/* keyplan.sg — marketing site. Brand layer: Hanken Grotesk + IBM Plex Mono,
   Kiln scarce (primary action + act-here only), warmth from paper and sand. */
:root {
  --kiln: #C24C22; --kiln-dark: #A03D1B; --graphite: #26231E;
  --paper: #F4F1EB; --card: #FFFDF9; --sand: #F1E9DC;
  --line: #E5E0D6; --line-soft: #EDE8DE; --ink: #26231E;
  --body: #55503F; --muted: #756D5B; --faint: #8A8377; --brick: #9B4A3A;
  --mono: 'IBM Plex Mono', monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--paper); font-family: 'Hanken Grotesk', sans-serif; color: var(--ink); -webkit-font-smoothing: antialiased; }
a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--kiln); }
img { max-width: 100%; height: auto; display: block; }
.mono { font-family: var(--mono); }
.wrap { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.eyebrow { font-family: var(--mono); font-size: 12px; letter-spacing: 0.16em; color: var(--muted); text-transform: uppercase; }

/* ---------- nav ---------- */
.nav { border-bottom: 1px solid var(--line); background: var(--paper); position: sticky; top: 0; z-index: 40; }
.nav-in { display: flex; align-items: center; gap: 36px; height: 72px; }
.brand { display: flex; align-items: center; gap: 9px; font-size: 21px; font-weight: 600; letter-spacing: -0.02em; }
.nav-links { display: flex; gap: 30px; margin-left: auto; align-items: center; font-size: 15px; }
.nav-links a { color: var(--body); }
.nav-links a.on { color: var(--ink); font-weight: 600; border-bottom: 2px solid var(--kiln); padding-bottom: 2px; }
.nav-cta { display: flex; gap: 20px; align-items: center; }
.nav-cta .signin { font-size: 15px; color: var(--body); }
.btn { display: inline-block; font-size: 15.5px; font-weight: 600; border-radius: 6px; padding: 13px 24px; transition: transform 140ms ease, box-shadow 140ms ease, background 140ms ease; }
.btn:active { transform: translateY(1px); }
.btn-dark { background: var(--graphite); color: var(--paper); padding: 10px 18px; font-size: 14.5px; }
.btn-dark:hover { color: #fff; background: #191713; }
.btn-kiln { background: var(--kiln); color: #fff; }
.btn-kiln:hover { color: #fff; background: var(--kiln-dark); box-shadow: 0 6px 18px rgba(194,76,34,0.25); }
.btn-line { border: 1.5px solid var(--graphite); color: var(--ink); }
.link-u { font-weight: 600; text-decoration: underline; text-underline-offset: 3px; }
.menu-btn { display: none; background: none; border: none; cursor: pointer; padding: 10px 4px; margin-left: auto; }
.menu-btn span { display: block; width: 20px; height: 2px; background: var(--ink); margin: 5px 0; transition: transform 180ms ease, opacity 180ms ease; }
.nav.open .menu-btn span:first-child { transform: translateY(3.5px) rotate(45deg); }
.nav.open .menu-btn span:last-child { transform: translateY(-3.5px) rotate(-45deg); }
.mobile-menu { display: none; }
.nav.open .mobile-menu { display: flex; flex-direction: column; gap: 4px; padding: 6px 0 18px; }
.mobile-menu a { padding: 11px 4px; font-size: 16.5px; color: var(--ink); border-top: 1px solid var(--line-soft); }

/* ---------- sections ---------- */
.sec { padding: 104px 0 0; }
h1 { margin: 0; font-size: clamp(38px, 5vw, 62px); font-weight: 700; letter-spacing: -0.028em; line-height: 1.06; text-wrap: pretty; }
h2 { margin: 0; font-size: clamp(28px, 3.2vw, 38px); font-weight: 700; letter-spacing: -0.02em; text-wrap: pretty; }
.sub { margin: 0; font-size: 18px; line-height: 1.68; color: var(--body); max-width: 640px; }
.stack { display: flex; flex-direction: column; gap: 22px; }

/* hero */
.hero { padding-top: 88px; }
.hero-ctas { display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.hero-note { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.shot-frame { background: var(--sand); border-radius: 12px; padding: 22px; margin-top: 26px; }
.browser { background: var(--card); border-radius: 8px; overflow: hidden; box-shadow: 0 10px 36px rgba(31,28,24,0.16); border: 1px solid var(--line); }
.browser-bar { display: flex; align-items: center; gap: 12px; padding: 10px 14px; border-bottom: 1px solid var(--line-soft); }
.browser-bar i { width: 9px; height: 9px; border-radius: 50%; background: #D8D2C4; }
.browser-bar .url { font-family: var(--mono); font-size: 11px; color: var(--muted); background: var(--paper); border-radius: 5px; padding: 3px 12px; }

/* problem cards */
.cards3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 16px; }
.leak { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 24px; display: flex; flex-direction: column; gap: 10px; }
.leak .k { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.14em; color: var(--muted); }
.leak b { font-size: 18px; font-weight: 700; }
.leak p { margin: 0; font-size: 14.5px; line-height: 1.62; color: var(--body); }

/* spine */
.spine { position: relative; margin-top: 20px; }
.spine-line { position: absolute; left: 10px; top: 0; bottom: 0; width: 2px; background: var(--graphite); }
.stage { display: grid; grid-template-columns: 64px 1fr 400px; gap: 26px; padding: 28px 0 28px 34px; border-top: 1px solid var(--line); align-items: center; }
.stage.noshot { grid-template-columns: 64px 1fr; }
.stage:last-child { border-bottom: 1px solid var(--line); }
.stage .n { font-family: var(--mono); font-size: 14px; color: var(--muted); }
.stage b { font-size: 20px; font-weight: 700; display: block; margin-bottom: 6px; }
.stage p { margin: 0; font-size: 15px; line-height: 1.62; color: var(--body); max-width: 500px; }
.mini-frame { background: var(--sand); border-radius: 9px; padding: 10px; }
.mock-card { background: var(--card); border: 1px solid var(--line); border-radius: 9px; padding: 20px 22px; display: flex; flex-direction: column; gap: 12px; box-shadow: 0 6px 22px rgba(31,28,24,0.08); }
.mock-board { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 8px; }
.mock-col { background: var(--paper); border: 1px solid var(--line); border-radius: 6px; padding: 8px; display: flex; flex-direction: column; gap: 7px; min-height: 120px; }
.mock-col .h { font-family: var(--mono); font-size: 8.5px; letter-spacing: 0.1em; color: var(--muted); }
.mock-lead { background: var(--card); border: 1px solid var(--line); border-radius: 4px; padding: 8px 9px; font-size: 11px; line-height: 1.45; }
.mock-lead .m { color: var(--muted); font-size: 9.5px; }
.sop-band { background: var(--sand); border-radius: 12px; padding: 44px 48px; margin-top: 20px; }
.sop-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 30px; margin-top: 22px; }
.sop-grid b { display: block; font-size: 16.5px; margin-bottom: 6px; }
.sop-grid span { font-size: 14.5px; line-height: 1.62; color: var(--body); }
.mini-frame img { border-radius: 5px; border: 1px solid var(--line); }
.phone-frame { width: 168px; background: var(--graphite); border-radius: 22px; padding: 8px; margin: 0 auto; }
.phone-frame img { border-radius: 15px; }

/* dark band */
.band { background: var(--graphite); margin-top: 104px; padding: 92px 0; color: var(--paper); }
.band .eyebrow { color: #A39B8B; }
.band p { color: #C9C2B4; }
.split { display: flex; gap: 64px; align-items: center; }
.split > div:first-child { flex: 1; }
.quote-mock { width: 440px; background: #fff; border-radius: 6px; padding: 30px 34px; display: flex; flex-direction: column; gap: 16px; box-shadow: 0 10px 34px rgba(0,0,0,0.3); flex-shrink: 0; color: var(--ink); }
.quote-mock .firm { font-size: 18px; font-weight: 700; letter-spacing: 0.06em; color: var(--firmc, #1E4B8F); transition: color 700ms ease; }
.quote-mock .rule { height: 1px; background: var(--graphite); }
.quote-mock .row { display: flex; justify-content: space-between; border-bottom: 1px solid var(--line-soft); padding-bottom: 7px; font-size: 12px; }
.quote-mock .row.total { border-bottom: 0; font-weight: 700; }
.quote-mock .amt { font-family: var(--mono); }

/* SOP + health */
.pair { display: flex; gap: 64px; align-items: center; }
.pair > .stack { flex: 1; }
.health-card { width: 500px; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 24px 26px; display: flex; flex-direction: column; gap: 12px; flex-shrink: 0; }
.health-row { display: flex; align-items: center; gap: 12px; border: 1px solid var(--line); border-radius: 7px; padding: 12px 14px; font-size: 13.5px; }
.pill { font-family: var(--mono); font-size: 10px; letter-spacing: 0.08em; border-radius: 4px; padding: 3px 8px; color: #fff; flex-shrink: 0; }
.sop-rows { display: flex; flex-direction: column; margin-top: 6px; }
@media (max-width: 960px) { .sop-grid, .mock-board { grid-template-columns: 1fr; } .sop-band { padding: 30px 26px; } }
.sop-rows > div { display: flex; gap: 18px; padding: 16px 0; border-top: 1px solid var(--line); font-size: 15px; line-height: 1.6; }
.sop-rows b { width: 120px; flex-shrink: 0; font-size: 15.5px; }
.sop-rows span { color: var(--body); }

/* founding + pricing */
.founding { background: var(--sand); border-radius: 12px; padding: 44px 48px; display: flex; align-items: center; gap: 40px; margin-top: 104px; }
.founding .stack { gap: 10px; flex: 1; }
.founding h3 { margin: 0; font-size: 27px; font-weight: 700; letter-spacing: -0.02em; }
.tiers { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 16px; align-items: stretch; }
.tier { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 28px; display: flex; flex-direction: column; gap: 12px; position: relative; }
.tier.hot { border: 1.5px solid var(--kiln); }
.tier .tag { position: absolute; top: -12px; left: 26px; font-family: var(--mono); font-size: 10px; letter-spacing: 0.12em; background: var(--kiln); color: #fff; border-radius: 5px; padding: 4px 10px; }
.tier .k { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; color: var(--muted); }
.price { font-size: 38px; font-weight: 700; letter-spacing: -0.02em; }
.price small { font-size: 15px; font-weight: 400; color: var(--faint); }
.tier ul { margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 9px; font-size: 14.5px; line-height: 1.5; flex: 1; }
.tier .hr { height: 1px; background: var(--line); }

/* gating table */
.gate { background: var(--card); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; margin-top: 16px; }
.gate-scroll { overflow-x: auto; }
.gate table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 640px; }
.gate th { font-family: var(--mono); font-size: 11px; letter-spacing: 0.14em; padding: 15px 24px; background: var(--graphite); color: var(--paper); text-align: center; font-weight: 500; }
.gate th:first-child { text-align: left; color: #A39B8B; }
.gate td { padding: 13px 24px; border-top: 1px solid var(--line-soft); text-align: center; }
.gate td:first-child { text-align: left; }
.gate .no { color: #C9C2B4; }
.gate .num { font-family: var(--mono); font-size: 13.5px; }

/* faq */
.faq { max-width: 760px; }
.faq details { border-top: 1px solid var(--line); }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { cursor: pointer; list-style: none; font-size: 16.5px; font-weight: 700; padding: 20px 0; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; color: var(--muted); font-weight: 400; }
.faq details[open] summary::after { content: "–"; }
.faq details p { margin: 0 0 20px; font-size: 15px; line-height: 1.65; color: var(--body); }

/* story */
.article { max-width: 672px; margin: 0 auto; }
.article p { margin: 0; font-size: 17px; line-height: 1.75; }
.article .lede { font-size: 20px; line-height: 1.7; color: var(--body); }
.hr-dark { height: 1px; background: var(--graphite); }
.sheet-fig { background: var(--card); border: 1.5px solid var(--graphite); position: relative; padding: 20px; }
.sheet-cap { font-family: var(--mono); font-size: 11px; color: var(--faint); margin-top: 10px; }
.keyplan-callout { position: absolute; top: 20px; right: 20px; display: flex; flex-direction: column; align-items: center; gap: 6px; border: 1px dashed var(--kiln); padding: 12px 16px; }
.anatomy { display: flex; gap: 32px; align-items: center; background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 28px 32px; }
.anatomy .rows { display: flex; flex-direction: column; gap: 14px; }
.anatomy .rows > div { display: flex; gap: 12px; align-items: baseline; font-size: 14.5px; line-height: 1.55; }
.anatomy .rows .k { font-family: var(--mono); font-size: 10.5px; letter-spacing: 0.1em; color: var(--muted); width: 116px; flex-shrink: 0; }
.values > div { display: flex; gap: 20px; }
.values b { font-size: 17px; width: 112px; flex-shrink: 0; }
.values span { font-size: 16px; line-height: 1.7; color: var(--body); }

/* contact */
.contact-card { background: var(--card); border: 1px solid var(--line); border-radius: 10px; padding: 30px 32px; display: flex; align-items: center; gap: 26px; }
.contact-card .stack { gap: 7px; flex: 1; }
.note { background: var(--sand); border-radius: 10px; padding: 34px 36px; display: flex; flex-direction: column; gap: 14px; }
.note p { margin: 0; font-size: 16px; line-height: 1.75; }

/* final cta + footer */
.final { padding: 120px 0 110px; display: flex; flex-direction: column; align-items: center; gap: 20px; text-align: center; }
.footer { background: var(--graphite); padding: 40px 0; margin-top: 104px; }
.footer-in { display: flex; align-items: center; justify-content: space-between; gap: 18px; flex-wrap: wrap; }
.footer a { color: #C9C2B4; font-size: 14px; }
.footer a:hover { color: var(--paper); }
.footer .brand { color: var(--paper); font-size: 17px; }
.footer-links { display: flex; gap: 26px; flex-wrap: wrap; }
.footer-fine { font-family: var(--mono); font-size: 11px; color: var(--faint); margin-top: 22px; }

/* ---------- floating WhatsApp — quiet graphite, kiln on hover ---------- */
.wa-fab { position: fixed; right: 22px; bottom: 22px; z-index: 60; width: 52px; height: 52px; border-radius: 50%; background: var(--graphite); color: var(--paper); display: flex; align-items: center; justify-content: center; box-shadow: 0 8px 24px rgba(31,28,24,0.22); transition: background 200ms ease, transform 200ms ease; }
.wa-fab:hover { background: var(--kiln); color: #fff; transform: translateY(-2px); }
.wa-fab:active { transform: translateY(0) scale(0.97); }

/* ---------- motion ---------- */
.rv { opacity: 0; transform: translateY(12px); transition: opacity 520ms cubic-bezier(.2,.7,.2,1), transform 520ms cubic-bezier(.2,.7,.2,1); transition-delay: var(--d, 0ms); }
.rv.in { opacity: 1; transform: none; }
.hero-shot-anim { opacity: 0; transform: translateY(30px) scale(0.96); transition: opacity 820ms cubic-bezier(.2,.7,.2,1) 320ms, transform 820ms cubic-bezier(.2,.7,.2,1) 320ms; }
.wd { display: inline-block; opacity: 0; transform: translateY(0.55em); transition: opacity 560ms cubic-bezier(.2,.7,.2,1), transform 560ms cubic-bezier(.2,.7,.2,1); transition-delay: calc(var(--wi) * 55ms); }
h1.in .wd { opacity: 1; transform: none; }
.hero-shot-anim.in { opacity: 1; transform: none; }
@supports (animation-timeline: view()) {
  .drift, .mini-frame, .phone-frame, .mock-card { animation: drift linear both; animation-timeline: view(); animation-range: entry 40% exit 20%; }
  @keyframes drift { from { transform: translateY(16px); } to { transform: translateY(-16px); } }
}
/* the mark builds itself — walls go up bar by bar, then the room lights.
   Pure filled rectangles: no strokes, so no corner seams, ever. */
.kp-draw rect { transform-box: fill-box; }
.kp-draw .km-t { transform: scaleX(0); transform-origin: left center; }
.kp-draw .km-r { transform: scaleY(0); transform-origin: center top; }
.kp-draw .km-b { transform: scaleX(0); transform-origin: right center; }
.kp-draw .km-l { transform: scaleY(0); transform-origin: center bottom; }
.kp-draw .km-wv { transform: scaleY(0); transform-origin: center top; }
.kp-draw .km-wh { transform: scaleX(0); transform-origin: left center; }
.kp-draw .km-cell { opacity: 0; }
.kp-draw.in .km-t { animation: kmGrowX 260ms cubic-bezier(.4,0,.2,1) 0ms forwards; }
.kp-draw.in .km-r { animation: kmGrowY 260ms cubic-bezier(.4,0,.2,1) 190ms forwards; }
.kp-draw.in .km-b { animation: kmGrowX 260ms cubic-bezier(.4,0,.2,1) 380ms forwards; }
.kp-draw.in .km-l { animation: kmGrowY 260ms cubic-bezier(.4,0,.2,1) 570ms forwards; }
.kp-draw.in .km-wv { animation: kmGrowY 240ms cubic-bezier(.4,0,.2,1) 760ms forwards; }
.kp-draw.in .km-wh { animation: kmGrowX 220ms cubic-bezier(.4,0,.2,1) 880ms forwards; }
.kp-draw.in .km-cell { animation: kmLight 420ms ease 1020ms forwards; }
@keyframes kmGrowX { to { transform: scaleX(1); } }
@keyframes kmGrowY { to { transform: scaleY(1); } }
@keyframes kmLight { to { opacity: 1; } }
/* firm colour cycles once, then settles */
.quote-mock.cycle .firm { animation: firmcycle 2.8s ease forwards; }
@keyframes firmcycle { 0% { color: #1E4B8F; } 33% { color: #4A6B4F; } 66% { color: #8A4A5E; } 100% { color: #1E4B8F; } }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .rv, .hero-shot-anim { opacity: 1; transform: none; }
  .kp-draw .km-t, .kp-draw .km-b, .kp-draw .km-wh { transform: scaleX(1); }
  .kp-draw .km-r, .kp-draw .km-l, .kp-draw .km-wv { transform: scaleY(1); }
  .kp-draw .km-cell { opacity: 1; }
}

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .nav-links, .nav-cta { display: none; }
  .menu-btn { display: block; }
  .cards3, .tiers { grid-template-columns: 1fr; }
  .stage { grid-template-columns: 40px 1fr; }
  .stage > .mini-frame, .stage > .phone-wrap { grid-column: 2; }
  .split, .pair { flex-direction: column; align-items: stretch; gap: 36px; }
  .quote-mock, .health-card { width: 100%; }
  .founding { flex-direction: column; align-items: flex-start; padding: 32px 28px; gap: 22px; }
  .sec { padding-top: 76px; }
  .hero { padding-top: 56px; }
  .shot-frame { padding: 12px; }
  .anatomy { flex-direction: column; }
  .values b { width: 96px; }
  .wa-fab { right: 16px; bottom: 16px; width: 48px; height: 48px; }
}