/**
 * 滑块验证码样式
 * 支持 6 种 CSS 背景样式
 */

/* 容器 */
.slider-captcha-container {
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
    user-select: none;
}

/* 背景区域 */
.slider-captcha-bg {
    width: 100%;
    height: 150px;
    border-radius: 8px;
    position: relative;
    overflow: hidden;
    background-color: #1a1a2e;
}

/* 缺口 */
.slider-captcha-puzzle {
    position: absolute;
    width: 50px;
    height: 50px;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 4px;
    box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.5);
    pointer-events: none;
}

/* 滑块轨道 */
.slider-captcha-track {
    width: 100%;
    height: 45px;
    background: #2d2d44;
    border-radius: 25px;
    margin-top: 12px;
    position: relative;
    display: flex;
    align-items: center;
    padding: 0 5px;
    box-sizing: border-box;
}

/* 滑块按钮 */
.slider-captcha-btn {
    width: 50px;
    height: 35px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: grab;
    box-shadow: 0 2px 10px rgba(102, 126, 234, 0.4);
    position: absolute;
    left: 5px;
    transition: box-shadow 0.2s;
    z-index: 10;
}

.slider-captcha-btn:hover {
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.6);
}

.slider-captcha-btn:active {
    cursor: grabbing;
}

.slider-captcha-btn svg {
    width: 20px;
    height: 20px;
    fill: white;
}

/* 提示文字 */
.slider-captcha-text {
    position: absolute;
    width: 100%;
    text-align: center;
    color: #666;
    font-size: 13px;
    pointer-events: none;
    left: 0;
}

/* 滑块拖动块（跟随滑块移动的拼图块） */
.slider-captcha-piece {
    position: absolute;
    width: 50px;
    height: 50px;
    border-radius: 4px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.3);
    pointer-events: none;
    z-index: 5;
}


/* 状态样式 */
.slider-captcha-success .slider-captcha-track {
    background: #2d4a3e;
}

.slider-captcha-success .slider-captcha-btn {
    background: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    box-shadow: 0 2px 10px rgba(67, 233, 123, 0.4);
}

.slider-captcha-success .slider-captcha-text {
    color: #43e97b;
}

.slider-captcha-fail .slider-captcha-track {
    background: #4a2d2d;
    animation: shake 0.5s ease-in-out;
}

.slider-captcha-fail .slider-captcha-btn {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a5a 100%);
    box-shadow: 0 2px 10px rgba(255, 107, 107, 0.4);
}

.slider-captcha-fail .slider-captcha-text {
    color: #ff6b6b;
}

.slider-captcha-loading .slider-captcha-btn {
    opacity: 0.7;
    cursor: not-allowed;
}

/* 抖动动画 */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

/* 成功图标 */
.slider-captcha-success-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 150px;
    background: linear-gradient(135deg, #2d4a3e 0%, #1a3a2e 100%);
    border-radius: 8px;
    color: #43e97b;
    font-size: 48px;
}

/* 刷新按钮 */
.slider-captcha-refresh {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 28px;
    height: 28px;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s;
    z-index: 10;
}

.slider-captcha-refresh:hover {
    background: rgba(0, 0, 0, 0.7);
}

.slider-captcha-refresh svg {
    width: 16px;
    height: 16px;
    fill: white;
}

/* 加载遮罩 */
.slider-captcha-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    z-index: 20;
}

.slider-captcha-spinner {
    width: 30px;
    height: 30px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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


/* ========== 6 种背景样式 ========== */

/* 样式1: 多层渐变叠加 */
.slider-bg-gradient-overlay {
    background-blend-mode: overlay, multiply, normal;
}

/* 样式2: 条纹渐变 */
.slider-bg-stripe-gradient {
    background-blend-mode: overlay;
}

/* 样式3: 圆形渐变 */
.slider-bg-radial-gradient {
    /* 动态生成 */
}

/* 样式4: 网格图案 */
.slider-bg-grid-pattern {
    /* 动态生成 */
}

/* 样式5: 波浪渐变 */
.slider-bg-wave-gradient {
    /* 动态生成 */
}

/* 样式6: 马赛克效果 */
.slider-bg-mosaic-effect {
    background-blend-mode: multiply;
}

/* ========== 响应式适配 ========== */

@media (max-width: 480px) {
    .slider-captcha-container {
        max-width: 100%;
    }
    
    .slider-captcha-bg {
        height: 120px;
    }
    
    .slider-captcha-puzzle {
        width: 40px;
        height: 40px;
    }
    
    .slider-captcha-piece {
        width: 40px;
        height: 40px;
    }
    
    .slider-captcha-track {
        height: 40px;
    }
    
    .slider-captcha-btn {
        width: 45px;
        height: 30px;
    }
    
    .slider-captcha-text {
        font-size: 12px;
    }
}

/* 暗色主题适配（默认已是暗色） */
.slider-captcha-container.light-theme .slider-captcha-track {
    background: #e0e0e0;
}

.slider-captcha-container.light-theme .slider-captcha-text {
    color: #999;
}