/* KartelOS — Streetwear Brand Operating System */
:root {
  --bg: #0A0A0A;
  --bg-alt: #111111;
  --fg: #F5F0E8;
  --fg-dim: #8A8478;
  --accent: #7B2D8E;
  --accent-bright: #A855F7;
  --gold: #FFD700;
  --rule: rgba(245, 240, 232, 0.08);
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'DM Sans', system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* NAV */
.nav {
  padding: 28px 48px;
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(12px);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1280px;
  margin: 0 auto;
}
.nav-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.6rem;
  letter-spacing: 0.12em;
  color: var(--fg);
}
.nav-tag {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--fg-dim);
}

/* HERO */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  border-bottom: 1px solid var(--rule);
}
.hero-inner {
  padding: 80px 48px 80px 64px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero-eyebrow {
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-bright);
  margin-bottom: 32px;
}
.hero-headline {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(4rem, 8vw, 7.5rem);
  line-height: 0.92;
  letter-spacing: 0.02em;
  margin-bottom: 40px;
  display: flex;
  flex-direction: column;
}
.hero-line { color: var(--fg); }
.hero-line-accent { color: var(--accent-bright); }
.hero-sub {
  font-size: 1.05rem;
  color: var(--fg-dim);
  max-width: 420px;
  line-height: 1.7;
}

.hero-visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;
  border-left: 1px solid var(--rule);
}
.hero-block {
  padding: 40px 32px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  position: relative;
  overflow: hidden;
}
.hero-block::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--block-color, var(--accent));
  opacity: 0.06;
}
.hero-block-1 { background: var(--bg-alt); --block-color: #A855F7; }
.hero-block-2 { background: #0F0F0F; --block-color: #FFD700; border-top: 1px solid var(--rule); }
.hero-block-3 { background: #0D0D0D; --block-color: #7B2D8E; border-left: 1px solid var(--rule); }
.block-label {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--fg-dim);
  margin-bottom: 10px;
}
.block-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.8rem;
  line-height: 1.1;
  letter-spacing: 0.04em;
}

/* MANIFESTO */
.manifesto {
  padding: 120px 64px;
  max-width: 1280px;
  margin: 0 auto;
  width: 100%;
}
.manifesto-inner {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 48px;
  align-items: start;
}
.manifesto-number {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 5rem;
  color: var(--accent);
  line-height: 1;
}
.manifesto-headline {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.2rem, 4vw, 3.8rem);
  line-height: 1.05;
  letter-spacing: 0.02em;
  margin-bottom: 28px;
  color: var(--fg);
}
.manifesto-body {
  color: var(--fg-dim);
  font-size: 1.05rem;
  line-height: 1.8;
  max-width: 560px;
}
.manifesto-rule {
  height: 1px;
  background: var(--rule);
  margin-top: 80px;
}

/* PRODUCTS */
.products {
  padding: 100px 64px;
  background: var(--bg-alt);
}
.products-header {
  max-width: 1280px;
  margin: 0 auto 64px;
}
.products-title {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(3rem, 5vw, 5rem);
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}
.products-sub {
  color: var(--fg-dim);
  font-size: 1rem;
}
.products-grid {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.product-card {
  background: var(--bg-alt);
  padding: 48px 36px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: background 0.3s ease;
}
.product-card:hover { background: #141414; }
.product-icon { color: var(--accent-bright); }
.product-name {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.5rem;
  letter-spacing: 0.06em;
}
.product-desc {
  color: var(--fg-dim);
  font-size: 0.9rem;
  line-height: 1.7;
  flex: 1;
}

/* CRAFT */
.craft {
  padding: 120px 64px;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.craft-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.craft-number {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 5rem;
  color: var(--accent);
  margin-bottom: 24px;
  line-height: 1;
}
.craft-headline {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.5rem, 4vw, 4rem);
  line-height: 1.05;
  letter-spacing: 0.02em;
  margin-bottom: 28px;
}
.craft-body {
  color: var(--fg-dim);
  font-size: 1rem;
  line-height: 1.8;
}
.craft-details {
  display: flex;
  flex-direction: column;
  gap: 40px;
}
.craft-stat {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--rule);
}
.craft-stat:last-child { border-bottom: none; }
.craft-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 3.5rem;
  letter-spacing: 0.04em;
  color: var(--fg);
}
.craft-label {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-dim);
}

/* CLOSER */
.closer {
  padding: 140px 64px;
  text-align: center;
  background: var(--accent);
}
.closer-inner {
  max-width: 800px;
  margin: 0 auto;
}
.closer-text {
  font-family: 'Bebas Neue', sans-serif;
  font-size: clamp(2.5rem, 5vw, 5rem);
  line-height: 1.1;
  letter-spacing: 0.02em;
  margin-bottom: 40px;
}
.closer-rule {
  width: 60px;
  height: 2px;
  background: rgba(255,255,255,0.3);
  margin: 0 auto 40px;
}
.closer-sub {
  font-size: 1.05rem;
  opacity: 0.8;
  line-height: 1.7;
}

/* FOOTER */
.footer {
  padding: 32px 64px;
  border-top: 1px solid var(--rule);
}
.footer-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.footer-logo {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 1.1rem;
  letter-spacing: 0.15em;
  color: var(--fg-dim);
}
.footer-copy {
  font-size: 0.8rem;
  color: var(--fg-dim);
}

/* RESPONSIVE */
@media (max-width: 1024px) {
  .hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-visual { border-left: none; border-top: 1px solid var(--rule); grid-template-columns: 1fr 1fr 1fr; }
  .hero-block-3 { display: none; }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .craft-inner { grid-template-columns: 1fr; }
  .manifesto-inner { grid-template-columns: 1fr; }
  .manifesto-number { display: none; }
}

@media (max-width: 768px) {
  .nav { padding: 20px 24px; }
  .hero-inner { padding: 60px 24px; }
  .hero-visual { grid-template-columns: 1fr 1fr; }
  .hero-block-2 { display: none; }
  .manifesto { padding: 80px 24px; }
  .products { padding: 80px 24px; }
  .products-grid { grid-template-columns: 1fr; }
  .craft { padding: 80px 24px; }
  .closer { padding: 80px 24px; }
  .footer { padding: 24px; }
  .footer-inner { flex-direction: column; gap: 12px; }
}