@font-face {
  font-family: "Hurme Geometric Sans 3";
  src: url("/fonts/hurme-geometric-sans3-bold.ttf") format("truetype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
:root {
  color-scheme: light;
  --bg: #efeff2;
  --app: #ffffff;
  --panel: #f1f1f4;
  --row: #f6f6f8;
  --fill: #e6e2fc;
  --ink: #17181d;
  --muted: #8b8e99;
  --soft: #5c5f6b;
  --blue: #2e4bff;
  --blue-dark: #1e3bef;
  --link: #8b96ff;
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  font-family: "Hurme Geometric Sans 3", "HurmeGeometricSans3W03-Bold", system-ui, -apple-system, sans-serif;
  font-weight: 700;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.4;
  padding-top: 60px; /* offset for the fixed header below */
  overflow-x: clip;
}
.page {
  max-width: 1320px;
  margin: 0 auto;
  padding: 22px 30px 48px;
}

html { scroll-behavior: smooth; }
section[id] { scroll-margin-top: 90px; }

/* fixed header: pinned at all times, even during overscroll */
.topline {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 22px;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line);
  padding: 12px 30px;
}
.topline .wordmark { color: var(--ink); text-decoration: none; font-size: 1rem; }
.topline nav { display: flex; gap: 18px; }
.topline nav a { color: var(--soft); text-decoration: none; font-size: .88rem; }
.topline nav a:hover { color: var(--blue); }
.gh-icon { margin-left: auto; display: flex; }
.gh-icon svg { width: 20px; height: 20px; fill: var(--soft); }
.gh-icon:hover svg { fill: var(--blue); }

/* one-line footer */
.footer {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 30px 8px 4px;
  color: var(--muted);
  font-size: .82rem;
}
.footer i { font-style: normal; }
.footer a { color: var(--soft); text-decoration: none; }
.footer a:hover { color: var(--blue); }
.hero {
  min-height: calc(100vh - 60px);
  min-height: calc(100dvh - 60px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 20px 16px 40px;
}
.eyebrow {
  color: var(--muted);
  font-size: .85rem;
  letter-spacing: .18em;
  margin: 0 0 26px;
}
.hero h1 {
  font-size: clamp(3.4rem, 11vw, 8rem);
  line-height: .98;
  letter-spacing: -.025em;
  margin: 0 0 24px;
}
.hero h1 .dot { color: var(--blue); }
.hero .lede {
  color: var(--soft);
  font-size: clamp(1rem, 2vw, 1.2rem);
  margin: 0 0 38px;
}
.cta-row { display: flex; gap: 26px; align-items: center; justify-content: center; flex-wrap: wrap; }
.btn-dark {
  background: #17181d;
  color: #fff;
  text-decoration: none;
  border-radius: 999px;
  padding: 18px 36px;
  font-size: 1rem;
}
.btn-dark:hover { background: #000; }
.textlink { color: var(--soft); font-size: .95rem; text-decoration: none; border-bottom: 1px solid var(--line); padding-bottom: 2px; }
.textlink:hover { color: var(--blue); border-color: var(--blue); }
.hero .meta {
  display: flex;
  gap: 12px;
  align-items: center;
  color: #c0c2cc;
  font-size: .82rem;
  margin: 44px 0 0;
}
.hero .meta i { font-style: normal; }

/* export section: full viewport, big and airy */
.stack {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px 16px;
}
.stack h2 {
  font-size: clamp(2.2rem, 5.5vw, 4rem);
  letter-spacing: -.02em;
  margin: 0 0 14px;
}
.stack .lede { color: var(--soft); font-size: 1.05rem; margin: 0 0 48px; }
.stack-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
  width: 100%;
  max-width: 860px;
}
.stack-card {
  background: var(--app);
  border: 1px solid var(--line);
  border-radius: 32px;
  padding: 56px 32px;
  box-shadow: 0 12px 40px rgba(23, 24, 29, .07);
}
.stack-card img { height: 120px; width: auto; }
.stack-card h3 { margin: 28px 0 10px; font-size: 1.4rem; }
.stack-card p { margin: 0; color: var(--muted); font-size: .95rem; }
.gh { margin-top: 16px; color: var(--soft); font-size: .85rem; text-decoration: none; border-bottom: 1px solid var(--line); padding-bottom: 2px; }
.gh:hover { color: var(--blue); border-color: var(--blue); }
.gh svg { width: 15px; height: 15px; vertical-align: -2px; margin-right: 7px; fill: currentColor; }
.explain {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 30px 6px 60px;
}
.explain-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
}
.exp:nth-child(3) {
  grid-column: 1 / -1;
  width: 100%;
  max-width: 560px;
  margin: 0 auto;
}
.exp svg { width: 100%; height: auto; display: block; }
.exp .num { color: var(--blue); font-size: 1rem; margin: 22px 0 10px; }
.exp h3 { margin: 0 0 10px; font-size: 1.8rem; }
.exp p:last-child { margin: 0; color: var(--muted); font-size: 1rem; }
.reel {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  text-align: center;
  padding: 30px 6px 60px;
}
.reel-copy h2 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  letter-spacing: -.02em;
  margin: 0 0 10px;
}
.reel-copy p {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
}
.reel-card {
  width: 100%;
  background: var(--app);
  border-radius: 36px;
  padding: 16px;
  box-shadow: 0 12px 40px rgba(23, 24, 29, .07);
  overflow: hidden;
}
.reel-card video {
  display: block;
  width: 100%;
  height: auto;
  max-height: calc(100vh - 120px);
  max-height: calc(100dvh - 120px);
  border-radius: 26px;
  background: #101218;
  object-fit: contain;
  pointer-events: none;
}
.reel-card video::-webkit-media-controls,
.reel-card video::-webkit-media-controls-panel,
.reel-card video::-webkit-media-controls-start-playback-button {
  display: none !important;
  -webkit-appearance: none;
}
.demo .app {
  height: calc(100vh - 60px);
  height: calc(100dvh - 60px);
  min-height: 640px;
}
.app {
  flex: 1;
  min-height: 0;
  background: var(--app);
  border-radius: 36px;
  padding: 16px 32px 28px;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 12px;
  box-shadow: 0 12px 40px rgba(23, 24, 29, .07);
}
.masthead {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 0;
}
.masthead svg { height: 62px; width: auto; display: block; flex: none; }
.mast-tag .wm { margin: 0; font-size: 1.2rem; }
.mast-tag .sub2 { margin: 0; color: var(--muted); font-size: .75rem; }
.body {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 330px;
  gap: 32px;
  min-height: 0;
}

/* left: stacked preview panels + footer */
.panels {
  display: grid;
  grid-template-rows: 1fr 1fr auto;
  gap: 20px;
  min-height: 0;
  min-width: 0;
}
.panel {
  position: relative;
  background: var(--panel);
  border-radius: 26px;
  overflow: hidden;
  min-height: 0;
}
.tag {
  position: absolute;
  top: 16px;
  left: 20px;
  color: var(--muted);
  font-size: .85rem;
  z-index: 2;
}
.ph {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #a3a5b1;
  font-size: clamp(1.5rem, 3vw, 2.3rem);
}
.panel video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #101218;
  opacity: 0;
}
.panel.has-media video { opacity: 1; }
.panel.has-media .ph,
.panel.has-media .tag { opacity: 0; }

.foot { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; row-gap: 10px; }
.choose {
  background: var(--row);
  color: var(--soft);
  border-radius: 14px;
  padding: 12px 22px;
  font-size: .9rem;
  cursor: pointer;
  white-space: nowrap;
}
.choose:hover { background: #ececf0; }
.choose input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.fine {
  color: var(--muted);
  font-size: .85rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  min-width: 0;
  flex: 1 1 120px;
}
.spacer { flex: 1; }
.foot a {
  color: var(--link);
  font-size: .9rem;
  text-decoration: none;
  white-space: nowrap;
}
.foot a:hover { color: var(--blue); }

/* right: controls */
.controls { overflow-y: auto; min-height: 0; padding-right: 2px; }
.controls h2 { margin: 2px 0 18px; font-size: 1.5rem; }
.rows { margin-bottom: 18px; }
.row {
  display: block;
  background: var(--row);
  border-radius: 14px;
  margin: 0 0 16px;
}
.row.sel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  height: 58px;
  font-size: .95rem;
  color: var(--soft);
}
.row.sel select {
  border: none;
  background: transparent;
  font: inherit;
  color: #a2a6b2;
  text-align: right;
  cursor: pointer;
}

/* fill rows: pale wash grows with the value, label left, value right */
.fslider {
  position: relative;
  height: 58px;
  border-radius: 14px;
  background: var(--row);
  overflow: hidden;
  margin: 0 0 16px;
}
.fslider-fill {
  position: absolute;
  top: 0; left: 0; bottom: 0;
  width: 50%;
  border-radius: 14px;
  background: var(--fill);
}
.fslider-name {
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: .95rem;
  color: var(--soft);
  pointer-events: none;
  z-index: 1;
}
.fslider-val {
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: .95rem;
  color: #a2a6b2;
  pointer-events: none;
  z-index: 1;
}
.fslider input[type=range] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: pointer;
  z-index: 2;
}
.fslider input[type=range]:focus-visible { opacity: 1; outline: 2px solid var(--blue); outline-offset: -2px; border-radius: 14px; }

#go {
  width: 100%;
  padding: 17px 18px;
  font-size: 1.05rem;
  cursor: pointer;
  border: none;
  border-radius: 16px;
  background: var(--blue);
  color: #fff;
  font-family: inherit;
  box-shadow: 0 8px 20px rgba(46, 75, 255, .3);
}
#go:hover { background: var(--blue-dark); }
#go:disabled { opacity: .5; cursor: default; }
#report, #status { font-size: .85rem; color: var(--muted); margin: 12px 2px 0; }
.diy-note { font-size: .8rem; color: var(--muted); margin: 12px 2px 0; }
.diy-note a { color: var(--link); text-decoration: none; }
.diy-note a:hover { color: var(--blue); }
#status.error, #report.error { color: #c81e1e; }
#status:empty, #report:empty { display: none; }

/* progress: real fill during upload, animated sweep while vectorising */
.progress {
  height: 14px;
  border-radius: 999px;
  background: var(--row);
  overflow: hidden;
  margin: 14px 0 0;
}
.progress .bar {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: var(--blue);
  transition: width .2s ease;
}
.progress.busy .bar {
  width: 35%;
  animation: sweep 1.2s ease-in-out infinite;
}
@keyframes sweep {
  0% { margin-left: -35%; }
  100% { margin-left: 100%; }
}

@media (max-width: 900px) {
  .page { height: auto; overflow: visible; padding: 14px; }
  .topline { padding: 10px 14px; gap: 14px; }
  .topline nav { gap: 12px; }
  .topline nav a { font-size: .8rem; }
  .app { grid-template-rows: none; border-radius: 28px; padding: 20px; }
  .reel-card { border-radius: 28px; padding: 10px; }
  .reel-card video { max-height: none; }
  .demo .app { height: auto; min-height: 0; }
  .body { grid-template-columns: 1fr; }
  .masthead { gap: 12px; }
  .masthead svg { height: 44px; }
  .masthead > svg:last-child { display: none; } /* decorative squiggle: no room */
  .mast-tag { min-width: 0; }
  .explain-grid { grid-template-columns: 1fr; }
  .stack-grid { grid-template-columns: 1fr; }
  .panels { grid-template-rows: none; }
  .panel { min-height: 220px; }
  .controls { overflow: visible; }
}