:root {
  --ink: #101114;
  --muted: #686d76;
  --line: #e5e7eb;
  --soft: #f5f7f9;
  --panel: #ffffff;
  --charcoal: #17191f;
  --lime: #d9ff48;
  --mint: #1de2b1;
  --cyan: #38bdf8;
  --coral: #ff6b5f;
  --radius: 8px;
  --shadow: 0 24px 70px rgba(17, 24, 39, 0.14);
  font-family: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #f1f4f6;
  color: var(--ink);
}

body.cart-open {
  overflow: hidden;
}

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

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

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.site-shell {
  width: min(100%, 1680px);
  margin: 0 auto;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(29, 226, 177, 0.08), transparent 34%),
    linear-gradient(180deg, #ffffff 0%, #f6f8fa 43%, #ffffff 100%);
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 18px 0;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: max-content;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: var(--radius);
  background: var(--ink);
  color: var(--lime);
  font-weight: 900;
}

.brand strong,
.brand small {
  display: block;
  line-height: 1.05;
}

.brand small {
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
}

.main-nav {
  justify-self: center;
  display: flex;
  gap: 8px;
  padding: 6px;
  border: 1px solid rgba(16, 17, 20, 0.08);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 10px 40px rgba(17, 24, 39, 0.05);
}

.main-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  color: #363a42;
  font-size: 0.9rem;
  font-weight: 800;
  transition: 0.2s ease;
}

.main-nav a:hover {
  background: var(--ink);
  color: #ffffff;
}

.top-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

.icon-button,
.cart-button,
.menu-toggle {
  display: inline-grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border: 1px solid rgba(16, 17, 20, 0.1);
  border-radius: var(--radius);
  background: #ffffff;
  color: var(--ink);
  transition: 0.2s ease;
}

.icon-button:hover,
.cart-button:hover,
.menu-toggle:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 24px rgba(16, 17, 20, 0.08);
}

.cart-button {
  position: relative;
}

.cart-count {
  position: absolute;
  top: -7px;
  right: -7px;
  display: grid;
  min-width: 22px;
  height: 22px;
  place-items: center;
  border: 2px solid #ffffff;
  border-radius: 999px;
  background: var(--coral);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 900;
}

.menu-toggle {
  display: none;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  gap: 42px;
  align-items: center;
  width: min(1180px, calc(100% - 40px));
  min-height: calc(100svh - 90px);
  margin: 0 auto;
  padding: 54px 0 70px;
}

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

.kicker,
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #2e343d;
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.kicker span {
  width: 9px;
  height: 9px;
  border-radius: 999px;
  background: var(--mint);
  box-shadow: 0 0 0 7px rgba(29, 226, 177, 0.16);
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 20px;
  font-size: clamp(3rem, 8vw, 6.9rem);
  line-height: 0.92;
  letter-spacing: 0;
}

.hero p {
  max-width: 580px;
  color: #444954;
  font-size: 1.12rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 900;
  transition: 0.2s ease;
}

.button.primary {
  background: var(--ink);
  color: #ffffff;
  box-shadow: 0 16px 34px rgba(16, 17, 20, 0.18);
}

.button.primary:hover,
.button.secondary:hover {
  transform: translateY(-2px);
}

.button.secondary {
  border-color: rgba(16, 17, 20, 0.13);
  background: #ffffff;
  color: var(--ink);
}

.button.full {
  width: 100%;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 34px;
}

.trust-strip div {
  padding: 14px;
  border: 1px solid rgba(16, 17, 20, 0.08);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.82);
}

.trust-strip strong,
.trust-strip span {
  display: block;
}

.trust-strip span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.hero-visual {
  position: relative;
  min-height: 640px;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--charcoal);
  box-shadow: var(--shadow);
}

.hero-visual::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(180deg, rgba(16, 17, 20, 0.05), rgba(16, 17, 20, 0.48)),
    linear-gradient(90deg, rgba(217, 255, 72, 0.34), transparent 44%);
  pointer-events: none;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  min-height: 640px;
  object-fit: cover;
  filter: saturate(1.06) contrast(1.02);
}

.floating-card {
  position: absolute;
  z-index: 2;
  display: grid;
  gap: 3px;
  width: 168px;
  padding: 14px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
  backdrop-filter: blur(18px);
}

.floating-card span,
.floating-card small {
  color: rgba(255, 255, 255, 0.74);
  font-size: 0.78rem;
  font-weight: 800;
}

.floating-card strong {
  font-size: 1.5rem;
  line-height: 1;
}

.floating-card.charge {
  top: 28px;
  right: 28px;
}

.floating-card.audio {
  bottom: 28px;
  left: 28px;
}

.category-row {
  display: flex;
  gap: 12px;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 18px 0 56px;
  overflow-x: auto;
  scrollbar-width: none;
}

.category-row::-webkit-scrollbar,
.filter-tabs::-webkit-scrollbar {
  display: none;
}

.category-row span {
  flex: 0 0 auto;
  padding: 12px 18px;
  border: 1px solid rgba(16, 17, 20, 0.08);
  border-radius: 999px;
  background: #ffffff;
  color: #414650;
  font-size: 0.88rem;
  font-weight: 900;
  box-shadow: 0 10px 26px rgba(17, 24, 39, 0.05);
}

.section {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 74px 0;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 30px;
}

.section-heading h2,
.combo-copy h2,
.contact-section h2 {
  margin: 10px 0 0;
  font-size: clamp(2.15rem, 5vw, 4.1rem);
  line-height: 0.98;
  letter-spacing: 0;
}

.row-heading {
  display: flex;
  max-width: none;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
}

.feature-grid,
.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.feature-card,
.product-card,
.combo-card,
.review-panel {
  border: 1px solid rgba(16, 17, 20, 0.08);
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: 0 16px 36px rgba(17, 24, 39, 0.07);
}

.feature-card {
  padding: 24px;
}

.feature-card svg,
.combo-icon svg,
.cart-empty svg {
  width: 28px;
  height: 28px;
}

.feature-card svg {
  color: var(--coral);
}

.feature-card h3 {
  margin: 22px 0 8px;
  font-size: 1.18rem;
}

.feature-card p,
.combo-copy p,
.combo-card p,
.contact-section p,
.review-panel p,
.product-copy {
  color: var(--muted);
  line-height: 1.6;
}

.filter-tabs {
  display: flex;
  gap: 8px;
  padding: 6px;
  border: 1px solid rgba(16, 17, 20, 0.08);
  border-radius: 999px;
  background: #ffffff;
  overflow-x: auto;
  scrollbar-width: none;
}

.filter-tab {
  flex: 0 0 auto;
  min-height: 38px;
  padding: 0 14px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: #414650;
  font-size: 0.86rem;
  font-weight: 900;
}

.filter-tab.active {
  background: var(--ink);
  color: #ffffff;
}

.product-card {
  overflow: hidden;
  transition: 0.22s ease;
}

.product-card.is-hidden {
  display: none;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 26px 54px rgba(17, 24, 39, 0.12);
}

.product-media {
  position: relative;
  aspect-ratio: 1.1 / 0.78;
  overflow: hidden;
  background: #eceff3;
}

.product-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: 0.35s ease;
}

.product-card:hover .product-media img {
  transform: scale(1.04);
}

.product-media span {
  position: absolute;
  left: 12px;
  top: 12px;
  padding: 7px 10px;
  border-radius: 999px;
  background: rgba(16, 17, 20, 0.82);
  color: #ffffff;
  font-size: 0.72rem;
  font-weight: 900;
}

.product-info {
  display: grid;
  gap: 14px;
  padding: 18px;
}

.product-type {
  margin-bottom: 5px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 900;
  text-transform: uppercase;
}

.product-info h3,
.combo-card h3 {
  margin-bottom: 0;
  font-size: 1.18rem;
  line-height: 1.18;
}

.product-copy {
  min-height: 52px;
  margin-bottom: 0;
  font-size: 0.92rem;
}

.product-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.product-meta strong,
.combo-card strong,
.cart-summary strong {
  font-size: 1.12rem;
}

.add-to-cart {
  display: inline-flex;
  min-height: 40px;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border: 0;
  border-radius: var(--radius);
  background: var(--lime);
  color: var(--ink);
  font-size: 0.86rem;
  font-weight: 900;
  padding: 0 12px;
  transition: 0.2s ease;
}

.add-to-cart:hover {
  transform: translateY(-1px);
  background: #cfff16;
}

.add-to-cart.wide {
  width: 100%;
  margin-top: auto;
}

.combo-section {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 30px;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 80px 34px;
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, rgba(217, 255, 72, 0.18), transparent 34%),
    linear-gradient(180deg, #191b21, #111216);
  color: #ffffff;
}

.combo-copy p,
.combo-card p {
  color: rgba(255, 255, 255, 0.72);
}

.combo-section .eyebrow {
  color: var(--lime);
}

.combo-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.combo-card {
  display: flex;
  min-height: 290px;
  flex-direction: column;
  padding: 18px;
  background: rgba(255, 255, 255, 0.08);
  color: #ffffff;
  box-shadow: none;
}

.combo-card.accent {
  background: #ffffff;
  color: var(--ink);
}

.combo-card.accent p {
  color: var(--muted);
}

.combo-icon {
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  margin-bottom: 28px;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.12);
  color: var(--lime);
}

.combo-card.accent .combo-icon {
  background: var(--ink);
}

.proof-section {
  padding-top: 94px;
}

.proof-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 18px;
}

.review-panel {
  padding: 28px;
}

.stars {
  margin-bottom: 18px;
  color: #ffb000;
  font-size: 1.1rem;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 22px;
}

.review-author span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 999px;
  background: var(--ink);
  color: var(--lime);
  font-size: 0.82rem;
  font-weight: 900;
}

.review-author strong,
.review-author small {
  display: block;
}

.review-author small {
  margin-top: 3px;
  color: var(--muted);
  font-weight: 700;
}

.metrics-panel {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.metrics-panel div {
  display: flex;
  min-height: 210px;
  flex-direction: column;
  justify-content: end;
  padding: 20px;
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(29, 226, 177, 0.18), transparent), var(--charcoal);
  color: #ffffff;
}

.metrics-panel div:nth-child(2) {
  background: linear-gradient(180deg, rgba(255, 107, 95, 0.2), transparent), var(--charcoal);
}

.metrics-panel div:nth-child(3) {
  background: linear-gradient(180deg, rgba(56, 189, 248, 0.2), transparent), var(--charcoal);
}

.metrics-panel strong {
  font-size: clamp(2rem, 4vw, 3.4rem);
  line-height: 1;
}

.metrics-panel span {
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 800;
}

.contact-section {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 34px;
  align-items: start;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto 40px;
  padding: 50px;
  border-radius: var(--radius);
  background: #ffffff;
  box-shadow: var(--shadow);
}

.lead-form {
  display: grid;
  gap: 14px;
}

.lead-form label {
  display: grid;
  gap: 8px;
  color: #3b4048;
  font-size: 0.86rem;
  font-weight: 900;
}

.lead-form input,
.lead-form select {
  width: 100%;
  min-height: 52px;
  border: 1px solid rgba(16, 17, 20, 0.12);
  border-radius: var(--radius);
  background: var(--soft);
  color: var(--ink);
  outline: 0;
  padding: 0 14px;
  transition: 0.2s ease;
}

.lead-form input:focus,
.lead-form select:focus {
  border-color: var(--ink);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(16, 17, 20, 0.06);
}

.form-message {
  min-height: 22px;
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
}

.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 28px 0 46px;
  color: var(--muted);
}

.footer p {
  margin: 0;
}

.footer-links {
  display: flex;
  gap: 16px;
  font-weight: 900;
}

.cart-drawer {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: flex;
  justify-content: flex-end;
  background: rgba(16, 17, 20, 0.42);
  opacity: 0;
  pointer-events: none;
  transition: 0.22s ease;
}

.cart-drawer.is-open {
  opacity: 1;
  pointer-events: auto;
}

.cart-panel {
  display: flex;
  width: min(440px, 100%);
  height: 100%;
  flex-direction: column;
  padding: 24px;
  background: #ffffff;
  transform: translateX(100%);
  transition: 0.25s ease;
}

.cart-drawer.is-open .cart-panel {
  transform: translateX(0);
}

.cart-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.cart-head h2 {
  margin: 6px 0 0;
  font-size: 2rem;
  line-height: 1;
}

.cart-items {
  display: grid;
  gap: 10px;
  overflow-y: auto;
  padding: 18px 0;
}

.cart-line {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.cart-line strong,
.cart-line span {
  display: block;
}

.cart-line span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.86rem;
  font-weight: 800;
}

.qty-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.qty-controls button {
  display: grid;
  width: 30px;
  height: 30px;
  place-items: center;
  border: 0;
  border-radius: var(--radius);
  background: var(--soft);
}

.cart-empty {
  display: grid;
  flex: 1;
  place-items: center;
  align-content: center;
  gap: 12px;
  color: var(--muted);
  text-align: center;
}

.cart-empty[hidden] {
  display: none;
}

.cart-summary {
  display: grid;
  gap: 14px;
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.cart-summary > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.cart-summary span {
  color: var(--muted);
  font-weight: 800;
}

@media (max-width: 980px) {
  .topbar {
    grid-template-columns: auto auto auto;
    justify-content: space-between;
  }

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

  .main-nav {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    border-radius: var(--radius);
    padding: 10px;
  }

  .main-nav.is-open {
    display: flex;
  }

  .main-nav a {
    border-radius: var(--radius);
  }

  .hero,
  .combo-section,
  .proof-layout,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 36px;
  }

  .hero-visual,
  .hero-visual img {
    min-height: 520px;
  }

  .feature-grid,
  .product-grid,
  .combo-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .row-heading {
    align-items: stretch;
    flex-direction: column;
  }
}

@media (max-width: 700px) {
  .topbar,
  .hero,
  .category-row,
  .section,
  .combo-section,
  .contact-section,
  .footer {
    width: min(100% - 28px, 1180px);
  }

  .topbar {
    gap: 10px;
    padding: 12px 0;
  }

  .brand small,
  .top-actions .icon-button {
    display: none;
  }

  h1 {
    font-size: 3.2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .hero-actions,
  .trust-strip,
  .feature-grid,
  .product-grid,
  .combo-grid,
  .metrics-panel {
    grid-template-columns: 1fr;
  }

  .hero-actions,
  .trust-strip {
    display: grid;
  }

  .hero-visual,
  .hero-visual img {
    min-height: 420px;
  }

  .floating-card {
    width: 142px;
  }

  .section {
    padding: 54px 0;
  }

  .section-heading h2,
  .combo-copy h2,
  .contact-section h2 {
    font-size: 2.35rem;
  }

  .combo-section,
  .contact-section {
    padding: 28px 18px;
  }

  .metrics-panel div {
    min-height: 150px;
  }

  .footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-links {
    flex-wrap: wrap;
  }
}

@media (max-width: 430px) {
  .brand strong {
    font-size: 0.94rem;
  }

  .brand-mark,
  .icon-button,
  .cart-button,
  .menu-toggle {
    width: 40px;
    height: 40px;
  }

  h1 {
    font-size: 2.78rem;
  }

  .product-meta {
    align-items: stretch;
    flex-direction: column;
  }

  .add-to-cart {
    width: 100%;
  }

  .cart-panel {
    padding: 18px;
  }
}

/* Accessibility: skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 8px;
  background: var(--ink);
  color: #fff;
  padding: 10px 14px;
  border-radius: var(--radius);
  z-index: 9999;
  font-weight: 600;
}
.skip-link:focus {
  left: 16px;
  outline: 2px solid var(--mint);
  outline-offset: 2px;
}

/* Footer legal line */
.footer .legal {
  display: block;
  width: 100%;
  text-align: center;
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.82rem;
}