/* QRVerify demo — tokens: palette 175 "E-signature / Document Workflow"
   IBM Plex Sans + IBM Plex Mono (pairing 31 "Financial Trust") */

:root {
  --primary: #1E3A5F;
  --primary-fg: #FFFFFF;
  --secondary: #2563EB;
  --accent: #16A34A;
  --accent-fg: #052E16;
  --bg: #F8FAFC;
  --fg: #0F172A;
  --card: #FFFFFF;
  --muted: #E9EEF5;
  --muted-fg: #475569;
  --border: #CBD5E1;
  --destructive: #DC2626;
  --warning: #B45309;
  --ring: #1E3A5F;

  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 16px;

  --sh-1: 0 1px 2px rgba(15, 23, 42, .06);
  --sh-2: 0 4px 12px rgba(15, 23, 42, .07), 0 1px 3px rgba(15, 23, 42, .05);
  --sh-3: 0 12px 32px rgba(15, 23, 42, .10), 0 2px 8px rgba(15, 23, 42, .06);

  --font: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;
}

*, *::before, *::after { box-sizing: border-box; }

/* wajib: .btn memakai display:inline-flex yang menimpa atribut hidden */
[hidden] { display: none !important; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--fg);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -0.011em; }
h1 { font-size: clamp(30px, 5vw, 46px); line-height: 1.15; letter-spacing: -0.02em; }
h2 { font-size: clamp(23px, 3.2vw, 31px); line-height: 1.25; letter-spacing: -0.018em; }
h3 { font-size: 18px; line-height: 1.35; }
p { margin: 0; }

a { color: var(--secondary); text-underline-offset: 3px; }

:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

.shell { width: 100%; max-width: 1140px; margin: 0 auto; padding: 0 24px; }

.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 12px; top: -48px; z-index: 50;
  background: var(--primary); color: var(--primary-fg);
  padding: 10px 16px; border-radius: var(--r-sm); font-weight: 600;
  transition: top 160ms ease-out;
}
.skip-link:focus-visible { top: 12px; }

/* ---------- header ---------- */

.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(248, 250, 252, .88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; height: 62px;
}
.brand {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 600; color: var(--fg); text-decoration: none; font-size: 16px;
}
.brand__mark {
  width: 30px; height: 30px; flex: 0 0 30px;
  border-radius: 8px; background: var(--primary);
  display: grid; place-items: center;
}
.brand__by { color: var(--muted-fg); font-weight: 400; font-size: 13px; }

.nav { display: flex; align-items: center; gap: 6px; }
.nav a {
  color: var(--muted-fg); text-decoration: none; font-size: 14px; font-weight: 500;
  padding: 8px 12px; border-radius: var(--r-sm);
  transition: color 140ms ease-out, background-color 140ms ease-out;
}
.nav a { white-space: nowrap; }
.nav a:hover { color: var(--fg); background: var(--muted); }
@media (max-width: 720px) { .nav__link--hide { display: none; } }
@media (max-width: 520px) { .brand__by { display: none; } }

/* ---------- buttons ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: inherit; font-size: 15px; font-weight: 600; line-height: 1;
  min-height: 44px; padding: 0 22px;
  border-radius: var(--r-md); border: 1px solid transparent;
  cursor: pointer; text-decoration: none; white-space: nowrap;
  transition: background-color 150ms ease-out, border-color 150ms ease-out,
              color 150ms ease-out, box-shadow 150ms ease-out, transform 120ms ease-out;
}
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: .55; cursor: not-allowed; transform: none; }

.btn--primary { background: var(--primary); color: var(--primary-fg); box-shadow: var(--sh-1); }
.btn--primary:hover:not([disabled]) { background: #16304F; box-shadow: var(--sh-2); }

.btn--outline { background: var(--card); color: var(--fg); border-color: var(--border); }
.btn--outline:hover:not([disabled]) { border-color: var(--primary); background: var(--muted); }

.btn--ghost { background: transparent; color: var(--muted-fg); min-height: 38px; padding: 0 12px; font-size: 14px; }
.btn--ghost:hover:not([disabled]) { background: var(--muted); color: var(--fg); }

.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }
@media (max-width: 520px) {
  .btn-row { display: grid; grid-template-columns: 1fr; }
  .btn { width: 100%; }
}

/* ---------- hero ---------- */

.hero { padding: 72px 0 64px; border-bottom: 1px solid var(--border); }
.hero__grid {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center;
}
@media (max-width: 900px) { .hero__grid { grid-template-columns: 1fr; gap: 40px; } }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase;
  color: var(--primary); background: var(--muted);
  border: 1px solid var(--border); border-radius: 999px; padding: 6px 14px;
  margin-bottom: 20px;
}
.hero__lead { margin-top: 18px; font-size: 17px; color: var(--muted-fg); max-width: 54ch; }
.hero__cta { margin-top: 30px; }
.hero__note { margin-top: 16px; font-size: 13px; color: var(--muted-fg); }

/* ---------- signature element: document stub ---------- */

.stub {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-3);
  padding: 26px 28px;
  display: grid; grid-template-columns: auto 1fr; gap: 22px; align-items: center;
}
.stub::before,
.stub::after {
  content: ""; position: absolute; left: 50%; transform: translateX(-50%);
  width: 46px; height: 5px; border-radius: 999px; background: var(--muted);
}
.stub::before { top: 10px; }
.stub::after { bottom: 10px; }

.stub__qr {
  width: 132px; height: 132px; flex: 0 0 132px;
  padding: 9px; background: #FFFFFF;
  border: 1px solid var(--border); border-radius: var(--r-md);
}
.stub__qr img, .stub__qr canvas { display: block; width: 100%; height: auto; }

.stub__meta { min-width: 0; }
.stub__label { font-size: 11px; font-weight: 600; letter-spacing: .07em; text-transform: uppercase; color: var(--muted-fg); }
.stub__no { font-size: 17px; font-weight: 600; margin-top: 3px; word-break: break-all; }
.stub__row { margin-top: 12px; font-size: 14px; color: var(--muted-fg); }
.stub__row strong { color: var(--fg); font-weight: 500; }

@media (max-width: 460px) {
  .stub { grid-template-columns: 1fr; justify-items: center; text-align: center; }
}

/* ---------- badges ---------- */

.badge {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 12.5px; font-weight: 600; line-height: 1;
  padding: 7px 13px; border-radius: 999px; border: 1px solid transparent;
}
.badge--ok      { background: #DCFCE7; color: #14532D; border-color: #86EFAC; }
.badge--revoked { background: #FEF3C7; color: #78350F; border-color: #FCD34D; }
.badge--bad     { background: #FEE2E2; color: #7F1D1D; border-color: #FCA5A5; }
.badge--demo    { background: var(--muted); color: var(--muted-fg); border-color: var(--border); }
.badge__dot { width: 7px; height: 7px; border-radius: 50%; background: currentColor; flex: 0 0 7px; }

/* ---------- sections ---------- */

.section { padding: 76px 0; }
.section--alt { background: var(--card); border-block: 1px solid var(--border); }
.section__head { max-width: 62ch; margin-bottom: 36px; }
.section__head p { margin-top: 12px; color: var(--muted-fg); font-size: 16px; }

/* ---------- sample document grid ---------- */

.docs { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
@media (max-width: 860px) { .docs { grid-template-columns: 1fr; } }

.doc {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--r-lg);
  padding: 20px; display: grid; grid-template-columns: auto 1fr; gap: 18px;
  transition: border-color 150ms ease-out, box-shadow 150ms ease-out;
}
.doc:hover { border-color: var(--primary); box-shadow: var(--sh-2); }
.doc--invalid { border-style: dashed; }

.doc__qr {
  width: 108px; height: 108px; flex: 0 0 108px; padding: 7px;
  background: #FFFFFF; border: 1px solid var(--border); border-radius: var(--r-sm);
}
.doc__qr canvas { display: block; width: 100%; height: auto; image-rendering: pixelated; }

.doc__body { min-width: 0; display: flex; flex-direction: column; gap: 8px; }
.doc__no { font-size: 15px; font-weight: 600; word-break: break-all; }
.doc__sub { font-size: 13.5px; color: var(--muted-fg); }
.doc__foot { margin-top: auto; padding-top: 10px; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.doc__link { font-size: 13.5px; font-weight: 600; }

@media (max-width: 420px) { .doc { grid-template-columns: 1fr; justify-items: start; } }

/* ---------- steps ---------- */

.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: s; }
@media (max-width: 820px) { .steps { grid-template-columns: 1fr; } }
.step {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 24px;
}
.section--alt .step { background: var(--bg); }
.step__n {
  width: 34px; height: 34px; border-radius: 9px; background: var(--primary); color: var(--primary-fg);
  display: grid; place-items: center; font-weight: 600; font-size: 15px; margin-bottom: 14px;
  font-variant-numeric: tabular-nums;
}
.step p { margin-top: 8px; font-size: 14.5px; color: var(--muted-fg); }

/* ---------- form ---------- */

.panel {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--r-lg); padding: 28px; box-shadow: var(--sh-1);
}
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }
.field { display: flex; flex-direction: column; gap: 7px; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: 13.5px; font-weight: 600; color: var(--fg); }
.field input, .field select {
  font-family: inherit; font-size: 15px; color: var(--fg);
  min-height: 44px; padding: 10px 13px;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--r-md);
  transition: border-color 150ms ease-out, box-shadow 150ms ease-out;
  width: 100%;
}
.field input:hover, .field select:hover { border-color: #94A3B8; }
.field input:focus-visible, .field select:focus-visible {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(30, 58, 95, .14);
}
.field__hint { font-size: 12.5px; color: var(--muted-fg); }
.field__err { font-size: 12.5px; color: var(--destructive); font-weight: 500; }
.field--bad input { border-color: var(--destructive); }

.gen-layout { display: grid; grid-template-columns: 1fr 300px; gap: 32px; align-items: start; }
@media (max-width: 900px) { .gen-layout { grid-template-columns: 1fr; } }

.gen-out {
  border: 1px solid var(--border); border-radius: var(--r-lg);
  background: var(--bg); padding: 22px; text-align: center;
}
.gen-out__frame {
  width: 190px; height: 190px; margin: 0 auto 16px; padding: 11px;
  background: #FFFFFF; border: 1px solid var(--border); border-radius: var(--r-md);
  display: grid; place-items: center;
}
.gen-out__frame canvas { display: block; width: 100%; height: auto; }
.gen-out__empty { color: var(--muted-fg); font-size: 13.5px; line-height: 1.5; padding: 0 6px; }
.gen-out__code { font-size: 13px; color: var(--muted-fg); word-break: break-all; margin-bottom: 14px; }

/* ---------- use cases ---------- */

.uses { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 860px) { .uses { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 540px) { .uses { grid-template-columns: 1fr; } }
.use {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--r-md); padding: 18px 20px;
}
.use h3 { font-size: 15.5px; }
.use p { margin-top: 6px; font-size: 14px; color: var(--muted-fg); }

/* ---------- verification page ---------- */

/* mendorong footer ke dasar layar pada halaman pendek, tanpa mengganggu header sticky */
.verify-wrap { padding: 48px 0 72px; min-height: calc(100vh - 63px - 118px); }
.result {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--r-lg); box-shadow: var(--sh-3); overflow: hidden;
  max-width: 680px; margin: 0 auto;
}
.result__banner {
  padding: 26px 28px; display: flex; align-items: center; gap: 18px;
  border-bottom: 1px solid var(--border);
}
.result__banner--ok      { background: #F0FDF4; }
.result__banner--revoked { background: #FFFBEB; }
.result__banner--bad     { background: #FEF2F2; }

.seal {
  width: 74px; height: 74px; flex: 0 0 74px;
  display: grid; place-items: center; border-radius: 50%;
  border: 2.5px solid currentColor; position: relative;
}
.seal::after {
  content: ""; position: absolute; inset: 5px;
  border: 1px dashed currentColor; border-radius: 50%; opacity: .5;
}
.seal--ok      { color: #15803D; }
.seal--revoked { color: #B45309; }
.seal--bad     { color: var(--destructive); }
.seal svg { width: 34px; height: 34px; }

.result__headline { font-size: 21px; font-weight: 600; line-height: 1.3; }
.result__sub { margin-top: 5px; font-size: 14.5px; color: var(--muted-fg); }

.result__body { padding: 26px 28px; }
.dl { display: grid; grid-template-columns: 190px 1fr; gap: 1px; background: var(--border); border: 1px solid var(--border); border-radius: var(--r-md); overflow: hidden; }
.dl dt, .dl dd { margin: 0; padding: 13px 16px; background: var(--card); font-size: 14.5px; }
.dl dt { color: var(--muted-fg); font-weight: 500; }
.dl dd { font-weight: 500; word-break: break-word; }
@media (max-width: 560px) {
  .dl { grid-template-columns: 1fr; }
  .dl dt { padding-bottom: 0; background: var(--card); }
  .dl dd { padding-top: 4px; }
}

.result__foot {
  padding: 18px 28px 26px; border-top: 1px solid var(--border);
  display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between;
}
.result__stamp { font-size: 12.5px; color: var(--muted-fg); }

.notice {
  max-width: 680px; margin: 20px auto 0;
  background: var(--muted); border: 1px solid var(--border);
  border-radius: var(--r-md); padding: 15px 18px;
  font-size: 13.5px; color: var(--muted-fg); line-height: 1.55;
}
.notice strong { color: var(--fg); }

/* ---------- cta band ---------- */

.band { background: var(--primary); color: var(--primary-fg); padding: 60px 0; }
.band h2 { color: var(--primary-fg); }
.band p { margin-top: 12px; color: #C7D6E8; max-width: 60ch; }
.band .btn--outline { background: transparent; color: var(--primary-fg); border-color: rgba(255,255,255,.4); }
.band .btn--outline:hover { background: rgba(255,255,255,.1); border-color: var(--primary-fg); }
.band .btn--light { background: var(--primary-fg); color: var(--primary); }
.band .btn--light:hover { background: #E8EEF6; }

/* ---------- footer ---------- */

.site-footer { background: var(--card); border-top: 1px solid var(--border); padding: 34px 0; }
.site-footer__inner { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; justify-content: space-between; }
.site-footer p { font-size: 13.5px; color: var(--muted-fg); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 1ms !important; animation-duration: 1ms !important; }
}