/*
 * Daylight, landing page, in the Labs family.
 *
 * The design language of johnjayasankar.com and labs.johnjayasankar.com: a
 * porcelain ground with a faint dot grid, forest ink and actions, Inter for
 * reading and IBM Plex Mono for times, values and keys. Daylight keeps its own
 * warm amber, used sparingly. The dark scheme is the family's forest night,
 * because evening is the half of the day the app is for.
 */

/* ---------------------------------------------------------------- type */

/* Self-hosted: the page's Content-Security-Policy allows nothing off-site. */
@font-face {
  font-family: "Inter";
  src: url("assets/fonts/inter-var.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("assets/fonts/ibm-plex-mono-400.woff2") format("woff2");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "IBM Plex Mono";
  src: url("assets/fonts/ibm-plex-mono-500.woff2") format("woff2");
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

/* ---------------------------------------------------------------- tokens */

:root {
  color-scheme: light;

  --bg:            #f8f6f1;          /* porcelain */
  --bg-alt:        #f1efe9;
  --surface:       #ffffff;
  --surface-2:     #f5f3ed;
  --hairline:      rgba(28, 51, 38, 0.09);
  --hairline-firm: rgba(28, 51, 38, 0.16);
  --dots:          rgba(28, 51, 38, 0.06);

  --text:          #0f1712;
  --text-2:        #48524c;
  --text-3:        #5f6862;

  --accent:        #8a4a0b;          /* Daylight's amber, as text or a line */
  --accent-fill:   #de8a2e;          /* amber as a filled background */
  --accent-on-fill:#13241b;          /* text sitting on that fill */
  --accent-soft:   rgba(222, 138, 46, 0.13);
  --accent-line:   rgba(138, 74, 11, 0.32);
  /* A pale sky blue is unreadable as text on a light page, so the moment
     colour is pulled towards the ink before being used for type. The marker
     and dot keep the true colour: they are graphics, not text. */
  --moment-text:   color-mix(in srgb, var(--moment) 42%, #0f1712);
  --warn:          #c07a22;
  --danger:        #9a2f21;          /* removing something, as text */
  --danger-soft:   rgba(154, 47, 33, 0.09);

  /* The family's action and focus colours: forest by day, mint by night. */
  --focus:          #1f6b4a;
  --primary:        linear-gradient(180deg, #2c5a42 0%, #1a3a2a 100%);
  --primary-solid:  #234a36;
  --primary-text:   #ffffff;
  --primary-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.16), 0 1px 2px rgba(15, 23, 18, 0.25),
                    0 10px 24px -12px rgba(19, 36, 27, 0.65);
  --primary-lift:   inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(15, 23, 18, 0.25),
                    0 18px 34px -14px rgba(19, 36, 27, 0.75);
  --sh-1: 0 1px 2px rgba(28, 51, 38, 0.05);
  --sh-2: 0 1px 2px rgba(28, 51, 38, 0.05), 0 14px 32px -14px rgba(28, 51, 38, 0.22);
  --sh-3: 0 1px 2px rgba(28, 51, 38, 0.05), 0 30px 64px -28px rgba(28, 51, 38, 0.32);
  --ease: cubic-bezier(0.32, 0.72, 0, 1);

  --radius:      20px;
  --radius-sm:   14px;
  --wrap:        1120px;
  --wrap-narrow: 760px;
  --nav-h:       60px;

  /* Set from JS as the hero curve is scrubbed. */
  --moment:       #9ebde0;
  --moment-soft:  rgba(158, 189, 224, 0.13);
  --moment-faint: rgba(158, 189, 224, 0.05);

  --font: "Inter", ui-sans-serif, -apple-system, BlinkMacSystemFont, "SF Pro Text",
          "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;

    --bg:            #0b1510;        /* forest night */
    --bg-alt:        #0f1c15;
    --surface:       #13241b;
    --surface-2:     #1a3024;
    --hairline:      rgba(240, 247, 243, 0.09);
    --hairline-firm: rgba(240, 247, 243, 0.17);
    --dots:          rgba(240, 247, 243, 0.055);

    --text:          #f0f7f3;
    --text-2:        #bccac2;
    --text-3:        #96a69d;

    --accent:        #f4aa5c;
    --accent-fill:   #f4aa5c;
    --accent-on-fill:#13241b;
    --accent-soft:   rgba(244, 170, 92, 0.13);
    --accent-line:   rgba(244, 170, 92, 0.42);
    --moment-text:   var(--moment);
    --warn:          #f4aa5c;
    --danger:        #f3a293;
    --danger-soft:   rgba(243, 162, 147, 0.13);

    --focus:          #6ee7b7;
    --primary:        linear-gradient(180deg, #c2f8de 0%, #82ecc2 100%);
    --primary-solid:  #a2f2d0;
    --primary-text:   #13241b;
    --primary-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.6), 0 12px 28px -14px rgba(110, 231, 183, 0.5);
    --primary-lift:   inset 0 1px 0 rgba(255, 255, 255, 0.6), 0 16px 32px -12px rgba(110, 231, 183, 0.62);
    --sh-1: 0 1px 2px rgba(0, 0, 0, 0.28);
    --sh-2: 0 1px 2px rgba(0, 0, 0, 0.28), 0 18px 40px -18px rgba(0, 0, 0, 0.6);
    --sh-3: 0 1px 2px rgba(0, 0, 0, 0.28), 0 30px 72px -26px rgba(0, 0, 0, 0.72);
  }
}

/* ---------------------------------------------------------------- base */

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

/* `[hidden]` is only a UA-stylesheet `display: none`, so anything that sets
   `display` beats it. Every component here that sets display would otherwise
   have to remember; this makes the attribute mean what it says. */
[hidden] { display: none !important; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 12px); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

body {
  margin: 0;
  background-color: var(--bg);
  background-image: radial-gradient(circle at 1px 1px, var(--dots) 1px, transparent 1.2px);
  background-size: 24px 24px;
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -0.011em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { line-height: 1.14; letter-spacing: -0.02em; margin: 0; font-weight: 500; }
h1 {
  font-size: clamp(2.6rem, 5.8vw, 4.6rem); font-weight: 400;
  line-height: 1.02; letter-spacing: -0.047em; text-wrap: balance;
}
h2 {
  font-size: clamp(1.95rem, 3.8vw, 3rem); font-weight: 400;
  line-height: 1.06; letter-spacing: -0.04em; text-wrap: balance;
}
h3 { font-size: 1.04rem; letter-spacing: -0.016em; }
p  { margin: 0; }

a { color: inherit; text-decoration-color: var(--hairline-firm); text-underline-offset: 3px; }
a:hover { text-decoration-color: var(--focus); }

code { font-family: var(--mono); font-size: 0.84em; letter-spacing: 0; overflow-wrap: anywhere; }
p, li, figcaption, blockquote { overflow-wrap: break-word; }

::selection { background: rgba(110, 231, 183, 0.45); color: var(--text); }

:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 3px;
  border-radius: 6px;
}

.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: 24px; }
@media (max-width: 480px) { .wrap { padding-inline: 18px; } }
.wrap.narrow { max-width: var(--wrap-narrow); }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip {
  position: absolute; left: -999px; top: 12px; z-index: 100;
  padding: 10px 16px; border-radius: 999px;
  background-color: var(--primary-solid); background-image: var(--primary); color: var(--primary-text);
  font-size: 0.875rem; font-weight: 500; text-decoration: none;
}
.skip:focus { left: 12px; }

/* The interactive curve is the one part that genuinely needs scripting.
   `no-js` is on <html> in the markup and removed by app.js on its first line,
   so it hides only when scripting really is unavailable. Done with a class
   rather than an inline <noscript><style>, which keeps the page's
   Content-Security-Policy free of 'unsafe-inline'. */
.no-js .hero-demo { display: none; }
/* One of these two is always the true one. */
.try-note-fallback { display: none; }
.no-js .try-note-fallback { display: block; }
.no-js .try-note:not(.try-note-fallback) { display: none; }

/* Revealing is an enhancement, never a precondition for reading the page.
   The hidden state is scoped to a class that JS adds only once it is certain
   it can take the elements back out again, so a script error, a blocked
   script or a missing IntersectionObserver leaves everything visible rather
   than hiding the entire page below the fold. */
.js-reveal [data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .6s var(--ease), transform .8s var(--ease);
}
.js-reveal [data-reveal].is-visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .js-reveal [data-reveal] { opacity: 1; transform: none; transition: none; }
}

/* ---------------------------------------------------------------- nav */

.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  -webkit-backdrop-filter: saturate(160%) blur(22px);
  backdrop-filter: saturate(160%) blur(22px);
  box-shadow: 0 1px 0 var(--hairline);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  min-height: var(--nav-h); gap: 12px; flex-wrap: nowrap;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 15.5px; font-weight: 600; letter-spacing: -0.022em;
  text-decoration: none; min-width: 0; flex-shrink: 0;
}
.brand img { border-radius: 7px; }
.nav nav {
  display: flex; align-items: center; gap: 2px; font-size: 0.875rem;
  color: var(--text-2); min-width: 0; flex-shrink: 1;
}
.nav nav a {
  display: inline-flex; align-items: center; height: 36px; padding: 0 13px;
  border-radius: 999px; font-weight: 500; letter-spacing: -0.01em;
  text-decoration: none; transition: color .2s ease, background-color .2s ease;
}
.nav nav a:hover { color: var(--text); background: color-mix(in srgb, var(--text) 6%, transparent); }
.nav-cta { font-weight: 500; white-space: nowrap; }
.nav nav a.nav-cta {
  margin-left: 8px; padding: 0 16px;
  color: var(--primary-text); background-color: var(--primary-solid); background-image: var(--primary); box-shadow: var(--primary-shadow);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.nav-cta:hover { text-decoration: none; }
.nav nav a.nav-cta:hover {
  color: var(--primary-text); background-color: var(--primary-solid); background-image: var(--primary);
  transform: translateY(-1px); box-shadow: var(--primary-lift);
}
@media (max-width: 720px) {
  .nav nav a:not(.nav-cta) { display: none; }
  .nav nav { gap: 12px; }
}

/* ---------------------------------------------------------------- hero */

.hero { padding: clamp(56px, 9vw, 112px) 0 clamp(28px, 5vw, 56px); }
.hero-head { max-width: 760px; }
.hero-icon {
  border-radius: 24px; margin-bottom: 28px; display: block;
  filter: drop-shadow(0 16px 24px rgba(15, 42, 29, 0.26));
}
.lede {
  margin-top: 22px; font-size: clamp(1.05rem, 2vw, 1.22rem); line-height: 1.58;
  color: var(--text-2); max-width: 58ch;
}

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; align-items: stretch; }
.cta-note { margin-top: 14px; font-size: 0.84rem; color: var(--text-3); }
.try-note {
  margin-top: 28px; font-size: 0.9rem; color: var(--text-2);
  max-width: 46ch; padding-left: 14px; border-left: 2px solid var(--accent-line);
}
.cta-note a { color: var(--text-2); }

.button {
  display: inline-flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px; padding: 12px 26px; border-radius: 999px;
  font-size: 0.94rem; font-weight: 500; letter-spacing: -0.012em; text-decoration: none;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease),
              background-color .2s ease, border-color .2s ease, color .2s ease;
}
.button:hover { transform: translateY(-1px); }
.button:active { transform: translateY(1px) scale(0.985); }
.button.primary { background-color: var(--primary-solid); background-image: var(--primary); color: var(--primary-text); box-shadow: var(--primary-shadow); }
.button.primary:hover { box-shadow: var(--primary-lift); }
.button.ghost {
  border-color: var(--hairline-firm); color: var(--text);
  background: var(--surface); box-shadow: var(--sh-1);
}
.button.ghost:hover {
  border-color: color-mix(in srgb, var(--text) 30%, transparent);
  box-shadow: 0 10px 22px -12px rgba(28, 51, 38, 0.32);
}
.button-sub { font-size: 0.72rem; font-weight: 400; opacity: 0.8; letter-spacing: 0; }
.button.tiny {
  flex-direction: row; padding: 5px 12px; font-size: 0.78rem;
  border-color: var(--hairline-firm); background: var(--surface); color: var(--text-2);
}
.button.tiny:hover { background: var(--surface-2); color: var(--text); }
.button.tiny.is-done { color: var(--accent); border-color: var(--accent-line); }

/* ------------------------------------------------------------ hero demo */

.hero-demo {
  /* --moment is set from JS here, so --moment-text has to be re-derived in
     the same scope or it would keep the page-level default. */
  --moment-text: color-mix(in srgb, var(--moment) 42%, #0f1712);
  margin: clamp(40px, 6vw, 72px) 0 0; padding: 22px 22px 18px;
  max-width: 100%; min-width: 0;
  background: linear-gradient(180deg, var(--moment-faint), transparent 60%), var(--surface);
  border: 1px solid var(--hairline); border-radius: 24px;
  box-shadow: var(--sh-2);
  transition: background .55s ease;
}
.demo-head {
  display: flex; flex-wrap: wrap; gap: 12px 20px;
  align-items: baseline; justify-content: space-between; margin-bottom: 14px;
  min-width: 0;
}
.demo-head > div { min-width: 0; }
.demo-title { display: block; font-weight: 500; font-size: 0.98rem; letter-spacing: -0.016em; }
.demo-sub { display: block; font-size: 0.8rem; color: var(--text-3); margin-top: 2px; }

.readout {
  display: inline-flex; align-items: baseline; gap: 8px; flex-wrap: wrap;
  padding: 6px 13px; border-radius: 999px;
  background: var(--moment-soft); border: 1px solid var(--hairline);
  font-variant-numeric: tabular-nums; font-size: 0.86rem;
  transition: background .55s ease;
}
.read-time { font-family: var(--mono); font-weight: 500; letter-spacing: 0; color: var(--moment-text); transition: color .55s ease; }
.read-name { color: var(--text); }
.read-value { color: var(--text-2); }
.read-sep { color: var(--text-3); }

#curve { display: block; width: 100%; height: clamp(180px, 26vw, 260px); overflow: visible; }
.curve-line { fill: none; stroke: var(--text); stroke-opacity: 0.5; stroke-width: 1.6; }
.curve-tick { stroke: var(--hairline-firm); stroke-width: 1; }
.curve-label { fill: var(--text-3); font-size: 11px; font-family: var(--font); }
.curve-anchor { stroke: var(--text); stroke-opacity: 0.14; stroke-width: 1; stroke-dasharray: 3 4; }
.curve-marker { stroke: var(--moment); stroke-width: 2; transition: stroke .55s ease; }
.curve-marker-dot { fill: var(--moment); transition: fill .55s ease; }

.scrub-row { display: flex; align-items: center; gap: 12px; margin-top: 6px; }
/* One slider, used everywhere. Each instance only supplies its own --track,
   so a control added later cannot arrive looking like a different product. */
#scrub, #year-scrub, .edit-control input[type="range"] {
  appearance: none; height: 22px; background: transparent; cursor: grab;
  --track: var(--hairline-firm, rgba(28, 51, 38, 0.16));
}
#scrub, #year-scrub { flex: 1; }
#scrub:active, #year-scrub:active, .edit-control input[type="range"]:active { cursor: grabbing; }
#scrub:focus-visible, #year-scrub:focus-visible,
.edit-control input[type="range"]:focus-visible {
  outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 6px;
}
#scrub::-webkit-slider-runnable-track,
#year-scrub::-webkit-slider-runnable-track,
.edit-control input[type="range"]::-webkit-slider-runnable-track {
  height: 4px; border-radius: 2px; background: var(--track);
}
#scrub::-webkit-slider-thumb,
#year-scrub::-webkit-slider-thumb,
.edit-control input[type="range"]::-webkit-slider-thumb {
  appearance: none; width: 18px; height: 18px; margin-top: -7px;
  border-radius: 50%; background: #fff; border: 1px solid rgba(15, 23, 18, 0.18);
  box-shadow: 0 1px 2px rgba(15, 23, 18, 0.2), 0 4px 10px -2px rgba(15, 23, 18, 0.28);
}
#scrub::-moz-range-track,
#year-scrub::-moz-range-track,
.edit-control input[type="range"]::-moz-range-track {
  height: 4px; border-radius: 2px; background: var(--track);
}
#scrub::-moz-range-thumb,
#year-scrub::-moz-range-thumb,
.edit-control input[type="range"]::-moz-range-thumb {
  width: 17px; height: 17px; border-radius: 50%; background: #fff;
  border: 1px solid rgba(15, 23, 18, 0.18);
  box-shadow: 0 1px 2px rgba(15, 23, 18, 0.2), 0 4px 10px -2px rgba(15, 23, 18, 0.28);
}
/* Painted from the schedule actually on screen, see setTrackGradient(). */
#scrub { --track: var(--day-gradient, linear-gradient(90deg, #9ebde0, #f08c3d)); }
.demo-foot { margin-top: 10px; font-size: 0.78rem; color: var(--text-3); max-width: 62ch; }

/* ---------------------------------------------------------------- shots */

.shot-section { padding: clamp(32px, 5vw, 64px) 0; }
.window-frame {
  border-radius: var(--radius); overflow: hidden;
  border: 1px solid var(--hairline);
  background: var(--surface);
  box-shadow: var(--sh-3);
}
.window-bar {
  display: flex; align-items: center; gap: 7px; padding: 11px 14px;
  background: var(--surface-2); border-bottom: 1px solid var(--hairline);
}
.dot { width: 11px; height: 11px; border-radius: 50%; display: block; }
.dot.red { background: #ff5f57; } .dot.amber { background: #febc2e; } .dot.green { background: #28c840; }
.window-frame img { display: block; width: 100%; height: auto; }

/* ---------------------------------------------------------------- sections */

.section { padding: clamp(64px, 9vw, 120px) 0; }
.section.alt { background: var(--bg-alt); border-block: 1px solid var(--hairline); }
.section-lede { margin-top: 16px; color: var(--text-2); max-width: 60ch; font-size: 1.06rem; line-height: 1.6; }

/* ------------------------------------------------- the precedence ladder */

.ladder-demo {
  margin-top: 36px; padding: clamp(20px, 2.6vw, 30px);
  background: var(--surface); border: 1px solid var(--hairline);
  border-radius: var(--radius); box-shadow: var(--sh-2);
}
.ladder-title { font-size: 1.06rem; margin: 0; }
.ladder-lede {
  margin: 8px 0 0; color: var(--text-2); font-size: 0.94rem;
  line-height: 1.6; max-width: 68ch;
}
.ladder-body {
  display: grid; gap: clamp(16px, 2.4vw, 26px); margin-top: 22px;
  grid-template-columns: minmax(min(340px, 100%), 1.25fr) minmax(min(260px, 100%), 1fr);
  align-items: start;
}
@media (max-width: 820px) {
  /* Stacked, the outcome goes first. Below the ladder it would be off-screen
     for anyone toggling the rows near the top, which is most of them, and a
     control whose effect you cannot see is not much of a demonstration. */
  .ladder-body { grid-template-columns: 1fr; }
  .ladder-out { order: -1; }
}

.ladder-column { display: grid; gap: 7px; }
/* The order is the whole idea, so it is stated at both ends rather than left
   to be inferred from the paragraph above. */
.ladder-edge {
  margin: 0; font-family: var(--mono); font-size: 0.68rem; color: var(--text-3);
  letter-spacing: 0.02em; padding-left: 10px;
  display: flex; align-items: center; gap: 8px;
}
.ladder-edge::after {
  content: ''; flex: 1; height: 1px; background: var(--hairline);
}
.ladder { list-style: none; margin: 0; padding: 0; display: grid; gap: 3px; }
.ladder-row label {
  display: grid; align-items: baseline; gap: 3px 10px;
  grid-template-columns: auto 1fr auto;
  padding: 9px 11px; border-radius: 12px; cursor: pointer;
  border: 1px solid transparent;
  transition: background-color 130ms ease, border-color 130ms ease;
}
.ladder-row label:hover { background: var(--surface-2); }
.ladder-row input { margin: 0; accent-color: var(--focus); grid-column: 1; grid-row: 1; }
.ladder-row input:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.ladder-main {
  grid-column: 2; grid-row: 1;
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 3px 8px;
}
.ladder-name { font-size: 0.9rem; color: var(--text); font-weight: 500; }
.ladder-says { font-size: 0.78rem; color: var(--text-2); }
.ladder-note {
  grid-column: 2 / -1; grid-row: 2;
  font-size: 0.74rem; color: var(--text-3);
}
.ladder-wins {
  grid-column: 3; grid-row: 1; justify-self: end;
  font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.02em;
  font-weight: 500; color: var(--accent); background: var(--accent-soft);
  border: 1px solid var(--accent-line);
  padding: 2px 9px; border-radius: 999px; white-space: nowrap;
}
.ladder-wins:empty { display: none; }
/* A layer that is switched off is still worth seeing: the ladder is the point,
   not just the layers currently in it. */
.ladder-row.is-off .ladder-name,
.ladder-row.is-off .ladder-says,
.ladder-row.is-off .ladder-note { opacity: 0.62; }
.ladder-row.is-winning label { background: var(--surface-2); border-color: var(--accent-line); }

/* The ladder is a fixed six rows, so centring the outcome beside it balances
   the pair instead of leaving the right column hanging from the top. */
.ladder-out { display: flex; flex-direction: column; gap: 12px; align-self: center; }
@media (max-width: 820px) { .ladder-out { align-self: stretch; } }
.ladder-result { display: flex; align-items: flex-start; gap: 12px; }
.ladder-swatch {
  width: 46px; height: 46px; border-radius: 12px; flex: none;
  border: 1px solid var(--hairline-firm);
  transition: background-color 220ms ease;
}
.ladder-facts { display: grid; gap: 3px; font-size: 0.8rem; }
.ladder-facts > div { display: flex; gap: 8px; align-items: baseline; }
.lf-what { color: var(--text-3); min-width: 68px; }
.lf-value { color: var(--text); font-variant-numeric: tabular-nums; font-family: var(--mono); font-size: 0.76rem; }
.lf-from { color: var(--text-2); }
.ladder-say { border-left-color: var(--accent); }
.ladder-say p { margin: 0; }
.ladder-foot { margin: 0; font-size: 0.76rem; color: var(--text-3); line-height: 1.55; }

@media (prefers-reduced-motion: reduce) {
  .ladder-row label, .ladder-swatch { transition: none; }
}

blockquote {
  margin: 0; padding: 16px 18px; border-radius: var(--radius-sm);
  background: var(--surface); border: 1px solid var(--hairline);
  border-left: 3px solid var(--accent-line);
  font-size: 0.96rem; color: var(--text);
}
blockquote.warn { border-left-color: var(--warn); color: var(--text-2); }

.how-grid, .feature-grid {
  display: grid; gap: 22px; margin-top: 44px;
  grid-template-columns: repeat(auto-fit, minmax(min(280px, 100%), 1fr));
}
.how-grid p, .feature-grid p { margin-top: 10px; color: var(--text-2); font-size: 0.94rem; }
.feature-grid article {
  padding: 24px; background: var(--surface); border: 1px solid var(--hairline);
  border-radius: var(--radius); box-shadow: var(--sh-1);
}

.shot-pair {
  display: grid; gap: 22px; margin-top: 48px;
  grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr));
}
.shot-pair figure { margin: 0; min-width: 0; }
.shot-pair img {
  width: 100%; height: auto; display: block; border-radius: var(--radius-sm);
  border: 1px solid var(--hairline); box-shadow: var(--sh-2);
}
.shot-pair figcaption { margin-top: 12px; font-size: 0.84rem; color: var(--text-3); }

.menubar-wrap {
  display: grid; gap: clamp(28px, 5vw, 56px); align-items: center;
  grid-template-columns: minmax(min(320px, 100%), 1fr) minmax(min(240px, 100%), 286px);
}
.menubar-points { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 10px; }
.menubar-points li {
  position: relative; padding-left: 20px; font-size: 0.93rem; color: var(--text-2);
}
.menubar-points li::before {
  content: ""; position: absolute; left: 2px; top: 0.62em;
  width: 6px; height: 6px; border-radius: 50%; background: var(--accent);
  opacity: 0.8;
}
.menubar-points strong { color: var(--text); font-weight: 600; }
@media (max-width: 780px) { .menubar-wrap { grid-template-columns: 1fr; } }
.menubar-copy { min-width: 0; }
.menubar-note { margin-top: 16px; font-size: 0.9rem; color: var(--text-2); }
.menubar-shot { margin: 0; min-width: 0; justify-self: center; }
.menubar-shot img {
  width: 100%; max-width: 300px; height: auto; display: block;
  border-radius: var(--radius); border: 1px solid var(--hairline);
  box-shadow: var(--sh-3);
}

.claims { margin: 30px 0 0; padding: 0; list-style: none; display: grid; gap: 12px; }
.claims li {
  padding-left: 22px; position: relative; color: var(--text-2); font-size: 0.97rem;
}
.claims li::before {
  content: "—"; position: absolute; left: 0; color: var(--text-3);
}
.claims strong { color: var(--text); font-weight: 600; }
.footnote { margin-top: 24px; font-size: 0.85rem; color: var(--text-3); }

.privacy-grid {
  display: grid; gap: 10px 26px; margin: 28px 0 24px;
  grid-template-columns: repeat(auto-fit, minmax(min(240px, 100%), 1fr));
  font-size: 0.96rem; color: var(--text-2);
}
.tick { color: var(--text-3); margin-right: 8px; }
.privacy-grid + p { color: var(--text-2); font-size: 0.94rem; }

/* ---------------------------------------------------------------- download */

.download-card {
  margin-top: 32px; padding: 24px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--hairline);
  box-shadow: var(--sh-2);
}
.download-main { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; min-width: 0; }
.download-main img { border-radius: 16px; }
.download-main > div { flex: 1; min-width: 180px; }
.download-main .meta { font-size: 0.84rem; color: var(--text-3); margin-top: 3px; }
.checksum {
  margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--hairline);
  font-size: 0.74rem; color: var(--text-3);
  overflow-wrap: anywhere; word-break: break-word;
}

.callout {
  margin-top: 22px; padding: 22px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--hairline);
  border-left: 3px solid var(--warn);
}
.callout.muted { border-left-color: var(--hairline-firm); }
.callout p, .callout li { color: var(--text-2); font-size: 0.94rem; margin-top: 10px; }
.callout ol { margin: 12px 0 0; padding-left: 20px; }
.callout li { margin-top: 12px; }
.callout strong { color: var(--text); }

.code-row {
  display: flex; align-items: center; gap: 10px; margin-top: 10px;
  padding: 9px 10px 9px 14px; border-radius: 12px;
  background: var(--bg); border: 1px solid var(--hairline);
  max-width: 100%; min-width: 0;
}
/* The command scrolls inside its own box rather than widening the page. */
.code-row code {
  flex: 1 1 auto; min-width: 0; white-space: nowrap; color: var(--text);
  overflow-x: auto; -webkit-overflow-scrolling: touch;
}
.code-row .button { flex: 0 0 auto; }

.source-card {
  margin-top: 22px; padding: 22px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--hairline);
}
.source-card p { color: var(--text-2); font-size: 0.94rem; margin-top: 8px; }
.source-card .meta { font-size: 0.84rem; color: var(--text-3); margin-top: 14px; }

.platform-note {
  margin: 0; padding: 14px 24px; text-align: center;
  background: var(--accent-soft); color: var(--text-2); font-size: 0.88rem;
}

/* ---------------------------------------------------------------- footer */

.footer { border-top: 1px solid var(--hairline); padding: 48px 0 60px; background: var(--bg-alt); }
.footer-inner { display: flex; justify-content: space-between; gap: 26px; flex-wrap: wrap; }
.brand-small { font-weight: 600; letter-spacing: -0.022em; }
.footer .meta { font-size: 0.86rem; color: var(--text-3); margin-top: 4px; max-width: 42ch; }
.footer-labs { margin-top: 10px; font-size: 0.86rem; color: var(--text-2); max-width: 46ch; }
.footer-labs a { color: var(--text); text-decoration: underline; text-decoration-color: var(--hairline-firm); }
.footer-labs a:hover { text-decoration-color: var(--focus); }
.footer nav { display: flex; gap: 20px; font-size: 0.88rem; color: var(--text-2); align-items: flex-start; flex-wrap: wrap; }
.footer nav a { text-decoration: none; }
.footer nav a:hover { color: var(--text); }
.footer-legal { margin-top: 32px; padding-top: 22px; border-top: 1px solid var(--hairline); }
.footer-legal p { font-size: 0.78rem; color: var(--text-3); max-width: 78ch; }
.footer-legal p + p { margin-top: 8px; }



/* ------------------------------------------------------------ the demo
   The hero demo is the page's argument: it runs the app's real engine, so it
   is built as a small instrument rather than an illustration. */

.demo-controls {
  display: flex; flex-wrap: wrap; gap: 12px 18px;
  align-items: center; justify-content: space-between;
  padding-bottom: 16px; margin-bottom: 16px;
  border-bottom: 1px solid var(--hairline);
}

.demo-presets { display: flex; flex-wrap: wrap; gap: 6px; }
.preset-chip {
  appearance: none; cursor: pointer;
  font: inherit; font-size: 0.83rem; font-weight: 500;
  padding: 6px 14px; border-radius: 999px;
  color: var(--text-2); background: var(--surface);
  border: 1px solid var(--hairline-firm);
  transition: background .18s ease, color .18s ease, border-color .18s ease;
}
.preset-chip:hover { color: var(--text); background: var(--surface-2); }
.preset-chip.is-active {
  color: var(--accent); background: var(--accent-soft); border-color: var(--accent-line);
}

.demo-place { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; min-width: 0; }
.city-select {
  appearance: none; font: inherit; font-size: 0.83rem;
  padding: 6px 30px 6px 13px; border-radius: 999px;
  color: var(--text); background-color: var(--surface);
  border: 1px solid var(--hairline-firm); cursor: pointer;
  max-width: 220px; text-overflow: ellipsis;
  background-image: linear-gradient(45deg, transparent 50%, currentColor 50%),
                    linear-gradient(135deg, currentColor 50%, transparent 50%);
  background-position: calc(100% - 15px) 50%, calc(100% - 11px) 50%;
  background-size: 4px 4px, 4px 4px;
  background-repeat: no-repeat;
}
.city-select:hover { border-color: var(--accent-line); }
/* When a sun-following schedule is picked and no city is set, the control that
   would fix that says so instead of sitting there inert. */
.demo-place.is-needed .city-select {
  border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft);
}
.sun-readout {
  font-family: var(--mono); font-size: 0.74rem; color: var(--text-2); letter-spacing: 0;
  font-variant-numeric: tabular-nums; white-space: nowrap;
}

.demo-body {
  display: grid; gap: clamp(16px, 3vw, 28px);
  grid-template-columns: minmax(min(420px, 100%), 1fr) minmax(min(230px, 100%), 264px);
  align-items: start;
}
@media (max-width: 860px) {
  .demo-body { grid-template-columns: 1fr; }
  /* Stacked, the preview is the most persuasive thing here and belongs next to
     the curve it illustrates, not underneath a table of numbers. The chart is
     split so the schedule's step list follows both. */
  .demo-chart { display: contents; }
  .demo-chart > .demo-head { order: 1; }
  .demo-chart > #curve { order: 2; }
  .demo-chart > .scrub-row { order: 3; }
  /* Stacked, the rail's two halves belong in different places: the preview
     next to the curve it illustrates, the actions after the list you edit. */
  .demo-rail { display: contents; }
  .demo-preview { order: 4; margin-top: 4px; }
  .demo-rail > .take-it { order: 7; margin-top: 0; }
  .demo-chart > .anchor-list { order: 5; }
  /* These follow the list they belong to. Without an explicit order they take
     0 and land above the chart, which is where they were until this was
     noticed. */
  .demo-chart > .editor-hint { order: 6; }
  .demo-chart > #curve-desc { order: 0; }
}

/* Wide enough for two columns, the editor's column grows far taller than the
   preview's, up to three times with a step open. Rather than leave a void,
   the preview follows: while a warmth slider is being dragged, the thing it
   changes stays on screen. */
@media (min-width: 861px) {
  .demo-rail {
    position: sticky;
    top: calc(var(--nav-h) + clamp(12px, 2vw, 24px));
    align-self: start;
  }
}
@media (prefers-reduced-motion: reduce) {
  /* Sticky is not motion, but it does move relative to the page; someone who
     has asked for less of that is better served by it staying put. */
  .demo-rail { position: static; }
}
.demo-chart, .demo-preview, .demo-rail { min-width: 0; }

.anchor-list {
  list-style: none; margin: 14px 0 0; padding: 0;
  display: grid; gap: 2px;
  max-width: 460px;
}
.anchor-row { border-radius: 10px; }
.anchor-row.is-merged .a-time,
.anchor-row.is-merged .a-name { opacity: 0.6; }

/* The row is the summary and the control that opens the editor, so it has to
   read as a line of a list and behave as a button. */
.anchor-head {
  width: 100%; text-align: left; font: inherit; color: inherit;
  background: none; border: 0; cursor: pointer;
  display: grid; align-items: baseline; gap: 4px 10px;
  grid-template-columns: 46px 1fr auto 14px;
  font-size: 0.8rem; padding: 6px 9px; border-radius: 10px;
  transition: background-color 120ms ease;
}
.anchor-head:hover { background: var(--surface-2); }
.anchor-head:focus-visible { outline: 2px solid var(--focus); outline-offset: 1px; }
.anchor-head[aria-expanded="true"] { background: var(--surface-2); }

.anchor-head .a-time {
  color: var(--text-2); font-variant-numeric: tabular-nums;
  font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0;
}
.anchor-head .a-name { color: var(--text); }
.anchor-head .a-val {
  color: var(--text-2); font-variant-numeric: tabular-nums; font-size: 0.74rem;
}
.anchor-head .a-note {
  grid-column: 2 / -1; color: var(--text-3); font-size: 0.72rem; margin-top: -2px;
}
.anchor-head .a-note:empty { display: none; }

.a-chevron {
  grid-row: 1; grid-column: 4; align-self: center;
  width: 8px; height: 8px; border-right: 1.5px solid var(--text-3);
  border-bottom: 1.5px solid var(--text-3); border-radius: 1px;
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 160ms var(--ease);
}
.anchor-head[aria-expanded="true"] .a-chevron {
  transform: rotate(225deg) translate(-1px, -1px);
}

/* -------------------------------------------------- editing one step */

.anchor-edit {
  display: grid; gap: 11px;
  padding: 13px 12px 15px; margin: 2px 0 6px;
  background: var(--surface-2); border-radius: 14px;
  border: 1px solid var(--hairline);
}
.edit-control {
  display: grid; grid-template-columns: 1fr auto; align-items: baseline;
  gap: 2px 10px;
}
.ec-label { font-size: 0.76rem; color: var(--text-2); }
.ec-value {
  font-size: 0.76rem; color: var(--text); font-variant-numeric: tabular-nums;
  font-family: var(--mono); letter-spacing: 0;
}
.edit-control input[type="range"] { grid-column: 1 / -1; width: 100%; margin: 3px 0 0; }
.ec-hint { grid-column: 1 / -1; font-size: 0.7rem; color: var(--text-3); }

.edit-name { grid-template-columns: 1fr; gap: 4px; }
.ec-text {
  font: inherit; font-size: 0.82rem; color: var(--text);
  background: var(--surface); border: 1px solid var(--hairline-firm, rgba(28, 51, 38, 0.16));
  border-radius: 10px; padding: 6px 10px; width: 100%;
}
.ec-text:focus-visible { outline: 2px solid var(--focus); outline-offset: 1px; }

.edit-step-foot {
  display: flex; justify-content: flex-end;
  padding-top: 2px; margin-top: 1px;
  border-top: 1px solid var(--hairline); padding-block-start: 11px;
}
.button.danger { color: var(--danger); }
.button.danger:hover:not(:disabled) {
  background: var(--danger-soft);
  color: var(--danger);
}
.button:disabled { opacity: 0.45; cursor: not-allowed; }

.anchor-add { margin-top: 8px; }
.anchor-add .button { width: 100%; justify-content: center; }

.demo-unavailable {
  margin: 0; padding: 12px 14px; border-radius: 12px;
  border: 1px solid var(--hairline-firm, rgba(28, 51, 38, 0.16));
  background: var(--surface-2); color: var(--text-2);
  font-size: 0.82rem; line-height: 1.55; max-width: 62ch;
}

.editor-hint {
  margin: 10px 0 0; font-size: 0.74rem; color: var(--text-3);
  max-width: 44ch; line-height: 1.5;
}

/* The actions sit in the rail beside the preview rather than at the foot of a
   column that is now nine hundred pixels tall: after building a schedule, the
   way to keep it should not be somewhere you have to go looking. */
.take-it {
  display: flex; flex-direction: column; gap: 8px;
  margin-top: 18px; padding-top: 16px;
  border-top: 1px solid var(--hairline);
}
.take-note {
  margin: 0; font-size: 0.74rem; line-height: 1.5; color: var(--text-3);
}
.take-note strong { color: var(--text-2); font-weight: 500; }
.take-name { display: grid; gap: 3px; }
.take-name .ec-label { font-size: 0.74rem; color: var(--text-3); }
.editor-actions { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 2px; }
.editor-actions .button { flex: 1 1 auto; justify-content: center; }
/* The download is the one that leads somewhere, so it carries a little weight
   without competing with the page's own download button. */
.button.primary-quiet {
  border-color: var(--accent-line); color: var(--accent); background: var(--accent-soft);
}
.button.primary-quiet:hover { background: color-mix(in srgb, var(--accent) 20%, transparent); color: var(--accent); }
.editor-note {
  margin: 4px 0 0; font-size: 0.74rem; line-height: 1.5;
  padding: 9px 11px; border-radius: 10px; border: 1px solid var(--hairline);
  background: var(--surface-2); color: var(--text-2);
}
.editor-note.is-done { border-color: var(--accent); }
.share-field { margin-top: 8px; font-size: 0.72rem; font-family: var(--mono); }
.editor-note.is-problem { border-color: var(--warn); }
.editor-note strong { color: var(--text); font-weight: 600; }

/* A 30px row is comfortable with a mouse and mean with a thumb. */
@media (pointer: coarse) {
  .anchor-head { padding-top: 9px; padding-bottom: 9px; }
  .edit-control input[type="range"] { height: 30px; }
}

@media (prefers-reduced-motion: reduce) {
  .a-chevron, .anchor-head { transition: none; }
}

/* ------------------------------------------------- the warmth preview */

.demo-preview { display: flex; flex-direction: column; gap: 8px; }
.preview-label {
  font-family: var(--mono); font-size: 0.68rem; font-weight: 500; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text-2);
}
.preview-screen {
  position: relative; border-radius: 14px; overflow: hidden;
  border: 1px solid var(--hairline-firm);
  /* A light surface, because that is what most of a screen is, and it is where
     a colour shift is most visible. */
  background: #f4f5f7;
  isolation: isolate;
}
.preview-titlebar {
  display: flex; gap: 5px; padding: 8px 10px;
  background: #e6e8ec; border-bottom: 1px solid rgba(0,0,0,0.08);
}
.preview-titlebar i { width: 8px; height: 8px; border-radius: 50%; background: #c3c7ce; }
.preview-inner { padding: 12px; }
.preview-h { margin: 0; font-size: 0.94rem; font-weight: 600; letter-spacing: -0.016em; color: #16181d; }
.preview-p { margin: 6px 0 0; font-size: 0.76rem; line-height: 1.5; color: #4a5059; }
.preview-swatches { display: flex; gap: 5px; margin-top: 11px; }
.preview-swatches span {
  flex: 1; height: 22px; border-radius: 5px;
  border: 1px solid rgba(0,0,0,0.10);
}
/* The six sample colours live here rather than in style attributes, which the
   page's Content-Security-Policy (no 'unsafe-inline') refuses to apply. */
.preview-swatches span:nth-child(1) { background: #ffffff; }
.preview-swatches span:nth-child(2) { background: #c7ccd6; }
.preview-swatches span:nth-child(3) { background: #5b8dd6; }
.preview-swatches span:nth-child(4) { background: #4fb477; }
.preview-swatches span:nth-child(5) { background: #d8574b; }
.preview-swatches span:nth-child(6) { background: #e0a23f; }
/* Multiplying by the app's own channel gains: the same arithmetic it applies
   to the framebuffer, confined to this element. */
.preview-tint {
  position: absolute; inset: 0; pointer-events: none;
  mix-blend-mode: multiply;
  background-color: rgb(255,255,255);
  transition: background-color .45s ease;
}
@media (prefers-reduced-motion: reduce) { .preview-tint { transition: none; } }

.compare { align-self: flex-start; }
.compare::after {
  content: ""; width: 0; height: 0;
}
.compare.is-on { color: var(--accent); border-color: var(--accent-line); }
.preview-note {
  font-size: 0.71rem; line-height: 1.5; color: var(--text-2); margin: 2px 0 0;
}

.curve-anchor.is-clamped { stroke: var(--accent); stroke-opacity: 0.4; }

/* ------------------------------------------------------------- the year
   A day tells you almost nothing about a sun-following schedule; a year tells
   you everything. This is where the clamps and the polar cases become
   visible, so it gets the full width. */

.demo-year {
  margin-top: 24px; padding-top: 22px;
  border-top: 1px solid var(--hairline);
}
.year-head {
  display: flex; flex-wrap: wrap; gap: 10px 20px;
  align-items: baseline; justify-content: space-between; margin-bottom: 12px;
}
.year-readout { font-variant-numeric: tabular-nums; }

#ribbon {
  display: block; width: 100%; height: clamp(150px, 20vw, 220px);
  border-radius: 10px; overflow: visible; cursor: ew-resize;
  touch-action: pan-y; position: relative; z-index: 1;
}
/* Everything drawn on the field has to hold against amber at midnight and
   near-white at noon, so these marks are fixed rather than themed: the field
   underneath is the screen's colour and does not follow the page's theme. */
:root {
  --on-field:        rgba(18, 20, 26, 0.58);
  --on-field-soft:   rgba(18, 20, 26, 0.16);
  --on-field-firm:   rgba(18, 20, 26, 0.24);
  --on-field-strong: rgba(15, 17, 22, 0.86);
  --clamp-line:      #1f43b8;
}
#ribbon-field {
  position: absolute; left: 0; width: 100%; display: block;
  border-radius: 6px; z-index: 0;
}
/* Sunrise and sunset over a field that runs from warm amber to near-white, so
   the line carries its own contrast rather than borrowing the ground's. */
.ribbon-sun-halo {
  fill: none; stroke: rgba(255, 255, 255, 0.55); stroke-width: 3.4;
  stroke-linecap: round; stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}
.ribbon-sun {
  fill: none; stroke: rgba(20, 22, 28, 0.72); stroke-width: 1.4;
  stroke-linecap: round; stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}
/* Three states that must be told apart instantly: ordinary night, a sun that
   never sets, and a sun that never rises. */
/* White for a sun that never sets, deep blue for one that never rises. */
.ribbon-polar-day   { fill: rgba(255, 255, 255, 0.46); }
.ribbon-polar-night { fill: rgba(28, 40, 84, 0.46); }
.ribbon-frame { fill: none; stroke: var(--on-field-firm); vector-effect: non-scaling-stroke; }
.ribbon-anchor {
  fill: none; stroke: var(--on-field); stroke-width: 1.3;
  vector-effect: non-scaling-stroke;
}
.ribbon-anchor.is-clamped {
  stroke: var(--clamp-line); stroke-opacity: 0.95; stroke-width: 2;
}
.ribbon-today {
  stroke: var(--on-field); stroke-opacity: 0.5; stroke-width: 1;
  stroke-dasharray: 3 3; vector-effect: non-scaling-stroke;
}
.ribbon-cursor {
  stroke: var(--on-field-strong); stroke-width: 2;
  vector-effect: non-scaling-stroke;
}
/* Labels sit in HTML above the stretched SVG so they keep their proportions at
   every width. They never take the pointer: the drag belongs to the ribbon. */
.ribbon-wrap { position: relative; }
/* Above the SVG: a sunset line crossing the 18:00 mark must not strike through
   the label, and the line stays readable either side of the chip. */
.ribbon-hours, .ribbon-months { position: absolute; inset: 0; pointer-events: none; z-index: 2; }
.ribbon-hours span, .ribbon-months span {
  position: absolute; font-size: 10px; line-height: 1.4; white-space: nowrap;
  font-family: var(--mono); font-variant-numeric: tabular-nums; letter-spacing: 0.01em;
}
/* Hour marks lie over the bands, whose brightness swings from midnight to
   noon, so they carry their own ground rather than relying on the band. */
.ribbon-hours span {
  left: 5px; transform: translateY(-100%); margin-top: -3px;
  color: #f3f5f8; background: rgba(16, 18, 22, 0.74);
  padding: 0 5px; border-radius: 999px;
}
.ribbon-months span { top: 90%; margin-top: 3px; margin-left: 4px; color: var(--text-3); }
.ribbon-grid  { stroke: var(--on-field-soft); stroke-width: 1; vector-effect: non-scaling-stroke; }

.ribbon-legend {
  list-style: none; margin: 12px 0 0; padding: 0;
  display: flex; flex-wrap: wrap; gap: 6px 16px;
  font-size: 0.75rem; color: var(--text-2);
}
.ribbon-legend li { display: inline-flex; align-items: center; gap: 6px; }
.key { width: 13px; height: 10px; border-radius: 3px; display: inline-block; }
/* Both keys are filled from the engine at draw time so they cannot drift from
   the field they describe; the values here are only a pre-paint fallback. */
.key-field { background: linear-gradient(90deg, var(--key-warm, #a4744a), var(--key-neutral, #e4e4e4)); }
.key-sun {
  background: linear-gradient(180deg, #cdd4de 0 38%, rgba(20, 22, 28, 0.62) 38% 62%, #cdd4de 62%);
}
.key-clamp { background: var(--clamp-line); height: 3px; border-radius: 2px; }
.key-polar-day { background: #f0f2f5; border: 1px solid var(--hairline-firm); }
.key-polar-night { background: #1c2854; }


.year-note {
  margin: 12px 0 0; font-size: 0.8rem; color: var(--text-2);
  min-height: 1.4em;
}
.year-note strong { color: var(--text); font-weight: 600; }
.year-note .flag {
  color: var(--accent); font-weight: 600;
}

/* A second scrubber needs to read as a sibling of the first, not a surprise. */
#year-scrub { --track: var(--year-gradient, linear-gradient(90deg, #2a3350, #9ebde0, #2a3350)); }

.ribbon-night { fill: #dfe3ea; }

/* ------------------------------------------------------- scheme overrides
   These come last on purpose. `.hero-demo` sets `--moment-text` in its own
   rule above, and an override of equal specificity only wins if it is
   declared afterwards. */
@media (prefers-color-scheme: dark) {
  .hero-demo { --moment-text: var(--moment); }
  .ribbon-night { fill: #1a3024; }
  .hero-icon { filter: drop-shadow(0 16px 28px rgba(0, 0, 0, 0.5)); }
  .button.ghost:hover { border-color: color-mix(in srgb, var(--text) 34%, transparent); box-shadow: none; }
  .preview-screen { border-color: var(--hairline); }
}