:root {
  --bg: #0f1115;
  --bg-soft: #141721;
  --surface: #191d29;
  --surface-2: #1f2434;
  --border: #2a3042;
  --border-soft: #232839;
  --text: #eef1f8;
  --muted: #8a93a8;
  --faint: #5c6478;
  --primary: #34d399;
  --primary-dim: rgba(52, 211, 153, .13);
  --info: #38bdf8;
  --info-dim: rgba(56, 189, 248, .13);
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 18px 40px rgba(0, 0, 0, .35);
  --max: 1180px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Tahoma, sans-serif;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

::selection { background: var(--primary); color: #06292d; }

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg-soft); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--faint); }

/* ─────────── NAV ─────────── */
.nav {
  position: sticky; top: 0; z-index: 60;
  display: flex; align-items: center; gap: 20px;
  max-width: var(--max); margin: 0 auto;
  padding: 14px 20px;
  transition: background .25s ease, box-shadow .25s ease, padding .25s ease;
}
.nav.stuck {
  position: fixed; inset: 0 0 auto 0; max-width: none;
  padding: 10px 20px;
  background: rgba(15, 17, 21, .88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--border-soft);
}
.nav > * { position: relative; }
.nav.stuck > * { max-width: none; margin-inline: 0; width: auto; }
.nav.stuck { display: flex; justify-content: center; }

.nav-brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.nav-logo {
  width: 40px; height: 40px; border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), #0ea5b7);
  display: grid; place-items: center;
  font-weight: 900; font-size: 15px; color: #06292d;
  box-shadow: 0 6px 18px rgba(52, 211, 153, .25);
}
.nav-name { font-weight: 800; font-size: 16px; letter-spacing: .3px; line-height: 1.3; }
.nav-name small { display: block; font-size: 10px; color: var(--muted); font-weight: 500; letter-spacing: .4px; }

.nav-links { display: flex; align-items: center; gap: 4px; margin-inline-start: auto; }
.nav-links a {
  padding: 8px 14px; border-radius: 9px;
  font-size: 13.5px; font-weight: 600; color: var(--muted);
  transition: color .18s, background .18s;
}
.nav-links a:hover { color: var(--text); background: var(--surface); }
.nav-cta {
  background: var(--primary-dim) !important;
  color: var(--primary) !important;
  border: 1px solid rgba(52, 211, 153, .3);
  margin-inline-start: 8px;
}
.nav-cta:hover { background: var(--primary) !important; color: #06292d !important; }

.nav-burger {
  display: none; margin-inline-start: auto;
  width: 42px; height: 42px; border-radius: 10px;
  background: var(--surface); border: 1px solid var(--border);
  cursor: pointer; padding: 0;
}
.nav-burger span { display: block; width: 18px; height: 2px; background: var(--text); margin: 3.5px auto; border-radius: 2px; transition: .25s; }
.nav-cart {
  display: inline-flex; align-items: center; gap: 8px; flex-shrink: 0;
  padding: 9px 12px; border: 1px solid var(--border); border-radius: 12px;
  color: var(--text); font-size: 12px; font-weight: 800; background: var(--surface);
}
.nav-cart b { display: grid; place-items: center; min-width: 24px; height: 24px; padding: 0 5px; border-radius: 50%; background: var(--primary); color: #06292d; font-size: 11px; }

/* ─────────── BUTTONS ─────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 28px; border-radius: 999px; border: 1px solid transparent;
  font-family: inherit; font-size: 14px; font-weight: 800; cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease;
}
.btn:active { transform: scale(.97); }
.btn-primary {
  background: linear-gradient(135deg, var(--primary), #10b981);
  color: #06292d;
  box-shadow: 0 10px 26px rgba(52, 211, 153, .22);
}
.btn-primary:hover { box-shadow: 0 14px 32px rgba(52, 211, 153, .32); }
.btn-ghost { background: var(--surface); border-color: var(--border); color: var(--text); }
.btn-ghost:hover { background: var(--surface-2); border-color: var(--faint); }

/* ─────────── HERO ─────────── */
.hero {
  position: relative;
  display: grid; grid-template-columns: 1.05fr .95fr; align-items: center; gap: 50px;
  max-width: var(--max); margin: 0 auto;
  padding: 70px 20px 90px;
}
.hero-glow {
  position: absolute; top: -180px; inset-inline-start: 50%; transform: translateX(50%);
  width: 900px; height: 600px; pointer-events: none; z-index: -1;
  background: radial-gradient(closest-side, rgba(52, 211, 153, .13), transparent 70%),
              radial-gradient(closest-side, rgba(56, 189, 248, .1), transparent 70%);
  background-position: 30% 30%, 75% 60%;
  background-size: 60% 70%, 55% 65%;
  background-repeat: no-repeat;
}

.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 15px; border-radius: 999px;
  background: var(--primary-dim); border: 1px solid rgba(52, 211, 153, .28);
  color: var(--primary); font-size: 12.5px; font-weight: 700;
  margin-bottom: 22px;
}
.pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--primary); box-shadow: 0 0 0 4px rgba(52, 211, 153, .18); animation: blip 2s infinite; }
@keyframes blip { 50% { box-shadow: 0 0 0 8px rgba(52, 211, 153, 0); } }

.hero h1 { font-size: clamp(32px, 5.2vw, 56px); line-height: 1.25; font-weight: 900; letter-spacing: -.5px; }
.grad {
  background: linear-gradient(100deg, var(--primary), var(--info));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lead { margin-top: 20px; max-width: 54ch; font-size: 16px; color: var(--muted); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.hero-stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px;
  margin-top: 46px; padding-top: 26px; border-top: 1px solid var(--border-soft);
}
.hero-inner { min-width: 0; }
.hs b { display: block; font-size: 20px; font-weight: 900; color: var(--info); }
.hs span { font-size: 11.5px; color: var(--muted); }

/* dial visual */
.hero-visual { display: grid; place-items: center; }
.dial { position: relative; width: min(340px, 78vw); aspect-ratio: 1; display: grid; place-items: center; }
.dial-ring {
  position: absolute; inset: 0; border-radius: 50%;
  background: conic-gradient(from 180deg, var(--primary) 0deg, var(--info) 140deg, transparent 220deg, transparent 360deg);
  filter: blur(.5px);
  -webkit-mask: radial-gradient(circle, transparent 66%, #000 67%);
  mask: radial-gradient(circle, transparent 66%, #000 67%);
  animation: spin 14s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.dial::before {
  content: ""; position: absolute; inset: 12px; border-radius: 50%;
  background: radial-gradient(circle at 40% 30%, var(--surface-2), var(--bg-soft));
  border: 1px solid var(--border);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, .04);
}
.dial-core { position: relative; text-align: center; }
.dial-val { display: block; font-family: "Consolas", ui-monospace, monospace; font-size: 62px; font-weight: 900; line-height: 1; color: var(--primary); }
.dial-unit { font-size: 11.5px; color: var(--muted); letter-spacing: .5px; }
.dial-pill {
  position: absolute; bottom: 6%; padding: 6px 16px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border);
  font-size: 12px; font-weight: 700; color: var(--muted);
}

/* ─────────── SECTIONS ─────────── */
.section { max-width: var(--max); margin: 0 auto; padding: 90px 20px; }
.section.alt {
  max-width: none; padding-inline: max(20px, calc((100% - var(--max)) / 2));
  background: var(--bg-soft); border-block: 1px solid var(--border-soft);
}
.sec-head { max-width: 660px; margin-bottom: 52px; }
.sec-head.center { margin-inline: auto; text-align: center; }
.kicker {
  display: inline-block; font-size: 12px; font-weight: 800; letter-spacing: 1px;
  color: var(--primary); margin-bottom: 12px;
}
.kicker::before { content: "— "; opacity: .5; }
.sec-head h2 { font-size: clamp(24px, 3.4vw, 36px); font-weight: 900; line-height: 1.35; letter-spacing: -.3px; }
.sec-head p { margin-top: 14px; color: var(--muted); font-size: 15px; }

/* ─────────── FEATURES ─────────── */
.feat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(255px, 1fr)); gap: 18px; }
.feat {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px 22px;
  transition: transform .3s ease, border-color .3s ease, background .3s ease;
}
.feat:hover { transform: translateY(-6px); border-color: rgba(52, 211, 153, .45); background: var(--surface-2); }
.feat-ico {
  width: 46px; height: 46px; border-radius: 13px; margin-bottom: 16px;
  display: grid; place-items: center; font-size: 22px;
  background: var(--primary-dim); border: 1px solid var(--border-soft);
}
.feat:nth-child(even) .feat-ico { background: var(--info-dim); }
.feat h3 { font-size: 16.5px; font-weight: 800; margin-bottom: 9px; }
.feat p { font-size: 13.8px; color: var(--muted); }

/* ─────────── STEPS ─────────── */
.steps { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 20px; }
.steps li {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px 22px; position: relative;
}
.step-n {
  display: grid; place-items: center;
  width: 38px; height: 38px; border-radius: 11px; margin-bottom: 15px;
  background: linear-gradient(135deg, var(--primary), #0ea5b7);
  color: #06292d; font-weight: 900; font-size: 16px;
}
.steps h3 { font-size: 16px; font-weight: 800; margin-bottom: 8px; }
.steps p { font-size: 13.6px; color: var(--muted); }

/* ─────────── SPECS ─────────── */
.spec-table {
  border: 1px solid var(--border); border-radius: var(--radius);
  background: var(--surface); overflow: hidden;
}
.spec-row {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 17px 22px; border-bottom: 1px solid var(--border-soft); font-size: 14px;
}
.spec-row:last-child { border-bottom: 0; }
.spec-row:nth-child(odd) { background: rgba(255, 255, 255, .012); }
.spec-row span { color: var(--muted); }
.spec-row b { font-weight: 800; color: var(--info); font-family: "Consolas", ui-monospace, monospace; font-size: 13.5px; }

/* ─────────── FAQ ─────────── */
.faq-list { display: grid; gap: 12px; max-width: 820px; }
details {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-sm); overflow: hidden;
  transition: border-color .2s;
}
details[open] { border-color: rgba(52, 211, 153, .4); }
summary {
  cursor: pointer; padding: 17px 20px; font-size: 15px; font-weight: 700;
  display: flex; align-items: center; gap: 12px; list-style: none;
}
summary::-webkit-details-marker { display: none; }
summary::after {
  content: "+"; margin-inline-start: auto; color: var(--primary);
  font-size: 20px; font-weight: 400; line-height: 1; transition: transform .25s;
}
details[open] summary::after { transform: rotate(45deg); }
details p { padding: 0 20px 19px; font-size: 13.8px; color: var(--muted); }

/* ─────────── CONTACT ─────────── */
.contact-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 26px; padding: clamp(26px, 5vw, 54px);
  box-shadow: var(--shadow);
}
.contact-card h2 { font-size: clamp(22px, 3.2vw, 33px); font-weight: 900; }
.contact-card > p { margin-top: 12px; color: var(--muted); }

.contact-form { display: grid; gap: 12px; margin-top: 30px; max-width: 620px; }
.cf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%; padding: 14px 16px; border-radius: var(--radius-sm);
  background: var(--bg-soft); border: 1px solid var(--border);
  color: var(--text); font-family: inherit; font-size: 14px; outline: none;
  transition: border-color .2s, background .2s;
}
.contact-form textarea { resize: vertical; min-height: 110px; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  border-color: var(--primary);
}
.contact-form input::placeholder, .contact-form textarea::placeholder { color: var(--faint); }
.contact-form select option { background: var(--surface); color: var(--text); }
.contact-form .btn { justify-self: start; padding-inline: 34px; }
.cf-note { font-size: 12px; color: var(--faint); }
.cf-note.ok { color: var(--primary); }
.cf-note.err { color: #f87171; }

.contact-lines {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(215px, 1fr)); gap: 12px;
  margin-top: 40px; padding-top: 32px; border-top: 1px solid var(--border-soft);
}
.cl {
  display: flex; align-items: center; gap: 13px;
  background: var(--bg-soft); border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm); padding: 15px 17px;
  transition: border-color .2s, transform .2s;
}
a.cl:hover { border-color: var(--primary); transform: translateY(-2px); }
.cl-ico { font-size: 20px; }
.cl small { display: block; font-size: 11px; color: var(--muted); }
.cl b { font-size: 13.8px; font-weight: 700; }

/* ─────────── FOOTER ─────────── */
.footer {
  max-width: var(--max); margin: 0 auto; padding: 54px 20px 34px;
  border-top: 1px solid var(--border-soft);
  display: grid; gap: 26px;
}
.f-brand { display: flex; align-items: center; gap: 12px; }
.f-brand b { display: block; font-size: 15px; }
.f-brand small { font-size: 11.5px; color: var(--muted); }
.f-links { display: flex; flex-wrap: wrap; gap: 18px; font-size: 13.5px; }
.f-links a { color: var(--muted); transition: color .18s; }
.f-links a:hover { color: var(--primary); }
.f-copy { font-size: 12px; color: var(--faint); }

/* ─────────── STORE ─────────── */
.shop-section { position: relative; }
.shop-heading { display: flex; align-items: end; justify-content: space-between; gap: 24px; }
.shop-heading .sec-head { margin-bottom: 30px; }
.shop-contact { flex-shrink: 0; margin-bottom: 30px; }
.product-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px; }
.shop-empty {
  grid-column: 1 / -1; display: grid; justify-items: center; text-align: center;
  padding: clamp(34px, 7vw, 72px) 20px; border: 1px dashed #3a4356;
  border-radius: 24px; background: linear-gradient(135deg, rgba(52,211,153,.06), rgba(56,189,248,.035));
}
.shop-empty-icon { display: grid; place-items: center; width: 58px; height: 58px; margin-bottom: 18px; border-radius: 18px; color: var(--primary); background: var(--primary-dim); border: 1px solid rgba(52,211,153,.24); font-size: 34px; }
.shop-empty h3 { font-size: 19px; font-weight: 900; }
.shop-empty p { max-width: 42ch; margin: 8px 0 20px; color: var(--muted); font-size: 14px; }
.product-card { overflow: hidden; display: flex; flex-direction: column; min-width: 0; border: 1px solid var(--border); border-radius: 22px; background: var(--surface); transition: transform .2s ease, border-color .2s ease; }
.product-card:hover { transform: translateY(-4px); border-color: rgba(52,211,153,.55); }
.product-media { position: relative; aspect-ratio: 4 / 3; overflow: hidden; display: grid; place-items: center; background: radial-gradient(circle at 50% 35%, rgba(52,211,153,.18), transparent 43%), linear-gradient(145deg, #222a39, #151923); }
.product-media img { width: 100%; height: 100%; object-fit: cover; }
.product-placeholder { color: rgba(52,211,153,.75); font-size: clamp(58px, 8vw, 92px); font-weight: 900; letter-spacing: -8px; }
.product-badge { position: absolute; inset-block-start: 12px; inset-inline-start: 12px; padding: 5px 10px; border: 1px solid rgba(52,211,153,.25); border-radius: 999px; color: var(--primary); background: rgba(15,17,21,.78); font-size: 11px; font-weight: 800; }
.product-info { display: flex; flex: 1; flex-direction: column; padding: 18px; }
.product-category { align-self: start; margin-bottom: 7px; color: var(--info); font-size: 11px; font-weight: 800; }
.product-info h3 { font-size: 17px; font-weight: 900; line-height: 1.5; }
.product-info p { flex: 1; margin-top: 7px; color: var(--muted); font-size: 13px; }
.product-buy { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 20px; padding-top: 15px; border-top: 1px solid var(--border-soft); }
.product-price { color: var(--primary); font-size: 14px; font-weight: 900; white-space: nowrap; }
.product-price small { display: block; color: var(--faint); font-size: 10px; font-weight: 600; }
.product-add { min-height: 42px; padding: 9px 14px; border-radius: 12px; font-size: 12px; }

/* Cart drawer: online payment stays disabled until a payment provider is configured. */
.cart-scrim { position: fixed; inset: 0; z-index: 90; background: rgba(0,0,0,.56); opacity: 0; visibility: hidden; transition: .25s ease; }
.cart-panel { position: fixed; inset-block: 0; inset-inline-start: 0; z-index: 91; display: flex; flex-direction: column; width: min(420px, 100%); padding: 24px; background: var(--bg-soft); border-inline-end: 1px solid var(--border); box-shadow: var(--shadow); transform: translateX(105%); transition: transform .28s ease; }
.cart-open .cart-panel { transform: none; }
.cart-open .cart-scrim { opacity: 1; visibility: visible; }
.cart-panel-head { display: flex; align-items: center; justify-content: space-between; padding-bottom: 18px; border-bottom: 1px solid var(--border); }
.cart-panel-head h2 { font-size: 20px; }
.cart-close { width: 42px; height: 42px; border: 1px solid var(--border); border-radius: 12px; color: var(--text); background: var(--surface); font: inherit; font-size: 26px; cursor: pointer; }
.cart-items { flex: 1; overflow-y: auto; padding: 12px 0; }
.cart-line { display: grid; grid-template-columns: 1fr auto; gap: 6px 14px; padding: 15px 0; border-bottom: 1px solid var(--border-soft); }
.cart-line-title { font-size: 14px; font-weight: 800; }
.cart-line-price { color: var(--primary); font-size: 13px; font-weight: 800; }
.cart-line-controls { display: flex; align-items: center; gap: 8px; grid-column: 1 / -1; }
.cart-line-controls button { min-width: 34px; min-height: 34px; border: 1px solid var(--border); border-radius: 10px; color: var(--text); background: var(--surface); cursor: pointer; }
.cart-line-controls .cart-remove { margin-inline-start: auto; color: #fca5a5; }
.cart-panel-foot { padding-top: 18px; border-top: 1px solid var(--border); }
.cart-total { display: flex; justify-content: space-between; gap: 14px; font-size: 14px; }
.cart-total b { color: var(--primary); }
.cart-note { margin: 12px 0 16px; color: var(--muted); font-size: 12px; }
.cart-checkout { width: 100%; }
.cart-empty { padding: 28px 10px; color: var(--muted); text-align: center; font-size: 14px; }

button, a, input, select, textarea { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid rgba(52,211,153,.75); outline-offset: 3px; }

.to-top {
  position: fixed; inset-inline-start: 22px; bottom: 22px; z-index: 55;
  width: 44px; height: 44px; border-radius: 13px;
  display: grid; place-items: center; font-size: 19px;
  background: var(--surface); border: 1px solid var(--border); color: var(--text);
  box-shadow: var(--shadow); cursor: pointer;
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: .28s ease;
}
.to-top.show { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { border-color: var(--primary); color: var(--primary); }

/* ─────────── RESPONSIVE ─────────── */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; text-align: center; padding-top: 44px; gap: 20px; }
  .hero .lead { margin-inline: auto; }
  .hero-actions { justify-content: center; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 18px; }
  .hero-visual { order: -1; }
}

@media (max-width: 720px) {
  .nav { padding: 10px 14px; gap: 10px; }
  .nav.stuck { padding: 9px 14px; }
  .nav-logo { width: 36px; height: 36px; }
  .nav-name { font-size: 14px; }
  .nav-name small { max-width: 135px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .nav-burger { display: block; }
  .nav-cart { padding: 7px 8px; gap: 5px; font-size: 11px; }
  .nav-cart b { min-width: 22px; height: 22px; }
  .nav-links {
    position: absolute; top: calc(100% + 10px); inset-inline-start: 16px; inset-inline-end: 16px;
    flex-direction: column; align-items: stretch; gap: 2px; padding: 10px;
    background: rgba(20, 23, 33, .97);
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    border: 1px solid var(--border); border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: .24s ease;
  }
  .nav-links.open { opacity: 1; visibility: visible; transform: none; }
  .nav-links a { padding: 12px 14px; }
  .nav-cta { margin-inline-start: 0; text-align: center; }

  .section { padding: 62px 16px; }
  .hero { padding: 32px 16px 62px; }
  .hero-visual { order: 0; }
  .hero h1 { font-size: clamp(31px, 9vw, 44px); }
  .lead { font-size: 14px; line-height: 1.9; }
  .hero-actions { display: grid; grid-template-columns: 1fr; margin-top: 24px; }
  .hero-actions .btn { width: 100%; min-height: 48px; }
  .hero-stats { margin-top: 30px; gap: 12px; }
  .hs { padding: 12px 8px; border: 1px solid var(--border-soft); border-radius: 13px; background: rgba(25,29,41,.55); }
  .hs b { font-size: 17px; }
  .dial { width: min(230px, 64vw); }
  .dial-val { font-size: 42px; }
  .section { padding: 54px 16px; }
  .sec-head { margin-bottom: 30px; }
  .sec-head h2 { font-size: 25px; }
  .sec-head p { font-size: 14px; }
  .feat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .feat { padding: 17px 14px; border-radius: 16px; }
  .feat h3 { font-size: 14px; }
  .feat p { font-size: 12px; line-height: 1.75; }
  .feat-ico { width: 40px; height: 40px; margin-bottom: 12px; }
  .steps { grid-template-columns: 1fr 1fr; gap: 10px; }
  .steps li { padding: 17px 14px; }
  .steps p { font-size: 12px; }
  .shop-heading { align-items: start; flex-direction: column; gap: 0; }
  .shop-contact { margin: -12px 0 24px; }
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 11px; }
  .product-info { padding: 13px; }
  .product-info h3 { font-size: 14px; }
  .product-info p { font-size: 11.5px; }
  .product-buy { align-items: stretch; flex-direction: column; gap: 10px; margin-top: 14px; }
  .product-add { width: 100%; }
  .cart-panel { padding: 18px; }
  .cf-row { grid-template-columns: 1fr; }
  .spec-row { flex-direction: column; align-items: flex-start; gap: 4px; padding: 15px 16px; }
  .dial-val { font-size: 48px; }
  .footer { text-align: center; justify-items: center; }
}

@media (max-width: 390px) {
  .nav { gap: 7px; }
  .nav-name small { display: none; }
  .nav-cart span { display: none; }
  .feat-grid, .steps, .product-grid { grid-template-columns: 1fr; }
  .product-media { aspect-ratio: 16 / 10; }
  .product-buy { flex-direction: row; align-items: center; }
  .product-add { width: auto; }
  .cf-row { gap: 10px; }
  .contact-form .btn { width: 100%; }
  .spec-row { font-size: 13px; }
}

/* ─────────── AIRRIDE STORE REDESIGN ─────────── */
:root {
  --bg: #0b1118;
  --bg-soft: #101923;
  --surface: #15212d;
  --surface-2: #1b2b39;
  --border: #2a3a49;
  --border-soft: #202f3d;
  --text: #f2f7fa;
  --muted: #adbdca;
  --faint: #8497a6;
  --primary: #6ce3ac;
  --primary-dim: rgba(108, 227, 172, .12);
  --info: #7bd3ff;
  --info-dim: rgba(123, 211, 255, .12);
  --radius: 22px;
  --max: 1240px;
}

html { scroll-padding-top: 92px; }
body { background: var(--bg); color: var(--text); font-size: 16px; line-height: 1.8; }
.nav, .nav.stuck {
  position: sticky; inset: 0 0 auto; width: 100%; max-width: none;
  margin: 0; padding: 12px max(20px, calc((100% - var(--max)) / 2));
  justify-content: initial; background: rgba(11, 17, 24, .9);
  border-bottom: 1px solid rgba(137, 160, 179, .12);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
}
.nav.stuck { padding-block: 10px; box-shadow: 0 10px 30px rgba(0,0,0,.18); }
.nav.stuck > * { max-width: none; margin-inline: 0; width: auto; }
.nav-links { gap: 5px; }
.nav-links a { color: #bac8d3; font-size: 14px; padding: 9px 13px; }
.nav-brand { gap: 12px; }
.nav-logo { width: 44px; height: 44px; border-radius: 14px; }
.nav-name { font-size: 17px; }
.nav-name small { font-size: 11px; }
.nav-cart { min-height: 44px; padding: 8px 11px; border-color: #3a4a58; }
.nav-burger { width: 46px; height: 46px; }

.hero {
  width: min(var(--max), calc(100% - 40px)); min-height: 560px;
  margin: 30px auto 44px; padding: clamp(38px, 6.5vw, 82px);
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, .92fr); gap: clamp(30px, 6vw, 82px);
  border: 1px solid rgba(145, 183, 201, .14); border-radius: 34px;
  background: radial-gradient(ellipse at 18% 48%, rgba(66, 188, 167, .16), transparent 36%),
              radial-gradient(ellipse at 92% 4%, rgba(73, 141, 190, .14), transparent 33%),
              linear-gradient(135deg, #111c27, #0e1721 68%, #101b24);
  box-shadow: 0 36px 90px rgba(0,0,0,.24);
}
.hero-glow { display: none; }
.hero-inner { max-width: 680px; }
.pill { margin-bottom: 24px; padding: 8px 15px; font-size: 13px; }
.hero h1 { max-width: 14ch; font-size: clamp(40px, 5.3vw, 68px); line-height: 1.24; letter-spacing: -.8px; }
.lead { max-width: 58ch; margin-top: 22px; font-size: 17px; line-height: 2; color: #b6c5cf; }
.hero-actions { gap: 14px; margin-top: 30px; }
.btn { min-height: 48px; padding: 13px 24px; font-size: 14px; }
.btn-primary { color: #09251d; box-shadow: 0 12px 32px rgba(74, 207, 151, .2); }
.hero-stats { margin-top: 38px; padding-top: 24px; gap: 14px; }
.hs b { color: #8bdcff; font-size: 21px; }
.hs span { color: #aebdca; font-size: 12px; }
.hero-visual { min-width: 0; }
.dial { width: min(390px, 34vw); filter: drop-shadow(0 28px 44px rgba(0,0,0,.3)); }
.dial::before { inset: 16px; background: radial-gradient(circle at 35% 27%, #233442, #111a25 68%); border-color: #344755; }
.dial-val { font-size: 72px; }
.dial-unit { font-size: 13px; color: #b7c7d2; }
.dial-pill { bottom: 7%; padding: 8px 18px; }

.section { padding: 88px 24px; }
.section.alt { padding-inline: max(24px, calc((100% - var(--max)) / 2)); }
.sec-head { max-width: 760px; margin-bottom: 38px; }
.sec-head h2, .contact-card h2 { font-size: clamp(29px, 3.3vw, 42px); line-height: 1.35; }
.sec-head p, .contact-card > p { color: var(--muted); font-size: 16px; line-height: 1.9; }
.kicker { font-size: 13px; }
.feat-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.feat { padding: 23px 20px; border-radius: 20px; background: linear-gradient(145deg, #172430, #131e29); }
.feat h3 { font-size: 16px; line-height: 1.55; }
.feat p { color: #aebdca; font-size: 14px; line-height: 1.85; }
.feat-ico { width: 48px; height: 48px; }
.steps { grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.steps li { padding: 24px 21px; border-radius: 20px; }
.steps h3 { font-size: 16px; }
.steps p { color: var(--muted); font-size: 14px; line-height: 1.85; }
.spec-table { max-width: 920px; }
.spec-row { min-height: 58px; padding: 15px 22px; font-size: 15px; }
.spec-row b { font-size: 14px; }
.faq-list { max-width: 900px; }
summary { min-height: 58px; font-size: 15px; }
details p { color: var(--muted); font-size: 14px; line-height: 1.9; }

.shop-section { padding-top: 62px; }
.shop-heading { align-items: center; }
.shop-heading .sec-head { margin-bottom: 28px; }
.shop-contact { margin-bottom: 28px; }
.product-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.shop-empty {
  grid-column: 1 / -1; grid-template-columns: auto 1fr auto; justify-items: initial; align-items: center;
  gap: 8px 22px; padding: 25px 30px; text-align: right; border-style: solid;
  border-color: rgba(108,227,172,.18); border-radius: 22px;
  background: linear-gradient(100deg, rgba(108,227,172,.08), rgba(123,211,255,.035));
}
.shop-empty-icon { grid-row: span 2; margin: 0; }
.shop-empty h3 { font-size: 19px; }
.shop-empty p { margin: 0; font-size: 14px; }
.shop-empty .btn { grid-column: 3; grid-row: 1 / span 2; }
.product-card { border-radius: 24px; background: linear-gradient(145deg, #182532, #121c26); }
.product-media { aspect-ratio: 4 / 3; }
.product-info { padding: 21px; }
.product-info h3 { font-size: 18px; }
.product-info p { color: #b0bfca; font-size: 14px; line-height: 1.85; }
.product-buy { margin-top: 22px; }
.product-price { font-size: 16px; }
.product-price small { color: #9fb0bd; font-size: 11px; }
.product-add { min-height: 46px; padding-inline: 16px; font-size: 13px; }

.contact-card { max-width: 960px; margin-inline: auto; padding: clamp(28px, 5vw, 64px); border-radius: 30px; background: linear-gradient(145deg, #172430, #121c26); }
.contact-form { max-width: 700px; gap: 14px; }
.contact-form input, .contact-form select, .contact-form textarea { min-height: 52px; padding: 14px 17px; font-size: 15px; }
.contact-form textarea { min-height: 140px; }
.contact-form .btn { min-height: 50px; }
.contact-lines { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cl { min-height: 68px; padding: 16px 18px; }
.cl small { font-size: 12px; }
.cl b { font-size: 14px; }
.footer { padding-top: 44px; }
.f-links { font-size: 14px; }
.f-copy { color: #93a5b3; font-size: 13px; }

.shop-empty[hidden] { display: none; }
.cart-panel { width: min(410px, 100vw); padding: 24px; }
.cart-panel-head h2 { font-size: 21px; }
.cart-note { font-size: 13px; line-height: 1.8; }
.cart-checkout { min-height: 50px; }

@media (max-width: 1020px) {
  .hero { grid-template-columns: minmax(0, 1fr) minmax(240px, .8fr); min-height: 480px; gap: 26px; padding: 44px; }
  .hero h1 { font-size: clamp(38px, 5.4vw, 54px); }
  .dial { width: min(330px, 34vw); }
  .feat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .nav { gap: 8px; }
  .nav-links a { padding-inline: 9px; font-size: 13px; }
}

@media (max-width: 760px) {
  html { scroll-padding-top: 76px; }
  .nav, .nav.stuck { padding: 9px 16px; gap: 9px; }
  .nav-brand { gap: 9px; }
  .nav-logo { width: 38px; height: 38px; border-radius: 12px; }
  .nav-name { font-size: 15px; }
  .nav-name small { font-size: 10px; }
  .nav-burger { display: block; margin-inline-start: auto; flex-shrink: 0; }
  .nav-links { position: absolute; top: calc(100% + 8px); inset-inline: 14px; z-index: 10; display: flex; flex-direction: column; align-items: stretch; gap: 3px; padding: 10px; background: #14212c; border: 1px solid var(--border); border-radius: 17px; box-shadow: var(--shadow); opacity: 0; visibility: hidden; transform: translateY(-6px); transition: .2s ease; }
  .nav-links.open { opacity: 1; visibility: visible; transform: none; }
  .nav-links a { min-height: 46px; display: flex; align-items: center; font-size: 14px; }
  .nav-cta { margin: 0; }
  .nav-cart { min-height: 42px; padding: 6px 8px; gap: 5px; font-size: 11px; }
  .nav-cart b { min-width: 22px; height: 22px; }

  .hero { width: calc(100% - 28px); min-height: 0; margin: 15px auto 25px; padding: 29px 22px 24px; grid-template-columns: 1fr; gap: 18px; border-radius: 25px; text-align: right; }
  .hero-inner { order: 0; }
  .hero-visual { order: 1; }
  .hero .pill { margin-bottom: 16px; }
  .hero h1 { max-width: none; font-size: clamp(34px, 9vw, 48px); line-height: 1.3; }
  .hero .lead { max-width: none; margin-top: 15px; font-size: 15px; line-height: 1.95; }
  .hero-actions { display: flex; flex-direction: column; gap: 10px; margin-top: 21px; }
  .hero-actions .btn { width: 100%; min-height: 50px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 9px; margin-top: 22px; padding-top: 18px; }
  .hs { padding: 10px; border: 1px solid var(--border-soft); border-radius: 13px; background: rgba(21,33,45,.64); }
  .hs b { font-size: 17px; }
  .hs span { font-size: 11px; }
  .dial { width: min(220px, 58vw); }
  .dial-val { font-size: 47px; }

  .section, .section.alt { padding: 58px 18px; }
  .shop-section { padding-top: 36px !important; }
  .sec-head { margin-bottom: 27px; }
  .sec-head h2, .contact-card h2 { font-size: clamp(27px, 7vw, 34px); }
  .sec-head p, .contact-card > p { font-size: 15px; }
  .feat-grid, .steps { grid-template-columns: 1fr; gap: 12px; }
  .feat, .steps li { padding: 20px; }
  .feat h3, .steps h3 { font-size: 16px; }
  .feat p, .steps p { font-size: 14px; }
  .shop-heading { align-items: stretch; flex-direction: column; gap: 0; }
  .shop-heading .sec-head { margin-bottom: 15px; }
  .shop-contact { align-self: start; margin: 0 0 20px; }
  .product-grid { grid-template-columns: 1fr; gap: 14px; }
  .shop-empty { grid-template-columns: auto 1fr; gap: 5px 14px; padding: 20px; text-align: right; }
  .shop-empty-icon { width: 48px; height: 48px; grid-row: 1 / span 2; font-size: 28px; }
  .shop-empty h3 { align-self: end; font-size: 16px; }
  .shop-empty p { align-self: start; font-size: 13px; }
  .shop-empty .btn { grid-column: 1 / -1; grid-row: auto; width: 100%; margin-top: 10px; }
  .product-info { padding: 17px; }
  .product-info h3 { font-size: 17px; }
  .product-info p { font-size: 14px; }
  .product-buy { flex-direction: row; align-items: center; }
  .product-add { width: auto; }
  .spec-row { flex-direction: row; align-items: center; padding: 14px 16px; font-size: 14px; }
  .contact-card { padding: 25px 19px; border-radius: 23px; }
  .cf-row { grid-template-columns: 1fr; }
  .contact-form .btn { width: 100%; }
  .contact-lines { grid-template-columns: 1fr; margin-top: 26px; padding-top: 22px; }
  .footer { padding: 38px 18px 26px; text-align: right; justify-items: start; }
  .f-links { gap: 9px 16px; }
  .cart-panel { padding: 19px; }
}

@media (max-width: 390px) {
  .nav-name small, .nav-cart span { display: none; }
  .nav { gap: 7px; }
  .nav-cart { padding-inline: 7px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}