/* ==========================================================================
   双电机混动摩托车 3D 仿真 - 独立精简本地样式库
   ========================================================================== */

/* 本地字体导入 (与原生现代系统字体无缝层叠退避) */
@font-face {
  font-family: 'Inter';
  font-style: normal;
  font-weight: 300 700;
  font-display: swap;
  src: local('Inter'), local('Inter Regular'), url('fonts/inter.woff2') format('woff2');
}

@font-face {
  font-family: 'JetBrains Mono';
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: local('JetBrains Mono'), local('JetBrainsMono'), local('Cascadia Code'), url('fonts/jetbrains-mono.woff2') format('woff2');
}

/* 全局基底重置与排版规范 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background-color: #020617; /* slate-950 */
  color: #f1f5f9; /* slate-100 */
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  color: inherit;
}

/* 等宽数字与遥测字体 */
.font-mono {
  font-family: 'JetBrains Mono', "Cascadia Code", "SF Mono", Consolas, Menlo, Monaco, monospace;
}

/* 高级毛玻璃与卡片质感 */
.glass-panel {
  background: rgba(15, 23, 42, 0.82);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.6);
}

.glass-card {
  background: rgba(30, 41, 59, 0.58);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

/* 布局与定位工具类 */
.relative { position: relative; }
.absolute { position: absolute; }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.top-4 { top: 1rem; }
.top-1\/2 { top: 50%; }
.left-1\/2 { left: 50%; }
.left-3 { left: 0.75rem; }
.left-4 { left: 1rem; }
.right-3 { right: 0.75rem; }
.right-4 { right: 1rem; }
.bottom-3 { bottom: 0.75rem; }

.z-0 { z-index: 0; }
.z-10 { z-index: 10; }
.z-20 { z-index: 20; }
.z-50 { z-index: 50; }

.w-screen { width: 100vw; }
.h-screen { height: 100vh; }
.w-full { width: 100%; }
.h-full { height: 100%; }
.max-w-4xl { max-width: 56rem; }
.w-2 { width: 0.5rem; }
.h-2 { height: 0.5rem; }
.w-3 { width: 0.75rem; }
.h-3 { height: 0.75rem; }
.h-4 { height: 1rem; }
.w-\[1px\] { width: 1px; }
.shrink-0 { flex-shrink: 0; }
.overflow-hidden { overflow: hidden; }

/* 边距与内补 */
.mx-auto { margin-left: auto; margin-right: auto; }
.mx-1 { margin-left: 0.25rem; margin-right: 0.25rem; }
.mr-2 { margin-right: 0.5rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-0\.5 { margin-bottom: 0.125rem; }

.p-3 { padding: 0.75rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.px-6 { padding-left: 1.5rem; padding-right: 1.5rem; }
.py-0\.5 { padding-top: 0.125rem; padding-bottom: 0.125rem; }
.py-1\.5 { padding-top: 0.375rem; padding-bottom: 0.375rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-2\.5 { padding-top: 0.625rem; padding-bottom: 0.625rem; }
.py-4 { padding-top: 1rem; padding-bottom: 1rem; }

/* 弹性盒与网格 */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-baseline { align-items: baseline; }
.justify-between { justify-content: space-between; }

.gap-1 { gap: 0.25rem; }
.gap-1\.5 { gap: 0.375rem; }
.gap-2 { gap: 0.5rem; }
.gap-2\.5 { gap: 0.625rem; }
.gap-3 { gap: 0.75rem; }

.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

/* 圆角与边框 */
.rounded-md { border-radius: 0.375rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-full { border-radius: 9999px; }

.border { border-width: 1px; border-style: solid; }
.border-slate-700\/50 { border-color: rgba(51, 65, 85, 0.5); }
.border-slate-700\/40 { border-color: rgba(51, 65, 85, 0.4); }
.border-slate-600\/50 { border-color: rgba(71, 85, 105, 0.5); }
.border-sky-500\/30 { border-color: rgba(14, 165, 233, 0.3); }
.border-sky-500\/40 { border-color: rgba(14, 165, 233, 0.4); }
.border-amber-500\/30 { border-color: rgba(245, 158, 11, 0.3); }

/* 文字样式 */
.text-\[10px\] { font-size: 10px; line-height: 14px; }
.text-\[11px\] { font-size: 11px; line-height: 16px; }
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-center { text-align: center; }

.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.tracking-wide { letter-spacing: 0.025em; }

/* 调色板 - 背景色 */
.bg-slate-950 { background-color: #020617; }
.bg-slate-900\/50 { background-color: rgba(15, 23, 42, 0.5); }
.bg-slate-800\/80 { background-color: rgba(30, 41, 59, 0.8); }
.bg-slate-700 { background-color: #334155; }
.bg-sky-500\/20 { background-color: rgba(14, 165, 233, 0.2); }
.bg-sky-600\/30 { background-color: rgba(2, 132, 199, 0.3); }
.bg-amber-500\/20 { background-color: rgba(245, 158, 11, 0.2); }
.bg-amber-500 { background-color: #f59e0b; }
.bg-emerald-400 { background-color: #34d399; }
.bg-rose-500 { background-color: #f43f5e; }
.bg-amber-400 { background-color: #fbbf24; }
.bg-sky-400 { background-color: #38bdf8; }
.bg-indigo-400 { background-color: #818cf8; }

.hover\:bg-sky-600\/40:hover { background-color: rgba(2, 132, 199, 0.4); }
.hover\:bg-amber-500\/30:hover { background-color: rgba(245, 158, 11, 0.3); }

/* 调色板 - 文本色 */
.text-slate-100 { color: #f1f5f9; }
.text-slate-200 { color: #e2e8f0; }
.text-slate-300 { color: #cbd5e1; }
.text-slate-400 { color: #94a3b8; }
.text-slate-950 { color: #020617; }
.text-sky-300 { color: #7dd3fc; }
.text-sky-400 { color: #38bdf8; }
.text-indigo-400 { color: #818cf8; }
.text-rose-400 { color: #fb7185; }
.text-amber-300 { color: #fcd34d; }
.text-amber-400 { color: #fbbf24; }

/* 阴影与特效 */
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -4px rgba(0, 0, 0, 0.3); }
.shadow-xl { box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.4), 0 8px 10px -6px rgba(0, 0, 0, 0.4); }
.shadow-2xl { box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6); }

.opacity-0 { opacity: 0; }
.pointer-events-none { pointer-events: none; }
.pointer-events-auto { pointer-events: auto; }
.transform { transform: translateY(0); }
.-translate-x-1\/2 { transform: translateX(-50%); }
.-translate-y-full { transform: translateY(-100%); }
.-translate-x-1\/2.-translate-y-full { transform: translate(-50%, -100%); }
.-translate-x-1\/2.-translate-y-1\/2 { transform: translate(-50%, -50%); }

.transition {
  transition-property: color, background-color, border-color, opacity, box-shadow, transform;
  transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
  transition-duration: 150ms;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* 响应式断点规则 */
@media (min-width: 640px) {
  .sm\:bottom-4 { bottom: 1rem; }
  .sm\:left-4 { left: 1rem; }
  .sm\:right-4 { right: 1rem; }
  .sm\:p-4 { padding: 1rem; }
  .sm\:gap-1\.5 { gap: 0.375rem; }
  .sm\:gap-3\.5 { gap: 0.875rem; }
  .sm\:rounded-3xl { border-radius: 1.5rem; }
  .sm\:text-sm { font-size: 0.875rem; line-height: 1.25rem; }
}

@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .md\:gap-4 { gap: 1rem; }
  .md\:text-base { font-size: 1rem; line-height: 1.5rem; }
}

/* 定制控件与提示条 */
input[type=range] {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  background: transparent;
}

input[type=range]:focus {
  outline: none;
}

input[type=range]::-webkit-slider-runnable-track {
  width: 100%;
  height: 6px;
  cursor: pointer;
  background: #334155;
  border-radius: 9999px;
}

input[type=range]::-webkit-slider-thumb {
  height: 18px;
  width: 18px;
  border-radius: 50%;
  background: #38bdf8;
  cursor: pointer;
  -webkit-appearance: none;
  margin-top: -6px;
  box-shadow: 0 0 10px rgba(56, 189, 248, 0.5);
  transition: transform 0.1s ease, background 0.2s ease;
}

input[type=range]::-webkit-slider-thumb:hover {
  transform: scale(1.18);
  background: #7dd3fc;
}

#tooltip {
  pointer-events: none;
  transition: opacity 0.15s ease-out;
}