/* Minimalist, Calm, Editorial Stylesheet for China Job-Change Record Kit */

:root {
  --bg-canvas: #fbfbf9;
  --bg-surface: #ffffff;
  --text-primary: #1c2024;
  --text-secondary: #586069;
  --text-muted: #7d8792;
  --border-subtle: #e8eaed;
  --border-card: #e2e5e9;
  --accent-sage: #2e5b4f;
  --accent-sage-bg: #eef5f2;
  --accent-gold: #8a6a24;
  --accent-gold-bg: #fdfaf2;
  --radius-card: 12px;
  --radius-badge: 20px;
  --font-serif: "Newsreader", "Charter", "Georgia", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.kit-shell {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem 4rem;
}

.kit-container {
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
}

/* Header */
.kit-header {
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 2rem;
}

.kit-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent-sage);
  background-color: var(--accent-sage-bg);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-badge);
  margin-bottom: 1rem;
}

.kit-title {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 600;
  line-height: 1.25;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  letter-spacing: -0.015em;
}

.kit-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 1.25rem;
}

.kit-disclaimer-box {
  background-color: var(--accent-gold-bg);
  border-left: 3px solid var(--accent-gold);
  padding: 0.75rem 1rem;
  border-radius: 0 6px 6px 0;
  font-size: 0.875rem;
  color: #5c4718;
  line-height: 1.5;
}

.disclaimer-label {
  font-weight: 600;
}

/* 4 Sections */
.kit-sections {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.kit-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-card);
  border-radius: var(--radius-card);
  padding: 1.5rem 1.75rem;
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
  transition: border-color 0.2s ease;
}

.kit-card:hover {
  border-color: #cbd2d9;
}

.card-number {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent-sage);
  background-color: var(--accent-sage-bg);
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 0.1rem;
}

.card-content {
  flex: 1;
}

.card-content h2 {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
  line-height: 1.35;
}

.card-content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Footer */
.kit-footer {
  margin-top: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.kit-resource-line {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.kit-link {
  color: var(--accent-sage);
  text-decoration: underline;
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
  font-weight: 500;
  transition: color 0.15s ease;
}

.kit-link:hover, .kit-link:focus {
  color: #1b3830;
}

.kit-footer-note {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Responsive adjustments */
@media (max-width: 600px) {
  .kit-shell {
    padding: 2rem 1rem 3rem;
  }

  .kit-title {
    font-size: 1.75rem;
  }

  .kit-card {
    padding: 1.25rem;
    gap: 1rem;
  }

  .card-number {
    width: 1.85rem;
    height: 1.85rem;
    font-size: 0.95rem;
  }

  .card-content h2 {
    font-size: 1.15rem;
  }
}