:root {
  --ink: #111827;
  --muted: #5f6c7b;
  --line: #dfe5ea;
  --paper: #ffffff;
  --soft: #f4f7f8;
  --panel: #202733;
  --teal: #16b8b5;
  --teal-dark: #0f747b;
  --amber: #f2a33a;
  --shadow: 0 18px 46px rgba(17, 24, 39, 0.11);
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
}

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

img {
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(18px, 4vw, 48px);
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(223, 229, 234, 0.8);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(22, 184, 181, 0.95), rgba(242, 163, 58, 0.85)),
    var(--panel);
  box-shadow: inset 0 0 0 7px rgba(255, 255, 255, 0.28);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  padding: 10px 13px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 600;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--ink);
  background: var(--soft);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 4px auto;
  background: var(--ink);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(420px, 1.18fr);
  gap: clamp(24px, 4vw, 58px);
  align-items: center;
  max-width: 1400px;
  min-height: calc(100vh - 76px);
  margin: 0 auto;
  padding: clamp(40px, 6vw, 86px) clamp(18px, 4vw, 48px) clamp(26px, 4vw, 44px);
}

.hero-copy {
  max-width: 590px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--teal-dark);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 20px;
  font-size: clamp(2.35rem, 6vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(1.65rem, 3vw, 2.8rem);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.1rem;
  line-height: 1.25;
}

.hero-copy p:not(.eyebrow),
.page-hero p,
.intro-grid > p {
  color: var(--muted);
  font-size: 1.08rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 8px;
  font-weight: 800;
  cursor: pointer;
}

.btn-primary {
  background: var(--ink);
  color: var(--paper);
}

.btn-primary:hover {
  background: #283241;
}

.btn-secondary {
  border-color: var(--line);
  background: var(--paper);
  color: var(--ink);
}

.btn-light {
  background: var(--paper);
  color: var(--ink);
}

.hero-media,
.image-panel,
.product-shot {
  background-image: url("../images/auralis-products.png");
  background-repeat: no-repeat;
}

.hero-media {
  min-height: clamp(360px, 48vw, 610px);
  border-radius: 8px;
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow);
}

.section-pad {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(44px, 7vw, 84px) clamp(18px, 4vw, 32px);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  padding-top: 0;
}

.metrics div {
  background: var(--soft);
  padding: 26px;
  border: 1px solid var(--line);
}

.metrics strong {
  display: block;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1;
}

.metrics span {
  color: var(--muted);
  font-weight: 600;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(280px, 1fr);
  gap: clamp(24px, 6vw, 86px);
  align-items: start;
}

.section-heading {
  max-width: 680px;
  margin-bottom: 28px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.product-card,
.support-card,
.values-grid article,
.product-detail,
.contact-form,
.contact-panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
}

.product-card {
  overflow: hidden;
}

.product-shot {
  min-height: 240px;
  background-color: var(--soft);
}

.product-air {
  background-size: 370% auto;
  background-position: 3% 58%;
}

.product-dock {
  background-size: 315% auto;
  background-position: 31% 58%;
}

.product-camera {
  background-size: 440% auto;
  background-position: 48% 58%;
}

.product-speaker {
  background-size: 360% auto;
  background-position: 70% 58%;
}

.product-control {
  background-size: 370% auto;
  background-position: 94% 58%;
}

.product-body {
  padding: 20px;
}

.product-body span,
.tag {
  display: inline-flex;
  margin-bottom: 10px;
  color: var(--teal-dark);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.product-body p,
.support-card p,
.values-grid p,
.timeline-list p,
.product-detail p,
.contact-panel p {
  color: var(--muted);
}

.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  margin-top: 28px;
  padding: clamp(38px, 6vw, 72px) clamp(18px, 5vw, 74px);
  color: var(--paper);
  background: linear-gradient(135deg, #202733 0%, #0f747b 58%, #32404f 100%);
}

.cta-band .eyebrow {
  color: #92fff7;
}

.cta-band h2 {
  max-width: 820px;
  margin-bottom: 0;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 34px clamp(18px, 4vw, 48px);
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.site-footer strong {
  color: var(--ink);
}

.site-footer p {
  max-width: 420px;
  margin: 6px 0 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-weight: 700;
  color: var(--ink);
}

.page-hero {
  max-width: 980px;
  padding: clamp(54px, 8vw, 110px) clamp(18px, 5vw, 48px) clamp(16px, 4vw, 32px);
}

.page-hero h1 {
  font-size: clamp(2.1rem, 5vw, 4.4rem);
}

.split-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 0.75fr);
  gap: 34px;
  align-items: center;
  max-width: var(--max);
}

.image-panel {
  min-height: 340px;
  border-radius: 8px;
  background-size: cover;
  background-position: center;
  box-shadow: var(--shadow);
}

.image-panel.compact {
  min-height: 230px;
  margin-bottom: 24px;
}

.product-catalog {
  display: grid;
  gap: 18px;
}

.product-detail {
  display: grid;
  grid-template-columns: minmax(260px, 0.62fr) minmax(0, 1fr);
  gap: clamp(22px, 4vw, 46px);
  align-items: center;
  padding: clamp(16px, 3vw, 28px);
}

.product-detail .product-shot {
  min-height: 290px;
  border-radius: 8px;
}

.clean-list {
  display: grid;
  gap: 8px;
  margin: 18px 0 0;
  padding: 0;
  list-style: none;
}

.clean-list li {
  padding-left: 22px;
  position: relative;
  color: var(--ink);
  font-weight: 600;
}

.clean-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
}

.values-grid,
.support-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.values-grid article,
.support-card {
  padding: 26px;
}

.number {
  display: inline-block;
  margin-bottom: 42px;
  color: var(--amber);
  font-weight: 800;
}

.timeline {
  padding-top: 20px;
}

.timeline-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.timeline-list div {
  padding: 24px;
  background: var(--paper);
}

.support-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 22px;
  border-radius: 8px;
  background: var(--soft);
  color: var(--teal-dark);
  font-weight: 900;
}

.faq {
  padding-top: 16px;
}

details {
  border-top: 1px solid var(--line);
}

details:last-child {
  border-bottom: 1px solid var(--line);
}

summary {
  cursor: pointer;
  padding: 22px 0;
  font-weight: 800;
}

details p {
  max-width: 780px;
  margin-bottom: 24px;
  color: var(--muted);
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.72fr);
  gap: 22px;
  align-items: start;
}

.contact-form,
.contact-panel {
  padding: clamp(20px, 4vw, 34px);
}

.contact-form {
  display: grid;
  gap: 18px;
}

label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 13px 14px;
  font: inherit;
  color: var(--ink);
  background: var(--paper);
}

textarea {
  resize: vertical;
}

.contact-lines {
  display: grid;
  gap: 12px;
  margin-top: 22px;
  color: var(--muted);
  font-weight: 700;
}

@media (max-width: 920px) {
  .hero,
  .intro-grid,
  .split-hero,
  .product-detail,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .hero-copy {
    max-width: 760px;
  }

  .product-grid,
  .values-grid,
  .support-grid,
  .timeline-list,
  .metrics {
    grid-template-columns: repeat(2, 1fr);
  }

  .product-detail .product-shot {
    min-height: 240px;
  }
}

@media (max-width: 720px) {
  .nav-toggle {
    display: inline-block;
  }

  .site-nav {
    position: absolute;
    left: 18px;
    right: 18px;
    top: 72px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--paper);
    box-shadow: var(--shadow);
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 13px 14px;
  }

  .hero-media {
    min-height: 310px;
  }

  .product-grid,
  .values-grid,
  .support-grid,
  .timeline-list,
  .metrics {
    grid-template-columns: 1fr;
  }

  .cta-band,
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 460px) {
  .site-header {
    padding-inline: 14px;
  }

  .brand {
    font-size: 0.95rem;
  }

  .hero-actions,
  .btn {
    width: 100%;
  }

  .hero-media,
  .image-panel {
    min-height: 260px;
  }

  .product-shot {
    min-height: 210px;
  }
}