/* design-studio · macro: storyboard · paper: dark · display: serif · accent: warm */
/* WorrySorted — night.css (index, motion redesign "The Night Shift").
   One night, 3am to dawn: the page scrolls from ink to a paper dawn band.
   Tokens are brand-system.md §2. Two families only: Fraunces + JetBrains Mono.
   CSP is self-only: no inline styles; JS only touches CSSOM. */

@font-face {
  font-family: "Fraunces";
  src: url("/fonts/Fraunces-Variable.woff2") format("woff2-variations"),
       url("/fonts/Fraunces-Variable.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}
@font-face {
  font-family: "JetBrains Mono";
  src: url("/fonts/JetBrainsMono-Variable.woff2") format("woff2-variations"),
       url("/fonts/JetBrainsMono-Variable.woff2") format("woff2");
  font-weight: 100 800;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --bg: #17140F;
  --bg-2: #241E16;
  --text: #F4ECDC;
  --text-2: #B4A58C;
  --amber: #E3A542;
  --teal: #4FA085;
  --teal-ink: #17140F;
  --rust: #E2725B;
  --rule: #3A3225;
  --field: #1D1913;
  --focus: #E3A542;
  --paper: #F6F1E6;
  --paper-shade: #EAE1CE;
  --ink-on-paper: #221C14;
  --ink-2-on-paper: #6B5F4C;
  --teal-on-paper: #1F6E58;
  --warm-glow: #3A2814;
  --window-a: rgba(227, 165, 66, 0.07);
  --window-b: rgba(244, 236, 220, 0.05);
  --grain-opacity: 0.07;
  --lamp: rgba(227, 165, 66, 0.12);
  --dawn-paper: #E6DCC8;
  --dawn-field: #F1EADB;
  --dawn-mid: #4A3420;

  --serif: "Fraunces", ui-serif, Georgia, serif;
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --gutter: max(20px, env(safe-area-inset-left, 0px));
  --gutter-r: max(20px, env(safe-area-inset-right, 0px));
}

@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --bg: #F6F1E6;
    --bg-2: #EAE1CE;
    --text: #221C14;
    --text-2: #6B5F4C;
    --amber: #8A5A16;
    --teal: #1F6E58;
    --teal-ink: #F6F1E6;
    --rust: #A83E27;
    --rule: #D9CDB0;
    --field: #FBF8F1;
    --focus: #1F6E58;
    --paper: #FBF8F1;
    --warm-glow: #EFDDBB;
    --window-a: rgba(34, 28, 20, 0.035);
    --window-b: rgba(34, 28, 20, 0.02);
    --grain-opacity: 0.05;
    --lamp: rgba(138, 90, 22, 0.07);
    --dawn-paper: #FBF8F1;
    --dawn-field: #FFFDF9;
    --dawn-mid: #EBD3A8;
  }
}

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

html { background: var(--bg); }

/* The canvas colour comes from html; body stays transparent so the fixed
   .sky layer (z-index -1) is not painted over by the body box. */
body {
  margin: 0;
  background: transparent;
  color: var(--text);
  font-family: var(--serif);
  font-variation-settings: "opsz" 18, "WONK" 0, "SOFT" 0;
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--amber); color: var(--bg); }

a { color: var(--teal); text-underline-offset: 0.18em; text-decoration-thickness: from-font; }

:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 2px; }

.skip-link {
  position: absolute; left: 1rem; top: -4rem; z-index: 100;
  min-height: 44px; display: inline-flex; align-items: center;
  padding: 0.6rem 1rem; border-radius: 3px;
  background: var(--amber); color: var(--bg);
  font-family: var(--mono); font-size: 0.85rem;
  transition: top 0.15s var(--ease-out);
}
.skip-link:focus { top: 1rem; }

/* ---------- Sky: fixed atmosphere behind everything ---------- */
.sky {
  position: fixed; inset: 0; z-index: -1;
  overflow: hidden; pointer-events: none;
  background: var(--bg);
}
.sky-warm {
  position: absolute; inset: 0;
  background: radial-gradient(120% 70% at 50% 115%, var(--warm-glow) 0%, transparent 70%);
  opacity: 0;
}
.window {
  position: absolute; top: -10vh; left: 0;
  width: 70vw; height: 130vh;
  display: flex; gap: 2.2vw;
  transform: translateX(-12vw) skewX(-16deg);
  opacity: 0.35;
}
.pane {
  flex: 1;
  background: linear-gradient(180deg, var(--window-a) 0%, var(--window-b) 55%, transparent 100%);
}
.lamp {
  position: absolute; left: 0; top: 0;
  width: 64vmax; height: 64vmax; border-radius: 50%;
  background: radial-gradient(closest-side, var(--lamp) 0%, transparent 100%);
  will-change: transform;
}
html:not(.motion) .lamp { display: none; }
.grain {
  position: absolute; inset: -6vh 0;
  opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 0.95 0 0 0 0 0.9 0 0 0 0 0.82 0 0 0 1 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* ---------- Header ---------- */
.site-header { position: sticky; top: 0; z-index: 10; }
.bar {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding-block: 0.7rem;
  padding-left: var(--gutter); padding-right: var(--gutter-r);
  background: var(--bg);
  border-bottom: 1px solid var(--rule);
}
.wordmark { display: inline-flex; color: var(--text); text-decoration: none; min-height: 44px; align-items: center; }
.wordmark svg { --wm: 124px; width: var(--wm); height: auto; display: block; margin-left: calc(var(--wm) * -0.046); }
.wordmark .wm-ink { fill: currentColor; }
.wordmark .wm-accent { fill: var(--amber); }

/* ---------- The night clock ---------- */
.gauge { display: block; width: 100%; height: auto; }
.g-ring { fill: none; stroke: var(--rule); stroke-width: 1.5; }
.g-ticks line { stroke: var(--text-2); stroke-linecap: round; }
.g-ticks .t-min { stroke-width: 1.5; opacity: 0.5; }
.g-ticks .t-five { stroke-width: 3; }
.g-nums text {
  fill: var(--text-2);
  font-family: var(--serif); font-size: 34px; font-weight: 420;
  font-variation-settings: "opsz" 144, "WONK" 1, "SOFT" 0;
  text-anchor: middle; dominant-baseline: central;
}
.g-track { fill: none; stroke: var(--rule); stroke-width: 4; stroke-linecap: round; }
.g-night {
  fill: none; stroke: var(--amber); stroke-width: 4; stroke-linecap: round;
  stroke-dasharray: 100 100; stroke-dashoffset: 100;
}
.g-dawn { fill: var(--paper); stroke: var(--text-2); stroke-width: 2.5; }
.g-you circle { fill: var(--text); stroke: var(--bg); stroke-width: 3; }
.g-hour line { stroke: var(--text); stroke-width: 7; stroke-linecap: round; }
.g-min line { stroke: var(--amber); stroke-width: 3; stroke-linecap: round; }
.g-hub { fill: var(--bg); stroke: var(--text); stroke-width: 3; }

/* No JS: the arc shows the whole night, so the face still says 3 to dawn. */
html:not(.js) .g-night { stroke-dashoffset: 0; }

.bar-end { display: flex; align-items: center; }
.mini { width: 44px; flex: none; }
.hdr-cta {
  display: none; align-items: center; min-height: 44px; padding: 0.5rem 0.95rem;
  font-family: var(--serif); font-weight: 600; font-size: 0.98rem; text-decoration: none;
  font-variation-settings: "opsz" 18, "WONK" 0;
  color: var(--teal-ink); background: var(--teal); border-radius: 3px;
}
html:not(.js) .hdr-cta, .cta-on .hdr-cta { display: inline-flex; }
html:not(.js) .mini, .cta-on .mini { display: none; }
.subscribe { scroll-margin-top: 5.5rem; }
.mini .g-nums, .mini .t-min, .mini .g-you, .mini .g-track { display: none; }
.mini .g-ring { stroke-width: 8; }
.mini .t-five { stroke-width: 12; }
.mini .g-night { stroke-width: 20; }
.mini .g-dawn { display: none; }
.mini .g-hour line { stroke-width: 24; }
.mini .g-min line { stroke-width: 14; }
.mini .g-hub { display: none; }

.rail { display: flex; justify-content: center; padding-block: 0 3.5rem; }
.gauge-wrap { position: relative; isolation: isolate; width: min(58vw, 15rem); }
.g-read {
  margin: 0.9rem 0 0; text-align: center;
  font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.04em; color: var(--text-2);
  font-variant-numeric: tabular-nums;
}
.g-read-t { color: var(--text); font-weight: 600; }
.js .g-read-to { display: none; }
/* The one canvas: breathing glow + dust behind the big clock (motion only). */
.breath {
  position: absolute; z-index: -1; pointer-events: none;
  left: -12%; top: -12%; width: 124%; height: 124%;
}
.night { overflow-x: clip; }

/* ---------- Stage (mobile first) ---------- */
.stage {
  display: flex; flex-direction: column;
  padding-left: var(--gutter); padding-right: var(--gutter-r);
  max-width: 76rem; margin-inline: auto;
}
.scene-hero { order: 1; }
.rail { order: 2; }
.scene-ladder { order: 3; }
.scene-hero { padding-block: 1.6rem 4.5rem; max-width: 36rem; }

.device-clock {
  margin: 0 0 1.1rem;
  font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.02em;
  color: var(--text-2);
}
.device-clock time { color: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; }

h1 {
  margin: 0 0 1.2rem;
  font-family: var(--serif);
  font-weight: 480;
  font-size: clamp(2.35rem, 8.6vw + 0.2rem, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.006em;
  font-variation-settings: "opsz" 60, "WONK" 0, "SOFT" 50;
  max-width: 13ch;
  text-wrap: balance;
}

.lede {
  margin: 0 0 0.9rem;
  font-size: 1.2rem; line-height: 1.5;
  font-variation-settings: "opsz" 24, "WONK" 0, "SOFT" 0;
  max-width: 32rem;
}
.beat { font-style: normal; color: var(--amber); }
.sub { margin: 0; color: var(--text-2); max-width: 32rem; }

/* ---------- Form ---------- */
form.subscribe { margin-top: 1.8rem; max-width: 32rem; }
.field-label {
  display: block; margin-bottom: 0.45rem;
  font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.02em;
  color: var(--text-2);
}
.field-row { display: flex; flex-direction: column; gap: 0.6rem; }
.field-row input[type="email"] {
  width: 100%; min-height: 52px;
  padding: 0.75rem 0.95rem;
  font: inherit; font-size: 1.05rem;
  color: var(--text); background: var(--field);
  border: 1px solid var(--rule); border-radius: 3px;
}
.field-row input[type="email"]::placeholder { color: var(--text-2); opacity: 0.75; }
.field-row input[type="email"]:focus-visible { border-color: var(--focus); }

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 52px; padding: 0.8rem 1.4rem;
  font-family: var(--serif); font-size: 1.08rem; font-weight: 600;
  font-variation-settings: "opsz" 24, "WONK" 0;
  color: var(--teal-ink); background: var(--teal);
  border: 0; border-radius: 3px; cursor: pointer;
  transition: transform 160ms var(--ease-out), filter 160ms ease;
}
.btn:hover { filter: brightness(1.07); }
.btn:active { transform: scale(0.97); }

.hp-field {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}
/* The promise under the button reads as a sentence, not fine print. */
.form-hint { margin: 0.75rem 0 0; font-family: var(--serif); font-size: 0.98rem; line-height: 1.45; color: var(--text); }
.form-error { margin: 0.75rem 0 0; font-family: var(--mono); font-size: 0.85rem; color: var(--rust); }

/* ---------- Ladder ---------- */
.scene-ladder { padding-block: 1rem 6rem; max-width: 36rem; }
.ladder-wrap { position: relative; }
.ladder-rule {
  position: absolute; left: 0.62rem; top: 0.5rem;
  width: 4px; height: calc(100% - 0.5rem);
  overflow: visible; pointer-events: none;
}
.rule-track { stroke: var(--rule); stroke-width: 2; }
.rule-fill { stroke: var(--amber); stroke-width: 2; transform-box: view-box; transform-origin: 0 0; }
.ladder-item { position: relative; --tick: var(--text-2); }
.ladder-item::before {
  content: ""; position: absolute; left: -1.38rem; top: 0.5rem;
  width: 0.9rem; height: 2px; background: var(--tick);
  transform-origin: 0 50%;
}
.ladder-1 { --tick: var(--rust); }
.ladder-2 { --tick: var(--amber); }
.ladder { list-style: none; margin: 0; padding: 0 0 0 2rem; display: grid; gap: 2.2rem; }
.ladder-item p { margin: 0; line-height: 1.22; }
.ladder-label {
  display: block; margin-bottom: 0.35rem;
  font-family: var(--mono); font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  font-size: 0.8rem;
}
.ladder-1 { font-size: clamp(1.7rem, 6.6vw, 2.6rem); font-variation-settings: "opsz" 40, "WONK" 0, "SOFT" 50; }
.ladder-1 .ladder-label { color: var(--rust); }
.ladder-2 { font-size: clamp(1.35rem, 4.8vw, 1.9rem); font-variation-settings: "opsz" 28, "WONK" 0; }
.ladder-2 .ladder-label { color: var(--amber); }
.ladder-3 { font-size: clamp(1.1rem, 3.6vw, 1.35rem); font-variation-settings: "opsz" 30, "WONK" 0; }
.ladder-3 .ladder-label { color: var(--text-2); }

/* ---------- Dawn ---------- */
.dawn {
  --amber: #8A5A16;
  --rust: #A83E27;
  --bg: var(--dawn-paper);
  --text: var(--ink-on-paper);
  --text-2: var(--ink-2-on-paper);
  --teal: var(--teal-on-paper);
  --teal-ink: #F6F1E6;
  --rule: #D3C6AA;
  --field: var(--dawn-field);
  --focus: #1F6E58;
  background: linear-gradient(180deg, transparent 0, var(--dawn-mid) 11vh, var(--bg) 30vh);
  color: var(--text);
}
.dawn-inner {
  padding-block: 30vh 4rem;
  padding-left: var(--gutter); padding-right: var(--gutter-r);
  max-width: 76rem; margin-inline: auto;
}
.horizon {
  margin: 0 0 1.6rem;
  font-family: var(--mono); font-size: 0.8rem; color: var(--text-2);
  font-variant-numeric: tabular-nums;
}
.dawn-line {
  margin: 0; max-width: 16ch;
  font-weight: 480; font-size: clamp(2rem, 7vw, 3.6rem); line-height: 1.06; letter-spacing: -0.005em;
  font-variation-settings: "opsz" 56, "WONK" 0, "SOFT" 50;
  text-wrap: balance;
}
.dawn form.subscribe { margin-top: 1.6rem; }

.site-footer {
  border-top: 1px solid var(--rule);
  padding-block: 1.4rem calc(1.4rem + env(safe-area-inset-bottom, 0px));
}
.footer-nav {
  display: flex; flex-wrap: wrap; gap: 0.2rem 1.6rem;
  list-style: none; margin: 0 auto; max-width: 76rem;
  padding: 0 var(--gutter-r) 0 var(--gutter);
  font-family: var(--mono); font-size: 0.88rem;
}
.footer-nav a { color: var(--text); display: inline-flex; align-items: center; min-height: 44px; }

/* ---------- Kinetic type (only when JS + motion are allowed) ---------- */
.kin-pending .kin { opacity: 0.3; }
.kin .w { display: inline-block; }
.kin.built .w { animation: word-in 340ms var(--ease-out) both; animation-delay: calc(var(--i, 0) * 46ms); }
@keyframes word-in {
  from { opacity: 0.3; transform: translateY(0.14em); }
  to { opacity: 1; transform: none; }
}
.motion .beat { color: inherit; transition: color 420ms ease; }
.motion .beat.on { color: var(--amber); }
.dawn-line .w { display: inline-block; transition: color 420ms ease; }
.dawn-line.built .w { animation: word-in 340ms var(--ease-out) both; animation-delay: calc(var(--i, 0) * 46ms); }
.dawn-line .w.on { color: var(--amber); }

/* Ladder, live: text is always full colour; the tick lands as the rule reaches it. */
.ladder-live .ladder-item::before { transition: transform 300ms var(--ease-out); }
.ladder-live .ladder-item:not(.on)::before { transform: scaleX(0); }

/* Page-to-page: a short crossfade, the wordmark stays put. */
@view-transition { navigation: auto; }
.wordmark { view-transition-name: wordmark; }
::view-transition-old(root), ::view-transition-new(root) {
  animation-duration: 240ms; animation-timing-function: cubic-bezier(0.23, 1, 0.32, 1);
}

/* ---------- Wider screens ---------- */
@media (min-width: 40rem) {
  .field-row { flex-direction: row; }
  .field-row input[type="email"] { flex: 1; min-width: 0; }
  .btn { flex: none; }
}

@media (min-width: 64rem) {
  body { font-size: 1.125rem; }
  .site-header { position: static; }
  .bar { background: transparent; border-bottom: 0; padding-block: 1.6rem; max-width: 76rem; margin-inline: auto; }
  .wordmark svg { --wm: 150px; }
  .mini, .hdr-cta, html:not(.js) .hdr-cta { display: none; }
  /* Desktop: the same way back to the form, pinned top-right once the hero form is gone. */
  .cta-on .hdr-cta {
    display: inline-flex; position: fixed; z-index: 20;
    top: 1.4rem; right: max(1.25rem, calc((100vw - 76rem) / 2 + 20px));
  }

  .stage {
    display: grid;
    grid-template-columns: minmax(0, 36rem) minmax(0, 1fr);
    column-gap: clamp(3rem, 7vw, 8rem);
  }
  .scene-hero { grid-column: 1; grid-row: 1; padding-block: 3vh 14vh; }
  .scene-ladder { grid-column: 1; grid-row: 2; padding-block: 6vh 26vh; }
  .rail { display: block; grid-column: 2; grid-row: 1 / span 2; padding-block: 0; }
  .gauge-wrap {
    position: sticky; top: max(2rem, calc(50vh - 16rem));
    width: min(30rem, 100%); margin-left: auto;
  }
  .breath { left: -18%; top: -18%; width: 136%; height: 136%; }
  /* Desktop: the ladder holds still while the rule draws (sticky, no pin). */
  .ladder-live .scene-ladder { padding-block: 6vh 18vh; min-height: 125vh; box-sizing: content-box; }
  .ladder-live .ladder-wrap { position: sticky; top: 30vh; }
  .dawn-inner { padding-block: 30vh 7rem; }
}

/* ---------- Reduced motion: nothing moves, atmosphere stays still ---------- */
@media (prefers-reduced-motion: reduce) {
  .btn, .skip-link { transition: none; }
  .btn:active { transform: none; }
  ::view-transition-group(*), ::view-transition-old(*), ::view-transition-new(*) { animation: none; }
}

.nw { white-space: nowrap; }