/**
 * Life K-Line Shared Styles
 * 共享样式文件 - 响应式设计 + 移动端优化
 */

/* ════════════════ CSS 变量 ════════════════ */
:root {
  --void: #06020f;
  --abyss: #0c0618;
  --nebula: #1a0a2e;
  --amethyst: #7c3aed;
  --orchid: #a855f7;
  --gold: #d4a574;
  --gold-bright: #f0c987;
  --starlight: #f5f0ff;
  --starlight-dim: rgba(245, 240, 255, 0.5);
  --success: #22c55e;
  --error: #ef4444;
  
  /* 间距系统 (8pt grid) */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 48px;
  --space-6: 64px;
  
  /* 字体 */
  --font-heading: 'Cormorant Garamond', serif;
  --font-body: 'Outfit', sans-serif;
  
  /* 圆角 */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  
  /* 阴影 */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
}

/* ════════════════ 基础重置 ════════════════ */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  background: var(--void);
  color: var(--starlight);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
}

/* ════════════════ 顶部导航栏 ════════════════ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  background: rgba(6, 2, 15, 0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(124, 58, 237, 0.1);
}

.navbar-brand {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--gold);
  text-decoration: none;
  letter-spacing: 0.1em;
}

.navbar-brand span {
  color: var(--orchid);
  font-weight: 600;
}

.navbar-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* ════════════════ 返回按钮 ════════════════ */
.back-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  color: var(--starlight-dim);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 300;
  letter-spacing: 0.05em;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  transition: all 0.3s ease;
}

.back-link:hover {
  color: var(--gold);
  background: rgba(124, 58, 237, 0.1);
}

.back-link svg {
  width: 16px;
  height: 16px;
}

/* ════════════════ 内容容器 ════════════════ */
.content {
  position: relative;
  z-index: 1;
  max-width: 960px;
  margin: 0 auto;
  padding: calc(80px + var(--space-4)) var(--space-4) var(--space-4);
}

/* ════════════════ 区块卡片 ════════════════ */
.section-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(124, 58, 237, 0.1);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-3);
  overflow: hidden;
  position: relative;
}

.section-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--amethyst), transparent);
  opacity: 0.3;
}

.section-card-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4) 0;
}

.section-card-header h2 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 400;
  color: var(--gold-bright);
}

.section-card-header .badge {
  margin-left: auto;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold);
  padding: 4px 12px;
  background: rgba(212, 165, 116, 0.1);
  border-radius: 20px;
}

.section-card-body {
  padding: var(--space-3) var(--space-4) var(--space-4);
}

/* ════════════════ 信息项 ════════════════ */
.info-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-2) 0;
  border-bottom: 1px solid rgba(124, 58, 237, 0.06);
}

.info-item:last-child {
  border-bottom: none;
}

.info-label {
  font-size: 0.8rem;
  font-weight: 300;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--starlight-dim);
}

.info-value {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  color: var(--starlight);
}

/* ════════════════ 五行条 ════════════════ */
.element-bar-row {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}

.element-label {
  width: 50px;
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--starlight-dim);
  text-transform: uppercase;
}

.element-bar {
  flex: 1;
  height: 6px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 3px;
  overflow: hidden;
}

.element-bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 1s ease;
}

.element-count {
  width: 24px;
  font-size: 0.85rem;
  font-weight: 400;
  color: var(--starlight);
  text-align: right;
}

/* ════════════════ K 线图容器 ════════════════ */
#kline-chart {
  width: 100%;
  height: 320px;
  min-height: 280px;
}

/* ════════════════ 锁定内容 ════════════════ */
.locked-wrapper {
  position: relative;
}

.locked-content {
  padding: var(--space-3) 0;
}

.locked-content p {
  font-weight: 300;
  line-height: 1.8;
  color: var(--starlight-dim);
  margin-bottom: var(--space-2);
}

/* 渐变模糊遮罩 - 底部浮层设计 */
.lock-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  top: 40%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(
    180deg,
    rgba(6, 2, 15, 0) 0%,
    rgba(6, 2, 15, 0.6) 30%,
    rgba(6, 2, 15, 0.9) 100%
  );
  backdrop-filter: blur(4px);
  border-radius: var(--radius-md);
  text-align: center;
  padding: var(--space-5) var(--space-4);
}

.lock-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-2);
  opacity: 0.9;
}

.lock-overlay h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 400;
  margin-bottom: var(--space-2);
  color: var(--starlight);
}

.lock-features {
  list-style: none;
  margin-bottom: var(--space-3);
  text-align: left;
  max-width: 300px;
}

.lock-features li {
  padding: 6px 0;
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--starlight-dim);
}

.lock-features li::before {
  content: '✦ ';
  color: var(--gold);
}

.unlock-btn {
  display: inline-block;
  padding: 14px 36px;
  background: linear-gradient(135deg, var(--amethyst), rgba(124, 58, 237, 0.7));
  border: 1px solid rgba(168, 85, 247, 0.3);
  border-radius: var(--radius-sm);
  color: #fff;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s ease;
}

.unlock-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(124, 58, 237, 0.35);
  border-color: var(--orchid);
}

.unlock-price {
  margin-top: var(--space-2);
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--starlight-dim);
}

/* ════════════════ 分享按钮 ════════════════ */
.share-buttons {
  display: flex;
  gap: var(--space-2);
  margin-top: var(--space-3);
  padding-top: var(--space-3);
  border-top: 1px solid rgba(124, 58, 237, 0.06);
}

.share-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  color: var(--starlight-dim);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 400;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.3s ease;
}

.share-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--gold);
  color: var(--gold);
}

.share-btn svg {
  width: 16px;
  height: 16px;
}

/* ════════════════ 分隔线 ════════════════ */
.section-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) 0;
  opacity: 0.3;
}

.section-divider::before,
.section-divider::after {
  content: '';
  height: 1px;
  width: 60px;
  background: linear-gradient(90deg, transparent, var(--gold));
}

.section-divider span {
  color: var(--gold);
  font-size: 0.9rem;
}

/* ════════════════ 页脚 ════════════════ */
.disclaimer {
  text-align: center;
  padding: var(--space-5) 0;
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--starlight-dim);
  border-top: 1px solid rgba(124, 58, 237, 0.06);
  margin-top: var(--space-5);
  line-height: 1.8;
}

/* ════════════════ 响应式设计 ════════════════ */

/* Tablet (768px) */
@media (max-width: 768px) {
  :root {
    --space-4: 24px;
    --space-5: 32px;
    --space-6: 48px;
  }
  
  .navbar {
    padding: var(--space-2) var(--space-3);
  }
  
  .navbar-brand {
    font-size: 1.2rem;
  }
  
  .content {
    padding-top: calc(70px + var(--space-3));
  }
  
  .section-card-header h2 {
    font-size: 1.2rem;
  }
  
  #kline-chart {
    height: 280px;
  }
  
  .lock-overlay {
    padding: var(--space-4) var(--space-3);
  }
}

/* Mobile (480px) */
@media (max-width: 480px) {
  .navbar {
    padding: var(--space-2);
  }
  
  .navbar-brand {
    font-size: 1rem;
  }
  
  .navbar-actions {
    gap: var(--space-1);
  }
  
  .content {
    padding: calc(60px + var(--space-2)) var(--space-2) var(--space-2);
  }
  
  .section-card-header {
    padding: var(--space-2) var(--space-2) 0;
    flex-wrap: wrap;
  }
  
  .section-card-header h2 {
    font-size: 1.1rem;
  }
  
  .section-card-header .badge {
    font-size: 0.6rem;
    padding: 3px 8px;
  }
  
  .section-card-body {
    padding: var(--space-2);
  }
  
  .info-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }
  
  .info-value {
    font-size: 1rem;
  }
  
  .element-bar-row {
    flex-wrap: wrap;
  }
  
  .element-label {
    width: 100%;
    margin-bottom: 4px;
  }
  
  #kline-chart {
    height: 240px;
    min-height: 200px;
  }
  
  .lock-icon {
    font-size: 2rem;
  }
  
  .lock-overlay h3 {
    font-size: 1.2rem;
  }
  
  .lock-features {
    font-size: 0.8rem;
  }
  
  .unlock-btn {
    padding: 12px 24px;
    font-size: 0.8rem;
  }
  
  .share-buttons {
    flex-wrap: wrap;
  }
  
  .share-btn {
    flex: 1;
    min-width: 120px;
    justify-content: center;
  }
  
  .back-link {
    font-size: 0.8rem;
    padding: 8px 12px;
  }
  
  .back-link svg {
    width: 14px;
    height: 14px;
  }
}

/* Small Mobile (360px) */
@media (max-width: 360px) {
  .navbar-brand {
    font-size: 0.9rem;
  }
  
  .content {
    padding: calc(50px + var(--space-2)) var(--space-1) var(--space-1);
  }
  
  #kline-chart {
    height: 200px;
    min-height: 180px;
  }
  
  .lock-overlay {
    top: 50%;
    padding: var(--space-3);
  }
  
  .lock-overlay h3 {
    font-size: 1rem;
  }
  
  .lock-features li {
    font-size: 0.75rem;
  }
}