:root {
  color-scheme: light;
  --bg: #f4f0e8;
  --card: #ffffff;
  --text: #2f2a24;
  --muted: #766f66;
  --accent: #b88746;
  --accent-dark: #8f642d;
  --line: #e4d8c8;
  --danger: #b42318;
}

* {
  box-sizing: border-box;
}

body.number-page {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at top, rgba(184, 135, 70, 0.18), transparent 36%),
    linear-gradient(180deg, #fbf8f2 0%, var(--bg) 100%);
  color: var(--text);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.number-card {
  width: min(100%, 420px);
  padding: 32px 28px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 18px 48px rgba(80, 58, 34, 0.14);
  text-align: center;
}

.brand-mark {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  margin: 0 auto 18px;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.03em;
}

h1 {
  margin: 0;
  font-size: 24px;
  line-height: 1.35;
}

.lead {
  margin: 12px 0 24px;
  color: var(--muted);
  line-height: 1.7;
}

.number-form {
  display: grid;
  gap: 12px;
  text-align: left;
}

label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
}

input,
button {
  width: 100%;
  min-height: 50px;
  border-radius: 12px;
  font: inherit;
}

input {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  padding: 0 16px;
  font-size: 20px;
  letter-spacing: 0.04em;
}

input:focus {
  border-color: var(--accent);
  outline: 3px solid rgba(184, 135, 70, 0.18);
}

button {
  border: 0;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-weight: 700;
}

button:hover {
  background: var(--accent-dark);
}

button:disabled {
  cursor: wait;
  opacity: 0.7;
}

.number-message {
  min-height: 22px;
  margin: 14px 0 0;
  color: var(--danger);
  font-size: 14px;
}

.note {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 12px;
}