/* =========================
 Beta Entry Page / 封閉測試導覽頁
 獨立樣式檔，僅供 beta.html 使用
 不影響既有頁面的 CSS
 ========================= */

:root {
  --beta-bg-top: #8b5734;
  --beta-bg-bottom: #6c4024;
  --beta-paper: #ecd9af;
  --beta-paper-soft: #f7e9c8;
  --beta-ink: #4f2c1a;
  --beta-ink-soft: rgba(79, 44, 26, 0.78);
  --beta-line: rgba(92, 52, 28, 0.22);
  --beta-brown: #7a3f22;
  --beta-brown-dark: #5b2d19;
  --beta-warning: #8b5d2a;
  --beta-warning-soft: #f3e1bc;
  --beta-shadow: 0 16px 34px rgba(54, 28, 14, 0.18);
  --beta-radius-lg: 20px;
  --beta-radius-md: 14px;
}

body {
  background: linear-gradient(180deg, var(--beta-bg-top) 0%, var(--beta-bg-bottom) 100%);
  color: var(--beta-ink);
}

.beta-page {
  max-width: 480px;
  margin: 0 auto;
  padding: 32px 20px 48px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.beta-header {
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.beta-kicker {
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--beta-paper-soft);
  opacity: 0.85;
}

.beta-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--beta-paper-soft);
  margin: 0;
}

.beta-subtitle {
  font-size: 14px;
  color: var(--beta-paper-soft);
  opacity: 0.9;
  margin: 0;
}

.beta-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.beta-step {
  display: flex;
  align-items: center;
  gap: 14px;
  background: linear-gradient(180deg, var(--beta-paper) 0%, #e2c78f 100%);
  border-radius: var(--beta-radius-lg);
  box-shadow: var(--beta-shadow);
  padding: 14px 16px;
}

.beta-step-index {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--beta-brown);
  color: var(--beta-paper-soft);
  font-weight: 700;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.beta-step-button {
  flex: 1 1 auto;
  display: block;
  text-align: center;
  padding: 14px 16px;
  border-radius: var(--beta-radius-md);
  background: var(--beta-brown);
  color: var(--beta-paper-soft);
  font-size: 16px;
  font-weight: 700;
  text-decoration: none;
}

.beta-step-button:hover,
.beta-step-button:focus-visible {
  background: var(--beta-brown-dark);
}

.beta-step-button:focus-visible {
  outline: 3px solid var(--beta-paper-soft);
  outline-offset: 2px;
}

.beta-flow-note {
  text-align: center;
  font-size: 14px;
  color: var(--beta-paper-soft);
  margin: 0;
}

.beta-notice {
  background: var(--beta-warning-soft);
  color: var(--beta-warning);
  border: 1px solid var(--beta-line);
  border-radius: var(--beta-radius-md);
  padding: 14px 16px;
  font-size: 13px;
  line-height: 1.7;
  text-align: center;
  margin: 0;
}

@media (min-width: 600px) {
  .beta-page {
    padding-top: 56px;
  }

  .beta-title {
    font-size: 30px;
  }
}