/* DocuPulse — landing page. Hand-written, no framework, no build step.
   Works under a strict CSP: no inline styles, no inline scripts. */

:root {
  --ink: #0c0e14;
  --ink-2: #2a2f3a;
  --muted: #5d6474;
  --line: #e8eaf0;
  --line-2: #f0f1f5;
  --soft: #f7f8fb;
  --bg: #ffffff;
  --purple: #6a0777;
  --green: #008a5c;
  --green-ink: #006e49;
  --grad: linear-gradient(95deg, #6a0777 0%, #3d3f8f 50%, #008a5c 100%);
  --radius: 18px;
  --radius-sm: 10px;
  --shadow-lg: 0 1px 0 rgba(12,14,20,.04), 0 30px 80px -24px rgba(40,20,70,.22), 0 12px 30px -12px rgba(12,14,20,.12);
  --shadow-sm: 0 1px 2px rgba(12,14,20,.05), 0 6px 20px -10px rgba(12,14,20,.12);
  --maxw: 1180px;
  --font: "Geist", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { color: var(--ink); margin: 0; font-weight: 600; letter-spacing: -0.035em; line-height: 1.08; }
p { margin: 0; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.grad-text { background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  height: 46px; padding: 0 20px; border-radius: 999px;
  font-weight: 550; font-size: 15px; letter-spacing: -0.01em;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn svg { width: 16px; height: 16px; transition: transform .2s ease; }
.btn:hover svg { transform: translateX(3px); }
.btn--primary { background: var(--ink); color: #fff; box-shadow: 0 8px 24px -10px rgba(12,14,20,.5), inset 0 1px 0 rgba(255,255,255,.12); }
.btn--primary:hover { transform: translateY(-1px); background: #1b1f29; }
.btn--green { background: var(--green); color: #fff; box-shadow: 0 10px 26px -10px rgba(0,138,92,.6), inset 0 1px 0 rgba(255,255,255,.18); }
.btn--green:hover { transform: translateY(-1px); background: var(--green-ink); }
.btn--ghost { background: #fff; color: var(--ink); border-color: var(--line); box-shadow: var(--shadow-sm); }
.btn--ghost:hover { border-color: #d5d8e1; transform: translateY(-1px); }
.btn--sm { height: 38px; padding: 0 16px; font-size: 14px; }

/* ---------- nav ---------- */
.nav { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.72); backdrop-filter: saturate(180%) blur(16px); -webkit-backdrop-filter: saturate(180%) blur(16px); border-bottom: 1px solid transparent; transition: border-color .25s ease; }
.nav.is-scrolled { border-bottom-color: var(--line); }
.nav__inner { display: flex; align-items: center; gap: 32px; height: 68px; }
.nav__logo img { height: 22px; width: auto; }
.nav__links { display: flex; gap: 28px; margin-left: 8px; }
.nav__links a { font-size: 14.5px; color: var(--muted); font-weight: 500; transition: color .15s; }
.nav__links a:hover { color: var(--ink); }
.nav__right { margin-left: auto; display: flex; align-items: center; gap: 14px; }
.lang { display: inline-flex; align-items: center; gap: 2px; padding: 3px; border: 1px solid var(--line); border-radius: 999px; font-size: 12.5px; font-weight: 600; }
.lang a { padding: 3px 9px; border-radius: 999px; color: var(--muted); }
.lang a[aria-current="true"] { background: var(--ink); color: #fff; }
.lang a:not([aria-current="true"]):hover { color: var(--ink); }

/* ---------- backgrounds ---------- */
.bg-grid { position: absolute; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }
.bg-grid::before {
  content: ""; position: absolute; inset: -1px;
  background-image: linear-gradient(to right, rgba(12,14,20,.045) 1px, transparent 1px), linear-gradient(to bottom, rgba(12,14,20,.045) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 0%, #000 30%, transparent 75%);
          mask-image: radial-gradient(ellipse 70% 60% at 50% 0%, #000 30%, transparent 75%);
}
.bg-grid::after {
  content: ""; position: absolute; left: 50%; top: -260px; width: 1300px; height: 820px; transform: translateX(-50%);
  background: radial-gradient(closest-side at 32% 50%, rgba(106,7,119,.13), transparent 70%), radial-gradient(closest-side at 70% 48%, rgba(0,138,92,.12), transparent 70%);
  filter: blur(10px);
}

/* ---------- hero ---------- */
.hero { position: relative; isolation: isolate; padding: 88px 0 40px; text-align: center; }
.pill {
  display: inline-flex; align-items: center; gap: 10px; padding: 6px 14px 6px 6px;
  border: 1px solid var(--line); border-radius: 999px; background: rgba(255,255,255,.8);
  font-size: 13.5px; color: var(--muted); font-weight: 500; box-shadow: var(--shadow-sm);
}
.pill b { font-weight: 600; color: #fff; background: var(--grad); padding: 3px 10px; border-radius: 999px; font-size: 12px; letter-spacing: .01em; }
.hero h1 { font-size: clamp(42px, 7vw, 84px); margin: 26px auto 22px; max-width: 14ch; letter-spacing: -0.045em; line-height: 1.02; }
.hero .lead { font-size: clamp(18px, 2vw, 21px); color: var(--muted); max-width: 40rem; margin: 0 auto; line-height: 1.55; }
.hero__cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin-top: 34px; }
.hero__note { margin-top: 18px; font-size: 13.5px; color: var(--muted); display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }
.hero__note span { display: inline-flex; align-items: center; gap: 6px; }
.hero__note svg { width: 15px; height: 15px; color: var(--green); }

.stage { position: relative; margin: 64px auto 0; max-width: 1120px; }
.stage::before { content: ""; position: absolute; inset: 8% 4% -4%; background: var(--grad); filter: blur(70px); opacity: .18; border-radius: 40px; z-index: -1; }
.window { border-radius: 16px; background: #fff; box-shadow: var(--shadow-lg); border: 1px solid rgba(12,14,20,.08); overflow: hidden; }
.window svg { width: 100%; height: auto; }

/* ---------- hero SVG animation ---------- */
.x-ui  { font-family: "Geist", Aptos, "Segoe UI", system-ui, sans-serif; }
.x-doc { font-family: Georgia, "Times New Roman", serif; }
/* Negative delay: the loop starts mid-cycle, so visitors land on the linked state. */
.hl-mark, .hl-badge, .link-path, .chip-active, .cursor, .cell-sel { animation-delay: -3.6s !important; }
.hl-mark { transform-box: fill-box; transform-origin: left center; animation: hl 7s ease-in-out infinite; }
.hl-badge { animation: fadeIn 7s ease-in-out infinite; }
.link-path { stroke-dasharray: 6 6; animation: dash 1.2s linear infinite, fadeIn 7s ease-in-out infinite; }
.chip-active { animation: chip 7s ease-in-out infinite; }
.cursor { animation: cursor 7s cubic-bezier(.6,.05,.3,1) infinite; }
.cell-sel { animation: cellsel 7s ease-in-out infinite; }
@keyframes hl { 0%, 30% { transform: scaleX(0); } 42%, 88% { transform: scaleX(1); } 96%, 100% { transform: scaleX(0); } }
@keyframes fadeIn { 0%, 36% { opacity: 0; } 46%, 88% { opacity: 1; } 96%, 100% { opacity: 0; } }
@keyframes dash { to { stroke-dashoffset: -12; } }
@keyframes chip { 0%, 26% { opacity: .0; } 32%, 88% { opacity: 1; } 96%, 100% { opacity: 0; } }
@keyframes cursor { 0%, 6% { transform: translate(120px, 150px); } 24%, 30% { transform: translate(0, 0); } 31% { transform: translate(0, 0) scale(.9); } 33%, 88% { transform: translate(0, 0); } 100% { transform: translate(120px, 150px); } }
@keyframes cellsel { 0%, 24% { opacity: 0; } 28%, 92% { opacity: 1; } 100% { opacity: 0; } }

/* ---------- audience strip ---------- */
.audience { padding: 56px 0 24px; text-align: center; }
.audience p { font-size: 13px; letter-spacing: .08em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.audience ul { list-style: none; padding: 0; margin: 18px 0 0; display: flex; justify-content: center; flex-wrap: wrap; gap: 10px 38px; }
.audience li { font-size: 19px; font-weight: 550; color: var(--ink); letter-spacing: -0.02em; opacity: .75; }

/* ---------- sections ---------- */
.section { padding: 110px 0; position: relative; }
.section--soft { background: var(--soft); border-top: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); }
.head { max-width: 760px; margin: 0 auto 60px; text-align: center; }
.head--left { margin-left: 0; text-align: left; }
.kicker { display: inline-block; font-size: 13px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; margin-bottom: 16px; }
.kicker.grad-text { padding-bottom: 1px; }
.head h2 { font-size: clamp(32px, 4.4vw, 52px); }
.head p { margin-top: 18px; font-size: 19px; color: var(--muted); }

/* before / after */
.compare { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.panel { border-radius: var(--radius); border: 1px solid var(--line); background: #fff; padding: 30px; box-shadow: var(--shadow-sm); }
.panel h3 { font-size: 20px; letter-spacing: -0.02em; display: flex; align-items: center; gap: 10px; }
.panel .tag { font-size: 11.5px; font-weight: 600; letter-spacing: .05em; text-transform: uppercase; padding: 4px 10px; border-radius: 999px; }
.panel--before .tag { background: #f3f4f7; color: var(--muted); }
.panel--after { border-color: rgba(0,138,92,.28); background: linear-gradient(180deg, rgba(0,138,92,.035), #fff 40%); }
.panel--after .tag { background: rgba(0,138,92,.1); color: var(--green-ink); }
.panel ul { list-style: none; padding: 0; margin: 20px 0 0; display: grid; gap: 12px; }
.panel li { display: grid; grid-template-columns: 22px 1fr; gap: 10px; font-size: 15.5px; color: var(--ink-2); }
.panel li svg { width: 18px; height: 18px; margin-top: 3px; }
.panel--before li svg { color: #b3b8c4; }
.panel--after li svg { color: var(--green); }
.panel__art { margin-top: 26px; border-radius: 12px; border: 1px solid var(--line); background: var(--soft); overflow: hidden; }

/* bento */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 20px; }
.card { grid-column: span 3; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); overflow: hidden; display: flex; flex-direction: column; box-shadow: var(--shadow-sm); transition: transform .25s ease, box-shadow .25s ease; }
.card:hover { transform: translateY(-3px); box-shadow: 0 1px 0 rgba(12,14,20,.04), 0 22px 50px -24px rgba(40,20,70,.25); }
.card--wide { grid-column: span 4; }
.card--narrow { grid-column: span 2; }
.card__art { background: var(--soft); border-bottom: 1px solid var(--line-2); height: 250px; display: grid; place-items: center; overflow: hidden; }
.card__art svg { width: 100%; height: 100%; }
.card__body { padding: 26px 28px 30px; }
.card__body h3 { font-size: 21px; letter-spacing: -0.025em; }
.card__body p { margin-top: 8px; color: var(--muted); font-size: 15.5px; }

/* 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: 30px 28px; border-radius: var(--radius); background: #fff; border: 1px solid var(--line); }
.step__n { font-size: 13px; font-weight: 600; font-variant-numeric: tabular-nums; color: var(--purple); display: inline-flex; align-items: center; gap: 10px; }
.step__n::after { content: ""; width: 34px; height: 1px; background: var(--grad); }
.step h3 { margin-top: 18px; font-size: 21px; letter-spacing: -0.025em; }
.step p { margin-top: 8px; color: var(--muted); font-size: 15.5px; }
.kbd { display: inline-block; font-size: 12.5px; font-weight: 600; padding: 1px 7px; border-radius: 6px; border: 1px solid var(--line); border-bottom-width: 2px; background: #fff; color: var(--ink); }

/* use cases */
.cases { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.case { padding: 26px 24px 28px; border-radius: var(--radius); border: 1px solid var(--line); background: #fff; }
.case__icon { width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center; background: linear-gradient(135deg, rgba(106,7,119,.1), rgba(0,138,92,.1)); color: var(--purple); }
.case__icon svg { width: 20px; height: 20px; }
.case h3 { margin-top: 18px; font-size: 18px; letter-spacing: -0.02em; }
.case p { margin-top: 8px; font-size: 15px; color: var(--muted); }
.case em { font-style: normal; display: block; margin-top: 14px; font-size: 13px; color: var(--ink); background: var(--soft); border: 1px solid var(--line-2); border-radius: 8px; padding: 8px 10px; font-family: Aptos, "Segoe UI", system-ui, sans-serif; }

/* pricing */
.plans { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; max-width: 900px; margin: 0 auto; }
.plan { position: relative; border-radius: 22px; padding: 34px 32px; background: #fff; border: 1px solid var(--line); display: flex; flex-direction: column; }
.plan--featured { border: 1px solid transparent; background: linear-gradient(#fff, #fff) padding-box, var(--grad) border-box; box-shadow: var(--shadow-lg); }
.plan__name { font-size: 15px; font-weight: 600; color: var(--muted); }
.plan__price { margin-top: 10px; font-size: 44px; font-weight: 600; letter-spacing: -0.04em; color: var(--ink); line-height: 1; }
.plan__price small { font-size: 15px; font-weight: 500; letter-spacing: 0; color: var(--muted); }
.plan__desc { margin-top: 12px; color: var(--muted); font-size: 15.5px; }
.plan ul { list-style: none; padding: 0; margin: 24px 0 30px; display: grid; gap: 11px; flex: 1; }
.plan li { display: grid; grid-template-columns: 20px 1fr; gap: 10px; font-size: 15px; }
.plan li svg { width: 17px; height: 17px; margin-top: 3px; color: var(--green); }
.plan .btn { justify-content: center; }
.plan__badge { position: absolute; top: -12px; left: 32px; font-size: 12px; font-weight: 600; color: #fff; background: var(--grad); padding: 4px 12px; border-radius: 999px; }

/* faq */
.faq { max-width: 820px; margin: 0 auto; border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { list-style: none; cursor: pointer; padding: 24px 0; font-size: 18px; font-weight: 550; color: var(--ink); letter-spacing: -0.015em; display: flex; justify-content: space-between; gap: 24px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-weight: 400; font-size: 24px; line-height: 1; color: var(--muted); transition: transform .2s ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { padding: 0 0 24px; color: var(--muted); max-width: 680px; }

/* final cta */
.final { padding: 40px 0 120px; }
.final__card { position: relative; overflow: hidden; border-radius: 28px; padding: 76px 40px; text-align: center; color: #fff; background: #0c0e14; }
.final__card::before { content: ""; position: absolute; inset: -40% -10% auto; height: 120%; background: radial-gradient(closest-side at 30% 60%, rgba(106,7,119,.75), transparent), radial-gradient(closest-side at 72% 55%, rgba(0,138,92,.6), transparent); filter: blur(30px); opacity: .9; }
.final__card > * { position: relative; }
.final__card h2 { color: #fff; font-size: clamp(32px, 4.6vw, 56px); max-width: 16ch; margin: 0 auto; }
.final__card p { margin: 18px auto 0; max-width: 34rem; color: rgba(255,255,255,.75); font-size: 18px; }
.final__card .hero__cta { margin-top: 32px; }
.final__card .btn--ghost { background: rgba(255,255,255,.08); color: #fff; border-color: rgba(255,255,255,.2); box-shadow: none; }
.final__card .btn--ghost:hover { background: rgba(255,255,255,.14); }
.final__card .btn--primary { background: #fff; color: var(--ink); }

/* footer */
.footer { border-top: 1px solid var(--line); padding: 44px 0 52px; font-size: 14px; color: var(--muted); }
.footer__inner { display: flex; align-items: center; gap: 28px; flex-wrap: wrap; }
.footer__inner img { height: 18px; width: auto; }
.footer__links { display: flex; gap: 22px; margin-left: auto; flex-wrap: wrap; }
.footer__links a:hover { color: var(--ink); }

/* legal pages */
.legal { max-width: 760px; padding: 72px 24px 110px; margin: 0 auto; }
.legal h1 { font-size: 44px; margin-bottom: 8px; }
.legal .meta { color: var(--muted); margin-bottom: 40px; }
.legal h2 { font-size: 20px; margin: 34px 0 10px; letter-spacing: -0.02em; }
.legal h3 { font-size: 16px; margin: 20px 0 6px; letter-spacing: -0.01em; }
.legal p, .legal li, .legal address { color: var(--ink-2); font-size: 16px; font-style: normal; }
.legal p + p { margin-top: 10px; }
.legal a { color: var(--green-ink); text-decoration: underline; text-underline-offset: 3px; }

/* reveal (only when JS is present, so no-JS visitors see everything) */
.js .reveal { opacity: 0; }
.js .reveal.in { animation: rise .7s cubic-bezier(.2,.7,.2,1) both; }
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

/* responsive */
@media (max-width: 1000px) {
  .nav__links { display: none; }
  .bento .card, .bento .card--wide, .bento .card--narrow { grid-column: span 6; }
  .cases { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  body { font-size: 16px; }
  .hero { padding-top: 56px; }
  .section { padding: 80px 0; }
  .compare, .plans, .cases { grid-template-columns: 1fr; }
  .nav__right .btn { display: none; }
  .final__card { padding: 56px 22px; }
  .footer__links { margin-left: 0; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal { opacity: 1; transform: none; }
  .hl-mark { transform: none; }
}

/* ---------- start page ---------- */
.start-hero { position: relative; isolation: isolate; padding: 80px 0 30px; text-align: center; }
.start-hero h1 { font-size: clamp(38px, 6vw, 68px); margin: 22px auto 18px; max-width: 16ch; letter-spacing: -0.045em; line-height: 1.04; }
.start-hero .lead { font-size: clamp(17px, 1.9vw, 20px); color: var(--muted); max-width: 38rem; margin: 0 auto; }
.toc { list-style: none; padding: 0; margin: 36px auto 0; display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; max-width: 900px; counter-reset: t; }
.toc a { display: inline-flex; align-items: center; gap: 8px; padding: 7px 14px 7px 8px; border: 1px solid var(--line); border-radius: 999px; background: #fff; font-size: 14px; font-weight: 500; color: var(--ink-2); box-shadow: var(--shadow-sm); transition: border-color .15s, transform .15s; }
.toc a:hover { border-color: #cfd3dc; transform: translateY(-1px); }
.toc b { width: 22px; height: 22px; border-radius: 50%; display: grid; place-items: center; font-size: 12px; color: #fff; background: var(--grad); }

.walk { list-style: none; padding: 0; margin: 0; position: relative; }
.walk::before { content: ""; position: absolute; left: 21px; top: 30px; bottom: 30px; width: 2px; background: linear-gradient(#6a0777, #008a5c); opacity: .18; border-radius: 2px; }
.ws { position: relative; display: grid; grid-template-columns: 44px minmax(0, 5fr) minmax(0, 7fr); gap: 20px 36px; align-items: start; padding: 48px 0; scroll-margin-top: 90px; }
.ws + .ws { border-top: 1px solid var(--line-2); }
.ws__n { align-self: start; margin-top: -6px; width: 44px; height: 44px; border-radius: 50%; display: grid; place-items: center; font-weight: 600; font-size: 16px; color: #fff; background: var(--grad); box-shadow: 0 0 0 6px #fff, 0 8px 20px -8px rgba(106,7,119,.5); position: relative; z-index: 1; }
.ws__text h2 { font-size: clamp(24px, 2.6vw, 30px); letter-spacing: -0.03em; }
.ws__text p { margin-top: 12px; color: var(--muted); font-size: 16.5px; }
.ws__text ol, .ws__text ul { margin: 14px 0 0; padding-left: 20px; color: var(--ink-2); font-size: 15.5px; display: grid; gap: 6px; }
.ws__text .note { margin-top: 16px; font-size: 14.5px; color: var(--ink-2); background: var(--soft); border: 1px solid var(--line-2); border-radius: 12px; padding: 12px 14px; }
.ws__text .note a, .help a.inline { color: var(--green-ink); text-decoration: underline; text-underline-offset: 3px; }
.ui { font-weight: 600; color: var(--ink); background: #f2f3f7; border: 1px solid var(--line); border-radius: 6px; padding: 0 6px; font-size: .92em; white-space: nowrap; }
.ws__art { border-radius: var(--radius); background: var(--soft); border: 1px solid var(--line); overflow: hidden; box-shadow: var(--shadow-sm); }
.ws__art svg { width: 100%; height: auto; }
.pulse-ring { transform-box: fill-box; transform-origin: center; animation: ring 2.4s ease-out infinite; }
@keyframes ring { 0% { opacity: .55; transform: scale(1); } 80%, 100% { opacity: 0; transform: scale(1.35); } }
.draw-box { stroke-dasharray: 7 5; animation: march 1s linear infinite; }
@keyframes march { to { stroke-dashoffset: -12; } }
.mono { font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace; }

.help { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.help .case p { margin-top: 8px; }
.help .case .btn { margin-top: 18px; }

@media (max-width: 900px) {
  .ws { grid-template-columns: 44px minmax(0, 1fr); }
  .ws__art { grid-column: 2; }
  .help { grid-template-columns: 1fr; }
}
@media (max-width: 520px) {
  .walk::before { display: none; }
  .ws { grid-template-columns: minmax(0, 1fr); }
  .ws__art { grid-column: 1; }
}