body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #eef2f6;
  color: #1f2937;
}

* {
  box-sizing: border-box;
}

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

a {
  text-decoration: none;
}

.container {
  width: 92%;
  max-width: 1240px;
  margin: 0 auto;
}

/* Top bar */
.topbar {
  background: #d71920;
  color: white;
  padding: 10px 0;
  font-weight: bold;
}

/* Header */
header {
  background: white;
  border-bottom: 1px solid #ddd;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 78px;
  gap: 20px;
}

.logo {
  font-size: 2rem;
  font-weight: bold;
  color: #d71920;
}

.logo span {
  color: #1d2a44;
}

.nav-links {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.nav-links a {
  font-weight: bold;
  color: #333;
}

.nav-links a:hover,
.nav-links a.active {
  color: #d71920;
}

/* Hero */
.hero {
  background: linear-gradient(135deg, #ffffff, #dfe8f3);
  padding: 40px 0;
}

.hero-wrap {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 24px;
  align-items: center;
}

.hero-copy h1 {
  font-size: 3rem;
  margin-bottom: 12px;
}

.hero-copy p {
  font-size: 1.1rem;
  color: #4b5563;
  margin-bottom: 20px;
}

.hero-badges {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin: 18px 0 22px;
}

.badge {
  background: white;
  border: 1px solid #d1d5db;
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 0.95rem;
  font-weight: bold;
}

.hero-card {
  background: white;
  border: 1px solid #d1d5db;
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.08);
}

.hero-card img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}

.button-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 800;
}

.btn-primary {
  background: #d71920;
  color: white;
}

.btn-secondary {
  background: white;
  color: #111827;
  border: 1px solid #cbd5e1;
}

/* Sections */
.section {
  padding: 36px 0;
}

.section-header {
  margin-bottom: 18px;
}

.section-header h2,
.page-header h1,
.panel-title {
  color: #111827;
}

.section-header p,
.page-header p,
.card p,
.info-card p,
.feature-list li {
  color: #6b7280;
}

.grid {
  display: grid;
  gap: 18px;
}

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

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

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

.category-card,
.card,
.info-card {
  background: white;
  border: 1px solid #d1d5db;
  border-radius: 14px;
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.06);
}

.category-card,
.info-card {
  padding: 22px;
}

.card {
  overflow: hidden;
}

.card-body {
  padding: 18px;
}

.category-card h3,
.card h3 {
  margin-top: 0;
  margin-bottom: 10px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  background: #e8f0ff;
  color: #1d4ed8;
  font-size: 0.82rem;
  font-weight: 800;
}

.build-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  background: #dfe5ec;
  border-radius: 8px;
}

.feature-list {
  list-style: none;
  padding-left: 0;
}

.feature-list li {
  margin-bottom: 8px;
}

.price-tag {
  display: inline-block;
  margin-top: 14px;
  background: #fff1f2;
  color: #d71920;
  border: 1px solid #fecdd3;
  border-radius: 999px;
  padding: 8px 12px;
  font-weight: 800;
}

.contact-build-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.notice {
  margin-top: 16px;
  background: #fff7ed;
  border: 1px solid #fed7aa;
  color: #9a3412;
  border-radius: 12px;
  padding: 14px 16px;
  font-weight: 700;
}

.form-grid {
  display: grid;
  gap: 14px;
}

label {
  display: block;
  margin-bottom: 7px;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  background: white;
  color: #111827;
  font: inherit;
}

textarea {
  min-height: 140px;
}

.page-header {
  padding: 28px 0 6px;
}

/* Build filters */
.filter-panel {
  background: white;
  border: 1px solid #d1d5db;
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 24px;
  box-shadow: 0 10px 22px rgba(0, 0, 0, 0.06);
  display: grid;
  grid-template-columns: repeat(5, minmax(160px, 1fr));
  gap: 14px;
  align-items: end;
}

.filter-group label {
  display: block;
  font-weight: 800;
  margin-bottom: 6px;
  color: #111827;
}

.filter-group select {
  width: 100%;
}

footer {
  background: white;
  border-top: 1px solid #d1d5db;
  margin-top: 36px;
}

footer .container {
  padding: 24px 0 34px;
  color: #6b7280;
}

@media (max-width: 1000px) {
  .filter-panel {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .hero-wrap,
  .grid-4,
  .grid-3,
  .grid-2 {
    grid-template-columns: 1fr;
  }

  .hero-card img {
    height: 260px;
  }
}

@media (max-width: 640px) {
  .filter-panel {
    grid-template-columns: 1fr;
  }
}