/* ========================================
   游戏灵敏度转换器 - 样式表
   ======================================== */

/* CSS 变量定义 */
:root {
    --primary: #3b82f6;
    --primary-dark: #2563eb;
    --secondary: #6366f1;
    --accent: #06b6d4;
    --success: #10b981;
    --error: #ef4444;
    --warning: #f59e0b;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-card: #ffffff;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-muted: #9ca3af;
    --border: #e5e7eb;
    --border-light: #f3f4f6;
    
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 40px rgba(0, 0, 0, 0.1);
    
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.5s ease;
}

/* 深色主题 */
[data-theme="dark"] {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border: #475569;
    --border-light: #334155;
}

/* 重置和基础样式 */
* { 
    margin: 0; 
    padding: 0; 
    box-sizing: border-box; 
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    background-image:
        radial-gradient(circle at 20% 80%, rgba(59, 130, 246, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(99, 102, 241, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(6, 182, 212, 0.03) 0%, transparent 50%);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    transition: background-color var(--transition-normal), color var(--transition-normal);
    opacity: 0;
    animation: fadeInPage 0.8s ease-out forwards;
}

/* ========================================
   动画关键帧
   ======================================== */

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

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9) translateY(20px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes bounceIn {
    0% { opacity: 0; transform: scale(0.3) translateY(50px); }
    50% { opacity: 1; transform: scale(1.05) translateY(-10px); }
    70% { transform: scale(0.95) translateY(5px); }
    100% { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes numberPulse {
    0% { transform: scale(0.8); opacity: 0; }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 0.95; transform: translateX(0); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes slideInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes shimmer {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    100% { transform: translateX(100%) translateY(100%) rotate(45deg); }
}

@keyframes spinGradient {
    0% { transform: rotate(0deg); border-top-color: var(--primary); border-right-color: var(--secondary); }
    50% { border-top-color: var(--secondary); border-right-color: var(--accent); }
    100% { transform: rotate(360deg); border-top-color: var(--primary); border-right-color: var(--secondary); }
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.02); }
}

@keyframes ripple {
    to { transform: scale(2); opacity: 0; }
}

/* ========================================
   布局组件
   ======================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    animation: slideInUp 0.6s ease-out 0.2s both;
}

/* 头部 */
.header {
    text-align: center;
    margin-bottom: 40px;
    padding: 40px 0 30px;
    animation: fadeInDown 0.8s ease-out 0.4s both;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.header .subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 30px;
}

/* 主卡片 */
.main-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
    padding: 40px;
    margin-bottom: 40px;
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
    animation: scaleIn 0.6s ease-out 0.6s both;
    transition: all var(--transition-normal);
}

.main-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.main-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary), transparent);
    opacity: 0.5;
}

/* ========================================
   语言切换器
   ======================================== */

.lang-switch {
    display: flex;
    gap: 4px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 6px;
    flex-wrap: wrap;
    max-width: 600px;
}

.lang-btn {
    padding: 6px 12px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-size: 12px;
    white-space: nowrap;
    min-width: 60px;
    position: relative;
    overflow: hidden;
}

.lang-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.lang-btn:hover::before {
    left: 100%;
}

.lang-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.lang-btn.active {
    background: var(--primary);
    color: white;
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
    transform: scale(1.05);
}

/* 主题切换按钮 */
.theme-btn {
    padding: 8px 12px;
    border: none;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-normal);
    font-size: 16px;
    position: relative;
    overflow: hidden;
}

.theme-btn:hover {
    background: var(--border);
    transform: rotate(180deg) scale(1.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.theme-btn:active {
    transform: rotate(180deg) scale(0.95);
}

/* ========================================
   步骤提示与快捷操作
   ======================================== */

.step-hints {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin: -8px 0 20px;
}

.popular-games-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-bottom: 24px;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
}

.quick-label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.9rem;
    white-space: nowrap;
}

.quick-games {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.quick-game-chip {
    padding: 8px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    color: var(--text-primary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.quick-game-chip:hover {
    border-color: var(--primary);
    background: rgba(59, 130, 246, 0.08);
    color: var(--primary);
}

.quick-game-chip:focus {
    outline: none;
    box-shadow: 0 0 0 2px var(--primary);
}

.quick-sep {
    color: var(--text-muted);
    font-size: 1rem;
    margin: 0 4px;
}

.form-row-with-swap {
    display: flex;
    align-items: flex-end;
    gap: 12px;
    margin-bottom: 25px;
    flex-wrap: wrap;
}

.form-group-game {
    flex: 1;
    min-width: 200px;
}

.swap-btn {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border: 2px solid var(--border);
    border-radius: var(--radius-md);
    background: var(--bg-secondary);
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 4px;
}

.swap-btn:hover {
    border-color: var(--primary);
    background: rgba(59, 130, 246, 0.1);
    color: var(--primary);
    transform: rotate(180deg);
}

.swap-btn:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.3);
}

.swap-icon {
    font-size: 1.5rem;
    line-height: 1;
}

.dpi-row {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.dpi-presets {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.dpi-preset {
    padding: 6px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.dpi-preset:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.dpi-preset.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

.copy-result-btn {
    margin-top: 20px;
    padding: 12px 24px;
    border: 2px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--radius-md);
    background: rgba(255, 255, 255, 0.15);
    color: white;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.copy-result-btn:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: white;
}

.copy-result-btn.copied {
    background: var(--success);
    border-color: var(--success);
}

/* ========================================
   表单组件
   ======================================== */

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 25px;
    margin-bottom: 35px;
}

.form-group {
    position: relative;
    animation: fadeInUp 0.6s ease-out both;
}

.form-group:nth-child(1) { animation-delay: 0.8s; }
.form-group:nth-child(2) { animation-delay: 0.9s; }
.form-group:nth-child(3) { animation-delay: 1.0s; }
.form-group:nth-child(4) { animation-delay: 1.1s; }
.form-group:nth-child(5) { animation-delay: 1.2s; }

.form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: var(--text-primary);
    font-size: 0.95rem;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 16px;
    transition: all var(--transition-normal);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-card);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1), 0 8px 25px rgba(59, 130, 246, 0.15);
    transform: translateY(-3px) scale(1.02);
}

.form-group input:hover,
.form-group select:hover {
    border-color: var(--primary);
    transform: translateY(-1px);
}

.form-group input::placeholder {
    color: var(--text-secondary);
}

/* 选择器包装 */
.select-wrapper {
    position: relative;
}

.game-search-input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm) var(--radius-sm) 0 0;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 14px;
    border-bottom: none;
}

.game-search-input:focus {
    outline: none;
    border-color: var(--primary);
    background: var(--bg-card);
}

.game-select {
    border-radius: 0 0 var(--radius-sm) var(--radius-sm);
    border-top: none;
}

/* ========================================
   实时结果区域
   ======================================== */

.live-result {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 20px;
    padding: 32px;
    margin: 32px 0;
    color: white;
    animation: bounceIn 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    box-shadow: 0 20px 40px rgba(59, 130, 246, 0.2);
    position: relative;
    overflow: hidden;
    transform-origin: center;
}

.live-result::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    animation: shimmer 3s infinite;
}

.live-result-content {
    text-align: center;
    position: relative;
    z-index: 1;
}

.result-game {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 12px;
    opacity: 0.9;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.result-sensitivity {
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 16px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    animation: numberPulse 0.6s ease-out;
}

.result-details {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
}

.detail-item {
    font-size: 1rem;
    opacity: 0.95;
    background: rgba(255, 255, 255, 0.1);
    padding: 8px 16px;
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
    transition: all var(--transition-fast);
    animation: slideInLeft 0.6s ease-out both;
}

.detail-item:nth-child(1) { animation-delay: 0.2s; }
.detail-item:nth-child(2) { animation-delay: 0.4s; }

.detail-item:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px) scale(1.05);
}

/* ========================================
   消息提示
   ======================================== */

.message {
    padding: 16px 20px;
    border-radius: var(--radius-md);
    margin: 15px 0;
    font-weight: 500;
    animation: slideInRight 0.5s ease-out;
    transition: all var(--transition-fast);
}

.message:hover {
    transform: translateX(5px);
}

.message.success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success);
    color: var(--success);
}

.message.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid var(--error);
    color: var(--error);
}

.message.warning {
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid var(--warning);
    color: var(--warning);
}

/* ========================================
   加载动画
   ======================================== */

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 20px;
    animation: pulse 2s infinite;
}

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid var(--border);
    border-top: 3px solid var(--primary);
    border-right: 3px solid var(--secondary);
    border-radius: 50%;
    animation: spinGradient 1.2s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

/* ========================================
   SEO内容（隐藏）
   ======================================== */

.seo-content {
    position: absolute;
    left: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* ========================================
   页脚
   ======================================== */

.footer {
    text-align: center;
    padding: 20px;
    margin-top: 40px;
    color: var(--text-secondary);
    font-size: 0.9rem;
    animation: fadeIn 1s ease-out 1.5s both;
}

/* ========================================
   响应式设计
   ======================================== */

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    .header-top {
        flex-direction: column;
        gap: 15px;
        align-items: center;
    }

    .lang-switch {
        justify-content: center;
        max-width: 100%;
    }

    .lang-btn {
        font-size: 11px;
        padding: 5px 8px;
        min-width: 50px;
    }

    .main-card {
        padding: 24px;
        border-radius: 20px;
    }

    .form-row-with-swap {
        flex-direction: column;
        align-items: stretch;
    }

    .swap-btn {
        align-self: center;
        margin-bottom: 0;
    }

    .popular-games-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .quick-sep {
        display: none;
    }

    .form-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .result-sensitivity {
        font-size: 2.5rem;
    }

    .result-details {
        gap: 16px;
        flex-direction: column;
        align-items: center;
    }

    .detail-item {
        font-size: 0.9rem;
    }
}

@media (max-width: 480px) {
    .main-card {
        padding: 20px;
        margin-bottom: 20px;
    }

    .live-result {
        padding: 24px;
        margin: 24px 0;
    }

    .result-sensitivity {
        font-size: 2rem;
    }

    .lang-switch {
        gap: 2px;
        padding: 4px;
    }

    .lang-btn {
        font-size: 10px;
        padding: 4px 6px;
        min-width: 45px;
    }
}

/* ========================================
   可访问性和性能优化
   ======================================== */

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

@media (max-width: 768px) {
    .live-result::before {
        animation: none;
    }

    .btn::before,
    .lang-btn::before {
        display: none;
    }
}

/* 高对比度模式支持 */
@media (prefers-contrast: high) {
    :root {
        --primary: #005fcc;
        --primary-dark: #004499;
    }
    
    .form-group input,
    .form-group select {
        border-width: 3px;
    }
}

/* 打印样式 */
@media print {
    .header-top,
    .theme-btn,
    .lang-switch {
        display: none;
    }
    
    .live-result {
        background: #f0f0f0 !important;
        color: #000 !important;
        box-shadow: none !important;
    }
}