Pages Medium
Shop — Electronics / Tech Store Landing
A dark, electric-blue electronics storefront landing built with vanilla HTML, CSS, and JS. It pairs a floating SVG flagship headset hero with key specs, a lightning-deals row with a live countdown, three comparison tiers you can select by click or keyboard, spec-highlight tiles with counters that animate into view, and a working slide-in cart with quantity controls plus an email-capture form. Techy glow accents, a crisp grid, and fully responsive layout.
Open in Lab
MCP
html css vanilla-js
Targets: JS HTML
Code
/* ============================================================
Voltaic — Electronics / Tech Store Landing
Dark + electric blue, spec-forward, glow accents
============================================================ */
:root {
--bg: #070a12;
--bg-2: #0c1120;
--panel: #111829;
--panel-2: #161f33;
--ink: #eef2fb;
--ink-soft: #c5cee0;
--muted: #8893ab;
--brand: #5b8cff;
--brand-d: #3a63e0;
--cyan: #22d3ee;
--sale: #ff5c7a;
--ok: #34d399;
--line: rgba(160, 180, 230, 0.14);
--line-2: rgba(160, 180, 230, 0.08);
--glow: rgba(91, 140, 255, 0.45);
--radius: 16px;
--radius-sm: 10px;
--shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
--maxw: 1180px;
--ease: cubic-bezier(0.22, 1, 0.36, 1);
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
margin: 0;
font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
background:
radial-gradient(1200px 600px at 75% -10%, rgba(91, 140, 255, 0.16), transparent 60%),
radial-gradient(900px 500px at 5% 5%, rgba(34, 211, 238, 0.10), transparent 55%),
var(--bg);
color: var(--ink);
line-height: 1.55;
-webkit-font-smoothing: antialiased;
-moz-osx-font-smoothing: grayscale;
font-feature-settings: "cv11", "ss01";
overflow-x: hidden;
}
h1, h2, h3 { line-height: 1.12; letter-spacing: -0.02em; margin: 0; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
img, svg { display: block; }
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }
.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;
}
.skip-link {
position: absolute; left: 12px; top: -48px; z-index: 200;
background: var(--brand); color: #fff; padding: 10px 16px; border-radius: 8px;
font-weight: 600; transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 12px; }
:focus-visible {
outline: 2px solid var(--cyan);
outline-offset: 3px;
border-radius: 6px;
}
/* ---------- Buttons ---------- */
.btn {
--b: var(--brand);
appearance: none; border: 0; cursor: pointer;
font: inherit; font-weight: 700; letter-spacing: -0.01em;
padding: 13px 22px; border-radius: 12px; color: #fff;
background: var(--b);
transition: transform 0.15s var(--ease), box-shadow 0.25s var(--ease), background 0.2s;
display: inline-flex; align-items: center; justify-content: center; gap: 8px;
}
.btn-primary {
background: linear-gradient(135deg, var(--brand), var(--brand-d));
box-shadow: 0 8px 24px -6px var(--glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 32px -6px var(--glow); }
.btn-primary:active { transform: translateY(0); }
.btn-soft {
background: var(--panel-2);
color: var(--ink);
border: 1px solid var(--line);
}
.btn-soft:hover { background: #1c2741; border-color: var(--brand); }
.btn-block { width: 100%; }
.btn.added { background: linear-gradient(135deg, var(--ok), #16a34a); }
.icon-btn {
appearance: none; border: 1px solid var(--line); background: var(--panel);
color: var(--ink-soft); width: 42px; height: 42px; border-radius: 11px;
display: inline-grid; place-items: center; cursor: pointer; position: relative;
transition: border-color 0.2s, color 0.2s, transform 0.15s var(--ease);
}
.icon-btn:hover { color: var(--ink); border-color: var(--brand); transform: translateY(-1px); }
/* ---------- Header ---------- */
.site-header {
position: sticky; top: 0; z-index: 80;
backdrop-filter: blur(14px);
background: rgba(7, 10, 18, 0.72);
border-bottom: 1px solid var(--line-2);
}
.header-inner {
display: flex; align-items: center; gap: 24px;
height: 68px;
}
.brand { display: inline-flex; align-items: center; gap: 9px; font-weight: 800; }
.brand-mark { filter: drop-shadow(0 0 8px var(--glow)); }
.brand-name { font-size: 1.18rem; letter-spacing: -0.02em; }
.main-nav { display: flex; gap: 6px; margin-left: 12px; }
.main-nav a {
color: var(--ink-soft); font-weight: 500; font-size: 0.94rem;
padding: 8px 13px; border-radius: 9px; transition: color 0.2s, background 0.2s;
}
.main-nav a:hover { color: var(--ink); background: var(--panel); }
.header-actions { margin-left: auto; display: flex; gap: 10px; }
.cart-btn { color: var(--ink); }
.cart-count {
position: absolute; top: -6px; right: -6px;
min-width: 19px; height: 19px; padding: 0 5px;
background: linear-gradient(135deg, var(--cyan), var(--brand));
color: #051018; font-size: 0.7rem; font-weight: 800;
border-radius: 999px; display: grid; place-items: center;
border: 2px solid var(--bg);
transform: scale(0); transition: transform 0.25s var(--ease);
}
.cart-count.show { transform: scale(1); }
/* ---------- Hero ---------- */
.hero { position: relative; padding: 64px 0 30px; overflow: hidden; }
.hero-glow {
position: absolute; inset: -10% 0 auto auto; width: 620px; height: 620px;
right: -120px; top: -120px;
background: radial-gradient(circle, var(--glow), transparent 62%);
filter: blur(30px); pointer-events: none; z-index: 0;
}
.hero-grid {
position: relative; z-index: 1;
display: grid; grid-template-columns: 1.05fr 0.95fr;
gap: 40px; align-items: center;
}
.eyebrow {
display: inline-flex; align-items: center; gap: 8px;
font-size: 0.82rem; font-weight: 600; letter-spacing: 0.02em;
color: var(--cyan); text-transform: uppercase;
background: rgba(34, 211, 238, 0.08); border: 1px solid rgba(34, 211, 238, 0.22);
padding: 6px 13px; border-radius: 999px; margin-bottom: 18px;
}
.eyebrow .dot {
width: 7px; height: 7px; border-radius: 50%; background: var(--cyan);
box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.6); animation: pulse 2s infinite;
}
@keyframes pulse {
0% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0.55); }
70% { box-shadow: 0 0 0 8px rgba(34, 211, 238, 0); }
100% { box-shadow: 0 0 0 0 rgba(34, 211, 238, 0); }
}
.hero h1 { font-size: clamp(2.3rem, 5.4vw, 3.8rem); font-weight: 900; }
.grad-text {
background: linear-gradient(100deg, var(--brand) 10%, var(--cyan) 90%);
-webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub {
color: var(--ink-soft); font-size: 1.08rem; max-width: 46ch;
margin: 18px 0 24px;
}
.hero-specs { display: flex; gap: 28px; margin-bottom: 28px; flex-wrap: wrap; }
.hero-specs li { display: flex; flex-direction: column; }
.hero-specs strong { font-size: 1.5rem; font-weight: 800; letter-spacing: -0.03em; }
.hero-specs span { color: var(--muted); font-size: 0.82rem; }
.hero-cta { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.price-block { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.price { font-size: 1.85rem; font-weight: 800; letter-spacing: -0.03em; }
.price-was { color: var(--muted); text-decoration: line-through; font-size: 1.05rem; }
.badge-save {
background: rgba(255, 92, 122, 0.14); color: var(--sale);
font-size: 0.74rem; font-weight: 700; padding: 4px 9px; border-radius: 999px;
border: 1px solid rgba(255, 92, 122, 0.3);
}
.trust-line {
display: inline-flex; align-items: center; gap: 8px;
color: var(--muted); font-size: 0.85rem; margin-top: 22px;
}
.trust-line svg { color: var(--ok); flex: none; }
/* hero stage / product */
.hero-stage {
position: relative; aspect-ratio: 1 / 0.95;
display: grid; place-items: center;
}
.stage-ring {
position: absolute; inset: 8%;
border-radius: 50%;
background:
radial-gradient(circle at 50% 45%, rgba(91, 140, 255, 0.22), transparent 58%);
border: 1px solid var(--line);
box-shadow: inset 0 0 90px rgba(91, 140, 255, 0.18);
}
.stage-ring::after {
content: ""; position: absolute; inset: 14%;
border-radius: 50%; border: 1px dashed rgba(160, 180, 230, 0.18);
animation: spin 28s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.hero-product {
position: relative; z-index: 2; width: 76%; max-width: 320px;
filter: drop-shadow(0 24px 40px rgba(0, 0, 0, 0.5));
animation: float 6s ease-in-out infinite;
}
@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
.stage-chip {
position: absolute; z-index: 3;
background: rgba(17, 24, 41, 0.85); backdrop-filter: blur(6px);
border: 1px solid var(--line); color: var(--ink-soft);
font-size: 0.76rem; font-weight: 600; padding: 7px 12px; border-radius: 999px;
box-shadow: var(--shadow);
}
.chip-tl { top: 14%; left: 2%; }
.chip-br { bottom: 16%; right: 0%; }
.logo-strip {
display: flex; flex-wrap: wrap; gap: 12px 28px;
justify-content: center; align-items: center;
margin-top: 44px; padding-top: 26px;
border-top: 1px solid var(--line-2);
color: var(--muted); font-size: 0.86rem; font-weight: 500;
max-width: var(--maxw); margin-left: auto; margin-right: auto;
padding-left: 22px; padding-right: 22px;
}
.logo-strip li:first-child { color: var(--ink-soft); }
/* ---------- Sections ---------- */
.section { padding: 70px 0; }
.section-dark { background: linear-gradient(180deg, var(--bg-2), var(--bg)); border-top: 1px solid var(--line-2); border-bottom: 1px solid var(--line-2); }
.section-head {
display: flex; align-items: flex-end; justify-content: space-between;
gap: 20px; margin-bottom: 36px; flex-wrap: wrap;
}
.section-head.center { justify-content: center; text-align: center; }
.section-head h2 { font-size: clamp(1.6rem, 3.6vw, 2.3rem); font-weight: 800; }
.section-sub { color: var(--muted); margin-top: 8px; font-size: 1rem; }
/* deal timer */
.deal-timer {
display: inline-flex; align-items: center; gap: 4px;
font-variant-numeric: tabular-nums; font-weight: 800; font-size: 1.05rem;
}
.deal-timer i { color: var(--muted); font-style: normal; }
.tseg {
background: var(--panel); border: 1px solid var(--line);
padding: 8px 11px; border-radius: 9px; min-width: 42px; text-align: center;
color: var(--cyan); box-shadow: inset 0 0 12px rgba(34, 211, 238, 0.08);
}
/* deals grid */
.deal-grid {
display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
}
.deal-card {
background: var(--panel); border: 1px solid var(--line);
border-radius: var(--radius); overflow: hidden;
transition: transform 0.25s var(--ease), border-color 0.25s, box-shadow 0.25s;
display: flex; flex-direction: column;
}
.deal-card:hover {
transform: translateY(-5px); border-color: var(--brand);
box-shadow: 0 20px 40px -16px var(--glow);
}
.deal-media {
position: relative; aspect-ratio: 4 / 3;
display: grid; place-items: center;
}
.deal-media svg { width: 52%; }
.tint-blue { background: radial-gradient(circle at 50% 40%, rgba(91, 140, 255, 0.22), var(--panel-2)); }
.tint-cyan { background: radial-gradient(circle at 50% 40%, rgba(34, 211, 238, 0.2), var(--panel-2)); }
.tint-violet { background: radial-gradient(circle at 50% 40%, rgba(167, 139, 250, 0.22), var(--panel-2)); }
.stock-chip {
position: absolute; top: 12px; left: 12px;
font-size: 0.72rem; font-weight: 700; padding: 4px 9px; border-radius: 999px;
background: rgba(52, 211, 153, 0.14); color: var(--ok);
border: 1px solid rgba(52, 211, 153, 0.28);
}
.stock-chip.low { background: rgba(255, 92, 122, 0.14); color: var(--sale); border-color: rgba(255, 92, 122, 0.3); }
.deal-body { padding: 16px 16px 18px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.deal-body h3 { font-size: 1.06rem; font-weight: 700; }
.rating { display: flex; align-items: center; gap: 8px; color: var(--muted); font-size: 0.82rem; }
.stars { color: #f5b53d; letter-spacing: 1px; }
.price-row { display: flex; align-items: baseline; gap: 9px; margin-top: 2px; }
.price-row .price { font-size: 1.25rem; }
.deal-body .btn { margin-top: auto; }
/* ---------- Compare ---------- */
.compare-grid {
display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
max-width: 980px; margin: 0 auto;
}
.compare-card {
position: relative; cursor: pointer;
background: var(--panel); border: 1px solid var(--line);
border-radius: var(--radius); padding: 26px 24px;
transition: transform 0.25s var(--ease), border-color 0.25s, box-shadow 0.25s;
}
.compare-card:hover { transform: translateY(-4px); border-color: var(--brand); }
.compare-card.featured {
border-color: var(--brand);
background: linear-gradient(180deg, rgba(91, 140, 255, 0.1), var(--panel));
box-shadow: 0 24px 50px -18px var(--glow);
}
.compare-card[aria-checked="true"] {
border-color: var(--cyan);
box-shadow: 0 0 0 1px var(--cyan), 0 24px 50px -18px var(--glow);
}
.ribbon {
position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
background: linear-gradient(135deg, var(--brand), var(--cyan));
color: #051018; font-size: 0.72rem; font-weight: 800;
padding: 5px 13px; border-radius: 999px; white-space: nowrap;
}
.compare-card h3 { font-size: 1.25rem; font-weight: 800; margin-bottom: 6px; }
.compare-price { display: flex; align-items: baseline; gap: 6px; margin-bottom: 18px; }
.compare-price span { font-size: 2rem; font-weight: 800; letter-spacing: -0.03em; }
.compare-price small { color: var(--muted); font-size: 0.82rem; }
.feat-list { display: flex; flex-direction: column; gap: 11px; margin-bottom: 20px; }
.feat-list li {
position: relative; padding-left: 28px; font-size: 0.92rem; color: var(--ink-soft);
}
.feat-list li::before {
content: ""; position: absolute; left: 0; top: 2px;
width: 18px; height: 18px; border-radius: 50%;
background-size: 12px; background-repeat: no-repeat; background-position: center;
}
.feat-list li.yes::before {
background-color: rgba(52, 211, 153, 0.16);
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 13l4 4L19 7' fill='none' stroke='%2334d399' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
.feat-list li.no { color: var(--muted); }
.feat-list li.no::before {
background-color: rgba(136, 147, 171, 0.12);
background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M7 7l10 10M17 7L7 17' fill='none' stroke='%238893ab' stroke-width='3' stroke-linecap='round'/%3E%3C/svg%3E");
}
.select-hint {
display: block; text-align: center; font-weight: 700; font-size: 0.9rem;
color: var(--brand); padding: 10px; border-radius: 10px;
border: 1px solid var(--line); transition: background 0.2s, color 0.2s;
}
.compare-card[aria-checked="true"] .select-hint { background: var(--cyan); color: #051018; border-color: var(--cyan); }
.compare-cta {
display: flex; align-items: center; justify-content: center; gap: 22px;
margin-top: 34px; flex-wrap: wrap; text-align: center;
}
.compare-cta p { color: var(--ink-soft); }
.compare-cta strong { color: var(--ink); }
/* ---------- Spec counters ---------- */
.spec-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.spec-tile {
background: var(--panel); border: 1px solid var(--line);
border-radius: var(--radius); padding: 28px 22px;
position: relative; overflow: hidden;
}
.spec-tile::before {
content: ""; position: absolute; inset: 0 auto auto 0; width: 100%; height: 3px;
background: linear-gradient(90deg, var(--brand), var(--cyan));
opacity: 0.85;
}
.spec-num {
font-size: clamp(2.2rem, 4vw, 3rem); font-weight: 900; letter-spacing: -0.04em;
background: linear-gradient(120deg, var(--ink), var(--brand));
-webkit-background-clip: text; background-clip: text; color: transparent;
font-variant-numeric: tabular-nums;
}
.spec-label { font-weight: 700; margin-top: 6px; }
.spec-desc { color: var(--muted); font-size: 0.88rem; margin-top: 6px; }
/* ---------- Final CTA ---------- */
.cta-band {
position: relative; padding: 80px 0; overflow: hidden;
text-align: center;
background: linear-gradient(180deg, var(--bg), var(--bg-2));
border-top: 1px solid var(--line-2);
}
.cta-glow {
position: absolute; left: 50%; top: -40%; transform: translateX(-50%);
width: 700px; height: 500px;
background: radial-gradient(circle, var(--glow), transparent 60%);
filter: blur(20px); pointer-events: none;
}
.cta-inner { position: relative; z-index: 1; max-width: 620px; }
.cta-band h2 { font-size: clamp(1.8rem, 4vw, 2.6rem); font-weight: 900; }
.cta-band > .wrap > p, .cta-inner > p { color: var(--ink-soft); margin-top: 12px; }
.cta-form {
display: flex; gap: 10px; margin: 26px auto 0; max-width: 460px;
flex-wrap: wrap; justify-content: center; position: relative;
}
.cta-form input {
flex: 1 1 240px; min-width: 0;
background: var(--panel); border: 1px solid var(--line);
color: var(--ink); font: inherit; padding: 13px 16px; border-radius: 12px;
transition: border-color 0.2s, box-shadow 0.2s;
}
.cta-form input::placeholder { color: var(--muted); }
.cta-form input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(91, 140, 255, 0.2); outline: none; }
.cta-form input.invalid { border-color: var(--sale); box-shadow: 0 0 0 3px rgba(255, 92, 122, 0.2); }
.form-error {
flex-basis: 100%; color: var(--sale); font-size: 0.84rem; margin-top: 2px;
}
.cta-fine { color: var(--muted); font-size: 0.82rem; margin-top: 16px; }
/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line-2); padding: 30px 0; }
.footer-inner {
display: flex; align-items: center; justify-content: space-between;
gap: 16px; flex-wrap: wrap;
}
.footer-brand { font-weight: 800; }
.footer-nav { display: flex; gap: 18px; }
.footer-nav a { color: var(--muted); font-size: 0.9rem; transition: color 0.2s; }
.footer-nav a:hover { color: var(--ink); }
.footer-note { color: var(--muted); font-size: 0.82rem; width: 100%; text-align: center; padding-top: 6px; border-top: 1px solid var(--line-2); margin-top: 6px; }
/* ---------- Cart drawer ---------- */
.drawer-overlay {
position: fixed; inset: 0; z-index: 90;
background: rgba(3, 6, 14, 0.6); backdrop-filter: blur(2px);
animation: fade 0.25s var(--ease);
}
@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
.cart-drawer {
position: fixed; top: 0; right: 0; bottom: 0; z-index: 100;
width: min(400px, 92vw);
background: var(--bg-2); border-left: 1px solid var(--line);
display: flex; flex-direction: column;
transform: translateX(105%); transition: transform 0.35s var(--ease);
box-shadow: -20px 0 60px rgba(0, 0, 0, 0.5);
}
.cart-drawer.open { transform: translateX(0); }
.drawer-head {
display: flex; align-items: center; justify-content: space-between;
padding: 20px; border-bottom: 1px solid var(--line);
}
.drawer-head h2 { font-size: 1.2rem; font-weight: 800; }
.drawer-body { flex: 1; overflow-y: auto; padding: 16px 20px; }
.cart-empty { color: var(--muted); text-align: center; padding: 40px 10px; }
.cart-item {
display: grid; grid-template-columns: 48px 1fr auto; gap: 12px;
align-items: center; padding: 14px 0; border-bottom: 1px solid var(--line-2);
}
.cart-item-thumb {
width: 48px; height: 48px; border-radius: 10px;
background: radial-gradient(circle at 50% 40%, rgba(91, 140, 255, 0.3), var(--panel-2));
display: grid; place-items: center; font-size: 1.2rem;
}
.cart-item-info h4 { font-size: 0.92rem; font-weight: 600; margin: 0; }
.cart-item-info .ci-price { color: var(--muted); font-size: 0.82rem; }
.qty-ctl { display: inline-flex; align-items: center; gap: 8px; margin-top: 6px; }
.qty-ctl button {
width: 24px; height: 24px; border-radius: 7px; border: 1px solid var(--line);
background: var(--panel); color: var(--ink); cursor: pointer; font-weight: 700;
display: grid; place-items: center; line-height: 1;
}
.qty-ctl button:hover { border-color: var(--brand); }
.qty-ctl span { min-width: 18px; text-align: center; font-variant-numeric: tabular-nums; font-size: 0.9rem; }
.ci-remove {
background: none; border: 0; color: var(--muted); cursor: pointer;
font-size: 0.78rem; padding: 2px; text-decoration: underline;
}
.ci-remove:hover { color: var(--sale); }
.ci-line { font-weight: 700; font-variant-numeric: tabular-nums; }
.drawer-foot { padding: 18px 20px 22px; border-top: 1px solid var(--line); }
.drawer-total { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 14px; }
.drawer-total span { color: var(--muted); }
.drawer-total strong { font-size: 1.5rem; font-weight: 800; font-variant-numeric: tabular-nums; }
.drawer-fine { color: var(--muted); font-size: 0.78rem; text-align: center; margin-top: 12px; }
/* ---------- Toast ---------- */
.toast {
position: fixed; left: 50%; bottom: 28px; transform: translate(-50%, 24px);
z-index: 150; background: var(--panel); color: var(--ink);
border: 1px solid var(--brand); border-radius: 12px;
padding: 13px 20px; font-weight: 600; font-size: 0.92rem;
box-shadow: var(--shadow); opacity: 0; pointer-events: none;
transition: opacity 0.3s var(--ease), transform 0.3s var(--ease);
display: flex; align-items: center; gap: 9px; max-width: 90vw;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast::before { content: "⚡"; }
/* ---------- Responsive ---------- */
@media (max-width: 980px) {
.hero-grid { grid-template-columns: 1fr; gap: 24px; }
.hero-stage { order: -1; max-width: 380px; margin: 0 auto; width: 100%; }
.deal-grid { grid-template-columns: repeat(2, 1fr); }
.spec-grid { grid-template-columns: repeat(2, 1fr); }
.compare-grid { grid-template-columns: 1fr; max-width: 420px; }
.compare-card.featured { order: -1; }
}
@media (max-width: 720px) {
.main-nav { display: none; }
}
@media (max-width: 560px) {
.hero { padding: 40px 0 20px; }
.deal-grid { grid-template-columns: 1fr; }
.spec-grid { grid-template-columns: 1fr; }
.section { padding: 50px 0; }
.section-head { margin-bottom: 26px; }
.hero-cta { flex-direction: column; align-items: stretch; }
.hero-cta .btn { width: 100%; }
.footer-inner { flex-direction: column; text-align: center; }
}
@media (prefers-reduced-motion: reduce) {
*, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.05ms !important; scroll-behavior: auto !important; }
}/* ============================================================
Voltaic — Electronics store landing
Vanilla JS: cart drawer, qty, compare selector,
animated counters, deal countdown, email validation
============================================================ */
(function () {
"use strict";
/* ---------- helpers ---------- */
var money = function (n) {
return "$" + Number(n).toLocaleString("en-US", { minimumFractionDigits: 2, maximumFractionDigits: 2 });
};
var toastEl = document.getElementById("toast");
var toastTimer;
function toast(msg) {
if (!toastEl) return;
toastEl.textContent = msg;
toastEl.classList.add("show");
clearTimeout(toastTimer);
toastTimer = setTimeout(function () { toastEl.classList.remove("show"); }, 2200);
}
/* ---------- cart state ---------- */
var cart = []; // { id, name, price, qty }
var cartCountEl = document.getElementById("cartCount");
var cartItemsEl = document.getElementById("cartItems");
var cartEmptyEl = document.getElementById("cartEmpty");
var cartTotalEl = document.getElementById("cartTotal");
var drawer = document.getElementById("cartDrawer");
var overlay = document.getElementById("drawerOverlay");
function findItem(id) {
for (var i = 0; i < cart.length; i++) if (cart[i].id === id) return cart[i];
return null;
}
function addToCart(id, name, price) {
var item = findItem(id);
if (item) {
item.qty += 1;
} else {
cart.push({ id: id, name: name, price: Number(price), qty: 1 });
}
renderCart();
bumpCount();
toast(name + " added to cart");
}
function setQty(id, delta) {
var item = findItem(id);
if (!item) return;
item.qty += delta;
if (item.qty <= 0) {
cart = cart.filter(function (c) { return c.id !== id; });
}
renderCart();
bumpCount();
}
function removeItem(id) {
cart = cart.filter(function (c) { return c.id !== id; });
renderCart();
bumpCount();
}
function totalQty() {
return cart.reduce(function (s, c) { return s + c.qty; }, 0);
}
function totalPrice() {
return cart.reduce(function (s, c) { return s + c.qty * c.price; }, 0);
}
function bumpCount() {
var q = totalQty();
if (!cartCountEl) return;
cartCountEl.textContent = String(q);
cartCountEl.classList.toggle("show", q > 0);
}
function renderCart() {
if (!cartItemsEl) return;
// clear everything except the empty message node
cartItemsEl.querySelectorAll(".cart-item").forEach(function (n) { n.remove(); });
if (cart.length === 0) {
if (cartEmptyEl) cartEmptyEl.hidden = false;
} else {
if (cartEmptyEl) cartEmptyEl.hidden = true;
var frag = document.createDocumentFragment();
cart.forEach(function (item) {
var row = document.createElement("div");
row.className = "cart-item";
row.innerHTML =
'<div class="cart-item-thumb" aria-hidden="true">🎧</div>' +
'<div class="cart-item-info">' +
"<h4></h4>" +
'<div class="ci-price"></div>' +
'<div class="qty-ctl">' +
'<button type="button" class="qty-dec" aria-label="Decrease quantity">−</button>' +
"<span></span>" +
'<button type="button" class="qty-inc" aria-label="Increase quantity">+</button>' +
'<button type="button" class="ci-remove">Remove</button>' +
"</div>" +
"</div>" +
'<div class="ci-line"></div>';
row.querySelector("h4").textContent = item.name;
row.querySelector(".ci-price").textContent = money(item.price) + " each";
row.querySelector(".qty-ctl span").textContent = String(item.qty);
row.querySelector(".ci-line").textContent = money(item.price * item.qty);
row.querySelector(".qty-dec").addEventListener("click", function () { setQty(item.id, -1); });
row.querySelector(".qty-inc").addEventListener("click", function () { setQty(item.id, 1); });
row.querySelector(".ci-remove").addEventListener("click", function () { removeItem(item.id); });
frag.appendChild(row);
});
cartItemsEl.appendChild(frag);
}
if (cartTotalEl) cartTotalEl.textContent = money(totalPrice());
}
/* ---------- drawer open/close ---------- */
function openDrawer() {
if (!drawer) return;
drawer.classList.add("open");
drawer.setAttribute("aria-hidden", "false");
if (overlay) overlay.hidden = false;
document.body.style.overflow = "hidden";
var closeBtn = document.getElementById("closeCart");
if (closeBtn) closeBtn.focus();
}
function closeDrawer() {
if (!drawer) return;
drawer.classList.remove("open");
drawer.setAttribute("aria-hidden", "true");
if (overlay) overlay.hidden = true;
document.body.style.overflow = "";
}
var cartBtn = document.getElementById("cartBtn");
var closeCart = document.getElementById("closeCart");
if (cartBtn) cartBtn.addEventListener("click", openDrawer);
if (closeCart) closeCart.addEventListener("click", closeDrawer);
if (overlay) overlay.addEventListener("click", closeDrawer);
document.addEventListener("keydown", function (e) {
if (e.key === "Escape") closeDrawer();
});
var searchBtn = document.getElementById("searchBtn");
if (searchBtn) searchBtn.addEventListener("click", function () {
toast("Search is demo-only — browse the deals below");
});
var checkoutBtn = document.getElementById("checkoutBtn");
if (checkoutBtn) checkoutBtn.addEventListener("click", function () {
if (cart.length === 0) { toast("Add an item first"); return; }
toast("Checkout is illustrative only ✨");
});
/* ---------- add-to-cart buttons (delegated) ---------- */
document.addEventListener("click", function (e) {
var btn = e.target.closest(".add-cart");
if (!btn) return;
var id = btn.getAttribute("data-id");
var name = btn.getAttribute("data-name");
var price = btn.getAttribute("data-price");
addToCart(id, name, price);
// brief confirmation state
if (!btn.classList.contains("added")) {
var orig = btn.textContent;
btn.classList.add("added");
btn.textContent = "Added ✓";
setTimeout(function () {
btn.classList.remove("added");
btn.textContent = orig;
}, 1100);
}
});
/* ---------- compare selector ---------- */
var compareCards = Array.prototype.slice.call(document.querySelectorAll(".compare-card"));
var selectedNameEl = document.getElementById("selectedName");
var selectedPriceEl = document.getElementById("selectedPrice");
var compareAdd = document.getElementById("compareAdd");
function selectCompare(card) {
compareCards.forEach(function (c) {
var on = c === card;
c.setAttribute("aria-checked", on ? "true" : "false");
var hint = c.querySelector(".select-hint");
if (hint) hint.textContent = on ? "Selected" : "Select";
});
var name = card.getAttribute("data-name");
var price = card.getAttribute("data-price");
if (selectedNameEl) selectedNameEl.textContent = name;
if (selectedPriceEl) selectedPriceEl.textContent = money(price);
if (compareAdd) {
compareAdd.setAttribute("data-id", card.getAttribute("data-id"));
compareAdd.setAttribute("data-name", name);
compareAdd.setAttribute("data-price", price);
}
}
compareCards.forEach(function (card) {
card.addEventListener("click", function () { selectCompare(card); });
card.addEventListener("keydown", function (e) {
if (e.key === "Enter" || e.key === " ") {
e.preventDefault();
selectCompare(card);
}
// arrow navigation within radiogroup
if (e.key === "ArrowRight" || e.key === "ArrowDown" || e.key === "ArrowLeft" || e.key === "ArrowUp") {
e.preventDefault();
var idx = compareCards.indexOf(card);
var dir = (e.key === "ArrowRight" || e.key === "ArrowDown") ? 1 : -1;
var next = compareCards[(idx + dir + compareCards.length) % compareCards.length];
next.focus();
selectCompare(next);
}
});
});
/* ---------- animated counters (IntersectionObserver) ---------- */
function animateCount(el) {
var target = parseFloat(el.getAttribute("data-target")) || 0;
var prefix = el.getAttribute("data-prefix") || "";
var suffix = el.getAttribute("data-suffix") || "";
var dur = 1400;
var start = null;
function step(ts) {
if (start === null) start = ts;
var p = Math.min((ts - start) / dur, 1);
// easeOutCubic
var eased = 1 - Math.pow(1 - p, 3);
var val = Math.round(eased * target);
el.textContent = prefix + val + suffix;
if (p < 1) requestAnimationFrame(step);
else el.textContent = prefix + target + suffix;
}
requestAnimationFrame(step);
}
var counters = Array.prototype.slice.call(document.querySelectorAll(".count"));
if ("IntersectionObserver" in window && counters.length) {
var io = new IntersectionObserver(function (entries) {
entries.forEach(function (entry) {
if (entry.isIntersecting) {
animateCount(entry.target);
io.unobserve(entry.target);
}
});
}, { threshold: 0.4 });
counters.forEach(function (c) { io.observe(c); });
} else {
counters.forEach(function (c) {
c.textContent = (c.getAttribute("data-prefix") || "") + (c.getAttribute("data-target") || "") + (c.getAttribute("data-suffix") || "");
});
}
/* ---------- deal countdown ---------- */
var tH = document.getElementById("tH");
var tM = document.getElementById("tM");
var tS = document.getElementById("tS");
if (tH && tM && tS) {
// start 2h 0m 0s from now
var remaining = 2 * 3600;
var pad = function (n) { return String(n).padStart(2, "0"); };
var tick = function () {
if (remaining < 0) remaining = 2 * 3600; // loop for demo
var h = Math.floor(remaining / 3600);
var m = Math.floor((remaining % 3600) / 60);
var s = remaining % 60;
tH.textContent = pad(h);
tM.textContent = pad(m);
tS.textContent = pad(s);
remaining--;
};
tick();
setInterval(tick, 1000);
}
/* ---------- notify form ---------- */
var form = document.getElementById("notifyForm");
var emailInput = document.getElementById("ctaEmail");
var formError = document.getElementById("formError");
if (form && emailInput) {
var emailRe = /^[^\s@]+@[^\s@]+\.[^\s@]+$/;
form.addEventListener("submit", function (e) {
e.preventDefault();
var val = emailInput.value.trim();
if (!emailRe.test(val)) {
emailInput.classList.add("invalid");
if (formError) formError.hidden = false;
emailInput.focus();
return;
}
emailInput.classList.remove("invalid");
if (formError) formError.hidden = true;
emailInput.value = "";
toast("You're on the list — launch updates incoming");
});
emailInput.addEventListener("input", function () {
emailInput.classList.remove("invalid");
if (formError) formError.hidden = true;
});
}
// initial render
renderCart();
bumpCount();
})();<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<title>Voltaic — Electronics & Tech Store</title>
<link rel="preconnect" href="https://fonts.googleapis.com" />
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap" rel="stylesheet" />
<link rel="stylesheet" href="style.css" />
</head>
<body>
<a class="skip-link" href="#main">Skip to content</a>
<header class="site-header" role="banner">
<div class="wrap header-inner">
<a class="brand" href="#" aria-label="Voltaic home">
<svg class="brand-mark" viewBox="0 0 32 32" width="28" height="28" aria-hidden="true">
<path d="M18 2 6 18h7l-3 12 16-18h-8z" fill="url(#boltGrad)" />
<defs>
<linearGradient id="boltGrad" x1="0" y1="0" x2="1" y2="1">
<stop offset="0" stop-color="#5b8cff" />
<stop offset="1" stop-color="#22d3ee" />
</linearGradient>
</defs>
</svg>
<span class="brand-name">Voltaic</span>
</a>
<nav class="main-nav" aria-label="Primary">
<a href="#deals">Deals</a>
<a href="#compare">Compare</a>
<a href="#specs">Specs</a>
<a href="#cta">Support</a>
</nav>
<div class="header-actions">
<button class="icon-btn" id="searchBtn" type="button" aria-label="Search products">
<svg viewBox="0 0 24 24" width="20" height="20" aria-hidden="true"><circle cx="11" cy="11" r="7" fill="none" stroke="currentColor" stroke-width="2"/><line x1="16.5" y1="16.5" x2="21" y2="21" stroke="currentColor" stroke-width="2" stroke-linecap="round"/></svg>
</button>
<button class="icon-btn cart-btn" id="cartBtn" type="button" aria-label="Open cart">
<svg viewBox="0 0 24 24" width="20" height="20" aria-hidden="true"><path d="M3 4h2l2.5 12h10l2-8H6.5" fill="none" stroke="currentColor" stroke-width="2" stroke-linejoin="round" stroke-linecap="round"/><circle cx="9" cy="20" r="1.6" fill="currentColor"/><circle cx="18" cy="20" r="1.6" fill="currentColor"/></svg>
<span class="cart-count" id="cartCount" aria-live="polite">0</span>
</button>
</div>
</div>
</header>
<main id="main">
<!-- HERO -->
<section class="hero" aria-labelledby="heroTitle">
<div class="hero-glow" aria-hidden="true"></div>
<div class="wrap hero-grid">
<div class="hero-copy">
<p class="eyebrow"><span class="dot"></span> New flagship · Pulse X1</p>
<h1 id="heroTitle">The headset that<br><span class="grad-text">hears the future.</span></h1>
<p class="hero-sub">Adaptive spatial audio, 40-hour battery, and a titanium frame engineered for all-day flight. Tuned in our lab, dialed in your ears.</p>
<ul class="hero-specs">
<li><strong>40h</strong><span>Battery</span></li>
<li><strong>−48dB</strong><span>ANC depth</span></li>
<li><strong>0.2s</strong><span>Latency</span></li>
</ul>
<div class="hero-cta">
<div class="price-block">
<span class="price" id="heroPrice">$329.00</span>
<span class="price-was">$399.00</span>
<span class="badge-save">Save 18%</span>
</div>
<button class="btn btn-primary add-cart" type="button"
data-id="pulse-x1" data-name="Pulse X1 Headset" data-price="329">
Add to cart
</button>
</div>
<p class="trust-line">
<svg viewBox="0 0 24 24" width="15" height="15" aria-hidden="true"><path d="M12 2 4 5v6c0 5 3.4 8.5 8 11 4.6-2.5 8-6 8-11V5z" fill="none" stroke="currentColor" stroke-width="2" stroke-linejoin="round"/><path d="M9 12l2 2 4-4" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/></svg>
Secure checkout · Free 2-day shipping · 2-year warranty
</p>
</div>
<div class="hero-stage">
<div class="stage-ring" aria-hidden="true"></div>
<svg class="hero-product" viewBox="0 0 260 280" role="img" aria-label="Illustration of the Pulse X1 over-ear headset">
<defs>
<linearGradient id="cup" x1="0" y1="0" x2="1" y2="1">
<stop offset="0" stop-color="#2a3550"/>
<stop offset="1" stop-color="#0d1220"/>
</linearGradient>
<linearGradient id="band" x1="0" y1="0" x2="0" y2="1">
<stop offset="0" stop-color="#3b4a6b"/>
<stop offset="1" stop-color="#1a2237"/>
</linearGradient>
<radialGradient id="cupGlow" cx="0.5" cy="0.4" r="0.7">
<stop offset="0" stop-color="#5b8cff" stop-opacity="0.55"/>
<stop offset="1" stop-color="#5b8cff" stop-opacity="0"/>
</radialGradient>
</defs>
<path d="M40 150 C40 60 220 60 220 150" fill="none" stroke="url(#band)" stroke-width="20" stroke-linecap="round"/>
<path d="M40 150 C40 80 220 80 220 150" fill="none" stroke="#0d1220" stroke-width="6" stroke-linecap="round" opacity="0.6"/>
<g>
<rect x="18" y="140" width="56" height="100" rx="26" fill="url(#cup)"/>
<ellipse cx="46" cy="190" rx="20" ry="34" fill="#0a0e18"/>
<ellipse cx="46" cy="190" rx="20" ry="34" fill="url(#cupGlow)"/>
<circle cx="46" cy="190" r="6" fill="#22d3ee"/>
</g>
<g>
<rect x="186" y="140" width="56" height="100" rx="26" fill="url(#cup)"/>
<ellipse cx="214" cy="190" rx="20" ry="34" fill="#0a0e18"/>
<ellipse cx="214" cy="190" rx="20" ry="34" fill="url(#cupGlow)"/>
<circle cx="214" cy="190" r="6" fill="#22d3ee"/>
</g>
<rect x="200" y="170" width="3" height="40" rx="1.5" fill="#5b8cff" opacity="0.8"/>
</svg>
<span class="stage-chip chip-tl">Titanium frame</span>
<span class="stage-chip chip-br">USB-C · LDAC</span>
</div>
</div>
<ul class="logo-strip" aria-label="As reviewed by">
<li>★ 4.8 / 5 · 12,480 reviews</li>
<li>Editor's Choice 2026</li>
<li>Best Audio · TechWire</li>
<li>30-day returns</li>
</ul>
</section>
<!-- DEALS ROW -->
<section class="section" id="deals" aria-labelledby="dealsTitle">
<div class="wrap">
<div class="section-head">
<div>
<h2 id="dealsTitle">Today's lightning deals</h2>
<p class="section-sub">Limited stock. Prices reset at midnight.</p>
</div>
<div class="deal-timer" id="dealTimer" role="timer" aria-label="Time left on deals">
<span class="tseg" id="tH">02</span><i>:</i><span class="tseg" id="tM">00</span><i>:</i><span class="tseg" id="tS">00</span>
</div>
</div>
<div class="deal-grid" id="dealGrid">
<!-- cards injected / progressively enhanced; static fallback below -->
<article class="deal-card" data-id="aero-buds" data-name="Aero Buds Pro" data-price="129">
<div class="deal-media tint-blue">
<svg viewBox="0 0 80 80" aria-hidden="true"><rect x="20" y="14" width="16" height="40" rx="8" fill="#1a2237"/><rect x="44" y="14" width="16" height="40" rx="8" fill="#1a2237"/><circle cx="28" cy="22" r="4" fill="#22d3ee"/><circle cx="52" cy="22" r="4" fill="#22d3ee"/></svg>
<span class="stock-chip low">Only 6 left</span>
</div>
<div class="deal-body">
<h3>Aero Buds Pro</h3>
<p class="rating"><span class="stars" aria-hidden="true">★★★★★</span> <span>4.7 · 3.1k</span></p>
<p class="price-row"><span class="price">$129.00</span> <span class="price-was">$179.00</span></p>
<button class="btn btn-soft add-cart" type="button" data-id="aero-buds" data-name="Aero Buds Pro" data-price="129">Add to cart</button>
</div>
</article>
<article class="deal-card" data-id="watch-s5" data-name="Volt Watch S5" data-price="219">
<div class="deal-media tint-cyan">
<svg viewBox="0 0 80 80" aria-hidden="true"><rect x="24" y="22" width="32" height="36" rx="9" fill="#1a2237"/><rect x="29" y="27" width="22" height="26" rx="5" fill="#0a0e18"/><rect x="33" y="8" width="14" height="16" rx="4" fill="#2a3550"/><rect x="33" y="56" width="14" height="16" rx="4" fill="#2a3550"/><circle cx="40" cy="40" r="6" fill="#5b8cff"/></svg>
<span class="stock-chip">In stock</span>
</div>
<div class="deal-body">
<h3>Volt Watch S5</h3>
<p class="rating"><span class="stars" aria-hidden="true">★★★★½</span> <span>4.6 · 1.8k</span></p>
<p class="price-row"><span class="price">$219.00</span> <span class="price-was">$259.00</span></p>
<button class="btn btn-soft add-cart" type="button" data-id="watch-s5" data-name="Volt Watch S5" data-price="219">Add to cart</button>
</div>
</article>
<article class="deal-card" data-id="charger-go" data-name="Nova Charge 100W" data-price="59">
<div class="deal-media tint-violet">
<svg viewBox="0 0 80 80" aria-hidden="true"><rect x="26" y="20" width="28" height="40" rx="7" fill="#1a2237"/><path d="M40 28 34 42h5l-2 10 9-14h-5z" fill="#22d3ee"/></svg>
<span class="stock-chip low">Only 9 left</span>
</div>
<div class="deal-body">
<h3>Nova Charge 100W</h3>
<p class="rating"><span class="stars" aria-hidden="true">★★★★★</span> <span>4.9 · 5.2k</span></p>
<p class="price-row"><span class="price">$59.00</span> <span class="price-was">$89.00</span></p>
<button class="btn btn-soft add-cart" type="button" data-id="charger-go" data-name="Nova Charge 100W" data-price="59">Add to cart</button>
</div>
</article>
<article class="deal-card" data-id="speaker-m1" data-name="Pulse Mini Speaker" data-price="89">
<div class="deal-media tint-blue">
<svg viewBox="0 0 80 80" aria-hidden="true"><rect x="22" y="18" width="36" height="44" rx="12" fill="#1a2237"/><circle cx="40" cy="40" r="12" fill="#0a0e18"/><circle cx="40" cy="40" r="5" fill="#5b8cff"/><circle cx="40" cy="26" r="2.5" fill="#22d3ee"/></svg>
<span class="stock-chip">In stock</span>
</div>
<div class="deal-body">
<h3>Pulse Mini Speaker</h3>
<p class="rating"><span class="stars" aria-hidden="true">★★★★½</span> <span>4.5 · 980</span></p>
<p class="price-row"><span class="price">$89.00</span> <span class="price-was">$119.00</span></p>
<button class="btn btn-soft add-cart" type="button" data-id="speaker-m1" data-name="Pulse Mini Speaker" data-price="89">Add to cart</button>
</div>
</article>
</div>
</div>
</section>
<!-- COMPARE -->
<section class="section section-dark" id="compare" aria-labelledby="compareTitle">
<div class="wrap">
<div class="section-head center">
<div>
<h2 id="compareTitle">Pick your Pulse</h2>
<p class="section-sub">Three tiers, one signature sound. Tap a plan to select it.</p>
</div>
</div>
<div class="compare-grid" role="radiogroup" aria-label="Choose a Pulse model">
<article class="compare-card" data-id="pulse-lite" data-name="Pulse Lite" data-price="199" role="radio" aria-checked="false" tabindex="0">
<h3>Pulse Lite</h3>
<p class="compare-price"><span>$199</span><small>/one-time</small></p>
<ul class="feat-list">
<li class="yes">30h battery</li>
<li class="yes">−32dB ANC</li>
<li class="yes">Bluetooth 5.3</li>
<li class="no">Spatial audio</li>
<li class="no">Titanium frame</li>
</ul>
<span class="select-hint">Select</span>
</article>
<article class="compare-card featured" data-id="pulse-x1" data-name="Pulse X1 Headset" data-price="329" role="radio" aria-checked="true" tabindex="0">
<span class="ribbon">Most popular</span>
<h3>Pulse X1</h3>
<p class="compare-price"><span>$329</span><small>/one-time</small></p>
<ul class="feat-list">
<li class="yes">40h battery</li>
<li class="yes">−48dB ANC</li>
<li class="yes">Bluetooth 5.4 · LDAC</li>
<li class="yes">Spatial audio</li>
<li class="yes">Titanium frame</li>
</ul>
<span class="select-hint">Selected</span>
</article>
<article class="compare-card" data-id="pulse-studio" data-name="Pulse Studio" data-price="499" role="radio" aria-checked="false" tabindex="0">
<h3>Pulse Studio</h3>
<p class="compare-price"><span>$499</span><small>/one-time</small></p>
<ul class="feat-list">
<li class="yes">50h battery</li>
<li class="yes">−52dB ANC</li>
<li class="yes">Bluetooth 5.4 · LDAC</li>
<li class="yes">Spatial + head-track</li>
<li class="yes">Carbon-titanium frame</li>
</ul>
<span class="select-hint">Select</span>
</article>
</div>
<div class="compare-cta">
<p>Selected: <strong id="selectedName">Pulse X1 Headset</strong> · <span id="selectedPrice">$329.00</span></p>
<button class="btn btn-primary add-cart" id="compareAdd" type="button" data-id="pulse-x1" data-name="Pulse X1 Headset" data-price="329">Add selected to cart</button>
</div>
</div>
</section>
<!-- SPEC HIGHLIGHTS / COUNTERS -->
<section class="section" id="specs" aria-labelledby="specsTitle">
<div class="wrap">
<div class="section-head center">
<div>
<h2 id="specsTitle">Engineered, then over-engineered</h2>
<p class="section-sub">Numbers measured in our anechoic lab.</p>
</div>
</div>
<div class="spec-grid">
<div class="spec-tile">
<div class="spec-num"><span class="count" data-target="40" data-suffix="h">0</span></div>
<p class="spec-label">Battery life</p>
<p class="spec-desc">A full week of commutes on a single charge.</p>
</div>
<div class="spec-tile">
<div class="spec-num"><span class="count" data-target="48" data-prefix="−" data-suffix="dB">0</span></div>
<p class="spec-label">Noise cancelled</p>
<p class="spec-desc">Six mics tune out the world 200× a second.</p>
</div>
<div class="spec-tile">
<div class="spec-num"><span class="count" data-target="200" data-suffix="ms">0</span></div>
<p class="spec-label">Low latency mode</p>
<p class="spec-desc">Lip-synced gaming and video, no lag.</p>
</div>
<div class="spec-tile">
<div class="spec-num"><span class="count" data-target="98" data-suffix="%">0</span></div>
<p class="spec-label">Recycled alloy</p>
<p class="spec-desc">Built from reclaimed aerospace titanium.</p>
</div>
</div>
</div>
</section>
<!-- FINAL CTA -->
<section class="cta-band" id="cta" aria-labelledby="ctaTitle">
<div class="cta-glow" aria-hidden="true"></div>
<div class="wrap cta-inner">
<h2 id="ctaTitle">Hear it before everyone else.</h2>
<p>Join 12,000+ early adopters. Free returns for 30 days, no questions asked.</p>
<form class="cta-form" id="notifyForm" novalidate>
<label class="sr-only" for="ctaEmail">Email address</label>
<input id="ctaEmail" type="email" name="email" placeholder="[email protected]" autocomplete="email" required />
<button class="btn btn-primary" type="submit">Notify me</button>
<p class="form-error" id="formError" role="alert" hidden>Please enter a valid email.</p>
</form>
<p class="cta-fine">No spam — drop launch updates only.</p>
</div>
</section>
</main>
<footer class="site-footer" role="contentinfo">
<div class="wrap footer-inner">
<p class="footer-brand">⚡ Voltaic</p>
<nav class="footer-nav" aria-label="Footer">
<a href="#deals">Deals</a>
<a href="#compare">Compare</a>
<a href="#specs">Specs</a>
<a href="#cta">Support</a>
</nav>
<p class="footer-note">Fictional storefront for demo purposes. No real checkout.</p>
</div>
</footer>
<!-- CART DRAWER -->
<div class="drawer-overlay" id="drawerOverlay" hidden></div>
<aside class="cart-drawer" id="cartDrawer" aria-label="Shopping cart" aria-hidden="true">
<div class="drawer-head">
<h2>Your cart</h2>
<button class="icon-btn" id="closeCart" type="button" aria-label="Close cart">
<svg viewBox="0 0 24 24" width="20" height="20" aria-hidden="true"><path d="M6 6l12 12M18 6 6 18" stroke="currentColor" stroke-width="2" stroke-linecap="round"/></svg>
</button>
</div>
<div class="drawer-body" id="cartItems">
<p class="cart-empty" id="cartEmpty">Your cart is empty. Add a gadget to get started.</p>
</div>
<div class="drawer-foot">
<div class="drawer-total"><span>Subtotal</span><strong id="cartTotal">$0.00</strong></div>
<button class="btn btn-primary btn-block" id="checkoutBtn" type="button">Secure checkout</button>
<p class="drawer-fine">🔒 Encrypted · Free shipping over $50</p>
</div>
</aside>
<div class="toast" id="toast" role="status" aria-live="polite"></div>
<script src="script.js"></script>
</body>
</html>Electronics / Tech Store Landing
A spec-forward storefront landing for a fictional tech brand, “Voltaic.” The hero floats an inline-SVG flagship headset over an animated glow ring, surrounded by a tabular spec strip, a discounted price block with a savings badge, and trust signals (secure checkout, free shipping, warranty). Below it sit a lightning-deals row with stock chips and a live countdown timer, three comparison tiers, animated spec counters, and a bold launch CTA — all on a dark electric-blue palette with crisp grid lines and techy glow accents.
Every interaction works with plain JavaScript: any “Add to cart” button opens a slide-in drawer where you can change quantities, remove lines, and watch the subtotal recompute. The comparison cards behave like a radiogroup — click or arrow-key between Pulse Lite, X1, and Studio to update the selected plan and its add-to-cart target. Spec tiles count up via an IntersectionObserver as they scroll into view, the deals timer ticks down each second, and the email-capture form validates inline before confirming with a toast.
The layout collapses gracefully from a two-column hero down to a single stacked column at ~360px, with focus-visible rings, ARIA roles, and reduced-motion support throughout.
Illustrative storefront UI only — fictional products, prices, and reviews. No real checkout.