:root {
  --ink: #101827;
  --muted: #5f6b7a;
  --blue: #004a98;
  --blue-dark: #06346f;
  --cyan: #02a9df;
  --line: #dce6f1;
  --panel: #f6f9fc;
  --white: #ffffff;
  --shadow: 0 18px 46px rgba(15, 42, 75, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 1px 1px, rgba(0, 74, 152, 0.1) 1px, transparent 0) 0 0 / 38px 38px,
    var(--white);
  line-height: 1.6;
}

a {
  color: inherit;
}

img {
  max-width: 100%;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 78px;
  padding: 12px clamp(18px, 5vw, 76px);
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 5px 22px rgba(9, 38, 72, 0.08);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.brand img {
  width: 52px;
  height: 52px;
  object-fit: contain;
}

.brand strong,
.brand small {
  display: block;
}

.brand strong {
  color: #0a1220;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(0.92rem, 1.7vw, 1.18rem);
  line-height: 1.05;
}

.brand small {
  color: var(--blue);
  font-size: 0.68rem;
  font-weight: 800;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 3px;
}

.site-nav a {
  padding: 10px 11px;
  border-radius: 5px;
  color: #0c1a2d;
  font-size: 0.78rem;
  font-weight: 800;
  text-decoration: none;
  text-transform: uppercase;
}

.site-nav a:hover,
.site-nav a.active {
  background: #edf6ff;
  color: var(--blue);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 9px 12px;
  background: var(--white);
  color: var(--ink);
  font-weight: 800;
}

.hero,
.section,
.why-section,
.page-hero,
.content-grid,
.product-list-section,
.gallery-grid,
.contact-layout {
  position: relative;
  padding: clamp(48px, 7vw, 84px) clamp(18px, 5vw, 76px);
}

.brochure-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.86fr) minmax(360px, 1fr);
  align-items: center;
  min-height: calc(100vh - 78px);
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.96), rgba(255, 255, 255, 0.78) 44%, rgba(240, 247, 254, 0.6)),
    radial-gradient(circle at 10% 18%, rgba(0, 74, 152, 0.08), transparent 28%),
    var(--white);
}

.brochure-hero::before,
.why-section::before,
.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
  background-image:
    radial-gradient(circle at 1px 1px, rgba(0, 74, 152, 0.18) 1px, transparent 0);
  background-size: 34px 34px;
  mask-image: linear-gradient(90deg, #000 0, transparent 34%, transparent 66%, #000 100%);
}

.hero-copy {
  position: relative;
  z-index: 2;
  max-width: 610px;
}

.hero-action-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 22px;
}

.welcome {
  margin: 0;
  color: #2c3545;
  font-size: clamp(1.15rem, 2vw, 1.6rem);
}

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

h1 {
  margin-bottom: 14px;
  font-size: clamp(2.35rem, 6vw, 5.4rem);
  line-height: 0.98;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(1.85rem, 3.6vw, 3.1rem);
  line-height: 1.08;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.tagline {
  color: var(--blue-dark);
  font-size: clamp(1rem, 1.6vw, 1.32rem);
  font-weight: 800;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 11px 20px;
  font-weight: 800;
  text-decoration: none;
  cursor: pointer;
  transition: background 180ms ease, transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.button.primary {
  background: var(--blue-dark);
  color: var(--white);
  box-shadow: 0 12px 25px rgba(0, 74, 152, 0.24);
}

.button.primary:focus-visible {
  outline: 3px solid var(--cyan);
  outline-offset: 2px;
}

.button.primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.button.ghost {
  border-color: var(--line);
  background: var(--white);
  color: var(--blue-dark);
}

.hero-photo {
  position: relative;
  z-index: 1;
  height: auto;
  min-height: 0;
  padding: 10px;
  background: var(--white);
  overflow: hidden;
  clip-path: polygon(14% 0, 100% 0, 100% 100%, 0 100%);
  box-shadow: var(--shadow);
}

.hero-photo img {
  width: 100%;
  height: auto;
  aspect-ratio: 1215 / 872;
  object-fit: contain;
  background: var(--white);
}

.section-heading {
  max-width: 820px;
  margin-bottom: 32px;
}

.centered {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.section-heading p,
.page-hero p,
.split p,
.content-grid p,
.contact-card p,
.why-card p {
  color: var(--muted);
}

.why-section {
  background: var(--white);
}

.why-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 22px;
  max-width: 1100px;
  margin: 0 auto;
}

.why-card {
  padding: 18px;
  text-align: center;
}

.line-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 84px;
  height: 84px;
  margin-bottom: 16px;
  color: var(--blue-dark);
}

.line-icon svg {
  width: 74px;
  height: 74px;
  fill: none;
  stroke: currentColor;
  stroke-width: 3.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.action-row {
  margin-top: 34px;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(300px, 1fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  background: var(--panel);
}

.photo-stack {
  display: grid;
  grid-template-columns: 1fr 0.72fr;
  gap: 16px;
  align-items: end;
}

.photo-stack img,
.page-hero-image,
.gallery-grid img {
  display: block;
  width: 100%;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: var(--shadow);
}

.photo-stack img:first-child {
  aspect-ratio: 4 / 3;
}

.photo-stack img:last-child {
  aspect-ratio: 3 / 3.4;
}

.product-band {
  background: var(--white);
}

.featured-products {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  max-width: 980px;
  margin: 0 auto;
}

.molecule-card {
  min-height: 188px;
  border: 2px solid var(--blue-dark);
  border-radius: 10px;
  padding: 12px 12px 14px;
  background: var(--white);
  text-align: center;
  box-shadow: 0 10px 26px rgba(15, 42, 75, 0.08);
}

.molecule-card h3 {
  margin: 12px 0 0;
  color: #101827;
  font-size: 0.9rem;
  line-height: 1.15;
}

.formula {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 82px;
  margin: 0;
  border-radius: 8px;
  background:
    linear-gradient(rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.92)),
    radial-gradient(circle at 1px 1px, rgba(0, 74, 152, 0.18) 1px, transparent 0) 0 0 / 18px 18px;
  color: #0d1728;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.3rem, 2.4vw, 2rem);
  font-weight: 800;
  line-height: 1.1;
  text-align: center;
  white-space: nowrap;
}

.formula sub {
  font-size: 0.58em;
  line-height: 0;
}

.structure-image {
  display: block;
  width: 100%;
  height: 112px;
  object-fit: contain;
  mix-blend-mode: multiply;
}

.molecule-art {
  position: relative;
  height: 104px;
  margin: 0 auto 4px;
  max-width: 150px;
}

.molecule-art::before,
.molecule-art::after {
  content: "";
  position: absolute;
  left: 34px;
  width: 80px;
  top: 50px;
  height: 2px;
  background: #101827;
  transform: rotate(24deg);
  transform-origin: center;
}

.molecule-art::after {
  transform: rotate(-24deg);
}

.molecule-art span {
  position: absolute;
  display: inline-grid;
  place-items: center;
  min-width: 34px;
  height: 22px;
  padding: 0 3px;
  border: 1.6px solid #101827;
  border-radius: 999px;
  background: var(--white);
  color: #101827;
  font-size: 0.58rem;
  font-weight: 800;
  line-height: 1;
  z-index: 2;
}

.molecule-art span:nth-of-type(1) {
  left: 54px;
  top: 0;
}

.molecule-art span:nth-of-type(2) {
  left: 0;
  top: 38px;
}

.molecule-art span:nth-of-type(3) {
  right: 0;
  top: 38px;
}

.molecule-art span:nth-of-type(4) {
  left: 54px;
  bottom: 0;
}

.molecule-art b {
  position: absolute;
  left: 61px;
  top: 42px;
  z-index: 3;
  display: inline-grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border: 2px solid #101827;
  border-radius: 50%;
  background: var(--white);
  color: #101827;
  font-size: 0.72rem;
  font-weight: 800;
}

.disodium::before,
.disodium::after {
  transform: rotate(34deg);
}

.disodium::after {
  transform: rotate(-34deg);
}

.citric span,
.potassium span {
  min-width: 38px;
}

.mini-molecule {
  position: relative;
  display: inline-block;
  flex: 0 0 auto;
  width: 28px;
  height: 22px;
  margin-right: 9px;
  vertical-align: middle;
}

.mini-molecule::before,
.mini-molecule::after {
  content: "";
  position: absolute;
  left: 4px;
  right: 4px;
  top: 10px;
  height: 1.5px;
  background: currentColor;
}

.mini-molecule::before {
  transform: rotate(28deg);
}

.mini-molecule::after {
  transform: rotate(-28deg);
}

.brochure-list span {
  display: inline-flex;
  align-items: center;
}

.compact-products,
.brochure-list,
.pill-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0 0 28px;
  padding: 0;
  list-style: none;
}

.compact-products span,
.brochure-list span,
.pill-list li {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px 14px;
  background: var(--white);
  color: var(--blue-dark);
  font-weight: 800;
  box-shadow: 0 8px 22px rgba(15, 42, 75, 0.06);
}

.cert-section {
  background: var(--panel);
}

.cert-list {
  display: grid;
  grid-template-columns: repeat(7, minmax(80px, 1fr));
  gap: 18px;
  align-items: center;
}

.cert-list img {
  width: 100%;
  height: 98px;
  object-fit: contain;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
  background: var(--white);
  box-shadow: 0 10px 28px rgba(15, 42, 75, 0.08);
}

.page-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.72fr);
  gap: clamp(28px, 5vw, 64px);
  align-items: center;
  overflow: hidden;
  background: linear-gradient(120deg, #f7fbff, #ffffff);
}

.page-hero > * {
  position: relative;
  z-index: 1;
}

.hero-notes {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.hero-note {
  display: inline-flex;
  align-items: center;
  padding: 12px 16px;
  border-radius: 999px;
  background: rgba(0, 74, 152, 0.1);
  color: var(--blue-dark);
  font-weight: 700;
  font-size: 0.92rem;
  border: 1px solid rgba(0, 74, 152, 0.18);
}

.page-hero.compact {
  padding-bottom: clamp(44px, 6vw, 68px);
}

.page-hero-image {
  max-height: 340px;
  aspect-ratio: 4 / 2.75;
  object-fit: contain;
  background: var(--white);
}

.logo-panel {
  padding: 44px;
  object-fit: contain;
  background: var(--white);
}

.content-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.matrix-section {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 28px;
  padding: clamp(48px, 7vw, 84px) clamp(18px, 5vw, 76px);
  background: var(--white);
}

.mini-photo-row {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.mini-photo-row img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border: 2px solid var(--blue-dark);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

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

.content-grid article,
.contact-card,
.contact-form {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 14px 36px rgba(15, 42, 75, 0.08);
}

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

.check-list {
  margin: 0;
  padding-left: 22px;
  color: var(--muted);
  font-weight: 700;
}

.check-list li + li {
  margin-top: 10px;
}

.product-list-section {
  background: var(--white);
}

.products-showcase {
  position: relative;
  padding: clamp(46px, 7vw, 82px) clamp(18px, 5vw, 76px);
  background:
    linear-gradient(rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.92)),
    radial-gradient(circle at 1px 1px, rgba(0, 74, 152, 0.14) 1px, transparent 0) 0 0 / 34px 34px;
}

.product-structure-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  max-width: 1060px;
  margin: 0 auto 26px;
}

.structure-card {
  min-height: 176px;
  border: 1px solid #d7e3ef;
  border-radius: 18px;
  padding: 20px 16px;
  background: #ffffff;
  text-align: center;
  box-shadow: 0 18px 36px rgba(15, 42, 75, 0.09);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.structure-card:hover,
.structure-card:focus-within {
  border-color: var(--blue-dark);
  box-shadow: 0 22px 42px rgba(15, 42, 75, 0.14);
  transform: translateY(-3px);
}

.structure-card h3 {
  min-height: 34px;
  margin: 0 0 10px;
  color: #111827;
  font-size: 0.95rem;
  line-height: 1.15;
  font-weight: 800;
}

.structure-card .structure-image {
  height: 112px;
}

.structure-card .formula {
  min-height: 68px;
  font-size: clamp(1.05rem, 1.7vw, 1.48rem);
}

.structure-card small {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.brochure-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.spec-block {
  max-width: 960px;
  margin: 8px auto 42px;
  overflow-x: auto;
}

.spec-block h3 {
  margin: 0 0 16px;
  font-size: 1.3rem;
}

.spec-note {
  display: grid;
  gap: 10px;
  padding: 22px 20px;
  border-radius: 16px;
  background: rgba(0, 74, 152, 0.06);
  border: 1px dashed rgba(0, 74, 152, 0.18);
  color: var(--blue-dark);
}

.spec-note .spec-item {
  display: flex;
  gap: 10px;
  align-items: baseline;
  flex-wrap: wrap;
  font-size: 0.96rem;
  line-height: 1.5;
}

.spec-note .spec-item strong {
  display: inline-block;
  min-width: 140px;
  font-weight: 800;
}

.spec-block table {
  width: 100%;
  min-width: 680px;
  border-collapse: collapse;
  overflow: hidden;
  border: 2px solid var(--blue-dark);
  border-radius: 8px;
  background: var(--white);
}

.spec-block th,
.spec-block td {
  padding: 9px 12px;
  border: 1px solid #9db1c6;
  text-align: left;
  font-size: 0.9rem;
}

.spec-block th {
  color: var(--blue-dark);
  font-weight: 800;
  background: #f0f6fb;
}

.applications-block {
  max-width: 900px;
  margin: 0 auto;
}

.applications-block h2 {
  margin-bottom: 26px;
  text-align: center;
  font-size: clamp(1.9rem, 4vw, 3rem);
}

.application-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 48px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.application-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #16243a;
  font-weight: 800;
}

.app-icon {
  position: relative;
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  border: 2px solid #4f6e88;
  border-radius: 5px;
}

.app-icon::before,
.app-icon::after {
  content: "";
  position: absolute;
  background: #4f6e88;
}

.app-icon::before {
  left: 5px;
  top: 4px;
  width: 8px;
  height: 2px;
  box-shadow: 0 5px 0 #4f6e88, 0 10px 0 #4f6e88;
}

.app-icon::after {
  right: -5px;
  bottom: -4px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: transparent;
  border: 2px solid #4f6e88;
}

.quote-row {
  display: flex;
  justify-content: center;
  margin-top: 48px;
}

.quote-button {
  min-height: 42px;
  border: 2px solid var(--blue-dark);
  border-radius: 999px;
  background: var(--white);
  color: var(--blue-dark);
  text-transform: uppercase;
  box-shadow: 0 8px 20px rgba(15, 42, 75, 0.08);
  transition: background 180ms ease, color 180ms ease, transform 180ms ease, border-color 180ms ease;
}

.quote-button:hover,
.quote-button:focus-visible {
  background: var(--blue-dark);
  color: var(--white);
  border-color: var(--blue-dark);
  transform: translateY(-1px);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  background: var(--white);
}

.gallery-grid figure {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 14px 36px rgba(15, 42, 75, 0.08);
}

.gallery-grid img {
  height: 250px;
  border-radius: 0;
  box-shadow: none;
}

.gallery-grid figcaption {
  padding: 14px 16px;
  color: var(--blue-dark);
  font-weight: 800;
}

.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.82fr);
  gap: 24px;
}

.contact-redesign {
  align-items: stretch;
  background:
    linear-gradient(rgba(255, 255, 255, 0.94), rgba(255, 255, 255, 0.94)),
    radial-gradient(circle at 1px 1px, rgba(0, 74, 152, 0.12) 1px, transparent 0) 0 0 / 34px 34px;
}

.contact-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: 28px;
}

.terminal-form {
  display: block;
}

.terminal-form h2 {
  margin-bottom: 18px;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
}

.terminal-form .form-row {
  margin-bottom: 12px;
}

.terminal-form label {
  margin-bottom: 3px;
  font-size: 0.86rem;
}

.terminal-form input,
.terminal-form select,
.terminal-form textarea {
  border: 2px solid #6f849b;
  border-radius: 999px;
  padding: 8px 12px;
}

.terminal-form textarea {
  border-radius: 8px;
}

.simple-contact-form {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-content: start;
}

.simple-contact-form h2 {
  grid-column: 1 / -1;
  margin-bottom: 2px;
  color: var(--blue-dark);
  font-size: clamp(1.7rem, 3vw, 2.5rem);
}

.simple-contact-form input,
.simple-contact-form select,
.simple-contact-form textarea {
  border: 2px solid #8ba0b5;
  border-radius: 8px;
  background: #fbfdff;
}

.simple-contact-form textarea {
  min-height: 150px;
}

.form-success {
  grid-column: 1 / -1;
  margin: 0;
  border: 1px solid #b8e1c4;
  border-radius: 8px;
  padding: 16px 18px;
  background: #effaf2;
  color: #17632b;
  font-weight: 700;
  font-size: 0.95rem;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.form-row.full,
.submit-button {
  grid-column: 1 / -1;
}

label {
  display: block;
  margin-bottom: 8px;
  color: var(--ink);
  font-weight: 800;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 13px 14px;
  color: var(--ink);
  font: inherit;
}

textarea {
  resize: vertical;
}

input:focus,
select:focus,
textarea:focus {
  outline: 3px solid rgba(2, 169, 223, 0.18);
  border-color: var(--cyan);
}

.contact-card {
  padding: 28px;
}

.contact-info-panel {
  display: grid;
  gap: 14px;
  align-content: start;
}

.contact-info-panel h2 {
  margin-bottom: 4px;
  color: var(--blue-dark);
}

.contact-info-panel p {
  margin-bottom: 0;
}

.map-frame {
  overflow: hidden;
  min-height: 220px;
  border: 2px solid #8ba0b5;
  border-radius: 10px;
  background: var(--panel);
}

.map-frame iframe {
  display: block;
  width: 100%;
  height: 260px;
  min-height: 200px;
  border: 0;
}

.contact-methods {
  margin-top: 4px;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.contact-methods h3 {
  margin-bottom: 8px;
  color: var(--blue-dark);
}

.contact-cert-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(22px, 5vw, 58px);
  padding: 20px clamp(18px, 5vw, 76px) 58px;
  background: var(--white);
}

.contact-cert-strip img {
  max-width: 120px;
  max-height: 78px;
  object-fit: contain;
}

.contact-card hr {
  border: 0;
  border-top: 1px solid var(--line);
  margin: 22px 0;
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 28px clamp(18px, 5vw, 76px);
  background: var(--blue-dark);
  color: var(--white);
}

.site-footer p {
  margin: 0;
}

.site-footer a {
  color: var(--white);
  font-weight: 800;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  text-decoration: none;
  transition: background 180ms ease, transform 180ms ease, border-color 180ms ease;
}

.site-footer a:hover,
.site-footer a:focus {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.65);
  transform: translateY(-1px);
}

@media (max-width: 980px) {
  .nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 10px 18px 18px;
    background: var(--white);
    border-bottom: 1px solid var(--line);
  }

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

  .brochure-hero,
  .split,
  .page-hero,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .brochure-hero {
    min-height: auto;
  }

  .hero-photo {
    clip-path: none;
  }

  .why-grid,
  .content-grid,
  .gallery-grid,
  .brochure-list,
  .featured-products,
  .product-structure-grid,
  .matrix-section,
  .mini-photo-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cert-list {
    grid-template-columns: repeat(4, minmax(80px, 1fr));
  }
}

@media (max-width: 420px) {
  .brand span {
    display: none;
  }

  .brand img {
    width: 46px;
    height: 46px;
  }

  h1 {
    font-size: clamp(2.1rem, 12vw, 3.1rem);
  }
}

@media (max-width: 760px) {
  .hero-photo {
    min-height: 260px;
  }

  .why-grid,
  .content-grid,
  .gallery-grid,
  .brochure-list,
  .cert-list,
  .featured-products,
  .product-structure-grid,
  .application-list,
  .matrix-section,
  .mini-photo-row {
    grid-template-columns: 1fr;
  }

  .photo-stack,
  .contact-form {
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .page-hero-image.logo-panel {
    max-width: 200px;
    margin: 0 auto;
  }

  .map-frame iframe {
    height: 200px;
  }

  .contact-form {
    padding: 20px 16px;
  }

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