/* ============================================
   DailyCost - 自定义样式
   ============================================ */

/* CSS 变量 */
:root {
  --primary: #4F46E5;
  --primary-dark: #4338CA;
  --primary-light: #818CF8;
  --secondary: #10B981;
  --danger: #EF4444;
  --warning: #F59E0B;
  --bg: #F8FAFC;
  --surface: #FFFFFF;
  --surface-hover: #F1F5F9;
  --text: #0F172A;
  --text-secondary: #64748B;
  --border: #E2E8F0;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --radius: 12px;
  --radius-lg: 16px;
  --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0F172A;
    --surface: #1E293B;
    --surface-hover: #334155;
    --text: #F8FAFC;
    --text-secondary: #94A3B8;
    --border: #334155;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.3), 0 1px 2px -1px rgb(0 0 0 / 0.3);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.4);
  }
}

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

html {
  scroll-behavior: smooth;
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.5;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
}

/* 动画 */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

.animate-fade-in {
  animation: fadeIn 0.3s ease-out forwards;
}

.animate-slide-up {
  animation: slideUp 0.4s ease-out forwards;
}

.animate-scale-in {
  animation: scaleIn 0.2s ease-out forwards;
}

/* 错开动画 */
.stagger-1 { animation-delay: 50ms; }
.stagger-2 { animation-delay: 100ms; }
.stagger-3 { animation-delay: 150ms; }
.stagger-4 { animation-delay: 200ms; }
.stagger-5 { animation-delay: 250ms; }

/* 骨架屏 */
.skeleton {
  background: linear-gradient(90deg, var(--surface-hover) 25%, var(--border) 50%, var(--surface-hover) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 8px;
}

/* 滚动条 */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

/* 表单焦点 */
input:focus, select:focus, textarea:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgb(79 70 229 / 0.15);
  border-color: var(--primary) !important;
}

/* 按钮按压效果 */
.btn-press:active {
  transform: scale(0.97);
}

/* 玻璃拟态卡片 */
.glass {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

@media (prefers-color-scheme: dark) {
  .glass {
    background: rgba(30, 41, 59, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.05);
  }
}

/* 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;
  }
}

/* 模态框遮罩 */
.modal-overlay {
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

/* 图标按钮 */
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  transition: all var(--transition);
  cursor: pointer;
}

.icon-btn:hover {
  background: var(--surface-hover);
}

/* 标签 */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

/* 空状态 */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  text-align: center;
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  border-radius: 20px;
  background: var(--surface-hover);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  color: var(--text-secondary);
}

/* 卡片悬停 */
.card-hover {
  transition: all var(--transition);
}

.card-hover:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* 底部安全区域 */
.safe-bottom {
  padding-bottom: max(16px, env(safe-area-inset-bottom));
}

/* 导航激活态 */
.nav-active {
  color: var(--primary);
  background: rgb(79 70 229 / 0.1);
}

/* 数字字体 */
.font-mono {
  font-feature-settings: 'tnum';
  font-variant-numeric: tabular-nums;
}

/* 隐藏滚动条但保持滚动 */
.hide-scrollbar {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

.hide-scrollbar::-webkit-scrollbar {
  display: none;
}

/* 响应式工具 */
@media (max-width: 767px) {
  .desktop-only {
    display: none !important;
  }
}

@media (min-width: 768px) {
  .mobile-only {
    display: none !important;
  }
}