:root {
  color-scheme: light;
  --ink: #251d18;
  --muted: #6b5a4d;
  --paper: #fffaf3;
  --surface: #ffffff;
  --warm: #f4eadb;
  --warm-strong: #d7b483;
  --accent: #8b4b2e;
  --border: #e2d4c3;
  --focus: #2458d3;
  --shadow: 0 18px 50px rgba(52, 37, 23, 0.12);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  color: var(--ink);
}

body {
  margin: 0;
  min-height: 100vh;
  font-size: 16px;
  line-height: 1.5;
}

a {
  color: var(--accent);
  text-underline-offset: 0.18em;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

img {
  max-width: 100%;
}

.page {
  min-height: 100vh;
  display: grid;
  align-items: center;
  padding: 32px 18px;
}

.home {
  max-width: 760px;
  margin: 0 auto;
}

.home h1,
.wifi-page h1 {
  margin: 0;
  font-size: clamp(2.35rem, 8vw, 4.75rem);
  line-height: 0.96;
  letter-spacing: 0;
}

.home .tagline,
.wifi-page .intro {
  margin: 18px 0 0;
  max-width: 650px;
  color: var(--muted);
  font-size: clamp(1.1rem, 3vw, 1.35rem);
}

.home .description {
  margin: 10px 0 0;
  max-width: 620px;
  color: var(--muted);
  font-size: 1.05rem;
}

.demo-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 30px;
  padding: 13px 17px;
  min-height: 48px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 8px 22px rgba(52, 37, 23, 0.08);
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

.demo-link span {
  color: var(--accent);
}

.wifi-page {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.wifi-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
  gap: 28px;
  align-items: start;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.hero-panel {
  padding: clamp(24px, 5vw, 48px);
}

.qr-panel {
  padding: clamp(20px, 4vw, 30px);
  text-align: center;
}

.location {
  margin: 0 0 14px;
  color: var(--accent);
  font-size: 0.92rem;
  font-weight: 700;
}

.qr-wrap {
  display: grid;
  place-items: center;
  width: min(100%, 360px);
  margin: 0 auto;
  padding: 18px;
  background: #ffffff;
  border: 1px solid #ece5dc;
  border-radius: 8px;
}

.qr-wrap img {
  display: block;
  width: 100%;
  height: auto;
}

.qr-caption {
  margin: 16px auto 0;
  max-width: 31ch;
  color: var(--muted);
}

.details {
  display: grid;
  gap: 12px;
  margin: 28px 0;
}

.detail {
  padding: 15px 16px;
  background: var(--warm);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.detail span {
  display: block;
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.detail strong {
  display: block;
  margin-top: 4px;
  color: var(--ink);
  font-size: 1.12rem;
  word-break: break-word;
}

.instructions {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
}

.instructions section {
  padding: 18px;
  background: rgba(255, 250, 243, 0.78);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.instructions h2 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.instructions p,
.note,
.card-helper {
  margin: 0;
  color: var(--muted);
}

.note {
  margin-top: 22px;
  font-weight: 650;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 11px 15px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font-weight: 700;
  text-decoration: none;
}

.button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
}

.card-page {
  min-height: 100vh;
  padding: 24px 18px;
  background: var(--paper);
}

.card-page main {
  width: min(860px, 100%);
  margin: 0 auto;
}

.card-top {
  margin-bottom: 18px;
}

.card-top h1 {
  margin: 0;
  font-size: clamp(2rem, 7vw, 3rem);
  line-height: 1;
}

.card-helper {
  margin-top: 8px;
}

.business-card-frame {
  overflow-x: auto;
  padding: 20px 0;
}

.business-card {
  width: 3.5in;
  height: 2in;
  display: grid;
  grid-template-columns: 1.12in 1fr;
  gap: 0.16in;
  align-items: center;
  padding: 0.18in;
  background: #fffaf3;
  border: 1px solid #cdbba6;
  border-radius: 0.08in;
  color: var(--ink);
  box-shadow: 0 14px 34px rgba(52, 37, 23, 0.14);
}

.business-card .card-qr {
  width: 1.08in;
  height: 1.08in;
  padding: 0.05in;
  background: #ffffff;
  border: 1px solid #e4d8c8;
  border-radius: 0.05in;
}

.business-card h2 {
  margin: 0;
  font-size: 0.2in;
  line-height: 1;
}

.business-card .tap {
  margin: 0.05in 0 0;
  color: var(--accent);
  font-size: 0.095in;
  font-weight: 800;
}

.business-card dl {
  margin: 0.09in 0 0;
  display: grid;
  gap: 0.035in;
  font-size: 0.09in;
}

.business-card dt {
  color: var(--muted);
  font-weight: 800;
}

.business-card dd {
  margin: 0;
  font-weight: 750;
  word-break: break-word;
}

.business-card .nfc {
  margin: 0.08in 0 0;
  color: var(--muted);
  font-size: 0.078in;
}

@media (max-width: 820px) {
  .wifi-layout,
  .instructions {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 430px) {
  .page {
    padding: 20px 14px;
  }

  .hero-panel,
  .qr-panel {
    padding: 20px;
  }

  .business-card {
    transform: scale(0.82);
    transform-origin: top left;
  }

  .business-card-frame {
    min-height: 2.05in;
  }
}

@media print {
  body {
    background: #ffffff;
  }

  .card-page {
    padding: 0;
    background: #ffffff;
  }

  .card-top,
  .actions,
  .card-helper {
    display: none;
  }

  .card-page main,
  .business-card-frame {
    width: auto;
    margin: 0;
    padding: 0;
    overflow: visible;
  }

  .business-card {
    box-shadow: none;
    page-break-inside: avoid;
  }
}