:root {
  --bg: #f3f6f8;
  --surface: #ffffff;
  --ink: #17202a;
  --muted: #5d6873;
  --brand: #153a73;
  --brand-dark: #0f2d5c;
  --line: #dce5eb;
  --shadow: 0 14px 38px rgba(10, 27, 44, 0.14);
  --radius: 14px;
  --steel: #7f8b96;
  --id-white: #f3f5f7;
  --id-yellow: #f2c94c;
  --id-orange: #e67e22;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at top right, #e9f9ff 0, transparent 48%), var(--bg);
}

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

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

.container {
  width: min(1120px, 92vw);
  margin-inline: auto;
}

.hero {
  position: relative;
  min-height: 68vh;
  display: grid;
  align-items: start;
  overflow: hidden;
  background: linear-gradient(120deg, #0c2a3d 0%, #184f6c 46%, #2f728f 100%);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url("../img/hero-photo.jpg");
  background-size: cover;
  background-position: center 28%;
  opacity: 0.6;
}

.home-page .hero::before {
  background-image: url("../img/hero-image-index.jpg");
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 16, 25, 0.25), rgba(6, 16, 25, 0.55));
}

.hero__content {
  position: relative;
  z-index: 2;
  color: #f6fbff;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  padding-top: 2rem;
  padding-bottom: 5rem;
  animation: rise 700ms ease-out both;
}

.hero__content.container {
  width: 100%;
  margin-inline: 0;
  padding-inline: clamp(1rem, 3vw, 2.25rem);
}

.hero__logo {
  width: clamp(170px, 24vw, 250px);
  height: auto;
  display: block;
  border-radius: 14px;
  box-shadow: 0 14px 32px rgba(6, 16, 25, 0.32);
}

h1 {
  margin: 1rem 0 0.85rem;
  font-size: clamp(2rem, 5vw, 3.8rem);
  line-height: 1.07;
  max-width: 12ch;
}

.lead {
  margin: 0 0 1.7rem;
  font-size: clamp(1rem, 2.2vw, 1.25rem);
  max-width: 56ch;
  color: #e4eff7;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.button {
  display: inline-block;
  border-radius: 10px;
  font-weight: 700;
  padding: 0.8rem 1.15rem;
  transition: transform 140ms ease, background-color 140ms ease;
}

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

.button--primary {
  background: var(--brand);
  color: #fff;
}

.button--primary:hover { background: var(--brand-dark); }

.products {
  margin-top: 1.6rem;
  position: relative;
  z-index: 3;
  padding-bottom: 1.5rem;
}

.section-head {
  background: var(--surface);
  box-shadow: var(--shadow);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  margin-bottom: 1.2rem;
}

.section-head h2 {
  margin: 0;
  font-size: clamp(1.4rem, 2.2vw, 2rem);
}

.section-head p { color: var(--muted); margin: 0.45rem 0 0; }

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.2rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 170ms ease, box-shadow 170ms ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(12, 25, 41, 0.19);
}

.card img {
  aspect-ratio: 16 / 9;
  object-fit: cover;
  background: #dde8ef;
}

.card h3 {
  margin: 0;
  padding: 1rem 1rem 0.35rem;
  font-size: 1.65rem;
}

.card p {
  margin: 0;
  color: var(--muted);
  padding: 0 1rem 1.15rem;
  line-height: 1.45;
}

.card--text {
  padding: 1rem 1rem 1.15rem;
}

.card--text h3 {
  padding: 0;
  margin: 0 0 0.45rem;
}

.card--text p {
  padding: 0;
}

.doc-store {
  margin-block: 1.6rem 2rem;
  padding: 1.3rem;
  border: 1px solid var(--line);
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.doc-store h2 { margin: 0 0 0.35rem; }
.doc-store p { margin: 0.25rem 0 0.9rem; color: var(--muted); }

.button--ghost {
  border: 1px solid var(--brand);
  color: var(--brand-dark);
  background: #e8f7fd;
}

.note {
  font-size: 0.9rem;
  color: #6c7783;
  margin-top: 0.8rem;
}

.site-footer {
  border-top: 1px solid #d8e2ea;
  background: #f9fbfc;
}

.site-footer p {
  margin: 0;
  color: #66707a;
  padding: 1rem 0;
  text-align: center;
}

.page-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
  background: radial-gradient(circle at top left, #e6f6fc, transparent 50%), var(--bg);
}

.simple-panel {
  width: min(760px, 94vw);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 2rem;
}

.simple-panel h1 { margin-top: 0; font-size: clamp(1.5rem, 3.2vw, 2.3rem); max-width: none; color: var(--ink); }
.simple-panel p { color: var(--muted); }

.inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1rem;
}

.spec-page {
  margin: 0;
  padding: 2rem 0 3rem;
  background: radial-gradient(circle at top left, #e6f6fc, transparent 50%), var(--bg);
}

.spec-wrap {
  width: min(980px, 92vw);
  margin: 0 auto;
}

.spec-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.4rem;
}

.accent-green .spec-panel { border-top: 4px solid #2e7d32; }
.accent-red .spec-panel { border-top: 4px solid #b3261e; }

.spec-panel h1,
.spec-panel h2,
.spec-panel h3 {
  max-width: none;
}

.spec-panel h1 {
  margin: 0 0 0.45rem;
  font-size: clamp(1.6rem, 3.2vw, 2.4rem);
}

.positioning-line {
  margin: 0;
  color: var(--brand-dark);
  font-weight: 700;
}

.overview {
  color: var(--muted);
  line-height: 1.5;
}

.spec-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.spec-block {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.9rem;
  background: #fbfdfe;
}

.spec-block h2 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.spec-block ul {
  margin: 0;
  padding-left: 1.1rem;
  color: var(--muted);
  line-height: 1.45;
}

.spec-list {
  display: grid;
  gap: 0.5rem;
}

.spec-row {
  display: grid;
  grid-template-columns: 145px 1fr;
  gap: 0.6rem;
  align-items: baseline;
}

.spec-row dt {
  margin: 0;
  font-weight: 700;
  color: #26313d;
}

.spec-row dd {
  margin: 0;
  color: var(--muted);
}

.downloads {
  margin-top: 1rem;
  border-top: 1px solid var(--line);
  padding-top: 0.9rem;
}

.downloads h2 {
  margin: 0 0 0.5rem;
  font-size: 1.1rem;
}

.download-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.download-links a {
  border: 1px solid var(--line);
  padding: 0.55rem 0.8rem;
  border-radius: 8px;
  color: #264458;
  background: #f3f9fc;
}

.set-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 1rem;
}

.set-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
}

.set-card__head {
  padding: 0.75rem 0.85rem;
  font-weight: 700;
  color: #18222d;
  background: #fff;
  border-left: 8px solid var(--steel);
}

.set-card__body {
  padding: 0.85rem;
}

.set-card__body p {
  margin: 0 0 0.5rem;
  color: var(--muted);
}

.set-white .set-card__head { border-left-color: var(--id-white); }
.set-yellow .set-card__head { border-left-color: var(--id-yellow); }
.set-orange .set-card__head { border-left-color: var(--id-orange); }

@keyframes rise {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 930px) {
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 640px) {
  .hero { min-height: 60vh; }
  .hero__content {
    padding-top: 1.1rem;
    padding-bottom: 3.2rem;
  }
  .hero__logo {
    width: clamp(145px, 38vw, 210px);
    border-radius: 11px;
  }
  .products { margin-top: 1rem; }
  .product-grid { grid-template-columns: 1fr; }
  .card h3 { font-size: 1.45rem; }
  .spec-grid { grid-template-columns: 1fr; }
  .spec-row { grid-template-columns: 1fr; }
  .set-grid { grid-template-columns: 1fr; }
}