:root {
    --green: #00D26A;
    --yellow: #FFB800;
    --orange: #FF6B00;
    --bg: #FFFFFF;
    --bg-card: #F5F5F5;
    --bg-header: #FFFFFF;
    --text: #1A1A1A;
    --text-secondary: #666666;
    --border: #E0E0E0;
    --shadow: 0 2px 8px rgba(0,0,0,0.08);
}

[data-theme="dark"] {
    --bg: #0D0D0D;
    --bg-card: #1A1A1A;
    --bg-header: #141414;
    --text: #FFFFFF;
    --text-secondary: #A0A0A0;
    --border: #2A2A2A;
    --shadow: 0 2px 8px rgba(0,0,0,0.3);
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    transition: background 0.3s, color 0.3s;
}

.header {
    background: var(--bg-header);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-fit {
    background: linear-gradient(135deg, var(--green), var(--yellow), var(--orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.theme-toggle {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 0.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    transition: all 0.3s;
}

.theme-toggle:hover {
    border-color: var(--green);
}

.icon-sun, .icon-moon {
    font-size: 1.2rem;
    padding: 0.25rem 0.4rem;
    border-radius: 50px;
    transition: all 0.3s;
}

[data-theme="dark"] .icon-sun {
    opacity: 0.4;
}

[data-theme="light"] .icon-moon {
    opacity: 0.4;
}

[data-theme="dark"] .icon-moon {
    background: rgba(255,255,255,0.1);
}

[data-theme="light"] .icon-sun {
    background: rgba(0,0,0,0.05);
}

.main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem;
}

.filters-section {
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.filter-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 80px;
}

.filters {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.coupon-rule {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-top: 0.375rem;
    font-style: italic;
}

.filter-btn {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 50px;
    padding: 0.5rem 1rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text);
    cursor: pointer;
    transition: all 0.2s;
}

.filter-btn:hover {
    border-color: var(--green);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--green), var(--yellow));
    border-color: transparent;
    color: #000;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
}

.product-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
    border-color: var(--green);
}

.product-image {
    width: 100%;
    height: 200px;
    object-fit: contain;
    background: var(--bg);
    padding: 1rem;
}

.product-content {
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex: 1;
}

.product-marketplace {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--green);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.product-title {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-description {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-pricing {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.price-current {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--green), var(--yellow));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.price-original {
    font-size: 1rem;
    color: var(--text-secondary);
    text-decoration: line-through;
}

.discount-badge {
    background: linear-gradient(135deg, var(--orange), var(--yellow));
    color: #000;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.5rem;
    border-radius: 6px;
}

.product-coupon {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg);
    border: 1px dashed var(--green);
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
}

.product-coupon:hover {
    background: rgba(0, 210, 106, 0.1);
}

.coupon-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.coupon-code {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--green);
    font-family: monospace;
}

.coupon-copy {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-left: auto;
}

.product-hashtags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.375rem;
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
}

.hashtag {
    font-size: 0.75rem;
    color: var(--yellow);
    background: rgba(255, 184, 0, 0.1);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

.product-cta {
    margin-top: auto;
    padding-top: 0.5rem;
}

.btn-buy {
    display: block;
    width: 100%;
    padding: 0.875rem;
    background: linear-gradient(135deg, var(--green), var(--yellow), var(--orange));
    border: none;
    border-radius: 10px;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    color: #000;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: all 0.3s;
}

.btn-buy:hover {
    opacity: 0.9;
    transform: scale(1.02);
}

.loading {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--green);
    border-radius: 50%;
    margin: 0 auto 1rem;
    animation: spin 0.8s linear infinite;
}

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

.empty-state {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

.footer {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
    font-size: 0.875rem;
    border-top: 1px solid var(--border);
    margin-top: 3rem;
}

.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--green);
    color: #000;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.875rem;
    opacity: 0;
    transition: all 0.3s;
    z-index: 1000;
    pointer-events: none;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.filter-toggle-btn {
    display: none;
    align-items: center;
    gap: 0.5rem;
    background: linear-gradient(135deg, var(--green), var(--yellow));
    border: none;
    border-radius: 50px;
    padding: 0.75rem 1.25rem;
    font-family: 'Inter', sans-serif;
    font-size: 0.9rem;
    font-weight: 600;
    color: #000;
    cursor: pointer;
    margin-bottom: 1.5rem;
    transition: all 0.3s;
}

.filter-toggle-btn:hover {
    opacity: 0.9;
}

.filter-icon {
    font-size: 1.1rem;
}

.filters-header {
    display: none;
}

.filters-overlay {
    display: none;
}

@media (max-width: 640px) {
    .filter-toggle-btn {
        display: flex;
    }

    .filters-section {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 320px;
        height: 100vh;
        background: var(--bg);
        z-index: 200;
        padding: 1.5rem;
        overflow-y: auto;
        transition: right 0.3s ease;
        box-shadow: -4px 0 20px rgba(0,0,0,0.2);
    }

    .filters-section.open {
        right: 0;
    }

    .filters-header {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 1.5rem;
        padding-bottom: 1rem;
        border-bottom: 1px solid var(--border);
    }

    .filters-header h3 {
        font-size: 1.25rem;
        font-weight: 700;
    }

    .filters-close {
        background: var(--bg-card);
        border: 1px solid var(--border);
        border-radius: 50%;
        width: 32px;
        height: 32px;
        font-size: 1rem;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        transition: all 0.2s;
    }

    .filters-close:hover {
        border-color: var(--green);
    }

    .filter-group {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        margin-bottom: 1.5rem;
    }

    .filter-label {
        min-width: auto;
    }

    .filters {
        width: 100%;
    }

    .filter-btn {
        flex: 1;
        min-width: calc(50% - 0.25rem);
        text-align: center;
    }

    .filters-overlay {
        display: block;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0,0,0,0.5);
        z-index: 190;
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s;
    }

    .filters-overlay.show {
        opacity: 1;
        visibility: visible;
    }

    .products-grid {
        grid-template-columns: 1fr;
    }

    .logo-text {
        font-size: 1.25rem;
    }

    .price-current {
        font-size: 1.25rem;
    }
}