/* ============================================================
   天秤哲思・法律事務所 Libra Logic & Partners
   W13 旗艦版 - 全站共用樣式表
   ============================================================ */

:root {
  --primary-navy: #1A2B3C;
  --primary-ivory: #F5F5F0;
  --accent-gold: #9B7E4B;
  --text-dark: #2C3E50;
  --text-light: #7F8C8D;
  --border-light: #E8E6E1;
  --divider-gold: #D4AF85;
}

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

html, body {
  font-family: 'Georgia', 'Garamond', serif;
  background-color: var(--primary-ivory);
  color: var(--text-dark);
  line-height: 1.8;
}

/* ============================================================
   全站通用樣式
   ============================================================ */

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
}

.container-fluid {
  width: 100%;
  padding: 0 40px;
}

/* 導航列 */
nav {
  background-color: var(--primary-navy);
  padding: 20px 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

nav .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  font-size: 20px;
  font-weight: bold;
  color: var(--accent-gold);
  text-decoration: none;
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 40px;
}

.nav-links a {
  color: var(--primary-ivory);
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 0.5px;
  transition: color 0.3s ease;
  text-transform: uppercase;
}

.nav-links a:hover {
  color: var(--accent-gold);
}

/* 頁面標題區塊 */
.page-header {
  background: linear-gradient(135deg, var(--primary-navy) 0%, #0F1A28 100%);
  color: var(--primary-ivory);
  padding: 80px 0;
  text-align: center;
  border-bottom: 3px solid var(--accent-gold);
}

.page-header h1 {
  font-size: 48px;
  margin-bottom: 15px;
  letter-spacing: 2px;
}

.page-header p {
  font-size: 18px;
  color: var(--divider-gold);
  font-style: italic;
}

/* Section 分隔線 */
.divider {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--divider-gold), transparent);
  margin: 60px 0;
}

/* 標題樣式 */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Georgia', serif;
  color: var(--primary-navy);
  margin-bottom: 20px;
  letter-spacing: 1px;
}

h1 {
  font-size: 42px;
  font-weight: bold;
}

h2 {
  font-size: 36px;
  font-weight: bold;
  position: relative;
  padding-bottom: 15px;
}

h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 2px;
  background-color: var(--accent-gold);
}

h3 {
  font-size: 24px;
  font-weight: 600;
}

h4 {
  font-size: 18px;
  font-weight: 600;
}

/* 段落與文本 */
p {
  margin-bottom: 15px;
  color: var(--text-dark);
  font-size: 16px;
}

a {
  color: var(--accent-gold);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--primary-navy);
  text-decoration: underline;
}

/* 按鈕樣式 */
.btn {
  display: inline-block;
  padding: 14px 32px;
  background-color: var(--accent-gold);
  color: white;
  text-decoration: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  transition: all 0.3s ease;
  border: 2px solid var(--accent-gold);
  cursor: pointer;
  text-transform: uppercase;
  font-family: 'Arial', sans-serif;
}

.btn:hover {
  background-color: transparent;
  color: var(--accent-gold);
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(155, 126, 75, 0.2);
}

.btn-secondary {
  background-color: transparent;
  color: var(--accent-gold);
  border: 2px solid var(--accent-gold);
}

.btn-secondary:hover {
  background-color: var(--accent-gold);
  color: white;
}

.btn-disabled {
  background-color: #CCCCCC;
  border-color: #CCCCCC;
  color: white;
  cursor: not-allowed;
  opacity: 0.6;
}

.btn-disabled:hover {
  background-color: #CCCCCC;
  color: white;
  transform: none;
  box-shadow: none;
}

/* Section 容器 */
section {
  padding: 80px 0;
}

section:nth-child(even) {
  background-color: #FAFAF8;
}

/* Grid 系統 */
.row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 40px;
  margin: 40px 0;
}

.row.row-2 {
  grid-template-columns: repeat(2, 1fr);
}

.row.row-3 {
  grid-template-columns: repeat(3, 1fr);
}

.row.row-4 {
  grid-template-columns: repeat(4, 1fr);
}

.col {
  padding: 20px;
}

/* 卡片樣式 */
.card {
  background-color: white;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  padding: 30px;
  transition: all 0.3s ease;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.card:hover {
  box-shadow: 0 8px 24px rgba(155, 126, 75, 0.15);
  transform: translateY(-4px);
}

.card h3 {
  color: var(--primary-navy);
  margin-bottom: 15px;
}

.card-icon {
  font-size: 32px;
  color: var(--accent-gold);
  margin-bottom: 15px;
}

/* 統計數據展示 */
.stat-box {
  text-align: center;
  padding: 30px;
}

.stat-number {
  font-size: 48px;
  font-weight: bold;
  color: var(--accent-gold);
  font-family: 'Arial', sans-serif;
}

.stat-label {
  font-size: 14px;
  color: var(--text-light);
  margin-top: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* 表單樣式 */
.form-group {
  margin-bottom: 25px;
}

.form-group label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--primary-navy);
  font-size: 14px;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--border-light);
  border-radius: 4px;
  font-family: 'Arial', sans-serif;
  font-size: 14px;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent-gold);
  box-shadow: 0 0 0 3px rgba(155, 126, 75, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

/* 複選框與單選框 */
.checkbox-group,
.radio-group {
  margin-bottom: 20px;
}

.checkbox-item,
.radio-item {
  display: flex;
  align-items: center;
  margin-bottom: 12px;
}

.checkbox-item input,
.radio-item input {
  width: 18px;
  height: 18px;
  margin-right: 10px;
  cursor: pointer;
  accent-color: var(--accent-gold);
}

.checkbox-item label,
.radio-item label {
  margin: 0;
  font-weight: normal;
  cursor: pointer;
}

/* 警告與提示訊息 */
.alert {
  padding: 15px 20px;
  border-radius: 4px;
  margin-bottom: 20px;
  border-left: 4px solid;
}

.alert-warning {
  background-color: #FFF8E1;
  border-color: #FFC107;
  color: #856404;
}

.alert-info {
  background-color: #E7F3FF;
  border-color: #2196F3;
  color: #004085;
}

.alert-danger {
  background-color: #F8D7DA;
  border-color: #F5C6CB;
  color: #721C24;
}

.alert-success {
  background-color: #D4EDDA;
  border-color: #C3E6CB;
  color: #155724;
}

/* 頁腳 */
footer {
  background-color: var(--primary-navy);
  color: var(--primary-ivory);
  padding: 60px 0 30px;
  margin-top: 80px;
  border-top: 3px solid var(--accent-gold);
}

footer .container {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  margin-bottom: 40px;
}

footer h4 {
  color: var(--accent-gold);
  margin-bottom: 20px;
}

footer ul {
  list-style: none;
}

footer ul li {
  margin-bottom: 10px;
}

footer ul li a {
  color: var(--primary-ivory);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.3s ease;
}

footer ul li a:hover {
  color: var(--accent-gold);
}

.footer-bottom {
  border-top: 1px solid rgba(245, 245, 240, 0.2);
  padding-top: 30px;
  text-align: center;
  font-size: 13px;
  color: var(--text-light);
}

/* 響應式設計 */
@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .nav-links {
    gap: 20px;
    font-size: 12px;
  }

  .page-header h1 {
    font-size: 32px;
  }

  h2 {
    font-size: 28px;
  }

  h3 {
    font-size: 20px;
  }

  .row.row-2,
  .row.row-3,
  .row.row-4 {
    grid-template-columns: 1fr;
  }

  footer .container {
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
  }

  section {
    padding: 50px 0;
  }

  .divider {
    margin: 40px 0;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 15px;
  }

  .page-header {
    padding: 50px 0;
  }

  .page-header h1 {
    font-size: 24px;
  }

  .nav-links {
    gap: 15px;
    font-size: 11px;
  }

  h1 {
    font-size: 28px;
  }

  h2 {
    font-size: 22px;
  }

  h3 {
    font-size: 18px;
  }

  footer .container {
    grid-template-columns: 1fr;
  }
}