600px; height: auto; margin-inline: auto; }

/* Hero */
.hero .wrap { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); gap: clamp(32px, 6vw, 80px); align-items: center; padding-block: clamp(40px, 8vw, 96px); }
.hero-copy { display: grid; gap: 22px; min-width: 0; }
.definition { font-size: var(--step--1); color: var(--muted); }
.definition b { font-family: var(--display); font-size: var(--step-0); color: var(--fg); }
.definition i { color: var(--sea); }
@media (max-width: 860px) { .hero .wrap { grid-template-columns: minmax(0, 1fr); } }

/* Fare ticket */
.ticket { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; padding: 24px; display: grid; gap: 18px; box-shadow: 0 24px 60px -30px rgb(42 3 94 / 0.45); position: relative; }
.ticket-head { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; }
.ticket-head .eyebrow { color: var(--muted); }
.route { display: grid; grid-template-columns: 18px 1fr; gap: 4px 14px; align-items: center; }
.route .dot { width: 12px; height: 12px; border-radius: 50%; border: 3px solid var(--sea-bright); justify-self: center; }
.route .dot.end { background: var(--ink); border-color: var(--ink); border-radius: 3px; }
:root[data-theme="dark"] .route .dot.end { background: var(--fg); border-color: var(--fg); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .route .dot.end { background: var(--fg); border-color: var(--fg); } }
.route .bar { width: 2px; height: 22px; background: var(--line); justify-self: center; }
.route strong { font: 600 var(--step-1)/1.2 var(--display); font-stretch: 87.5%; }
.route small { color: var(--muted); font-size: var(--step--1); }
.fare { display: flex; justify-content: space-between; align-items: end; gap: 12px; border-top: 1.5px dashed var(--line); padding-top: 18px; }
.fare .amount { font: 700 var(--step-3)/1 var(--display); font-variant-numeric: tabular-nums; }
.fare .note { font-size: var(--step--1); color: var(--muted); text-align: right; }
.ticket .stamp { position: absolute; top: -12px; right: 20px; background: var(--sea-bright); color: #1c023f; font: 700 0.72rem/1 var(--display); letter-spacing: 0.12em; text-transform: uppercase; padding: 7px 10px; border-radius: 6px; }

/* Bands */
.band { padding-block: clamp(56px, 9vw, 112px); border-top: 1px solid var(--line); }
.band .wrap { display: grid; gap: 40px; }
.band-head { display: grid; gap: 14px; max-width: 46rem; }
.band.stone { background: var(--stone); border-top: 0; }
.band.ink { background: var(--ink); color: var(--on-ink); border-top: 0; }
.band.ink .eyebrow { color: var(--sea-bright); }
.band.ink .lede, .band.ink p { color: color-mix(in srgb, var(--on-ink) 82%, transparent); }

.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; counter-reset: step; }
.steps li { display: grid; gap: 10px; align-content: start; padding-top: 18px; border-top: 2px solid var(--fg); counter-increment: step; }
.steps li::before { content: counter(step); font: 700 var(--step-2)/1 var(--display); color: var(--sea); }
.steps p { color: var(--muted); }
@media (max-width: 760px) { .steps { grid-template-columns: minmax(0, 1fr); } }

.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 64px); align-items: start; }
@media (max-width: 820px) { .split { grid-template-columns: minmax(0, 1fr); } }
.checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 0; background: var(--surface); border: 1px solid var(--line); border-radius: 14px; }
.checklist li { display: grid; grid-template-columns: 22px 1fr; gap: 14px; padding: 16px 20px; border-top: 1px solid var(--line); }
.checklist li:first-child { border-top: 0; }
.checklist li::before { content: ""; width: 18px; height: 18px; margin-top: 4px; border-radius: 5px; border: 2px solid var(--sea); background: linear-gradient(var(--sea), var(--sea)) center / 8px 8px no-repeat; }
.checklist b { display: block; }
.checklist span { color: var(--muted); font-size: var(--step--1); }
.stack { display: grid; gap: 18px; align-content: start; }

.products { display: grid; gap: 0; }
.product { display: grid; grid-template-columns: minmax(0, 14rem) minmax(0, 1fr) auto; gap: 24px; align-items: baseline; padding-block: 24px; border-top: 1px solid color-mix(in srgb, var(--fg) 25%, transparent); }
.product:last-child { border-bottom: 1px solid color-mix(in srgb, var(--fg) 25%, transparent); }
.product p { color: var(--muted); }
.product .addr { font: 600 var(--step--1)/1 var(--display); letter-spacing: 0.06em; white-space: nowrap; }
@media (max-width: 760px) { .product { grid-template-columns: minmax(0, 1fr); gap: 8px; } }

.download .wrap { grid-template-columns: minmax(0, 1fr) auto; align-items: center; }
@media (max-width: 760px) { .download .wrap { grid-template-columns: minmax(0, 1fr); } }
.band.ink .btn-ghost { background: transparent; color: var(--on-ink); border-color: color-mix(in srgb, var(--on-ink) 35%, transparent); }
.band.ink .btn-primary { background: var(--sea-bright); color: #1c023f; border-color: var(--sea-bright); }

/* Footer */
.site-footer { padding-block: 40px; font-size: var(--step--1); color: var(--muted); }
.site-footer .wrap { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 16px 32px; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.site-footer a { color: var(--fg); }

/* Legal pages */
.legal { padding-block: clamp(40px, 7vw, 80px); }
.legal .wrap { max-width: 46rem; display: grid; gap: 18px; }
.legal h1 { font-size: var(--step-3); }
.legal h2 { font-size: var(--step-1); margin-top: 22px; font-weight: 600; }
.legal ul { margin: 0; padding-left: 1.2em; display: grid; gap: 6px; max-width: 62ch; }
.legal .meta { color: var(--muted); font-size: var(--step--1); }
.legal table { border-collapse: collapse; width: 100%; font-size: var(--step--1); }
.legal th, .legal td { text-align: left; padding: 10px 12px 10px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.table-scroll { overflow-x: auto; }
.todo { background: color-mix(in srgb, #ffb020 35%, transparent); color: inherit; padding: 0 4px; border-radius: 3px; }