:root {
  --black: #111111;
  --yellow: #FFC90E;
  --yellow-dark: #E6A800;
  --white: #FFFFFF;
  --gray-light: #F5F5F5;
  --gray-mid: #6B6B6B;
  --gray-border: #E2E2E2;
  --radius: 8px;
  --max-width: 1140px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", Arial, Helvetica, sans-serif;
  color: var(--black);
  background: var(--white);
  line-height: 1.6;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

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

h1, h2, h3 { line-height: 1.2; margin: 0 0 16px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  background: var(--white);
  border-bottom: 1px solid var(--gray-border);
  z-index: 100;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 12px;
  padding-bottom: 12px;
}

.brand-logo { height: 44px; width: auto; }

.site-nav {
  display: flex;
  gap: 28px;
}

.site-nav a {
  font-weight: 600;
  font-size: 0.95rem;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s;
}

.site-nav a:hover { border-color: var(--yellow); }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  height: 3px;
  background: var(--black);
  border-radius: 2px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 13px 28px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.15s, background 0.2s;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--yellow);
  color: var(--black);
}

.btn-primary:hover { background: var(--yellow-dark); }

.btn-outline {
  background: transparent;
  border-color: var(--black);
  color: var(--black);
}

.btn-outline:hover { background: var(--black); color: var(--white); }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--black) 0%, #262626 100%);
  color: var(--white);
  padding: 100px 0;
}

.hero-inner { max-width: 700px; }

.hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--white);
}

.hero-sub {
  font-size: 1.15rem;
  color: #D8D8D8;
  margin-bottom: 32px;
}

.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; }

.hero .btn-outline { border-color: var(--white); color: var(--white); }
.hero .btn-outline:hover { background: var(--white); color: var(--black); }

/* Sections */
.section { padding: 80px 0; }
.section-alt { background: var(--gray-light); }

.section-title {
  font-size: 2rem;
  position: relative;
  padding-bottom: 14px;
}

.section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 60px;
  height: 4px;
  background: var(--yellow);
  border-radius: 2px;
}

.section-sub {
  color: var(--gray-mid);
  max-width: 640px;
  margin-top: 0;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: start;
  margin-top: 32px;
}

.about-text p { font-size: 1.05rem; }

.mv-cards {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.mission-card {
  background: var(--black);
  color: var(--white);
  padding: 32px;
  border-radius: var(--radius);
  border-top: 4px solid var(--yellow);
}

.mission-card h3 { color: var(--yellow); }
.mission-card p { margin-bottom: 0; }

.mission-note {
  font-size: 0.8rem;
  color: var(--gray-mid);
  font-style: italic;
  margin: 0;
}

/* Products */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.product-card {
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius);
  padding: 24px;
  border-top: 4px solid var(--yellow);
}

.product-card h3 { font-size: 1.15rem; margin-bottom: 10px; }
.product-card p { margin: 0; color: var(--gray-mid); }

.product-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--gray-mid);
}

.product-card li { margin-bottom: 4px; }

.products-note {
  margin-top: 28px;
  font-size: 0.85rem;
  color: var(--gray-mid);
  font-style: italic;
}

/* Brands */
.brands-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 32px;
}

.brand-badge {
  background: var(--gray-light);
  border: 1px solid var(--gray-border);
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
}

.contact-list {
  list-style: none;
  padding: 0;
  margin-top: 28px;
}

.contact-list li {
  margin-bottom: 22px;
  padding-left: 16px;
  border-left: 3px solid var(--yellow);
}

.contact-form {
  background: var(--white);
  padding: 32px;
  border-radius: var(--radius);
  border: 1px solid var(--gray-border);
}

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

.form-row label {
  display: block;
  font-weight: 600;
  margin-bottom: 6px;
  font-size: 0.9rem;
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--gray-border);
  border-radius: 6px;
  font-family: inherit;
  font-size: 1rem;
}

.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--yellow-dark);
}

.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.form-status {
  margin: 14px 0 0;
  font-weight: 600;
  font-size: 0.9rem;
}

.form-status.success { color: #1a7d3a; }
.form-status.error { color: #c0392b; }

/* Footer */
.site-footer {
  background: var(--black);
  color: #B8B8B8;
  padding: 36px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}

.footer-logo {
  height: 40px;
  background: var(--white);
  padding: 6px 10px;
  border-radius: 6px;
}

.footer-inner p { margin: 0; font-size: 0.85rem; }

/* Responsive */
@media (max-width: 860px) {
  .about-grid, .contact-grid { grid-template-columns: 1fr; }

  .nav-toggle { display: flex; }

  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    gap: 0;
    border-bottom: 1px solid var(--gray-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  .site-nav.open { max-height: 320px; }

  .site-nav a {
    padding: 16px 24px;
    border-bottom: 1px solid var(--gray-border);
  }

  .hero { padding: 64px 0; }
  .section { padding: 56px 0; }
}