:root {
  --bg-deep: #0f0520;
  --bg-mid: #1a0a32;
  --accent: #ff6b9d;
  --accent-soft: #ffa8c5;
  --gold: #ffd56f;
  --cream: #fff5e6;
  --glass: rgba(255, 255, 255, 0.08);
  --glass-border: rgba(255, 255, 255, 0.18);
  --shadow-glow: 0 0 40px rgba(255, 107, 157, 0.35);
  --font-display: "SF Pro Display", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  --safe-bottom: env(safe-area-inset-bottom, 16px);
}

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

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--font-display);
  color: var(--cream);
  background: radial-gradient(
      ellipse 120% 80% at 50% -20%,
      #3d1f5c 0%,
      transparent 55%
    ),
    linear-gradient(165deg, var(--bg-deep) 0%, var(--bg-mid) 45%, #12081f 100%);
  overflow-x: hidden;
}

a {
  color: var(--accent-soft);
  text-decoration: none;
}

.stars {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image: radial-gradient(
      1px 1px at 20% 30%,
      rgba(255, 255, 255, 0.4) 50%,
      transparent 51%
    ),
    radial-gradient(1px 1px at 60% 70%, rgba(255, 255, 255, 0.25) 50%, transparent 51%),
    radial-gradient(1px 1px at 80% 20%, rgba(255, 255, 255, 0.35) 50%, transparent 51%),
    radial-gradient(1px 1px at 40% 80%, rgba(255, 255, 255, 0.2) 50%, transparent 51%);
  background-size: 100% 100%;
  opacity: 0.7;
  animation: twinkle 8s ease-in-out infinite alternate;
}

@keyframes twinkle {
  from {
    opacity: 0.45;
  }
  to {
    opacity: 0.85;
  }
}

.page-wrap {
  position: relative;
  z-index: 1;
  min-height: 100dvh;
  padding: 24px 20px calc(24px + var(--safe-bottom));
  display: flex;
  flex-direction: column;
  align-items: center;
}

.glass-card {
  width: 100%;
  max-width: 400px;
  padding: 22px 20px;
  border-radius: 22px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow-glow);
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 14px 20px;
  border: none;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 600;
  color: #2a0a18;
  background: linear-gradient(135deg, var(--accent-soft), var(--accent));
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(255, 107, 157, 0.45);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--cream);
  font-size: 14px;
}

.nav-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-top: 16px;
}

.nav-row a {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid var(--glass-border);
  font-size: 13px;
  color: var(--cream);
}

.nav-row a[aria-current="page"] {
  border-color: var(--accent);
  color: var(--accent-soft);
}

.hint {
  font-size: 13px;
  color: rgba(255, 245, 230, 0.55);
  text-align: center;
  margin-top: 12px;
}

.error-msg {
  color: #ff8a8a;
  font-size: 14px;
  text-align: center;
  margin-top: 10px;
  min-height: 1.2em;
}