:root {
    --bg: #0f172a;
    --card: #0b1220;
    --muted: #94a3b8;
    --accent: #f97316;
    --max-w: 1200px;
    --section-alt: rgba(255, 255, 255, 0.015);
    font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
    color-scheme: dark;
}

* {
    box-sizing: border-box;
}

html, body {
    height: 100%;
}

body {
    margin: 0;
    background: var(--bg);
    color: #e6eef8;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.45;
    font-size: 16px;
}

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

img {
    max-width: 100%;
    display: block;
    height: auto;
}

.container {
    width: clamp(280px, 90%, var(--max-w));
    margin: 0 auto;
    padding: 0 1rem;
}

header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(8px);
    background: linear-gradient(180deg, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.9));
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.75rem 0;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-logo {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.03);
    display: inline-grid;
    place-items: center;
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--accent);
}

nav ul {
    display: flex;
    gap: 0.75rem;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
}

nav a {
    display: inline-block;
    padding: 0.5rem 0.7rem;
    border-radius: 8px;
    color: var(--muted);
    font-weight: 600;
    transition: all 0.2s ease;
}

nav a:hover,
nav a:focus {
    color: #fff;
    background: rgba(249, 115, 22, 0.1);
    outline: none;
}

.menu-toggle {
    display: none;
    background: none;
    border: 0;
    color: var(--muted);
    font-weight: 700;
    padding: 0.5rem;
    border-radius: 6px;
    cursor: pointer;
}

.menu-toggle:hover {
    background: rgba(255, 255, 255, 0.05);
}

main {
    padding-top: 80px;
}

@media (max-width: 880px) {
    nav ul {
        position: fixed;
        left: 0;
        right: 0;
        top: 80px;
        max-height: calc(100vh - 80px);
        margin: 0;
        padding: 1rem;
        background: linear-gradient(180deg, rgba(15, 23, 42, 0.98), rgba(15, 23, 42, 0.95));
        backdrop-filter: blur(8px);
        flex-direction: column;
        align-items: stretch;
        box-shadow: 0 8px 40px rgba(0, 0, 0, 0.3);
        transform: translateY(-100%);
        transition: transform 0.3s cubic-bezier(0.2, 0.9, 0.2, 1), opacity 0.2s ease;
        opacity: 0;
        pointer-events: none;
        overflow: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: calc(env(safe-area-inset-bottom) + 1rem);
    }

    nav ul.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    nav ul a {
        padding: 1rem;
        border-radius: 8px;
        display: block;
        text-align: center;
    }

    .menu-toggle {
        display: inline-block;
    }
}

section {
    padding: 3rem 0;
    position: relative;
}

.hero {
    padding: 10.25rem 0;
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 2rem;
    align-items: center;
    background: transparent;
}

#why-us {
    background: var(--section-alt);
    border-top: 1px solid rgba(255, 255, 255, 0.02);
}

#products {
    background: transparent;
    border-top: 1px solid rgba(255, 255, 255, 0.02);
}

section[aria-labelledby="shipping-heading"] {
    background: var(--section-alt);
    border-top: 1px solid rgba(255, 255, 255, 0.02);
}

#warranty {
    background: transparent;
    border-top: 1px solid rgba(255, 255, 255, 0.02);
}

#reviews {
    background: var(--section-alt);
    border-top: 1px solid rgba(255, 255, 255, 0.02);
}

#about {
    background: var(--section-alt);
    border-top: 1px solid rgba(255, 255, 255, 0.02);
}

#contact {
    background: transparent;
    border-top: 1px solid rgba(255, 255, 255, 0.02);
}

.hero h1 {
    font-size: clamp(1.6rem, 3.6vw, 2.6rem);
    margin: 0 0 0.5rem 0;
}

.hero p.lead {
    color: var(--muted);
    margin: 0 0 1.25rem 0;
    font-size: 1.03rem;
}

.cta-row {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1rem;
    border-radius: 12px;
    border: 0;
    font-weight: 700;
    cursor: pointer;
    background: linear-gradient(90deg, var(--accent), #ffb86b);
    color: #061224;
    box-shadow: 0 6px 18px rgba(249, 115, 22, 0.12);
    transition: transform 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn.secondary {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--muted);
    font-weight: 600;
    box-shadow: none;
}

.btn.secondary:hover {
    border-color: rgba(255, 255, 255, 0.3);
    color: #fff;
}

.hero-visual {
    border-radius: 12px;
    padding: 1rem;
    display: grid;
    place-items: center;
    min-height: 240px;
}

.card {
    padding: 1rem;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, 0.03);
}

.card img {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-radius: 6px;
    margin-bottom: 0.5rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 0.5rem;
}

th, td {
    padding: 0.6rem;
    border: 1px solid rgba(255, 255, 255, 0.04);
    text-align: left;
}

thead th {
    background: rgba(255, 255, 255, 0.02);
}

.note {
    font-size: 0.95rem;
    color: var(--muted);
    margin-top: 0.75rem;
}

.two-col {
    display: grid;
    grid-template-columns: 1fr 360px;
    gap: 1rem;
    align-items: start;
}

@media (max-width: 880px) {
    .two-col {
        grid-template-columns: 1fr;
    }
}

.section-title {
    display: flex;
    align-items: end;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.section-title h2 {
    margin: 0;
    font-size: 1.25rem;
}

.muted {
    color: var(--muted);
    font-size: 0.95rem;
}

.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.feature {
    background: var(--card);
    padding: 1.25rem;
    border-radius: 12px;
    min-height: 140px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    box-shadow: 0 4px 18px rgba(2, 6, 23, 0.6);
}

.feature h3 {
    margin: 0.25rem 0 0.5rem 0;
    font-size: 1rem;
}

.feature p {
    margin: 0;
    color: var(--muted);
    font-size: 0.95rem;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
}

.product {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
    padding: 1rem;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-height: 260px;
}

.product .meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.95rem;
    color: var(--muted);
}

.product h3 {
    margin: 0.25rem 0;
    font-size: 1.05rem;
}

.product p {
    margin: 0;
    color: var(--muted);
    flex: 1;
}

footer {
    padding: 2rem 0;
    color: var(--muted);
    border-top: 1px solid rgba(255, 255, 255, 0.02);
    background: var(--section-alt);
}

.footer-grid {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
}

@media (max-width: 1100px) {
    .hero {
        grid-template-columns: 1fr 1fr;
    }

    .features,
    .products-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .hero {
        grid-template-columns: 1fr;
        gap: 1.25rem;
        padding: 2rem 0;
    }

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

    .brand-logo {
        width: 38px;
        height: 38px;
    }

    main {
        padding-top: 70px;
    }
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.icon {
    text-align: center;
    font-size: 3rem;
}

.text-center {
    text-align: center;
}

#testimonials {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.85));
    padding: 4rem 0;
    overflow: hidden;
}

.testimonials-carousel {
    display: flex;
    gap: 1.5rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding-bottom: 1rem;
    justify-content: center;
    -webkit-overflow-scrolling: touch;
}

.testimonial {
    flex: 0 0 320px;
    background: rgba(11, 18, 32, 0.8);
    border-radius: 16px;
    padding: 2rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
    scroll-snap-align: center;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.testimonial:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.7);
}

.user-info {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.user-pic {
    font-size: 2.5rem;
}

.user-name {
    font-weight: 700;
}

.user-role {
    font-size: 0.85rem;
    color: var(--muted);
}

.testimonials-carousel::-webkit-scrollbar {
    height: 6px;
}

.testimonials-carousel::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 3px;
}

#tech .section-title h2 { margin:0; }
.badge-small { background: linear-gradient(90deg,var(--accent),#ffb86b); color:#061224; padding:.25rem .5rem; border-radius:999px; font-weight:700; font-size:.85rem; }

.tech-grid {
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:1rem;
    margin-top:1rem;
}
.tech-card{
    background: linear-gradient(180deg, rgba(255,255,255,0.015), rgba(255,255,255,0.01));
    border-radius:12px;
    padding:1rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.45);
    transition: transform .2s ease, box-shadow .2s ease;
    display:flex;
    flex-direction:column;
    gap:.6rem;
    min-height:220px;
}
.tech-card:focus,
.tech-card:hover{ transform:translateY(-6px); box-shadow: 0 18px 40px rgba(0,0,0,0.6); outline: none; }

.tc-head{display:flex;gap:.75rem;align-items:center}
.tc-icon{color:var(--accent); flex:0 0 40px;}
.tc-head h3{margin:0;font-size:1.02rem}
.tc-body .small{margin:0;color:var(--muted);font-size:0.95rem}
.tech-list{margin:.6rem 0 0 0;padding-left:1.05rem;color:var(--muted);font-size:0.95rem}
.metrics{display:flex;gap:1rem;margin-top:.5rem}
.metric{background:rgba(255,255,255,0.02);padding:.5rem .7rem;border-radius:8px;min-width:88px;text-align:center}
.metric-value{font-weight:800;font-size:1.15rem}

@media (max-width:1100px){
    .tech-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
    .tech-grid{grid-template-columns:1fr}
    .tech-card{min-height:unset}
}


.container{width:clamp(280px,90%,var(--max-w));margin:0 auto;padding:1.25rem}
.header{display:flex;align-items:center;justify-content:space-between;padding:1rem 0}
.brand-logo{width:44px;height:44px;border-radius:10px;background:rgba(255,255,255,0.03);display:grid;place-items:center;color:var(--accent);font-weight:700}
.back{color:var(--muted);font-weight:600}
.products-grid{
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
    margin-top: 1rem;
    justify-items: center;
}
.product{
    width: 100%;
    max-width: 420px;
    background: linear-gradient(180deg, rgba(255,255,255,0.015), rgba(255,255,255,0.01));
    padding: 1rem;
    border-radius: 12px;
    display:flex;
    flex-direction:column;
    gap:.6rem;
    align-items:center;
    text-align:center;
    box-shadow: 0 6px 18px rgba(0,0,0,0.45);
}
.product h3{margin:.25rem 0;font-size:1rem}
.product p{color:var(--muted);font-size:.95rem;margin:0}
.empty{padding:2rem;background:rgba(255,255,255,0.02);border-radius:10px;color:var(--muted)}


.container{width:clamp(280px,90%,var(--max-w));margin:0 auto;padding:1.25rem}
.header{display:flex;align-items:center;justify-content:space-between;padding:1rem 0}
.brand{display:flex;align-items:center;gap:.75rem}
.brand-logo{width:44px;height:44px;border-radius:10px;background:rgba(255,255,255,0.03);display:grid;place-items:center;color:var(--accent);font-weight:700}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1rem;margin-top:1.25rem}
.category{
    background:linear-gradient(180deg, rgba(255,255,255,0.015), rgba(255,255,255,0.01));
    border-radius:12px;padding:1.25rem;display:flex;flex-direction:column;gap:.75rem;align-items:center;justify-content:center;
    box-shadow:0 6px 18px rgba(0,0,0,0.5);transition:transform .18s ease,box-shadow .18s ease;
}
.category:hover{transform:translateY(-6px);box-shadow:0 14px 30px rgba(0,0,0,0.6)}
.cat-icon{font-size:2.4rem}
.cat-name{font-weight:700;margin-top:.25rem}
.cat-count{color:var(--muted);font-size:.95rem}
.footer{margin-top:2rem;color:var(--muted);font-size:.9rem;text-align:center;padding-bottom:2rem}
.badge{background:linear-gradient(90deg,var(--accent),#ffb86b);color:#061224;padding:.35rem .6rem;border-radius:999px;font-weight:700;font-size:.85rem}
@media (max-width:640px){
    .grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr))}
}