/* ============================================
   Toast 通知系统
   ============================================ */

.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 400px;
    pointer-events: none;
}

.toast-container .toast {
    pointer-events: auto;
}

.toast {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 16px 20px;
    border-radius: 10px;
    background: var(--bg-card);
    box-shadow: var(--shadow-hover);
    animation: toastSlideIn 0.3s ease;
    border-left: 4px solid;
    position: relative;
}

.toast.success {
    border-left-color: var(--success);
}

.toast.error {
    border-left-color: var(--danger);
}

.toast.warning {
    border-left-color: var(--warning);
}

.toast.info {
    border-left-color: var(--primary);
}

.toast-icon {
    font-size: 22px;
    flex-shrink: 0;
    margin-top: 2px;
}

.toast-content {
    flex: 1;
    min-width: 0;
}

.toast-title {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.toast-message {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
    word-break: break-word;
}

.toast-close {
    background: none;
    border: none;
    font-size: 20px;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.2s;
    margin-left: 4px;
    flex-shrink: 0;
}

.toast-close:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* 退出动画 */
.toast-exit {
    animation: toastSlideOut 0.3s ease forwards;
}

@keyframes toastSlideIn {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes toastSlideOut {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(100%);
    }
}

/* 进度条 */
.toast-progress {
    position: absolute;
    bottom: 0;
    left: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent, currentColor);
    opacity: 0.3;
    border-radius: 0 0 0 10px;
    animation: toastProgress 3s linear forwards;
}

.toast.success .toast-progress {
    color: var(--success);
}
.toast.error .toast-progress {
    color: var(--danger);
}
.toast.warning .toast-progress {
    color: var(--warning);
}
.toast.info .toast-progress {
    color: var(--primary);
}

@keyframes toastProgress {
    from {
        width: 100%;
    }
    to {
        width: 0%;
    }
}

/* 移动端适配 */
@media (max-width: 768px) {
    .toast-container {
        left: 12px;
        right: 12px;
        top: 12px;
        max-width: none;
    }

    .toast {
        padding: 14px 16px;
    }

    .toast-icon {
        font-size: 20px;
    }

    .toast-title {
        font-size: 13px;
    }

    .toast-message {
        font-size: 12px;
    }
}

/* 移动端从底部滑入 */
@media (max-width: 480px) {
    .toast-container {
        top: auto;
        bottom: 12px;
        flex-direction: column-reverse;
    }

    .toast {
        animation: toastSlideUp 0.3s ease;
    }

    .toast-exit {
        animation: toastSlideDown 0.3s ease forwards;
    }

    @keyframes toastSlideUp {
        from {
            opacity: 0;
            transform: translateY(100%);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    @keyframes toastSlideDown {
        from {
            opacity: 1;
            transform: translateY(0);
        }
        to {
            opacity: 0;
            transform: translateY(100%);
        }
    }
}