/* ==================== ROOT VARIABLES ==================== */
:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-card: #1a1a1a;
    --accent: #e63946;
    --accent-hover: #c1121f;
    --text-primary: #ffffff;
    --text-secondary: #aaaaaa;
    --border: #2a2a2a;
    --font-main: 'Segoe UI', system-ui, sans-serif;
}

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

body {
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-main);
    min-height: 100vh;
}

/* ==================== NAVIGATION ==================== */
#main-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 40px;
    height: 70px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-logo {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}

.nav-logo span {
    color: var(--accent);
}

.nav-links {
    display: flex;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--text-primary);
}

.cart-btn {
    background: var(--accent);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: background-color 0.2s;
    letter-spacing: 0.5px;
}

.cart-btn:hover {
    background: var(--accent-hover);
}

/* ==================== HERO ==================== */
#hero {
    min-height: 220px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 40px;
    scroll-margin-top: 70px;
}


.hero-content h1 {
    font-size: 52px;
    font-weight: 800;
    letter-spacing: -2px;
    line-height: 1;
    margin-bottom: 12px;
}

.hero-content h1 span {
    color: var(--accent);
}

.hero-content p {
    font-size: 13px;
    color: var(--text-secondary);
    letter-spacing: 3px;
    text-transform: uppercase;
}

/* ==================== SHOP SECTION ==================== */
#featured {
    padding: 60px 40px;
    max-width: 1400px;
    margin: 0 auto;
}

/* ==================== BROWSE SECTION ==================== */
#browse {
    padding: 60px 40px;
    max-width: 1400px;
    margin: 0 auto;
    border-top: 1px solid var(--border);
}

.section-header {
    margin-bottom: 24px;
}

.section-header h2 {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

/* ==================== CATEGORY TABS ==================== */
.category-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.category-tab {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 10px 24px;
    border-radius: 4px;
    font-size: 13px;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.2s;
    text-transform: uppercase;
}

.category-tab:hover {
    border-color: var(--accent);
    color: var(--text-primary);
}

.category-tab.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

/* ==================== PRODUCT GRID ==================== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 24px;
}

/* ==================== PRODUCT CARDS ==================== */
.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.2s, border-color 0.2s;
    cursor: pointer;
}

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

.product-image {
    position: relative;
    height: 200px;
    background: #111;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: 8px;
}

.image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 13px;
    text-align: center;
    padding: 16px;
}

.slab-indicator {
    position: absolute;
    top: 10px;
    left: 10px;
    background: var(--accent);
    color: white;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 4px 8px;
    border-radius: 3px;
    z-index: 1;
}

.lang-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 4px 8px;
    border-radius: 3px;
    z-index: 1;
}

.lang-badge.english {
    background: #1d3557;
    color: #a8dadc;
}

.lang-badge.korean {
    background: #2d6a4f;
    color: #95d5b2;
}

.lang-badge.japanese {
    background: #3d1f5e;
    color: #c8a4e8;
}

.product-info {
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.product-name {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
}

.product-set {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.grade-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 3px;
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 1px;
    width: fit-content;
}

.grade-badge.psa {
    background: #1a3a5c;
    color: #4fc3f7;
}

.grade-badge.bgs {
    background: #1a3a2c;
    color: #4fc78a;
}

.grade-badge.cgc {
    background: #3a2a1a;
    color: #f7a94f;
}

.grade-badge.ace {
    background: #2a1a3a;
    color: #c44ff7;
}

.condition-badge {
    display: inline-block;
    padding: 4px 10px;
    border-radius: 3px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.5px;
    width: fit-content;
    background: var(--border);
    color: var(--text-secondary);
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 8px;
}

.product-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--accent);
}

.add-to-cart {
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 12px;
    letter-spacing: 0.5px;
    cursor: pointer;
    transition: all 0.2s;
}

.add-to-cart:hover {
    background: var(--accent);
    color: white;
}

/* ==================== FOOTER ==================== */
footer {
    border-top: 1px solid var(--border);
    padding: 40px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 13px;
    margin-top: 80px;
}

/* ==================== ADMIN DELETE BTN ==================== */
.delete-btn {
    background: transparent;
    border: 1px solid #444;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.2s;
}

.delete-btn:hover {
    border-color: var(--accent);
    color: var(--accent);
}

/* ==================== NOTIFICATION ==================== */
@keyframes slideIn {
    from { opacity: 0; transform: translateY(16px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==================== FEATURED INDICATOR ==================== */
.featured-indicator {
    position: absolute;
    bottom: 10px;
    left: 10px;
    background: #f4a261;
    color: #000;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 1px;
    padding: 4px 8px;
    border-radius: 3px;
    z-index: 1;
}

/* ==================== CART SIDEBAR ==================== */
#cart-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 998;
}

#cart-sidebar {
    position: fixed;
    top: 0;
    right: -420px;
    width: 420px;
    height: 100vh;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border);
    z-index: 999;
    display: flex;
    flex-direction: column;
    transition: right 0.3s ease;
}

#cart-sidebar.open {
    right: 0;
}

.cart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px;
    border-bottom: 1px solid var(--border);
}

.cart-header h3 {
    font-size: 18px;
    font-weight: 700;
}

.cart-header button {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 20px;
    cursor: pointer;
}

#cart-items {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.cart-item {
    display: flex;
    gap: 16px;
    align-items: center;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.cart-item-image {
    width: 60px;
    height: 60px;
    background: #111;
    border-radius: 4px;
    overflow: hidden;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.cart-item-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.cart-item-details {
    flex: 1;
}

.cart-item-name {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
}

.cart-item-price {
    font-size: 14px;
    color: var(--accent);
    font-weight: 700;
}

.cart-item-remove {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 16px;
    padding: 4px;
}

.cart-item-remove:hover {
    color: var(--accent);
}

.cart-empty {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    padding: 40px 0;
}

.cart-footer {
    padding: 24px;
    border-top: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.cart-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 18px;
    font-weight: 700;
}

.checkout-btn {
    background: var(--accent);
    color: white;
    border: none;
    padding: 16px;
    border-radius: 4px;
    font-size: 14px;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    transition: background 0.2s;
    width: 100%;
}

.checkout-btn:hover {
    background: var(--accent-hover);
}

/* ==================== ABOUT PAGE ==================== */
#about-hero {
    min-height: 200px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 60px 40px;
}

#about-content {
    padding: 80px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 40px;
}

.about-block h2 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--accent);
}

.about-block p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 12px;
}

/* ==================== CONTACT PAGE ==================== */
#contact-content {
    padding: 80px 40px;
    max-width: 1200px;
    margin: 0 auto;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
}

.contact-info h2 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 16px;
}

.contact-info p {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 32px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.contact-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border);
}

.contact-label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* ==================== FOOTER LINKS ==================== */
.footer-links {
    display: flex;
    gap: 24px;
    justify-content: center;
    margin-bottom: 16px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--text-primary);
}

/* ==================== MOBILE RESPONSIVE ==================== */
@media (max-width: 600px) {

    /* NAV */
    #main-nav {
        padding: 0 16px;
        height: auto;
        flex-wrap: wrap;
        padding-top: 12px;
        padding-bottom: 12px;
        gap: 12px;
    }

    .nav-logo {
        font-size: 20px;
    }

    .nav-links {
        order: 3;
        width: 100%;
        gap: 12px;
        flex-wrap: wrap;
        padding-bottom: 8px;
    }

    .nav-links a {
        font-size: 12px;
    }

    /* HERO */
    #hero {
        min-height: 180px;
        padding: 40px 16px;
    }

    .hero-content h1 {
        font-size: 36px;
        letter-spacing: -1px;
    }

    .hero-content p {
        font-size: 11px;
        letter-spacing: 2px;
    }

    /* FEATURED */
    #featured {
        padding: 40px 16px;
    }

    .section-header h2 {
        font-size: 22px;
    }

    /* PRODUCT GRID */
    .product-grid {
        grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
        gap: 16px;
    }

    /* PRODUCT CARDS */
    .product-image {
        height: 160px;
    }

    .product-name {
        font-size: 13px;
    }

    .product-price {
        font-size: 16px;
    }

    .add-to-cart {
        padding: 6px 10px;
        font-size: 11px;
    }

    /* CART SIDEBAR */
    #cart-sidebar {
        width: 100%;
        right: -100%;
    }

    /* PRODUCT OVERLAY */
    #product-overlay > div {
        grid-template-columns: 1fr !important;
        max-height: 95vh;
        overflow-y: auto;
    }

    /* FOOTER */
    footer {
        padding: 24px 16px;
    }

    .footer-links {
        gap: 16px;
    }
}

@media (max-width: 480px) {
    .product-grid {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
    }

    .hero-content h1 {
        font-size: 28px;
    }
}

/* ==================== NEWSLETTER ==================== */
#newsletter {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
    padding: 60px 40px;
    text-align: center;
    margin-top: 80px;
}

.newsletter-content h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
}

.newsletter-content p {
    color: var(--text-secondary);
    font-size: 15px;
    margin-bottom: 32px;
}

.newsletter-form {
    display: flex;
    gap: 12px;
    justify-content: center;
    max-width: 480px;
    margin: 0 auto;
}

.newsletter-form input {
    flex: 1;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: 4px;
    font-size: 14px;
    outline: none;
}

.newsletter-form input:focus {
    border-color: var(--accent);
}

.newsletter-form button {
    background: var(--accent);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 4px;
    font-size: 14px;
    cursor: pointer;
    transition: background 0.2s;
    white-space: nowrap;
}

.newsletter-form button:hover {
    background: var(--accent-hover);
}

.newsletter-msg {
    margin-top: 16px;
    font-size: 13px;
    min-height: 20px;
}

@media (max-width: 600px) {
    .newsletter-form {
        flex-direction: column;
    }
}

/* ==================== SOCIAL FOOTER ==================== */
.footer-social {
    margin-bottom: 16px;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13px;
    letter-spacing: 0.5px;
    transition: color 0.2s;
}

.social-link:hover {
    color: var(--accent);
}