* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Inter, "Segoe UI", Arial, sans-serif;
}

html {
  scroll-behavior: smooth;
}

body {
  background: #f5f1eb;
  color: #1f2933;
}

.nav {
  width: 100%;
  padding: 14px 6%;
  position: fixed;
  top: 0;
  z-index: 1000;
  background: rgba(245, 241, 235, 0.92);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(31, 53, 90, 0.12);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  cursor: pointer;
}

.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 13px;
  background: #1f355a;
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 900;
  letter-spacing: 1px;
}

.brand {
  font-size: 20px;
  font-weight: 850;
  color: #1f355a;
}

.nav-subtitle {
  font-size: 12px;
  color: #6b7280;
}

.nav-links {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.nav-links button {
  border: none;
  background: #1f355a;
  color: #fff;
  padding: 9px 15px;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 750;
  transition: 0.25s;
}

.nav-links button:hover {
  background: #2b4a78;
  transform: translateY(-2px);
}

.hero {
  min-height: 76vh;
  padding: 105px 6% 45px;
  display: grid;
  grid-template-columns: 1fr 0.95fr;
  gap: 38px;
  align-items: center;
  background:
    radial-gradient(circle at 85% 20%, rgba(31, 53, 90, 0.13), transparent 32%),
    linear-gradient(135deg, #f8f6f2, #eee5da);
}

.label {
  color: #1f355a;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 12px;
  font-weight: 850;
  margin-bottom: 12px;
}

.hero h1 {
  font-size: clamp(38px, 5vw, 68px);
  line-height: 0.98;
  letter-spacing: -2px;
  color: #1f2933;
  max-width: 780px;
  margin-bottom: 18px;
}

.hero-text {
  max-width: 600px;
  color: #4b5563;
  font-size: 17px;
  line-height: 1.7;
}

.hero-btn {
  margin-top: 26px;
  padding: 13px 24px;
  border: none;
  background: #1f355a;
  color: #fff;
  border-radius: 999px;
  font-weight: 800;
  cursor: pointer;
  transition: 0.25s;
}

.hero-btn:hover {
  background: #2b4a78;
  transform: translateY(-3px);
  box-shadow: 0 16px 36px rgba(31, 53, 90, 0.18);
}

.hero-visual {
  height: 405px;
  border-radius: 30px;
  background:
    linear-gradient(rgba(0,0,0,0.02), rgba(0,0,0,0.24)),
    url("images/queen-main.png");
  background-size: cover;
  background-position: center;
  position: relative;
  box-shadow: 0 24px 70px rgba(31, 53, 90, 0.16);
  overflow: hidden;
  animation: softFloat 5s ease-in-out infinite;
}

@keyframes softFloat {
  0%, 100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-8px);
  }
}

.hero-card {
  position: absolute;
  left: 22px;
  right: 22px;
  bottom: 22px;
  padding: 22px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(18px);
  border: 1px solid rgba(255,255,255,0.6);
}

.hero-card p {
  color: #64748b;
  margin-bottom: 6px;
}

.hero-card h3 {
  color: #1f355a;
  font-size: 25px;
  margin-bottom: 7px;
}

.hero-card span {
  color: #334155;
}

.trust-section {
  padding: 38px 6%;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  background: #fff;
}

.trust-card {
  padding: 24px;
  border-radius: 24px;
  background: #f8f6f2;
  border: 1px solid rgba(31, 53, 90, 0.08);
  transition: 0.25s;
}

.trust-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 18px 38px rgba(31, 53, 90, 0.1);
}

.trust-card h3 {
  color: #1f355a;
  margin-bottom: 8px;
}

.trust-card p {
  color: #5b6472;
  line-height: 1.55;
  font-size: 14px;
}

.discount-banner {
  margin: 34px 6%;
  padding: 28px;
  border-radius: 26px;
  background: #1f355a;
  color: #fff;
  text-align: center;
}

.discount-banner h2 {
  font-size: 30px;
  margin-bottom: 8px;
}

.discount-banner p {
  color: #edf3fa;
}

.products-section,
.catalog {
  padding: 50px 6%;
}

.section-head h2,
.panel-head h2 {
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1;
  letter-spacing: -1px;
  margin-bottom: 28px;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.category-card {
  height: 340px;
  border-radius: 28px;
  overflow: hidden;
  position: relative;
  cursor: pointer;
  box-shadow: 0 20px 55px rgba(31, 53, 90, 0.12);
  background: #fff;
}

.category-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: 0.35s;
}

.category-card:hover img {
  transform: scale(1.06);
}

.category-card div {
  position: absolute;
  inset: auto 0 0 0;
  padding: 24px;
  color: #fff;
  background: linear-gradient(transparent, rgba(0,0,0,0.74));
}

.category-card h3 {
  font-size: 30px;
  margin-bottom: 6px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-bottom: 35px;
}

.step {
  padding: 14px 10px;
  border-radius: 18px;
  border: 1px solid rgba(31, 53, 90, 0.12);
  background: #fff;
  color: #1f355a;
  cursor: pointer;
  font-weight: 750;
  transition: 0.25s;
}

.step:hover {
  background: #e8edf5;
  transform: translateY(-3px);
}

.step.active {
  background: #1f355a;
  color: white;
}

.panel {
  display: none;
  animation: fadeUp 0.42s ease forwards;
}

.panel.show {
  display: block;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(18px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.grid {
  display: grid;
  gap: 22px;
}

.grid.four {
  grid-template-columns: repeat(4, 1fr);
}

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

.grid.two {
  grid-template-columns: repeat(2, 1fr);
}

.choice-card {
  cursor: pointer;
  border-radius: 26px;
  overflow: hidden;
  background: #fff;
  border: 1px solid rgba(31, 53, 90, 0.1);
  box-shadow: 0 18px 44px rgba(31, 53, 90, 0.08);
  transition: 0.25s;
  position: relative;
}

.choice-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 24px 60px rgba(31, 53, 90, 0.15);
}

.choice-card.selected {
  border: 3px solid #1f355a;
}

.image-card {
  height: 315px;
}

.image-card img,
.thickness-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: 0.35s;
}

.choice-card:hover img {
  transform: scale(1.045);
}

.card-overlay {
  position: absolute;
  inset: 0;
  padding: 22px;
  background: linear-gradient(transparent 35%, rgba(0,0,0,0.72));
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.card-overlay p {
  margin-bottom: 7px;
  color: #e7edf5;
}

.card-overlay h3 {
  font-size: 26px;
  margin-bottom: 8px;
}

.card-overlay span,
.thickness-info span,
.option-card span {
  font-weight: 850;
  color: #e7edf5;
}

.thickness-card {
  min-height: 380px;
}

.thickness-card img {
  height: 235px;
}

.thickness-info {
  padding: 22px;
}

.thickness-info p {
  color: #64748b;
  margin-bottom: 6px;
}

.thickness-info h3,
.option-card h3 {
  color: #1f2933;
  font-size: 26px;
  margin-bottom: 8px;
}

.thickness-info strong {
  display: block;
  color: #1f355a;
  font-size: 30px;
  margin-bottom: 12px;
}

.thickness-info span,
.option-card span {
  color: #1f355a;
}

.option-card {
  padding: 30px;
  min-height: 185px;
}

.option-card.large {
  min-height: 210px;
}

.option-card p {
  color: #5b6472;
  line-height: 1.6;
  margin-bottom: 22px;
}

.back-btn {
  padding: 12px 20px;
  margin-bottom: 24px;
  border: none;
  border-radius: 999px;
  background: #1f355a;
  color: #fff;
  cursor: pointer;
  font-weight: 800;
  transition: 0.25s;
}

.back-btn:hover {
  background: #2b4a78;
  transform: translateY(-2px);
}

.final-card {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  overflow: hidden;
  border-radius: 30px;
  background: #fff;
  box-shadow: 0 24px 70px rgba(31, 53, 90, 0.14);
}

.final-image img {
  width: 100%;
  height: 100%;
  min-height: 450px;
  object-fit: cover;
}

.final-info {
  padding: 38px;
}

.final-info h2 {
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1;
  margin-bottom: 24px;
  color: #1f2933;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 15px 0;
  border-bottom: 1px solid rgba(31, 53, 90, 0.1);
}

.summary-row span {
  color: #64748b;
}

.summary-row strong {
  color: #1f2933;
  text-align: right;
}

.price-box {
  margin-top: 26px;
  padding: 24px;
  border-radius: 22px;
  background: #1f355a;
  color: #fff;
}

.price-box h3 {
  font-size: 44px;
  margin-top: 5px;
}

.discount-note {
  margin-top: 18px;
  padding: 16px;
  border-radius: 18px;
  background: #eef3f8;
  color: #1f355a;
  line-height: 1.5;
}

.note {
  margin-top: 18px;
  color: #64748b;
  line-height: 1.6;
}

footer {
  padding: 35px 6%;
  background: #1f355a;
  color: #fff;
}

footer h3 {
  margin-bottom: 8px;
}

footer p {
  color: #dbe4ef;
}

@media (max-width: 1050px) {
  .hero,
  .final-card {
    grid-template-columns: 1fr;
  }

  .trust-section,
  .grid.four,
  .grid.three,
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

@media (max-width: 680px) {
  .nav {
    align-items: flex-start;
    gap: 10px;
    flex-direction: column;
  }

  .nav-links button {
    padding: 8px 12px;
    font-size: 13px;
  }

  .hero {
    padding-top: 145px;
  }

  .hero-visual {
    height: 330px;
  }

  .trust-section,
  .grid.four,
  .grid.three,
  .grid.two,
  .category-grid,
  .steps {
    grid-template-columns: 1fr;
  }

  .image-card {
    height: 290px;
  }

  .final-info {
    padding: 26px;
  }
}