* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --orange: #f07c00;
  --orange-dark: #c96600;
  --dark: #1a1a1a;
  --dark2: #2c2c2c;
  --gray: #555;
  --light-gray: #f4f4f4;
  --border: #ddd;
  --white: #fff;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--dark);
  line-height: 1.6;
}

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

/* ── HEADER ── */
header {
  background: var(--dark);
  color: var(--white);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.4);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: var(--orange);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

nav {
  display: flex;
  gap: 32px;
  align-items: center;
}

nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: #ccc;
  transition: color 0.2s;
}

nav a:hover { color: var(--white); }

.nav-cta {
  background: var(--orange);
  color: var(--white) !important;
  padding: 8px 18px;
  border-radius: 6px;
  font-weight: 600 !important;
  transition: background 0.2s !important;
}

.nav-cta:hover { background: var(--orange-dark) !important; }

/* ── HERO ── */
.hero {
  background: linear-gradient(135deg, #1a1a1a 0%, #2c2c2c 50%, #3a2a00 100%);
  color: var(--white);
  padding: 80px 24px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 40px,
    rgba(240,124,0,0.03) 40px,
    rgba(240,124,0,0.03) 80px
  );
}

.hero-inner {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero h1 span { color: var(--orange); }

.hero p {
  font-size: 1.1rem;
  color: #ccc;
  margin-bottom: 36px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: 7px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--orange);
  color: var(--white);
}

.btn-primary:hover { background: var(--orange-dark); transform: translateY(-1px); }

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,0.3);
}

.btn-outline:hover { border-color: var(--white); transform: translateY(-1px); }

/* ── STATS BAR ── */
.stats-bar {
  background: var(--orange);
  color: var(--white);
  padding: 20px 24px;
}

.stats-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-around;
  flex-wrap: wrap;
  gap: 16px;
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 1.6rem;
  font-weight: 800;
  display: block;
}

.stat-label {
  font-size: 0.8rem;
  opacity: 0.85;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ── SECTION SHARED ── */
section {
  padding: 64px 24px;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-label {
  display: inline-block;
  background: rgba(240,124,0,0.1);
  color: var(--orange);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
}

.section-header h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
}

.section-header p {
  color: var(--gray);
  margin-top: 10px;
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
}

/* ── CATALOG ── */
#catalog {
  background: var(--light-gray);
}

.catalog-inner {
  max-width: 1200px;
  margin: 0 auto;
}

/* Filter bar */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 36px;
}

.filter-btn {
  background: var(--white);
  border: 2px solid var(--border);
  padding: 8px 20px;
  border-radius: 25px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  color: var(--dark);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--white);
}

/* Product grid */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  transition: transform 0.2s, box-shadow 0.2s;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.12);
}

.product-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  background: #e8e8e8;
  position: relative;
  overflow: hidden;
}

.product-img-placeholder {
  width: 100%;
  height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  background: linear-gradient(135deg, #2c2c2c, #444);
}

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--orange);
  color: var(--white);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.5px;
}

.product-badge.used { background: #555; }
.product-badge.new { background: #1a8a1a; }

.product-body {
  padding: 20px;
}

.product-category {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--orange);
  margin-bottom: 6px;
}

.product-name {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.3;
}

.product-desc {
  font-size: 0.85rem;
  color: var(--gray);
  margin-bottom: 16px;
  line-height: 1.5;
}

.product-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
}

.spec-tag {
  background: var(--light-gray);
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--gray);
  padding: 3px 8px;
  border-radius: 4px;
}

.product-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}

.product-price {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--dark);
}

.product-price small {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--gray);
  display: block;
  margin-top: -2px;
}

.btn-inquire {
  background: var(--orange);
  color: var(--white);
  border: none;
  padding: 9px 18px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-inquire:hover { background: var(--orange-dark); }

.product-card.hidden { display: none; }

/* ── WHY US ── */
#why-us {
  background: var(--white);
}

.why-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 28px;
}

.feature-card {
  text-align: center;
  padding: 32px 20px;
  border-radius: 12px;
  border: 2px solid var(--border);
  transition: border-color 0.2s, transform 0.2s;
}

.feature-card:hover {
  border-color: var(--orange);
  transform: translateY(-3px);
}

.feature-icon {
  font-size: 2.4rem;
  margin-bottom: 16px;
  display: block;
}

.feature-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.85rem;
  color: var(--gray);
  line-height: 1.6;
}

/* ── CONTACT ── */
#contact {
  background: var(--light-gray);
}

.contact-inner {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 48px;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.contact-info p {
  color: var(--gray);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 28px;
}

.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.contact-detail-icon {
  width: 36px;
  height: 36px;
  background: var(--orange);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  flex-shrink: 0;
  font-size: 0.9rem;
}

.contact-detail strong {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #888;
  margin-bottom: 2px;
}

/* Form */
.contact-form {
  background: var(--white);
  padding: 36px;
  border-radius: 14px;
  box-shadow: 0 4px 20px rgba(0,0,0,0.07);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--dark);
}

.form-group label span { color: var(--orange); }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 2px solid var(--border);
  border-radius: 7px;
  font-size: 0.9rem;
  font-family: inherit;
  transition: border-color 0.2s;
  background: var(--white);
  color: var(--dark);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--orange);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.btn-submit {
  width: 100%;
  background: var(--orange);
  color: var(--white);
  border: none;
  padding: 14px;
  border-radius: 7px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background 0.2s;
  letter-spacing: 0.3px;
}

.btn-submit:hover { background: var(--orange-dark); }

.form-success {
  display: none;
  text-align: center;
  padding: 24px;
}

.form-success .success-icon {
  font-size: 3rem;
  margin-bottom: 12px;
}

.form-success h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.form-success p { color: var(--gray); font-size: 0.9rem; }

/* ── MODAL ── */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.open { display: flex; }

.modal {
  background: var(--white);
  border-radius: 14px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  animation: slideUp 0.25s ease;
}

@keyframes slideUp {
  from { transform: translateY(30px); opacity: 0; }
  to   { transform: translateY(0);    opacity: 1; }
}

.modal-header {
  padding: 24px 28px 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.modal-header h3 {
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.3;
}

.modal-header p {
  font-size: 0.82rem;
  color: var(--orange);
  font-weight: 600;
  margin-top: 2px;
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--gray);
  padding: 0;
  flex-shrink: 0;
  line-height: 1;
}

.modal-body { padding: 20px 28px 28px; }

/* ── FOOTER ── */
footer {
  background: var(--dark);
  color: #aaa;
  padding: 48px 24px 24px;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo {
  margin-bottom: 14px;
  color: var(--white);
}

.footer-brand p {
  font-size: 0.85rem;
  line-height: 1.7;
  color: #888;
}

.footer-col h4 {
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul li a {
  font-size: 0.85rem;
  color: #888;
  transition: color 0.2s;
}

.footer-col ul li a:hover { color: var(--white); }

.footer-bottom {
  border-top: 1px solid #333;
  padding-top: 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.8rem;
  flex-wrap: wrap;
  gap: 8px;
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  nav { display: none; }

  .contact-inner {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-bottom {
    justify-content: center;
    text-align: center;
  }

  .hero { padding: 60px 20px; }
}

@media (max-width: 500px) {
  .stats-inner { gap: 24px; }
  .hero-buttons { flex-direction: column; align-items: center; }
  .contact-form { padding: 24px 20px; }
  .modal-header, .modal-body { padding-left: 20px; padding-right: 20px; }
}