/* ============================================
   NAVEN — Design System
   VOID / PULSE / FLOW
   ============================================ */

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

@font-face {
  font-family: 'Microgramma';
  src: local('Microgramma'), local('Microgramma-D'), local('Microgramma Bold');
  font-weight: bold;
  font-style: normal;
  font-display: swap;
}

/* --- CSS Custom Properties --- */
:root {
  --void: #000000;
  --pulse: #8FF577;
  --flow: #3290FF;
  --void-2: #1C1C1C;
  --sage: #8FAF9B;
  --light: #F3F4F4;
  --white: #FFFFFF;

  --bg-primary: #000000;
  --bg-secondary: #1C1C1C;
  --bg-card: #1C1C1C;
  --bg-alt: #111111;
  --bg-footer: #0A0A0A;
  --text-primary: #FFFFFF;
  --text-secondary: rgba(255,255,255,0.6);
  --text-muted: rgba(255,255,255,0.35);
  --text-dim: rgba(255,255,255,0.2);
  --border-color: rgba(255,255,255,0.06);
  --border-mid: rgba(255,255,255,0.1);
  --border-strong: rgba(255,255,255,0.15);
  --logo-filter: none;
  --hero-bg: #000000;
  --nav-bg: rgba(0,0,0,0.85);
  --card-hover: rgba(255,255,255,0.03);
  --overlay-gradient: linear-gradient(90deg, rgba(0,0,0,0.7) 0%, transparent 60%);
}

[data-theme="light"] {
  --bg-primary: #F3F4F4;
  --bg-secondary: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-alt: #EBEBEB;
  --bg-footer: #E5E5E5;
  --text-primary: #000000;
  --text-secondary: rgba(0,0,0,0.55);
  --text-muted: rgba(0,0,0,0.35);
  --text-dim: rgba(0,0,0,0.2);
  --border-color: rgba(0,0,0,0.06);
  --border-mid: rgba(0,0,0,0.1);
  --border-strong: rgba(0,0,0,0.15);
  --logo-filter: invert(1);
  --hero-bg: #000000;
  --nav-bg: rgba(243,244,244,0.9);
  --card-hover: rgba(0,0,0,0.02);
  --overlay-gradient: linear-gradient(90deg, rgba(0,0,0,0.5) 0%, transparent 60%);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: background 0.4s ease, color 0.4s ease;
  line-height: 1.5;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Microgramma', 'Inter', 'Helvetica Neue', sans-serif;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1;
}

.display-1 {
  font-size: clamp(3rem, 7vw, 6.5rem);
  letter-spacing: 0.03em;
  line-height: 0.92;
}

.display-2 {
  font-size: clamp(2rem, 4.5vw, 4rem);
  letter-spacing: 0.03em;
  line-height: 0.95;
}

.display-3 {
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  letter-spacing: 0.04em;
  line-height: 1;
}

.body-large {
  font-size: 18px;
  line-height: 1.6;
  font-weight: 400;
}

.body {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-secondary);
}

.body-small {
  font-size: 13px;
  line-height: 1.6;
  color: var(--text-muted);
}

.label {
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--text-muted);
}

.label-pill {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  border-radius: 100px;
  font-size: 9px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 600;
}

.label-pill.pulse {
  background: rgba(143, 245, 119, 0.1);
  color: var(--pulse);
}

/* --- Buttons --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--pulse);
  color: var(--void);
  padding: 14px 32px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.32, 0.72, 0, 1);
  border-radius: 100px;
}

.btn-primary:hover {
  background: #a8ff8a;
  transform: scale(0.98);
}

.btn-primary .btn-arrow {
  display: inline-flex;
  width: 24px;
  height: 24px;
  background: rgba(0,0,0,0.1);
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s cubic-bezier(0.32, 0.72, 0, 1);
  font-size: 12px;
}

.btn-primary:hover .btn-arrow {
  transform: translateX(2px) translateY(-1px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: transparent;
  color: var(--text-primary);
  padding: 14px 0;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  border-bottom: 1px solid var(--border-mid);
  transition: all 0.3s cubic-bezier(0.32, 0.72, 0, 1);
}

.btn-secondary:hover {
  border-color: var(--pulse);
  color: var(--pulse);
  gap: 14px;
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: transparent;
  color: var(--text-primary);
  padding: 12px 28px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  border: 1px solid var(--border-strong);
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.32, 0.72, 0, 1);
  border-radius: 100px;
}

.btn-outline:hover {
  border-color: var(--pulse);
  color: var(--pulse);
}

/* --- Layout --- */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
}

.container-sm {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 48px;
}

section {
  padding: 120px 0;
  background: var(--bg-primary);
  transition: background 0.4s ease;
}

section.alt {
  background: var(--bg-alt);
}

.section-header {
  margin-bottom: 64px;
}

.section-header .label {
  margin-bottom: 16px;
  display: block;
}

.section-header p {
  margin-top: 20px;
  max-width: 520px;
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.6;
}

/* --- Grids --- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; }
.grid-4-gap { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* --- Cards --- */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 48px 40px;
  transition: background 0.3s ease, transform 0.3s cubic-bezier(0.32, 0.72, 0, 1);
}

.card:hover {
  background: var(--card-hover);
}

.card h3 { margin-bottom: 12px; }
.card p { font-size: 14px; color: var(--text-secondary); line-height: 1.6; }
.card .num { font-size: 48px; font-weight: 700; color: var(--pulse); line-height: 1; margin-bottom: 16px; font-family: 'Microgramma', 'Inter', sans-serif; }

/* --- Top Bar --- */
.topbar {
  background: var(--void-2);
  padding: 8px 48px;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 20px;
  font-size: 11px;
  transition: background 0.3s ease;
}

.topbar a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 11px;
  transition: color 0.2s;
}

.topbar a:hover { color: var(--text-primary); }

.lang-toggle {
  display: inline-flex;
  gap: 4px;
  align-items: center;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
}

.lang-toggle span {
  cursor: pointer;
  padding: 2px 8px;
  border-radius: 2px;
  color: var(--text-muted);
  transition: all 0.2s;
}

.lang-toggle span.active {
  color: var(--pulse);
  background: rgba(143, 245, 119, 0.1);
}

.lang-toggle span:hover { color: var(--text-primary); }
.lang-divider { color: var(--border-mid); }

/* --- Navigation --- */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 48px;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  transition: background 0.3s ease, border-color 0.3s ease;
}

.nav-logo { height: 64px; width: auto; display: block; }
nav > a { color: inherit; text-decoration: none; }
.nav-links { display: flex; gap: 28px; align-items: center; }

.nav-links a {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s;
  position: relative;
  padding: 14px 0;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--pulse);
  transition: width 0.3s cubic-bezier(0.32, 0.72, 0, 1);
}

.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--text-primary); }
.nav-links a.active::after { width: 100%; background: var(--pulse); }

.nav-icons { display: flex; gap: 16px; align-items: center; }

.theme-btn {
  background: none; border: none; cursor: pointer;
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  transition: all 0.2s;
  color: var(--text-muted);
}

.theme-btn:hover { background: var(--border-color); color: var(--text-primary); }

.theme-btn svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 1.5; }

.nav-icon-btn {
  background: none; border: none; cursor: pointer;
  color: var(--text-muted);
  padding: 4px;
  transition: color 0.2s;
  display: flex;
  align-items: center;
}

.nav-icon-btn:hover { color: var(--text-primary); }

.nav-icon-btn svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.5; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--text-primary);
  transition: all 0.3s cubic-bezier(0.32, 0.72, 0, 1);
  transform-origin: center;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(4.5px, 4.5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4.5px, -4.5px);
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100dvh;
  background: rgba(0,0,0,0.95);
  backdrop-filter: blur(40px);
  -webkit-backdrop-filter: blur(40px);
  z-index: 98;
  padding: 100px 48px 48px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s cubic-bezier(0.32, 0.72, 0, 1);
}

[data-theme="light"] .mobile-nav {
  background: rgba(243,244,244,0.98);
}

.mobile-nav.open {
  opacity: 1;
  pointer-events: all;
}

.mobile-nav a {
  display: block;
  font-family: 'Microgramma', 'Inter', sans-serif;
  font-size: 28px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-primary);
  text-decoration: none;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-color);
  transform: translateY(20px);
  opacity: 0;
  transition: all 0.5s cubic-bezier(0.32, 0.72, 0, 1);
}

.mobile-nav.open a {
  transform: translateY(0);
  opacity: 1;
}

.mobile-nav.open a:nth-child(1) { transition-delay: 0.05s; }
.mobile-nav.open a:nth-child(2) { transition-delay: 0.1s; }
.mobile-nav.open a:nth-child(3) { transition-delay: 0.15s; }
.mobile-nav.open a:nth-child(4) { transition-delay: 0.2s; }
.mobile-nav.open a:nth-child(5) { transition-delay: 0.25s; }
.mobile-nav.open a:nth-child(6) { transition-delay: 0.3s; }

.mobile-nav a:hover { color: var(--pulse); }

/* --- Hero --- */
.hero {
  padding: 0;
  position: relative;
  overflow: hidden;
  background: var(--hero-bg);
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 90vh;
}

.hero-content {
  padding: 120px 48px 100px 64px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  position: relative;
  z-index: 2;
}

.hero-content .hero-logo {
  height: 256px;
  width: auto;
  margin-bottom: 40px;
}

.hero-content h1 { color: var(--white); }
.hero-content .hero-sub {
  margin-top: 24px;
  max-width: 440px;
  color: rgba(255,255,255,0.5);
  font-size: 17px;
  line-height: 1.6;
}

.hero-cta {
  margin-top: 40px;
  display: flex;
  gap: 24px;
  align-items: center;
  flex-wrap: wrap;
}

.hero-cta .btn-secondary {
  color: rgba(255,255,255,0.6);
  border-color: rgba(255,255,255,0.15);
}

.hero-cta .btn-secondary:hover {
  color: var(--white);
  border-color: var(--pulse);
}

.hero-visual {
  position: relative;
  overflow: hidden;
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-visual-overlay {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
  background: var(--overlay-gradient);
}

/* --- Stats Bar --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-color);
}

.stat-item {
  background: var(--bg-primary);
  padding: 48px 32px;
  text-align: center;
  transition: background 0.3s ease;
}

.stat-item .num {
  font-size: 48px;
  font-weight: 700;
  color: var(--pulse);
  line-height: 1;
  font-family: 'Microgramma', 'Inter', sans-serif;
  letter-spacing: -0.02em;
}

.stat-item .desc {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 10px;
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* --- Split Layout --- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.split-content {
  max-width: 480px;
}

/* --- Product Grid --- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border-color);
}

.product-card {
  background: var(--bg-card);
  position: relative;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.4s cubic-bezier(0.32, 0.72, 0, 1), background 0.3s ease;
}

.product-card:hover {
  transform: translateY(-6px);
  z-index: 2;
}

.product-card img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  display: block;
}

.product-info {
  padding: 16px 20px 24px;
}

.product-info .category {
  font-size: 10px;
  color: var(--text-muted);
  margin-bottom: 4px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.product-info h4 {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
  text-transform: none;
  letter-spacing: 0;
}

.product-info .price {
  font-size: 14px;
  font-weight: 500;
  color: var(--pulse);
}

.product-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--pulse);
  color: var(--void);
  font-size: 8px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 10px;
  font-weight: 700;
  border-radius: 2px;
}

/* --- Tech Grid --- */
.tech-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border-color);
}

.tech-grid .tech-card:first-child {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}

.tech-grid .tech-card:first-child .tech-name {
  font-size: 32px;
}

.tech-grid .tech-card:first-child p {
  font-size: 14px;
}

.tech-card {
  background: var(--bg-card);
  padding: 56px 40px;
  transition: background 0.3s ease;
  position: relative;
}

.tech-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--pulse);
}

.tech-card[data-accent="sage"]::before { background: var(--sage); }
.tech-card[data-accent="flow"]::before { background: var(--flow); }

.tech-card .tech-name {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 4px;
}

.tech-card .tech-tag {
  font-size: 9px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 16px;
  display: block;
}

.tech-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.tech-card .partner {
  margin-top: 16px;
  font-size: 11px;
  font-weight: 500;
}

/* --- Flywheel --- */
.flywheel-wrap {
  display: flex;
  align-items: center;
  gap: 80px;
}

.flywheel {
  width: 280px;
  height: 280px;
  border-radius: 50%;
  border: 1px solid var(--border-mid);
  position: relative;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.fw-center {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--pulse);
  color: var(--void);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-align: center;
  line-height: 1.2;
}

.fw-item {
  position: absolute;
  font-size: 11px;
  font-weight: 500;
  text-align: center;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

.fw-1 { top: -28px; left: 50%; transform: translateX(-50%); color: var(--pulse); }
.fw-2 { right: -56px; top: 50%; transform: translateY(-50%); }
.fw-3 { bottom: -28px; left: 50%; transform: translateX(-50%); color: var(--flow); }
.fw-4 { left: -56px; top: 50%; transform: translateY(-50%); }

.fw-steps { flex: 1; }

.fw-step {
  display: flex;
  gap: 20px;
  margin-bottom: 28px;
}

.fw-step:last-child { margin-bottom: 0; }

.fw-step-num {
  font-size: 36px;
  font-weight: 700;
  color: var(--pulse);
  line-height: 1;
  font-family: 'Microgramma', 'Inter', sans-serif;
  min-width: 48px;
}

.fw-step h4 {
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 4px;
  text-transform: none;
  letter-spacing: 0;
}

.fw-step p {
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
}

/* --- Positioning Map --- */
.pos-map {
  position: relative;
  height: 260px;
  border-left: 1px solid var(--border-mid);
  border-bottom: 1px solid var(--border-mid);
  margin-top: 24px;
  padding: 24px;
}

.pos-map span {
  position: absolute;
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
}

.pos-map .naven-dot {
  color: var(--pulse);
  font-weight: 700;
  background: var(--bg-primary);
  padding: 3px 14px;
  border: 1px solid var(--pulse);
  border-radius: 100px;
}

.pos-label {
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  font-weight: 600;
}

/* --- Brand Image Grid --- */
.brand-img-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border-color);
}

.brand-img-grid img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  display: block;
}

/* --- Scroll Reveal --- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 0.7s cubic-bezier(0.25, 0.1, 0, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Quote Section --- */
.quote-section {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.quote-divider {
  width: 48px;
  height: 2px;
  background: var(--pulse);
  margin: 24px auto;
}

.quote-section .closing-text {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 420px;
  margin: 0 auto;
  line-height: 1.6;
}

/* --- Filter Tabs --- */
.filter-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.filter-tab {
  padding: 12px 24px;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 100px;
  transition: all 0.3s cubic-bezier(0.32, 0.72, 0, 1);
  min-height: 44px;
}

.filter-tab:hover {
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.filter-tab.active {
  background: var(--pulse);
  color: var(--void);
  border-color: var(--pulse);
}

/* --- Form --- */
.form-group {
  margin-bottom: 24px;
}

.form-group label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  padding: 14px 16px;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  color: var(--text-primary);
  border-radius: 0;
  transition: border-color 0.3s ease;
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--pulse);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

/* --- Page Hero --- */
.page-hero {
  padding: 100px 0 80px;
}

.page-hero .label {
  margin-bottom: 16px;
  display: block;
}

.page-hero p {
  margin-top: 20px;
  max-width: 520px;
  color: var(--text-secondary);
}

/* --- Timeline --- */
.timeline {
  position: relative;
  padding-left: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 0;
  bottom: 0;
  width: 1px;
  background: var(--border-mid);
}

.timeline-item {
  position: relative;
  margin-bottom: 48px;
}

.timeline-item:last-child { margin-bottom: 0; }

.timeline-item::before {
  content: '';
  position: absolute;
  left: -33px;
  top: 4px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--pulse);
  border: 2px solid var(--bg-primary);
}

.timeline-item .date {
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--pulse);
  margin-bottom: 8px;
}

.timeline-item h3 {
  font-family: 'Inter', sans-serif;
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  text-transform: none;
  letter-spacing: 0;
}

.timeline-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --- Footer --- */
/* --- Focus Styles (global) --- */
:focus-visible {
  outline: 2px solid var(--pulse);
  outline-offset: 2px;
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

footer {
  background: var(--bg-footer);
  padding: 80px 0 32px;
  border-top: 1px solid var(--border-color);
  transition: background 0.3s ease;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand img { height: 28px; margin-bottom: 16px; }
.footer-brand p { font-size: 12px; color: var(--text-dim); max-width: 280px; line-height: 1.6; }

.footer-col h4 {
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 20px;
  color: var(--text-muted);
  font-family: 'Microgramma', 'Inter', sans-serif;
}

.footer-col a {
  display: block;
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  margin-bottom: 12px;
  transition: color 0.2s;
  padding: 4px 0;
}

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

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 24px;
  margin-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 11px;
  color: var(--text-dim);
}

/* --- Cart Panel --- */
.cart-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(0.32, 0.72, 0, 1);
}

.cart-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.cart-panel {
  position: fixed;
  top: 0; right: 0;
  width: 420px;
  max-width: 100vw;
  height: 100dvh;
  background: var(--bg-secondary);
  border-left: 1px solid var(--border-color);
  z-index: 201;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.32, 0.72, 0, 1);
  display: flex;
  flex-direction: column;
}

.cart-panel.open { transform: translateX(0); }

.cart-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-color);
}

.cart-header h3 {
  font-family: 'Microgramma', 'Inter', sans-serif;
  font-size: 16px;
  letter-spacing: 0.1em;
}

.cart-close {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 20px;
  padding: 4px;
  transition: color 0.2s;
}

.cart-close:hover { color: var(--text-primary); }

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 16px 24px;
}

.cart-empty {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}

.cart-empty svg {
  width: 48px;
  height: 48px;
  stroke: var(--text-dim);
  margin-bottom: 16px;
}

.cart-empty p { font-size: 14px; }

.cart-item {
  display: flex;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-color);
}

.cart-item-img {
  width: 72px;
  height: 72px;
  object-fit: cover;
  flex-shrink: 0;
}

.cart-item-info { flex: 1; min-width: 0; }

.cart-item-info h4 {
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0;
  margin-bottom: 2px;
}

.cart-item-info .cart-item-meta {
  font-size: 11px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.cart-item-info .cart-item-price {
  font-size: 13px;
  color: var(--pulse);
  font-weight: 500;
}

.cart-item-remove {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 12px;
  padding: 4px;
  align-self: flex-start;
  transition: color 0.2s;
}

.cart-item-remove:hover { color: #ff4444; }

.cart-footer {
  padding: 20px 24px;
  border-top: 1px solid var(--border-color);
}

.cart-total {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  font-family: 'Microgramma', 'Inter', sans-serif;
  font-size: 14px;
  letter-spacing: 0.08em;
}

.cart-total .cart-total-amount {
  color: var(--pulse);
  font-size: 18px;
}

.cart-checkout {
  width: 100%;
  text-align: center;
  justify-content: center;
}

.cart-count-badge {
  position: absolute;
  top: -4px;
  right: -6px;
  background: var(--pulse);
  color: var(--void);
  font-size: 8px;
  font-weight: 700;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0);
  transition: all 0.3s cubic-bezier(0.32, 0.72, 0, 1);
}

.cart-count-badge.visible {
  opacity: 1;
  transform: scale(1);
}

.cart-btn-wrap {
  position: relative;
  display: inline-flex;
}

/* --- Quick View Modal --- */
.modal-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(8px);
  z-index: 300;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s cubic-bezier(0.32, 0.72, 0, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}

.modal-content {
  background: var(--bg-secondary);
  max-width: 800px;
  width: 100%;
  max-height: 90dvh;
  overflow-y: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  transform: translateY(20px) scale(0.97);
  transition: transform 0.4s cubic-bezier(0.32, 0.72, 0, 1);
}

.modal-overlay.open .modal-content {
  transform: translateY(0) scale(1);
}

.modal-image {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  display: block;
}

.modal-body {
  padding: 40px;
  display: flex;
  flex-direction: column;
}

.modal-body .modal-category {
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.modal-body h2 {
  font-family: 'Microgramma', 'Inter', sans-serif;
  font-size: 24px;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.modal-body .modal-price {
  font-size: 20px;
  font-weight: 500;
  color: var(--pulse);
  margin-bottom: 24px;
}

.modal-body .modal-desc {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 24px;
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: all 0.2s;
  z-index: 1;
}

.modal-close:hover {
  background: var(--text-primary);
  color: var(--bg-primary);
}

.size-selector {
  margin-bottom: 24px;
}

.size-selector label {
  display: block;
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.size-options {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.size-btn {
  width: 44px;
  height: 44px;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-muted);
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.size-btn:hover {
  border-color: var(--pulse);
  color: var(--text-primary);
}

.size-btn.active {
  border-color: var(--pulse);
  background: var(--pulse);
  color: var(--void);
}

.modal-content-wrap {
  position: relative;
}

/* --- Back to Top --- */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--pulse);
  color: var(--void);
  border: none;
  cursor: pointer;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: all 0.3s cubic-bezier(0.32, 0.72, 0, 1);
  box-shadow: 0 4px 20px rgba(143, 245, 119, 0.3);
}

.back-to-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}

.back-to-top:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 30px rgba(143, 245, 119, 0.4);
}

/* --- Newsletter --- */
.newsletter {
  background: var(--void-2);
  padding: 80px 0;
  text-align: center;
}

.newsletter h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  margin-bottom: 12px;
}

.newsletter p {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 32px;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

.newsletter-form {
  display: flex;
  gap: 0;
  max-width: 420px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-right: none;
  padding: 14px 16px;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.3s ease;
}

.newsletter-form input:focus {
  border-color: var(--pulse);
}

.newsletter-form button {
  padding: 14px 24px;
  background: var(--pulse);
  color: var(--void);
  border: none;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}

.newsletter-form button:hover {
  background: #a8ff8a;
}

.newsletter-success {
  display: none;
  color: var(--pulse);
  font-size: 14px;
  margin-top: 16px;
}

/* --- Mobile Bottom Nav --- */
.mobile-bottom-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100%;
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--border-color);
  z-index: 90;
  padding: 8px 0;
  padding-bottom: max(8px, env(safe-area-inset-bottom, 8px));
}

.mobile-bottom-nav-inner {
  display: flex;
  justify-content: space-around;
  align-items: center;
}

.mobile-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 8px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 500;
  transition: color 0.2s;
  padding: 4px 12px;
  min-width: 0;
}

.mobile-nav-item svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.5;
}

.mobile-nav-item.active {
  color: var(--pulse);
}

.mobile-nav-item:hover {
  color: var(--text-primary);
}

/* --- Toast Notification --- */
.toast {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--pulse);
  color: var(--void);
  padding: 12px 24px;
  font-size: 13px;
  font-weight: 500;
  border-radius: 100px;
  z-index: 999;
  opacity: 0;
  pointer-events: none;
  transition: all 0.4s cubic-bezier(0.32, 0.72, 0, 1);
  white-space: nowrap;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  pointer-events: none;
}

/* --- Responsive --- */
@media (max-width: 1024px) {
  .container, .container-sm { padding: 0 32px; }
  section { padding: 80px 0; }
  .grid-4, .grid-4-gap { grid-template-columns: 1fr 1fr; }
  .product-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .tech-grid { grid-template-columns: 1fr; }
  .tech-grid .tech-card:first-child {
    grid-template-columns: 1fr;
  }
  .tech-grid .tech-card:first-child .tech-name { font-size: 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .flywheel-wrap { flex-direction: column; gap: 48px; }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { min-height: 40vh; }
  .hero-content { padding: 80px 32px 60px; }
  .split { gap: 48px; }
}

@media (max-width: 768px) {
  .container, .container-sm { padding: 0 20px; }
  section { padding: 64px 0; }
  nav { padding: 12px 20px; }
  .topbar { padding: 8px 20px; justify-content: center; }
  .nav-links, .nav-icons { display: none; }
  .hamburger { display: flex; }
  .mobile-nav { display: block; }
  .mobile-bottom-nav { display: block; }
  body { padding-bottom: 64px; }
  .back-to-top { bottom: 80px; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; gap: 24px; }
  .grid-4, .grid-4-gap { grid-template-columns: 1fr 1fr; gap: 1px; }
  .product-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid .stat-item { padding: 32px 20px; }
  .stat-item .num { font-size: 36px; }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
  .footer-col a { padding: 12px 0; }
  .tech-card { padding: 40px 24px; }
  .page-hero { padding: 60px 0 40px; }
  .hero-content { padding: 60px 20px 40px; }
  .hero-content .hero-logo { height: 160px; }
  .mobile-nav { padding: 80px 24px 24px; }
  .mobile-nav a { font-size: 22px; }
  .flywheel { width: 220px; height: 220px; }
  .fw-2 { right: -36px; }
  .fw-4 { left: -36px; }
  .modal-content { grid-template-columns: 1fr; }
  .modal-body { padding: 24px; }
  .cart-panel { width: 100vw; }
}

@media (max-width: 480px) {
  .product-grid { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
}