/* Sor8 — test */

:root {
  --bg: #F6F6F3;
  --bg-2: #EEEEEA;
  --card: #FFFFFF;
  --ink: #0E1020;
  --ink-2: #2A2D3E;
  --muted: #5D6273;
  --line: rgba(14, 16, 32, .09);
  --line-2: rgba(14, 16, 32, .14);
  --shadow: 0 1px 2px rgba(14, 16, 32, .04), 0 12px 32px -12px rgba(14, 16, 32, .14);

  /* brand: the logo's ribbon */
  --violet: #7A2D96;
  --indigo: #4B55C2;
  --cyan: #1FB9DE;
  --brand: linear-gradient(100deg, var(--violet) 0%, var(--indigo) 48%, var(--cyan) 100%);
  --accent: #4B55C2;

  /* export formats */
  --docx: #2B5BD7;
  --pdf: #D93A3A;
  --html: #E8762C;
  --tex: #148A7A;

  --sans: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "Geist Mono", ui-monospace, "Cascadia Code", Consolas, monospace;
  --serif: "Instrument Serif", Georgia, serif;

  --wrap: 1180px;
  --gutter: clamp(16px, 4vw, 40px);
  --r: 18px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0A0B12;
    --bg-2: #10121B;
    --card: #141622;
    --ink: #ECEEF6;
    --ink-2: #C9CCDA;
    --muted: #9298AE;
    --line: rgba(255, 255, 255, .08);
    --line-2: rgba(255, 255, 255, .14);
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 18px 40px -16px rgba(0, 0, 0, .6);
    --accent: #8C95F2;
    --docx: #6C93FF;
    --pdf: #FF6B6B;
    --html: #FF9D57;
    --tex: #3CC9B4;
    color-scheme: dark;
  }
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 84px; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 400 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, h4 { margin: 0; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 8px; }
em { font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: -.01em; }

.skip { position: absolute; left: 16px; top: -60px; z-index: 200; padding: 10px 16px; border-radius: 10px; background: var(--ink); color: var(--bg); }
.skip:focus { top: 16px; }

.wrap { width: 100%; max-width: calc(var(--wrap) + 2 * var(--gutter)); margin: 0 auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(80px, 11vw, 140px); position: relative; }
.section--tint { background: var(--bg-2); border-block: 1px solid var(--line); }

/* type */
.kicker {
  margin: 0 0 16px; display: inline-flex; align-items: center; gap: 10px;
  font: 500 13px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--accent);
}
.kicker::before { content: ""; width: 18px; height: 2px; border-radius: 2px; background: var(--brand); }
.h2 {
  font-size: clamp(2rem, 4.6vw, 3.5rem); font-weight: 600;
  line-height: 1.05; letter-spacing: -.035em; max-width: 18ch; text-wrap: balance;
}
.h2 em, .hero__title em {
  background: var(--brand); -webkit-background-clip: text; background-clip: text; color: transparent;
  padding-right: .06em;
}
.head { margin-bottom: clamp(40px, 6vw, 64px); }
.head--center { text-align: center; }
.head--center .h2 { margin-inline: auto; }
.head__lead { margin: 20px 0 0; max-width: 38em; font-size: clamp(17px, 1.4vw, 19px); color: var(--muted); }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 22px; border-radius: 12px;
  font: 500 15.5px/1 var(--sans); text-decoration: none; white-space: nowrap;
  border: 1px solid transparent; cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s, border-color .25s;
}
.btn svg { width: 16px; height: 16px; }
.btn--primary {
  color: #fff; background: #12142A;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .14), 0 8px 24px -8px rgba(75, 85, 194, .55);
  position: relative; isolation: isolate;
}
.btn--primary::before {
  content: ""; position: absolute; inset: -1px; z-index: -1; border-radius: inherit;
  background: var(--brand); opacity: 0; transition: opacity .3s;
}
.btn--primary:hover { transform: translateY(-1px); box-shadow: inset 0 1px 0 rgba(255, 255, 255, .2), 0 14px 32px -10px rgba(75, 85, 194, .7); }
.btn--primary:hover::before { opacity: 1; }
.btn--ghost { color: var(--ink); background: var(--card); border-color: var(--line-2); }
.btn--ghost:hover { border-color: var(--ink); transform: translateY(-1px); }
.btn--sm { padding: 10px 16px; font-size: 14.5px; border-radius: 10px; }
@media (prefers-color-scheme: dark) {
  .btn--primary { background: #fff; color: #0A0B12; box-shadow: 0 8px 28px -8px rgba(140, 149, 242, .5); }
  .btn--primary:hover { color: #fff; }
}

/* NAV */
.nav {
  position: fixed; inset: 0 0 auto; z-index: 50;
  transition: background .3s, box-shadow .3s, backdrop-filter .3s;
}
.nav.is-scrolled, .nav.is-open {
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: blur(16px) saturate(1.4); -webkit-backdrop-filter: blur(16px) saturate(1.4);
  box-shadow: 0 1px 0 var(--line);
}
.nav__inner {
  max-width: calc(var(--wrap) + 2 * var(--gutter)); margin: 0 auto; padding: 12px var(--gutter);
  display: flex; align-items: center; gap: 32px;
}
.nav__brand img { height: 38px; width: auto; }
.nav__links { display: flex; gap: 4px; margin-left: auto; }
.nav__links a {
  padding: 8px 12px; border-radius: 8px; font-size: 15px; font-weight: 450; color: var(--ink-2); text-decoration: none;
  transition: background .2s, color .2s;
}
.nav__links a:hover { background: var(--line); color: var(--ink); }
.nav__burger { display: none; }

/* HERO */
.hero { position: relative; isolation: isolate; overflow: hidden; padding: 128px 0 56px; }
.hero__aurora { position: absolute; inset: 0; z-index: -2; pointer-events: none; }
.hero__aurora i {
  position: absolute; border-radius: 50%; filter: blur(70px); opacity: .32;
  animation: float 18s ease-in-out infinite alternate;
}
.hero__aurora i:nth-child(1) { width: 44vw; height: 44vw; left: -12vw; top: -14vw; background: var(--violet); }
.hero__aurora i:nth-child(2) { width: 38vw; height: 38vw; right: -6vw; top: -10vw; background: var(--cyan); animation-delay: -6s; }
.hero__aurora i:nth-child(3) { width: 34vw; height: 34vw; left: 34vw; top: 18vw; background: var(--indigo); opacity: .2; animation-delay: -12s; }
@keyframes float { to { transform: translate3d(4vw, 3vw, 0) scale(1.1); } }
@media (prefers-color-scheme: dark) { .hero__aurora i { opacity: .28; } .hero__aurora i:nth-child(3) { opacity: .22; } }
.hero__grid {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image: radial-gradient(var(--line-2) 1px, transparent 1px);
  background-size: 24px 24px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 30%, transparent 75%);
          mask-image: radial-gradient(ellipse 70% 60% at 50% 30%, #000 30%, transparent 75%);
}
.hero__inner { display: grid; grid-template-columns: .92fr 1.08fr; gap: clamp(32px, 5vw, 72px); align-items: center; }

.pill {
  display: inline-flex; align-items: center; gap: 10px; margin-bottom: 26px;
  padding: 6px 14px 6px 6px; border-radius: 999px;
  background: color-mix(in srgb, var(--card) 75%, transparent); border: 1px solid var(--line-2);
  font-size: 14px; color: var(--ink-2); text-decoration: none;
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  transition: border-color .2s;
}
.pill:hover { border-color: var(--accent); }
.pill__tag { padding: 4px 10px; border-radius: 999px; background: var(--brand); color: #fff; font-weight: 600; font-size: 12.5px; }
.hero__title {
  font-size: clamp(2.7rem, 6.2vw, 5.1rem); font-weight: 600;
  line-height: .98; letter-spacing: -.045em; text-wrap: balance;
}
.hero__title em { display: inline-block; font-size: 1.08em; letter-spacing: -.02em; }
.hero__lead { margin: 24px 0 0; max-width: 33em; font-size: clamp(17px, 1.35vw, 19px); color: var(--muted); }
.hero__ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.hero__facts { display: flex; flex-wrap: wrap; gap: 8px 22px; margin: 26px 0 0; padding: 0; list-style: none; font-size: 14.5px; color: var(--muted); }
.hero__facts li { display: inline-flex; align-items: center; gap: 7px; }
.hero__facts svg { width: 15px; height: 15px; fill: none; stroke: var(--tex); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* demo window */
.demo {
  position: relative; border-radius: 16px; overflow: hidden;
  background: var(--card); border: 1px solid var(--line-2);
  box-shadow: 0 2px 4px rgba(14, 16, 32, .04), 0 40px 80px -30px rgba(40, 30, 120, .35);
}
.demo::before { /* gradient hairline on top */
  content: ""; position: absolute; inset: 0 0 auto; height: 2px; background: var(--brand); z-index: 2;
}
.demo__bar {
  display: flex; align-items: center; gap: 14px; padding: 12px 14px;
  border-bottom: 1px solid var(--line); background: color-mix(in srgb, var(--bg) 60%, var(--card));
}
.demo__dots { display: flex; gap: 6px; }
.demo__dots i { width: 10px; height: 10px; border-radius: 50%; background: var(--line-2); }
.demo__title { font: 500 12.5px/1 var(--mono); color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.demo__formats { display: flex; gap: 6px; margin-left: auto; }
.demo__formats b {
  padding: 5px 8px; border-radius: 6px; font: 600 11px/1 var(--mono); letter-spacing: .02em;
  color: var(--muted); border: 1px solid var(--line-2);
  transition: background .25s, color .25s, border-color .25s, transform .25s var(--ease);
}
.demo__formats b.is-active { color: #fff; transform: translateY(-1px); }
.demo__formats b[data-f="docx"].is-active { background: var(--docx); border-color: var(--docx); }
.demo__formats b[data-f="pdf"].is-active { background: var(--pdf); border-color: var(--pdf); }
.demo__formats b[data-f="html"].is-active { background: var(--html); border-color: var(--html); }
.demo__formats b[data-f="tex"].is-active { background: var(--tex); border-color: var(--tex); }
.demo__body { display: grid; grid-template-columns: 1fr 1.15fr; height: 410px; }
.demo__src {
  margin: 0; padding: 18px 16px; overflow: hidden; border-right: 1px solid var(--line);
  font: 400 12.5px/1.75 var(--mono); color: var(--ink-2); white-space: pre-wrap; word-break: break-word;
  background: color-mix(in srgb, var(--bg) 35%, var(--card));
}
.demo__src .t-h { color: var(--violet); font-weight: 600; }
.demo__src .t-b { color: var(--indigo); }
.demo__src .t-m { color: var(--tex); }
.demo__src .t-c { color: var(--html); }
@media (prefers-color-scheme: dark) { .demo__src .t-h { color: #C58BE0; } .demo__src .t-b { color: var(--accent); } }
.demo__caret { display: inline-block; width: 7px; height: 15px; margin-left: 1px; vertical-align: -3px; background: var(--accent); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.demo__out { padding: 20px 22px; overflow: hidden; font-size: 13.5px; line-height: 1.55; }
.demo__out > * { margin: 0 0 10px; animation: pop .45s var(--ease) both; }
@keyframes pop { from { opacity: 0; transform: translateY(6px); } }
.demo__out h4 { font-size: 21px; font-weight: 650; letter-spacing: -.02em; padding-bottom: 8px; border-bottom: 1px solid var(--line); }
.demo__out h5 { font-size: 15px; font-weight: 650; margin-top: 14px; }
.demo__out ul { padding-left: 18px; }
.demo__out li { margin: 2px 0; }
.demo__out math { font-size: 17px; margin: 6px 0 12px; }
.demo__out pre {
  padding: 10px 12px; border-radius: 8px; background: var(--bg-2); border: 1px solid var(--line);
  font: 12px/1.6 var(--mono); white-space: pre; overflow: hidden;
}
.demo__out table { width: 100%; border-collapse: collapse; font-size: 12.5px; }
.demo__out th { text-align: left; color: var(--accent); font-weight: 600; }
.demo__out th, .demo__out td { padding: 6px 8px; border-bottom: 1px solid var(--line); }
.k { color: var(--violet); font-weight: 600; } .f { color: var(--indigo); } .o { color: var(--pdf); } .s { color: var(--tex); }
@media (prefers-color-scheme: dark) { .k { color: #C58BE0; } .f { color: var(--accent); } }

.demo__toast {
  position: absolute; right: 16px; bottom: 16px; display: flex; align-items: center; gap: 8px;
  padding: 10px 14px; border-radius: 10px; background: var(--ink); color: var(--bg);
  font-size: 13.5px; box-shadow: 0 12px 30px -8px rgba(0, 0, 0, .35);
  opacity: 0; transform: translateY(10px) scale(.98); transition: opacity .3s, transform .35s var(--ease);
}
.demo__toast.is-on { opacity: 1; transform: none; }
.demo__toast svg { width: 16px; height: 16px; fill: none; stroke: #4ADE80; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.demo__toast b { font-family: var(--mono); font-weight: 500; }

.works {
  margin: 56px 0 0; display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 8px 16px;
  font-size: 15px; color: var(--muted);
}
.works span { font: 500 12.5px/1 var(--mono); text-transform: uppercase; letter-spacing: .06em; }
.works b { font-weight: 600; color: var(--ink-2); font-size: 17px; letter-spacing: -.01em; }
.works i { font-style: normal; opacity: .4; }

/* STEPS */
.steps { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: s; }
.step {
  position: relative; padding: 28px 26px 26px; border-radius: var(--r);
  background: var(--card); border: 1px solid var(--line); box-shadow: var(--shadow);
  display: flex; flex-direction: column;
}
.step__n { font: 500 13px/1 var(--mono); color: var(--muted); }
.step h3 { margin: 14px 0 8px; font-size: 22px; font-weight: 600; letter-spacing: -.02em; }
.step p { margin: 0; color: var(--muted); font-size: 15.5px; }
.step__art { margin-top: auto; padding-top: 24px; }
.mini-chat, .mini-split, .mini-files {
  height: 112px; border-radius: 12px; border: 1px solid var(--line); background: var(--bg);
  padding: 14px; position: relative; overflow: hidden;
}
.mini-chat span { display: block; height: 8px; border-radius: 4px; background: var(--line-2); margin-bottom: 9px; width: 92%; }
.mini-chat span.short { width: 58%; }
.mini-chat b {
  position: absolute; right: 12px; bottom: 12px; display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 10px; border-radius: 8px; background: var(--card); border: 1px solid var(--line-2);
  font: 500 12px/1 var(--sans); color: var(--ink-2);
  animation: nudge 3s ease-in-out infinite;
}
.mini-chat svg { width: 13px; height: 13px; fill: none; stroke: currentColor; stroke-width: 1.5; }
@keyframes nudge { 0%, 70%, 100% { box-shadow: 0 0 0 0 rgba(75, 85, 194, 0); } 80% { box-shadow: 0 0 0 5px rgba(75, 85, 194, .25); } }
.mini-split { display: grid; grid-template-columns: 1fr 1fr; gap: 0; padding: 0; }
.mini-split code { padding: 12px; font: 11.5px/1.7 var(--mono); color: var(--muted); border-right: 1px solid var(--line); }
.mini-split div { padding: 10px 12px; font-size: 12.5px; line-height: 1.5; }
.mini-split strong { font-size: 15px; }
.mini-split p { margin: 2px 0; }
.mini-files { display: flex; align-items: center; justify-content: center; gap: 10px; }
.mini-files span {
  width: 54px; height: 68px; border-radius: 8px; position: relative;
  display: grid; place-items: end center; padding-bottom: 10px;
  font: 600 11px/1 var(--mono); color: #fff;
  transition: transform .3s var(--ease);
}
.mini-files span::before { content: ""; position: absolute; top: 0; right: 0; width: 14px; height: 14px; background: rgba(255, 255, 255, .35); border-bottom-left-radius: 6px; }
.step:hover .mini-files span:nth-child(odd) { transform: translateY(-4px) rotate(-3deg); }
.step:hover .mini-files span:nth-child(even) { transform: translateY(-4px) rotate(3deg); }
.f-docx { background: var(--docx); } .f-pdf { background: var(--pdf); } .f-html { background: var(--html); } .f-tex { background: var(--tex); }

/* BENTO */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.card {
  padding: 28px; border-radius: var(--r); background: var(--card);
  border: 1px solid var(--line); box-shadow: var(--shadow);
  position: relative; overflow: hidden;
  transition: transform .35s var(--ease), border-color .35s;
}
.card:hover { transform: translateY(-3px); border-color: var(--line-2); }
.card h3 { font-size: 21px; font-weight: 600; letter-spacing: -.02em; margin-bottom: 8px; }
.card p { margin: 0; color: var(--muted); font-size: 15.5px; }
.card--math { grid-column: span 4; display: grid; grid-template-columns: 1fr 1.1fr; gap: 28px; align-items: center; }
.card--code { grid-column: span 2; }
.card--private { grid-column: span 2; }
.card--table { grid-column: span 2; }
.card--formats { grid-column: span 2; }
.math-visual {
  padding: 22px; border-radius: 14px; background: var(--bg); border: 1px solid var(--line);
  display: grid; justify-items: center; gap: 10px; text-align: center;
}
.math-visual code { font: 12.5px/1.5 var(--mono); color: var(--muted); word-break: break-all; }
.math-arrow { color: var(--accent); font-size: 18px; line-height: 1; }
.math-visual math { font-size: 30px; color: var(--ink); }
.code {
  margin: 22px 0 0; padding: 16px; border-radius: 12px; overflow: auto;
  background: var(--bg); border: 1px solid var(--line);
  font: 12.5px/1.7 var(--mono); color: var(--ink-2);
}
.shield { width: 56px; height: 56px; margin-bottom: 20px; border-radius: 14px; display: grid; place-items: center; background: var(--brand); }
.shield svg { width: 30px; height: 30px; fill: none; stroke: #fff; stroke-width: 2.6; stroke-linecap: round; stroke-linejoin: round; }
.mini-table { width: 100%; margin-top: 20px; border-collapse: collapse; font-size: 13.5px; }
.mini-table th { text-align: left; font-weight: 600; color: var(--accent); }
.mini-table th, .mini-table td { padding: 8px 6px; border-bottom: 1px solid var(--line); }
.mini-table .up { color: var(--tex); font-family: var(--mono); font-size: 12.5px; }
.formats { list-style: none; margin: 20px 0 0; padding: 0; display: grid; gap: 8px; }
.formats li { display: flex; align-items: center; gap: 12px; font-size: 14.5px; color: var(--ink-2); }
.formats b { width: 56px; padding: 6px 0; border-radius: 7px; text-align: center; font: 600 11.5px/1 var(--mono); color: #fff; }

/* SCREENSHOT */
.shot__frame {
  margin: 0 auto; max-width: 1160px; padding: 10px; border-radius: 22px;
  background: linear-gradient(var(--card), var(--card)) padding-box, var(--brand) border-box;
  border: 1px solid transparent;
  box-shadow: 0 50px 100px -40px rgba(40, 30, 120, .45);
}
.shot__frame img { width: 100%; height: auto; border-radius: 14px; }
.shot__ctas { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 40px; }

/* ABOUT */
.values { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.values li { display: flex; gap: 16px; padding: 24px; border-radius: var(--r); background: var(--card); border: 1px solid var(--line); }
.values h3 { font-size: 18px; font-weight: 600; letter-spacing: -.01em; margin-bottom: 6px; }
.values p { margin: 0; font-size: 15px; color: var(--muted); }
.values__icon { flex: none; width: 40px; height: 40px; border-radius: 10px; display: grid; place-items: center; background: var(--bg-2); border: 1px solid var(--line); }
.values__icon svg { width: 20px; height: 20px; fill: none; stroke: var(--accent); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.legacy {
  margin-top: 20px; padding: 26px 28px; border-radius: var(--r);
  display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap;
  background: var(--card); border: 1px dashed var(--line-2);
}
.legacy .kicker { margin-bottom: 10px; }
.legacy h3 { font-size: 20px; font-weight: 600; letter-spacing: -.01em; }
.legacy p { margin: 4px 0 0; color: var(--muted); font-size: 15.5px; }

/* CONTACT */
.cta {
  position: relative; isolation: isolate; overflow: hidden;
  padding: clamp(40px, 7vw, 80px); border-radius: 28px; text-align: center;
  background: #0E1020; color: #ECEEF6;
}
@media (prefers-color-scheme: dark) { .cta { background: var(--card); border: 1px solid var(--line-2); } }
.cta__glow {
  position: absolute; inset: auto -20% -70% -20%; height: 120%; z-index: -1;
  background: radial-gradient(ellipse at 50% 0%, rgba(75, 85, 194, .55), transparent 60%), radial-gradient(ellipse at 20% 30%, rgba(122, 45, 150, .45), transparent 55%), radial-gradient(ellipse at 80% 30%, rgba(31, 185, 222, .4), transparent 55%);
  filter: blur(20px);
}
.cta .h2 { margin: 0 auto; color: #fff; }
.cta__cards { display: grid; grid-template-columns: repeat(2, minmax(0, 340px)); justify-content: center; gap: 16px; margin-top: 40px; }
.contact {
  display: grid; gap: 6px; padding: 22px 24px; border-radius: 16px; text-align: left; text-decoration: none;
  background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .12);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  transition: background .25s, transform .25s var(--ease), border-color .25s;
}
.contact:hover { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .28); transform: translateY(-2px); }
.contact__label { font: 500 12px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: rgba(236, 238, 246, .6); }
.contact__mail { font-size: 21px; font-weight: 600; letter-spacing: -.02em; }
.contact__hint { font-size: 14px; color: rgba(236, 238, 246, .6); }

/* FOOTER */
.footer { padding: 56px 0 32px; border-top: 1px solid var(--line); }
.footer__inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px; }
.footer__brand img { height: 32px; width: auto; }
.footer__brand p { margin: 12px 0 0; color: var(--muted); font-size: 14.5px; }
.footer__col { display: grid; gap: 10px; align-content: start; }
.footer__col h4 { font: 500 12.5px/1 var(--mono); letter-spacing: .06em; text-transform: uppercase; color: var(--muted); margin-bottom: 6px; }
.footer__col a { font-size: 15px; text-decoration: none; color: var(--ink-2); }
.footer__col a:hover { color: var(--accent); }
.footer__bottom { margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--line); }
.footer__bottom p { margin: 0; font-size: 13.5px; color: var(--muted); }

/* reveal */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.js .reveal.is-in { opacity: 1; transform: none; }

/* RESPONSIVE */
@media (max-width: 1040px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__copy { max-width: 640px; }
  .card--math { grid-column: span 6; }
  .card--code, .card--private, .card--table, .card--formats { grid-column: span 3; }
}
@media (max-width: 820px) {
  .nav__links {
    position: fixed; inset: 63px 0 auto; flex-direction: column; gap: 0; padding: 8px var(--gutter) 20px;
    background: var(--bg); border-bottom: 1px solid var(--line);
    opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: opacity .25s, transform .25s var(--ease), visibility .25s;
  }
  .nav.is-open .nav__links { opacity: 1; visibility: visible; transform: none; }
  .nav__links a { padding: 14px 4px; font-size: 18px; border-bottom: 1px solid var(--line); border-radius: 0; }
  .nav__links a:hover { background: none; }
  .nav__cta { margin-left: auto; }
  .nav__burger {
    display: grid; gap: 5px; place-content: center; width: 42px; height: 42px; border-radius: 10px;
    background: var(--card); border: 1px solid var(--line-2); cursor: pointer;
  }
  .nav__burger span { width: 18px; height: 1.6px; background: var(--ink); transition: transform .3s var(--ease); }
  .nav.is-open .nav__burger span:first-child { transform: translateY(3.3px) rotate(45deg); }
  .nav.is-open .nav__burger span:last-child { transform: translateY(-3.3px) rotate(-45deg); }

  .steps, .values { grid-template-columns: 1fr; }
  .card--math { grid-template-columns: 1fr; }
  .card--code, .card--private, .card--table, .card--formats { grid-column: span 6; }
  .cta__cards { grid-template-columns: 1fr; }
  .footer__inner { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .nav__inner { gap: 12px; }
  .nav__brand img { height: 32px; }
  .hero { padding-top: 104px; }
  .hero__ctas .btn { flex: 1 1 100%; }
  .demo__body { grid-template-columns: 1fr; grid-template-rows: 150px 330px; height: auto; }
  .demo__src { border-right: 0; border-bottom: 1px solid var(--line); }
  .demo__formats b { padding: 5px 6px; font-size: 10px; }
  .demo__title { display: none; }
  .card, .step { padding: 22px; }
  .math-visual math { font-size: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; }
}

/* ==========================================================================
   v2 — refinement + motion layer
   ========================================================================== */

:root { --shadow: 0 1px 2px rgba(14, 16, 32, .03), 0 10px 30px -14px rgba(14, 16, 32, .12); }
@property --ang { syntax: "<angle>"; inherits: false; initial-value: 0deg; }

/* floating capsule nav */
.nav.is-scrolled, .nav.is-open { background: none; backdrop-filter: none; -webkit-backdrop-filter: none; box-shadow: none; }
.nav { transition: padding .5s var(--ease); }
.nav.is-scrolled, .nav.is-open { padding-top: 10px; }
.nav__inner {
  border: 1px solid transparent; border-radius: 999px;
  transition: max-width .6s var(--ease), padding .6s var(--ease), background .4s, border-color .4s, box-shadow .4s;
}
.nav.is-scrolled .nav__inner, .nav.is-open .nav__inner {
  max-width: 920px; padding: 7px 7px 7px 22px;
  background: color-mix(in srgb, var(--card) 72%, transparent);
  backdrop-filter: blur(18px) saturate(1.5); -webkit-backdrop-filter: blur(18px) saturate(1.5);
  border-color: var(--line-2);
  box-shadow: 0 12px 34px -14px rgba(14, 16, 32, .22);
}
.nav__brand img { transition: height .5s var(--ease); }
.nav.is-scrolled .nav__brand img { height: 30px; }
.nav.is-scrolled .btn--sm { border-radius: 999px; }

/* refined type */
.hero__title { font-weight: 550; font-size: clamp(2.7rem, 5.9vw, 4.9rem); letter-spacing: -.05em; }
.hero__title em { white-space: nowrap; }
.h2 { font-weight: 550; letter-spacing: -.04em; }
.step__n { background: var(--brand); -webkit-background-clip: text; background-clip: text; color: transparent; font-weight: 600; }

/* gradient shimmer on the italic accents */
.hero__title em, .h2 em {
  background-image: linear-gradient(100deg, var(--violet) 0%, var(--indigo) 25%, var(--cyan) 50%, var(--indigo) 75%, var(--violet) 100%);
  background-size: 200% 100%;
  animation: shimmer 9s linear infinite;
}
@keyframes shimmer { to { background-position: -200% 0; } }

/* word-by-word blur reveal */
.split .w { display: inline-block; }
.js .split .w__i {
  display: inline-block; opacity: 0; filter: blur(14px); transform: translate3d(0, .32em, 0);
  transition: opacity .9s var(--ease), filter 1s var(--ease), transform 1.1s var(--ease);
  transition-delay: calc(var(--i) * 65ms + 120ms);
}
.js .is-in .split .w__i, .js .split.is-in .w__i { opacity: 1; filter: none; transform: none; }
.js .reveal.split { opacity: 1; transform: none; }
.js .kicker::before { width: 0; transition: width .9s var(--ease) .2s; }
.js .is-in .kicker::before, .js .kicker.is-in::before { width: 18px; }

/* hero: cursor light + ribbons */
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(520px circle at var(--hx, 70%) var(--hy, 30%), color-mix(in srgb, var(--cyan) 14%, transparent), transparent 60%);
}
.ribbons {
  position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; pointer-events: none;
  /* keep the lines clear of the hero copy */
  -webkit-mask-image: linear-gradient(90deg, transparent 0%, transparent 32%, #000 62%);
          mask-image: linear-gradient(90deg, transparent 0%, transparent 32%, #000 62%);
}
@media (max-width: 1040px) { .ribbons { -webkit-mask-image: linear-gradient(180deg, transparent 0%, transparent 55%, #000 85%); mask-image: linear-gradient(180deg, transparent 0%, transparent 55%, #000 85%); } }
@media (max-width: 560px) { .demo__toast { right: auto; left: 12px; bottom: 12px; } }
.ribbon { stroke-dasharray: 1; stroke-dashoffset: 1; animation: draw 3s var(--ease) forwards; }
.r1 { stroke-width: 1.6; opacity: .45; animation-delay: .35s; }
.r2 { stroke-width: 1; opacity: .3; animation-delay: .65s; }
.r3 { stroke-width: 2.4; opacity: .35; animation-delay: .5s; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.spark {
  stroke-width: 3; stroke-dasharray: .05 .95; stroke-dashoffset: 1; opacity: 0;
  filter: drop-shadow(0 0 6px rgba(75, 85, 194, .9));
  animation: flow 6.5s linear infinite 3.2s;
}
.s2 { animation-duration: 8s; animation-delay: 4.6s; }
@keyframes flow { 0% { stroke-dashoffset: 1; opacity: 0; } 6% { opacity: 1; } 90% { opacity: 1; } 100% { stroke-dashoffset: 0; opacity: 0; } }
.hero__aurora i { animation-duration: 22s; }

/* demo: 3D tilt, glow, flying export files */
.demo-stage { position: relative; perspective: 1600px; }
.demo-stage::before {
  content: ""; position: absolute; inset: 12% 8% -4%; z-index: -1; border-radius: 40px;
  background: var(--brand); filter: blur(64px); opacity: .22;
  animation: breathe 7s ease-in-out infinite alternate;
}
@keyframes breathe { to { opacity: .34; transform: scale(1.04); } }
.demo { transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg)); transition: transform .9s var(--ease); will-change: transform; }
.dock { position: absolute; inset: 0; pointer-events: none; z-index: 3; }
.file {
  position: absolute; left: 0; top: 0; width: 58px; height: 72px; border-radius: 9px;
  display: grid; place-items: end center; padding-bottom: 11px;
  font: 600 11px/1 var(--mono); color: #fff; letter-spacing: .02em;
  box-shadow: 0 14px 28px -10px rgba(14, 16, 32, .5), inset 0 1px 0 rgba(255, 255, 255, .25);
}
.file::before { content: ""; position: absolute; top: 0; right: 0; width: 15px; height: 15px; background: rgba(255, 255, 255, .38); border-bottom-left-radius: 6px; border-top-right-radius: 9px; }
.file::after { content: ""; position: absolute; left: 11px; right: 11px; top: 18px; height: 22px; background: repeating-linear-gradient(rgba(255, 255, 255, .45) 0 2px, transparent 2px 7px); border-radius: 2px; }

/* spotlight cards */
.spot { position: relative; isolation: isolate; }
.spot::before, .spot::after { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; opacity: 0; transition: opacity .45s var(--ease); }
.spot::before { z-index: -1; background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--accent) 11%, transparent), transparent 45%); }
.spot::after {
  padding: 1px;
  background: radial-gradient(260px circle at var(--mx, 50%) var(--my, 50%), var(--cyan), var(--indigo) 35%, transparent 65%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor;
          mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);         mask-composite: exclude;
}
.spot:hover::before, .spot:hover::after { opacity: 1; }
.card:hover, .step:hover { transform: translateY(-4px); }
.step { transition: transform .4s var(--ease), border-color .4s; }
.values li { transition: transform .4s var(--ease); }
.values li:hover { transform: translateY(-3px); }

/* in-card motion (plays once the card scrolls in) */
.js .code .ln { display: inline-block; clip-path: inset(0 100% 0 0); }
.js .card.is-in .code .ln { animation: type 1s steps(30, end) forwards .5s; }
.js .card.is-in .code .ln:nth-child(2) { animation-delay: 1.5s; }
.js .card.is-in .code .ln:nth-child(3) { animation-delay: 2.5s; }
@keyframes type { to { clip-path: inset(0 0 0 0); } }
.js .mini-table tbody tr, .js .formats li { opacity: 0; transform: translateX(-12px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.js .card.is-in .mini-table tbody tr, .js .card.is-in .formats li { opacity: 1; transform: none; }
.js .card.is-in .mini-table tbody tr:nth-child(1), .js .card.is-in .formats li:nth-child(1) { transition-delay: .35s; }
.js .card.is-in .mini-table tbody tr:nth-child(2), .js .card.is-in .formats li:nth-child(2) { transition-delay: .5s; }
.js .card.is-in .mini-table tbody tr:nth-child(3), .js .card.is-in .formats li:nth-child(3) { transition-delay: .65s; }
.js .card.is-in .formats li:nth-child(4) { transition-delay: .8s; }
.js .math-visual math { opacity: 0; filter: blur(8px); transform: scale(.92); transition: opacity 1s var(--ease) .9s, filter 1s var(--ease) .9s, transform 1s var(--ease) .9s; }
.js .card.is-in .math-visual math { opacity: 1; filter: none; transform: none; }
.math-arrow { animation: bob 2.2s ease-in-out infinite; }
@keyframes bob { 50% { transform: translateY(4px); } }
.shield { position: relative; }
.shield::after { content: ""; position: absolute; inset: 0; border-radius: inherit; animation: ring 2.8s ease-out infinite; }
@keyframes ring { from { box-shadow: 0 0 0 0 rgba(75, 85, 194, .45); } to { box-shadow: 0 0 0 18px rgba(75, 85, 194, 0); } }
.js .mini-split div > * { opacity: 0; transform: translateY(6px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.js .step.is-in .mini-split div > * { opacity: 1; transform: none; }
.js .step.is-in .mini-split div > :nth-child(1) { transition-delay: .5s; }
.js .step.is-in .mini-split div > :nth-child(2) { transition-delay: .75s; }
.js .step.is-in .mini-split div > :nth-child(3) { transition-delay: 1s; }
.js .mini-files span { opacity: 0; transform: translateY(14px) scale(.9); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.js .step.is-in .mini-files span { opacity: 1; transform: none; }
.js .step.is-in .mini-files span:nth-child(2) { transition-delay: .12s; }
.js .step.is-in .mini-files span:nth-child(3) { transition-delay: .24s; }
.js .step.is-in .mini-files span:nth-child(4) { transition-delay: .36s; }
.js .step.is-in:hover .mini-files span { transition-delay: 0s; }
.js .step.is-in:hover .mini-files span:nth-child(odd) { transform: translateY(-4px) rotate(-3deg); }
.js .step.is-in:hover .mini-files span:nth-child(even) { transform: translateY(-4px) rotate(3deg); }

/* screenshot rises from a tilt as you scroll */
.shot__stage { perspective: 1800px; }
.shot__frame {
  transform-origin: 50% 0%;
  transform: translateY(calc((1 - var(--p, 1)) * 48px)) rotateX(calc((1 - var(--p, 1)) * 24deg)) scale(calc(.88 + var(--p, 1) * .12));
  will-change: transform;
}

/* contact: slowly turning light */
.cta__ring {
  position: absolute; inset: -45%; z-index: -1; pointer-events: none;
  background: conic-gradient(from var(--ang), transparent 0deg, rgba(122, 45, 150, .55) 60deg, transparent 120deg, rgba(31, 185, 222, .5) 200deg, transparent 260deg, rgba(75, 85, 194, .55) 320deg, transparent 360deg);
  filter: blur(60px); opacity: .75;
  animation: turn 16s linear infinite;
}
@keyframes turn { to { --ang: 360deg; } }
.cta__glow { opacity: .6; }

/* magnetic primary buttons */
.btn--primary { transform: translate(var(--tx, 0px), var(--ty, 0px)); }
.btn--primary:hover { transform: translate(var(--tx, 0px), calc(var(--ty, 0px) - 1px)); }

@media (max-width: 820px) {
  .nav.is-scrolled .nav__inner, .nav.is-open .nav__inner { margin-inline: 10px; padding-left: 16px; }
  .nav__links { inset: 74px 10px auto; border: 1px solid var(--line-2); border-radius: 20px; background: var(--card); box-shadow: 0 20px 40px -16px rgba(14, 16, 32, .3); }
  .nav__links a:last-child { border-bottom: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .ribbon { stroke-dashoffset: 0; }
  .spark, .cta__ring { display: none; }
  .js .split .w__i, .js .mini-table tbody tr, .js .formats li, .js .math-visual math, .js .mini-split div > *, .js .mini-files span { opacity: 1; filter: none; transform: none; }
  .js .code .ln { clip-path: none; }
  .shot__frame { transform: none; }
}