*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-deep: #1a1209;
  --bg-warm: #2d1f0f;
  --accent: #c8860a;
  --accent-light: #e8a830;
  --text: #f5efe6;
  --text-muted: #c4b8a8;
  --card-bg: rgba(45, 31, 15, 0.85);
  --border: rgba(200, 134, 10, 0.25);
}

html {
  height: 100%;
}

body {
  min-height: 100%;
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--text);
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(200, 134, 10, 0.18), transparent),
    radial-gradient(ellipse 60% 50% at 80% 100%, rgba(139, 69, 19, 0.2), transparent),
    linear-gradient(160deg, var(--bg-deep) 0%, var(--bg-warm) 100%);
  line-height: 1.6;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2rem 1.25rem;
  text-align: center;
}

.card {
  width: min(100%, 32rem);
  padding: 3rem 2.5rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 1.25rem;
  backdrop-filter: blur(12px);
  box-shadow:
    0 24px 48px rgba(0, 0, 0, 0.35),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

.brand-mark {
  width: 4.5rem;
  height: 4.5rem;
  margin: 0 auto 1.75rem;
  display: grid;
  place-items: center;
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--bg-deep);
  background: linear-gradient(135deg, var(--accent-light), var(--accent));
  border-radius: 1rem;
  box-shadow: 0 8px 24px rgba(200, 134, 10, 0.35);
}

h1 {
  font-size: clamp(1.75rem, 5vw, 2.25rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.tagline {
  color: var(--text-muted);
  font-size: 1.05rem;
}

footer {
  margin-top: 2.5rem;
}

footer p {
  font-size: 0.875rem;
  color: var(--text-muted);
  opacity: 0.8;
}

@media (max-width: 480px) {
  .card {
    padding: 2.25rem 1.5rem;
  }
}