:root {
  --bg: #f5f5f4;
  --card: #ffffff;
  --text: #111827;
  --muted: #4b5563;
  --subtle: #6b7280;
  --line: #e7e5e4;
  --accent: #5b3df5;
  --warn-bg: #fff8ed;
  --warn-line: #e9a23b;
  --info-bg: #eff6ff;
  --info-line: #dbeafe;
  --font: -apple-system, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  --radius: 1rem;
  --shadow: 0 1px 2px rgba(17, 24, 39, 0.04), 0 8px 24px rgba(17, 24, 39, 0.06);
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  font-weight: 500;
  -webkit-font-smoothing: antialiased;
}

.page {
  width: 100%;
  max-width: 48rem;
  margin: 0 auto;
  padding: 0 1rem;
}

a { color: var(--accent); }
a:hover { opacity: 0.75; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* Header */

.masthead {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 0;
}

.mark {
  width: 6rem;
  height: 6rem;
  flex: none;
  border-radius: 1.5rem;
  background: #0b0e13;
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
}
.mark svg { width: 3.25rem; height: 3.25rem; }

.masthead h1 {
  font-size: 1.85rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  margin: 0 0 0.15rem;
}
.masthead h1 span { font-size: 1.2rem; font-weight: 500; opacity: 0.5; }
.masthead p { margin: 0; color: var(--muted); font-size: 1rem; }

.store {
  margin: 0.6rem 0 0;
  font-size: 0.95rem;
  color: var(--subtle);
}

@media (max-width: 30rem) {
  .mark { width: 4.5rem; height: 4.5rem; border-radius: 1.1rem; }
  .mark svg { width: 2.4rem; height: 2.4rem; }
  .masthead h1 { font-size: 1.35rem; }
  .masthead h1 span { font-size: 1rem; display: block; }
}

/* Cards */

.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.75rem;
  margin-bottom: 1rem;
}

@media (min-width: 40rem) {
  .card { padding: 2.25rem; }
}

.card h2 {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin: 0 0 0.6rem;
}

.card p { color: var(--muted); margin: 0 0 0.75rem; max-width: 62ch; }
.card p:last-child { margin-bottom: 0; }

/* Warning card */

.warn {
  background: var(--warn-bg);
  box-shadow: var(--shadow);
  border-left: 4px solid var(--warn-line);
}
.warn h2 { color: #8a5a10; }
.warn strong { color: var(--text); }

/* Contact box */

.box {
  background: var(--info-bg);
  border: 1px solid var(--info-line);
  border-radius: 0.75rem;
  padding: 1.1rem 1.25rem;
  margin: 0 0 1.5rem;
}
.box p { margin: 0 0 0.35rem; color: var(--text); }
.box p:last-child { margin-bottom: 0; }
.box .note { color: var(--subtle); font-size: 0.9rem; }

/* Document pages */

.card h2.doc-title { font-size: 2rem; font-weight: 700; letter-spacing: -0.025em; margin: 0 0 0.25rem; }
.doc-sub { color: var(--subtle); font-size: 0.95rem; margin: 0 0 2rem; }

.card h3 {
  font-size: 1.05rem;
  font-weight: 650;
  margin: 1.75rem 0 0.4rem;
}
.card h3:first-of-type { margin-top: 0; }

.qa { border-top: 1px solid var(--line); padding-top: 1.25rem; margin-top: 1.25rem; }
.qa:first-of-type { border-top: 0; padding-top: 0; margin-top: 0; }
.qa h3 { margin-top: 0; }
.qa p { margin: 0; }

.card ul { color: var(--muted); padding-left: 1.15rem; margin: 0; max-width: 62ch; }
.card li { margin-bottom: 0.4rem; }
.card li:last-child { margin-bottom: 0; }

/* Footer */

footer {
  text-align: center;
  font-size: 0.8rem;
  color: var(--subtle);
  padding: 2.5rem 0 3rem;
}
footer ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1.25rem;
}
footer li { display: inline-block; margin: 0 0.75rem; }
footer li a { color: var(--muted); text-decoration: underline; }
footer p { margin: 0 0 0.5rem; }
footer .legal { opacity: 0.75; max-width: 46ch; margin: 0 auto; }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}