/* ==========================================================================
   HELIOPAUSE VENTURES LLP — Enterprise IT, Software & AI Consulting
   Design System & Cybernetic Stylesheet
   ========================================================================== */

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

/* --- Tokens & Variables --- */
:root {
  --bg-void: #030712;
  --bg-deep: #050a18;
  --bg-surface: #0a1329;
  --bg-surface-elevated: #0f1c3d;
  --bg-card: rgba(10, 20, 45, 0.65);
  --bg-card-hover: rgba(15, 28, 61, 0.85);

  --text-main: #f8fafc;
  --text-dim: #cbd5e1;
  --text-muted: #64748b;
  --text-dimmer: #475569;

  /* --- Traditional Neon Bright Blue System --- */
  --neon-blue: #0066ff;
  --neon-blue-vivid: #1a75ff;
  --neon-blue-bright: #388bfd;
  --neon-blue-glow: rgba(0, 102, 255, 0.5);
  --neon-blue-glow-lg: 0 0 25px rgba(26, 117, 255, 0.65), 0 0 50px rgba(0, 102, 255, 0.35);
  --neon-blue-subtle: rgba(0, 102, 255, 0.09);

  /* Aliases mapped to neon bright blue */
  --cyan: #1a75ff;
  --cyan-glow: rgba(26, 117, 255, 0.48);
  --cyan-subtle: rgba(0, 102, 255, 0.09);

  --sapphire: #0052cc;
  --sapphire-glow: rgba(0, 82, 204, 0.4);

  --violet: #7c3aed;
  --violet-glow: rgba(124, 58, 237, 0.35);

  --emerald: #10b981;
  --amber: #f59e0b;

  --line: rgba(26, 117, 255, 0.18);
  --line-soft: rgba(255, 255, 255, 0.08);
  --line-bright: rgba(26, 117, 255, 0.48);

  --font-sans: 'Space Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Outfit', 'Space Grotesk', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --pad: clamp(20px, 4vw, 64px);
  --nav-h: 84px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-pill: 9999px;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: auto;
  background-color: var(--bg-void);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
}

body {
  background: var(--bg-void);
  color: var(--text-main);
  font-weight: 300;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
}

body.is-locked {
  overflow: hidden;
  height: 100vh;
}

::selection {
  background: var(--cyan);
  color: var(--bg-void);
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

button, input, textarea, select {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  outline: none;
}

/* --- Fixed Backdrop Layers --- */
#gl {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  z-index: 0;
  background: var(--bg-void);
  pointer-events: none;
}

#vignette {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: radial-gradient(120% 90% at 50% 45%, transparent 35%, rgba(2, 5, 13, 0.78) 100%);
}

#cyber-grid-overlay {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.15;
  background-image:
    linear-gradient(rgba(26, 117, 255, 0.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 117, 255, 0.1) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(circle at 50% 50%, black 20%, transparent 80%);
  -webkit-mask-image: radial-gradient(circle at 50% 50%, black 20%, transparent 80%);
}

.page {
  position: relative;
  z-index: 10;
}

/* --- Typography Utilities --- */
.mono {
  font-family: var(--font-mono);
}

.display {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.05;
  text-transform: uppercase;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cyan);
  text-shadow: 0 0 16px var(--cyan-glow);
}

.eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: pulse-beacon 2s infinite ease-in-out;
}

@keyframes pulse-beacon {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.5; }
}

.h-hero {
  font-size: clamp(34px, 4.4vw, 68px);
}

.h-sec {
  font-size: clamp(28px, 3.5vw, 52px);
}

.h-sub {
  font-size: clamp(20px, 2.2vw, 32px);
  font-weight: 500;
}

.body-lg {
  font-size: clamp(16px, 1.2vw, 19px);
  line-height: 1.7;
  color: var(--text-dim);
}

.body {
  font-size: 15px;
  line-height: 1.65;
  color: var(--text-muted);
}

.body-sm {
  font-size: 13px;
  line-height: 1.55;
  color: var(--text-muted);
}

/* --- Reveal & Animation Utility Classes --- */
[data-rv] {
  opacity: 0;
  will-change: transform, opacity;
}

[data-rv="up"] {
  transform: translate3d(0, 30px, 0);
}

[data-rv="fade"] {
  transform: none;
}

[data-rv].rv-in {
  opacity: 1;
  transform: none;
  transition: opacity 0.85s var(--ease-out), transform 1s var(--ease-out);
}

.mask-line {
  display: block;
  overflow: hidden;
}

.mask-line > span {
  display: block;
  transform: translate3d(0, 115%, 0);
  transition: transform 1s var(--ease-out);
  will-change: transform;
}

.rv-in .mask-line > span,
.mask-line.rv-in > span {
  transform: none;
}

/* --- Preloader --- */
#pre {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: var(--bg-void);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.8s var(--ease), visibility 0.8s;
}

#pre.done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.pre-in {
  width: min(440px, 80vw);
  text-align: center;
}

.pre-logo {
  margin: 0 auto 28px;
  width: 56px;
  height: 56px;
  position: relative;
}

.pre-logo svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 15px var(--cyan-glow));
  animation: spin-slow 20s linear infinite;
}

@keyframes spin-slow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.pre-title {
  font-family: var(--font-display);
  font-size: 14px;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--text-main);
  margin-bottom: 22px;
}

.pre-bar {
  position: relative;
  height: 2px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 2px;
  overflow: hidden;
}

.pre-bar i {
  position: absolute;
  inset: 0 100% 0 0;
  background: linear-gradient(90deg, var(--sapphire), var(--cyan));
  box-shadow: 0 0 12px var(--cyan);
  transition: right 0.25s linear;
}

.pre-meta {
  display: flex;
  justify-content: space-between;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.pre-meta b {
  font-weight: 500;
  color: var(--cyan);
}

/* --- Custom Cursor --- */
.cur-dot {
  position: fixed;
  top: 0;
  left: 0;
  width: 8px;
  height: 8px;
  background: var(--cyan);
  border-radius: 50%;
  pointer-events: none;
  z-index: 1000;
  transform: translate(-50%, -50%);
  transition: transform 0.05s ease, opacity 0.3s;
  box-shadow: 0 0 10px var(--cyan);
}

.cur-ring {
  position: fixed;
  top: 0;
  left: 0;
  width: 32px;
  height: 32px;
  border: 1px solid rgba(26, 117, 255, 0.45);
  border-radius: 50%;
  pointer-events: none;
  z-index: 999;
  transform: translate(-50%, -50%);
  transition: width 0.3s var(--ease), height 0.3s var(--ease), border-color 0.3s, background-color 0.3s;
}

body.hovering .cur-ring {
  width: 54px;
  height: 54px;
  border-color: var(--cyan);
  background: rgba(26, 117, 255, 0.08);
  backdrop-filter: blur(2px);
}

@media (pointer: coarse) {
  .cur-dot, .cur-ring { display: none !important; }
}

/* --- Navigation Header --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--nav-h);
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--pad);
  transition: transform 0.45s var(--ease), background-color 0.4s;
}

.nav::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: rgba(3, 7, 18, 0.75);
  backdrop-filter: blur(16px) saturate(1.2);
  -webkit-backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid transparent;
  opacity: 0;
  transition: opacity 0.4s ease, border-color 0.4s;
}

.nav.stuck::before {
  opacity: 1;
  border-color: var(--line);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
  flex: 0 0 auto;
}

.brand-icon {
  width: 36px;
  height: 36px;
  position: relative;
}

.brand-icon svg {
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 0 10px var(--cyan-glow));
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  gap: 3px;
}

.brand-title {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.16em;
  color: var(--text-main);
}

.brand-subtitle {
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: 0.28em;
  color: var(--cyan);
  text-transform: uppercase;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.2vw, 36px);
}

.nav-link {
  position: relative;
  font-family: var(--font-sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-dim);
  padding: 6px 0;
  overflow: hidden;
}

.nav-link span {
  display: inline-block;
  transition: transform 0.3s var(--ease), color 0.3s;
}

.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s var(--ease);
}

.nav-link:hover {
  color: var(--text-main);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-link.active {
  color: var(--cyan);
  font-weight: 600;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: var(--cyan-subtle);
  border: 1px solid var(--line-bright);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
  transition: all 0.3s var(--ease);
}

.nav-cta:hover {
  background: var(--cyan);
  color: var(--bg-void);
  box-shadow: 0 0 20px var(--cyan-glow);
}

.nav-burger {
  display: none;
  width: 28px;
  height: 20px;
  position: relative;
  cursor: pointer;
  z-index: 60;
}

.nav-burger span {
  position: absolute;
  right: 0;
  height: 2px;
  background: var(--text-main);
  transition: all 0.3s var(--ease);
}

.nav-burger span:nth-child(1) {
  top: 4px;
  width: 28px;
}

.nav-burger span:nth-child(2) {
  top: 14px;
  width: 18px;
}

.nav-burger.open span:nth-child(1) {
  top: 9px;
  transform: rotate(45deg);
  width: 26px;
}

.nav-burger.open span:nth-child(2) {
  top: 9px;
  transform: rotate(-45deg);
  width: 26px;
}

/* Mobile Drawer */
.mobile-drawer {
  position: fixed;
  inset: 0;
  background: rgba(3, 7, 18, 0.96);
  backdrop-filter: blur(24px);
  z-index: 45;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--pad);
  transform: translate3d(100%, 0, 0);
  transition: transform 0.5s var(--ease);
  pointer-events: none;
}

.mobile-drawer.open {
  transform: translate3d(0, 0, 0);
  pointer-events: all;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.mobile-nav-link {
  font-family: var(--font-display);
  font-size: clamp(24px, 6vw, 36px);
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-dim);
  display: flex;
  align-items: baseline;
  gap: 16px;
}

.mobile-nav-link span.num {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--cyan);
}

.mobile-nav-link.active,
.mobile-nav-link:hover {
  color: var(--cyan);
}

/* --- Buttons & Interactive Elements --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.35s var(--ease);
}

.btn-primary {
  background: var(--cyan);
  color: var(--bg-void);
  font-weight: 600;
  box-shadow: 0 0 24px var(--cyan-glow);
}

.btn-primary:hover {
  background: #fff;
  box-shadow: 0 0 35px rgba(255, 255, 255, 0.6);
  transform: translateY(-2px);
}

.btn-secondary {
  background: rgba(10, 20, 45, 0.7);
  border: 1px solid var(--line-bright);
  color: var(--text-main);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  border-color: var(--cyan);
  background: rgba(26, 117, 255, 0.12);
  color: var(--cyan);
  transform: translateY(-2px);
}

.btn-icon {
  width: 18px;
  height: 18px;
  transition: transform 0.3s ease;
}

.btn:hover .btn-icon {
  transform: translateX(4px);
}

/* --- Hero Section (Home) --- */
.hero {
  position: relative;
  min-height: 100vh;
  padding: 0 var(--pad);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.hero-top {
  padding-top: calc(var(--nav-h) + clamp(20px, 4vh, 50px));
  max-width: min(720px, 60vw);
  position: relative;
  z-index: 2;
}

.hero-top .eyebrow {
  margin-bottom: 24px;
}

.hero h1 {
  margin-bottom: 22px;
}

.hero-sub {
  max-width: 540px;
  margin-bottom: 32px;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.8);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.hero-spacer {
  flex: 1 1 auto;
  min-height: clamp(80px, 16vh, 220px);
}

.hero-foot {
  padding-bottom: clamp(24px, 4vh, 48px);
  position: relative;
  z-index: 2;
}

.hero-cue {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
  margin-bottom: 18px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.hero-cue .track {
  width: 60px;
  height: 1px;
  background: var(--line);
  position: relative;
  overflow: hidden;
}

.hero-cue .track i {
  position: absolute;
  inset: 0;
  background: var(--cyan);
  transform-origin: left;
  animation: cue-pulse 2.6s var(--ease-in-out) infinite;
}

@keyframes cue-pulse {
  0% { transform: scaleX(0); }
  45% { transform: scaleX(1); }
  100% { transform: scaleX(1) translateX(100%); }
}

/* Chapter Chips (Kage ground reference adapted for Tech) */
.chapters {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(14px, 2vw, 32px);
  border-top: 1px solid var(--line-soft);
  padding-top: 22px;
}

.chip {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: var(--radius-sm);
  background: transparent;
  border: 1px solid transparent;
  transition: all 0.35s var(--ease);
}

.chip:hover {
  background: rgba(26, 117, 255, 0.04);
  border-color: var(--line);
}

.chip .num {
  font-family: var(--font-mono);
  font-size: clamp(22px, 2vw, 30px);
  font-weight: 400;
  line-height: 1;
  color: var(--text-muted);
  transition: color 0.35s, transform 0.35s var(--ease-out);
}

.chip .tx {
  min-width: 0;
  padding-top: 2px;
}

.chip b {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 4px;
  transition: color 0.35s;
}

.chip p {
  margin: 0;
  font-size: 12px;
  line-height: 1.5;
  color: var(--text-muted);
  transition: color 0.35s;
}

.chip:hover .num, .chip.active .num {
  color: var(--cyan);
  transform: translateY(-2px);
}

.chip:hover b, .chip.active b {
  color: #fff;
}

.chip:hover p, .chip.active p {
  color: var(--text-dim);
}

/* Floating Telemetry Peek Box (Tech replacement for Sanmon peek) */
.telemetry-peek {
  position: absolute;
  z-index: 2;
  right: clamp(40px, 8vw, 140px);
  top: clamp(120px, 22vh, 220px);
  width: clamp(220px, 20vw, 320px);
  background: rgba(5, 10, 24, 0.75);
  border: 1px solid var(--line-bright);
  backdrop-filter: blur(14px);
  border-radius: var(--radius-md);
  padding: 18px;
  box-shadow: 0 20px 45px rgba(0, 0, 0, 0.7), 0 0 25px rgba(26, 117, 255, 0.1);
  transition: transform 0.6s var(--ease-out), border-color 0.4s;
}

.telemetry-peek:hover {
  transform: translateY(-6px);
  border-color: var(--cyan);
}

.telemetry-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 10px;
  margin-bottom: 12px;
}

.telemetry-title {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.telemetry-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--emerald);
}

.telemetry-status span {
  width: 6px;
  height: 6px;
  background: var(--emerald);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--emerald);
}

.telemetry-data {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.telemetry-item b {
  display: block;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--text-main);
  font-weight: 500;
}

.telemetry-item span {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
}

.telemetry-graph {
  margin-top: 14px;
  height: 38px;
  width: 100%;
}

@media (max-width: 960px) {
  .telemetry-peek { display: none; }
}

/* --- Section Containers --- */
.sec {
  position: relative;
  padding: clamp(90px, 14vh, 180px) var(--pad);
}

.sec::before {
  content: '';
  position: absolute;
  inset: -15% 0;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(85% 55% at 50% 50%, rgba(5, 12, 30, 0.85) 0%, rgba(3, 7, 18, 0.4) 65%, transparent 100%);
  mask-image: linear-gradient(transparent, #000 35%, #000 65%, transparent);
  -webkit-mask-image: linear-gradient(transparent, #000 35%, #000 65%, transparent);
}

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

.sec-head .k {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--cyan);
}

.sec-head .rule {
  flex: 1 1 auto;
  height: 1px;
  background: var(--line-soft);
}

.sec-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: center;
}

.sec-grid-reverse {
  grid-template-columns: 1fr 1.1fr;
}

/* Feature Cards & Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: clamp(20px, 2.5vw, 36px);
  margin-top: 48px;
}

.card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: clamp(24px, 3vw, 40px);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: all 0.4s var(--ease);
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--line-bright);
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6), 0 0 30px rgba(26, 117, 255, 0.08);
}

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

.card-icon {
  width: 48px;
  height: 48px;
  background: rgba(26, 117, 255, 0.08);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  color: var(--cyan);
}

.card-icon svg {
  width: 24px;
  height: 24px;
}

.card-title {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-main);
}

.card-body {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.65;
  margin-bottom: 20px;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 10px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  color: var(--text-dim);
}

/* Metrics & Stats Ribbon */
.metrics-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(16px, 2.5vw, 36px);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  padding: clamp(36px, 5vh, 60px) 0;
  margin: 60px 0;
}

.metric-item {
  text-align: left;
}

.metric-val {
  font-family: var(--font-display);
  font-size: clamp(36px, 4.5vw, 64px);
  font-weight: 700;
  line-height: 1;
  color: var(--cyan);
  text-shadow: 0 0 25px var(--cyan-glow);
  margin-bottom: 8px;
}

.metric-lbl {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.metric-desc {
  font-size: 13px;
  color: var(--text-muted);
  max-width: 28ch;
}

/* Tech Radar / Ecosystem Matrix */
.radar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin-top: 36px;
}

.radar-cell {
  background: rgba(10, 20, 45, 0.45);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
  transition: all 0.3s;
}

.radar-cell:hover {
  border-color: var(--cyan);
  background: rgba(26, 117, 255, 0.08);
  transform: translateY(-3px);
}

.radar-name {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-main);
  margin-bottom: 4px;
}

.radar-category {
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--cyan);
}

/* --- Inner Page Kinetic Hero Headers & 3D Stage --- */
.inner-hero {
  min-height: 75vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--nav-h) + clamp(24px, 5vh, 50px));
  padding-bottom: clamp(48px, 7vh, 84px);
  padding-left: var(--pad);
  padding-right: var(--pad);
  position: relative;
  z-index: 2;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.inner-hero-container {
  max-width: 1440px;
  width: 100%;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}

@media (max-width: 960px) {
  .inner-hero-container {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

.inner-hero-content {
  position: relative;
  z-index: 3;
}

.hud-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 14px;
  background: rgba(10, 20, 45, 0.7);
  border: 1px solid var(--line-bright);
  border-radius: var(--radius-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--neon-blue-bright);
  margin-bottom: 18px;
  box-shadow: 0 0 16px var(--neon-blue-subtle);
}

.hud-pulse-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--neon-blue-bright);
  box-shadow: 0 0 8px var(--neon-blue-bright);
  animation: pulseDot 2s infinite ease-in-out;
}

@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.75); }
}

.neon-text {
  color: #ffffff;
  text-shadow: 0 0 20px var(--neon-blue-glow), 0 0 40px var(--neon-blue-glow);
  background: linear-gradient(135deg, #ffffff 40%, var(--neon-blue-bright) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.hero-action-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(15, 28, 61, 0.65);
  border: 1px solid var(--line);
  border-radius: var(--radius-pill);
  color: var(--text-dim);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: all 0.25s var(--ease);
  cursor: pointer;
}

.hero-action-chip:hover {
  background: rgba(26, 117, 255, 0.15);
  border-color: var(--neon-blue-bright);
  color: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 4px 16px var(--neon-blue-glow);
}

.hero-stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--line-soft);
}

@media (max-width: 600px) {
  .hero-stats-row {
    grid-template-columns: 1fr;
  }
}

.hero-stat-card {
  background: rgba(10, 20, 45, 0.5);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  transition: border-color 0.25s, transform 0.25s;
}

.hero-stat-card:hover {
  border-color: var(--neon-blue-bright);
  transform: translateY(-2px);
  background: rgba(15, 28, 61, 0.7);
}

.hero-stat-val {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.1;
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-stat-val .stat-accent {
  color: var(--neon-blue-bright);
  font-size: 0.75em;
}

.hero-stat-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 4px;
}

/* --- Right 3D Visual Viewport Area (Unobstructed 3D Element) --- */
.inner-hero-visual {
  min-height: 480px;
  pointer-events: none;
  position: relative;
  width: 100%;
}

@media (max-width: 960px) {
  .inner-hero-visual {
    min-height: 300px;
  }
}

/* --- Interactive Accordion (FAQ, Practices) --- */
.accordion {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 36px;
}

.accordion-item {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: border-color 0.3s;
}

.accordion-item.active {
  border-color: var(--cyan);
}

.accordion-header {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  background: transparent;
  width: 100%;
  text-align: left;
}

.accordion-header h3 {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  color: var(--text-main);
}

.accordion-icon {
  width: 20px;
  height: 20px;
  position: relative;
  transition: transform 0.3s var(--ease);
}

.accordion-icon::before,
.accordion-icon::after {
  content: '';
  position: absolute;
  background: var(--cyan);
  transition: transform 0.3s;
}

.accordion-icon::before {
  top: 9px;
  left: 2px;
  width: 16px;
  height: 2px;
}

.accordion-icon::after {
  top: 2px;
  left: 9px;
  width: 2px;
  height: 16px;
}

.accordion-item.active .accordion-icon {
  transform: rotate(45deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--ease), padding 0.3s;
  padding: 0 24px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
}

.accordion-item.active .accordion-body {
  max-height: 400px;
  padding-bottom: 24px;
}

/* --- Forms & Project Estimator --- */
.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.form-input, .form-textarea, .form-select {
  width: 100%;
  background: rgba(10, 20, 45, 0.7);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 14px 18px;
  color: var(--text-main);
  font-size: 15px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.form-input:focus, .form-textarea:focus, .form-select:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 15px var(--cyan-glow);
}

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

.checkbox-group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 12px;
  margin-top: 10px;
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: rgba(10, 20, 45, 0.4);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.25s;
}

.checkbox-item input {
  accent-color: var(--cyan);
  width: 16px;
  height: 16px;
}

.checkbox-item:hover {
  border-color: var(--cyan);
  background: rgba(26, 117, 255, 0.05);
}

/* --- Footer --- */
.footer {
  position: relative;
  z-index: 10;
  border-top: 1px solid var(--line-soft);
  padding: clamp(60px, 10vh, 100px) var(--pad) clamp(30px, 5vh, 48px);
  background: rgba(3, 7, 18, 0.95);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: clamp(32px, 4vw, 64px);
  margin-bottom: 60px;
}

.footer-brand b {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 0.15em;
  color: var(--text-main);
  display: block;
  margin-bottom: 12px;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
  max-width: 32ch;
  margin-bottom: 14px;
}

.footer-address, .footer-phone {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  color: var(--text-dim);
  line-height: 1.5;
  margin-top: 8px;
  max-width: 32ch;
}

.footer-address svg, .footer-phone svg {
  flex-shrink: 0;
  margin-top: 3px;
  color: var(--neon-blue-bright);
}

.footer-col h4 {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 18px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a {
  font-size: 14px;
  color: var(--text-muted);
  transition: color 0.25s, transform 0.25s;
  display: inline-block;
}

.footer-col a:hover {
  color: var(--cyan);
  transform: translateX(3px);
}

.footer-base {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--line-soft);
  padding-top: 24px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dimmer);
}

.footer-base span {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* --- Responsive Media Queries --- */
@media (max-width: 1080px) {
  .chapters {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 860px) {
  .nav-links, .nav-cta {
    display: none;
  }
  .nav-burger {
    display: block;
  }
  .sec-grid, .sec-grid-reverse {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .metrics-strip {
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
  }
}

@media (max-width: 560px) {
  .hero-top {
    max-width: 100%;
  }
  .chapters {
    grid-template-columns: 1fr;
  }
  .metrics-strip {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-base {
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  [data-rv] {
    opacity: 1 !important;
    transform: none !important;
  }
  .mask-line > span {
    transform: none !important;
  }
}