/* Ramble's screens. Every color, family, type size, space and radius comes from tokens/tokens.css through var(). */
@font-face{font-family:'Instrument Serif';src:url('fonts/instrument-serif-latin-400-normal.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Instrument Serif';src:url('fonts/instrument-serif-latin-400-italic.woff2') format('woff2');font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:'Alegreya Sans';src:url('fonts/alegreya-sans-latin-400-normal.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'Alegreya Sans';src:url('fonts/alegreya-sans-latin-700-normal.woff2') format('woff2');font-weight:700;font-style:normal;font-display:swap}
@font-face{font-family:'Alegreya Sans';src:url('fonts/alegreya-sans-latin-400-italic.woff2') format('woff2');font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:'DM Mono';src:url('fonts/dm-mono-latin-400-normal.woff2') format('woff2');font-weight:400;font-style:normal;font-display:swap}
@font-face{font-family:'DM Mono';src:url('fonts/dm-mono-latin-500-normal.woff2') format('woff2');font-weight:500;font-style:normal;font-display:swap}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--color-background); color: var(--color-ink); font-family: var(--font-body); font-size: var(--size-body); line-height: 1.5; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 400; line-height: 1.1; margin: 0 0 var(--space-3); }
h1 { font-size: var(--size-title); }
h2 { font-size: var(--size-heading); margin: 0; }
h3 { font-size: var(--size-heading); margin-top: var(--space-6); }
p { margin: 0 0 var(--space-3); }

/* Captions: the mono, small and tracked, like the edge print on a film strip. */
.app-name, .screen-note, .badge, .stats dt, .stop-list li::before, .district { font-family: var(--font-mono); font-size: var(--size-small); letter-spacing: 0.08em; text-transform: uppercase; }

/* The board: the four screens side by side, each in a phone frame. */
.board { display: grid; grid-template-columns: repeat(4, var(--device-width)); gap: var(--space-6); justify-content: center; align-items: start; min-height: 100vh; padding: var(--space-6); }
.phone { display: flex; flex-direction: column; width: var(--device-width); height: var(--device-height); overflow: hidden; background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius-device); }
.screen-header { display: flex; align-items: baseline; gap: var(--space-3); padding: var(--space-6) var(--space-4) var(--space-3); border-bottom: 1px solid var(--color-line); }
.screen-header .screen-note { margin: 0 0 0 auto; color: var(--color-muted); }
.app-name { margin: 0; color: var(--color-ink); font-weight: 500; }
.screen-body { flex: 1; overflow-y: auto; padding: var(--space-4); }
.screen-actions { display: grid; gap: var(--space-2); padding: var(--space-4); border-top: 1px solid var(--color-line); }
.lead { color: var(--color-muted); }
.benefits { list-style: none; margin: var(--space-4) 0 0; padding: 0; border-top: 1px solid var(--color-line); }
.benefits li { padding: var(--space-2) 0; border-bottom: 1px solid var(--color-line); }

/* The hairline plan of Port Calder: one weight of ink on linen, the water hatched like a weave. */
.plan { margin: 0 0 var(--space-6); padding: var(--space-3) 0; border-bottom: 1px solid var(--color-line); color: var(--color-ink); }
#port-plan { display: block; width: 100%; height: auto; fill: none; stroke: currentColor; stroke-width: 1; stroke-linecap: round; stroke-linejoin: round; }
#port-plan .plan-water { stroke: var(--color-line); }
#port-plan .plan-light { fill: var(--color-accent); stroke: var(--color-accent); }

.button { display: block; width: 100%; min-height: 44px; padding: var(--space-3) var(--space-4); border: 1px solid transparent; border-radius: var(--radius-control); font: inherit; font-weight: 700; text-align: center; text-decoration: none; cursor: pointer; }
.button.primary { background: var(--color-accent); color: var(--color-accent-ink); }
.button.quiet { background: transparent; color: var(--color-ink); border-color: var(--color-line); }
.button:focus-visible, .chip:focus-visible, .walk-card:focus-visible, .back:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; }

.filters { display: flex; gap: var(--space-2); padding: var(--space-3) var(--space-4) 0; }
.chip { min-height: 44px; padding: var(--space-1) var(--space-3); border: 1px solid var(--color-line); border-radius: var(--radius-control); background: transparent; color: var(--color-ink); font: inherit; font-size: var(--size-small); white-space: nowrap; cursor: pointer; }
.chip[aria-pressed="true"] { background: var(--color-ink); border-color: var(--color-ink); color: var(--color-surface); }

.walk-list, .stop-list, .route { list-style: none; margin: 0; padding: 0; }
.walk-list { border-top: 1px solid var(--color-line); }
.walk-card { display: grid; gap: var(--space-1); width: 100%; padding: var(--space-4) 0; border: 0; border-bottom: 1px solid var(--color-line); border-radius: 0; background: transparent; color: var(--color-ink); font: inherit; text-align: left; cursor: pointer; }
.walk-name { font-family: var(--font-display); font-size: var(--size-heading); line-height: 1.1; }
.walk-meta { color: var(--color-muted); }
.district { color: var(--color-muted); }
.badge { justify-self: start; padding: 0 var(--space-2); border: 1px solid var(--color-accent); border-radius: var(--radius-control); background: var(--color-badge); color: var(--color-accent); }

.back { display: inline-grid; place-items: center; min-width: 44px; min-height: 44px; margin: calc(-1 * var(--space-3)) 0; color: var(--color-ink); font-size: var(--size-heading); text-decoration: none; }
.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin: var(--space-4) 0; border-top: 1px solid var(--color-line); border-bottom: 1px solid var(--color-line); }
.stats div { padding: var(--space-2); }
.stats div + div { border-left: 1px solid var(--color-line); }
.stats dt { color: var(--color-muted); }
.stats dd { margin: 0; font-weight: 700; }

/* A walk as a contact sheet: each stop a numbered square frame, read in order. */
.contact-sheet h3 { margin-top: var(--space-6); }
.stop-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-2); counter-reset: stop; font-variant-numeric: tabular-nums; }
.stop-list li { counter-increment: stop; display: flex; flex-direction: column; justify-content: space-between; aspect-ratio: 1 / 1; padding: var(--space-2); border: 1px solid var(--color-line); background: var(--color-badge); font-family: var(--font-display); font-size: var(--size-heading); line-height: 1.05; }
.stop-list li::before { content: counter(stop, decimal-leading-zero); color: var(--color-muted); line-height: 1.5; }

/* On the walk: a strip of stops, the current one breathing slowly, and the stop seen through a square viewfinder. */
.route { display: flex; gap: var(--space-2); margin-bottom: var(--space-4); padding: var(--space-2) 0; }
.route li { flex: 1; height: var(--space-2); border-radius: var(--radius-control); background: var(--color-badge); border: 1px solid var(--color-line); }
.route li[data-state="done"] { background: var(--color-line); }
.route li[data-state="current"] { background: var(--color-accent); border-color: var(--color-accent); animation: slow-breath 6s ease-in-out 4; }
@keyframes slow-breath {
  0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--color-accent) 0%, transparent); }
  50% { box-shadow: 0 0 0 5px color-mix(in srgb, var(--color-accent) 22%, transparent); }
}

.viewfinder { position: relative; display: grid; align-items: end; aspect-ratio: 1 / 1; padding: var(--space-6) var(--space-4); background:
  linear-gradient(var(--color-ink), var(--color-ink)) top left / 18px 1px no-repeat,
  linear-gradient(var(--color-ink), var(--color-ink)) top left / 1px 18px no-repeat,
  linear-gradient(var(--color-ink), var(--color-ink)) top right / 18px 1px no-repeat,
  linear-gradient(var(--color-ink), var(--color-ink)) top right / 1px 18px no-repeat,
  linear-gradient(var(--color-ink), var(--color-ink)) bottom left / 18px 1px no-repeat,
  linear-gradient(var(--color-ink), var(--color-ink)) bottom left / 1px 18px no-repeat,
  linear-gradient(var(--color-ink), var(--color-ink)) bottom right / 18px 1px no-repeat,
  linear-gradient(var(--color-ink), var(--color-ink)) bottom right / 1px 18px no-repeat,
  var(--color-badge); }
.viewfinder::before { content: ""; position: absolute; top: 50%; left: 50%; width: 14px; height: 14px; margin: -7px 0 0 -7px; border: 1px solid var(--color-line); border-radius: 50%; }
.stop-frame h3 { margin: 0 0 var(--space-2); font-size: var(--size-title); }
.stop-frame p { margin: 0; }
.stop-frame.developing { animation: develop 1.6s ease-out both; }
@keyframes develop {
  from { opacity: 0.25; filter: blur(3px) contrast(0.6); }
  to { opacity: 1; filter: none; }
}
.pause-line { margin-top: var(--space-4); color: var(--color-muted); font-style: italic; }
.noscript { padding: var(--space-6); text-align: center; }

/* A phone shows one screen per viewport, without the frame. */
@media (max-width: 899px) {
  .board { display: block; padding: 0; }
  .phone { width: auto; height: 100vh; height: 100dvh; border: 0; border-radius: 0; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .route li[data-state="current"], .stop-frame.developing { animation: none; }
}