/**
 * Inquiry Basket - 询盘篮前端样式
 * 设计风格：极简现代 + 高级感
 */

:root {
    --ib-black: #1a1a1a;
    --ib-dark: #2d2d2d;
    --ib-gray: #666;
    --ib-light: #f7f7f7;
    --ib-border: #e5e5e5;
    --ib-accent: #1a1a1a;
    --ib-success: #10b981;
    --ib-error: #ef4444;
    --ib-radius: 20px;
    --ib-radius-sm: 12px;
    --ib-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --ib-transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ========== 浮动按钮 - 移至左下角 ========== */
.ib-floating-btn {
    position: fixed;
    bottom: 30px;
    left: 30px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: var(--ib-black);
    color: #fff;
    border-radius: 50px;
    cursor: pointer;
    z-index: 9998;
    transition: var(--ib-transition);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.15);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

.ib-floating-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    background: var(--ib-dark);
}

.ib-floating-btn .ib-icon {
    font-size: 18px;
    line-height: 1;
}

.ib-floating-btn .ib-text {
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.3px;
    display: none;
}

.ib-floating-btn.has-items .ib-text {
    display: block;
}

.ib-floating-btn .ib-count {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 20px;
    height: 20px;
    background: #fff;
    color: var(--ib-black);
    font-size: 11px;
    font-weight: 600;
    border-radius: 10px;
    padding: 0 6px;
}

.ib-floating-btn:not(.has-items) .ib-count {
    display: none;
}

/* ========== 页面内按钮 ========== */
.ib-add-to-basket {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 28px;
    background: var(--ib-black);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.3px;
    cursor: pointer;
    transition: var(--ib-transition);
    position: relative;
}

.ib-add-to-basket:hover {
    background: var(--ib-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.ib-add-to-basket.added {
    background: var(--ib-success);
    pointer-events: none;
}

.ib-add-to-basket.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* ========== 弹窗 ========== */
.ib-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 99999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', sans-serif;
}

.ib-modal.active {
    opacity: 1;
    visibility: visible;
}

.ib-modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.ib-modal-content {
    position: relative;
    width: 90%;
    max-width: 520px;
    max-height: 85vh;
    background: #fff;
    border-radius: var(--ib-radius);
    box-shadow: var(--ib-shadow);
    display: flex;
    flex-direction: column;
    transform: scale(0.95) translateY(10px);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    overflow: hidden;
}

.ib-modal.active .ib-modal-content {
    transform: scale(1) translateY(0);
}

/* 弹窗头部 */
.ib-modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 28px 20px;
    border-bottom: 1px solid var(--ib-border);
}

.ib-modal-header h2 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: var(--ib-black);
    letter-spacing: -0.3px;
}

.ib-modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--ib-light);
    border: none;
    border-radius: 50%;
    color: var(--ib-gray);
    font-size: 18px;
    cursor: pointer;
    transition: var(--ib-transition);
}

.ib-modal-close:hover {
    background: var(--ib-border);
    color: var(--ib-black);
}

/* 弹窗主体 */
.ib-modal-body {
    flex: 1;
    padding: 20px 28px;
    overflow-y: auto;
    max-height: 360px;
}

.ib-modal-body.with-form {
    max-height: 200px;
}

/* 产品列表头部 */
.ib-items-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    color: var(--ib-gray);
    font-size: 13px;
}

/* 产品网格 */
.ib-items-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.ib-item {
    background: var(--ib-light);
    border-radius: var(--ib-radius-sm);
    overflow: hidden;
    transition: var(--ib-transition);
}

.ib-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.ib-item-image {
    position: relative;
    aspect-ratio: 1;
    overflow: hidden;
    background: #eee;
}

.ib-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.ib-item:hover .ib-item-image img {
    transform: scale(1.05);
}

.ib-remove-item {
    position: absolute;
    top: 8px;
    right: 8px;
    width: 26px;
    height: 26px;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    border: none;
    border-radius: 50%;
    color: #fff;
    font-size: 14px;
    line-height: 1;
    cursor: pointer;
    opacity: 0;
    transition: var(--ib-transition);
}

.ib-item:hover .ib-remove-item {
    opacity: 1;
}

.ib-remove-item:hover {
    background: var(--ib-error);
    transform: scale(1.1);
}

.ib-item-info {
    padding: 12px;
}

.ib-item-title {
    display: block;
    font-size: 13px;
    color: var(--ib-black);
    text-decoration: none;
    line-height: 1.4;
    font-weight: 500;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    line-clamp: 2;
    -webkit-box-orient: vertical;
}

.ib-item-title:hover {
    color: var(--ib-gray);
}

/* 空状态 */
.ib-empty-state {
    text-align: center;
    padding: 50px 20px;
}

.ib-empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.3;
}

.ib-empty-state p {
    margin: 0;
    color: var(--ib-gray);
    font-size: 15px;
}

.ib-empty-hint {
    font-size: 13px;
    color: #999;
    margin-top: 8px;
}

/* 表单区域 */
.ib-modal-form {
    padding: 20px 28px;
    background: var(--ib-light);
    border-top: 1px solid var(--ib-border);
}

.ib-modal-form h3 {
    margin: 0 0 16px;
    font-size: 14px;
    font-weight: 600;
    color: var(--ib-black);
}

.ib-form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.ib-form-group {
    margin-bottom: 12px;
}

.ib-form-group.full-width {
    grid-column: 1 / -1;
}

.ib-form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 12px;
    font-weight: 500;
    color: var(--ib-gray);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ib-form-group label .required {
    color: var(--ib-error);
}

.ib-form-group input,
.ib-form-group textarea {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--ib-border);
    border-radius: 10px;
    font-size: 14px;
    background: #fff;
    transition: var(--ib-transition);
    box-sizing: border-box;
}

.ib-form-group input:focus,
.ib-form-group textarea:focus {
    outline: none;
    border-color: var(--ib-black);
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
}

.ib-form-group input::placeholder,
.ib-form-group textarea::placeholder {
    color: #bbb;
}

.ib-form-group textarea {
    resize: vertical;
    min-height: 70px;
}

/* 底部按钮 */
.ib-modal-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 28px 24px;
    background: #fff;
}

.ib-btn {
    padding: 14px 28px;
    border: none;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--ib-transition);
    letter-spacing: 0.3px;
}

.ib-btn-clear {
    background: transparent;
    color: var(--ib-gray);
    padding: 14px 20px;
}

.ib-btn-clear:hover {
    color: var(--ib-black);
    background: var(--ib-light);
}

.ib-btn-primary {
    background: var(--ib-black);
    color: #fff;
}

.ib-btn-primary:hover {
    background: var(--ib-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.ib-btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Toast 提示 */
.ib-toast {
    position: fixed;
    bottom: 100px;
    left: 30px;
    padding: 14px 20px;
    background: var(--ib-black);
    color: #fff;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    z-index: 999999;
    opacity: 0;
    transform: translateY(20px);
    transition: var(--ib-transition);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    max-width: 280px;
}

.ib-toast.show {
    transform: translateY(0);
    opacity: 1;
}

.ib-toast.success {
    background: var(--ib-success);
}

.ib-toast.error {
    background: var(--ib-error);
}

/* 禁止滚动 */
body.ib-modal-open {
    overflow: hidden;
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .ib-floating-btn {
        bottom: 20px;
        left: 20px;
        padding: 12px 16px;
    }
    
    .ib-floating-btn .ib-text {
        display: none !important;
    }
    
    .ib-modal-content {
        width: 95%;
        max-height: 90vh;
        border-radius: 16px;
    }
    
    .ib-modal-header {
        padding: 20px;
    }
    
    .ib-modal-body {
        padding: 16px 20px;
    }
    
    .ib-modal-form {
        padding: 16px 20px;
    }
    
    .ib-form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .ib-modal-footer {
        padding: 16px 20px 20px;
    }
    
    .ib-btn {
        padding: 12px 20px;
        font-size: 13px;
    }
    
    .ib-toast {
        left: 20px;
        right: 20px;
        bottom: 90px;
        max-width: none;
    }
}

@media (max-width: 480px) {
    .ib-items-grid {
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }
    
    .ib-item-info {
        padding: 10px;
    }
    
    .ib-item-title {
        font-size: 12px;
    }
}