:root {
    --tz-primary: #0f172a;
    --tz-secondary: #2563eb;
    --tz-accent: #38bdf8;
    --tz-success: #22c55e;
    --tz-danger: #ef4444;
    --tz-bg: #f8fafc;
    --tz-dark: #020617;
    --tz-text: #111827;
    --tz-muted: #64748b;
    --tz-border: #e2e8f0;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: "Poppins", Arial, sans-serif;
    color: var(--tz-text);
    background: var(--tz-bg);
}

a {
    color: inherit;
    text-decoration: none;
}

.site-main {
    min-height: 60vh;
}

.section-padding {
    padding: 72px 0;
}

.section-kicker {
    margin-bottom: 8px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0;
    color: var(--tz-secondary);
    text-transform: uppercase;
}

.section-title {
    margin-bottom: 24px;
    font-weight: 700;
    color: var(--tz-primary);
}

.top-strip {
    color: #f8fafc;
    background: #111827;
}

.navbar-techzone {
    background: rgba(15, 23, 42, 0.96);
    backdrop-filter: blur(12px);
}

.navbar-techzone .navbar-brand,
.navbar-techzone .nav-link {
    color: #f8fafc;
}

.navbar-techzone .nav-link:hover,
.navbar-techzone .nav-link.active {
    color: var(--tz-accent);
}

.search-suggestion-box {
    position: absolute;
    top: calc(100% + 6px);
    right: 0;
    z-index: 1050;
    width: min(360px, 86vw);
    overflow: hidden;
    border: 1px solid var(--tz-border);
    border-radius: 8px;
    background: #fff;
    box-shadow: 0 18px 45px rgba(15, 23, 42, 0.18);
}

.search-suggestion-item {
    display: grid;
    grid-template-columns: 58px 1fr;
    gap: 10px;
    align-items: center;
    padding: 10px;
    color: var(--tz-text);
}

.search-suggestion-item + .search-suggestion-item {
    border-top: 1px solid var(--tz-border);
}

.search-suggestion-item:hover {
    background: #f1f5f9;
}

.search-suggestion-item img {
    width: 58px;
    height: 44px;
    border-radius: 6px;
    object-fit: cover;
}

.search-suggestion-item small {
    display: block;
    color: var(--tz-secondary);
    font-weight: 700;
}

.hero-section {
    position: relative;
    overflow: hidden;
    color: #f8fafc;
    background:
        radial-gradient(circle at top left, rgba(56, 189, 248, 0.22), transparent 34%),
        linear-gradient(135deg, #020617 0%, #0f172a 48%, #1e3a8a 100%);
}

.hero-section .container {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2.25rem, 5vw, 4.5rem);
    font-weight: 700;
    line-height: 1.05;
}

.hero-copy {
    max-width: 620px;
    color: #cbd5e1;
}

.hero-actions {
    color: #cbd5e1;
}

.hero-card {
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 8px;
    background: rgba(15, 23, 42, 0.72);
}

.btn-tech {
    --bs-btn-bg: var(--tz-secondary);
    --bs-btn-border-color: var(--tz-secondary);
    --bs-btn-hover-bg: #1d4ed8;
    --bs-btn-hover-border-color: #1d4ed8;
    --bs-btn-color: #fff;
    --bs-btn-hover-color: #fff;
}

.btn-outline-tech {
    --bs-btn-color: var(--tz-secondary);
    --bs-btn-border-color: var(--tz-secondary);
    --bs-btn-hover-bg: var(--tz-secondary);
    --bs-btn-hover-border-color: var(--tz-secondary);
    --bs-btn-hover-color: #fff;
}

.category-card,
.product-card,
.dashboard-card,
.stat-card,
.testimonial-card {
    height: 100%;
    border: 1px solid var(--tz-border);
    border-radius: 8px;
    background: #fff;
}

.category-card {
    display: block;
    color: var(--tz-text);
    transition: 0.28s ease;
}

.category-card:hover {
    color: var(--tz-secondary);
    transform: translateY(-5px);
    box-shadow: 0 14px 36px rgba(15, 23, 42, 0.12);
}

.category-icon {
    display: inline-grid;
    width: 54px;
    height: 54px;
    place-items: center;
    border-radius: 8px;
    color: #0f172a;
    background: #e0f2fe;
}

.product-card img {
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: 8px 8px 0 0;
}

.product-image-wrap {
    position: relative;
    overflow: hidden;
}

.product-gallery {
    display: grid;
    gap: 14px;
}

.product-gallery-main {
    position: relative;
    overflow: hidden;
    border: 1px solid var(--tz-border);
    border-radius: 8px;
    background: #fff;
}

.product-gallery-main img {
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

.product-gallery-thumbs {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
}

.gallery-thumb {
    overflow: hidden;
    padding: 0;
    border: 2px solid transparent;
    border-radius: 8px;
    background: #fff;
    cursor: pointer;
}

.gallery-thumb.active,
.gallery-thumb:hover {
    border-color: var(--tz-secondary);
}

.gallery-thumb img {
    display: block;
    width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
}

.product-badge {
    position: absolute;
    top: 12px;
    left: 12px;
    border-radius: 999px;
    padding: 4px 10px;
    color: #fff;
    background: #ef4444;
    font-size: 0.78rem;
    font-weight: 700;
}

.price {
    font-weight: 700;
    color: var(--tz-secondary);
}

.old-price {
    color: var(--tz-muted);
    text-decoration: line-through;
}

.muted-text {
    color: var(--tz-muted);
}

.deal-band {
    color: #f8fafc;
    background:
        linear-gradient(135deg, rgba(20, 184, 166, 0.88), rgba(37, 99, 235, 0.92)),
        #0f172a;
}

.deal-product {
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.12);
}

.brand-chip {
    display: flex;
    min-height: 78px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--tz-border);
    border-radius: 8px;
    color: var(--tz-primary);
    background: #fff;
    font-weight: 700;
}

.newsletter-band {
    color: #f8fafc;
    background: #0f766e;
}

.feature-icon {
    display: inline-grid;
    width: 48px;
    height: 48px;
    place-items: center;
    border-radius: 8px;
    color: #fff;
    background: var(--tz-secondary);
}

.quantity-input {
    max-width: 110px;
}

.product-info-list {
    display: grid;
    gap: 10px;
}

.product-info-list div {
    display: flex;
    gap: 10px;
    align-items: center;
    color: var(--tz-muted);
}

.spec-table {
    display: grid;
    gap: 0;
    overflow: hidden;
    border: 1px solid var(--tz-border);
    border-radius: 8px;
}

.spec-row {
    display: grid;
    grid-template-columns: minmax(120px, 0.8fr) 1.2fr;
    gap: 16px;
    padding: 12px 14px;
    background: #fff;
}

.spec-row + .spec-row {
    border-top: 1px solid var(--tz-border);
}

.spec-row span {
    color: var(--tz-muted);
}

.footer {
    color: #cbd5e1;
    background: var(--tz-dark);
}

.footer a:hover {
    color: var(--tz-accent);
}

.admin-body {
    background: #eef2f7;
}

.admin-shell {
    display: grid;
    min-height: 100vh;
    grid-template-columns: 260px 1fr;
}

.admin-sidebar {
    color: #e5e7eb;
    background: #0f172a;
}

.admin-sidebar .nav-link {
    color: #cbd5e1;
    border-radius: 8px;
}

.admin-sidebar .nav-link:hover,
.admin-sidebar .nav-link.active {
    color: #fff;
    background: rgba(37, 99, 235, 0.28);
}

.admin-content {
    min-width: 0;
}

.admin-topbar {
    border-bottom: 1px solid var(--tz-border);
    background: #fff;
}

.form-card {
    border: 1px solid var(--tz-border);
    border-radius: 8px;
    background: #fff;
}