/* uponu marketing site. See docs/design-direction.md before changing tokens. */
:root {
  --canvas: #000;
  --card: #0a0a0a;
  --raised: #111;
  --ink: #f2f2f2;
  --body: rgba(242, 242, 242, .74);
  --mute: #8a8a8a;
  --ash: #5c5c5c;
  --hair: rgba(255, 255, 255, .09);
  --hair-2: rgba(255, 255, 255, .16);
  --mint: #9ed3b7;
  --red: #ff5a6a;
  --r-btn: 8px;
  --r-card: 12px;
  --wrap: 1200px;
  --gutter: 24px;
  --display: "Inter Tight", "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --ease: cubic-bezier(.16, 1, .3, 1);
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; background: var(--canvas); overflow-x: clip; }
body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; }
p { margin: 0; }
::selection { background: rgba(158, 211, 183, .3); color: #fff; }
:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; border-radius: 4px; }
[hidden] { display: none !important; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
@media (max-width: 640px) { :root { --gutter: 16px; } }

/* ---------- type ---------- */
h1, h2 { font-family: var(--display); font-weight: 600; letter-spacing: -0.035em; line-height: 1.04; text-wrap: balance; margin: 0; }
h1 { font-size: clamp(38px, 5.4vw, 68px); }
h2 { font-size: clamp(30px, 3.6vw, 46px); letter-spacing: -0.03em; line-height: 1.08; }
h2 .sub, h1 .sub { display: block; color: var(--mute); }
h3 { font-family: var(--display); font-weight: 600; font-size: 17px; line-height: 1.35; letter-spacing: -0.015em; margin: 0; }
em.mint { font-style: normal; color: var(--mint); }
.label { font-size: 13.5px; font-weight: 500; color: var(--mute); line-height: 1.4; }
.lede { font-size: 18px; line-height: 1.6; color: var(--body); text-wrap: pretty; }
.body { color: var(--body); }
.mute { color: var(--mute); }
.small { font-size: 14px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font: 500 15px/1 var(--sans); letter-spacing: -0.005em;
  height: 44px; padding: 0 18px; border-radius: var(--r-btn); border: 1px solid transparent;
  background: var(--ink); color: #000; text-decoration: none; cursor: pointer; white-space: nowrap;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.btn:hover { background: #fff; }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--hair-2); }
.btn.ghost:hover { background: var(--raised); border-color: rgba(255, 255, 255, .28); }
.btn.sm { height: 36px; padding: 0 14px; font-size: 14px; }
.btn .arr { transition: transform .2s var(--ease); }
.btn:hover .arr { transform: translateX(3px); }

/* ---------- nav ---------- */
.top { position: sticky; top: 0; z-index: 30; background: rgba(0, 0, 0, .8); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--hair); }
.top .wrap { display: flex; align-items: center; gap: 26px; height: 64px; }
.logo { font-family: var(--display); font-weight: 600; font-size: 21px; letter-spacing: -0.04em; color: var(--ink); text-decoration: none; line-height: 1; }
.nav { display: flex; gap: 24px; margin-right: auto; }
.nav a, .top .link, .lang { color: var(--body); text-decoration: none; font-size: 14.5px; font-weight: 500; transition: color .15s; }
.nav a:hover, .top .link:hover, .lang:hover { color: var(--ink); }
.lang { color: var(--mute); }
@media (max-width: 900px) { .nav { display: none; } .top .wrap { gap: 16px; } .top .link { margin-left: auto; } }
@media (max-width: 420px) { .top .link { display: none; } .lang { margin-left: auto; } }

/* ---------- hero ---------- */
.hero { position: relative; padding: 104px 0 0; text-align: center; }
.hero .wrap { display: flex; flex-direction: column; align-items: center; }
.hero h1 { max-width: 20ch; }
.hero .lede { max-width: 50ch; margin: 24px auto 0; }
.hero .ctas { display: flex; gap: 10px; flex-wrap: wrap; justify-content: center; margin-top: 34px; }
.hero .fine { margin-top: 18px; font-size: 13.5px; color: var(--mute); }
.hero .fine b { color: var(--body); font-weight: 500; }
@media (max-width: 640px) { .hero { padding-top: 56px; } .hero .lede { font-size: 16.5px; margin-top: 18px; } .hero .ctas { width: 100%; flex-direction: column; } .hero .ctas .btn { width: 100%; } }

/* staged reveal */
.rise { opacity: 0; transform: translateY(12px); animation: rise .7s var(--ease) forwards; }
.rise.d1 { animation-delay: .06s; } .rise.d2 { animation-delay: .12s; } .rise.d3 { animation-delay: .18s; } .rise.d4 { animation-delay: .26s; } .rise.d5 { animation-delay: .4s; }
@keyframes rise { to { opacity: 1; transform: none; } }

/* the stage: the two light surfaces, framed */
.stage { position: relative; width: 100%; margin-top: 64px; text-align: left; }
.stage .frame {
  display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  background: var(--card); border: 1px solid var(--hair-2); border-radius: var(--r-card); overflow: hidden;
}
.stage .cell { padding: 18px 22px 22px; min-width: 0; }
.stage .cell + .cell { border-left: 1px solid var(--hair); }
.stage .cap { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 14px; }
.stage .cap .label { color: var(--ink); min-width: 0; }
.stage .cap .time { flex: none; white-space: nowrap; font-size: 13px; color: var(--mute); }
#demo { height: 560px; }
#demo:empty { background: #f7f6f2; border-radius: var(--r-card); border: 1px solid var(--hair-2); }
.stage .phone-cell { display: flex; flex-direction: column; align-items: center; }
.stage .phone-cell .cap { align-self: stretch; }
@media (max-width: 900px) {
  .stage { margin-top: 48px; }
  .stage .frame { grid-template-columns: 1fr; }
  .stage .cell + .cell { border-left: 0; border-top: 1px solid var(--hair); }
  #demo { height: 520px; }
}
@media (max-width: 640px) { .stage .cell { padding: 14px 14px 18px; } #demo { height: 500px; } }

/* WhatsApp phone, dark mode, the real colours */
.phone { width: 100%; max-width: 330px; border-radius: 40px; background: #0a0a0a; padding: 10px; border: 1px solid rgba(255, 255, 255, .14); position: relative; }
.phone::after { content: ""; position: absolute; top: 20px; left: 50%; transform: translateX(-50%); width: 96px; height: 26px; border-radius: 16px; background: #000; }
.screen { border-radius: 31px; overflow: hidden; background: #0b141a; color: #e9edef; font-size: 14px; line-height: 1.4; min-height: 560px; display: flex; flex-direction: column; }
.wa-top { background: #1f2c34; padding: 54px 14px 10px; display: flex; align-items: center; gap: 10px; border-bottom: 1px solid rgba(255, 255, 255, .06); }
.wa-av { width: 36px; height: 36px; border-radius: 50%; background: #00a884; color: #0b141a; display: grid; place-items: center; font-family: var(--display); font-weight: 600; font-size: 16px; line-height: 1; }
.wa-top b { display: block; font-size: 15px; font-weight: 500; color: #e9edef; }
.wa-top span { font-size: 12px; color: #8696a0; }
.wa-body { padding: 14px 10px 18px; display: flex; flex-direction: column; gap: 7px; flex: 1; }
.wa-day { align-self: center; background: #182229; border-radius: 8px; padding: 3px 10px; font-size: 11.5px; color: #8696a0; margin-bottom: 4px; }
.wa { max-width: 88%; background: #202c33; border-radius: 9px; padding: 7px 9px 5px; position: relative; font-size: 13.5px; }
.wa.out { align-self: flex-end; background: #005c4b; }
.wa b { font-weight: 500; color: #e9edef; }
.wa .muted { color: #8696a0; }
.wa time { display: block; text-align: right; font-size: 10.5px; color: #8696a0; margin-top: 3px; }
.wa.out time { color: #9fd9c6; }
.wa-btn { display: block; margin: 8px -9px -5px; border-top: 1px solid rgba(255, 255, 255, .08); text-align: center; padding: 8px; color: #53bdeb; font-weight: 500; font-size: 13.5px; }
.quote { background: rgba(0, 0, 0, .22); border-left: 3px solid #06cf9c; border-radius: 5px; padding: 5px 8px; margin-bottom: 5px; font-size: 12.5px; color: #8696a0; }
.quote b { color: #06cf9c; display: block; font-size: 12px; }
.wa-in { margin-top: auto; display: flex; gap: 8px; padding: 10px 8px 6px; }
.wa-in span { flex: 1; background: #2a3942; border-radius: 20px; height: 38px; display: flex; align-items: center; padding: 0 14px; color: #8696a0; font-size: 13.5px; }
.wa-in i { width: 38px; height: 38px; border-radius: 50%; background: #00a884; }
/* sequenced */
.seq .wa { opacity: 0; transform: translateY(8px); transition: opacity .4s var(--ease), transform .4s var(--ease); }
.seq .wa.on { opacity: 1; transform: none; }

/* ---------- client band ---------- */
.clients { border-top: 1px solid var(--hair); border-bottom: 1px solid var(--hair); margin-top: 96px; }
.clients .wrap { display: grid; grid-template-columns: minmax(0, 230px) 1fr; padding: 0 var(--gutter); }
.clients .lab { display: flex; align-items: center; padding: 22px 24px 22px 0; border-right: 1px solid var(--hair); }
.clients .lab .label { max-width: 16ch; }
.clients ul { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.clients li { display: flex; align-items: center; justify-content: center; gap: 12px; padding: 26px 12px; border-left: 1px solid var(--hair); font-family: var(--display); font-size: 19px; font-weight: 600; letter-spacing: -0.02em; color: var(--ink); opacity: .9; transition: opacity .2s; }
.clients li:first-child { border-left: 0; }
.clients li:hover { opacity: 1; }
.clients img { width: 34px; height: 34px; border-radius: 8px; }
@media (max-width: 760px) {
  .clients { margin-top: 64px; }
  .clients .wrap { grid-template-columns: 1fr; }
  .clients .lab { border-right: 0; border-bottom: 1px solid var(--hair); padding: 16px 0; }
  .clients li { font-size: 16px; gap: 8px; padding: 18px 6px; }
  .clients img { width: 28px; height: 28px; }
}

/* ---------- chapters ---------- */
.chapter { padding: 112px 0; border-top: 1px solid var(--hair); position: relative; scroll-margin-top: 64px; }
.chapter .head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 32px 48px; align-items: start; margin-bottom: 64px; }
.chapter .mark { padding-top: 6px; font-size: 15px; font-weight: 500; color: var(--mute); }
.chapter .intro { margin-top: 22px; font-size: 17px; color: var(--body); max-width: 58ch; text-wrap: pretty; }
@media (max-width: 900px) {
  .chapter { padding: 72px 0; }
  .chapter .head { grid-template-columns: 1fr; gap: 14px; margin-bottom: 44px; }
  .chapter .mark { padding-top: 0; }
  .chapter .intro { margin-top: 16px; font-size: 16px; }
}

/* hairline grid: cells separated by 1px */
.hgrid { display: grid; gap: 1px; background: var(--hair); border: 1px solid var(--hair); border-radius: var(--r-card); overflow: hidden; }
.hgrid > * { background: var(--canvas); padding: 26px 24px; min-width: 0; }
.hgrid h3 { margin-bottom: 8px; }
.hgrid p { color: var(--mute); font-size: 15px; line-height: 1.55; }
.hgrid code { font-family: var(--mono); font-size: 13px; color: var(--body); }
@media (max-width: 640px) { .hgrid > * { padding: 20px 18px; } }

/* ---------- 01 compare ---------- */
.compare .grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.side { background: var(--card); border: 1px solid var(--hair); border-radius: var(--r-card); padding: 24px; display: flex; flex-direction: column; }
.side.asks { border-color: var(--hair-2); }
.side .label { margin-bottom: 20px; }
.side.asks .label { color: var(--ink); }
.chat { display: flex; flex-direction: column; gap: 9px; }
.b { max-width: 90%; padding: 10px 13px; border-radius: 12px; font-size: 15px; line-height: 1.45; }
.b.v { align-self: flex-end; background: var(--ink); color: #000; border-bottom-right-radius: 4px; }
.b.ai { align-self: flex-start; background: rgba(255, 255, 255, .06); border: 1px solid var(--hair); color: var(--body); border-bottom-left-radius: 4px; }
.b.team { align-self: flex-start; background: rgba(158, 211, 183, .1); border: 1px solid rgba(158, 211, 183, .3); color: var(--ink); border-bottom-left-radius: 4px; }
.b.team small { display: block; font-size: 12.5px; font-weight: 500; color: var(--mint); margin-bottom: 3px; }
.asked { align-self: flex-start; font-size: 13.5px; font-weight: 500; color: var(--mint); padding: 2px 4px; }
.wrong { text-decoration: underline wavy var(--red); text-decoration-thickness: 1.5px; text-underline-offset: 4px; color: var(--ink); }
.side .verdict { margin-top: auto; padding-top: 22px; font-size: 14.5px; color: var(--mute); }
.side.asks .verdict { color: var(--body); }
.play .team-ans { opacity: 0; transform: translateY(6px); transition: opacity .4s var(--ease), transform .4s var(--ease); }
.play.done .team-ans { opacity: 1; transform: none; }
@media (max-width: 820px) { .compare .grid { grid-template-columns: minmax(0, 1fr); } .side { padding: 20px 18px; } }

/* ---------- 02 loop ---------- */
.loop .grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr); gap: 48px 64px; align-items: start; }
.loop .win { min-width: 0; }
.steps { list-style: none; margin: 0; padding: 0; counter-reset: s; }
.steps li { counter-increment: s; display: grid; grid-template-columns: 40px 1fr; gap: 10px; padding: 22px 0; border-top: 1px solid var(--hair); }
.steps li:first-child { border-top: 0; padding-top: 0; }
.steps li::before { content: counter(s); font-family: var(--display); font-weight: 600; font-size: 15px; letter-spacing: -0.01em; color: var(--mute); padding-top: 2px; }
.steps p { margin-top: 6px; color: var(--mute); font-size: 15px; line-height: 1.55; }
@media (max-width: 900px) { .loop .grid { grid-template-columns: minmax(0, 1fr); gap: 40px; } }

/* code window / trace */
.win { background: var(--card); border: 1px solid var(--hair-2); border-radius: var(--r-card); overflow: hidden; }
.win .bar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 12px 18px; border-bottom: 1px solid var(--hair); }
.win .bar .label { font-size: 13px; }
.trace { margin: 0; padding: 16px 18px 18px; font-family: var(--mono); font-size: 13px; line-height: 1.6; color: var(--body); overflow-x: auto; }
.trace .ln { display: grid; grid-template-columns: 64px 76px 1fr; gap: 14px; padding: 5px 0; white-space: nowrap; }
.trace .ts { color: var(--ash); }
.trace .who { color: var(--mute); }
.trace .who.o { color: var(--mint); }
.trace .what { color: var(--body); white-space: normal; }
.trace .what q { quotes: "“" "”"; color: var(--ink); }
.trace.seq .ln { opacity: 0; transform: translateX(-4px); transition: opacity .35s var(--ease), transform .35s var(--ease); }
.trace.seq .ln.on { opacity: 1; transform: none; }
@media (max-width: 640px) { .trace { font-size: 12px; padding: 14px; } .trace .ln { grid-template-columns: 56px 66px 1fr; gap: 10px; } }

/* ---------- 03 setup ---------- */
.setup .hgrid { grid-template-columns: repeat(5, minmax(0, 1fr)); counter-reset: st; }
.setup .hgrid > * { counter-increment: st; }
.setup .hgrid h3::before { content: counter(st) ". "; color: var(--mute); }
.snippet { margin-top: 16px; }
.snippet .code { display: flex; gap: 16px; align-items: center; padding: 16px 18px; }
.snippet code { font: 13.5px/1.6 var(--mono); color: var(--body); flex: 1; min-width: 0; overflow-x: auto; white-space: nowrap; scrollbar-width: thin; }
.snippet code .k { color: var(--ink); }
.snippet code .a { color: var(--mute); }
.snippet button { font: 500 13.5px/1 var(--sans); background: var(--ink); color: #000; border: 0; border-radius: 6px; padding: 9px 12px; cursor: pointer; flex: none; }
.snippet button:hover { background: #fff; }
@media (max-width: 1000px) { .setup .hgrid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (max-width: 640px) { .setup .hgrid { grid-template-columns: 1fr; } }

/* ---------- 04 features ---------- */
.features .hgrid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 900px) { .features .hgrid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .features .hgrid { grid-template-columns: 1fr; } }

/* ---------- 05 pricing ---------- */
.pricing .tiers { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.tier { background: var(--card); border: 1px solid var(--hair); border-radius: var(--r-card); padding: 24px; display: flex; flex-direction: column; gap: 20px; }
.tier.first { border-color: var(--hair-2); }
.tier .name { font-family: var(--display); font-size: 17px; font-weight: 600; letter-spacing: -0.015em; color: var(--ink); }
.tier .desc { color: var(--mute); font-size: 14.5px; margin-top: 4px; line-height: 1.5; }
.tier .price { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.tier .amt { font-family: var(--display); font-weight: 600; font-size: 40px; line-height: 1; letter-spacing: -0.04em; }
.tier .per { font-size: 13.5px; color: var(--mute); }
.tier ul { list-style: none; margin: 0; padding: 18px 0 0; border-top: 1px solid var(--hair); display: flex; flex-direction: column; gap: 9px; font-size: 14.5px; color: var(--body); }
.tier li { display: flex; gap: 10px; align-items: flex-start; }
.tier li::before { content: ""; flex: none; width: 12px; height: 1px; background: var(--ash); margin-top: 11px; }
.tier .btn { margin-top: auto; width: 100%; }
.pricing .note { margin-top: 18px; font-size: 14px; color: var(--mute); }
@media (max-width: 1000px) { .pricing .tiers { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .pricing .tiers { grid-template-columns: 1fr; } }

/* ---------- faq ---------- */
.faq .list { max-width: 800px; border-top: 1px solid var(--hair); }
.faq details { border-bottom: 1px solid var(--hair); }
.faq summary { cursor: pointer; list-style: none; padding: 20px 44px 20px 0; font-family: var(--display); font-size: 17px; font-weight: 600; letter-spacing: -0.015em; position: relative; color: var(--ink); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 6px; top: 16px; font-family: var(--display); font-weight: 400; font-size: 26px; line-height: 1; color: var(--mute); transition: transform .25s var(--ease); }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin: 0 0 22px; color: var(--body); max-width: 60ch; font-size: 15.5px; }
.faq details a { color: var(--ink); }

/* ---------- closing ---------- */
.final { padding: 128px 0 96px; border-top: 1px solid var(--hair); text-align: center; }
.final .wrap { display: flex; flex-direction: column; align-items: center; }
.final h2 { font-size: clamp(34px, 4.6vw, 60px); letter-spacing: -0.035em; }
.final .btn { margin-top: 32px; }
.final .wl { margin-top: 80px; padding-top: 36px; border-top: 1px solid var(--hair); width: 100%; max-width: 560px; text-align: left; }
.wl label { display: block; font-weight: 500; font-size: 15px; }
.wl p { margin: 4px 0 14px; color: var(--mute); font-size: 14.5px; }
.wl form { display: flex; gap: 8px; }
.wl input { flex: 1; min-width: 0; font: 15px var(--sans); height: 44px; padding: 0 14px; border-radius: var(--r-btn); border: 1px solid var(--hair-2); background: var(--card); color: var(--ink); outline: none; }
.wl input::placeholder { color: var(--ash); }
.wl input:focus { border-color: var(--ink); }
.wl .msg { min-height: 1.5em; margin-top: 10px; font-size: 14px; color: var(--body); }
.wl .msg.err { color: var(--red); }
@media (max-width: 640px) { .final { padding: 80px 0 64px; } .final .wl { margin-top: 56px; } .wl form { flex-direction: column; } }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--hair); padding: 40px 0 48px; font-size: 14px; color: var(--mute); }
footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 28px; align-items: center; }
footer .sp { margin-right: auto; display: flex; align-items: center; gap: 14px; }
footer a { color: var(--body); text-decoration: none; }
footer a:hover { color: var(--ink); }

/* ---------- legal pages ---------- */
.doc { max-width: 720px; padding: 72px var(--gutter) 96px; margin: 0 auto; }
.doc h1 { font-size: clamp(34px, 4vw, 48px); }
.doc .upd { font-size: 14px; color: var(--mute); margin: 14px 0 40px; }
.doc h2 { font-size: 20px; letter-spacing: -0.02em; line-height: 1.3; margin: 40px 0 10px; }
.doc p, .doc li { color: var(--body); font-size: 16px; }
.doc p { margin: 0 0 12px; }
.doc ul { padding-left: 20px; margin: 0 0 12px; }
.doc li { margin: 4px 0; }
.doc li b, .doc p b { color: var(--ink); font-weight: 500; }
.doc a { color: var(--ink); }
.doc hr { border: 0; border-top: 1px solid var(--hair); margin: 72px 0 40px; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .rise { animation: none; opacity: 1; transform: none; }
  .play .team-ans, .seq .wa, .trace.seq .ln { opacity: 1; transform: none; transition: none; }
}