* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* 日式極簡色彩系統 - 溫暖中性色調 */
    --color-bg: #faf9f6;
    --color-surface: #ffffff;
    --color-stone-light: #f5f3f0;
    --color-stone: #e8e5e0;
    --color-stone-dark: #d4d0c8;
    --color-beige: #f0ede6;
    --color-text: #2c2c2c;
    --color-text-light: #6b6b6b;
    --color-text-lighter: #9a9a9a;
    --color-accent: #d4a574;
    --color-accent-hover: #c49564;
    --color-border: rgba(212, 210, 200, 0.3);
    --shadow-subtle: 0 1px 3px rgba(0, 0, 0, 0.04);
    --shadow-soft: 0 2px 8px rgba(0, 0, 0, 0.06);
    --transition-gentle: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', 'Noto Sans JP', 'Yu Gothic', 'Meiryo', sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    min-height: 100vh;
    padding: 0;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 40px 24px;
}

header {
    background: var(--color-surface);
    padding: 48px 32px;
    margin-bottom: 48px;
    border-bottom: 1px solid var(--color-border);
    text-align: center;
}

h1 {
    color: var(--color-text);
    margin-bottom: 12px;
    font-weight: 400;
    font-size: 28px;
    letter-spacing: -0.02em;
}

header p {
    color: var(--color-text-light);
    font-size: 14px;
    font-weight: 300;
    margin-bottom: 16px;
}

.admin-link {
    display: inline-block;
    margin-top: 16px;
    padding: 10px 20px;
    background: transparent;
    color: var(--color-text-light);
    text-decoration: none;
    border: 1px solid var(--color-border);
    font-size: 13px;
    font-weight: 400;
    transition: var(--transition-gentle);
    letter-spacing: 0.02em;
}

.admin-link:hover {
    color: var(--color-text);
    border-color: var(--color-stone-dark);
    background: var(--color-stone-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 48px;
}

.product-card {
    background: var(--color-surface);
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: var(--transition-gentle);
    display: flex;
    flex-direction: column;
    opacity: 0;
    animation: fadeInUp 0.5s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.product-card:hover {
    border-color: var(--color-stone-dark);
    box-shadow: var(--shadow-soft);
    transform: translateY(-2px);
}

.product-image {
    width: 100%;
    height: 180px;
    background: var(--color-stone-light);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-lighter);
    font-size: 13px;
    font-weight: 300;
    transition: var(--transition-gentle);
    overflow: hidden;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
    image-rendering: -webkit-optimize-contrast;
    image-rendering: crisp-edges;
    image-rendering: auto;
    -webkit-backface-visibility: hidden;
    backface-visibility: hidden;
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
}

.product-card:hover .product-image {
    opacity: 0.92;
}

.product-info {
    padding: 16px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-name {
    font-size: 15px;
    font-weight: 400;
    color: var(--color-text);
    margin-bottom: 6px;
    line-height: 1.4;
    letter-spacing: -0.01em;
}

.product-description {
    color: var(--color-text-light);
    font-size: 12px;
    margin-bottom: 10px;
    min-height: 32px;
    line-height: 1.5;
    font-weight: 300;
}

.product-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 11px;
    color: var(--color-text-lighter);
    font-weight: 300;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.product-price {
    font-size: 18px;
    font-weight: 400;
    color: var(--color-text);
    margin-bottom: 12px;
    letter-spacing: -0.02em;
}

.quantity-control {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}

.quantity-btn {
    width: 32px;
    height: 32px;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    cursor: pointer;
    font-size: 16px;
    color: var(--color-text);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-gentle);
    font-weight: 300;
}

.quantity-btn:hover {
    background: var(--color-stone-light);
    border-color: var(--color-stone-dark);
}

.quantity-btn:active {
    transform: scale(0.92);
    background: var(--color-stone);
}

.quantity-input {
    width: 64px;
    padding: 8px;
    text-align: center;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: 14px;
    font-weight: 400;
    transition: var(--transition-gentle);
}

.quantity-input:focus {
    outline: none;
    border-color: var(--color-accent);
}

.add-to-cart {
    width: 100%;
    padding: 10px;
    background: var(--color-accent);
    color: var(--color-surface);
    border: none;
    cursor: pointer;
    font-size: 13px;
    font-weight: 400;
    transition: var(--transition-gentle);
    letter-spacing: 0.02em;
    margin-top: auto;
    position: relative;
    overflow: hidden;
}

.add-to-cart::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.4s, height 0.4s;
}

.add-to-cart:active::before {
    width: 300px;
    height: 300px;
}

.add-to-cart:hover {
    background: var(--color-accent-hover);
    transform: translateY(-1px);
}

.add-to-cart:active {
    transform: translateY(0) scale(0.98);
}

.add-to-cart:disabled {
    background: var(--color-stone);
    color: var(--color-text-lighter);
    cursor: not-allowed;
    transform: none;
}

/* 浮動購物車 */
.floating-cart {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 999;
    transition: var(--transition-gentle);
    display: none; /* 默認隱藏，在移動設備上顯示 */
}

.floating-cart-button {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--color-accent);
    color: var(--color-surface);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-gentle);
    position: relative;
}

.floating-cart-button:hover {
    background: var(--color-accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(212, 165, 116, 0.3);
}

.cart-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--color-text);
    color: var(--color-surface);
    border-radius: 12px;
    min-width: 24px;
    height: 24px;
    padding: 0 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 500;
    animation: pulse 0.3s ease-out;
}

@keyframes pulse {
    0% { transform: scale(0.8); opacity: 0; }
    50% { transform: scale(1.15); }
    100% { transform: scale(1); opacity: 1; }
}

@keyframes cartBounce {
    0%, 100% { transform: scale(1); }
    25% { transform: scale(1.1) rotate(-5deg); }
    75% { transform: scale(1.1) rotate(5deg); }
}

.floating-cart-button:active {
    animation: cartBounce 0.3s ease;
}

.cart-section {
    background: var(--color-surface);
    padding: 32px;
    border: 1px solid var(--color-border);
    position: sticky;
    top: 32px;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
    transition: var(--transition-gentle);
}

.cart-section.hidden {
    display: none;
}

.cart-title {
    font-size: 18px;
    margin-bottom: 24px;
    color: var(--color-text);
    font-weight: 400;
    letter-spacing: -0.01em;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}

.cart-items {
    margin-bottom: 24px;
}

.cart-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 16px 0;
    border-bottom: 1px solid var(--color-border);
    transition: var(--transition-gentle);
}

.cart-item:last-child {
    border-bottom: none;
}

.cart-item-info {
    flex: 1;
    padding-right: 16px;
}

.cart-item-name {
    font-weight: 400;
    margin-bottom: 6px;
    font-size: 14px;
    color: var(--color-text);
    line-height: 1.5;
}

.cart-item-details {
    font-size: 12px;
    color: var(--color-text-light);
    font-weight: 300;
}

.cart-item-price {
    font-weight: 400;
    color: var(--color-text);
    font-size: 15px;
    white-space: nowrap;
}

.cart-total {
    display: flex;
    justify-content: space-between;
    font-size: 18px;
    font-weight: 400;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
    margin-bottom: 24px;
    color: var(--color-text);
    letter-spacing: -0.01em;
}

.checkout-btn {
    width: 100%;
    padding: 16px;
    background: var(--color-accent);
    color: var(--color-surface);
    border: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 400;
    transition: var(--transition-gentle);
    letter-spacing: 0.02em;
    margin-bottom: 12px;
}

.checkout-btn:hover:not(:disabled) {
    background: var(--color-accent-hover);
    transform: translateY(-1px);
}

.checkout-btn:active:not(:disabled) {
    transform: translateY(0);
}

.checkout-btn:disabled {
    background: var(--color-stone);
    color: var(--color-text-lighter);
    cursor: not-allowed;
    transform: none;
}

.empty-cart {
    text-align: center;
    color: var(--color-text-lighter);
    padding: 48px 0;
    font-size: 14px;
    font-weight: 300;
}

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 2px;
    font-size: 10px;
    font-weight: 400;
    margin-left: 8px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-season {
    background: var(--color-stone-light);
    color: var(--color-text-light);
    border: 1px solid var(--color-border);
}


.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(44, 44, 44, 0.4);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.modal.active {
    display: flex;
    opacity: 1;
}

.modal-content {
    background: var(--color-surface);
    padding: 40px;
    max-width: 560px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    border: 1px solid var(--color-border);
    transform: scale(0.96);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--color-border);
}

.modal-header h2 {
    color: var(--color-text);
    font-size: 20px;
    font-weight: 400;
    letter-spacing: -0.01em;
}

.close-btn {
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--color-text-lighter);
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-gentle);
    border-radius: 4px;
}

.close-btn:hover {
    color: var(--color-text);
    background: var(--color-stone-light);
}

.form-group {
    margin-bottom: 24px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 400;
    color: var(--color-text);
    font-size: 13px;
    letter-spacing: 0.02em;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: 14px;
    font-family: inherit;
    font-weight: 300;
    transition: var(--transition-gentle);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-accent);
    background: var(--color-stone-light);
}

.form-group small {
    color: var(--color-text-light);
    font-size: 11px;
    font-weight: 300;
    margin-top: 6px;
    display: block;
}

.form-actions {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 20px;
}

.order-summary {
    background: var(--color-stone-light);
    padding: 24px;
    margin-bottom: 24px;
    border: 1px solid var(--color-border);
}

.order-summary h3 {
    font-size: 16px;
    font-weight: 400;
    color: var(--color-text);
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.order-summary-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 12px;
    font-size: 13px;
    color: var(--color-text);
    font-weight: 300;
}

.order-summary-total {
    font-weight: 400;
    font-size: 18px;
    color: var(--color-text);
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
    letter-spacing: -0.01em;
}

.email-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.btn {
    padding: 12px 24px;
    border: 1px solid var(--color-border);
    cursor: pointer;
    font-size: 14px;
    font-weight: 400;
    transition: var(--transition-gentle);
    text-decoration: none;
    text-align: center;
    display: inline-block;
    letter-spacing: 0.02em;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-surface);
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-stone-light);
    border-color: var(--color-stone-dark);
}

.success-message {
    background: var(--color-stone-light);
    color: var(--color-text);
    padding: 16px;
    margin-bottom: 24px;
    text-align: center;
    border: 1px solid var(--color-border);
    font-size: 13px;
    font-weight: 300;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.quick-tabs {
    background: var(--color-surface);
    padding: 20px 24px;
    margin-bottom: 32px;
    border: 1px solid var(--color-border);
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.quick-tabs-label {
    font-weight: 400;
    color: var(--color-text);
    margin-right: 16px;
    font-size: 13px;
    letter-spacing: 0.02em;
}

.quick-tab {
    padding: 8px 16px;
    background: transparent;
    border: 1px solid var(--color-border);
    cursor: pointer;
    font-size: 13px;
    transition: var(--transition-gentle);
    color: var(--color-text);
    font-weight: 300;
    letter-spacing: 0.01em;
}

.quick-tab:hover {
    background: var(--color-stone-light);
    border-color: var(--color-stone-dark);
}

.quick-tab.active {
    background: var(--color-accent);
    color: var(--color-surface);
    border-color: var(--color-accent);
    font-weight: 400;
}

.filter-sidebar {
    background: var(--color-surface);
    padding: 24px;
    border: 1px solid var(--color-border);
    margin-bottom: 32px;
}

.filter-section {
    margin-bottom: 32px;
}

.filter-section:last-child {
    margin-bottom: 0;
}

.filter-section-title {
    font-weight: 400;
    color: var(--color-text);
    margin-bottom: 16px;
    font-size: 14px;
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.filter-option {
    display: flex;
    align-items: center;
    margin-bottom: 12px;
}

.filter-option input[type="checkbox"] {
    margin-right: 10px;
    cursor: pointer;
    width: 16px;
    height: 16px;
    accent-color: var(--color-accent);
}

.filter-option label {
    cursor: pointer;
    font-size: 13px;
    color: var(--color-text);
    flex: 1;
    font-weight: 300;
    transition: var(--transition-gentle);
}

.filter-option:hover label {
    color: var(--color-text);
}

.filter-option-count {
    color: var(--color-text-lighter);
    font-size: 11px;
    margin-left: auto;
    font-weight: 300;
}

.clear-filters {
    width: 100%;
    padding: 12px;
    background: transparent;
    border: 1px solid var(--color-border);
    cursor: pointer;
    font-size: 13px;
    margin-top: 24px;
    transition: var(--transition-gentle);
    color: var(--color-text);
    font-weight: 300;
    letter-spacing: 0.02em;
}

.clear-filters:hover {
    background: var(--color-stone-light);
    border-color: var(--color-stone-dark);
}

.products-container {
    display: flex;
    gap: 20px;
}

.products-main {
    flex: 1;
}

/* 響應式設計 */
@media (min-width: 768px) {
    .main-content {
        display: grid;
        grid-template-columns: 1fr 380px;
        gap: 32px;
    }

    .products-container {
        display: grid;
        grid-template-columns: 260px 1fr;
        gap: 32px;
    }
    
    .floating-cart {
        display: none;
    }
}

@media (max-width: 1024px) {
    .products-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 18px;
    }
}

@media (max-width: 767px) {
    .container {
        padding: 24px 16px;
    }
    
    header {
        padding: 32px 24px;
        margin-bottom: 32px;
    }
    
    h1 {
        font-size: 24px;
    }
    
    .filter-sidebar {
        order: 2;
        margin-bottom: 24px;
    }

    .products-main {
        order: 1;
    }

    .products-container {
        flex-direction: column;
    }

    .products-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .cart-section {
        display: none;
    }
    
        .cart-section.mobile-open {
        display: block;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        top: auto;
        max-height: 80vh;
        border: none;
        border-top: 1px solid var(--color-border);
        z-index: 1001;
        box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.08);
        animation: slideUp 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    @keyframes slideUp {
        from {
            transform: translateY(100%);
            opacity: 0;
        }
        to {
            transform: translateY(0);
            opacity: 1;
        }
    }
    
    .floating-cart {
        bottom: 24px;
        right: 24px;
    }
    
    .floating-cart-button {
        width: 56px;
        height: 56px;
        font-size: 18px;
    }
    
    .quick-tabs {
        padding: 16px 20px;
        margin-bottom: 24px;
    }
    
    .modal-content {
        padding: 32px 24px;
    }
}

/* 自定義對話框樣式 */
.dialog-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(44, 44, 44, 0.5);
    backdrop-filter: blur(4px);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.25s ease;
}

.dialog-modal.active {
    display: flex;
    opacity: 1;
}

.dialog-content {
    background: var(--color-surface);
    border-radius: 8px;
    max-width: 480px;
    width: 90%;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    transform: scale(0.95);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.dialog-modal.active .dialog-content {
    transform: scale(1);
}

.dialog-header {
    padding: 24px 24px 16px 24px;
    border-bottom: 1px solid var(--color-border);
}

.dialog-title {
    color: var(--color-text);
    font-size: 18px;
    font-weight: 400;
    letter-spacing: -0.01em;
    margin: 0;
}

.dialog-body {
    padding: 24px;
}

.dialog-message {
    color: var(--color-text);
    font-size: 14px;
    line-height: 1.6;
    margin: 0;
    white-space: pre-line;
}

.dialog-footer {
    padding: 16px 24px 24px 24px;
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    border-top: 1px solid var(--color-border);
    flex-wrap: wrap;
}

.dialog-btn {
    padding: 10px 20px;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    color: var(--color-text);
    font-size: 14px;
    font-weight: 400;
    cursor: pointer;
    border-radius: 4px;
    transition: var(--transition-gentle);
    min-width: 80px;
}

.dialog-btn:hover {
    background: var(--color-stone-light);
    border-color: var(--color-stone-dark);
}

.dialog-btn-primary {
    background: var(--color-accent);
    color: #ffffff;
    border-color: var(--color-accent);
}

.dialog-btn-primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
}

.dialog-btn-secondary {
    background: var(--color-surface);
    color: var(--color-text);
}

@media (max-width: 767px) {
    .dialog-content {
        width: 95%;
        max-width: none;
    }
    
    .dialog-footer {
        flex-direction: column-reverse;
        gap: 8px;
    }
    
    .dialog-btn {
        width: 100%;
    }
}

/* 當按鈕較多時，調整佈局 */
.dialog-footer.multiple-buttons {
    justify-content: stretch;
}

.dialog-footer.multiple-buttons .dialog-btn {
    flex: 1;
    min-width: 100px;
}

@media (max-width: 767px) {
    .dialog-footer.multiple-buttons .dialog-btn {
        flex: none;
        width: 100%;
    }
}