/* VanishingInput 文字消失动画输入框样式 */
.vanishing-input-container {
    position: relative;
    width: 100%;
    max-width: 400px;
    margin: 0 auto;
    --input-border-color: #e2e8f0;
    --input-focus-color: #45B746;
    --input-text-color: #4A4A4A;
    --input-background-color: #ffffff;
}

.vanishing-input-wrapper {
    position: relative;
    display: flex;
    align-items: center;
}

.vanishing-input {
    width: 100%;
    padding: 12px 16px;
    font-size: 16px;
    border: 2px solid var(--input-border-color);
    border-radius: 8px;
    background-color: var(--input-background-color);
    color: var(--input-text-color);
    transition: all 0.3s ease;
    outline: none;
    z-index: 2;
}

.vanishing-input:focus {
    border-color: var(--input-focus-color);
    box-shadow: 0 0 0 3px rgba(69, 183, 70, 0.1);
    transform: translateY(-1px);
}

.vanishing-input::placeholder {
    color: #a0aec0;
    transition: color 0.3s ease;
}

.vanishing-input:focus::placeholder {
    color: transparent;
}

/* 输入框标签 */
.vanishing-input-label {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 14px;
    color: #a0aec0;
    pointer-events: none;
    transition: all 0.3s ease;
    z-index: 1;
    background-color: var(--input-background-color);
    padding: 0 4px;
}

.vanishing-input:focus + .vanishing-input-label,
.vanishing-input:not(:placeholder-shown) + .vanishing-input-label {
    top: -8px;
    left: 12px;
    font-size: 12px;
    color: var(--input-focus-color);
}

/* 提交按钮 */
.vanishing-input-submit {
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    padding: 8px 16px;
    font-size: 14px;
    font-weight: 500;
    color: white;
    background: linear-gradient(to right, #45B746, #66CC67);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
    opacity: 0;
    visibility: hidden;
    z-index: 3;
}

.vanishing-input:focus + .vanishing-input-label + .vanishing-input-submit,
.vanishing-input:not(:placeholder-shown) + .vanishing-input-label + .vanishing-input-submit {
    opacity: 1;
    visibility: visible;
}

.vanishing-input-submit:hover {
    background: linear-gradient(to right, #66CC67, #45B746);
    transform: translateY(-50%) scale(1.05);
    box-shadow: 0 4px 12px rgba(69, 183, 70, 0.3);
}

.vanishing-input-submit:active {
    transform: translateY(-50%) scale(0.95);
}

/* Canvas 粒子效果容器 */
.vanishing-input-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 10;
}

/* 成功提示 */
.vanishing-input-success {
    position: absolute;
    top: -40px;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 16px;
    background-color: #45B746;
    color: white;
    border-radius: 6px;
    font-size: 14px;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 20;
}

.vanishing-input-success.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(-5px);
}

/* 错误提示 */
.vanishing-input-error {
    position: absolute;
    bottom: -25px;
    left: 0;
    font-size: 12px;
    color: #f56565;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.vanishing-input-error.show {
    opacity: 1;
}

/* 输入框状态 */
.vanishing-input.error {
    border-color: #f56565;
}

.vanishing-input.success {
    border-color: #45B746;
}

/* 加载状态 */
.vanishing-input.loading {
    opacity: 0.7;
    pointer-events: none;
}

.vanishing-input-submit.loading {
    opacity: 0.7;
    pointer-events: none;
}

.vanishing-input-submit.loading::after {
    content: '';
    width: 14px;
    height: 14px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
    margin-left: 8px;
    display: inline-block;
}

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

/* 响应式设计 */
@media (max-width: 768px) {
    .vanishing-input-container {
        max-width: 100%;
    }
    
    .vanishing-input {
        padding: 10px 12px;
        font-size: 14px;
    }
    
    .vanishing-input-submit {
        padding: 6px 12px;
        font-size: 12px;
    }
}

/* 暗色主题 */
.vanishing-input-container.dark {
    --input-border-color: #4a5568;
    --input-focus-color: #66CC67;
    --input-text-color: #e2e8f0;
    --input-background-color: #2d3748;
}

.vanishing-input-container.dark .vanishing-input::placeholder {
    color: #718096;
}

.vanishing-input-container.dark .vanishing-input-label {
    color: #718096;
}

/* 动画变体 */
.vanishing-input-container.pulse {
    animation: pulse 2s infinite;
}

.vanishing-input-container.float {
    animation: float 3s ease-in-out infinite;
}

/* 自定义输入框宽度 */
.vanishing-input-container.small {
    max-width: 200px;
}

.vanishing-input-container.medium {
    max-width: 300px;
}

.vanishing-input-container.large {
    max-width: 500px;
}

/* 聚焦时的光晕效果 */
.vanishing-input-container::after {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: linear-gradient(45deg, #45B746, #FFA0B4, #45B746);
    z-index: -1;
    border-radius: 10px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.vanishing-input-container:focus-within::after {
    opacity: 1;
    animation: rotate 3s linear infinite;
}

@keyframes rotate {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}