/* ============================================================
   铃雪回廊 · 登录 / 注册页共享样式
   ============================================================ */

.auth-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: radial-gradient(42% 34% at 50% 0%, var(--accent-softer), transparent 72%), var(--bg);
}

.auth-main {
  flex: 1;
  display: grid;
  place-items: center;
  padding: clamp(48px, 8vw, 96px) var(--gutter);
  position: relative;
}

.auth-shell {
  width: 100%;
  max-width: 430px;
  position: relative;
}

.auth-card {
  position: relative;
  background: color-mix(in oklch, var(--surface) 88%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(32px, 5vw, 44px);
  box-shadow: 0 30px 60px -34px oklch(0.3 0.06 262 / 0.5);
}

.auth-head { text-align: center; margin-bottom: var(--gap-lg); }
.auth-head .mark { width: 34px; height: 34px; color: var(--accent); margin: 0 auto 16px; }
.auth-head h1 { font-size: 28px; margin-bottom: 8px; }
.auth-head p { margin: 0; color: var(--muted); font-size: 14px; }

.auth-form { display: flex; flex-direction: column; gap: var(--gap-md); }
.auth-form .btn { width: 100%; margin-top: 4px; }
.auth-switch { margin: var(--gap-md) 0 0; text-align: center; font-size: 14px; color: var(--muted); }
.auth-switch a { color: var(--accent); border-bottom: 1px solid color-mix(in oklch, var(--accent) 40%, transparent); }
.auth-switch a:hover { border-color: var(--accent); }

.auth-note {
  margin: var(--gap-md) 0 0;
  padding: 12px 16px;
  border-radius: var(--radius);
  background: var(--accent-softer);
  border: 1px dashed color-mix(in oklch, var(--accent) 40%, var(--border));
  color: var(--muted);
  font-size: 13px;
  text-align: center;
}
.auth-note[hidden] { display: none; }

.auth-back { display: inline-flex; align-items: center; gap: 8px; margin-top: var(--gap-md); font-size: 13.5px; color: var(--muted); }
.auth-back:hover { color: var(--accent); }