:root {
  color-scheme: dark;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", sans-serif;
  background: #12130f;
  color: #f6f4ea;
}

* { box-sizing: border-box; }

body {
  min-width: 320px;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  background:
    radial-gradient(circle at 50% 10%, rgba(215, 241, 80, 0.1), transparent 38%),
    #12130f;
}

button { font: inherit; }

.lock-shell {
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: max(24px, env(safe-area-inset-top)) 20px max(24px, env(safe-area-inset-bottom));
}

.lock-card {
  width: min(100%, 380px);
  text-align: center;
}

.brand-mark {
  display: grid;
  width: 54px;
  height: 54px;
  margin: 0 auto 20px;
  place-items: center;
  border: 1px solid rgba(215, 241, 80, 0.5);
  border-radius: 14px;
  background: #d7f150;
  color: #12130f;
  font-size: 27px;
  font-weight: 850;
  letter-spacing: -0.06em;
}

.eyebrow {
  margin: 0 0 10px;
  color: #d7f150;
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.18em;
}

h1 {
  margin: 0;
  font-size: clamp(27px, 8vw, 36px);
  letter-spacing: -0.035em;
}

.hint {
  max-width: 300px;
  margin: 12px auto 0;
  color: #a6a79f;
  font-size: 14px;
  line-height: 1.55;
}

.message {
  min-height: 44px;
  margin: 20px 0 0;
  color: #ff8d80;
  font-size: 13px;
  line-height: 1.6;
}

.google-login {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  min-height: 48px;
  margin: 32px 0 0;
  padding: 12px 16px;
  border: 1px solid #dadce0;
  border-radius: 8px;
  background: #fff;
  color: #1f1f1f;
  font-weight: 600;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background 100ms ease;
}

.google-login:hover { background: #f2f4f8; }
.google-login:focus-visible { outline: 3px solid #d7f150; outline-offset: 4px; }
.google-login:disabled { cursor: wait; opacity: 0.6; }
.google-login svg { flex-shrink: 0; }
.domain-note { margin: 16px 0 0; color: #a6a79f; font-size: 13px; line-height: 1.6; }
.domain-note strong { color: #f6f4ea; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}