/* ============================================================
   RETRO REVIVE — "Kinetic Archive" Design System
   Industrial Brutalism / Editorial Precision
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600;700&display=swap');

/* ---------- DESIGN TOKENS ---------- */
:root {
  --surface-lowest: #0a0a0a;
  --surface: #131313;
  --surface-low: #1b1b1b;
  --surface-container: #1f1f1f;
  --surface-high: #2a2a2a;
  --surface-highest: #353535;

  --red: #E30613;
  --red-dim: #c0000c;
  --red-glow: rgba(227, 6, 19, 0.4);
  --red-tint: rgba(227, 6, 19, 0.08);

  --text: #e2e2e2;
  --text-dim: rgba(255, 255, 255, 0.6);
  --text-muted: rgba(255, 255, 255, 0.4);
  --text-faint: rgba(255, 255, 255, 0.2);

  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition: 0.3s var(--ease);

  --max-width: 1400px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--surface);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea, select { font: inherit; }

::selection { background: var(--red); color: #fff; }

::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--surface-lowest); }
::-webkit-scrollbar-thumb { background: var(--surface-highest); }
::-webkit-scrollbar-thumb:hover { background: var(--red); }

/* ---------- TYPOGRAPHY ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: #fff;
  line-height: 0.95;
}

h1 { font-size: clamp(3rem, 8vw, 6rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(2rem, 5vw, 3.5rem); }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.6rem); }

p { color: var(--text-dim); }

.eyebrow {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 16px;
}

.mono {
  font-family: 'Space Grotesk', 'SF Mono', monospace;
  letter-spacing: 0.02em;
}

/* ---------- HEADER ---------- */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-height);
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.04);
  z-index: 100;
  display: flex;
  align-items: center;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  text-decoration: none;
}

.logo-img {
  height: 42px;
  width: auto;
  display: block;
}

.footer .logo-img {
  height: 48px;
}

.nav {
  display: flex;
  gap: 32px;
  flex: 1;
  justify-content: center;
}

.nav a {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
  padding: 4px 0;
}

.nav a:hover { color: #fff; }

.nav a.active {
  color: var(--red);
}
.nav a.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--red);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-shrink: 0;
}

.icon-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: color var(--transition), transform var(--transition);
  position: relative;
}

.icon-btn:hover {
  color: var(--red);
  transform: translateY(-1px);
}

.cart-badge {
  position: absolute;
  top: 2px;
  right: 2px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  background: var(--red);
  color: #fff;
  border-radius: 2px;
  font-family: 'Space Grotesk', monospace;
  font-size: 0.6rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.menu-toggle {
  display: none;
  width: 36px;
  height: 36px;
  color: #fff;
}

/* ---------- BUTTONS ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  padding: 18px 36px;
  border-radius: 2px;
  transition: all var(--transition);
  cursor: pointer;
  white-space: nowrap;
  position: relative;
}

.btn-primary {
  background: var(--red);
  color: #fff;
}
.btn-primary:hover {
  background: var(--red-dim);
  box-shadow: 0 20px 50px rgba(0,0,0,0.5), 0 0 24px var(--red-glow);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.15);
}
.btn-ghost:hover {
  border-color: var(--red);
  color: var(--red);
}

.btn-sm {
  padding: 12px 20px;
  font-size: 0.65rem;
}

.btn-lg {
  padding: 22px 48px;
  font-size: 0.8rem;
}

.btn-full { width: 100%; }

/* ---------- MAIN / SECTIONS ---------- */
main { padding-top: var(--header-height); }

.section {
  padding: 100px 32px;
  position: relative;
  overflow: hidden;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
}

.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(227, 6, 19, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(227, 6, 19, 0.05) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, rgba(0,0,0,1) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.section > .container { position: relative; z-index: 1; }

/* Section header pattern */
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 40px;
  padding-bottom: 40px;
  margin-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.section-stats {
  display: flex;
  gap: 40px;
}

.stat-item { text-align: right; }

.stat-value {
  font-family: 'Space Grotesk', monospace;
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
  line-height: 1;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}

.stat-value.red { color: var(--red); }

.stat-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
}

/* ---------- HERO ---------- */
.hero {
  min-height: 100vh;
  padding: 140px 32px 80px;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: var(--surface);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(227, 6, 19, 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(227, 6, 19, 0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 30% 50%, rgba(0,0,0,1) 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 30% 50%, rgba(0,0,0,1) 0%, transparent 70%);
  z-index: 0;
}

.hero-scan {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: var(--red);
  opacity: 0.5;
  box-shadow: 0 0 12px var(--red);
  animation: scan 7s linear infinite;
  z-index: 1;
}

@keyframes scan {
  0% { transform: translateY(0); opacity: 0; }
  5% { opacity: 0.6; }
  95% { opacity: 0.6; }
  100% { transform: translateY(100vh); opacity: 0; }
}

.hero-content {
  max-width: var(--max-width);
  margin: 0 auto;
  width: 100%;
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 80px;
  align-items: center;
}

.hero-main {
  max-width: 720px;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 28px;
  animation: fadeUp 0.8s var(--ease) 0.1s both;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background: var(--red);
  animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.3; transform: scale(0.9); }
}

.hero-title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: clamp(3rem, 9vw, 6.5rem);
  line-height: 0.9;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 28px;
  animation: fadeUp 0.9s var(--ease) 0.25s both;
}

.hero-title .red { color: var(--red); }

.hero-sub {
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  font-size: 1.1rem;
  color: var(--text-dim);
  max-width: 520px;
  line-height: 1.65;
  margin-bottom: 44px;
  animation: fadeUp 0.9s var(--ease) 0.4s both;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  animation: fadeUp 0.9s var(--ease) 0.55s both;
}

/* Hero spec panel */
.hero-specs {
  display: flex;
  flex-direction: column;
  gap: 2px;
  animation: fadeUp 1s var(--ease) 0.7s both;
}

.spec-bar {
  background: rgba(42, 42, 42, 0.5);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-left: 2px solid var(--red);
  padding: 14px 20px;
}

.spec-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.spec-value {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.03em;
}

.spec-value .unit {
  font-size: 0.65rem;
  font-weight: 300;
  color: var(--text-muted);
  margin-left: 4px;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- PRODUCT ARCHIVE GRID ---------- */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2px;
}

.product-card {
  background: var(--surface-low);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: background 0.35s var(--ease), transform 0.35s var(--ease);
  color: inherit;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 0;
  height: 2px;
  background: var(--red);
  transition: width 0.5s var(--ease);
  z-index: 3;
}

.product-card:hover {
  background: var(--surface-container);
  transform: translateY(-4px);
}

.product-card.available:hover::before { width: 100%; }

.product-image {
  aspect-ratio: 1/1;
  background: var(--surface-lowest);
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s var(--ease);
}

.product-card:hover .product-image img { transform: scale(1.05); }

.product-grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(227, 6, 19, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(227, 6, 19, 0.04) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
  z-index: 1;
}

.product-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  background: var(--red);
  color: #fff;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  padding: 5px 10px;
  border-radius: 2px;
  z-index: 2;
}

.product-tag.pending {
  background: rgba(255,255,255,0.08);
  color: var(--text-muted);
}

.product-tag.new {
  background: #fff;
  color: var(--surface);
}

.product-placeholder-icon {
  color: rgba(255,255,255,0.08);
}

.product-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-id {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--red);
  margin-bottom: 12px;
}

.product-name {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.01em;
  line-height: 1.1;
  text-transform: uppercase;
  color: #fff;
  margin: 0 0 24px;
}

.product-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.06);
  margin-top: auto;
}

.product-price {
  font-family: 'Space Grotesk', monospace;
  font-size: 1.05rem;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.03em;
}

.product-price .unit {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-left: 4px;
}

.product-arrow {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.3rem;
  color: var(--red);
  transition: transform 0.3s;
}

.product-card:hover .product-arrow { transform: translateX(6px); }

/* ---------- PROTOCOL / PROCESS ---------- */
.protocol-stack {
  display: flex;
  flex-direction: column;
  gap: 2px;
  max-width: 1100px;
  margin: 0 auto;
}

.protocol {
  background: var(--surface);
  display: grid;
  grid-template-columns: 100px 1fr 240px;
  gap: 32px;
  padding: 40px;
  align-items: center;
  transition: background var(--transition);
  position: relative;
}

.protocol::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 2px;
  height: 100%;
  background: var(--red);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform 0.4s var(--ease);
}

.protocol:hover { background: var(--surface-low); }
.protocol:hover::before { transform: scaleY(1); }

.protocol-index {
  font-family: 'Space Grotesk', monospace;
  font-size: 3rem;
  font-weight: 700;
  color: var(--red);
  line-height: 1;
  letter-spacing: -0.04em;
}

.protocol-meta {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.protocol-title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  letter-spacing: -0.01em;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 10px;
}

.protocol-desc {
  font-size: 0.9rem;
  color: var(--text-dim);
  max-width: 520px;
  margin: 0;
}

.protocol-spec {
  background: var(--surface-lowest);
  padding: 16px 20px;
  border-left: 2px solid var(--red);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.spec-pair {
  display: flex;
  justify-content: space-between;
  font-family: 'Space Grotesk', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
}
.spec-pair span:first-child { color: var(--text-muted); }
.spec-pair span:last-child { color: #fff; font-weight: 600; }

/* ---------- MANIFESTO ---------- */
.manifesto {
  background: var(--surface);
  padding: 140px 32px;
  position: relative;
  overflow: hidden;
}

.manifesto::before {
  content: '';
  position: absolute;
  top: 50%;
  left: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(227, 6, 19, 0.08) 0%, transparent 70%);
  transform: translateY(-50%);
  pointer-events: none;
}

.manifesto-inner {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.manifesto-quote {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 500;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #fff;
  text-transform: none;
  margin: 24px 0 60px;
}

.manifesto-quote .red { color: var(--red); }

.manifesto-foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 24px;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.signature-label {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  color: var(--red);
}

.signature-sub {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ---------- INITIATE / CONTACT CTA ---------- */
.initiate {
  background: var(--surface-lowest);
  padding: 140px 32px;
  position: relative;
  overflow: hidden;
}

.initiate-inner {
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 1;
}

.initiate-status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--red);
  margin-bottom: 32px;
}

.initiate-title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: clamp(2.5rem, 7vw, 5rem);
  letter-spacing: -0.03em;
  line-height: 0.9;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 32px;
}

.initiate-sub {
  font-size: 1.05rem;
  color: var(--text-dim);
  max-width: 600px;
  margin: 0 auto 44px;
}

.initiate-ctas {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 80px;
}

.meta-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
  max-width: 720px;
  margin: 0 auto;
}

.meta-item {
  background: var(--surface);
  padding: 24px 20px;
  text-align: left;
  border-left: 2px solid var(--red);
}

.meta-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  color: var(--text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
}

.meta-value {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.03em;
}

/* ---------- FOOTER ---------- */
.footer {
  background: var(--surface-lowest);
  border-top: 1px solid rgba(255,255,255,0.04);
  padding: 80px 32px 40px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.footer-brand p {
  margin-top: 20px;
  max-width: 340px;
  font-size: 0.9rem;
}

.footer-col h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  color: var(--red);
  margin-bottom: 20px;
  text-transform: uppercase;
}

.footer-col ul { list-style: none; }

.footer-col li { margin-bottom: 12px; }

.footer-col a {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  color: var(--text-muted);
  transition: color var(--transition);
  text-transform: uppercase;
}

.footer-col a:hover { color: var(--red); }

.footer-bottom {
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-copy {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
}

.footer-socials {
  display: flex;
  gap: 16px;
}

.footer-socials a {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  transition: color var(--transition), transform var(--transition);
}

.footer-socials a:hover {
  color: var(--red);
  transform: translateY(-2px);
}

/* ---------- PAGE HEADER (non-home pages) ---------- */
.page-header {
  background: var(--surface);
  padding: 140px 32px 80px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.page-header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.page-header h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  margin-bottom: 16px;
}

.page-header p {
  max-width: 600px;
  font-size: 1rem;
}

.breadcrumb {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.breadcrumb a { color: var(--text-muted); transition: color var(--transition); }
.breadcrumb a:hover { color: var(--red); }
.breadcrumb .sep { margin: 0 10px; color: var(--red); }

/* ---------- STORE PAGE ---------- */
.store-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 40px;
  align-items: start;
}

.filters {
  position: sticky;
  top: calc(var(--header-height) + 32px);
  background: var(--surface-low);
  padding: 32px 24px;
  border-left: 2px solid var(--red);
}

.filters h3 {
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  margin-bottom: 24px;
}

.filter-group {
  margin-bottom: 28px;
}

.filter-group-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.filter-option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text-dim);
  transition: color var(--transition);
}

.filter-option:hover { color: #fff; }

.filter-option input[type="checkbox"] {
  appearance: none;
  width: 14px;
  height: 14px;
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.15);
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
}

.filter-option input[type="checkbox"]:checked {
  background: var(--red);
  border-color: var(--red);
}

.filter-option input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  inset: 0;
  color: #fff;
  font-size: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.filter-count {
  margin-left: auto;
  font-family: 'Space Grotesk', monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.store-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 20px;
  margin-bottom: 24px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.store-count {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.store-count strong { color: var(--red); font-weight: 700; }

.store-sort {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--surface-low);
  padding: 10px 14px;
  border: none;
  border-left: 2px solid var(--red);
  cursor: pointer;
  color: #fff;
}

/* ---------- PRODUCT DETAIL ---------- */
.product-detail {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 60px;
  padding: 60px 32px 120px;
  max-width: var(--max-width);
  margin: 0 auto;
  position: relative;
}

.product-gallery {
  position: sticky;
  top: calc(var(--header-height) + 32px);
  align-self: start;
}

.gallery-main {
  background: var(--surface-lowest);
  aspect-ratio: 1/1;
  position: relative;
  overflow: hidden;
  margin-bottom: 16px;
}

.gallery-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-counter {
  position: absolute;
  bottom: 16px;
  right: 16px;
  background: rgba(10,10,10,0.7);
  backdrop-filter: blur(10px);
  font-family: 'Space Grotesk', monospace;
  font-size: 0.7rem;
  padding: 6px 10px;
  color: #fff;
  letter-spacing: 0.1em;
}

.gallery-thumbs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.gallery-thumb {
  aspect-ratio: 1/1;
  background: var(--surface-low);
  cursor: pointer;
  transition: opacity var(--transition);
  position: relative;
}

.gallery-thumb.active {
  outline: 2px solid var(--red);
  outline-offset: -2px;
}

.gallery-thumb:not(.active) { opacity: 0.6; }
.gallery-thumb:hover { opacity: 1; }

.gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }

.product-info .product-id {
  margin-bottom: 16px;
  font-size: 0.75rem;
}

.product-info h1 {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  margin-bottom: 16px;
}

.product-detail-price {
  font-family: 'Space Grotesk', monospace;
  font-size: 2rem;
  font-weight: 600;
  color: var(--red);
  margin-bottom: 32px;
  letter-spacing: 0.02em;
}

.product-description {
  font-size: 0.95rem;
  color: var(--text-dim);
  margin-bottom: 32px;
  line-height: 1.75;
}

.product-specs-panel {
  background: var(--surface-low);
  padding: 24px;
  border-left: 2px solid var(--red);
  margin-bottom: 32px;
}

.product-specs-panel h4 {
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  color: var(--red);
  margin-bottom: 16px;
}

.product-specs-panel .spec-pair {
  padding: 8px 0;
  font-size: 0.8rem;
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.product-specs-panel .spec-pair:last-child { border-bottom: none; }

.qty-selector {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 24px;
}

.qty-selector label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.qty-box {
  display: flex;
  background: var(--surface-low);
  border-left: 2px solid var(--red);
}

.qty-box button {
  width: 40px;
  height: 44px;
  color: #fff;
  font-size: 1.1rem;
  transition: background var(--transition);
}

.qty-box button:hover { background: var(--surface-container); }

.qty-box input {
  width: 50px;
  text-align: center;
  background: transparent;
  border: none;
  color: #fff;
  font-family: 'Space Grotesk', monospace;
  font-weight: 600;
}

.qty-box input:focus { outline: none; }

.product-actions {
  display: flex;
  gap: 12px;
  margin-bottom: 32px;
}

.product-actions .btn-primary { flex: 1; }

.product-extras {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.extra-item {
  text-align: center;
}

.extra-item svg {
  margin: 0 auto 8px;
  color: var(--red);
}

.extra-item .label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 2px;
}

.extra-item .value {
  font-size: 0.75rem;
  color: #fff;
  font-weight: 600;
}

/* ---------- CART PAGE ---------- */
.cart-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 40px;
  padding: 60px 32px 120px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.cart-items {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.cart-header {
  display: grid;
  grid-template-columns: 100px 2fr 120px 120px 100px 40px;
  gap: 20px;
  padding: 16px 20px;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: var(--surface-low);
}

.cart-item {
  display: grid;
  grid-template-columns: 100px 2fr 120px 120px 100px 40px;
  gap: 20px;
  padding: 20px;
  background: var(--surface);
  align-items: center;
  transition: background var(--transition);
}

.cart-item:hover { background: var(--surface-low); }

.cart-item-img {
  width: 80px;
  height: 80px;
  background: var(--surface-lowest);
  overflow: hidden;
}

.cart-item-img img { width: 100%; height: 100%; object-fit: cover; }

.cart-item-title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  color: #fff;
  margin-bottom: 4px;
}

.cart-item-id {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--red);
}

.cart-item-price, .cart-item-total {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
}

.cart-item-total { color: var(--red); }

.cart-item .qty-box {
  width: fit-content;
}

.cart-item .qty-box button { width: 30px; height: 36px; }
.cart-item .qty-box input { width: 36px; }

.cart-remove {
  width: 32px;
  height: 32px;
  color: var(--text-muted);
  transition: color var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.cart-remove:hover { color: var(--red); }

.cart-summary {
  background: var(--surface-low);
  padding: 32px;
  border-left: 2px solid var(--red);
  position: sticky;
  top: calc(var(--header-height) + 32px);
  align-self: start;
}

.cart-summary h3 {
  font-size: 0.8rem;
  letter-spacing: 0.25em;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
}

.summary-row span:first-child {
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.7rem;
}

.summary-row span:last-child {
  font-family: 'Space Grotesk', monospace;
  font-weight: 600;
  color: #fff;
}

.summary-total {
  padding-top: 20px;
  margin-top: 12px;
  border-top: 1px solid rgba(255,255,255,0.06);
}

.summary-total span:first-child {
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
}

.summary-total span:last-child {
  font-size: 1.5rem;
  color: var(--red);
}

.promo-input {
  display: flex;
  gap: 4px;
  margin: 24px 0;
}

.promo-input input {
  flex: 1;
  padding: 12px 14px;
  background: var(--surface);
  border: none;
  border-bottom: 2px solid rgba(255,255,255,0.1);
  color: #fff;
  font-family: 'Space Grotesk', monospace;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.promo-input input:focus {
  outline: none;
  border-bottom-color: var(--red);
}

.promo-input button {
  padding: 0 18px;
  background: var(--surface-highest);
  color: #fff;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  transition: background var(--transition);
}

.promo-input button:hover { background: var(--red); }

.cart-actions {
  margin-top: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cart-empty {
  text-align: center;
  padding: 80px 32px;
  max-width: 500px;
  margin: 0 auto;
}

.cart-empty-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  color: var(--text-muted);
}

/* ---------- CONTACT PAGE ---------- */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  padding: 60px 32px 120px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.contact-info h2 { margin-bottom: 20px; }

.contact-info p {
  margin-bottom: 32px;
  font-size: 1rem;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 32px;
}

.contact-method {
  background: var(--surface-low);
  padding: 20px 24px;
  border-left: 2px solid var(--red);
  display: flex;
  align-items: center;
  gap: 20px;
  transition: background var(--transition);
  color: inherit;
}

.contact-method:hover { background: var(--surface-container); }

.contact-method-icon {
  width: 40px;
  height: 40px;
  background: var(--red);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  flex-shrink: 0;
}

.contact-method-label {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.6rem;
  letter-spacing: 0.25em;
  color: var(--text-muted);
  margin-bottom: 4px;
  text-transform: uppercase;
}

.contact-method-value {
  font-family: 'Space Grotesk', monospace;
  font-size: 0.9rem;
  font-weight: 600;
  color: #fff;
  letter-spacing: 0.02em;
}

.contact-form {
  background: var(--surface-low);
  padding: 40px;
  border-left: 2px solid var(--red);
}

.contact-form h3 {
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  margin-bottom: 32px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 20px;
}

.form-field { margin-bottom: 20px; }

.form-field label {
  display: block;
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.form-field input,
.form-field textarea,
.form-field select {
  width: 100%;
  padding: 14px 16px;
  background: var(--surface);
  border: none;
  border-bottom: 2px solid rgba(255,255,255,0.1);
  color: #fff;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  border-radius: 0;
  transition: border-color var(--transition), background var(--transition);
}

.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  outline: none;
  border-bottom-color: var(--red);
  background: var(--surface-container);
}

.form-field textarea {
  min-height: 120px;
  resize: vertical;
  font-family: inherit;
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-bottom: 24px;
  cursor: pointer;
}

.form-checkbox input {
  appearance: none;
  width: 16px;
  height: 16px;
  background: var(--surface);
  border: 1px solid rgba(255,255,255,0.2);
  cursor: pointer;
  position: relative;
}

.form-checkbox input:checked {
  background: var(--red);
  border-color: var(--red);
}

.form-checkbox input:checked::after {
  content: '✓';
  position: absolute;
  inset: 0;
  color: #fff;
  font-size: 11px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---------- ABOUT PAGE ---------- */
.about-section {
  background: var(--surface);
  padding: 80px 32px;
}

.about-section:nth-child(even) {
  background: var(--surface-low);
}

.about-container {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 80px;
  align-items: start;
}

.about-container.reverse {
  grid-template-columns: 1.5fr 1fr;
}

.about-container.reverse .about-text { order: -1; }

.about-number {
  font-family: 'Space Grotesk', monospace;
  font-size: 4rem;
  font-weight: 700;
  color: rgba(227, 6, 19, 0.15);
  line-height: 1;
  margin-bottom: 16px;
}

.about-text h2 {
  font-size: 2rem;
  margin-bottom: 20px;
}

.about-text p {
  font-size: 1rem;
  margin-bottom: 16px;
  line-height: 1.75;
}

.about-stats {
  background: var(--surface);
  padding: 32px;
  border-left: 2px solid var(--red);
}

.about-stat-row {
  display: flex;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
  font-family: 'Space Grotesk', monospace;
  font-size: 0.8rem;
}

.about-stat-row:last-child { border-bottom: none; }

.about-stat-row span:first-child {
  color: var(--text-muted);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.7rem;
}

.about-stat-row span:last-child {
  color: #fff;
  font-weight: 600;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; gap: 60px; }
  .hero-specs { max-width: 400px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
  .store-layout { grid-template-columns: 1fr; }
  .filters { position: static; }
  .product-detail { grid-template-columns: 1fr; gap: 40px; }
  .product-gallery { position: static; }
  .cart-layout { grid-template-columns: 1fr; }
  .cart-summary { position: static; }
  .contact-layout { grid-template-columns: 1fr; }
  .about-container, .about-container.reverse { grid-template-columns: 1fr; gap: 32px; }
  .about-container.reverse .about-text { order: 0; }
}

@media (max-width: 768px) {
  :root { --header-height: 64px; }

  .header-inner { padding: 0 20px; }
  .nav { display: none; }
  .menu-toggle { display: flex; }

  .section, .hero, .page-header { padding-left: 20px; padding-right: 20px; }
  .hero { padding-top: 120px; padding-bottom: 60px; }
  .manifesto, .initiate { padding: 80px 20px; }

  .hero-title { font-size: 2.8rem; }

  .section-head { flex-direction: column; align-items: flex-start; }
  .section-stats { gap: 24px; }
  .stat-item { text-align: left; }

  .protocol {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 28px 20px;
  }
  .protocol-index { font-size: 2rem; }

  .meta-grid { grid-template-columns: 1fr; }
  .initiate-ctas { flex-direction: column; }
  .initiate-ctas .btn { width: 100%; }

  .footer { padding: 60px 20px 30px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; padding-bottom: 40px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }

  .cart-header { display: none; }
  .cart-item {
    grid-template-columns: 80px 1fr 40px;
    grid-template-areas:
      "img info remove"
      "img price price"
      "img qty total";
    gap: 12px;
  }
  .cart-item-img { grid-area: img; }
  .cart-item-info { grid-area: info; }
  .cart-item-price { grid-area: price; font-size: 0.8rem; color: var(--text-muted); }
  .cart-item .qty-box { grid-area: qty; }
  .cart-item-total { grid-area: total; text-align: right; }
  .cart-remove { grid-area: remove; }

  .contact-form { padding: 24px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }

  .about-section { padding: 60px 20px; }
  .page-header { padding: 110px 20px 50px; }

  .btn { padding: 16px 28px; font-size: 0.68rem; }
}

@media (max-width: 480px) {
  .logo-img { height: 36px; }
  .header-actions { gap: 12px; }
  .hero-title { font-size: 2.2rem; }
  h2 { font-size: 1.8rem; }
  .product-extras { grid-template-columns: 1fr; }
}

/* ---------- MOBILE MENU ---------- */
.mobile-menu {
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--surface-lowest);
  z-index: 99;
  padding: 40px 24px;
  transform: translateX(100%);
  transition: transform 0.3s var(--ease);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.mobile-menu.open { transform: translateX(0); }

.mobile-menu a {
  background: var(--surface);
  padding: 20px 24px;
  border-left: 2px solid transparent;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: #fff;
  transition: all var(--transition);
}

.mobile-menu a.active,
.mobile-menu a:hover {
  border-left-color: var(--red);
  background: var(--surface-low);
  color: var(--red);
}