:root {
  --ink: #111827;
  --muted: #5b6676;
  --line: #d9dee7;
  --paper: #f6f8fb;
  --white: #ffffff;
  --charcoal: #0d1118;
  --steel: #68798d;
  --blue: #1d6dff;
  --cyan: #6de7ff;
  --amber: #ffb02e;
  --green: #2bb673;
  --shadow: 0 18px 45px rgba(13, 17, 24, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

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

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

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  left: 0;
  right: 0;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
  padding: 16px clamp(18px, 4vw, 56px);
  color: var(--white);
  background: rgba(13, 17, 24, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
  font-size: 1.05rem;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  color: var(--charcoal);
  background: linear-gradient(135deg, var(--cyan), var(--white));
  border-radius: 8px;
}

.nav {
  justify-self: center;
  display: flex;
  align-items: center;
  gap: clamp(18px, 3vw, 34px);
  font-size: 0.94rem;
  color: rgba(255, 255, 255, 0.82);
}

.nav a:hover {
  color: var(--white);
}

.header-cta,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border: 0;
  border-radius: 8px;
  font-weight: 750;
  cursor: pointer;
}

.header-cta,
.button.primary {
  color: var(--white);
  background: var(--blue);
}

.button.secondary {
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: rgba(255, 255, 255, 0.08);
}

.menu-button {
  display: none;
  width: 42px;
  height: 42px;
  padding: 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: transparent;
}

.menu-button span {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--white);
}

.hero {
  position: relative;
  min-height: 94vh;
  display: grid;
  align-items: center;
  padding: 120px clamp(20px, 6vw, 80px) 80px;
  overflow: hidden;
  color: var(--white);
  background: var(--charcoal);
}

.hero-media {
  position: absolute;
  inset: 0;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(13, 17, 24, 0.94) 0%, rgba(13, 17, 24, 0.74) 43%, rgba(13, 17, 24, 0.28) 100%),
    linear-gradient(0deg, rgba(13, 17, 24, 0.84), rgba(13, 17, 24, 0.05) 42%);
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.hero-content {
  position: relative;
  width: min(760px, 100%);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 720px;
  margin-bottom: 24px;
  font-size: clamp(2.65rem, 6vw, 5.7rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 3.5vw, 3.5rem);
  line-height: 1.04;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 12px;
  font-size: 1.35rem;
}

.hero-copy {
  max-width: 620px;
  color: rgba(255, 255, 255, 0.78);
  font-size: clamp(1.03rem, 2vw, 1.22rem);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 34px 0 28px;
}

.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  max-width: 660px;
}

.hero-proof span {
  padding: 9px 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.8);
  background: rgba(255, 255, 255, 0.07);
  font-size: 0.9rem;
}

.section {
  padding: clamp(64px, 8vw, 110px) clamp(20px, 6vw, 80px);
}

.section-heading {
  max-width: 780px;
  margin-bottom: 34px;
}

.intro-grid,
.product-grid,
.quality-list {
  display: grid;
  gap: 18px;
}

.intro-grid {
  grid-template-columns: repeat(3, 1fr);
}

.intro-grid article,
.product-card,
.quality-list div,
.rfq-form {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 10px 24px rgba(13, 17, 24, 0.06);
}

.intro-grid article {
  padding: 24px;
}

.intro-grid strong {
  display: block;
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.intro-grid p,
.product-body p,
.split p,
.contact-copy p {
  color: var(--muted);
  line-height: 1.7;
}

.products {
  background: var(--white);
}

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

.product-card {
  overflow: hidden;
}

.product-visual {
  position: relative;
  height: 190px;
  overflow: hidden;
  background: var(--charcoal);
}

.product-visual::before,
.product-visual::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.product-visual::before {
  top: 38px;
  width: 54px;
  height: 112px;
  border-radius: 18px 18px 8px 8px;
  background: linear-gradient(180deg, #edf6ff, #7f8fa3 42%, #222936 43%, #121821);
  box-shadow: 0 0 36px rgba(109, 231, 255, 0.5);
}

.product-visual::after {
  top: 78px;
  width: 240px;
  height: 42px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.95), rgba(109, 231, 255, 0.48) 35%, transparent 72%);
  filter: blur(7px);
}

.product-visual.amber::after {
  background: radial-gradient(circle, rgba(255, 255, 255, 0.95), rgba(255, 176, 46, 0.55) 35%, transparent 72%);
}

.product-visual.white::after {
  background: radial-gradient(circle, rgba(255, 255, 255, 0.98), rgba(210, 230, 255, 0.6) 35%, transparent 72%);
}

.product-body {
  padding: 24px;
}

.product-type {
  margin-bottom: 8px;
  color: var(--blue);
  font-weight: 800;
  font-size: 0.8rem;
  text-transform: uppercase;
}

dl {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
}

dl div {
  display: grid;
  grid-template-columns: 82px 1fr;
  gap: 12px;
}

dt {
  color: var(--steel);
  font-weight: 800;
  font-size: 0.86rem;
}

dd {
  margin: 0;
  color: var(--ink);
  font-size: 0.92rem;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.9fr);
  align-items: center;
  gap: clamp(32px, 6vw, 82px);
  color: var(--white);
  background: linear-gradient(135deg, #111827 0%, #202938 52%, #102b42 100%);
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.stat-grid div {
  min-height: 136px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
}

.stat-grid strong {
  display: block;
  margin-bottom: 10px;
  font-size: 2.1rem;
}

.stat-grid span {
  color: rgba(255, 255, 255, 0.74);
}

.quality-list {
  max-width: 980px;
}

.quality-list div {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px;
  color: var(--muted);
  line-height: 1.6;
}

.quality-list span {
  flex: 0 0 12px;
  width: 12px;
  height: 12px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 6px rgba(43, 182, 115, 0.12);
}

.contact {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(340px, 0.8fr);
  align-items: start;
  gap: clamp(32px, 6vw, 80px);
  background: var(--white);
}

.contact-lines {
  display: grid;
  gap: 12px;
  margin-top: 28px;
  font-weight: 800;
}

.contact-lines a {
  color: var(--blue);
}

.rfq-form {
  display: grid;
  gap: 16px;
  padding: clamp(20px, 4vw, 32px);
}

label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-weight: 750;
  font-size: 0.92rem;
}

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

textarea {
  resize: vertical;
}

input:focus,
textarea:focus {
  outline: 3px solid rgba(29, 109, 255, 0.18);
  border-color: var(--blue);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 26px clamp(20px, 6vw, 80px);
  color: rgba(255, 255, 255, 0.72);
  background: var(--charcoal);
}

@media (max-width: 920px) {
  .site-header {
    grid-template-columns: auto auto;
  }

  .nav,
  .header-cta {
    display: none;
  }

  .menu-button {
    display: block;
    justify-self: end;
  }

  .site-header.menu-open .nav {
    position: absolute;
    top: 67px;
    left: 16px;
    right: 16px;
    display: grid;
    justify-items: start;
    gap: 0;
    padding: 10px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 8px;
    background: rgba(13, 17, 24, 0.96);
  }

  .site-header.menu-open .nav a {
    width: 100%;
    padding: 14px;
  }

  .hero {
    min-height: 92vh;
    padding-top: 108px;
  }

  .hero-media::after {
    background:
      linear-gradient(90deg, rgba(13, 17, 24, 0.95), rgba(13, 17, 24, 0.7)),
      linear-gradient(0deg, rgba(13, 17, 24, 0.88), rgba(13, 17, 24, 0.2));
  }

  .intro-grid,
  .product-grid,
  .split,
  .contact {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 560px) {
  .hero {
    min-height: 90vh;
  }

  h1 {
    font-size: 2.55rem;
  }

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

  .hero-proof {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero-proof span {
    text-align: center;
  }

  .stat-grid {
    grid-template-columns: 1fr;
  }

  dl div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .site-footer {
    display: grid;
  }
}