:root {
    --primary: #FFD400;
    --secondary: #17B7FF;
    --accent: #F26122;
    --dark: #0F1113;
    --off-dark: #15181B;
    --light-grey: #AEB6C2;
    --light: #E6EAF0;
    --white: #FFFFFF;
    --font-heading: 'Oswald', sans-serif;
    --font-body: 'Inter', sans-serif;
    --transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
    --container-width: 1440px;
    --radius: 16px;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
    font-family: var(--font-body);
    line-height: 1.7;
    color: var(--light);
    background-color: var(--dark);
    overflow-x: clip;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}
main { flex-grow: 1; }
body.menu-open { overflow: hidden; }
::selection { background: var(--primary); color: var(--dark); }
.container { width: 100%; max-width: var(--container-width); margin: 0 auto; padding: 0 40px; }
section { padding: clamp(20px, 5vw, 100px) 0; position: relative; }
a { color: var(--secondary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--white); }

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.1;
    text-transform: uppercase;
    margin-bottom: 1rem;
    color: var(--white);
}
h1 { font-size: clamp(2.5rem, 6.5vw, 4.6rem); letter-spacing: 0.08em; }
h2 { font-size: clamp(2rem, 4vw, 3.2rem); color: var(--primary); }
p { margin-bottom: 1.2rem; color: var(--light-grey); font-size: 1.05rem; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    font-family: var(--font-heading);
    font-weight: 700;
    text-transform: uppercase;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.88rem;
    letter-spacing: 1.5px;
    border: 2px solid;
    text-align: center;
}
.btn-primary { background: var(--primary); color: var(--dark); border-color: var(--primary); }
.btn-primary:hover { background: transparent; color: var(--primary); transform: scale(1.03); }
.btn-outline { background: transparent; color: var(--light); border-color: rgba(255, 255, 255, 0.3); }
.btn-outline:hover { border-color: var(--primary); color: var(--primary); }

.top-bar {
    background-color: var(--primary);
    padding: 8px 0;
    color: var(--dark);
    font-size: 0.9rem;
    transition: all 0.4s ease;
    position: relative;
    z-index: 1002;
}
.top-bar-content {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    flex-wrap: wrap;
}
.top-bar a {
    color: var(--dark);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}
.top-bar a:hover { color: var(--dark); opacity: 0.8; }

header { position: fixed; top: 0; left: 0; width: 100%; z-index: 1000; transition: all 0.4s ease; }
header.scrolled { background-color: rgba(15, 17, 19, 0.8); backdrop-filter: blur(15px); }
header.scrolled .navbar-container { padding: 20px 0; }
header.scrolled .logo img { height: 70px; }
header.scrolled .top-bar { max-height: 0; padding-top: 0; padding-bottom: 0; overflow: hidden; border: none; }
.navbar-container { padding: 30px 0; transition: var(--transition); }
.navbar { display: flex; align-items: center; justify-content: space-between; }
.logo img { height: 100px; width: auto; transition: var(--transition); }
.header-nav-center { display: flex; gap: 40px; }
.header-nav-center a {
    color: var(--white);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    position: relative;
    padding: 5px 0;
    letter-spacing: 1.5px;
}
.header-nav-center a::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--primary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
}
.header-nav-center a:hover::after { transform: scaleX(1); }
.nav-actions { display: flex; align-items: center; gap: 22px; }
.cart-link {
    color: var(--white);
    font-size: 1.2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border: 1px solid rgba(255, 255, 255, 0.22);
    border-radius: 50%;
    position: relative;
}
.cart-link:hover { border-color: var(--primary); color: var(--primary); }
.cart-count-badge {
    position: absolute;
    top: -8px;
    right: -10px;
    background: var(--primary);
    color: var(--dark);
    font-size: 0.7rem;
    font-weight: 700;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: none;
    align-items: center;
    justify-content: center;
}

.menu-button {
    width: 50px;
    height: 50px;
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 14px;
    z-index: 1002;
    transition: var(--transition);
}
.menu-button span {
    display: block;
    width: 28px;
    height: 2px;
    background-color: var(--white);
    transition: transform 0.4s ease, opacity 0.3s ease, background-color 0.3s ease;
}
.menu-button.active span { background-color: var(--primary); }
.menu-button.active span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.menu-button.active span:nth-child(2) { opacity: 0; }
.menu-button.active span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

.mobile-menu {
    position: fixed;
    inset: 0;
    display: flex;
    justify-content: flex-end;
    align-items: stretch;
    background: rgba(15, 17, 19, 0.65);
    backdrop-filter: blur(6px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.4s ease, visibility 0.4s ease;
    z-index: 1001;
}
.mobile-menu.open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}
.mobile-menu__panel {
    width: min(420px, 85vw);
    background: rgba(21, 24, 27, 0.98);
    border-left: 1px solid rgba(255, 255, 255, 0.08);
    padding: clamp(40px, 8vw, 64px) clamp(32px, 6vw, 48px);
    display: flex;
    flex-direction: column;
    gap: clamp(32px, 6vw, 48px);
    box-shadow: -20px 0 60px rgba(0, 0, 0, 0.45);
}
.mobile-menu__header { display: flex; align-items: center; justify-content: space-between; }
.mobile-menu__label {
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 4px;
    color: var(--primary);
    font-size: 0.85rem;
}
.mobile-menu__close {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--white);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}
.mobile-menu__close:hover { border-color: var(--primary); color: var(--primary); }
.mobile-menu__nav { display: flex; flex-direction: column; gap: 18px; }
.mobile-menu__nav a {
    font-family: var(--font-heading);
    font-size: clamp(1.5rem, 5vw, 2.5rem);
    color: var(--light-grey);
    text-transform: uppercase;
    letter-spacing: 2px;
    padding-bottom: 6px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.mobile-menu__nav a:hover { color: var(--white); }
.mobile-menu__footer { margin-top: auto; display: flex; flex-direction: column; gap: 16px; }
.mobile-menu__footer .btn { width: 100%; }

.page-header-section {
    padding-top: 180px;
    padding-bottom: 50px;
    background: radial-gradient(circle at 50% 0%, rgba(255, 212, 0, 0.15) 0%, var(--dark) 70%);
    text-align: center;
}

.category-content-section { padding-top: 10px; }
.category-shell {
    background-color: var(--off-dark);
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.12);
    padding: clamp(20px, 3.4vw, 38px);
}

/* ============================================================
   ✅ NEW: CATEGORY PAGE LAYOUT + QUICK LINKS SIDEBAR
   ============================================================ */
/* FIX: Prevents horizontal scrolling items from blowing out CSS Grid tracks */
.category-sidebar,
.category-main,
.category-hero-image,
.category-hero-content,
.product-detail-image,
.product-detail-content {
    min-width: 0;
}

.category-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: 26px;
    align-items: start;
}

.category-sidebar {
    position: sticky;
    top: 140px; /* sits under fixed header */
    align-self: start;
}

.category-sidebar-card {
    background: rgba(15, 17, 19, 0.86);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 14px;
    padding: 18px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.category-sidebar-title {
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--primary);
    font-size: 0.95rem;
}

.category-nav {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.category-nav a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 12px 12px;
    border-radius: 12px;
    border: 1px solid rgba(255,255,255,0.10);
    background: rgba(21, 24, 27, 0.55);
    color: var(--light-grey);
    font-family: var(--font-heading);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 0.82rem;
}

.category-nav a i {
    color: rgba(255,255,255,0.35);
}

.category-nav a:hover {
    border-color: var(--primary);
    color: var(--white);
    transform: translateX(4px);
}

.category-nav a.active,
.category-nav a[aria-current="page"] {
    background: rgba(255, 212, 0, 0.12);
    border-color: rgba(255, 212, 0, 0.55);
    color: var(--white);
}

.category-nav a.active i,
.category-nav a[aria-current="page"] i {
    color: var(--primary);
}

.category-sidebar-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.category-sidebar-actions .btn {
    width: 100%;
    padding: 10px 18px;
    font-size: 0.78rem;
    letter-spacing: 1px;
}

/* Mobile/tablet overrides */
@media (max-width: 1024px) {
    .category-layout {
        grid-template-columns: 1fr;
    }
    .category-sidebar {
        position: static;
        top: auto;
    }
    .category-nav {
        flex-direction: row;
        overflow-x: auto;
        padding-bottom: 6px;
        gap: 10px;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
    }
    .category-nav::-webkit-scrollbar { display: none; }
    .category-nav a {
        white-space: nowrap;
        min-width: max-content;
        transform: none !important;
    }
    
    /* FIX: sidebar buttons neatly stack on mobile */
    .category-sidebar-actions {
        flex-direction: column;
        gap: 12px;
    }
    .category-sidebar-actions .btn {
        width: 100%;
        flex: none;
    }

    /* FIX: bottom page buttons neatly stack on mobile */
    .back-actions {
        flex-direction: column;
        gap: 12px;
    }
    .back-actions .btn {
        width: 100%;
        flex: none;
    }

    /* FIX: Images fit fully on mobile */
    .inventory-card .inventory-image img {
        height: auto;
        aspect-ratio: 4 / 3;
        object-fit: contain;
        background-color: #ffffff;
    }
}
/* ============================================================ */

.category-hero {
    display: grid;
    grid-template-columns: minmax(280px, 460px) 1fr;
    gap: 34px;
    align-items: center;
    margin-bottom: 26px;
}
.category-hero-image {
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(0, 0, 0, 0.2);
}
.category-hero-image img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    display: block;
}
.category-hero-content h2 { margin-bottom: 14px; }
.category-hero-content p { margin-bottom: 0; }

.inventory-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 20px;
}
.inventory-card {
    background: rgba(15, 17, 19, 0.86);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 14px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}
.inventory-card:hover {
    transform: translateY(-6px);
    border-color: var(--primary);
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.25);
}
.inventory-card .inventory-image {
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.1);
}
.inventory-card .inventory-image img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
}
.inventory-card h3 {
    margin-bottom: 0;
    font-size: 1.35rem;
}
.inventory-specs {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 6px;
    color: var(--light-grey);
    font-size: 0.95rem;
}
.inventory-specs li strong { color: var(--white); font-weight: 600; }
.inventory-price {
    margin-top: auto;
    color: var(--primary);
    font-family: var(--font-heading);
    font-size: 1.35rem;
    letter-spacing: 0.5px;
}
.inventory-note {
    color: var(--light-grey);
    font-size: 0.9rem;
}
.status-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: fit-content;
    font-family: var(--font-heading);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 1px;
    background: rgba(23, 183, 255, 0.18);
    border: 1px solid rgba(23, 183, 255, 0.45);
    color: var(--secondary);
    padding: 4px 10px;
    border-radius: 999px;
}
.inventory-actions {
    margin-top: 8px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
}
.inventory-actions .btn {
    width: 100%;
    padding: 10px 20px;
    font-size: 0.78rem;
    letter-spacing: 1px;
}

.placeholder-panel {
    background: rgba(15, 17, 19, 0.78);
    border: 1px dashed rgba(255, 255, 255, 0.28);
    border-radius: 12px;
    padding: clamp(22px, 3.2vw, 36px);
    margin-top: 14px;
}
.placeholder-panel h3 { margin-bottom: 10px; }
.placeholder-panel p:last-child { margin-bottom: 0; }

.request-form {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top: 16px;
}
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-group.full { grid-column: 1 / -1; }
.form-group label {
    color: var(--light);
    font-weight: 600;
    font-size: 0.92rem;
}
.form-group input,
.form-group select,
.form-group textarea {
    border: 1px solid rgba(255, 255, 255, 0.16);
    background: rgba(0, 0, 0, 0.26);
    color: var(--light);
    border-radius: 10px;
    padding: 12px 14px;
    font-family: var(--font-body);
    font-size: 0.95rem;
}
.form-group select {
    background: rgba(0, 0, 0, 0.55);
    color: var(--white);
    color-scheme: dark;
    -webkit-text-fill-color: var(--white);
}
.form-group select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(255, 212, 0, 0.22);
}
.form-group select option {
    background-color: #0F1113;
    color: #FFFFFF;
}
.form-group select option:checked {
    background-color: #1F57BE;
    color: #FFFFFF;
}
.form-group textarea { resize: vertical; min-height: 140px; }
.form-actions { grid-column: 1 / -1; display: flex; gap: 12px; align-items: center; }
.form-feedback { grid-column: 1 / -1; font-size: 0.95rem; }
.form-feedback.success { color: #7DFFB8; }
.form-feedback.error { color: #FF8F8F; }

.used-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 16px;
    margin-top: 18px;
}
.used-card {
    background: rgba(15, 17, 19, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 12px;
    overflow: hidden;
}
.used-card img {
    width: 100%;
    aspect-ratio: 4/3;
    object-fit: cover;
    display: block;
}
.used-card p {
    margin: 0;
    padding: 12px 14px;
    font-size: 0.9rem;
}

.back-actions {
    display: flex;
    justify-content: flex-start;
    gap: 12px;
    margin-top: 28px;
    flex-wrap: wrap;
}
.product-detail-layout {
    display: grid;
    grid-template-columns: minmax(280px, 460px) 1fr;
    gap: 28px;
    align-items: start;
}
.product-detail-image {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(0, 0, 0, 0.28);
}
.product-detail-image img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: contain;
    background: #f3f3f3;
    display: block;
}
.product-detail-content h2 {
    margin-bottom: 12px;
    color: var(--white);
}
.product-detail-description {
    color: var(--light-grey);
    margin-bottom: 12px;
}
.product-detail-specs {
    list-style: none;
    margin: 14px 0 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
}
.product-detail-specs li {
    padding: 10px 12px;
    color: var(--light);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.product-detail-specs li:last-child {
    border-bottom: none;
}

footer { background-color: var(--dark); color: #aaa; padding: 0 0 40px; }
.footer-content { display: grid; grid-template-columns: 2fr 1fr 1fr 1.5fr; gap: 60px; margin-bottom: 80px; }
.footer-logo { margin-bottom: 20px; }
.footer-logo img { height: 70px; width: auto; }
.footer-social { display: flex; gap: 15px; margin-top: 25px; }
.footer-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background-color: var(--off-dark);
    border-radius: 50%;
    color: #aaa;
}
.footer-social a:hover { background-color: var(--primary); color: var(--dark); transform: translateY(-3px); }
.footer-heading { font-size: 1.3rem; margin-bottom: 30px; color: var(--white); letter-spacing: 0.5px; text-align: left; }
.footer-links ul { list-style: none; }
.footer-links li { margin-bottom: 15px; }
.footer-links a:hover { color: var(--white); }
.footer-powered-by {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
    margin: 0 auto 50px;
}
.footer-powered-by a { text-decoration: none; }
.footer-powered-by-group {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(21, 24, 27, 0.85);
    transition: var(--transition);
}
.footer-powered-by-group p {
    margin: 0;
    color: var(--light-grey);
    font-family: var(--font-heading);
    font-size: 0.75rem;
    letter-spacing: 0.25rem;
    text-transform: uppercase;
}
.footer-powered-by-group img {
    height: 12px;
    width: auto;
    filter: grayscale(1) brightness(1.2);
    transition: var(--transition);
}
.footer-powered-by-group:hover {
    border-color: var(--primary);
    background: rgba(255, 212, 0, 0.12);
    transform: translateY(-3px);
}
.footer-powered-by-group:hover p { color: var(--white); }
.footer-powered-by-group:hover img { filter: none; }
.copyright {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 40px;
    text-align: center;
    font-size: 0.9rem;
}
.copyright p { margin: 0 auto; }

@media (max-width: 1024px) {
    .menu-button { display: flex; }
    .header-nav-center, .nav-actions .btn { display: none; }
    .category-hero { grid-template-columns: 1fr; }
    .product-detail-layout { grid-template-columns: 1fr; }
    .footer-content { grid-template-columns: 1fr 1fr; }
    
    .category-hero-image {
        max-height: 280px;
    }
    .category-hero-image img {
        object-fit: contain;
        max-height: 280px;
    }
}

@media (max-width: 768px) {
    .container { padding: 0 20px; }
    .top-bar { font-size: clamp(0.69rem, 2.4vw, 0.85rem); }
    .top-bar-content {
        flex-wrap: nowrap;
        justify-content: space-between;
        gap: clamp(8px, 2.5vw, 18px);
        white-space: nowrap;
    }
    .top-bar a { white-space: nowrap; }
    .navbar-container { padding: 18px 0; }
    .logo img { height: 72px; }
    .inventory-card { transition: var(--transition); }
    .request-form { grid-template-columns: 1fr; }
    .footer-content { grid-template-columns: 1fr; text-align: center; }
    .footer-heading, .footer-logo { text-align: center; }
    .footer-logo img { margin: 0 auto; }
    .footer-social, .footer-links ul { justify-content: center; }
}