/* wangkuwangku.com, light theme only (owner, 02.10.2026: no theme switch,
   so one calm light look). Tokens follow the app's design system (docs/design-system,
   accent Matcha: hue 150, chroma factor 0.09). Mobile first; no JavaScript. */

@font-face { font-family: "Plus Jakarta Sans"; src: url("fonts/jakarta-500.woff2") format("woff2"); font-weight: 400 500; font-display: swap; }
@font-face { font-family: "Plus Jakarta Sans"; src: url("fonts/jakarta-600.woff2") format("woff2"); font-weight: 600; font-display: swap; }
@font-face { font-family: "Plus Jakarta Sans"; src: url("fonts/jakarta-700.woff2") format("woff2"); font-weight: 700; font-display: swap; }
@font-face { font-family: "Plus Jakarta Sans"; src: url("fonts/jakarta-800.woff2") format("woff2"); font-weight: 800; font-display: swap; }
@font-face { font-family: "Martian Mono"; src: url("fonts/martian-500.woff2") format("woff2"); font-weight: 400 500; font-display: swap; }

:root {
  --sans: "Plus Jakarta Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "Martian Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --bg:        oklch(0.982 0.0072 150);
  --tint:      oklch(0.958 0.0144 150);
  --paper:     oklch(1 0 0);
  --line:      oklch(0.905 0.0144 150);
  --text:      oklch(0.235 0.0198 150);
  --text-2:    oklch(0.455 0.0198 150);
  --text-3:    oklch(0.54 0.0162 150);
  --primary:   oklch(0.83 0.1035 150);
  --on-primary:oklch(0.25 0.063 150);
  --accent:    oklch(0.50 0.1305 150);
  --container: oklch(0.935 0.0495 150);
  --on-container: oklch(0.32 0.0855 150);
  --mark:      color-mix(in oklch, var(--primary) 70%, transparent);
  --shadow:    0 1px 2px oklch(0.4 0.03 150 / 0.06), 0 12px 32px -12px oklch(0.4 0.06 150 / 0.18);
  --bezel:     oklch(0.22 0.012 150);
  --app-bg:    #eaf3eb; /* the app's own background, sampled from the screenshots */

  --wrap: 1120px;
  --gutter: clamp(16px, 5vw, 40px);
  --radius: 20px;
  color-scheme: light;
}


*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 72px; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; color: var(--text); overflow-x: clip;
  /* The page's motif: a faint dot grid, like graph paper under the receipts. */
  background: var(--bg) radial-gradient(color-mix(in oklch, var(--accent) 16%, transparent) 1px, transparent 1.4px) 0 0 / 24px 24px;
  font: 500 16px/1.6 var(--sans); text-rendering: optimizeLegibility; -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--accent); text-underline-offset: 3px; }
a:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 3px; border-radius: 6px; }
h1, h2, h3 { margin: 0; line-height: 1.15; letter-spacing: -0.02em; text-wrap: balance; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
.num { font-family: var(--mono); font-weight: 500; letter-spacing: -0.02em; }
.i { width: 1.25em; height: 1.25em; flex: none; }

.wrap { width: 100%; max-width: calc(var(--wrap) + 2 * var(--gutter)); margin: 0 auto; padding: 0 var(--gutter); }
.narrow { max-width: calc(760px + 2 * var(--gutter)); }

.skip { position: absolute; left: 12px; top: -60px; z-index: 20; background: var(--paper); color: var(--text); padding: 10px 14px; border-radius: 10px; box-shadow: var(--shadow); }
.skip:focus { top: 12px; }

/* Header */
.top {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in oklch, var(--bg) 82%, transparent);
  -webkit-backdrop-filter: saturate(1.4) blur(14px); backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid color-mix(in oklch, var(--line) 70%, transparent);
}
.top-in { display: flex; align-items: center; gap: 16px; min-height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text); text-decoration: none; font-weight: 800; font-size: 17px; letter-spacing: -0.01em; white-space: nowrap; }
.brand img { width: 26px; height: 32px; }
.links { display: none; gap: 4px; margin-left: 12px; }
.links a, .lang { color: var(--text-2); text-decoration: none; font-weight: 600; font-size: 15px; padding: 8px 12px; border-radius: 10px; }
.links a:hover, .lang:hover { color: var(--text); background: var(--tint); }
.top-end { margin-left: auto; display: flex; align-items: center; gap: 6px; }
.lang { min-width: 44px; min-height: 44px; display: inline-flex; align-items: center; justify-content: center; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: 0 18px;
  background: var(--primary); color: var(--on-primary); border-radius: 999px; font-weight: 700; text-decoration: none; white-space: nowrap;
}
.btn:hover { filter: brightness(0.97); }
.btn-small { font-size: 14px; padding: 0 16px; }
@media (min-width: 880px) { .links { display: flex; } }

/* Hero */
.hero { position: relative; isolation: isolate; padding: clamp(28px, 6vw, 72px) 0 clamp(48px, 7vw, 96px); }
.hero-in { display: grid; gap: 40px; align-items: center; }
.hero h1 { font-size: clamp(34px, 6.2vw, 60px); font-weight: 800; letter-spacing: -0.035em; max-width: 14ch; }
.hero mark { background: linear-gradient(transparent 58%, var(--mark) 58%, var(--mark) 92%, transparent 92%); color: inherit; padding: 0 2px; -webkit-box-decoration-break: clone; box-decoration-break: clone; }
.lead { margin-top: 20px; font-size: clamp(17px, 2vw, 19px); color: var(--text-2); max-width: 46ch; }
.get { margin-top: 28px; display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; }
.play { display: inline-block; border-radius: 10px; }
.play img { height: 56px; width: auto; }
.soon { display: inline-flex; align-items: center; gap: 8px; color: var(--text-2); font-weight: 600; font-size: 15px; }
@media (min-width: 960px) {
  .hero-in { grid-template-columns: 1fr 1fr; gap: 40px; }
}

/* Sections */
.sec { padding: clamp(64px, 9vw, 112px) 0; }
.sec-tint { background: var(--tint); }
.sec-head { max-width: 680px; margin-bottom: clamp(32px, 4vw, 48px); }
.kicker { color: var(--accent); font-weight: 800; font-size: 13px; letter-spacing: 0.12em; text-transform: uppercase; margin-bottom: 12px; }
.sec h2 { font-size: clamp(28px, 4.2vw, 42px); font-weight: 800; letter-spacing: -0.03em; }
.sub { margin-top: 16px; font-size: clamp(16px, 1.8vw, 18px); color: var(--text-2); max-width: 56ch; }

.split { display: grid; gap: 40px; align-items: center; justify-items: center; }
.split > .story, .split > .cards { justify-self: stretch; }
.split > .cards { align-self: start; }
@media (min-width: 880px) {
  .split { grid-template-columns: 1.2fr 0.8fr; gap: 64px; }
  .split-rev { grid-template-columns: 0.85fr 1.15fr; }
}

.cards { display: grid; gap: 12px; }
.card { display: flex; gap: 14px; align-items: flex-start; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.card h3 { font-size: 17px; font-weight: 700; letter-spacing: -0.01em; }
.card p { margin-top: 4px; color: var(--text-2); font-size: 15px; line-height: 1.55; }
.ic { width: 44px; height: 44px; border-radius: 14px; background: var(--container); color: var(--on-container); display: grid; place-items: center; flex: none; }
.ic .i { width: 24px; height: 24px; }
@media (min-width: 600px) { .cards { grid-template-columns: 1fr 1fr; } }

.ticks { display: grid; gap: 14px; margin-top: 28px; }
.ticks li { display: flex; gap: 12px; align-items: flex-start; font-size: 16px; }
.ticks .i { color: var(--accent); margin-top: 2px; }


.note { margin-top: 24px; display: flex; gap: 10px; align-items: flex-start; font-size: 15px; color: var(--text-2); background: var(--paper); border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; max-width: 56ch; }
.note .i { color: var(--accent); margin-top: 1px; }

.grid { display: grid; gap: 12px; }
.grid li { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.grid h3 { margin-top: 16px; font-size: 17px; font-weight: 700; }
.grid p { margin-top: 6px; color: var(--text-2); font-size: 15px; line-height: 1.55; }
@media (min-width: 600px) { .grid { grid-template-columns: 1fr 1fr; } }
@media (min-width: 960px) { .grid { grid-template-columns: repeat(3, 1fr); } }

/* Privacy */
.flow { display: grid; gap: 12px; }
.flow-col { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 24px; }
.flow-col h3 { display: flex; align-items: center; gap: 10px; font-size: 18px; font-weight: 800; }
.flow-col h3 .i { color: var(--accent); width: 26px; height: 26px; }
.flow-col ul { margin-top: 16px; display: grid; gap: 12px; }
.flow-col li { position: relative; padding-left: 20px; color: var(--text-2); font-size: 15.5px; line-height: 1.5; }
.flow-col li::before { content: ""; position: absolute; left: 2px; top: 0.6em; width: 7px; height: 7px; border-radius: 50%; background: var(--primary); }
@media (min-width: 760px) { .flow { grid-template-columns: 1fr 1fr; } }
.pledges { margin-top: 28px; display: grid; gap: 12px; }
.pledges li { display: flex; gap: 10px; align-items: flex-start; font-weight: 600; }
.pledges .i { color: var(--accent); margin-top: 2px; }
@media (min-width: 760px) { .pledges { grid-template-columns: 1fr 1fr; } }
.more-links { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 8px 28px; }
.more-links a { font-weight: 700; text-decoration: none; display: inline-flex; align-items: center; gap: 6px; min-height: 44px; }
.more-links a:hover { text-decoration: underline; }

/* Pricing */
.plans { display: grid; gap: 16px; max-width: 880px; }
.plan { background: var(--paper); border: 1px solid var(--line); border-radius: 24px; padding: 28px; }
.plan h3 { font-size: 20px; font-weight: 800; display: flex; align-items: center; flex-wrap: wrap; gap: 8px 10px; }
.pill { font-size: 12px; font-weight: 700; letter-spacing: 0.02em; background: var(--container); color: var(--on-container); padding: 4px 10px; border-radius: 999px; }
.amount { margin-top: 14px; display: flex; align-items: baseline; flex-wrap: wrap; gap: 4px 12px; }
.amount .num { font-size: 32px; }
.amount s.num { color: var(--text-3); font-size: 18px; }
.plan-note { margin-top: 4px; color: var(--text-2); font-size: 15px; }
.plan .ticks { margin-top: 22px; gap: 12px; }
.plan .ticks li { font-size: 15.5px; line-height: 1.5; }
.plan-pro { border: 2px solid var(--primary); box-shadow: var(--shadow); }
@media (min-width: 760px) { .plans { grid-template-columns: 1fr 1fr; } }
.fine { margin-top: 20px; color: var(--text-2); font-size: 14.5px; max-width: 70ch; }

/* FAQ */
.faq { display: grid; gap: 10px; }
.faq details { background: var(--paper); border: 1px solid var(--line); border-radius: 16px; }
.faq summary {
  list-style: none; cursor: pointer; padding: 18px 52px 18px 20px; font-weight: 700; font-size: 16.5px; position: relative; min-height: 44px;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 22px; top: 50%; width: 10px; height: 10px; margin-top: -7px;
  border-right: 2.5px solid var(--text-2); border-bottom: 2.5px solid var(--text-2); transform: rotate(45deg); transition: transform 0.2s;
}
.faq details[open] summary::after { transform: rotate(-135deg); margin-top: -2px; }
.faq details p { padding: 0 20px 20px; color: var(--text-2); }
@media (prefers-reduced-motion: reduce) { .faq summary::after { transition: none; } }

/* Closing call */
.cta { padding: clamp(64px, 9vw, 104px) 0; background: var(--container); color: var(--on-container); text-align: center; }
.cta-in { display: grid; justify-items: center; }
.cta h2 { font-size: clamp(28px, 4.2vw, 42px); font-weight: 800; letter-spacing: -0.03em; }
.cta p { margin-top: 12px; font-size: 17px; }
.cta .get { justify-content: center; }
.cta .soon { color: var(--on-container); }

/* Footer */
.foot { background: var(--bg); border-top: 1px solid var(--line); padding: 40px 0 48px; }
.foot-in { display: grid; gap: 28px; }
.foot-brand p { margin-top: 10px; color: var(--text-2); font-size: 15px; }
.foot-links { display: flex; flex-wrap: wrap; gap: 4px 8px; margin-left: -10px; }
.foot-links a { color: var(--text); text-decoration: none; font-weight: 600; font-size: 15px; padding: 10px; min-height: 44px; display: inline-flex; align-items: center; }
.foot-links a:hover { color: var(--accent); }
.foot-legal { display: grid; gap: 8px; color: var(--text-3); font-size: 13.5px; line-height: 1.55; max-width: 80ch; }
@media (min-width: 880px) {
  .foot-in { grid-template-columns: 1fr auto; }
  .foot-legal { grid-column: 1 / -1; }
}

/* Legal and help pages */
.doc { max-width: calc(780px + 2 * var(--gutter)); margin: 0 auto; padding: clamp(32px, 6vw, 64px) var(--gutter) 72px; }
.doc h1 { font-size: clamp(30px, 5vw, 44px); font-weight: 800; letter-spacing: -0.03em; }
.doc .muted { margin-top: 10px; color: var(--text-2); font-size: 15px; }
.doc article { background: var(--paper); border: 1px solid var(--line); border-radius: 24px; padding: clamp(22px, 4vw, 40px); margin-top: 28px; overflow-wrap: anywhere; }
.doc h2 { font-size: 21px; font-weight: 800; margin: 32px 0 10px; }
.doc article > h2:first-child { margin-top: 0; }
.doc h3 { font-size: 17px; font-weight: 700; margin: 22px 0 6px; }
.doc p, .doc li { color: var(--text); }
.doc p + p { margin-top: 12px; }
.doc ul, .doc ol { padding-left: 22px; margin: 10px 0; display: grid; gap: 8px; }
.doc ul { list-style: disc; }
.doc ol { list-style: decimal; }

/* Hero extras: facts as pills, soft green glow behind the phones */
.hero::before {
  content: ""; position: absolute; inset: -6% 0 -18%; z-index: -1; pointer-events: none;
  background:
    radial-gradient(40% 44% at 78% 42%, color-mix(in oklch, var(--primary) 46%, transparent), transparent 70%),
    radial-gradient(28% 30% at 10% 74%, color-mix(in oklch, var(--primary) 22%, transparent), transparent 70%);
}
.pills { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 8px; }
.pills li {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 14px 8px 12px; border-radius: 999px;
  background: color-mix(in oklch, var(--paper) 82%, transparent); border: 1px solid var(--line);
  font-weight: 700; font-size: 14px; line-height: 1.2;
}
.pills .i { color: var(--accent); width: 18px; height: 18px; }

/* Device: our own generic phone (not an Apple device): bezel, punch-hole camera,
   side buttons, glass glare. Screens are real app screenshots. */
.device {
  position: absolute; aspect-ratio: 390 / 870; padding: 2.6%; border-radius: 13% / 6%;
  background: linear-gradient(150deg, oklch(0.36 0.012 150), oklch(0.17 0.01 150) 42%, oklch(0.26 0.012 150));
  box-shadow:
    inset 0 0 0 1.5px oklch(0.45 0.012 150 / 0.7), inset 0 0 0 4px oklch(0.12 0.006 150),
    0 2px 4px oklch(0.2 0.03 150 / 0.2), 0 40px 70px -28px oklch(0.25 0.06 150 / 0.55), 0 18px 30px -18px oklch(0.25 0.05 150 / 0.4);
}
.device::before, .device::after { content: ""; position: absolute; width: 1.2%; border-radius: 2px; background: oklch(0.28 0.01 150); }
.device::before { right: -1%; top: 22%; height: 10%; }
.device::after { left: -1%; top: 18%; height: 14%; box-shadow: 0 0 0 0 transparent; }
.screen { position: relative; height: 100%; border-radius: 11% / 5.2%; overflow: hidden; background: var(--app-bg); padding-top: 9%; }
.screen img { width: 100%; height: auto; }
.screen::before { content: ""; position: absolute; top: 2.3%; left: 50%; width: 4.2%; aspect-ratio: 1; transform: translateX(-50%); border-radius: 50%; background: oklch(0.12 0.006 150); box-shadow: inset 0 0 0 1.5px oklch(0.24 0.01 150); z-index: 2; }
.screen::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: linear-gradient(115deg, oklch(1 0 0 / 0.22) 0%, oklch(1 0 0 / 0.06) 28%, transparent 42%); }

/* Stages: compositions of tilted devices and floating cards, sized by width */
.stage { position: relative; width: 100%; max-width: 560px; margin-inline: auto; }
.stage-hero { aspect-ratio: 1 / 1.18; }
.d-front { width: 50%; right: 8%; top: 2%; z-index: 2; transform: perspective(1600px) rotateY(-16deg) rotateX(5deg) rotateZ(1deg); }
.d-back { width: 43%; left: 6%; top: 12%; z-index: 1; transform: perspective(1600px) rotateY(18deg) rotateX(4deg) rotateZ(-6deg); filter: saturate(0.9); }
.d-back .screen::after { background: linear-gradient(115deg, oklch(1 0 0 / 0.1), transparent 40%), oklch(0.98 0.01 150 / 0.12); }

.float { position: absolute; margin: 0; z-index: 3; border-radius: 16px; overflow: hidden; background: var(--paper);
  box-shadow: 0 0 0 1px oklch(0.4 0.03 150 / 0.08), 0 24px 48px -16px oklch(0.25 0.06 150 / 0.4); }
.float img { width: 100%; height: auto; }
.f-voice { width: 58%; left: 0; bottom: 4%; transform: rotate(-2.5deg); }

.chip {
  position: absolute; z-index: 4; display: inline-flex; align-items: center; gap: 8px; white-space: nowrap;
  padding: 9px 14px 9px 11px; border-radius: 999px; background: var(--paper); color: var(--text);
  font-weight: 700; font-size: clamp(12px, 1.6vw, 14px); line-height: 1.2;
  box-shadow: 0 0 0 1px oklch(0.4 0.03 150 / 0.08), 0 14px 30px -12px oklch(0.25 0.06 150 / 0.45);
}
.chip .i { color: var(--accent); width: 18px; height: 18px; }
.chip-a { top: 4%; left: 2%; }
.chip-b { right: 0; bottom: 18%; }

@media (prefers-reduced-motion: no-preference) {
  .f-voice, .chip-a, .chip-b, .chip-c, .bubble, .f-receipt { animation: bob 7s ease-in-out infinite alternate; }
  .chip-a { animation-duration: 6s; animation-delay: -2s; }
  .chip-b { animation-duration: 8s; animation-delay: -4s; }
}
@keyframes bob { from { translate: 0 0; } to { translate: 0 -8px; } }

.stage-capture { aspect-ratio: 1 / 1.46; max-width: 440px; }
.d-tilt-r { width: 62%; left: 22%; top: 3%; transform: perspective(1600px) rotateY(-14deg) rotateX(4deg); }
.bubble {
  position: absolute; z-index: 3; left: 0; top: 14%; max-width: 58%; display: flex; gap: 10px; align-items: flex-start;
  padding: 14px 16px; border-radius: 20px 20px 20px 6px; background: var(--paper); font-weight: 600; font-size: clamp(13px, 1.6vw, 15px); line-height: 1.4;
  box-shadow: 0 0 0 1px oklch(0.4 0.03 150 / 0.08), 0 20px 40px -16px oklch(0.25 0.06 150 / 0.45);
}
.bubble .mic { flex: none; width: 34px; height: 34px; border-radius: 50%; display: grid; place-items: center; background: var(--primary); color: var(--on-primary); }
.bubble .mic .i { width: 18px; height: 18px; }
.chip-c { right: 0; bottom: 14%; }

.stage-ai { aspect-ratio: 1 / 1.4; max-width: 460px; }
.d-tilt-l { width: 60%; right: 6%; top: 2%; transform: perspective(1600px) rotateY(14deg) rotateX(4deg); }
.f-receipt { width: 58%; left: 0; bottom: 3%; transform: rotate(-2deg); }
.chip-d { right: 2%; top: 0; font-size: 12px; padding: 6px 12px; background: var(--container); color: var(--on-container); }

.stage-duo { aspect-ratio: 1 / 1.16; max-width: 520px; }
.d-fan-l { width: 46%; left: 6%; top: 8%; z-index: 1; transform: perspective(1600px) rotateY(16deg) rotateZ(-5deg); }
.d-fan-r { width: 46%; right: 6%; top: 0; z-index: 2; transform: perspective(1600px) rotateY(-16deg) rotateZ(4deg); }

/* AI steps */
.steps { margin-top: 28px; display: grid; gap: 18px; }
.steps li { display: flex; gap: 14px; align-items: flex-start; }
.steps h3 { font-size: 17px; font-weight: 700; }
.steps p { margin-top: 2px; color: var(--text-2); font-size: 15px; line-height: 1.55; }

/* Tinted sections get a torn-receipt edge at the top and bottom */
.zig { position: relative; }
.zig::before, .zig::after {
  content: ""; position: absolute; left: 0; right: 0; height: 12px; pointer-events: none;
  background: linear-gradient(135deg, var(--tint) 6px, transparent 0) 0 0 / 12px 12px repeat-x,
              linear-gradient(-135deg, var(--tint) 6px, transparent 0) 0 0 / 12px 12px repeat-x;
}
.zig::before { top: -12px; transform: scaleY(-1); }
.zig::after { bottom: -12px; }

/* Doodles (Open Doodles, CC0): ink follows the text colour, the fill is the accent */
.doodle { display: block; height: auto; color: var(--text); }
.doodle .acc { fill: var(--primary); }
.doodle .acc-s { stroke: var(--primary); }
.with-doodle { display: grid; gap: 20px; align-items: end; max-width: none; }
.with-doodle > div { max-width: 680px; }
.with-doodle .doodle { width: clamp(150px, 26vw, 230px); justify-self: end; }
@media (max-width: 759px) { .with-doodle .doodle { display: none; } }
@media (min-width: 760px) { .with-doodle { grid-template-columns: 1fr auto; } }
.doodle-wrap .doodle { width: min(260px, 70%); margin-top: 32px; }

.faq-wrap { display: grid; gap: 32px; }
.faq-side .doodle { width: min(240px, 60%); margin-top: 28px; }
@media (max-width: 879px) { .faq-side .doodle { display: none; } }
@media (min-width: 880px) { .faq-wrap { grid-template-columns: 0.8fr 1.2fr; gap: 56px; align-items: start; } .faq-side { position: sticky; top: 96px; } }

.cta .doodle { width: min(220px, 56vw); margin: 0 auto 20px; color: var(--on-container); }
.cta .doodle .acc { fill: var(--paper); }