:root {
  --bg-deep: #020716;
  --bg-surface: rgba(3, 12, 34, 0.88);
  --bg-surface-hover: rgba(5, 20, 54, 0.95);
  --bg-tech-card: rgba(4, 16, 44, 0.78);
  
  --cyan: #00d2ff;
  --cyan-bright: #38e1ff;
  --cyan-glow: rgba(0, 210, 255, 0.5);
  
  --blue-core: #0077ff;
  --blue-glow: rgba(0, 119, 255, 0.4);
  
  --gold: #ffaa00;
  --gold-glow: rgba(255, 170, 0, 0.5);
  
  --green: #00ffaa;
  --green-glow: rgba(0, 255, 170, 0.4);
  
  --red: #ff2255;
  --red-glow: rgba(255, 34, 85, 0.4);
  
  --text-primary: #e2f4ff;
  --text-dim: #6e94be;
  --text-muted: #3d5e82;
  --text-bright: #ffffff;
  
  --font-hud: 'Orbitron', -apple-system, sans-serif;
  --font-mono: 'Share Tech Mono', 'Courier New', monospace;
  --font-ui: 'Rajdhani', -apple-system, sans-serif;

  --border-hud: rgba(0, 210, 255, 0.25);
  --border-gold: rgba(255, 170, 0, 0.35);
  --border-dim: rgba(0, 210, 255, 0.12);
}

/* RESET & BASE */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}

html {
  scroll-behavior: smooth;
}

body.sci-fi-body {
  background-color: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
}

/* ATMOSPHERIC BACKGROUND */
.hud-space {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 0;
  pointer-events: none;
}

.hud-grid-plane {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(to right, rgba(0, 210, 255, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 210, 255, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
}

.hud-radar-concentric {
  position: absolute;
  top: 45%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 900px;
  height: 900px;
  border-radius: 50%;
  border: 1px dashed rgba(0, 210, 255, 0.07);
  box-shadow: 0 0 140px rgba(0, 210, 255, 0.03);
}

.hud-radar-concentric::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 600px;
  border-radius: 50%;
  border: 1px solid rgba(0, 210, 255, 0.05);
}

.hud-scanline-fx {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.12),
    rgba(0, 0, 0, 0.12) 2px,
    transparent 2px,
    transparent 4px
  );
  opacity: 0.6;
}

.hud-vignette {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, transparent 40%, rgba(2, 7, 22, 0.85) 95%);
}

#particle-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* GLOBAL TECH CORNERS OVERLAY */
.viewport-tech-border {
  position: fixed;
  top: 10px;
  left: 10px;
  right: 10px;
  bottom: 10px;
  pointer-events: none;
  z-index: 99;
  border: 1px solid rgba(0, 210, 255, 0.06);
}

.edge-tick {
  position: absolute;
  width: 18px;
  height: 18px;
}

.edge-tick.top-left {
  top: -2px;
  left: -2px;
  border-top: 2px solid var(--cyan);
  border-left: 2px solid var(--cyan);
}

.edge-tick.top-right {
  top: -2px;
  right: -2px;
  border-top: 2px solid var(--cyan);
  border-right: 2px solid var(--cyan);
}

.edge-tick.bottom-left {
  bottom: -2px;
  left: -2px;
  border-bottom: 2px solid var(--cyan);
  border-left: 2px solid var(--cyan);
}

.edge-tick.bottom-right {
  bottom: -2px;
  right: -2px;
  border-bottom: 2px solid var(--cyan);
  border-right: 2px solid var(--cyan);
}

/* MASTER WRAPPER */
.master-wrapper {
  position: relative;
  z-index: 10;
  max-width: 1320px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

/* TECH CARD REUSABLE BASE */
.tech-card {
  position: relative;
  background: var(--bg-tech-card);
  border: 1px solid var(--border-hud);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5), inset 0 0 15px rgba(0, 210, 255, 0.03);
  transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.corner-cross {
  position: absolute;
  width: 7px;
  height: 7px;
  pointer-events: none;
}

.corner-cross.top-left { top: -1px; left: -1px; border-top: 2px solid var(--cyan); border-left: 2px solid var(--cyan); }
.corner-cross.top-right { top: -1px; right: -1px; border-top: 2px solid var(--cyan); border-right: 2px solid var(--cyan); }
.corner-cross.bottom-left { bottom: -1px; left: -1px; border-bottom: 2px solid var(--cyan); border-left: 2px solid var(--cyan); }
.corner-cross.bottom-right { bottom: -1px; right: -1px; border-bottom: 2px solid var(--cyan); border-right: 2px solid var(--cyan); }

/* HEADER */
.hud-header {
  margin-bottom: 16px;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
}

.arc-logo-orb {
  position: relative;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 2px solid var(--cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 15px var(--cyan-glow);
}

.arc-ring-spin {
  position: absolute;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px dashed var(--gold);
  animation: spinSlow 8s linear infinite;
}

.arc-core-dot {
  width: 10px;
  height: 10px;
  background: #ffffff;
  border-radius: 50%;
  box-shadow: 0 0 10px #ffffff, 0 0 20px var(--cyan);
}

@keyframes spinSlow {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.brand-title {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-hud);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--text-bright);
}

.badge-mk {
  font-size: 11px;
  padding: 2px 7px;
  background: rgba(255, 170, 0, 0.15);
  border: 1px solid var(--gold);
  color: var(--gold);
  font-family: var(--font-mono);
  letter-spacing: 1px;
}

.brand-sub {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-dim);
  letter-spacing: 1.5px;
}

.hud-nav {
  display: flex;
  gap: 20px;
}

.nav-link {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-dim);
  text-decoration: none;
  letter-spacing: 1px;
  transition: all 0.2s ease;
}

.nav-bracket {
  color: var(--text-muted);
  transition: color 0.2s ease;
}

.nav-link:hover {
  color: var(--cyan-bright);
  text-shadow: 0 0 10px var(--cyan-glow);
}

.nav-link:hover .nav-bracket {
  color: var(--cyan);
}

.header-status {
  display: flex;
  align-items: center;
  gap: 16px;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 7px;
  background: rgba(0, 210, 255, 0.08);
  border: 1px solid rgba(0, 210, 255, 0.25);
  padding: 5px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
  letter-spacing: 1px;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
  box-shadow: 0 0 8px var(--gold);
  animation: pulseDot 1.5s infinite alternate;
}

@keyframes pulseDot {
  from { opacity: 0.4; transform: scale(0.8); }
  to { opacity: 1; transform: scale(1.2); }
}

/* DEV BANNER STRIP */
.dev-banner-strip {
  background: linear-gradient(90deg, rgba(255, 170, 0, 0.12) 0%, rgba(0, 210, 255, 0.15) 50%, rgba(255, 170, 0, 0.12) 100%);
  border: 1px solid rgba(255, 170, 0, 0.35);
  padding: 9px 20px;
  margin-bottom: 30px;
  box-shadow: 0 0 20px rgba(255, 170, 0, 0.08);
}

.dev-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
}

.banner-tag {
  color: var(--gold);
  font-weight: bold;
  letter-spacing: 1px;
}

.banner-msg {
  color: var(--text-primary);
}

.banner-version {
  color: var(--cyan);
}

/* BUTTONS */
.hud-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(3, 16, 44, 0.9);
  border: 1px solid var(--border-hud);
  color: var(--text-bright);
  font-family: var(--font-hud);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-decoration: none;
  padding: 10px 18px;
  cursor: pointer;
  transition: all 0.25s ease;
  overflow: hidden;
}

.hud-btn:hover {
  background: rgba(0, 210, 255, 0.15);
  border-color: var(--cyan);
  box-shadow: 0 0 20px var(--cyan-glow);
  transform: translateY(-1px);
}

.hud-btn.glow-gold {
  border-color: var(--gold);
  color: var(--gold);
}

.hud-btn.glow-gold:hover {
  background: rgba(255, 170, 0, 0.15);
  box-shadow: 0 0 20px var(--gold-glow);
  color: #ffffff;
}

.hud-btn.glow-cyan {
  border-color: var(--cyan);
  color: var(--cyan);
}

.hud-btn.primary-hud-btn {
  background: rgba(0, 210, 255, 0.18);
  border-color: var(--cyan);
  color: var(--cyan-bright);
  padding: 14px 26px;
  font-size: 13px;
  box-shadow: 0 0 25px rgba(0, 210, 255, 0.25);
}

.hud-btn.primary-hud-btn:hover {
  background: var(--cyan);
  color: #020716;
  box-shadow: 0 0 35px var(--cyan);
}

.hud-btn.secondary-hud-btn {
  padding: 14px 24px;
  font-size: 13px;
  border-color: var(--gold);
  color: var(--gold);
}

.hud-btn.secondary-hud-btn:hover {
  background: rgba(255, 170, 0, 0.2);
  color: #ffffff;
  box-shadow: 0 0 25px var(--gold-glow);
}

/* HERO SECTION */
.hero-section {
  padding: 40px 0 60px;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}

.tech-pill-tag {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  background: rgba(0, 210, 255, 0.08);
  border: 1px solid rgba(0, 210, 255, 0.35);
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--cyan);
  letter-spacing: 2px;
  margin-bottom: 20px;
}

.pulsar {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: pulseDot 1.2s infinite alternate;
}

.pulsar.gold {
  background: var(--gold);
  box-shadow: 0 0 10px var(--gold);
}

.hero-title {
  font-family: var(--font-hud);
  font-size: 42px;
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: 2px;
  color: var(--text-bright);
  margin-bottom: 20px;
}

.text-cyan-glow {
  color: var(--cyan-bright);
  text-shadow: 0 0 25px var(--cyan-glow);
}

.hero-description {
  font-size: 18px;
  color: var(--text-dim);
  line-height: 1.6;
  margin-bottom: 30px;
  max-width: 600px;
}

.hero-description strong {
  color: var(--text-bright);
}

.hero-cta-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}

.hero-telemetry-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  background: rgba(2, 10, 28, 0.7);
  border: 1px solid var(--border-dim);
  padding: 16px;
}

.telemetry-item {
  border-left: 2px solid var(--border-hud);
  padding-left: 10px;
}

.telemetry-lbl {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.telemetry-val {
  font-family: var(--font-hud);
  font-size: 16px;
  font-weight: 700;
  margin: 2px 0;
}

.telemetry-sub {
  font-size: 11px;
  color: var(--text-dim);
}

.text-gold { color: var(--gold); }
.text-cyan { color: var(--cyan); }
.text-green { color: var(--green); }

/* 3D ARC REACTOR VISUAL STAGE */
.hologram-stage-frame {
  padding: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  background: radial-gradient(circle at center, rgba(0, 119, 255, 0.15) 0%, rgba(2, 7, 22, 0.9) 75%);
}

.frame-tag {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 1.5px;
  padding: 3px 8px;
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid var(--border-dim);
}

.top-left-tag { top: -10px; left: 14px; color: var(--cyan); }
.top-right-tag { top: -10px; right: 14px; color: var(--cyan); }
.top-right-tag.gold { color: var(--gold); border-color: var(--border-gold); }

.reactor-3d-wrapper {
  position: relative;
  width: 320px;
  height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 30px 0;
  perspective: 800px;
  cursor: crosshair;
}

.reactor-ring {
  position: absolute;
  border-radius: 50%;
}

.outer-ring {
  width: 290px;
  height: 290px;
  border: 2px dashed rgba(0, 210, 255, 0.3);
  animation: spinOuter 20s linear infinite;
  box-shadow: 0 0 30px rgba(0, 210, 255, 0.15);
}

.mid-ring {
  width: 230px;
  height: 230px;
  border: 2px solid rgba(0, 210, 255, 0.4);
  border-top-color: var(--gold);
  border-bottom-color: var(--gold);
  animation: spinMid 12s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

.segment-ring {
  width: 170px;
  height: 170px;
  animation: spinOuter 8s linear infinite reverse;
}

.core-segment {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 14px;
  height: 6px;
  background: var(--gold);
  box-shadow: 0 0 10px var(--gold);
  transform-origin: 0 0;
}

.seg-1 { transform: rotate(0deg) translate(75px, -3px); }
.seg-2 { transform: rotate(45deg) translate(75px, -3px); }
.seg-3 { transform: rotate(90deg) translate(75px, -3px); }
.seg-4 { transform: rotate(135deg) translate(75px, -3px); }
.seg-5 { transform: rotate(180deg) translate(75px, -3px); }
.seg-6 { transform: rotate(225deg) translate(75px, -3px); }
.seg-7 { transform: rotate(270deg) translate(75px, -3px); }
.seg-8 { transform: rotate(315deg) translate(75px, -3px); }

.inner-circuit {
  width: 120px;
  height: 120px;
  border: 1px dashed rgba(0, 255, 170, 0.5);
  animation: spinOuter 6s linear infinite;
}

.reactor-pulsing-core {
  position: relative;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: radial-gradient(circle, #ffffff 15%, var(--cyan) 55%, var(--blue-core) 90%);
  box-shadow: 0 0 35px #ffffff, 0 0 70px var(--cyan-glow), 0 0 120px var(--blue-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: pulseCore 2s ease-in-out infinite alternate;
}

@keyframes spinOuter {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes spinMid {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes pulseCore {
  from { transform: scale(0.95); filter: brightness(1); }
  to { transform: scale(1.08); filter: brightness(1.35); }
}

.holo-orbit-data {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 9.5px;
  color: var(--cyan);
  background: rgba(2, 7, 22, 0.85);
  border: 1px solid var(--border-hud);
  padding: 2px 6px;
  letter-spacing: 1px;
}

.data-top { top: 10px; }
.data-bottom { bottom: 10px; }
.data-left { left: 5px; }
.data-right { right: 5px; }

.reactor-status-footer {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border-dim);
  padding-top: 16px;
}

.audio-bars {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 18px;
}

.audio-bars .bar {
  width: 3px;
  background: var(--cyan);
  border-radius: 1px;
  height: 4px;
  animation: barBounce 0.8s infinite alternate;
}

.audio-bars .bar:nth-child(2) { animation-delay: 0.15s; height: 12px; }
.audio-bars .bar:nth-child(3) { animation-delay: 0.3s; height: 16px; }
.audio-bars .bar:nth-child(4) { animation-delay: 0.2s; height: 8px; }
.audio-bars .bar:nth-child(5) { animation-delay: 0.4s; height: 18px; }
.audio-bars .bar:nth-child(6) { animation-delay: 0.25s; height: 10px; }
.audio-bars .bar:nth-child(7) { animation-delay: 0.35s; height: 14px; }
.audio-bars .bar:nth-child(8) { animation-delay: 0.1s; height: 6px; }

@keyframes barBounce {
  from { height: 3px; }
  to { height: 18px; }
}

.sfx-toggle-btn {
  display: flex;
  align-items: center;
  gap: 7px;
  background: rgba(0, 210, 255, 0.08);
  border: 1px solid var(--border-hud);
  color: var(--cyan);
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  cursor: pointer;
  letter-spacing: 1px;
  transition: all 0.2s ease;
}

.sfx-toggle-btn:hover {
  background: rgba(0, 210, 255, 0.2);
}

.sfx-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
}

/* SECTION CONTAINER */
.section-container {
  padding: 70px 0;
}

.section-header {
  margin-bottom: 40px;
  text-align: center;
}

.section-num {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 2px;
  margin-bottom: 8px;
}

.section-title {
  font-family: var(--font-hud);
  font-size: 32px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--text-bright);
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 17px;
  color: var(--text-dim);
  max-width: 680px;
  margin: 0 auto;
}

/* OVERVIEW GRID */
.overview-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.overview-card {
  padding: 30px 24px;
}

.overview-card:hover {
  transform: translateY(-4px);
  border-color: var(--cyan);
  box-shadow: 0 12px 36px rgba(0, 210, 255, 0.12);
}

.card-icon {
  font-size: 36px;
  margin-bottom: 16px;
}

.card-title {
  font-family: var(--font-hud);
  font-size: 18px;
  color: var(--text-bright);
  margin-bottom: 12px;
}

.card-desc {
  font-size: 15px;
  color: var(--text-dim);
  line-height: 1.6;
}

/* FEATURES GRID */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 28px 22px;
  display: flex;
  flex-direction: column;
}

.feature-card:hover {
  border-color: var(--cyan);
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0, 210, 255, 0.1);
}

.feature-tag {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--gold);
  letter-spacing: 1.5px;
  margin-bottom: 10px;
}

.feature-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.f-icon {
  font-size: 22px;
  color: var(--cyan);
}

.f-title {
  font-family: var(--font-hud);
  font-size: 16px;
  color: var(--text-bright);
}

.f-desc {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.55;
  margin-bottom: 20px;
  flex-grow: 1;
}

.code-mono {
  font-family: var(--font-mono);
  color: var(--cyan);
  background: rgba(0, 210, 255, 0.08);
  padding: 1px 4px;
}

.f-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.spec-pill {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-muted);
  border: 1px solid var(--border-dim);
  padding: 3px 8px;
  background: rgba(2, 7, 22, 0.6);
}

/* SIMULATOR */
.simulator-wrapper {
  padding: 24px;
  background: rgba(2, 8, 26, 0.95);
  border: 1px solid var(--cyan);
  box-shadow: 0 0 35px rgba(0, 210, 255, 0.15);
}

.sim-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-hud);
  padding-bottom: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 10px;
}

.sim-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sim-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 10px var(--green);
}

.sim-title {
  font-family: var(--font-hud);
  font-size: 13px;
  letter-spacing: 1.5px;
  color: var(--text-bright);
}

.sim-status {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
}

.sim-preset-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.preset-label {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--gold);
  letter-spacing: 1px;
}

.preset-btn {
  background: rgba(0, 210, 255, 0.06);
  border: 1px solid var(--border-hud);
  color: var(--text-primary);
  font-family: var(--font-ui);
  font-size: 12.5px;
  padding: 5px 12px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.preset-btn:hover {
  background: rgba(0, 210, 255, 0.2);
  border-color: var(--cyan);
  color: var(--cyan-bright);
}

.sim-terminal-screen {
  background: #01040d;
  border: 1px solid var(--border-dim);
  padding: 16px;
  height: 240px;
  overflow-y: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sim-line.system {
  color: var(--text-muted);
}

.sim-line.user {
  color: var(--gold);
}

.sim-line.bot {
  color: var(--cyan-bright);
}

.sim-line .bot-tag {
  color: var(--cyan);
  font-weight: bold;
}

.sim-input-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(3, 14, 40, 0.8);
  border: 1px solid var(--border-hud);
  padding: 8px 12px;
}

.prompt-symbol {
  color: var(--cyan);
  font-weight: bold;
  font-size: 18px;
}

.sim-input-row input {
  flex-grow: 1;
  background: transparent;
  border: none;
  color: var(--text-bright);
  font-family: var(--font-mono);
  font-size: 14px;
  outline: none;
}

.sim-input-row input::placeholder {
  color: var(--text-muted);
}

/* ARCHITECTURE DIAGRAM */
.architecture-diagram {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  padding: 34px;
}

.diag-column {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.diag-node {
  width: 100%;
  background: rgba(2, 9, 28, 0.9);
  border: 1px solid var(--border-hud);
  padding: 20px;
  text-align: center;
}

.diag-node.highlight-cyan { border-color: var(--cyan); box-shadow: 0 0 20px rgba(0, 210, 255, 0.1); }
.diag-node.highlight-gold { border-color: var(--gold); box-shadow: 0 0 20px rgba(255, 170, 0, 0.1); }
.diag-node.highlight-green { border-color: var(--green); box-shadow: 0 0 20px rgba(0, 255, 170, 0.1); }

.node-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--gold);
  letter-spacing: 2px;
  margin-bottom: 6px;
}

.diag-node h4 {
  font-family: var(--font-hud);
  font-size: 16px;
  color: var(--text-bright);
  margin-bottom: 6px;
}

.diag-node p {
  font-size: 13.5px;
  color: var(--text-dim);
}

.diag-arrow {
  color: var(--cyan);
  font-size: 20px;
  animation: arrowPulse 1.5s infinite;
}

@keyframes arrowPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; text-shadow: 0 0 10px var(--cyan); }
}

/* ROADMAP */
.roadmap-timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.timeline-card {
  padding: 26px 20px;
}

.timeline-card.in-progress {
  border-color: var(--gold);
  box-shadow: 0 0 30px rgba(255, 170, 0, 0.12);
}

.timeline-badge {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 1px;
  padding: 4px 10px;
  display: inline-block;
  margin-bottom: 14px;
}

.timeline-badge.done {
  background: rgba(0, 255, 170, 0.1);
  border: 1px solid var(--green);
  color: var(--green);
}

.timeline-badge.active {
  background: rgba(255, 170, 0, 0.15);
  border: 1px solid var(--gold);
  color: var(--gold);
  animation: pulseDot 1.5s infinite alternate;
}

.timeline-badge.upcoming {
  background: rgba(0, 210, 255, 0.08);
  border: 1px solid var(--border-hud);
  color: var(--text-dim);
}

.timeline-title {
  font-family: var(--font-hud);
  font-size: 16px;
  color: var(--text-bright);
  margin-bottom: 16px;
}

.timeline-list {
  list-style: none;
  font-size: 14px;
  color: var(--text-dim);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* ACCESS BOX */
.access-box {
  padding: 50px 30px;
  text-align: center;
  background: radial-gradient(circle at center, rgba(255, 170, 0, 0.08) 0%, rgba(2, 7, 22, 0.95) 70%);
  border-color: var(--gold);
}

.access-content {
  max-width: 640px;
  margin: 0 auto;
}

.access-title {
  font-family: var(--font-hud);
  font-size: 32px;
  font-weight: 800;
  letter-spacing: 2px;
  color: var(--text-bright);
  margin: 14px 0 12px;
}

.access-desc {
  font-size: 16px;
  color: var(--text-dim);
  margin-bottom: 28px;
}

.access-form {
  display: flex;
  gap: 12px;
  max-width: 480px;
  margin: 0 auto 16px;
}

.input-wrapper {
  flex-grow: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(3, 14, 40, 0.9);
  border: 1px solid var(--border-hud);
  padding: 10px 14px;
}

.input-wrapper input {
  background: transparent;
  border: none;
  color: var(--text-bright);
  font-family: var(--font-mono);
  font-size: 14px;
  width: 100%;
  outline: none;
}

.form-feedback {
  font-family: var(--font-mono);
  font-size: 13px;
  margin-top: 10px;
  min-height: 20px;
}

.access-footer-links {
  margin-top: 24px;
  font-size: 14px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}

.repo-link {
  color: var(--gold);
  text-decoration: none;
  font-weight: bold;
}

.repo-link:hover {
  text-decoration: underline;
}

/* FOOTER */
.hud-footer {
  margin-top: 50px;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-brand {
  font-family: var(--font-hud);
  font-size: 14px;
  font-weight: 700;
  color: var(--text-bright);
  letter-spacing: 1.5px;
}

.footer-sub {
  font-size: 12px;
  color: var(--text-dim);
}

.coord-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--cyan);
}

.footer-copy {
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-muted);
}

.footer-right {
  display: flex;
  gap: 10px;
}

.hud-mini-btn {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  text-decoration: none;
  border: 1px solid var(--border-dim);
  padding: 4px 10px;
  background: rgba(2, 7, 22, 0.6);
  transition: all 0.2s ease;
}

.hud-mini-btn:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* RESPONSIVE BREAKPOINTS */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .hero-description {
    margin: 0 auto 30px;
  }
  .hero-cta-group {
    justify-content: center;
  }
  .hero-telemetry-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .features-grid, .overview-grid, .roadmap-timeline {
    grid-template-columns: repeat(2, 1fr);
  }
  .hud-nav {
    display: none;
  }
}

@media (max-width: 680px) {
  .features-grid, .overview-grid, .roadmap-timeline, .architecture-diagram {
    grid-template-columns: 1fr;
  }
  .hero-title {
    font-size: 28px;
  }
  .hero-telemetry-grid {
    grid-template-columns: 1fr;
  }
  .access-form {
    flex-direction: column;
  }
  .reactor-3d-wrapper {
    width: 260px;
    height: 260px;
  }
  .outer-ring {
    width: 240px;
    height: 240px;
  }
}