/**
 * 按钮组件样式
 * 维海科技信息化管理平台
 * 版本: 3.0
 */

/* ============================================
   按钮组件
   ============================================ */
button {
    text-align: center;
}

.btn {
    padding: 10px 18px;
    border-radius: 0;
    font-size: var(--font-size-base);
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: var(--spacing-sm);
    position: relative;
    overflow: hidden;
}

.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 var(--transition-slow);
}

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

/* 按钮变体 */
/* 使用 !important 确保自定义样式不被 Bootstrap 覆盖 */
.btn-primary {
    background: var(--vh-accent) !important;
    border-color: var(--vh-accent) !important;
    color: #fff !important;
    box-shadow: none !important;
}

.btn-primary:hover {
    background: var(--vh-accent-dark) !important;
    border-color: var(--vh-accent-dark) !important;
    transform: translateY(-1px);
    box-shadow: none !important;
}

.btn-outline-primary {
    color: var(--vh-primary) !important;
    border: 1px solid var(--vh-primary) !important;
    background: transparent !important;
}

.btn-outline-primary:hover {
    background: var(--vh-primary) !important;
    color: #fff !important;
    border-color: var(--vh-primary) !important;
}

.btn-secondary {
    background: var(--vh-bg) !important;
    color: var(--vh-text) !important;
    border: 1px solid var(--vh-border) !important;
}

.btn-secondary:hover {
    background: var(--vh-border) !important;
    border-color: var(--vh-primary-muted) !important;
}

.btn-success {
    background: var(--vh-success) !important;
    border-color: var(--vh-success) !important;
    color: #fff !important;
}

.btn-success:hover {
    background: #15803d !important;
    border-color: #15803d !important;
}

.btn-warning {
    background: var(--vh-warning) !important;
    border-color: var(--vh-warning) !important;
    color: #fff !important;
}

.btn-warning:hover {
    background: #b45309 !important;
    border-color: #b45309 !important;
}

.btn-danger {
    background: var(--vh-error) !important;
    border-color: var(--vh-error) !important;
    color: #fff !important;
}

.btn-danger:hover {
    background: #dc2626 !important;
    border-color: #dc2626 !important;
}

/* 按钮尺寸 */
.btn-sm {
    padding: 6px 12px;
    font-size: var(--font-size-sm);
}

.btn-lg {
    padding: 12px 24px;
    font-size: var(--font-size-md);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

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

/* 响应式调整 */
@media (max-width: 576px) {
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .btn-lg {
        padding: 10px 20px;
        font-size: var(--font-size-base);
    }
    
    .btn {
        padding: 8px 14px;
        font-size: var(--font-size-sm);
    }
}