/* mortgage_calculator_4926/frontend/css/style.css */
@import url('https://fonts.loli.net/css2?family=Noto+Sans+SC:wght@300;400;500;700&display=swap');

:root {
  --primary-gradient: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
  --secondary-gradient: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  --success-color: #10b981;
  --danger-color: #ef4444;
  --warning-color: #f59e0b;
  --info-color: #3b82f6;
  --text-primary: #1f2937;
  --text-secondary: #4b5563;
  --text-light: #9ca3af;
  --border-color: #e5e7eb;
  --card-bg: rgba(255, 255, 255, 0.95);
  --card-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
  color: var(--text-primary);
  background: var(--secondary-gradient);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
}

/* 美化滚动条 */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: rgba(0, 0, 0, 0.05);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb {
  background: rgba(106, 17, 203, 0.3);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(106, 17, 203, 0.5);
}

/* 卡片样式增强 */
.card {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border-radius: 1rem;
  box-shadow: var(--card-shadow);
  transition: var(--transition-smooth);
  border: 1px solid rgba(255, 255, 255, 0.3);
  overflow: hidden;
}

.card:hover {
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.05);
}

/* 表单元素样式 */
input[type="number"],
input[type="date"],
input[type="text"],
select {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: 0.5rem;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
  background-color: rgba(255, 255, 255, 0.8);
  color: var(--text-primary);
}

input:focus,
select:focus {
  outline: none;
  border-color: #2575fc;
  box-shadow: 0 0 0 3px rgba(37, 117, 252, 0.2);
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  color: var(--text-secondary);
}

/* 按钮样式 */
.btn-primary {
  background: var(--primary-gradient);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 6px -1px rgba(37, 117, 252, 0.2);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(37, 117, 252, 0.4);
}

.btn-primary:active {
  transform: translateY(1px);
}

/* 标签页样式 */
.tab {
  position: relative;
  padding: 0.75rem 1rem;
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition-smooth);
  color: var(--text-secondary);
}

.tab.active {
  color: #2575fc;
  font-weight: 600;
}

.tab.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: #2575fc;
  border-top-left-radius: 3px;
  border-top-right-radius: 3px;
}

.tab:hover:not(.active) {
  color: #6a11cb;
  background-color: rgba(37, 117, 252, 0.05);
}

/* 结果卡片样式 */
.result-card {
  transition: var(--transition-smooth);
  padding: 1.5rem;
}

.result-card:hover {
  transform: translateY(-5px);
}

.result-card h3 {
  color: #6a11cb;
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

/* 表格样式 */
table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1rem;
}

th, td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

th {
  background-color: rgba(37, 117, 252, 0.05);
  font-weight: 600;
  color: var(--text-secondary);
  white-space: nowrap;
}

tr:nth-child(even) {
  background-color: rgba(37, 117, 252, 0.02);
}

tr:hover {
  background-color: rgba(37, 117, 252, 0.05);
}

/* 利率调整和提前还款表单样式 */
#rate-adjustment-container,
#prepayment-container {
  max-height: 300px;
  overflow-y: auto;
  border-radius: 0.5rem;
  padding: 0.5rem;
  background-color: rgba(255, 255, 255, 0.5);
}

/* 提示框样式 */
.tooltip {
  position: relative;
  display: inline-block;
}

.tooltip .tooltiptext {
  visibility: hidden;
  width: 200px;
  background-color: rgba(45, 55, 72, 0.95);
  color: white;
  text-align: center;
  border-radius: 6px;
  padding: 8px 10px;
  position: absolute;
  z-index: 100;
  bottom: 125%;
  left: 50%;
  margin-left: -100px;
  opacity: 0;
  transition: opacity 0.3s;
  font-size: 0.85rem;
  font-weight: normal;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  pointer-events: none;
}

.tooltip .tooltiptext::after {
  content: "";
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -5px;
  border-width: 5px;
  border-style: solid;
  border-color: rgba(45, 55, 72, 0.95) transparent transparent transparent;
}

.tooltip:hover .tooltiptext {
  visibility: visible;
  opacity: 1;
}

/* 粒子效果容器 */
#particles-js {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

/* 返回顶部按钮样式 */
#back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: linear-gradient(135deg, #6a11cb 0%, #2575fc 100%);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
  z-index: 99;
}

#back-to-top.show {
  opacity: 1;
  transform: translateY(0);
}

#back-to-top:hover {
  transform: translateY(-5px) !important;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

/* 导出按钮样式 */
.export-btn {
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-smooth);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  color: white;
}

.export-btn i {
  margin-right: 0.5rem;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .card {
    padding: 1rem;
  }
  
  .tab {
    padding: 0.5rem 0.75rem;
    font-size: 0.9rem;
  }
  
  th, td {
    padding: 0.5rem;
    font-size: 0.875rem;
  }
  
  .tooltip .tooltiptext {
    width: 160px;
    margin-left: -80px;
  }
}

/* 小屏幕适配 */
@media (max-width: 480px) {
  input[type="number"],
  input[type="date"],
  input[type="text"],
  select {
    padding: 0.5rem 0.75rem;
  }
  
  .btn-primary {
    padding: 0.5rem 1rem;
  }
  
  #rate-adjustment-container,
  #prepayment-container {
    max-height: 250px;
  }
}

/* 动画效果 */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.05); }
  100% { transform: scale(1); }
}

.fade-in {
  animation: fadeIn 0.5s ease-out;
}

.pulse {
  animation: pulse 2s infinite;
}

/* 利率调整和提前还款项目样式 */
#rate-adjustment-container > div,
#prepayment-container > div {
  background-color: rgba(255, 255, 255, 0.9);
  border-radius: 0.5rem;
  padding: 1rem;
  margin-bottom: 1rem;
  border-left: 3px solid #2575fc;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  transition: var(--transition-smooth);
}

#rate-adjustment-container > div:hover,
#prepayment-container > div:hover {
  transform: translateX(5px);
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

/* 特殊高亮和强调 */
.highlight-success {
  color: var(--success-color);
  font-weight: 600;
}

.highlight-danger {
  color: var(--danger-color);
  font-weight: 600;
}

.highlight-warning {
  color: var(--warning-color);
  font-weight: 600;
}

.highlight-info {
  color: var(--info-color);
  font-weight: 600;
}