:root {
  --bg: #0f0e0c;
  --bg-2: #161410;
  --panel: #1b1914;
  --line: rgba(244, 240, 230, 0.1);
  --text: #f4f0e6;
  --muted: #9b9486;
  --accent: #d4a24c;
  --accent-2: #f0d7a2;
  /* One column shared by prose and figures so their left and right edges line up. */
  --content: 1200px;
  --serif: "Fraunces", "Iowan Old Style", "Palatino Linotype", serif;
  --sans: "IBM Plex Sans", "Helvetica Neue", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.65;
}

a { color: inherit; }
img { max-width: 100%; display: block; }
button { font: inherit; }

.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 5vw;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
}

.brand {
  text-decoration: none;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 600;
}

.nav-links {
  display: flex;
  gap: 22px;
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.nav-links a { text-decoration: none; color: var(--muted); }
.nav-links a:hover { color: var(--text); }

/* Spans the page, so every child centres against the full width. */
.hero { padding: 72px 5vw 28px; text-align: center; }

.hero > .kicker,
.hero > h1,
.hero > .tagline { max-width: 920px; margin-inline: auto; }

.kicker {
  font-family: var(--mono);
  /* Stays an eyebrow above the wordmark: the ceiling is far below the h1's 52px floor. */
  font-size: clamp(14px, 1.2vw, 17px);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  /* Tight: this line runs on into the wordmark, so the two read as one phrase. */
  margin: 0 0 10px;
}

h1 {
  font-family: var(--serif);
  font-size: clamp(52px, 8vw, 88px);
  line-height: 0.92;
  font-weight: 500;
  letter-spacing: -0.03em;
  margin: 0 0 14px;
}

/* Ties the wordmark to the "twin" it is named after; both carry the same italic cut. */
.twinkle {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 600;
  font-variation-settings: "SOFT" 40, "WONK" 1;
  letter-spacing: -0.01em;
}

h1.twinkle { letter-spacing: -0.035em; }

.tagline {
  font-family: var(--serif);
  font-size: clamp(24px, 2.6vw, 34px);
  color: var(--accent-2);
  margin: 0 0 22px;
  text-wrap: balance;
}

.lead {
  color: #d8d1c3;
  font-size: 18px;
  line-height: 1.6;
  margin: 0 auto;
  max-width: 44em;
  text-align: center;
  /* Short enough that browsers will balance it: every line ends up a similar length,
     so there is no stubby last line to begin with. */
  text-wrap: balance;
}

/* 16:9 box so the player keeps its shape at any width and nothing below it jumps. */
.hero-video {
  margin: 26px auto 30px;
  max-width: 900px;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: 16px;
  overflow: hidden;
  background: #000;
}

.hero-video iframe { display: block; width: 100%; height: 100%; border: 0; }

.section { padding: 64px 5vw; text-align: center; }
.section.alt { background: var(--bg-2); }

.section h2 {
  font-family: var(--serif);
  font-size: clamp(28px, 3vw, 40px);
  font-weight: 500;
  letter-spacing: -0.03em;
  margin: 0 0 10px;
  /* Evens out the lines rather than leaving a lone word under a full one. */
  text-wrap: balance;
}

.section-lead {
  max-width: 50em;
  color: var(--muted);
  font-size: 17.5px;
  line-height: 1.75;
  margin: 0 auto 22px;
  /* Too many lines for browsers to balance, so settle for avoiding a stranded last line.
     js/typography.js binds the closing words as a floor, since pretty is best-effort. */
  text-wrap: pretty;
}
.section-lead strong { color: var(--text); font-weight: 600; }
.section-lead.close { margin-top: 28px; }

/* Stacked and centred: the toolbar sits under the copy instead of beside it. */
.section-head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}

.section-head .section-lead { margin-bottom: 0; }

.demo-tools { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; align-items: center; }
.case-meta { font-family: var(--mono); font-size: 12px; color: var(--accent-2); margin-right: 6px; }

.chip {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--muted);
  border-radius: 999px;
  padding: 7px 13px;
  font-size: 13px;
  cursor: pointer;
}

.chip.active {
  color: #161410;
  background: var(--accent);
  border-color: var(--accent);
}

.chip.lock {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.chip.lock svg {
  width: 13px;
  height: 13px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}

/* Open shackle when unlocked, closed when the cameras are tied together. */
.chip.lock .shackle {
  transform-origin: 8px 10px;
  transform: rotate(-32deg) translateX(-2px);
  transition: transform 0.18s ease;
}

.chip.lock.active .shackle { transform: none; }

.compare-wrap {
  display: grid;
  grid-template-columns: minmax(240px, 340px) 1fr;
  gap: 8px;
  align-items: stretch;
}

.input-col,
.cmp-pane {
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  min-height: 560px;
  display: flex;
  flex-direction: column;
}

.input-col {
  background: #12110e;
  align-self: start;
  min-height: 0;
}

.cmp-pane.is-ours { border-color: color-mix(in srgb, var(--accent) 70%, var(--line)); }

.pane-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  padding: 7px 10px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, #12110e 82%, transparent);
  backdrop-filter: blur(4px);
}

.pane-tag.featured { color: var(--accent-2); }

.rival-tabs { display: flex; gap: 4px; }

.rival-tab {
  border: 1px solid transparent;
  background: transparent;
  color: var(--muted);
  font: inherit;
  letter-spacing: 0.08em;
  padding: 3px 9px;
  border-radius: 999px;
  cursor: pointer;
}

.rival-tab:hover { color: var(--fg); border-color: var(--line); }

.rival-tab.active {
  color: #161410;
  background: var(--accent);
  border-color: var(--accent);
}

/* No forced square: portrait inputs then fill the column instead of sitting in side bars. */
.input-col img {
  width: 100%;
  max-height: 560px;
  object-fit: contain;
  background: #0c0b09;
}

.compare-row {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(240px, 1fr));
  gap: 8px;
  min-width: 0;
  touch-action: none;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
}

.compare-row:active { cursor: grabbing; }

.compare-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  border-radius: 12px;
}

.cmp-pane {
  position: relative;
  z-index: 1;
  background: transparent;
}

.pane-stage { position: relative; flex: 1; min-height: 520px; }

.pane-poster {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.2s;
  background: #11100e;
  pointer-events: none;
  -webkit-user-drag: none;
}

.pane-poster.on { opacity: 0.5; }

.pane-load {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  pointer-events: none;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-2);
  opacity: 0;
  transition: opacity 0.15s;
}

.pane-load.on { opacity: 1; }

.pane-load .spin {
  width: 15px;
  height: 15px;
  border: 2px solid color-mix(in srgb, var(--accent-2) 28%, transparent);
  border-top-color: var(--accent-2);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.case-strip {
  display: grid;
  grid-template-columns: repeat(25, minmax(64px, 1fr));
  gap: 6px;
  margin-top: 14px;
  overflow-x: auto;
}

.case-thumb {
  border: 1px solid var(--line);
  background: #11100d;
  padding: 0;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  color: var(--muted);
}

.case-thumb img { width: 100%; aspect-ratio: 1; object-fit: contain; background: #0c0b09; }
.case-thumb span {
  display: block;
  font-family: var(--mono);
  font-size: 10px;
  padding: 3px 0 5px;
  text-align: center;
}
.case-thumb.active { border-color: var(--accent); color: var(--accent-2); }

.scan { display: grid; gap: 8px; }

.scan-row {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 6px;
  width: 100%;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--panel);
  cursor: pointer;
  color: inherit;
}

.scan-row figure { margin: 0; }
/* Inputs come in arbitrary aspect ratios; cover would slice off their edges. */
.scan-row img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: contain;
  background: #0c0b09;
  border-radius: 6px;
}
.scan-row figcaption {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-top: 4px;
}
.scan-row .ours figcaption { color: var(--accent-2); }
.scan-row:hover { border-color: color-mix(in srgb, var(--accent) 50%, var(--line)); }

/* Cap plates near their native pixel width; on wide screens full bleed just upscales them. */
.figure {
  margin: 0 auto 22px;
  max-width: var(--content);
}
.figure img {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--line);
}
.figure figcaption { color: var(--muted); font-size: 13px; margin-top: 8px; }

.fig-pair, .fig-stack {
  display: grid;
  gap: 16px;
  max-width: var(--content);
  margin-inline: auto;
}
.fig-pair { grid-template-columns: 1fr 1fr; }
.fig-pair.tight { gap: 28px; }

/* Each plate is itself a multi-panel comparison; side by side they shrink past legibility. */
.fig-stack { gap: 22px; }
.fig-stack .figure { margin-bottom: 0; }

.footer {
  padding: 32px 5vw 44px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

@media (max-width: 1100px) {
  .compare-wrap { grid-template-columns: minmax(180px, 240px) 1fr; }
  .section-head { display: block; }
  .scan-row, .case-strip { display: flex; }
  .scan-row figure { min-width: 160px; }
  .input-col, .cmp-pane { min-height: 420px; }
  .pane-stage { min-height: 380px; }
  .case-thumb { min-width: 68px; }
}

@media (max-width: 720px) {
  .nav { flex-wrap: wrap; }
  .fig-pair, .compare-wrap { grid-template-columns: 1fr; }
  .compare-row { grid-template-columns: 1fr; }
  .input-col { min-height: 220px; }
  .input-col, .cmp-pane { min-height: 320px; }
  .pane-stage { min-height: 300px; }
}