/* ==========================================
   项目收入分成计算器 - 自定义样式
   ========================================== */

/* CSS 变量定义 */
:root {
  --color-primary: #0891B2;
  --color-secondary: #22D3EE;
  --color-success: #22C55E;
  --color-background: #ECFEFF;
  --color-text: #164E63;
  --color-text-muted: #0E7490;
  --color-border: #A5F3FC;
  --color-card: #FFFFFF;
  --color-error: #EF4444;
  --color-warning: #F59E0B;
}

/* 基础样式重置 */
* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--color-background);
  color: var(--color-text);
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Lexend', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* 输入框样式 */
.input-field {
  height: 2.75rem;
  width: 100%;
  padding: 0 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: 0.5rem;
  background-color: white;
  color: var(--color-text);
  font-size: 1rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input-field:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(8, 145, 178, 0.1);
}

.input-field::placeholder {
  color: #94A3B8;
}

.input-field:disabled {
  background-color: #F1F5F9;
  cursor: not-allowed;
}

/* 标签样式 */
.input-label {
  display: block;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 0.375rem;
}

/* 卡片样式 */
.card {
  background-color: var(--color-card);
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05), 0 1px 2px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--color-border);
  transition: box-shadow 0.2s ease;
}

.card:hover {
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05), 0 2px 4px rgba(0, 0, 0, 0.1);
}

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.card-title svg {
  width: 1.25rem;
  height: 1.25rem;
  color: var(--color-primary);
}

/* 按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease;
  border: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background-color: #0E7490;
}

.btn-primary:active {
  transform: scale(0.98);
}

.btn-primary:disabled {
  background-color: #94A3B8;
  cursor: not-allowed;
  transform: none;
}

.btn-success {
  background-color: var(--color-success);
  color: white;
}

.btn-success:hover {
  background-color: #16A34A;
}

.btn-outline {
  background-color: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
}

.btn-outline:hover {
  background-color: var(--color-background);
  border-color: var(--color-primary);
}

.btn-sm {
  padding: 0.5rem 0.75rem;
  font-size: 0.875rem;
}

.btn-icon {
  padding: 0.5rem;
  border-radius: 0.375rem;
}

/* 阶梯配置行样式 */
.tier-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr auto;
  gap: 0.75rem;
  align-items: end;
  padding: 0.75rem;
  background-color: #F8FAFC;
  border-radius: 0.5rem;
  margin-bottom: 0.5rem;
  animation: slideIn 0.2s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.tier-row:last-child {
  margin-bottom: 0;
}

/* 结果区域样式 */
.result-section {
  display: none;
  animation: fadeIn 0.3s ease;
}

.result-section.visible {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-card {
  background: linear-gradient(135deg, #FFFFFF 0%, #F0FDFA 100%);
  border: 1px solid var(--color-border);
  border-radius: 1rem;
  padding: 1.5rem;
  margin-bottom: 1rem;
}

.result-title {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

.result-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
}

.result-value.positive {
  color: var(--color-success);
}

.result-value.negative {
  color: var(--color-error);
}

/* 表格样式 */
.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

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

.data-table th {
  background-color: #F8FAFC;
  font-weight: 600;
  color: var(--color-text);
}

.data-table tr:last-child td {
  border-bottom: none;
}

.data-table tr:hover td {
  background-color: #F8FAFC;
}

.data-table .text-right {
  text-align: right;
}

.data-table .font-medium {
  font-weight: 500;
}

.data-table .total-row {
  background-color: var(--color-background);
  font-weight: 600;
}

/* 分隔线 */
.divider {
  height: 1px;
  background-color: var(--color-border);
  margin: 1.5rem 0;
}

/* 帮助文本 */
.help-text {
  font-size: 0.75rem;
  color: #64748B;
  margin-top: 0.25rem;
}

/* 错误状态 */
.input-error {
  border-color: var(--color-error) !important;
}

.error-message {
  color: var(--color-error);
  font-size: 0.75rem;
  margin-top: 0.25rem;
}

/* 加载状态 */
.loading {
  position: relative;
  pointer-events: none;
}

.loading::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 1.25rem;
  height: 1.25rem;
  margin: -0.625rem 0 0 -0.625rem;
  border: 2px solid white;
  border-top-color: transparent;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* 响应式设计 */
@media (max-width: 768px) {
  .tier-row {
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
  }
  
  .tier-row > div:nth-child(3) {
    grid-column: span 2;
  }
  
  .tier-row > button {
    grid-column: span 2;
    justify-self: end;
  }
  
  .card {
    padding: 1rem;
  }
  
  .result-value {
    font-size: 1.25rem;
  }
}

/* 打印样式 */
@media print {
  body {
    background-color: white;
  }
  
  .no-print {
    display: none !important;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #E2E8F0;
  }
}

/* 无障碍：减少动画 */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* 焦点可见性 */
.btn:focus-visible,
.input-field:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}