* { box-sizing: border-box; }
:root {
  --blue: #8fb8dc;
  --blue-dark: #4f83b3;
  --blue-deep: #315e88;
  --blue-soft: #edf5fb;
  --cream: #fbfaf7;
  --ink: #213143;
  --muted: #697786;
  --line: #dfe7ee;
  --white: #ffffff;
  --gold: #dda52f;
}
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: "DM Sans", sans-serif;
}
a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }

.announcement {
  background: var(--blue-dark);
  color: white;
  text-align: center;
  padding: 9px 16px;
  font-size: 14px;
}

.site-header {
  height: 88px;
  padding: 0 5.5vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: white;
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(0,0,0,.05);
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { font-size: 36px; }
.brand-name {
  font-family: "Libre Baskerville", serif;
  font-size: 30px;
  color: var(--blue-deep);
}
.brand-subtitle { font-size: 11px; letter-spacing: 4px; text-align: center; color: #4e5a67; }
.main-nav { display: flex; gap: 40px; align-items: center; }
.main-nav a { padding: 30px 0 12px; position: relative; }
.main-nav a.active::after,
.main-nav a:hover::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 4px;
  height: 2px;
  background: var(--blue-dark);
}
.menu-toggle { display: none; background: none; border: 0; font-size: 28px; color: var(--blue-deep); }

.hero {
  min-height: 370px;
  display: grid;
  grid-template-columns: 43% 57%;
  background: var(--cream);
}
.hero-copy {
  padding: 52px 5.5vw;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}
.eyebrow { letter-spacing: 2px; font-size: 12px; font-weight: 700; color: var(--blue-deep); }
h1, h2, h3 { font-family: "Libre Baskerville", serif; }
h1 { font-size: clamp(42px, 4vw, 64px); line-height: 1.08; margin: 8px 0 16px; color: var(--blue-deep); }
.hero-copy > p:not(.eyebrow) { max-width: 430px; line-height: 1.6; }
.hero-image {
  min-height: 370px;
  background-image:
    linear-gradient(90deg, rgba(251,250,247,.10), rgba(251,250,247,0)),
    url("images/hero.jpg");
  background-size: cover;
  background-position: center;
}
.primary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 14px;
  border: none;
  background: var(--blue-dark);
  color: white;
  padding: 13px 22px;
  border-radius: 6px;
  font-weight: 600;
  transition: .2s ease;
}
.primary-btn:hover { background: var(--blue-deep); transform: translateY(-1px); }
.primary-btn.full { width: 100%; }

.catalogue-section {
  padding: 34px 5.5vw 26px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 36px;
  align-items: start;
}
.section-heading-row {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-end;
  margin-bottom: 20px;
}
.section-heading-row h2, .how-to h2 {
  margin: 0 0 14px;
  color: var(--blue-deep);
  font-size: 30px;
}
.filters { display: flex; gap: 10px; flex-wrap: wrap; }
.filter {
  border: 1px solid var(--line);
  background: white;
  padding: 8px 16px;
  border-radius: 999px;
  color: var(--ink);
}
.filter.active, .filter:hover { background: var(--blue-dark); color: white; border-color: var(--blue-dark); }
.sort-control {
  display: flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--line);
  padding: 6px 10px 6px 14px;
  border-radius: 6px;
  white-space: nowrap;
}
.sort-control span { font-size: 13px; color: var(--muted); }
.sort-control select { border: none; outline: none; background: white; }

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}
.product-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  background: white;
  transition: .2s ease;
}
.product-card:hover { transform: translateY(-3px); box-shadow: 0 12px 30px rgba(49,94,136,.10); }
.product-image {
  aspect-ratio: 1 / 1;
  width: 100%;
  object-fit: cover;
  display: block;
  background: #f4f6f8;
}
.product-info { padding: 12px; }
.product-info h3 { font-size: 16px; margin: 0 0 5px; }
.product-material { color: var(--muted); font-size: 12px; min-height: 18px; }
.rating { color: var(--gold); font-size: 13px; margin: 8px 0; }
.rating span { color: var(--muted); }
.price { font-weight: 700; margin-bottom: 10px; }
.view-btn {
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--blue-dark);
  background: white;
  color: var(--blue-deep);
  border-radius: 5px;
}
.view-btn:hover { background: var(--blue-soft); }

.request-card {
  background: linear-gradient(180deg, #f3f8fc 0%, #edf5fb 100%);
  border-radius: 14px;
  padding: 22px;
  position: sticky;
  top: 112px;
}
.request-title { display: flex; gap: 14px; margin-bottom: 18px; }
.request-icon {
  width: 50px; height: 50px; flex: 0 0 50px;
  border: 1px solid var(--blue-dark);
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 23px;
}
.request-title h3 { margin: 3px 0 6px; font-size: 21px; color: var(--blue-deep); }
.request-title p { margin: 0; font-size: 13px; line-height: 1.45; }
.request-card label { display: block; font-size: 12px; margin-bottom: 12px; }
.request-card label span { color: #c24c4c; }
.request-card input, .request-card textarea {
  margin-top: 5px;
  width: 100%;
  border: 1px solid #d3dde6;
  border-radius: 5px;
  padding: 11px 12px;
  background: white;
  outline: none;
}
.request-card input:focus, .request-card textarea:focus { border-color: var(--blue-dark); box-shadow: 0 0 0 3px rgba(79,131,179,.1); }
.form-note { font-size: 12px; color: var(--blue-deep); }
.form-success {
  margin-top: 12px;
  padding: 12px;
  background: white;
  border-left: 4px solid var(--blue-dark);
  border-radius: 4px;
  font-size: 12px;
  line-height: 1.45;
}

.benefits {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: #f7fbfe;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 18px 5.5vw;
}
.benefits article { display: flex; gap: 14px; align-items: center; padding: 0 18px; border-right: 1px solid var(--line); }
.benefits article:last-child { border-right: none; }
.benefit-icon { font-size: 28px; color: var(--blue-deep); }
.benefits h4 { margin: 0 0 4px; color: var(--blue-deep); }
.benefits p { margin: 0; font-size: 12px; color: var(--muted); line-height: 1.5; }

.how-to {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 50px;
  padding: 70px 5.5vw;
  background: white;
}
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.steps div { background: var(--blue-soft); border-radius: 10px; padding: 20px; }
.steps strong {
  width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--blue-dark); color: white;
}
.steps p { color: var(--muted); line-height: 1.5; font-size: 14px; }

footer {
  padding: 18px 5.5vw;
  background: #f4f9fd;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  font-size: 13px;
  color: var(--blue-deep);
}
.footer-links { display: flex; gap: 28px; }

.modal {
  position: fixed; inset: 0;
  background: rgba(27,45,62,.45);
  z-index: 50;
  display: none;
  place-items: center;
  padding: 20px;
}
.modal.open { display: grid; }
.modal-card {
  max-width: 760px;
  width: 100%;
  background: white;
  border-radius: 14px;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
  position: relative;
}
.modal-card img { width: 100%; height: 100%; object-fit: cover; min-height: 380px; }
.modal-body { padding: 34px; display: flex; flex-direction: column; justify-content: center; }
.modal-body h3 { font-size: 28px; margin: 4px 0 10px; color: var(--blue-deep); }
.modal-price { font-size: 24px; font-weight: 700; margin: 16px 0; }
.modal-close {
  position: absolute; right: 14px; top: 10px;
  width: 38px; height: 38px; border-radius: 50%;
  border: none; background: white; font-size: 26px;
}

@media (max-width: 1100px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .catalogue-section { grid-template-columns: minmax(0,1fr) 300px; }
  .main-nav { gap: 24px; }
}
@media (max-width: 860px) {
  .site-header { height: auto; min-height: 74px; flex-wrap: wrap; padding-top: 12px; padding-bottom: 12px; }
  .menu-toggle { display: block; }
  .main-nav { display: none; width: 100%; flex-direction: column; gap: 0; padding-top: 12px; }
  .main-nav.open { display: flex; }
  .main-nav a { width: 100%; padding: 10px 0; }
  .main-nav a::after { display: none; }
  .hero { grid-template-columns: 1fr; }
  .hero-copy { order: 2; }
  .hero-image { min-height: 300px; }
  .catalogue-section { grid-template-columns: 1fr; }
  .request-card { position: static; }
  .section-heading-row { align-items: flex-start; flex-direction: column; }
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .benefits { grid-template-columns: repeat(2, 1fr); gap: 18px 0; }
  .benefits article:nth-child(2) { border-right: none; }
  .how-to { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .brand-name { font-size: 24px; }
  .hero-copy { padding-top: 36px; padding-bottom: 40px; }
  .hero-image { min-height: 240px; }
  .product-grid { grid-template-columns: 1fr; }
  .benefits { grid-template-columns: 1fr; }
  .benefits article { border-right: 0; border-bottom: 1px solid var(--line); padding: 14px 0; }
  .benefits article:last-child { border-bottom: 0; }
  .steps { grid-template-columns: 1fr; }
  footer { flex-direction: column; }
  .modal-card { grid-template-columns: 1fr; max-height: 90vh; overflow-y: auto; }
  .modal-card img { min-height: 230px; max-height: 300px; }
}

.social-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.social-links a {
    width: 42px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #2f659d;
    text-decoration: none;
    font-size: 24px;
    border-radius: 50%;
    transition: all 0.3s ease;
}

.social-links a:hover {
    color: #ffffff;
    background: #2f659d;
    transform: translateY(-2px);
}