:root {
  --sand-50: #fffaf6;
  --sand-100: #f7efe7;
  --sand-200: #eadbcf;
  --blush-500: #b07461;
  --stone-500: #6e615a;
  --stone-700: #453b36;
  --danger: #9b3b2e;
  --radius: 16px;
  color-scheme: light;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 16px/1.55 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color: var(--stone-700);
  background: linear-gradient(180deg, var(--sand-100), var(--sand-50) 240px);
  min-height: 100vh;
}

.skip { position: absolute; left: -999px; }
.skip:focus { left: 16px; top: 16px; background: #fff; padding: 8px 12px; border-radius: 8px; }

.brand, main, footer { max-width: 560px; margin: 0 auto; padding: 0 16px; }
.brand { display: flex; align-items: center; gap: 10px; padding-top: 24px; font-weight: 600; letter-spacing: .02em; }
.brand img { border-radius: 12px; }

h1 { font-size: clamp(1.6rem, 5vw, 2rem); line-height: 1.2; margin: 28px 0 8px; }
h2 { font-size: 1.1rem; margin: 0 0 12px; }
ul { padding-left: 20px; }
li { margin-bottom: 6px; }
a { color: var(--blush-500); }

.card {
  background: #fff;
  border: 1px solid var(--sand-200);
  border-radius: var(--radius);
  padding: 20px;
  margin: 20px 0;
}

.notice {
  background: var(--sand-100);
  border-left: 4px solid var(--blush-500);
  border-radius: 8px;
  padding: 12px 14px;
  margin: 20px 0;
}
.notice.error { border-left-color: var(--danger); }

label { display: block; font-weight: 600; margin: 12px 0 4px; }
input[type=email], input[type=password] {
  width: 100%;
  font: inherit;
  padding: 12px;
  border: 1px solid var(--stone-500);
  border-radius: 10px;
}
.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; margin: 12px 0 16px; }
.check input { width: 22px; height: 22px; margin-top: 2px; flex: none; }

.btn {
  display: block;
  width: 100%;
  min-height: 48px;
  margin-top: 16px;
  font: inherit;
  font-weight: 600;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
}
.btn.primary { background: var(--stone-700); color: #fff; }
.btn.secondary { background: #fff; border-color: var(--stone-500); color: var(--stone-700); }
.btn.danger { background: var(--danger); color: #fff; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.link {
  background: none;
  border: 0;
  padding: 8px 0;
  margin-top: 8px;
  font: inherit;
  color: var(--blush-500);
  text-decoration: underline;
  cursor: pointer;
}

.divider { display: flex; align-items: center; gap: 10px; color: var(--stone-500); font-size: .9rem; margin: 16px 0 0; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--sand-200); }

:focus-visible { outline: 3px solid var(--blush-500); outline-offset: 2px; }

footer { padding-top: 12px; padding-bottom: 32px; font-size: .9rem; }

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