/* NovelCraft - 小说创作助手 */
:root {
  --bg-primary: #0f0f1a;
  --bg-secondary: #1a1a2e;
  --bg-card: #16213e;
  --text-primary: #e8e6e3;
  --text-secondary: #a8a4a0;
  --accent-gold: #c9a96e;
  --accent-gold-dim: #a8884a;
  --border-color: #2a2a3e;
  --shadow: 0 4px 24px rgba(0,0,0,0.4);
  --radius: 12px;
  --font-serif: 'Noto Serif SC', Georgia, serif;
  --font-sans: 'Inter', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --transition: 0.3s ease;
}
[data-theme="light"] {
  --bg-primary: #faf8f5;
  --bg-secondary: #f0ede8;
  --bg-card: #ffffff;
  --text-primary: #2c2c2c;
  --text-secondary: #6b6b6b;
  --border-color: #e0ddd8;
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
}
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  min-height: 100vh;
  transition: background var(--transition), color var(--transition);
}
a { color: var(--accent-gold); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent-gold-dim); }

/* Navigation */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(15,15,26,0.85); backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  padding: 0 2rem; height: 64px; display: flex; align-items: center;
  justify-content: space-between; transition: background var(--transition);
}
[data-theme="light"] .navbar { background: rgba(250,248,245,0.9); }
.nav-logo { display: flex; align-items: center; gap: 10px; font-family: var(--font-serif); font-size: 1.15rem; font-weight: 700; color: var(--accent-gold); }
.nav-logo i { font-size: 1.3rem; }
.nav-links { display: flex; gap: 0.1rem; list-style: none; }
.nav-links a {
  padding: 0.5rem 0.9rem; border-radius: 8px; font-size: 0.85rem;
  color: var(--text-secondary); transition: all var(--transition);
  white-space: nowrap;
}
.nav-links a:hover, .nav-links a.active { color: var(--accent-gold); background: rgba(201,169,110,0.1); }
.nav-actions { display: flex; align-items: center; gap: 12px; }
.theme-toggle {
  background: none; border: 1px solid var(--border-color); color: var(--text-secondary);
  width: 36px; height: 36px; border-radius: 50%; cursor: pointer;
  display: flex; align-items: center; justify-content: center; font-size: 1rem;
  transition: all var(--transition);
}
.theme-toggle:hover { border-color: var(--accent-gold); color: var(--accent-gold); }
.btn { padding: 0.6rem 1.5rem; border-radius: 8px; border: none; cursor: pointer;
  font-family: var(--font-sans); font-size: 0.85rem; font-weight: 500;
  transition: all var(--transition); display: inline-flex; align-items: center; gap: 6px; }
.btn-primary { background: var(--accent-gold); color: #1a1a2e; }
.btn-primary:hover { background: var(--accent-gold-dim); transform: translateY(-1px); }
.btn-outline { background: transparent; border: 1px solid var(--border-color); color: var(--text-secondary); }
.btn-outline:hover { border-color: var(--accent-gold); color: var(--accent-gold); }
.btn-sm { padding: 0.4rem 1rem; font-size: 0.8rem; }

/* Hero Section */
.hero {
  padding: 8rem 2rem 4rem; text-align: center;
  background: linear-gradient(180deg, var(--bg-secondary) 0%, var(--bg-primary) 100%);
  min-height: 70vh; display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.hero h1 { font-family: var(--font-serif); font-size: 3.2rem; font-weight: 700; line-height: 1.3; margin-bottom: 1rem; }
.hero h1 span { color: var(--accent-gold); }
.hero-sub { font-size: 1.1rem; color: var(--text-secondary); max-width: 600px; margin-bottom: 0.5rem; }
.hero-quote {
  font-family: var(--font-serif); font-style: italic; color: var(--accent-gold);
  font-size: 1rem; margin: 1.5rem 0 2.5rem; padding: 1rem 2rem;
  border-left: 3px solid var(--accent-gold); opacity: 0.8;
}
.module-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1rem; max-width: 1000px; width: 100%; margin-top: 1rem;
}
.module-card {
  background: var(--bg-card); border: 1px solid var(--border-color);
  border-radius: var(--radius); padding: 1.5rem; cursor: pointer;
  transition: all var(--transition); text-align: center;
}
.module-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: var(--accent-gold); }
.module-card i { font-size: 2rem; color: var(--accent-gold); margin-bottom: 0.8rem; }
.module-card h3 { font-family: var(--font-serif); font-size: 1rem; margin-bottom: 0.4rem; }
.module-card p { font-size: 0.8rem; color: var(--text-secondary); }

/* Page Container */
.page-container { display: none; padding: 6rem 2rem 3rem; max-width: 1100px; margin: 0 auto; }
.page-container.active { display: block; animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
.page-header { margin-bottom: 2rem; }
.page-header h2 { font-family: var(--font-serif); font-size: 2rem; margin-bottom: 0.5rem; }
.page-header p { color: var(--text-secondary); font-size: 0.95rem; }

/* Cards */
.card { background: var(--bg-card); border: 1px solid var(--border-color); border-radius: var(--radius); padding: 1.5rem; margin-bottom: 1.5rem; }
.card h3 { font-family: var(--font-serif); font-size: 1.1rem; margin-bottom: 1rem; color: var(--accent-gold); }
.card-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }

/* Form Elements */
input, textarea, select {
  width: 100%; padding: 0.7rem 1rem; border: 1px solid var(--border-color);
  border-radius: 8px; background: var(--bg-primary); color: var(--text-primary);
  font-family: var(--font-sans); font-size: 0.9rem; transition: border var(--transition);
  margin-bottom: 0.8rem;
}
input:focus, textarea:focus, select:focus { outline: none; border-color: var(--accent-gold); }
textarea { min-height: 120px; resize: vertical; line-height: 1.6; }
label { display: block; font-size: 0.85rem; color: var(--text-secondary); margin-bottom: 0.3rem; font-weight: 500; }

/* Output / Result */
.result-box {
  background: var(--bg-primary); border: 1px solid var(--border-color);
  border-radius: 8px; padding: 1.2rem; margin-top: 1rem;
  font-family: var(--font-serif); line-height: 1.8; font-size: 0.95rem;
  white-space: pre-wrap;
}
.result-box .label { font-family: var(--font-sans); font-size: 0.75rem; color: var(--accent-gold); text-transform: uppercase; letter-spacing: 1px; margin-bottom: 0.5rem; }

/* Tag / Badge */
.tag { display: inline-block; padding: 0.2rem 0.6rem; border-radius: 4px; font-size: 0.75rem; background: rgba(201,169,110,0.15); color: var(--accent-gold); margin: 0.2rem; }

/* Checklist */
.checklist { list-style: none; }
.checklist li { padding: 0.5rem 0; border-bottom: 1px solid var(--border-color); display: flex; align-items: center; gap: 10px; }
.checklist li:last-child { border-bottom: none; }
.checklist input[type="checkbox"] { width: auto; margin: 0; accent-color: var(--accent-gold); }
.checklist label { margin: 0; cursor: pointer; }

/* Footer */
.footer {
  border-top: 1px solid var(--border-color); padding: 2rem; text-align: center;
  color: var(--text-secondary); font-size: 0.85rem; margin-top: 3rem;
}
.footer a { color: var(--accent-gold); }

/* Guide Articles */
.article { line-height: 1.9; }
.article h4 { font-family: var(--font-serif); font-size: 1.1rem; margin: 1.5rem 0 0.5rem; color: var(--accent-gold); }
.article p { margin-bottom: 1rem; color: var(--text-secondary); }
.article blockquote { border-left: 3px solid var(--accent-gold); padding-left: 1rem; margin: 1rem 0; font-style: italic; color: var(--text-secondary); }

/* Responsive */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hero h1 { font-size: 2rem; }
  .hero { padding: 6rem 1.5rem 3rem; }
  .page-container { padding: 5rem 1rem 2rem; }
  .card-row { grid-template-columns: 1fr; }
  .module-grid { grid-template-columns: repeat(2, 1fr); }
}