/* ─────────────────────────────────────────────────
   NumOS / NeoCalculator — Landing Page Stylesheet
   Design System: Cyberpunk Industrial + High-Level Calculus
   ───────────────────────────────────────────────── */

/* ─── DESIGN TOKENS ─── */
:root {
  --c-bg:        #0A0A0E;
  --c-bg2:       #0E0E14;
  --c-surface:   #22222A;
  --c-surface2:  #1A1A22;
  --c-border:    #2E2E3A;
  --c-lime:      #AFFE00;
  --c-lime-dim:  #7ABF00;
  --c-blue:      #00D1FF;
  --c-blue-dim:  #0094B8;
  --c-text:      #E8E8F0;
  --c-text2:     #9090A8;
  --c-win:       rgba(175, 254, 0, 0.08);
  --c-win-border:#AFFE00;
  --font-head:   'Inter', sans-serif;
  --font-mono:   'JetBrains Mono', monospace;
  --r-sm:        6px;
  --r-md:        12px;
  --r-lg:        20px;
  --shadow-lime: 0 0 30px rgba(175, 254, 0, 0.25);
  --shadow-blue: 0 0 30px rgba(0, 209, 255, 0.25);
  --transition:  0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-head);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection {
  background: rgba(175, 254, 0, 0.3);
  color: #fff;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--c-bg); }
::-webkit-scrollbar-thumb { background: var(--c-surface); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--c-lime-dim); }

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

/* ─── UTILITY ─── */
.hl-lime  { color: var(--c-lime); }
.hl-blue  { color: var(--c-blue); }

/* ─── BUTTONS ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  border-radius: var(--r-sm);
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 0.95rem;
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  white-space: nowrap;
}

.btn-primary {
  background: var(--c-lime);
  color: #0A0A0E;
  border-color: var(--c-lime);
}
.btn-primary:hover {
  background: transparent;
  color: var(--c-lime);
  box-shadow: var(--shadow-lime);
}

.btn-ghost {
  background: transparent;
  color: var(--c-text2);
  border-color: var(--c-border);
}
.btn-ghost:hover {
  color: var(--c-text);
  border-color: var(--c-text2);
}

.btn-outline {
  background: transparent;
  color: var(--c-lime);
  border-color: var(--c-lime);
}
.btn-outline:hover {
  background: var(--c-lime);
  color: #0A0A0E;
  box-shadow: var(--shadow-lime);
}

.btn-xl {
  padding: 18px 38px;
  font-size: 1.05rem;
}

.btn-nav {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  border-radius: var(--r-sm);
  font-weight: 700;
  font-size: 0.9rem;
  background: var(--c-lime);
  color: #0A0A0E;
  transition: var(--transition);
}
.btn-nav:hover {
  background: transparent;
  color: var(--c-lime);
  box-shadow: 0 0 16px rgba(175,254,0,0.3);
  outline: 2px solid var(--c-lime);
}

/* ─── NAV ─── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: background 0.4s, border-color 0.4s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(10, 10, 14, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--c-border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
}
.logo-neo    { font-weight: 900; color: var(--c-lime); }
.logo-calc   { font-weight: 900; color: var(--c-text); }
.logo-badge  {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  background: var(--c-surface);
  color: var(--c-blue);
  padding: 3px 8px;
  border-radius: 4px;
  border: 1px solid var(--c-blue-dim);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--c-text2);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--c-text); }

.nav-burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--c-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ─── HERO ─── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding: 120px 24px 0;
}

#heroCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.6;
}

.hero-grid-overlay {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(175,254,0,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(175,254,0,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 50%, black, transparent);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-radius: 999px;
  background: rgba(0, 209, 255, 0.08);
  border: 1px solid rgba(0, 209, 255, 0.25);
  font-size: 0.88rem;
  color: var(--c-blue);
  margin-bottom: 32px;
  font-family: var(--font-mono);
}

.badge-dot {
  width: 8px; height: 8px;
  background: var(--c-blue);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 0 0 rgba(0,209,255,0.5); }
  50% { opacity: 0.8; transform: scale(1.15); box-shadow: 0 0 0 6px rgba(0,209,255,0); }
}

.hero-title {
  font-size: clamp(3rem, 8vw, 7rem);
  font-weight: 900;
  line-height: 1.0;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
}

.title-line {
  display: block;
}

.title-accent {
  color: var(--c-lime);
  text-shadow: 0 0 60px rgba(175, 254, 0, 0.4), 0 0 120px rgba(175, 254, 0, 0.15);
}

.hero-sub {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--c-text2);
  max-width: 680px;
  margin: 0 auto 36px;
  line-height: 1.7;
}
.hero-sub strong {
  color: var(--c-text);
  font-weight: 800;
}

.hero-math {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  background: var(--c-surface2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 20px 32px;
  margin-bottom: 36px;
}

.math-morph {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  justify-content: center;
}

.math-code {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--c-blue);
  font-weight: 700;
}

.math-arrow {
  color: var(--c-text2);
  font-size: 1.2rem;
}

.math-result {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--c-lime);
  font-weight: 700;
  text-shadow: 0 0 20px rgba(175,254,0,0.5);
}

.math-label {
  font-size: 0.78rem;
  color: var(--c-text2);
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 48px;
}

.hero-video-placeholder {
  width: 100%;
  max-width: 680px;
  margin: 0 auto;
  aspect-ratio: 16/9;
  background: var(--c-surface2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  overflow: hidden;
  position: relative;
  cursor: pointer;
}

.video-frame {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  background:
    radial-gradient(ellipse 60% 50% at 50% 50%, rgba(175,254,0,0.05), transparent);
}

.video-icon {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: rgba(175,254,0,0.15);
  border: 2px solid rgba(175,254,0,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  color: var(--c-lime);
  transition: var(--transition);
}

.hero-video-placeholder:hover .video-icon {
  background: rgba(175,254,0,0.25);
  transform: scale(1.08);
  box-shadow: var(--shadow-lime);
}

.video-label {
  font-weight: 700;
  font-size: 1rem;
  color: var(--c-text);
}

.video-sub {
  font-size: 0.82rem;
  color: var(--c-text2);
  font-family: var(--font-mono);
}

/* ─── HERO STATS ─── */
.hero-stats {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
  background: rgba(14,14,20,0.9);
  backdrop-filter: blur(16px);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  margin: 0 24px;
  padding: 24px 40px;
  width: calc(100% - 48px);
  max-width: 900px;
  margin-top: 48px;
}

.stat-item {
  flex: 1;
  min-width: 120px;
  text-align: center;
  padding: 8px 16px;
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 900;
  font-family: var(--font-mono);
  color: var(--c-lime);
  line-height: 1;
  margin-bottom: 6px;
}

.stat-unit {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--c-lime-dim);
  margin-left: 2px;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--c-text2);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--c-border);
  flex-shrink: 0;
}

/* ─── SECTION SHARED ─── */
.section {
  padding: 120px 0;
  position: relative;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--c-lime);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.section-sub {
  font-size: 1.1rem;
  color: var(--c-text2);
  max-width: 640px;
  line-height: 1.7;
  margin-bottom: 60px;
}

/* ─── MOAT / COMPARISON TABLE ─── */
.moat {
  background: var(--c-bg);
}

.moat::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-lime), transparent);
  opacity: 0.4;
}

.table-wrapper {
  overflow-x: auto;
  border-radius: var(--r-lg);
  border: 1px solid var(--c-border);
  margin-bottom: 32px;
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
  min-width: 700px;
}

.compare-table thead tr {
  background: var(--c-surface);
}

.compare-table th {
  padding: 20px 20px;
  text-align: center;
  font-weight: 800;
  border-bottom: 1px solid var(--c-border);
  border-right: 1px solid var(--c-border);
}
.compare-table th:last-child { border-right: none; }

.compare-table th.col-feature {
  text-align: left;
  color: var(--c-text2);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.compare-table th.col-numos,
.compare-table th.winner {
  background: var(--c-win);
  border-left: 2px solid var(--c-lime);
  border-right: 2px solid var(--c-lime);
}

.th-logo {
  font-size: 0.95rem;
  font-weight: 900;
  color: var(--c-text);
  margin-bottom: 4px;
}

.th-price {
  font-family: var(--font-mono);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--c-text2);
}

.price-lime { color: var(--c-lime) !important; }

.th-badge {
  font-size: 0.65rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--c-lime);
  background: rgba(175,254,0,0.1);
  padding: 2px 8px;
  border-radius: 4px;
  display: inline-block;
  margin-top: 6px;
  letter-spacing: 0.08em;
}

.compare-table tbody tr {
  border-bottom: 1px solid var(--c-border);
  transition: background var(--transition);
}

.compare-table tbody tr:last-child { border-bottom: none; }

.compare-table tbody tr:hover {
  background: rgba(255,255,255,0.02);
}

.compare-table td {
  padding: 16px 20px;
  text-align: center;
  border-right: 1px solid var(--c-border);
  color: var(--c-text2);
}
.compare-table td:last-child { border-right: none; }

.compare-table td:first-child {
  text-align: left;
  font-weight: 600;
  color: var(--c-text);
  font-size: 0.88rem;
}

.compare-table td.winner {
  background: var(--c-win);
  border-left: 2px solid var(--c-lime);
  border-right: 2px solid var(--c-lime);
  color: var(--c-text);
  font-weight: 700;
  font-size: 0.88rem;
}

.check     { color: var(--c-lime); font-size: 1rem; margin-right: 4px; }
.check.dim { color: var(--c-text2); }
.cross     { color: #FF4060; font-size: 1rem; }

.moat-callout {
  background: rgba(175,254,0,0.06);
  border: 1px solid rgba(175,254,0,0.2);
  border-radius: var(--r-md);
  padding: 20px 28px;
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 0.95rem;
  line-height: 1.6;
}

.callout-icon { font-size: 1.4rem; flex-shrink: 0; }
.moat-callout strong { color: var(--c-lime); }

/* ─── TECH STACK ─── */
.tech {
  background: var(--c-bg2);
  position: relative;
  overflow: hidden;
}

.tech::after {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(0,209,255,0.05) 0%, transparent 70%);
  pointer-events: none;
}

/* Architecture Diagram */
.arch-diagram {
  background: var(--c-surface2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: 40px;
  margin-bottom: 60px;
}

.arch-layer {
  margin-bottom: 8px;
}

.arch-label {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--c-text2);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 12px;
}

.arch-tag {
  display: inline-block;
  padding: 2px 8px;
  background: rgba(0,209,255,0.1);
  color: var(--c-blue);
  border-radius: 4px;
  font-size: 0.68rem;
  margin-left: 8px;
  border: 1px solid rgba(0,209,255,0.2);
}

.arch-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  padding: 8px 14px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--c-text2);
  font-weight: 500;
  transition: var(--transition);
}

.chip:hover {
  border-color: var(--c-text2);
  color: var(--c-text);
}

.chip-highlight {
  background: rgba(175,254,0,0.06);
  border-color: rgba(175,254,0,0.25);
  color: var(--c-lime);
}

.chip-highlight:hover {
  background: rgba(175,254,0,0.1);
  border-color: var(--c-lime);
}

.chip-more {
  background: transparent;
  border-style: dashed;
  color: var(--c-text2);
  cursor: default;
}

.arch-arrow {
  text-align: center;
  color: var(--c-border);
  font-size: 1.2rem;
  padding: 6px 0;
  line-height: 1;
}

/* Memory Bars */
.mem-section {
  margin-bottom: 60px;
}

.mem-title {
  font-size: 1.5rem;
  font-weight: 900;
  margin-bottom: 28px;
  letter-spacing: -0.01em;
}

.mem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.mem-card {
  background: var(--c-surface2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 28px;
  transition: border-color var(--transition);
}

.mem-card:hover {
  border-color: var(--c-lime-dim);
}

.mem-icon {
  font-size: 1.8rem;
  margin-bottom: 12px;
}

.mem-name {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 4px;
}

.mem-size {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--c-text2);
  margin-bottom: 16px;
}

.mem-bar-wrap {
  background: rgba(255,255,255,0.05);
  border-radius: 4px;
  height: 24px;
  overflow: hidden;
  margin-bottom: 12px;
}

.mem-bar {
  height: 100%;
  display: flex;
  align-items: center;
  padding: 0 10px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  width: var(--pct);
  min-width: fit-content;
}

.mem-bar-used  { background: linear-gradient(90deg, #AFFE00, #7ABF00); color: #0A0A0E; }
.mem-bar-psram { background: linear-gradient(90deg, #00D1FF, #0094B8); color: #0A0A0E; }
.mem-bar-flash { background: linear-gradient(90deg, rgba(175,254,0,0.7), rgba(0,209,255,0.7)); color: #0A0A0E; }

.mem-detail {
  font-size: 0.82rem;
  color: var(--c-text2);
  font-family: var(--font-mono);
}

/* Tech Card Grid */
.tech-stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.tech-card {
  background: var(--c-surface2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 28px;
  transition: var(--transition);
}

.tech-card:hover {
  border-color: var(--c-lime-dim);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
}

.tc-icon {
  font-size: 1.8rem;
  margin-bottom: 14px;
}

.tech-card h4 {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 10px;
}

.tech-card p {
  font-size: 0.9rem;
  color: var(--c-text2);
  line-height: 1.65;
}

/* ─── FEATURES ─── */
.features {
  background: var(--c-bg);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.feat-card {
  background: var(--c-surface2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.feat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--c-lime), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.feat-card:hover {
  border-color: var(--c-lime-dim);
  transform: translateY(-3px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.5);
}

.feat-card:hover::before {
  opacity: 1;
}

.feat-large {
  grid-column: span 2;
}

.feat-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--c-lime);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.feat-card h3 {
  font-size: 1.35rem;
  font-weight: 900;
  margin-bottom: 16px;
}

.feat-math {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--r-sm);
  padding: 16px;
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.feat-eq {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--c-lime);
  font-weight: 600;
}

.feat-card p {
  font-size: 0.9rem;
  color: var(--c-text2);
  line-height: 1.65;
}

/* ─── HARDWARE ─── */
.hardware {
  background: var(--c-bg2);
  position: relative;
}

.hardware::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--c-blue), transparent);
  opacity: 0.4;
}

.hw-status-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.hw-card {
  background: var(--c-surface2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-lg);
  padding: 32px;
  position: relative;
  transition: var(--transition);
}

.hw-card:hover {
  transform: translateY(-2px);
}

.hw-active   { border-color: var(--c-lime-dim); }
.hw-inprogress { border-color: rgba(0,209,255,0.3); }
.hw-planned  { border-color: var(--c-border); }

.hw-status-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  position: absolute;
  top: 32px; right: 32px;
}

.hw-dot-active {
  background: var(--c-lime);
  box-shadow: 0 0 0 4px rgba(175,254,0,0.2);
  animation: pulse-dot 2s infinite;
}

.hw-dot-progress {
  background: var(--c-blue);
  box-shadow: 0 0 0 4px rgba(0,209,255,0.2);
  animation: pulse-dot 3s infinite;
}

.hw-dot-planned {
  background: var(--c-border);
}

.hw-phase {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--c-text2);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.hw-active .hw-phase   { color: var(--c-lime); }
.hw-inprogress .hw-phase { color: var(--c-blue); }

.hw-card h3 {
  font-size: 1.2rem;
  font-weight: 900;
  margin-bottom: 12px;
}

.hw-card p {
  font-size: 0.88rem;
  color: var(--c-text2);
  line-height: 1.65;
  margin-bottom: 20px;
}

.hw-specs {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hw-spec {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.82rem;
  font-family: var(--font-mono);
}

.spec-k {
  color: var(--c-text2);
  min-width: 70px;
  font-weight: 600;
}
.spec-v {
  color: var(--c-text);
  font-weight: 500;
}

.hw-callout {
  background: rgba(0, 209, 255, 0.05);
  border: 1px solid rgba(0, 209, 255, 0.2);
  border-radius: var(--r-md);
  padding: 24px 28px;
}

.hc-inner {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.hc-icon { font-size: 1.4rem; flex-shrink: 0; margin-top: 2px; }

.hc-text {
  font-size: 0.92rem;
  line-height: 1.65;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.hc-text strong { color: var(--c-blue); }
.hc-text span   { color: var(--c-text2); }
.hc-text code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: rgba(0,209,255,0.08);
  padding: 1px 6px;
  border-radius: 3px;
  color: var(--c-blue);
}

/* ─── ROADMAP ─── */
.roadmap {
  background: var(--c-bg);
  overflow: hidden;
  position: relative;
}

.roadmap::after {
  content: '';
  position: absolute;
  bottom: -100px; left: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(175,254,0,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.timeline {
  position: relative;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 10px;
  top: 20px;
  bottom: 20px;
  width: 2px;
  background: linear-gradient(
    to bottom,
    var(--c-lime) 0%,
    var(--c-lime) 55%,
    rgba(175,254,0,0.3) 60%,
    var(--c-border) 70%,
    transparent 100%
  );
}

.tl-item {
  position: relative;
  margin-bottom: 8px;
  display: flex;
  align-items: flex-start;
  gap: 24px;
}

.tl-dot {
  position: absolute;
  left: -27px;
  top: 20px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  border: 2px solid;
  flex-shrink: 0;
  z-index: 1;
}

.tl-dot-done {
  background: var(--c-lime);
  border-color: var(--c-lime);
  box-shadow: 0 0 10px rgba(175,254,0,0.4);
}

.tl-dot-active {
  background: var(--c-lime);
  border-color: var(--c-lime);
  box-shadow: 0 0 0 6px rgba(175,254,0,0.15);
  animation: pulse-dot 2s infinite;
}

.tl-dot-planned {
  background: transparent;
  border-color: var(--c-border);
}

.tl-line {
  display: none;
}

.tl-card {
  flex: 1;
  background: var(--c-surface2);
  border: 1px solid var(--c-border);
  border-radius: var(--r-md);
  padding: 24px 28px;
  margin-bottom: 16px;
  transition: var(--transition);
}

.tl-card:hover {
  border-color: var(--c-lime-dim);
}

.tl-card-active {
  border-color: var(--c-lime) !important;
  background: rgba(175,254,0,0.04);
}

.tl-done .tl-card { opacity: 1; }
.tl-planned .tl-card { opacity: 0.6; }
.tl-planned .tl-card:hover { opacity: 0.9; }

.tl-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--c-lime);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}

.tl-planned .tl-date { color: var(--c-text2); }

.tl-card h4 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.tl-card p {
  font-size: 0.88rem;
  color: var(--c-text2);
  line-height: 1.6;
}

/* ─── CTA ─── */
.cta {
  position: relative;
  padding: 160px 0;
  overflow: hidden;
  background: var(--c-bg2);
}

#ctaCanvas {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
  opacity: 0.4;
}

.cta-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
}

.cta-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}

.cta-sub {
  font-size: 1.05rem;
  color: var(--c-text2);
  line-height: 1.75;
  margin-bottom: 40px;
}

.cta-sub strong { color: var(--c-text); }

.cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.cta-meta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--c-text2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px;
}

.meta-dot { color: var(--c-border); }

/* ─── FOOTER ─── */
.footer {
  background: var(--c-surface);
  border-top: 1px solid var(--c-border);
  padding: 48px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-sub {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-text2);
}

.footer-links {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
}

.footer-links a {
  font-size: 0.88rem;
  color: var(--c-text2);
  font-weight: 600;
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--c-lime); }

.footer-copy {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--c-text2);
  width: 100%;
}

/* ─── SCROLL FADE IN ─── */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── RESPONSIVE ─── */
@media (max-width: 900px) {
  .features-grid {
    grid-template-columns: 1fr 1fr;
  }
  .feat-large {
    grid-column: span 2;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: var(--c-bg2);
    border-bottom: 1px solid var(--c-border);
    padding: 20px 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }
  .nav-links.open { display: flex; }
  .nav-burger { display: flex; }
}

@media (max-width: 640px) {
  .hero { padding: 100px 16px 0; }
  .hero-stats { padding: 20px 16px; gap: 0; }
  .stat-divider { display: none; }
  .stat-item { min-width: 80px; padding: 6px 8px; }
  .stat-number { font-size: 1.7rem; }
  .section { padding: 80px 0; }
  .features-grid { grid-template-columns: 1fr; }
  .feat-large { grid-column: span 1; }
  .tl-card { padding: 20px; }
  .timeline { padding-left: 24px; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
  .hero-math { padding: 16px 20px; }
  .math-code, .math-result { font-size: 0.95rem; }
  .table-wrapper { border-radius: var(--r-md); }
  .compare-table th, .compare-table td { padding: 12px 14px; }
  .hero-video-placeholder { border-radius: var(--r-md); }
  .hw-status-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .hero-badge { font-size: 0.78rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; max-width: 320px; }
  .cta-actions { flex-direction: column; align-items: center; }
  .arch-diagram { padding: 24px; }
}

/* ─── GLITCH ANIMATION ─── */
@keyframes glitch {
  0%, 90%, 100% { clip-path: none; transform: none; }
  92% { clip-path: polygon(0 15%, 100% 15%, 100% 30%, 0 30%); transform: translateX(-4px); }
  94% { clip-path: polygon(0 60%, 100% 60%, 100% 80%, 0 80%); transform: translateX(3px); }
  96% { clip-path: polygon(0 40%, 100% 40%, 100% 55%, 0 55%); transform: translateX(-2px); }
}

.glitch-text {
  position: relative;
}

.glitch-text::before,
.glitch-text::after {
  content: attr(data-text);
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
}

.glitch-text::before {
  color: var(--c-blue);
  animation: glitch 6s infinite;
  animation-delay: 0.1s;
  opacity: 0.5;
}

.glitch-text::after {
  color: var(--c-lime);
  animation: glitch 6s infinite;
  animation-delay: 0.3s;
  opacity: 0.3;
}

/* ─── NEON GLOW ─── */
.glow-lime {
  text-shadow: 0 0 20px rgba(175,254,0,0.5), 0 0 60px rgba(175,254,0,0.2);
}

.glow-blue {
  text-shadow: 0 0 20px rgba(0,209,255,0.5), 0 0 60px rgba(0,209,255,0.2);
}