/* ============================================================
   Faces in the City — Editorial Noir
   Monochrome editorial aesthetic. See design/DESIGN.md.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Epilogue:wght@400;500;600;700&family=Inter:wght@400;500;600;700&display=swap');

:root {
  /* Palette — strictly monochrome */
  --ink:        #000000;
  --ink-soft:   #1b1c1c;
  --ink-mute:   #4c4546;
  --rule:       #000000;
  --line-soft:  #cfc4c5;
  --paper:      #ffffff;
  --paper-tint: #f5f3f3;
  --error:      #ba1a1a;

  /* Typography */
  --font-display: 'Epilogue', 'Helvetica Neue', Arial, sans-serif;
  --font-body:    'Inter', 'Helvetica Neue', Arial, sans-serif;

  /* Spacing — 8px baseline */
  --u: 8px;
  --gutter: 32px;
  --margin: 24px;          /* mobile-first; bumped up at wider breakpoints */
  --stack-sm: 16px;
  --stack-md: 40px;
  --stack-lg: 80px;
  --container-max: 1280px;
  --reading-max: 720px;

  /* Strokes */
  --stroke-hair:  1px;
  --stroke-bold:  2px;
}

@media (min-width: 720px) {
  :root { --margin: 64px; }
}

/* ----- Reset ----- */

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

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink-soft);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

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

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

hr {
  border: 0;
  border-top: var(--stroke-hair) solid var(--rule);
  margin: 0;
}

/* ----- Utility ----- */

.hidden  { display: none !important; }
.muted   { color: var(--ink-mute); }
.error   { color: var(--error); margin-top: var(--stack-sm); font-family: var(--font-body); }

/* The structural workhorse: tiny uppercase metadata */
.label-caps {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* ----- Frame: shared container for all pages ----- */

.frame {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--margin);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}

/* Top masthead bar: sits across both pages */
.masthead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: calc(var(--u) * 3) 0 calc(var(--u) * 2);
  border-bottom: var(--stroke-hair) solid var(--rule);
}

.masthead__brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.masthead__meta {
  display: flex;
  gap: calc(var(--u) * 3);
}

/* ----- Landing page ----- */

.landing__hero {
  padding: calc(var(--u) * 10) 0 calc(var(--u) * 8);
  border-bottom: var(--stroke-hair) solid var(--rule);
}

.landing__eyebrow {
  display: block;
  margin-bottom: calc(var(--u) * 3);
  color: var(--ink-soft);
}

.landing__title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(48px, 9vw, 96px);
  line-height: 0.96;
  letter-spacing: -0.04em;
  margin: 0 0 calc(var(--u) * 3);
  color: var(--ink);
}

.landing__lede {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.5;
  max-width: 36ch;
  margin: 0;
  color: var(--ink-mute);
}

/* Section header used between blocks */
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  padding: calc(var(--u) * 5) 0 calc(var(--u) * 3);
}

.section-head__title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin: 0;
  color: var(--ink);
}

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

/* The sketch list reads as an editorial table of contents */
.sketch-list {
  list-style: none;
  margin: 0 0 var(--stack-lg);
  padding: 0;
  border-top: var(--stroke-bold) solid var(--rule);
}

.sketch-list__loading {
  padding: calc(var(--u) * 3) 0;
  color: var(--ink-mute);
}

.sketch-list li {
  border-bottom: var(--stroke-hair) solid var(--rule);
}

.sketch-list a {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: calc(var(--u) * 3);
  padding: calc(var(--u) * 3) calc(var(--u) * 2);
  transition: background 0.15s ease, color 0.15s ease;
}

/* Numeric index — like volume / issue numbers in print */
.sketch-list li {
  counter-increment: toc;
}
.sketch-list { counter-reset: toc; }

.sketch-list a::before {
  content: counter(toc, decimal-leading-zero);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--ink-mute);
  min-width: 3ch;
}

.sketch-list .meta {
  display: flex;
  flex-direction: column;
  gap: calc(var(--u) * 1);
  min-width: 0;
}

.sketch-list .title {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(20px, 3.4vw, 28px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  color: var(--ink);
}

.sketch-list .location {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.sketch-list .arrow {
  font-family: var(--font-display);
  font-size: 22px;
  line-height: 1;
  color: var(--ink);
}

.sketch-list a:hover,
.sketch-list a:focus-visible {
  background: var(--ink);
  color: var(--paper);
  outline: none;
}

.sketch-list a:hover::before,
.sketch-list a:focus-visible::before,
.sketch-list a:hover .title,
.sketch-list a:focus-visible .title,
.sketch-list a:hover .location,
.sketch-list a:focus-visible .location,
.sketch-list a:hover .arrow,
.sketch-list a:focus-visible .arrow {
  color: var(--paper);
}

/* Footer band — black inverse plate */
.colophon {
  margin-top: auto;
  background: var(--ink);
  color: var(--paper);
  padding: calc(var(--u) * 8) var(--margin);
  margin-left: calc(var(--margin) * -1);
  margin-right: calc(var(--margin) * -1);
}

.colophon__statement {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(22px, 3vw, 28px);
  line-height: 1.25;
  letter-spacing: -0.01em;
  max-width: 28ch;
  margin: 0 0 calc(var(--u) * 6);
}

.colophon__meta {
  display: flex;
  justify-content: space-between;
  gap: calc(var(--u) * 4);
  color: #c6c6c6;
}

/* ----- Sketch (per-spot) page ----- */

.sketch-page {
  padding-bottom: var(--stack-lg);
}

.sketch-page__header {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  column-gap: calc(var(--u) * 3);
  padding: calc(var(--u) * 3) 0 calc(var(--u) * 4);
  border-bottom: var(--stroke-hair) solid var(--rule);
}

.back {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink);
  padding: calc(var(--u) * 1) calc(var(--u) * 1.5);
  border: var(--stroke-bold) solid var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease, color 0.15s ease;
}
.back:hover { background: var(--ink); color: var(--paper); }

.sketch-page h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 5vw, 44px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0;
  color: var(--ink);
}

.view {
  display: flex;
  flex-direction: column;
  padding-top: calc(var(--u) * 5);
}

/* ----- Locked state ----- */

.lock-card {
  display: grid;
  gap: calc(var(--u) * 3);
  padding: calc(var(--u) * 6) 0;
  border-bottom: var(--stroke-hair) solid var(--rule);
}

.lock-card__icon {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  border: var(--stroke-bold) solid var(--ink);
  padding: calc(var(--u) * 1) calc(var(--u) * 1.5);
  width: max-content;
}

.lock-card__subtitle {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--ink);
}

.lock-card__hint {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  max-width: 52ch;
  margin: 0;
  color: var(--ink-mute);
}

/* ----- Buttons ----- */

.primary,
.ghost {
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: calc(var(--u) * 2) calc(var(--u) * 3);
  border: var(--stroke-bold) solid var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  transition: background 0.15s ease, color 0.15s ease;
}

.primary {
  background: var(--ink);
  color: var(--paper);
}
.primary:hover  { background: var(--paper); color: var(--ink); }
.primary:active { transform: translateY(1px); }

.ghost {
  background: var(--paper);
  color: var(--ink);
}
.ghost:hover  { background: var(--ink); color: var(--paper); }
.ghost:active { transform: translateY(1px); }

/* ----- Camera state ----- */

.view--camera { gap: calc(var(--u) * 2); }

.camera-stage {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 4;
  background: #000;
  border: var(--stroke-bold) solid var(--ink);
  overflow: hidden;
}

.camera-stage video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.camera-stage .overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  /* Keep the line art readable on any background */
  filter:
    drop-shadow(0 0 2px rgba(255, 255, 255, 0.95))
    drop-shadow(0 0 1px rgba(255, 255, 255, 0.95));
}

/* Corner registration marks — print-house feel inside the viewfinder */
.camera-stage::before,
.camera-stage::after {
  content: '';
  position: absolute;
  width: 24px;
  height: 24px;
  border: 2px solid var(--paper);
  pointer-events: none;
}
.camera-stage::before {
  top: 12px; left: 12px;
  border-right: 0; border-bottom: 0;
}
.camera-stage::after {
  bottom: 12px; right: 12px;
  border-left: 0; border-top: 0;
}

.alignment-readout {
  position: absolute;
  top: 12px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  gap: calc(var(--u) * 1.5);
  background: var(--paper);
  color: var(--ink);
  padding: calc(var(--u) * 1) calc(var(--u) * 1.5);
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border: var(--stroke-hair) solid var(--ink);
  pointer-events: none;
}

.alignment-readout #alignment-confidence {
  font-variant-numeric: tabular-nums;
  color: var(--ink-mute);
}

.camera-controls {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: calc(var(--u) * 2);
  padding-top: calc(var(--u) * 2);
}

.camera-controls .ghost,
.camera-controls .primary { width: 100%; }

/* ----- Unlocked state ----- */

.sketch-frame {
  border: var(--stroke-bold) solid var(--ink);
  padding: calc(var(--u) * 4);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--paper);
}

.sketch-frame img {
  max-width: 100%;
  height: auto;
}

/* Player */

.player {
  margin-top: calc(var(--u) * 5);
  border-top: var(--stroke-bold) solid var(--ink);
  padding-top: calc(var(--u) * 3);
  display: grid;
  grid-template-areas:
    "label   label"
    "controls time";
  grid-template-columns: 1fr auto;
  align-items: center;
  row-gap: calc(var(--u) * 2);
  column-gap: calc(var(--u) * 3);
}

.player::before {
  content: 'Audio';
  grid-area: label;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.player audio { display: none; }

.player__controls {
  grid-area: controls;
  display: flex;
  align-items: stretch;
  gap: 0;
}

.player__skip,
.player__play {
  border: var(--stroke-bold) solid var(--ink);
  background: var(--paper);
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.15s ease, color 0.15s ease;
}

.player__skip {
  width: 56px;
  height: 56px;
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.player__skip + .player__play { border-left: 0; }
.player__play + .player__skip { border-left: 0; }

.player__skip svg {
  width: 28px;
  height: 28px;
}

.player__play {
  width: 64px;
  height: 56px;
  background: var(--ink);
  color: var(--paper);
}

.player__play svg {
  width: 22px;
  height: 22px;
}

.player__skip:hover  { background: var(--ink); color: var(--paper); }
.player__play:hover  { background: var(--paper); color: var(--ink); }

.player__skip svg path,
.player__skip svg polygon,
.player__play svg path,
.player__play svg polygon,
.player__play svg rect {
  fill: currentColor;
  stroke: currentColor;
}

.player__time {
  grid-area: time;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  color: var(--ink);
}

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

/* ----- Misc ----- */

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