:root {
  color-scheme: light;
  --bg: #f3f6fb;
  --surface: #ffffff;
  --ink: #10233f;
  --muted: #5b6b82;
  --line: #d8e0ec;
  --brand: #0b4ea2;
  --brand-dark: #08356f;
  --accent: #d62839;
  --success: #0f7a45;
  --shadow: 0 18px 40px rgba(16, 35, 63, 0.08);
  --radius: 22px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Noto Sans TC", "Public Sans", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top right, rgba(11, 78, 162, 0.12), transparent 34%),
    linear-gradient(180deg, #eef3fa 0%, var(--bg) 42%, #edf1f6 100%);
}

.page {
  width: min(720px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.5rem 0 3rem;
}

.hero {
  margin-bottom: 1.5rem;
}

.eyebrow {
  margin: 0 0 0.6rem;
  font: 700 0.78rem/1 "Public Sans", sans-serif;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.hero h1 span {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.58em;
  font-weight: 500;
  color: var(--muted);
}

.lede {
  max-width: 36rem;
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.card {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.4rem;
}

.card + .card {
  margin-top: 1rem;
}

.gate-panel {
  margin-top: 2rem;
}

.gate-title {
  margin: 0 0 1rem;
  font-size: clamp(1.6rem, 4vw, 2rem);
  line-height: 1.2;
}

.gate-title span {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.72em;
  font-weight: 500;
  color: var(--muted);
}

.field-label {
  display: block;
  margin-bottom: 0.55rem;
  font-weight: 700;
}

.field-input {
  width: 100%;
  padding: 1rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: 16px;
  font: inherit;
  font-size: 1.15rem;
  background: #fbfcfe;
}

.field-input:focus {
  outline: 3px solid rgba(11, 78, 162, 0.18);
  border-color: var(--brand);
}

.primary-btn,
.secondary-btn {
  width: 100%;
  margin-top: 1rem;
  padding: 1rem 1.2rem;
  border: 0;
  border-radius: 16px;
  font: inherit;
  font-size: 1.05rem;
  font-weight: 700;
  cursor: pointer;
}

.primary-btn {
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
}

.primary-btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.secondary-btn {
  color: var(--brand-dark);
  background: #edf3fb;
}

.form-error {
  margin: 0.85rem 0 0;
  color: var(--accent);
  font-weight: 500;
}

.status-label {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.status-head h2 {
  margin: 0.25rem 0 0;
  font-size: 1.8rem;
}

.status-message {
  margin: 1rem 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.qr-panel {
  margin-top: 1.2rem;
  text-align: center;
}

.qr-frame {
  display: inline-flex;
  padding: 1rem;
  border-radius: 24px;
  background: #fff;
  border: 1px solid var(--line);
}

.qr-frame img {
  display: block;
  width: min(280px, 70vw);
  height: auto;
}

.qr-hint {
  margin: 1rem 0 0;
  color: var(--muted);
  line-height: 1.5;
}

.success-panel,
.error-panel {
  margin-top: 1.2rem;
  text-align: center;
}

.success-panel {
  padding: 0.5rem 0 0.25rem;
}

.success-badge {
  width: 5rem;
  height: 5rem;
  margin: 0 auto 1rem;
  border-radius: 999px;
  display: grid;
  place-items: center;
  font-size: 2.4rem;
  color: #fff;
  background: var(--success);
  box-shadow: 0 12px 28px rgba(15, 122, 69, 0.28);
  animation: success-pop 0.45s ease-out;
}

@keyframes success-pop {
  0% {
    transform: scale(0.72);
    opacity: 0;
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

.success-title {
  margin: 0 0 0.75rem;
  font-size: clamp(1.8rem, 5vw, 2.35rem);
  line-height: 1.15;
  color: var(--success);
}

.success-title span {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.62em;
  font-weight: 700;
  color: var(--ink);
}

.success-lede {
  margin: 0;
  font-size: 1.15rem;
  line-height: 1.5;
}

.success-note {
  margin: 0.85rem 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.success-done-btn {
  max-width: 18rem;
  margin: 1.35rem auto 0;
}

.status-card.is-success .status-head,
.status-card.is-success .status-message,
.status-card.is-success .qr-panel {
  display: none;
}

.error-panel h3 {
  margin: 0 0 0.5rem;
}

@media (max-width: 640px) {
  .page {
    width: min(100%, calc(100% - 1.2rem));
    padding-top: 1.2rem;
  }

  .card {
    padding: 1rem;
  }
}