/* ===== 基因计算器首页 — 页面专属样式 ===== */

/* 全局背景 */
.app-container {
  background: linear-gradient(180deg, #F0F7F4 0%, #F8FBFA 30%, var(--color-bg-page) 60%);
  min-height: 100vh;
}

/* ===== 顶部 Hero 区域 ===== */
.hero-section {
  position: relative;
  padding: calc(var(--safe-top) + 12px) var(--space-4) 16px;
  overflow: hidden;
}

.hero-watermark {
  position: absolute;
  top: calc(var(--safe-top) - 10px);
  right: 12px;
  width: 140px;
  height: 160px;
  opacity: 0.12;
  pointer-events: none;
}

.hero-watermark svg {
  width: 100%;
  height: 100%;
}

.hero-title {
  font-size: 28px;
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
  line-height: 1.2;
  margin-bottom: 4px;
}

.hero-subtitle {
  font-size: 14px;
  color: var(--color-text-secondary);
  font-weight: var(--font-regular);
}

/* 右上角更多按钮 */
.hero-more-btn {
  position: absolute;
  top: calc(var(--safe-top) + 12px);
  right: var(--space-4);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.85);
  border: 0.5px solid rgba(0, 0, 0, 0.06);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  transition: background var(--transition-micro);
  z-index: 2;
}

.hero-more-btn:active {
  background: rgba(255, 255, 255, 0.95);
}

/* ===== 页面内容区 ===== */
.page-content {
  padding-top: 0;
  padding-bottom: calc(var(--safe-bottom) + 24px);
  padding-left: var(--space-4);
  padding-right: var(--space-4);
}

/* ===== 父本/母本卡片 ===== */
.parent-card {
  border-radius: 20px;
  padding: 20px;
  margin-bottom: 36px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
  background: var(--color-bg-page);
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.card-header-left {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.card-title-wrap {
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: 18px;
  font-weight: var(--font-bold);
  color: var(--color-text-primary);
  line-height: 1.3;
}

.parent-card.father .card-title {
  color: #1976D2;
}

.parent-card.mother .card-title {
  color: #C46882;
}

.card-subtitle {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

.card-subtitle .count {
  color: var(--color-primary-600);
  font-weight: var(--font-semibold);
}

.card-subtitle .count.full {
  color: var(--color-error);
}

.btn-clear {
  font-size: 14px;
  color: var(--color-text-secondary);
  padding: 4px 8px;
  margin-top: 2px;
  transition: opacity var(--transition-micro);
  visibility: hidden;
}

.btn-clear.visible {
  visibility: visible;
}

.btn-clear:active {
  opacity: 0.5;
}

/* ===== 基因标签 ===== */
.tags-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: 16px;
}

.gene-tag {
  white-space: nowrap;
  line-height: 1.3;
}

/* ===== 虚线添加按钮 ===== */
.add-gene-btn {
  width: 100%;
  padding: 12px;
  border: 2px dashed #C8D3C5;
  border-radius: var(--radius-md);
  background: transparent;
  font-size: 14px;
  font-weight: var(--font-regular);
  color: var(--color-primary-600);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  transition: all var(--transition-micro);
  -webkit-user-select: none;
  user-select: none;
  min-height: 44px;
}

.add-gene-btn:active {
  background: rgba(56, 142, 60, 0.04);
  border-color: var(--color-primary-400);
}

.add-gene-btn svg {
  width: 14px;
  height: 14px;
  color: var(--color-primary-600);
}

.add-gene-btn:disabled {
  border-color: rgba(0, 0, 0, 0.08);
  color: var(--color-text-tertiary);
  cursor: not-allowed;
}

.add-gene-btn:disabled svg {
  color: var(--color-text-tertiary);
}

/* ===== 圆形交换按钮 ===== */
.swap-wrap {
  display: flex;
  justify-content: center;
  position: relative;
  margin: -18px 0;
  z-index: 10;
}

.swap-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-bg-page);
  border: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-secondary);
  transition: transform var(--transition-micro), opacity var(--transition-micro);
  -webkit-user-select: none;
  user-select: none;
}

.swap-btn:active {
  transform: scale(0.92);
}

.swap-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  transform: none;
}

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

/* ===== 底部计算栏 ===== */
.bottom-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  margin: 0 auto;
  width: 100%;
  max-width: var(--app-width);
  height: calc(var(--safe-bottom) + 52px);
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
  border-top: none;
  z-index: var(--z-sticky);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-4);
  padding-bottom: var(--safe-bottom);
}

.bottom-bar .selected-summary {
  font-size: 16px;
  font-weight: var(--font-medium);
  color: var(--color-text-primary);
}

.bottom-bar .selected-summary .count-num {
  color: var(--color-primary-600);
  font-weight: var(--font-semibold);
}

.calc-btn {
  height: 36px;
  padding: 0 var(--space-5);
  border-radius: var(--radius-md);
  background: var(--color-primary-600);
  color: var(--color-text-inverse);
  font-size: 15px;
  font-weight: var(--font-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition-micro), opacity var(--transition-micro);
  -webkit-user-select: none;
  user-select: none;
  margin-left: auto;
}

.calc-btn:active {
  transform: scale(0.97);
  opacity: 0.9;
}

.calc-btn:disabled {
  background: var(--ios-fill);
  color: var(--ios-tertiary-label);
  cursor: not-allowed;
  transform: none;
  opacity: 1;
}

.calc-btn .spinner {
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

/* ===== 说明文字 ===== */
.footer-note {
  position: fixed;
  bottom: calc(var(--safe-bottom) + 52px + 20px);
  left: 0;
  right: 0;
  margin: 0 auto;
  width: 100%;
  max-width: var(--app-width);
  font-size: 12px;
  color: var(--color-text-tertiary);
  text-align: center;
  line-height: 1.6;
  pointer-events: none;
  z-index: 1;
}