/* ============================================================
   ZENTRIX — GHK-Cu
   style.css
   ============================================================ */

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

:root {
  --gold:       #C8A951;
  --gold-light: #E2CC85;
  --gold-muted: rgba(200, 169, 81, 0.12);
  --white:      #FAFAF7;
  --dark:       #0C0C0A;
  --dark-mid:   #141412;
  --muted:      #5A5A54;
  --red:        #C8001E;
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body:    'Jost', system-ui, sans-serif;
}

html,
body {
  height: 100%;
}

body {
  background: var(--dark);
  color: var(--white);
  font-family: var(--font-body);
  font-weight: 300;
  overflow-x: hidden;
  cursor: default;
}

a {
  cursor: pointer;
  text-decoration: none;
}

/* ============================================================
   NAV
   ============================================================ */

nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 2.5rem 4rem;
}

.nav-logo {
  font-family: var(--font-body);
  font-weight: 200;
  font-size: 1rem;
  letter-spacing: 0.5em;
  color: var(--white);
  text-transform: uppercase;
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.6rem;
  font-weight: 300;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
}

.nav-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gold);
  flex-shrink: 0;
  animation: pulse 2s ease infinite;
}

/* ============================================================
   HERO
   ============================================================ */

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 6rem 2rem;
  position: relative;
  overflow: hidden;
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right,  rgba(200, 169, 81, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(200, 169, 81, 0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
}

.bg-glow {
  position: absolute;
  width: 700px;
  height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200, 169, 81, 0.07) 0%, transparent 65%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  animation: fadeUp 1.2s ease forwards;
  opacity: 0;
}

/* Swiss cross icon */
.swiss-cross {
  width: 36px;
  height: 36px;
  background: var(--red);
  position: relative;
  margin-bottom: 3rem;
  flex-shrink: 0;
}

.swiss-cross::before,
.swiss-cross::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: white;
}

.swiss-cross::before {
  width: 8px;
  height: 24px;
}

.swiss-cross::after {
  width: 24px;
  height: 8px;
}

h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 14vw, 13rem);
  font-weight: 300;
  letter-spacing: 0.18em;
  line-height: 0.9;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 1.8rem;
}

.gold-line {
  width: 100%;
  max-width: 600px;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--gold), transparent);
  margin-bottom: 1.8rem;
}

.product-label {
  font-size: 0.72rem;
  font-weight: 300;
  letter-spacing: 0.7em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 4rem;
}

/* Status badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  border: 1px solid rgba(200, 169, 81, 0.25);
  padding: 0.9rem 2.2rem;
  margin-bottom: 3rem;
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold);
  flex-shrink: 0;
  animation: pulse 2s ease infinite;
}

.badge-text {
  font-size: 0.62rem;
  font-weight: 300;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--gold);
}

/* Product specs row */
.specs {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.spec {
  text-align: center;
}

.spec-val {
  display: block;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--white);
  margin-bottom: 0.3rem;
}

.spec-label {
  font-size: 0.55rem;
  font-weight: 300;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
}

.spec-div {
  width: 1px;
  height: 36px;
  background: rgba(200, 169, 81, 0.2);
}

/* Scroll indicator */
.scroll-hint {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  z-index: 1;
  animation: fadeUp 1.2s 0.6s ease forwards;
  opacity: 0;
}

.scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--gold), transparent);
  animation: scrollBlink 2.2s ease infinite;
}

.scroll-text {
  font-size: 0.5rem;
  font-weight: 300;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ============================================================
   DIVIDER
   ============================================================ */

.divider {
  height: 1px;
  background: linear-gradient(to right, transparent, rgba(200, 169, 81, 0.3), transparent);
  margin: 0 4rem;
}

/* ============================================================
   CONTENT SECTIONS (2-column)
   ============================================================ */

.content-section {
  padding: 7rem 4rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.content-section.alt {
  background: var(--dark-mid);
}

.content-section.reverse {
  direction: rtl;
}

.content-section.reverse > * {
  direction: ltr;
}

.section-label {
  font-size: 0.58rem;
  font-weight: 300;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.2rem;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  font-weight: 300;
  color: var(--white);
  margin-bottom: 2rem;
  line-height: 1.15;
}

.section-block {
  border: 1px solid rgba(200, 169, 81, 0.12);
  background: var(--gold-muted);
  padding: 1.8rem 2rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.section-block span {
  font-size: 0.62rem;
  font-weight: 300;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: var(--gold);
}

.visual-placeholder {
  aspect-ratio: 4 / 3;
  border: 1px solid rgba(200, 169, 81, 0.12);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  background: var(--gold-muted);
}

.visual-placeholder span {
  font-size: 0.58rem;
  font-weight: 300;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  color: rgba(200, 169, 81, 0.4);
}

.icon-placeholder {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 300;
  color: rgba(200, 169, 81, 0.18);
}

/* ============================================================
   GRID SECTION (3-column cards)
   ============================================================ */

.grid-section {
  padding: 7rem 4rem;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  margin-top: 3rem;
}

.card-item {
  background: var(--dark-mid);
  border: 1px solid rgba(200, 169, 81, 0.08);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.card-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  font-weight: 300;
  color: rgba(200, 169, 81, 0.15);
  line-height: 1;
}

.card-inner {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  border: 1px solid rgba(200, 169, 81, 0.12);
  background: var(--gold-muted);
  padding: 1rem 1.2rem;
}

.card-inner span {
  font-size: 0.58rem;
  font-weight: 300;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--gold);
}

/* ============================================================
   FOOTER
   ============================================================ */

footer {
  background: #080806;
  border-top: 1px solid rgba(200, 169, 81, 0.1);
  padding: 3rem 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-logo {
  font-family: var(--font-body);
  font-weight: 200;
  font-size: 0.9rem;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: rgba(250, 250, 247, 0.3);
}

.footer-note {
  font-size: 0.58rem;
  font-weight: 300;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(122, 122, 114, 0.35);
}

/* ============================================================
   ANIMATIONS
   ============================================================ */

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(40px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1;   transform: scale(1);   }
  50%       { opacity: 0.4; transform: scale(0.7); }
}

@keyframes scrollBlink {
  0%, 100% { opacity: 0.3; }
  50%       { opacity: 1; }
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1024px) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  nav {
    padding: 1.5rem 2rem;
  }

  h1 {
    letter-spacing: 0.08em;
  }

  .hero {
    padding: 5rem 1.5rem;
  }

  .product-label {
    letter-spacing: 0.4em;
  }

  .specs {
    gap: 1.2rem;
  }

  .spec-val {
    font-size: 1.2rem;
  }

  .content-section {
    grid-template-columns: 1fr;
    padding: 5rem 2rem;
  }

  .content-section.reverse {
    direction: ltr;
  }

  .grid-section {
    padding: 5rem 2rem;
  }

  .cards-grid {
    grid-template-columns: 1fr;
  }

  footer {
    flex-direction: column;
    gap: 1rem;
    padding: 2rem;
    text-align: center;
  }

  .divider {
    margin: 0 2rem;
  }
}

@media (max-width: 480px) {
  nav {
    padding: 1rem 1.2rem;
  }

  .nav-logo {
    letter-spacing: 0.25em;
  }

  h1 {
    letter-spacing: 0.04em;
  }

  .hero {
    padding: 4.5rem 1rem;
  }

  .product-label {
    letter-spacing: 0.25em;
    font-size: 0.65rem;
  }

  .badge {
    padding: 0.75rem 1.4rem;
  }

  .badge-text {
    letter-spacing: 0.25em;
    font-size: 0.58rem;
  }

  .specs {
    gap: 0.8rem;
  }

  .spec-val {
    font-size: 1rem;
  }

  .spec-label {
    font-size: 0.5rem;
    letter-spacing: 0.2em;
  }

  .spec-div {
    height: 28px;
  }

  .divider {
    margin: 0 1rem;
  }

  .content-section {
    padding: 4rem 1.2rem;
  }

  .grid-section {
    padding: 4rem 1.2rem;
  }

  .card-item {
    padding: 1.8rem;
  }

  footer {
    padding: 1.5rem 1.2rem;
  }
}