@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500&family=Outfit:wght@200;300;400;600;700&display=swap');

:root {
  /* Brand Core Colors */
  --bg-dark: #020104;
  /* Deep space black */
  --bg-graphite: #0a0512;
  /* Very dark purple tint */

  /* Primary Violet/Purple */
  --primary-violet: #8B5CF6;
  --primary-purple: #A855F7;
  --accent-magenta: #d946ef;

  /* Text */
  --text-white: #f8f5ff;
  --text-muted: #948aa6;

  /* UI Systems */
  --glass-bg: rgba(15, 10, 25, 0.4);
  --glass-border: rgba(139, 92, 246, 0.2);
  --glass-border-hover: rgba(168, 85, 247, 0.6);
  --neon-glow: 0 0 30px rgba(139, 92, 246, 0.4);
  --intense-glow: 0 0 50px rgba(168, 85, 247, 0.6);
  --gradient-text: linear-gradient(135deg, #fff 0%, #A855F7 100%);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-white);
  overflow-x: clip;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* High-tech Scrollbar */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
  background: var(--primary-purple);
  border-radius: 10px;
  box-shadow: 0 0 10px var(--primary-purple);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--accent-magenta);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: 'Outfit', sans-serif;
  font-weight: 300;
  /* Thinner, elegant cinematic feel */
  letter-spacing: -0.03em;
}

strong {
  font-weight: 600;
  color: var(--primary-purple);
}

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

ul {
  list-style: none;
}

/* Background Canvas */
#webgl-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 2;
  /* Increased to be in front of the 3D object */
  pointer-events: none;
  /* Add subtle fog layer over canvas */
  box-shadow: inset 0 0 150px 100px var(--bg-dark);
}

/* Navigation */
nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: 1.5rem 4%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 100;
  background: linear-gradient(to bottom, rgba(2, 1, 4, 0.95) 0%, rgba(2, 1, 4, 0) 100%);
  backdrop-filter: blur(15px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: 'Outfit', sans-serif;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: 3px;
  color: var(--text-white);
  transition: all 0.4s ease;
}

.header-logo-img {
  height: 45px;
  filter: drop-shadow(0 0 10px rgba(139, 92, 246, 0.6));
  transition: filter 0.4s ease;
}

/* Nav logo */
nav .header-logo-img {
  transform-style: preserve-3d;
  filter: drop-shadow(0 0 10px rgba(168, 85, 247, 0.4));
  transition: all 0.4s ease;
}

nav .logo:hover .header-logo-img {
  transform: scale(1.05);
  filter: brightness(0) invert(1) drop-shadow(0 0 15px rgba(255, 255, 255, 0.5));
}

/* Footer logo stays static */
.footer-logo .header-logo-img {
  animation: none;
  transition: none;
}

@keyframes logo-flip {
  /* Resting — face forward */
  0%   {
    transform: rotateY(0deg);
    filter: drop-shadow(0 0 10px rgba(139, 92, 246, 0.6));
  }
  /* Mid first flip — edge-on, peak glow */
  12%  {
    transform: rotateY(90deg);
    filter: drop-shadow(0 0 45px #A855F7)
            drop-shadow(0 0 18px rgba(255, 255, 255, 0.5));
  }
  /* End first flip — 180deg, rest */
  24%  {
    transform: rotateY(180deg);
    filter: drop-shadow(0 0 12px rgba(139, 92, 246, 0.7));
  }
  /* Hold at 180deg */
  50%  {
    transform: rotateY(180deg);
    filter: drop-shadow(0 0 10px rgba(139, 92, 246, 0.6));
  }
  /* Mid second flip — edge-on, peak glow */
  62%  {
    transform: rotateY(270deg);
    filter: drop-shadow(0 0 45px #A855F7)
            drop-shadow(0 0 18px rgba(255, 255, 255, 0.5));
  }
  /* End second flip — 360deg (=0deg), rest */
  74%  {
    transform: rotateY(360deg);
    filter: drop-shadow(0 0 12px rgba(139, 92, 246, 0.7));
  }
  /* Hold at 360deg before repeating */
  100% {
    transform: rotateY(360deg);
    filter: drop-shadow(0 0 10px rgba(139, 92, 246, 0.6));
  }
}

.nav-links {
  display: flex;
  gap: 2.5rem;
}

.nav-links a {
  font-size: 0.85rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  transition: all 0.3s ease;
  position: relative;
  padding-bottom: 5px;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text-white);
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.3);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0%;
  height: 1px;
  background: var(--primary-purple);
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: var(--neon-glow);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 1.2rem 2.5rem;
  font-family: 'Outfit', sans-serif;
  font-weight: 500;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
  z-index: 1;
}

.btn-primary {
  background: rgba(139, 92, 246, 0.1);
  color: var(--text-white);
  border: 1px solid var(--primary-violet);
  box-shadow: 0 0 15px rgba(139, 92, 246, 0.2) inset;
}

.btn-primary::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(168, 85, 247, 0.2), transparent);
  transition: all 0.5s ease;
  z-index: -1;
}

.btn-primary:hover {
  background: rgba(139, 92, 246, 0.2);
  border-color: var(--primary-purple);
  box-shadow: var(--intense-glow);
  transform: translateY(-2px);
}

.btn-primary:hover::before {
  left: 100%;
}

.btn-secondary {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  color: var(--text-white);
  border-color: rgba(255, 255, 255, 0.4);
  background: rgba(255, 255, 255, 0.03);
}

/* Common Section & Typography */
.section-tag {
  color: var(--primary-purple);
  font-family: 'Outfit', sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  margin-bottom: 2.5rem;
  display: inline-block;
  border: 1px solid rgba(139, 92, 246, 0.3);
  padding: 0.8rem 1.8rem;
  border-radius: 100px;
  background: rgba(139, 92, 246, 0.05);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.section-title {
  font-size: 4.5rem;
  font-weight: 200;
  margin-bottom: 2rem;
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1.1;
}

.hero-desc {
  font-size: 1.3rem;
  font-weight: 300;
  color: var(--text-muted);
  margin-bottom: 3rem;
  max-width: 650px;
}

/* Glass Card */
.glass-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.glass-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
}

/* Footer */
footer {
  border-top: 1px solid var(--glass-border);
  padding: 5rem 8% 2.5rem;
  background: var(--bg-dark);
  position: relative;
  z-index: 10;
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 4rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid var(--glass-border);
  margin-bottom: 2rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-white);
  text-decoration: none;
  margin-bottom: 1.1rem;
}

.footer-tagline {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.75;
  max-width: 300px;
  margin-bottom: 1.6rem;
}

.footer-social {
  display: flex;
  gap: 0.65rem;
}

.footer-social-icon {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(139,92,246,0.28);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.85rem;
  text-decoration: none;
  transition: border-color 0.3s ease, color 0.3s ease, background 0.3s ease;
}

.footer-social-icon:hover {
  border-color: var(--primary-purple);
  color: var(--primary-purple);
  background: rgba(139,92,246,0.08);
}

.footer-col-title {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--primary-violet);
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color 0.25s ease;
}

.footer-links a:hover { color: var(--text-white); }

.footer-address {
  font-style: normal;
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.85;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.footer-copy {
  color: var(--text-muted);
  font-size: 0.775rem;
  opacity: 0.65;
}

.footer-privacy {
  color: var(--text-muted);
  font-size: 0.775rem;
  text-decoration: none;
  opacity: 0.65;
  transition: color 0.25s ease, opacity 0.25s ease;
}

.footer-privacy:hover {
  color: var(--text-white);
  opacity: 1;
}

@media (max-width: 900px) {
  .footer-inner {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 540px) {
  footer { padding: 3.5rem 6% 2rem; }
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
}

/* Global utility */
.magnetic {
  display: inline-block;
}

/* ── Mobile hamburger button ──────────────────── */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: 1px solid rgba(139,92,246,0.3);
  border-radius: 6px;
  cursor: pointer;
  padding: 6px 10px;
  z-index: 200;
  flex-shrink: 0;
  -webkit-tap-highlight-color: transparent;
}

.nav-toggle-bar {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-white);
  border-radius: 2px;
  transition: transform 0.32s cubic-bezier(0.16,1,0.3,1),
              opacity 0.22s ease, width 0.22s ease;
  transform-origin: center;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) {
  opacity: 0; width: 0;
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Global responsive ────────────────────────── */
@media (max-width: 1024px) {
  .section-title { font-size: 3.5rem; }
}

@media (max-width: 768px) {
  body { overflow-x: hidden; }
  .section-title { font-size: 2.5rem; }

  /* Activate hamburger */
  .nav-toggle { display: flex; }

  .nav-links {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(2,1,4,0.97);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1.5rem;
    z-index: -1;
    opacity: 0;
    pointer-events: none;
    overflow-y: auto;
    padding: 2rem 0;
    transform: translateY(-16px);
    transition: opacity 0.35s ease, transform 0.38s cubic-bezier(0.16,1,0.3,1);
  }

  .nav-links.nav-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .nav-links a {
    font-size: 1.35rem;
    letter-spacing: 4px;
    padding: 0.6rem 0;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
  }

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

  .nav-links.nav-open a:nth-child(1) { transition-delay: 0.15s; }
  .nav-links.nav-open a:nth-child(2) { transition-delay: 0.25s; }
  .nav-links.nav-open a:nth-child(3) { transition-delay: 0.35s; }
  .nav-links.nav-open a:nth-child(4) { transition-delay: 0.45s; }
  .nav-links.nav-open a:nth-child(5) { transition-delay: 0.55s; }

  /* Hide underline animation on mobile overlay */
  .nav-links a::after { display: none; }

  /* Touch-friendly sizing */
  .btn { min-height: 48px; padding: 0.9rem 2rem; }
  .footer-social-icon { width: 44px; height: 44px; }
  .footer-links a { min-height: 44px; display: flex; align-items: center; }
}

@media (max-width: 480px) {
  nav { padding: 1rem 5%; }
  .logo { font-size: 1.1rem; letter-spacing: 2px; }
  .header-logo-img { height: 32px !important; }
  .footer-social { flex-wrap: wrap; }
}

/* Cinematic Sections Architecture */
.cinematic-section {
  position: relative;
  min-height: 600vh;
  /* Long-scroll depth for 6 stories */
  padding: 0;
  /* Removed background and overflow: clip to allow sticky and show particles */
}

.sticky-wrapper {
  position: sticky;
  top: 0;
  height: 100vh;
  width: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.atmosphere-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.challenge-bg-gradient {
  position: absolute;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, #0a0512 0%, var(--bg-dark) 100%);
  pointer-events: none;
}

.content-layer {
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 5%;
}

.challenge-story-block {
  position: absolute;
  width: 45%;
  opacity: 0;
  transform: translateY(100px);
  pointer-events: none;
}

.challenge-story-block.active {
  pointer-events: auto;
}

.challenge-title {
  font-size: 6rem;
  font-weight: 300;
  line-height: 1.1;
  margin-bottom: 2.5rem;
  color: var(--text-white);
  letter-spacing: -0.02em;
}

.challenge-title span {
  display: block;
  font-weight: 700;
  background: linear-gradient(90deg, #fff, var(--primary-purple), var(--accent-magenta));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-top: 5px;
  text-shadow: 0 0 40px rgba(168, 85, 247, 0.3);
  animation: shimmer 5s infinite linear;
}

@keyframes shimmer {
  0% {
    background-position: 0% center;
  }

  100% {
    background-position: 200% center;
  }
}

.challenge-desc {
  font-size: 1.6rem;
  font-weight: 300;
  line-height: 1.6;
  color: var(--text-muted);
  max-width: 600px;
  border-left: 1px solid var(--primary-violet);
  padding-left: 2.5rem;
  margin-bottom: 3rem;
}

/* Floating UI Components */
.telemetry-node {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 1rem 2rem;
  background: rgba(10, 5, 18, 0.92);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 8px;
  font-family: 'Outfit', sans-serif;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-white);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
  z-index: 15;
  transition: all 0.4s ease;
}

.telemetry-node:hover {
  border-color: var(--primary-purple);
}

.node-pulse {
  width: 8px;
  height: 8px;
  background: var(--primary-purple);
  border-radius: 50%;
  position: relative;
}

.node-pulse::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  border: 1px solid var(--primary-purple);
  border-radius: 50%;
  animation: pulse-ring 2s infinite;
}

@keyframes pulse-ring {
  0% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
  }

  100% {
    transform: translate(-50%, -50%) scale(3);
    opacity: 0;
  }
}

/* Cinematic Image Integration */
.visual-layer {
  position: absolute;
  top: 0;
  right: 0;
  width: 100%;
  height: 100%;
  z-index: 5;
  pointer-events: none;
}

.cinematic-img-container {
  position: absolute;
  width: 50%;
  height: 65%;
  right: -5%;
  top: 17.5%;
  opacity: 0;
  transform: scale(1.1);
  will-change: transform, opacity;
  filter: grayscale(0.2) brightness(0.7);
  overflow: visible;
  background: transparent;
  border: none;
}

/* Removed container overlay */

.visual-inner {
  width: 100%;
  height: 100%;
  position: relative;
  overflow: hidden;
  will-change: transform;
}

.visual-inner img {
  width: 110%;
  /* Slightly larger for parallax */
  height: 110%;
  object-fit: cover;
  position: absolute;
  top: -5%;
  left: -5%;
}

/* HUD Overlay Elements */
.hud-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 3;
  pointer-events: none;
}

.hud-svg {
  width: 100%;
  height: 100%;
  stroke: var(--primary-purple);
  stroke-width: 1;
  fill: none;
  opacity: 0.6;
}

.hud-corner {
  stroke-dasharray: 40 400;
  stroke-width: 2;
}

.hud-label {
  position: absolute;
  font-family: 'Outfit', sans-serif;
  font-size: 0.6rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--primary-purple);
  opacity: 0.5;
}

.label-tl {
  top: 20px;
  left: 20px;
}

.label-br {
  bottom: 20px;
  right: 20px;
}

/* Scanline Effect */
.scanlines {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.1) 50%),
    linear-gradient(90deg, rgba(255, 0, 0, 0.03), rgba(0, 255, 0, 0.01), rgba(0, 0, 255, 0.03));
  background-size: 100% 4px, 3px 100%;
  z-index: 4;
  pointer-events: none;
  opacity: 0.4;
}

.challenge-story-block {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
}

/* Position variations for asymmetry */
.block-left {
  left: 5%;
}

.block-right {
  right: 5%;
}

.img-left {
  left: -5%;
  right: auto;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .challenge-title {
    font-size: 4rem;
  }

  .challenge-story-block {
    width: 60%;
  }

  .cinematic-img-container {
    width: 80%;
    opacity: 0.3 !important;
  }
}

@media (max-width: 768px) {
  .challenge-title {
    font-size: 3rem;
  }

  .challenge-story-block {
    width: 90%;
  }

  .cinematic-img-container {
    width: 100%;
    top: 0;
    right: 0;
  }
}

.hud-label {
  animation: hud-flicker 4s infinite;
}

@keyframes hud-flicker {

  0%,
  100% {
    opacity: 0.5;
  }

  5% {
    opacity: 0.2;
  }

  10% {
    opacity: 0.5;
  }

  15% {
    opacity: 0.3;
  }

  20% {
    opacity: 0.5;
  }
}

/* Abstract Visuals Base */
.abstract-visual {
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  background: transparent;
}

.abstract-visual svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

/* Common Elements */
.terrain-line,
.radar-ring,
.depth-line,
.mesh-line {
  fill: none;
  stroke: var(--primary-purple);
  stroke-width: 0.5;
  opacity: 0.3;
}

.faint {
  opacity: 0.1;
}

.node-error {
  fill: #ef4444;
}

.node-error-pulse {
  fill: none;
  stroke: #ef4444;
  stroke-width: 0.5;
  transform-origin: center;
  animation: pulse-error 2s infinite;
}

.node-active {
  fill: var(--primary-violet);
  opacity: 0.8;
}

.link-active {
  stroke: var(--primary-violet);
  stroke-width: 0.5;
  opacity: 0.5;
}

.link-failed {
  stroke: #ef4444;
  stroke-width: 0.5;
  stroke-dasharray: 2 4;
  opacity: 0.5;
}

.node-isolated {
  fill: var(--text-muted);
  opacity: 0.2;
}

@keyframes pulse-error {
  0% {
    transform: scale(0.5);
    opacity: 1;
    stroke-width: 1;
  }

  100% {
    transform: scale(2);
    opacity: 0;
    stroke-width: 0;
  }
}

/* Vis 2: Disaster Radar */
.radar-container {
  width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.radar-axis {
  stroke: var(--primary-purple);
  stroke-width: 0.5;
  opacity: 0.2;
}

.radar-sweep {
  position: absolute;
  width: 50%;
  height: 50%;
  top: 0;
  left: 50%;
  background: conic-gradient(from 0deg, transparent 40%, rgba(168, 85, 247, 0.1) 80%, rgba(168, 85, 247, 0.8) 100%);
  transform-origin: bottom left;
  animation: radar-spin 3s linear infinite;
}

@keyframes radar-spin {
  100% {
    transform: rotate(360deg);
  }
}

.sector-error {
  fill: rgba(239, 68, 68, 0.2);
}

.glitch-anim {
  animation: glitch 2s infinite step-end;
}

@keyframes glitch {
  0%   { opacity: 1; fill: rgba(239, 68, 68, 0.2); }
  10%  { opacity: 0.2; }
  12%  { opacity: 1; fill: rgba(239, 68, 68, 0.6); }
  14%  { opacity: 0.2; }
  16%  { opacity: 1; fill: rgba(239, 68, 68, 0.2); }
  100% { opacity: 1; }
}

/* Vis 3: Marine */
.vis-marine {
  background: transparent;
}

.vessel-error {
  fill: #ef4444;
  opacity: 0.8;
}

.signal-lost {
  fill: none;
  stroke: #ef4444;
  stroke-width: 0.5;
  stroke-dasharray: 2 4;
}

.sonar-ping {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 100px;
  height: 100px;
  border: 1px solid var(--primary-purple);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  animation: sonar 4s infinite ease-out;
}

.delay-1 {
  animation-delay: 1s;
}

.delay-2 {
  animation-delay: 2s;
}

@keyframes sonar {
  100% {
    transform: translate(-50%, -50%) scale(4);
    opacity: 0;
  }
}

/* Vis 4: Rural */
.pulse-slow {
  animation: pulse-opacity 3s infinite;
}

@keyframes pulse-opacity {

  0%,
  100% {
    opacity: 0.2;
  }

  50% {
    opacity: 0.8;
  }
}

/* Vis 5: Agriculture */
.agri-grid-container {
  width: 100%;
  height: 100%;
  position: absolute;
  perspective: 500px;
  overflow: hidden;
}

.agri-grid {
  width: 200%;
  height: 200%;
  position: absolute;
  top: 0;
  left: -50%;
  background-image: linear-gradient(var(--primary-purple) 1px, transparent 1px),
    linear-gradient(90deg, var(--primary-purple) 1px, transparent 1px);
  background-size: 20px 20px;
  opacity: 0.1;
  transform: rotateX(60deg) translateY(-100px);
}

.laser-scanner {
  width: 100%;
  height: 2px;
  background: #ef4444;
  position: absolute;
  top: 0;
  box-shadow: 0 0 10px #ef4444;
  animation: scan-down 3s infinite ease-in-out alternate;
}

@keyframes scan-down {
  100% {
    top: 100%;
  }
}

.plot-error {
  fill: rgba(239, 68, 68, 0.2);
  stroke: #ef4444;
  stroke-width: 0.5;
}

.agri-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 2;
}

/* Vis 6: Infrastructure */
.node-core {
  fill: var(--primary-purple);
}

.glow {
  filter: drop-shadow(0 0 10px var(--primary-purple));
}

.data-packet {
  fill: none;
  stroke: var(--text-white);
  stroke-width: 1;
  stroke-dasharray: 10 100;
  animation: data-flow 2s linear infinite;
}

@keyframes data-flow {
  100% {
    stroke-dashoffset: -110;
  }
}



/* Solution Transformation Visuals */
.full-mesh {
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at center, rgba(139, 92, 246, 0.05), transparent 70%);
}

.transformation-svg {
  width: 80%;
  height: 80%;
  max-width: 1000px;
  filter: drop-shadow(0 0 20px rgba(139, 92, 246, 0.1));
}

.node {
  fill: var(--text-muted);
  opacity: 0.3;
}

.core-node {
  fill: var(--primary-purple);
  filter: drop-shadow(0 0 15px var(--primary-purple));
  opacity: 0.8;
}

.link {
  fill: none;
  stroke: var(--primary-purple);
  stroke-width: 1;
  opacity: 0;
}

.data-packet-dot {
  fill: var(--text-white);
  filter: drop-shadow(0 0 5px var(--text-white));
  opacity: 0;
}

.packet-link {
  fill: none;
  stroke: #fff;
  stroke-width: 4;
  stroke-linecap: round;
  stroke-dasharray: 20 1000;
  filter: blur(1px) drop-shadow(0 0 12px #fff);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s ease;
}

@keyframes node-pulse-live {

  0%,
  100% {
    r: 4;
    fill: var(--primary-purple);
    opacity: 0.6;
    filter: drop-shadow(0 0 5px var(--primary-purple));
  }

  50% {
    r: 6;
    fill: #fff;
    opacity: 1;
    filter: drop-shadow(0 0 15px #fff);
  }
}

.node-communicating {
  animation: node-pulse-live 2.5s infinite ease-in-out;
}

.core-node.node-communicating {
  animation-duration: 1.5s;
  /* Core pulses faster */
}

/* Stages Content */
.center-content {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  z-index: 20;
  pointer-events: none;
}

.solution-stage {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  max-width: 800px;
  padding: 2rem;
  opacity: 0;
  pointer-events: none;
}

.solution-stage .challenge-title {
  font-size: 3.5rem;
  margin-bottom: 1.5rem;
}

.solution-stage .challenge-desc {
  font-size: 1.2rem;
  color: var(--text-muted);
}

.stage-intro {
  z-index: 30;
}

.stage-intro .challenge-title {
  font-size: 5rem;
  line-height: 1.1;
  max-width: 900px;
}

/* Global Polish: Section Spacing */
#challenge,
#solution-ecosystem {
  margin-top: 0;
  /* Removed margin-top to ensure smooth pinning */
}



/* Ecosystem Preview Section */
/* old ecosystem-block rules removed */




/* ============================================
   SOLUTION SECTION v2 — Clean Scroll Design
   No GSAP pin. No sticky. No height conflicts.
   Architecture: scroll-triggered card stagger
============================================ */

/* Override: solution section is NOT a cinematic-section anymore */
#solution-ecosystem {
  min-height: unset !important;
  position: relative;
  z-index: 20;
  padding: 10rem 5% 6rem;
  background: var(--bg-dark);
  overflow: visible;
}

/* Section Header */
.sol-header {
  text-align: center;
  max-width: 900px;
  margin: 0 auto 8rem;
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.9s ease, transform 0.9s ease;
}

.sol-header.sol-visible {
  opacity: 1;
  transform: translateY(0);
}

.sol-main-title {
  font-family: 'Outfit', sans-serif;
  font-size: 5rem;
  font-weight: 200;
  line-height: 1.1;
  color: var(--text-white);
  margin: 1.5rem 0 2rem;
  letter-spacing: -0.03em;
}

.sol-main-title span {
  font-weight: 700;
  background: linear-gradient(90deg, #A855F7, #D946EF, #8B5CF6);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 5s linear infinite;
}

.sol-main-desc {
  font-size: 1.3rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* Spine Track */
.sol-track {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 0 4rem;
}

/* Vertical spine */
.sol-spine {
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 1px;
  transform: translateX(-50%);
  background: rgba(139, 92, 246, 0.1);
  z-index: 1;
}

.sol-spine-fill {
  width: 100%;
  height: 0%;
  background: linear-gradient(to bottom, var(--primary-purple), var(--accent-magenta));
  box-shadow: 0 0 12px var(--primary-purple);
  transition: height 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.sol-spine-fill.sol-spine-active {
  height: 100%;
}

/* Stage Cards */
.sol-stage-card {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 4rem;
  margin-bottom: 8rem;
  padding-right: 55%;
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 5;
}

.sol-stage-card.sol-card-right {
  padding-right: 0;
  padding-left: 55%;
  transform: translateX(60px);
  flex-direction: row-reverse;
}

.sol-stage-card.sol-visible {
  opacity: 1;
  transform: translateX(0);
}

/* Stage Number Badge */
.sol-stage-num {
  position: absolute;
  left: 50%;
  top: 2rem;
  transform: translateX(-50%);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Outfit', sans-serif;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--primary-purple);
  background: var(--bg-dark);
  border: 1px solid rgba(139, 92, 246, 0.4);
  border-radius: 50%;
  box-shadow: 0 0 20px rgba(139, 92, 246, 0.2);
  z-index: 10;
  transition: all 0.4s ease;
}

.sol-stage-card.sol-visible .sol-stage-num {
  border-color: var(--primary-purple);
  box-shadow: 0 0 30px rgba(139, 92, 246, 0.5), 0 0 0 6px rgba(139, 92, 246, 0.07);
  color: #fff;
  background: rgba(139, 92, 246, 0.12);
}

/* Card Inner */
.sol-card-inner {
  background: rgba(10, 5, 18, 0.7);
  border: 1px solid rgba(139, 92, 246, 0.12);
  border-radius: 20px;
  padding: 3rem;
  backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
  flex: 1;
  transition: border-color 0.4s ease, box-shadow 0.4s ease;
}

.sol-card-inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.5), transparent);
}

.sol-stage-card:hover .sol-card-inner {
  border-color: rgba(139, 92, 246, 0.35);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6), 0 0 40px rgba(139, 92, 246, 0.1);
}

.sol-card-final {
  background: rgba(139, 92, 246, 0.04);
  border-color: rgba(139, 92, 246, 0.2);
}

.sol-card-label {
  margin-bottom: 1.5rem;
}

.sol-card-title {
  font-family: 'Outfit', sans-serif;
  font-size: 3rem;
  font-weight: 200;
  line-height: 1.1;
  color: var(--text-white);
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.sol-card-title span {
  display: block;
  font-weight: 700;
  background: linear-gradient(90deg, #fff, var(--primary-purple), var(--accent-magenta));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 5s linear infinite;
}

.sol-card-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.7;
  border-left: 2px solid rgba(139, 92, 246, 0.3);
  padding-left: 1.5rem;
  margin-bottom: 2rem;
}

/* SVG Visuals */
.sol-card-visual {
  margin: 2rem 0;
  height: 160px;
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(139, 92, 246, 0.08);
}

.sol-svg {
  width: 100%;
  height: 100%;
}

/* SVG Stage 1 — Activation */
.sv-core {
  fill: var(--primary-purple);
  filter: drop-shadow(0 0 8px var(--primary-purple));
  animation: sv-core-pulse 2s infinite ease-in-out;
}

@keyframes sv-core-pulse {

  0%,
  100% {
    r: 10;
    opacity: 0.9;
  }

  50% {
    r: 13;
    opacity: 1;
    filter: drop-shadow(0 0 16px #fff);
  }
}

.sv-node {
  fill: var(--primary-violet);
  opacity: 0;
  animation: sv-node-appear 0.6s forwards ease-out;
}

.sv-n1 {
  animation-delay: 0.2s;
}

.sv-n2 {
  animation-delay: 0.5s;
}

.sv-n3 {
  animation-delay: 0.8s;
}

.sv-n4 {
  animation-delay: 1.1s;
}

@keyframes sv-node-appear {
  from {
    opacity: 0;
    transform: scale(0);
  }

  to {
    opacity: 0.9;
    transform: scale(1);
  }
}

.sv-link {
  stroke: var(--primary-violet);
  stroke-width: 1;
  fill: none;
  opacity: 0;
  stroke-dasharray: 200;
  stroke-dashoffset: 200;
  animation: sv-draw 0.8s forwards ease-out;
}

.sv-l1 {
  animation-delay: 0.4s;
}

.sv-l2 {
  animation-delay: 0.7s;
}

.sv-l3 {
  animation-delay: 1.0s;
}

.sv-l4 {
  animation-delay: 1.3s;
}

@keyframes sv-draw {
  from {
    stroke-dashoffset: 200;
    opacity: 0;
  }

  to {
    stroke-dashoffset: 0;
    opacity: 0.6;
  }
}

.sv-ring {
  fill: none;
  stroke: var(--primary-purple);
  stroke-width: 0.5;
  opacity: 0;
  animation: sv-ring-expand 3s infinite ease-out;
}

.sv-ring-1 {
  animation-delay: 0s;
}

.sv-ring-2 {
  animation-delay: 1s;
}

@keyframes sv-ring-expand {
  0% {
    opacity: 0.6;
    r: 20;
  }

  100% {
    opacity: 0;
    r: 70;
  }
}

/* SVG Stage 2 — Mesh */
.sv-node-sm {
  fill: var(--primary-violet);
  opacity: 0.7;
  animation: sv-node-blink 3s infinite ease-in-out;
}

.sv-node-sm:nth-child(odd) {
  animation-delay: 0.5s;
}

.sv-node-sm:nth-child(3n) {
  animation-delay: 1s;
}

@keyframes sv-node-blink {

  0%,
  100% {
    opacity: 0.5;
  }

  50% {
    opacity: 1;
    filter: drop-shadow(0 0 4px var(--primary-purple));
  }
}

.sv-mesh-link {
  stroke: var(--primary-violet);
  stroke-width: 0.5;
  opacity: 0.25;
  fill: none;
}

.sv-data-flow {
  stroke: #fff;
  stroke-width: 3;
  fill: none;
  stroke-linecap: round;
  stroke-dasharray: 15 200;
  opacity: 0.7;
  filter: drop-shadow(0 0 4px #fff);
}

.df-1 {
  animation: sv-flow 2s linear infinite;
}

.df-2 {
  animation: sv-flow 2s linear infinite 0.7s;
}

.df-3 {
  animation: sv-flow 2s linear infinite 1.4s;
}

@keyframes sv-flow {
  from {
    stroke-dashoffset: 215;
  }

  to {
    stroke-dashoffset: 0;
  }
}

/* SVG Stage 3 — Globe */
.sv-globe-ring,
.sv-globe-eq,
.sv-globe-merid {
  fill: none;
  stroke: var(--primary-violet);
  stroke-width: 0.8;
  opacity: 0.25;
}

.sv-orbit {
  fill: none;
  stroke: var(--primary-purple);
  stroke-width: 1;
  opacity: 0.5;
  stroke-dasharray: 5 3;
  animation: sv-orbit-spin 8s linear infinite;
  transform-origin: 150px 100px;
}

@keyframes sv-orbit-spin {
  from {
    stroke-dashoffset: 0;
  }

  to {
    stroke-dashoffset: -100;
  }
}

.sv-satellite {
  fill: #fff;
  filter: drop-shadow(0 0 6px #fff);
  animation: sv-satellite-move 8s linear infinite;
}

@keyframes sv-satellite-move {
  0% {
    transform: rotate(0deg);
    transform-origin: 150px 100px;
  }

  100% {
    transform: rotate(360deg);
    transform-origin: 150px 100px;
  }
}

.sv-sat-link {
  stroke: var(--primary-purple);
  stroke-width: 0.8;
  stroke-dasharray: 4 3;
  opacity: 0.5;
  fill: none;
  animation: sv-link-flash 2s infinite;
}

@keyframes sv-link-flash {

  0%,
  100% {
    opacity: 0.5;
  }

  50% {
    opacity: 1;
  }
}

.sv-beacon {
  fill: var(--primary-purple);
  animation: sv-beacon-pulse 2s infinite ease-in-out;
}

.sv-beacon:nth-child(odd) {
  animation-delay: 0.5s;
}

@keyframes sv-beacon-pulse {

  0%,
  100% {
    opacity: 0.6;
  }

  50% {
    opacity: 1;
    filter: drop-shadow(0 0 6px var(--primary-purple));
  }
}

.sol-globe-visual {
  background: radial-gradient(circle at center, rgba(139, 92, 246, 0.08), transparent 70%);
}

.sol-globe-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.15), transparent 70%);
  border-radius: 50%;
  animation: globe-breathe 4s infinite ease-in-out;
  pointer-events: none;
}

@keyframes globe-breathe {

  0%,
  100% {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0.5;
  }

  50% {
    transform: translate(-50%, -50%) scale(1.3);
    opacity: 1;
  }
}

/* Stats Row */
.sol-stat-row {
  display: flex;
  gap: 2rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(139, 92, 246, 0.1);
}

.sol-stat {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.sol-stat-val {
  font-family: 'Outfit', sans-serif;
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-white);
  letter-spacing: -0.02em;
}

.sol-stat-lbl {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
}

/* Final CTA */
.sol-cta-btn {
  margin-top: 2.5rem;
  pointer-events: auto;
  display: inline-flex;
}

/* =====================
   Responsive
===================== */
@media (max-width: 1024px) {

  .sol-stage-card,
  .sol-stage-card.sol-card-right {
    padding-left: 0;
    padding-right: 0;
    flex-direction: column;
  }

  .sol-spine {
    display: none;
  }

  .sol-stage-num {
    position: relative;
    left: auto;
    top: auto;
    transform: none;
    margin-bottom: 1.5rem;
  }

  .sol-main-title {
    font-size: 3.5rem;
  }

  .sol-card-title {
    font-size: 2.5rem;
  }
}

@media (max-width: 768px) {
  #solution-ecosystem {
    padding: 6rem 5% 4rem;
  }

  .sol-main-title {
    font-size: 2.5rem;
  }

  .sol-card-title {
    font-size: 2rem;
  }

  .sol-card-inner {
    padding: 2rem;
  }

  .sol-stat-row {
    flex-wrap: wrap;
    gap: 1rem;
  }

  .sol-header {
    margin-bottom: 4rem;
  }

  .sol-stage-card {
    margin-bottom: 4rem;
  }
}


/* ============================================================
   ECOSYSTEM PREVIEW — Compact Grid (v2)
============================================================ */
.ecosystem-preview-section {
  padding: 7rem 5% 8rem;
  background: var(--bg-dark);
  position: relative;
  z-index: 30;
}

.eco-header-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 4rem;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.85s ease, transform 0.85s cubic-bezier(0.16, 1, 0.3, 1);
}

.eco-header-row.eco-header-visible {
  opacity: 1;
  transform: translateY(0);
}

.eco-section-title {
  font-family: 'Outfit', sans-serif;
  font-size: 3.5rem;
  font-weight: 200;
  color: var(--text-white);
  margin-top: 1.2rem;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.eco-section-title span {
  font-weight: 700;
  background: linear-gradient(90deg, #A855F7, #D946EF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.eco-main-cta {
  white-space: nowrap;
  flex-shrink: 0;
  align-self: flex-end;
  margin-bottom: 0.3rem;
}

/* 5-column compact grid */
.eco-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1.2rem;
}

.eco-card {
  position: relative;
  padding: 2rem 1.6rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(139, 92, 246, 0.1);
  border-radius: 16px;
  overflow: hidden;
  cursor: default;
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.75s ease,
              transform 0.75s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.4s ease,
              box-shadow 0.4s ease;
}

.eco-card.eco-visible {
  opacity: 1;
  transform: translateY(0);
}

.eco-card.eco-visible:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.55);
}

/* Color-specific border accent on hover */
.eco-card[data-color="green"]:hover {
  border-color: rgba(34, 197, 94, 0.4);
}

.eco-card[data-color="amber"]:hover {
  border-color: rgba(245, 158, 11, 0.4);
}

.eco-card[data-color="violet"]:hover {
  border-color: rgba(139, 92, 246, 0.5);
}

.eco-card[data-color="blue"]:hover {
  border-color: rgba(59, 130, 246, 0.4);
}

.eco-card[data-color="red"]:hover {
  border-color: rgba(239, 68, 68, 0.4);
}

.eco-card-icon {
  width: 36px;
  height: 36px;
  color: var(--primary-purple);
  margin-bottom: 1.2rem;
  opacity: 0.7;
}

.eco-card[data-color="green"] .eco-card-icon {
  color: #22c55e;
}

.eco-card[data-color="amber"] .eco-card-icon {
  color: #f59e0b;
}

.eco-card[data-color="violet"] .eco-card-icon {
  color: #a855f7;
}

.eco-card[data-color="blue"] .eco-card-icon {
  color: #3b82f6;
}

.eco-card[data-color="red"] .eco-card-icon {
  color: #ef4444;
}

.eco-card-title {
  font-family: 'Outfit', sans-serif;
  font-size: 1.15rem;
  font-weight: 300;
  color: var(--text-white);
  margin-bottom: 0.8rem;
  line-height: 1.2;
}

.eco-card-title span {
  display: block;
  font-weight: 700;
}

.eco-card-desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Subtle bg glow */
.eco-card-bg {
  position: absolute;
  inset: 0;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
  border-radius: 16px;
}

.eco-card:hover .eco-card-bg {
  opacity: 1;
}

.eco-card[data-color="green"] .eco-card-bg {
  background: radial-gradient(circle at 80% 20%, rgba(34, 197, 94, 0.07), transparent 60%);
}

.eco-card[data-color="amber"] .eco-card-bg {
  background: radial-gradient(circle at 80% 20%, rgba(245, 158, 11, 0.07), transparent 60%);
}

.eco-card[data-color="violet"] .eco-card-bg {
  background: radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1), transparent 60%);
}

.eco-card[data-color="blue"] .eco-card-bg {
  background: radial-gradient(circle at 80% 20%, rgba(59, 130, 246, 0.07), transparent 60%);
}

.eco-card[data-color="red"] .eco-card-bg {
  background: radial-gradient(circle at 80% 20%, rgba(239, 68, 68, 0.07), transparent 60%);
}

/* Top shimmer line */
.eco-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 20%;
  right: 20%;
  height: 1px;
  opacity: 0;
  transition: opacity 0.35s ease;
  border-radius: 100px;
}

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

.eco-card[data-color="green"]:hover::before {
  background: rgba(34, 197, 94, 0.5);
}

.eco-card[data-color="amber"]:hover::before {
  background: rgba(245, 158, 11, 0.5);
}

.eco-card[data-color="violet"]:hover::before {
  background: rgba(139, 92, 246, 0.6);
}

.eco-card[data-color="blue"]:hover::before {
  background: rgba(59, 130, 246, 0.5);
}

.eco-card[data-color="red"]:hover::before {
  background: rgba(239, 68, 68, 0.5);
}

@media (max-width: 1200px) {
  .eco-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .eco-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .eco-section-title {
    font-size: 2.5rem;
  }

  .eco-header-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .eco-main-cta {
    align-self: flex-start;
  }
}

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


/* ============================================================
   TECHNOLOGY STACK SECTION
============================================================ */
#tech-stack {
  padding: 9rem 5% 10rem;
  background: var(--bg-dark);
  position: relative;
  z-index: 25;
  overflow: hidden;
}

/* Faint grid texture */
#tech-stack::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(139, 92, 246, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 92, 246, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.ts-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 3rem;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.ts-header.ts-visible {
  opacity: 1;
  transform: translateY(0);
}

.ts-title {
  font-family: 'Outfit', sans-serif;
  font-size: 4rem;
  font-weight: 200;
  color: var(--text-white);
  margin: 1.2rem 0 1rem;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.ts-title span {
  font-weight: 700;
  background: linear-gradient(90deg, #A855F7, #D946EF, #8B5CF6);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 5s linear infinite;
}

.ts-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Flow direction label */
.ts-flow-label {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.8rem;
  font-family: 'Outfit', sans-serif;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 3px;
  color: rgba(139, 92, 246, 0.4);
  text-transform: uppercase;
  margin-bottom: 3rem;
}

.ts-flow-arrow {
  color: rgba(139, 92, 246, 0.3);
  animation: flow-bounce 1.5s infinite ease-in-out;
}

@keyframes flow-bounce {

  0%,
  100% {
    transform: translateY(0);
    opacity: 0.3;
  }

  50% {
    transform: translateY(4px);
    opacity: 0.7;
  }
}

/* Layers wrapper */
.ts-layers-wrap {
  max-width: 860px;
  margin: 0 auto;
  position: relative;
}

/* Vertical spine */
.ts-spine-wrap {
  position: absolute;
  left: 47px;
  top: 24px;
  bottom: 24px;
  width: 2px;
  z-index: 1;
  pointer-events: none;
}

.ts-spine-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.ts-spine-track {
  stroke: rgba(139, 92, 246, 0.12);
  stroke-width: 2;
}

.ts-spine-live {
  stroke: url(#tsGrad);
  stroke-width: 2;
  stroke-dasharray: 1000;
  stroke-dashoffset: 1000;
  transition: stroke-dashoffset 1.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.ts-spine-live.ts-spine-active {
  stroke-dashoffset: 0;
}

/* Pulse dots traveling down spine */
.ts-pulse {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--primary-purple);
  box-shadow: 0 0 8px var(--primary-purple);
  opacity: 0;
  animation: ts-pulse-travel 3s infinite ease-in-out;
}

.ts-p1 {
  animation-delay: 0s;
}

.ts-p2 {
  animation-delay: 1s;
}

.ts-p3 {
  animation-delay: 2s;
}

@keyframes ts-pulse-travel {
  0% {
    top: 0%;
    opacity: 0;
  }

  5% {
    opacity: 1;
  }

  95% {
    opacity: 1;
  }

  100% {
    top: 100%;
    opacity: 0;
  }
}

/* Individual layer */
.ts-layer {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-bottom: 1.4rem;
  position: relative;
  z-index: 2;
  opacity: 0;
  transform: translateX(-20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.ts-layer.ts-layer-visible {
  opacity: 1;
  transform: translateX(0);
}

/* Connector column */
.ts-layer-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 96px;
  flex-shrink: 0;
  padding-top: 28px;
}

.ts-connector-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg-dark);
  border: 2px solid rgba(139, 92, 246, 0.4);
  box-shadow: 0 0 10px rgba(139, 92, 246, 0.2);
  transition: all 0.4s ease;
  flex-shrink: 0;
}

.ts-layer.ts-layer-visible .ts-connector-dot {
  border-color: var(--primary-purple);
  box-shadow: 0 0 16px rgba(139, 92, 246, 0.5), 0 0 0 4px rgba(139, 92, 246, 0.07);
  background: rgba(139, 92, 246, 0.15);
}

.ts-layer-ai .ts-connector-dot {
  border-color: var(--accent-magenta);
}

/* Card */
.ts-layer-card {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 1.8rem 2.2rem;
  background: rgba(10, 5, 18, 0.6);
  border: 1px solid rgba(139, 92, 246, 0.1);
  border-radius: 14px;
  backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
  transition: border-color 0.35s ease, box-shadow 0.35s ease;
}

.ts-layer-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(139, 92, 246, 0.3), transparent);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.ts-layer:hover .ts-layer-card {
  border-color: rgba(139, 92, 246, 0.3);
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5), 0 0 30px rgba(139, 92, 246, 0.06);
}

.ts-layer:hover .ts-layer-card::before {
  opacity: 1;
}

/* Top AI layer — slightly different accent */
.ts-layer-card-top {
  border-color: rgba(139, 92, 246, 0.18);
  background: rgba(139, 92, 246, 0.04);
}

.ts-layer-card-top::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 10% 50%, rgba(139, 92, 246, 0.07), transparent 60%);
  pointer-events: none;
}

/* Left column: badge + icon */
.ts-layer-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.8rem;
  flex-shrink: 0;
}

.ts-layer-badge {
  font-family: 'Outfit', sans-serif;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: rgba(139, 92, 246, 0.5);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 4px;
  padding: 3px 7px;
}

.ts-badge-ai {
  color: var(--accent-magenta);
  border-color: rgba(217, 70, 239, 0.3);
}

.ts-layer-icon {
  width: 32px;
  height: 32px;
  color: rgba(139, 92, 246, 0.6);
}

/* Body */
.ts-layer-body {
  flex: 1;
}

.ts-layer-name {
  font-family: 'Outfit', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-white);
  margin-bottom: 0.35rem;
  letter-spacing: -0.01em;
}

.ts-layer-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 0.9rem;
  line-height: 1.5;
}

.ts-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.ts-tag {
  font-family: 'Outfit', sans-serif;
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(139, 92, 246, 0.6);
  background: rgba(139, 92, 246, 0.06);
  border: 1px solid rgba(139, 92, 246, 0.15);
  border-radius: 4px;
  padding: 3px 10px;
  transition: all 0.3s ease;
}

.ts-layer:hover .ts-tag {
  color: rgba(139, 92, 246, 0.9);
  border-color: rgba(139, 92, 246, 0.3);
  background: rgba(139, 92, 246, 0.1);
}

/* Status pill */
.ts-layer-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Outfit', sans-serif;
  font-size: 0.6rem;
  font-weight: 600;
  letter-spacing: 2px;
  color: rgba(139, 92, 246, 0.5);
  text-transform: uppercase;
  flex-shrink: 0;
  padding: 0.5rem 1rem;
  border: 1px solid rgba(139, 92, 246, 0.1);
  border-radius: 100px;
  white-space: nowrap;
}

.ts-status-ai {
  color: rgba(217, 70, 239, 0.6);
  border-color: rgba(217, 70, 239, 0.15);
}

.ts-status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary-purple);
  animation: ts-dot-blink 2s infinite ease-in-out;
}

.ts-status-ai .ts-status-dot {
  background: var(--accent-magenta);
  animation-delay: 0.3s;
}

@keyframes ts-dot-blink {

  0%,
  100% {
    opacity: 0.4;
    transform: scale(0.8);
  }

  50% {
    opacity: 1;
    transform: scale(1.2);
    box-shadow: 0 0 8px var(--primary-purple);
  }
}

/* Responsive */
@media (max-width: 768px) {
  .ts-layers-wrap {
    padding-left: 0;
  }

  .ts-spine-wrap {
    display: none;
  }

  .ts-layer-connector {
    width: 0;
    display: none;
  }

  .ts-layer-card {
    padding: 1.4rem;
    flex-wrap: wrap;
    gap: 1rem;
  }

  .ts-layer-status {
    display: none;
  }

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


/* ============================================================
   ECOSYSTEM PAGE — eco- prefix
============================================================ */

/* ---- Hero ---- */
#eco-hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  position: relative;
  z-index: 1;
  padding: 8rem 5% 4rem;
}

.eco-hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(139, 92, 246, 0.1) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}

.eco-hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
}

.eco-hero-title {
  font-family: 'Outfit', sans-serif;
  font-size: 5rem;
  font-weight: 200;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-white);
  margin: 1.5rem 0 1.5rem;
}

.eco-shimmer {
  font-weight: 700;
  background: linear-gradient(90deg, #A855F7, #D946EF, #8B5CF6, #A855F7);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 4s linear infinite;
}

.eco-hero-subtitle {
  font-size: 1.3rem;
  color: var(--text-muted);
  max-width: 620px;
  margin: 0 auto 3rem;
  line-height: 1.6;
}

.eco-hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  justify-content: center;
  margin-bottom: 4rem;
}

.eco-pill {
  display: inline-block;
  padding: 0.65rem 1.6rem;
  border-radius: 100px;
  border: 1px solid;
  font-family: 'Outfit', sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  transition: all 0.3s ease;
  text-decoration: none;
  color: var(--text-white);
  background: rgba(0, 0, 0, 0.3);
}

.eco-pill:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5);
  background: rgba(255, 255, 255, 0.05);
}

.eco-chevron {
  position: absolute;
  bottom: 2.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  animation: eco-chevron-pulse 2s ease-in-out infinite;
}

.eco-chevron svg {
  width: 32px;
  height: 32px;
  stroke: rgba(139, 92, 246, 0.5);
  stroke-width: 2;
  fill: none;
}

@keyframes eco-chevron-pulse {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.5; }
  50% { transform: translateX(-50%) translateY(8px); opacity: 1; }
}

/* ---- Sticky Nav ---- */
.eco-sticky-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 5, 18, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(139, 92, 246, 0.15);
  display: flex;
  gap: 0;
  overflow-x: auto;
  white-space: nowrap;
  scrollbar-width: none;
}

.eco-sticky-nav::-webkit-scrollbar { display: none; }

.eco-nav-link {
  display: inline-flex;
  align-items: center;
  padding: 1rem 2rem;
  font-family: 'Outfit', sans-serif;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  transition: all 0.3s ease;
  border-left: 2px solid transparent;
  text-decoration: none;
  flex-shrink: 0;
}

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

.eco-nav-link.eco-nav-active { color: var(--text-white); background: rgba(255,255,255,0.03); }

.eco-nav-agri.eco-nav-active   { border-left-color: #3B6D11; background: rgba(59,109,17,0.08); }
.eco-nav-rural.eco-nav-active  { border-left-color: #854F0B; background: rgba(133,79,11,0.08); }
.eco-nav-offgrid.eco-nav-active{ border-left-color: #534AB7; background: rgba(83,74,183,0.08); }
.eco-nav-indust.eco-nav-active { border-left-color: #185FA5; background: rgba(24,95,165,0.08); }
.eco-nav-educ.eco-nav-active   { border-left-color: #A32D2D; background: rgba(163,45,45,0.08); }

/* ---- Ecosystem Sections ---- */
.eco-section {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
  padding: 8rem 5%;
  min-height: 80vh;
  background: var(--bg-dark);
  position: relative;
  z-index: 20;
}

.eco-section-even .eco-visual-col { order: -1; }

.eco-text-col {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.9s cubic-bezier(0.16,1,0.3,1), transform 0.9s cubic-bezier(0.16,1,0.3,1);
}

.eco-section-even .eco-text-col { transform: translateX(60px); }

.eco-text-col.eco-reveal { opacity: 1; transform: translateX(0); }

.eco-visual-col {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 1s ease, transform 1s ease;
}

.eco-visual-col.eco-reveal { opacity: 1; transform: scale(1); }

.eco-section-tag {
  font-family: 'Outfit', sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  display: inline-block;
  border: 1px solid;
  padding: 0.6rem 1.4rem;
  border-radius: 100px;
  background: rgba(0,0,0,0.3);
  margin-bottom: 1.5rem;
  opacity: 0.9;
}

.eco-h2 {
  font-family: 'Outfit', sans-serif;
  font-size: 3.5rem;
  font-weight: 200;
  color: var(--text-white);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.eco-h2 strong {
  display: inline;
  font-weight: 700;
  background: linear-gradient(90deg, #fff, var(--primary-purple), var(--accent-magenta));
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 5s linear infinite;
}

.eco-challenge {
  font-size: 0.95rem;
  color: var(--text-muted);
  border-left: 3px solid;
  padding-left: 1.2rem;
  margin-bottom: 0.8rem;
  line-height: 1.6;
}

.eco-system-info,
.eco-impact {
  font-size: 0.92rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
  line-height: 1.6;
}

.eco-impact { color: rgba(248,245,255,0.8); }

.eco-feature-list {
  list-style: none;
  margin: 1rem 0 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.eco-feature-list li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.88rem;
  color: var(--text-white);
  opacity: 0.85;
}

.eco-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  flex-shrink: 0;
}

.eco-tech-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}

/* SVG container */
.eco-svg-wrap {
  width: 100%;
  background: rgba(0,0,0,0.2);
  border-radius: 16px;
  border: 1px solid rgba(139,92,246,0.1);
  overflow: hidden;
}

.eco-svg-wrap svg {
  width: 100%;
  height: auto;
  display: block;
}

/* ---- SVG Animations (paused by default, run on .eco-animated) ---- */

/* Agriculture scan line */
.eco-agri-scan {
  stroke: rgba(59,109,17,0.5);
  stroke-width: 1.5;
  fill: none;
  transform-box: view-box;
  transform-origin: 0 0;
  animation: eco-scan 3s infinite linear;
  animation-play-state: paused;
}
.eco-animated .eco-agri-scan { animation-play-state: running; }

@keyframes eco-scan {
  0%   { transform: translateY(0%); }
  100% { transform: translateY(100%); }
}

/* Rural gateway pulse rings */
.eco-rural-ring {
  fill: none;
  stroke-width: 1;
  animation: eco-rural-pulse 2s infinite ease-out;
  animation-play-state: paused;
}
.eco-rural-ring-2 { animation-delay: 1s; }
.eco-animated .eco-rural-ring { animation-play-state: running; }

@keyframes eco-rural-pulse {
  0%   { r: 8px; opacity: 0.8; }
  100% { r: 28px; opacity: 0; }
}

/* Data packet dash flows */
.eco-dash-flow {
  fill: none;
  stroke-dasharray: 8 14;
  animation: eco-dash 2s infinite linear;
  animation-play-state: paused;
}
.eco-animated .eco-dash-flow { animation-play-state: running; }

@keyframes eco-dash {
  from { stroke-dashoffset: 44; }
  to   { stroke-dashoffset: 0; }
}

/* Industrial bar oscillation */
.eco-bar {
  transform-box: fill-box;
  transform-origin: 50% 100%;
  animation: eco-bar-pulse 3s infinite ease-in-out;
  animation-play-state: paused;
}
.eco-bar-2 { animation-delay: 0.8s; }
.eco-bar-3 { animation-delay: 1.6s; }
.eco-animated .eco-bar { animation-play-state: running; }

@keyframes eco-bar-pulse {
  0%, 100% { transform: scaleY(0.4); }
  50%       { transform: scaleY(1); }
}

/* Industrial alert ring */
.eco-alert-ring {
  fill: none;
  stroke-width: 1;
  animation: eco-alert 1.5s infinite ease-out;
  animation-play-state: paused;
}
.eco-animated .eco-alert-ring { animation-play-state: running; }

@keyframes eco-alert {
  0%   { r: 10px; opacity: 0.8; }
  100% { r: 28px; opacity: 0; }
}

/* Education RFID rings */
.eco-rfid-ring {
  fill: none;
  stroke-width: 1;
  animation: eco-rfid 2s infinite ease-out;
  animation-play-state: paused;
}
.eco-rfid-ring-b { animation-delay: 0.5s; }
.eco-rfid-ring-c { animation-delay: 1s; }
.eco-rfid-ring-d { animation-delay: 1.5s; }
.eco-animated .eco-rfid-ring { animation-play-state: running; }

@keyframes eco-rfid {
  0%   { r: 5px; opacity: 0.8; }
  100% { r: 20px; opacity: 0; }
}

/* ---- Section 4: Interconnected Systems ---- */
#eco-interconnect {
  padding: 8rem 5%;
  background: var(--bg-dark);
  text-align: center;
  position: relative;
  z-index: 20;
}

.eco-interconnect-inner {
  max-width: 1000px;
  margin: 0 auto;
}

.eco-interconnect-title {
  font-family: 'Outfit', sans-serif;
  font-size: 4rem;
  font-weight: 200;
  color: var(--text-white);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 1.5rem 0 1rem;
}

.eco-interconnect-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 720px;
  margin: 0 auto 4rem;
  line-height: 1.6;
}

.eco-interconnect-svg-wrap {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 1s ease, transform 1s ease;
  max-width: 600px;
  margin: 0 auto;
}

.eco-interconnect-svg-wrap.eco-reveal {
  opacity: 1;
  transform: scale(1);
}

.eco-core-flow {
  fill: none;
  stroke: rgba(139,92,246,0.6);
  stroke-width: 1.5;
  stroke-dasharray: 6 14;
  animation: eco-core-dash 1.8s infinite linear;
  animation-play-state: paused;
}
.eco-core-flow-2 { animation-duration: 2.1s; }
.eco-core-flow-3 { animation-duration: 2.4s; }
.eco-core-flow-4 { animation-duration: 1.6s; }
.eco-core-flow-5 { animation-duration: 2.7s; }
.eco-animated .eco-core-flow { animation-play-state: running; }

@keyframes eco-core-dash {
  from { stroke-dashoffset: 60; }
  to   { stroke-dashoffset: 0; }
}

/* ---- Section 5: Tech Stack Strip ---- */
#eco-techstrip {
  padding: 5rem 5%;
  background: var(--bg-dark);
  position: relative;
  z-index: 20;
  border-top: 1px solid rgba(139,92,246,0.08);
}

.eco-techstrip-header { text-align: center; margin-bottom: 3rem; }

.eco-techstrip-title {
  font-family: 'Outfit', sans-serif;
  font-size: 1.8rem;
  font-weight: 300;
  color: var(--text-white);
  margin-top: 0.8rem;
  letter-spacing: -0.02em;
}

.eco-techstrip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.eco-layer-card {
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(139,92,246,0.1);
  border-radius: 12px;
  padding: 1.5rem;
}

.eco-layer-badge {
  font-family: 'Outfit', sans-serif;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(139,92,246,0.5);
  border: 1px solid rgba(139,92,246,0.2);
  border-radius: 4px;
  padding: 3px 7px;
  display: inline-block;
  margin-bottom: 0.7rem;
}

.eco-layer-name {
  font-family: 'Outfit', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-white);
  margin-bottom: 0.4rem;
}

.eco-layer-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.8rem;
  line-height: 1.5;
}

/* ---- Partner CTA (shared: index + ecosystem) ---- */
.partner-cta {
  padding: 8rem 5%;
  background: var(--bg-dark);
  text-align: center;
  position: relative;
  z-index: 20;
  border-top: 1px solid rgba(139,92,246,0.08);
}

.cta-inner {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
}

.cta-glow {
  position: absolute;
  inset: -80px;
  background: radial-gradient(circle at 50% 50%, rgba(139,92,246,0.1) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.cta-inner > *:not(.cta-glow) { position: relative; z-index: 1; }

.cta-title {
  font-family: 'Outfit', sans-serif;
  font-size: 4rem;
  font-weight: 200;
  color: var(--text-white);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 1.5rem 0 1rem;
}

.cta-subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  line-height: 1.6;
}

.cta-buttons {
  display: flex;
  gap: 1.2rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .eco-section {
    grid-template-columns: 1fr;
    gap: 3rem;
    min-height: unset;
    padding: 5rem 5%;
  }
  .eco-section-even .eco-visual-col { order: 0; }
  .eco-h2 { font-size: 2.8rem; }
  .eco-hero-title { font-size: 3.5rem; }
  .eco-techstrip-grid { grid-template-columns: repeat(2, 1fr); }
  .eco-interconnect-title { font-size: 3rem; }
  .cta-title { font-size: 3rem; }
}

@media (max-width: 768px) {
  .eco-hero-title { font-size: 2.4rem; }
  .eco-h2 { font-size: 2rem; }
  .cta-title { font-size: 2.5rem; }
  .eco-techstrip-grid { grid-template-columns: 1fr 1fr; }
}

/* ================================================
   VISION PAGE — vis- prefix
   ================================================ */

/* ---- Hero ---- */
.vis-hero {
  min-height: 85vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 10rem 5% 6rem;
  position: relative;
}

.vis-hero-title {
  font-size: 5rem;
  font-weight: 200;
  line-height: 1.08;
  letter-spacing: -0.04em;
  color: var(--text-white);
  margin: 1.2rem 0 1.5rem;
  max-width: 840px;
}

.vis-shimmer {
  background: linear-gradient(90deg,
    var(--text-white) 0%,
    var(--primary-purple) 35%,
    var(--accent-magenta) 55%,
    var(--text-white) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 4s linear infinite;
}

.vis-hero-sub {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 3rem;
  line-height: 1.75;
}

.vis-hero-divider {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary-violet), transparent);
}

/* ---- Map Section ---- */
.vis-map-section {
  padding: 7rem 5% 8rem;
  position: relative;
  overflow: hidden;
}

.vis-map-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 50%,
    rgba(139,92,246,0.05) 0%, transparent 70%);
  pointer-events: none;
}

.vis-map-header {
  text-align: center;
  margin-bottom: 3.5rem;
}

.vis-map-title {
  font-size: 3.5rem;
  font-weight: 200;
  letter-spacing: -0.03em;
  color: var(--text-white);
  margin: 1rem 0 1.2rem;
  line-height: 1.15;
}

.vis-map-title strong {
  color: var(--primary-purple);
  font-weight: 300;
}

.vis-map-sub {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.7;
}

.vis-map-wrap {
  max-width: 1000px;
  margin: 0 auto;
  position: relative;
  opacity: 0;
  transform: translateY(28px) scale(0.97);
  transition: opacity 1.1s ease, transform 1.2s cubic-bezier(0.16,1,0.3,1);
}

.vis-map-wrap.vis-reveal {
  opacity: 1;
  transform: translateY(0) scale(1);
}

.vis-map-svg {
  width: 100%;
  height: auto;
  overflow: visible;
}

/* India outline image (Wikimedia SVG — black stroke on transparent, so invert first then colorize) */
.vis-india-img-elem {
  filter: invert(1) brightness(0.48) sepia(1) hue-rotate(220deg) saturate(6) brightness(1.3) drop-shadow(0 0 6px rgba(139,92,246,0.55)) opacity(0.88);
}

/* Origin dot */
.vis-kerala-dot {
  fill: var(--primary-purple);
  filter: drop-shadow(0 0 10px rgba(168,85,247,0.95));
}

/* Kerala pulse rings */
.vis-k-ring {
  fill: none;
  stroke: var(--primary-purple);
  stroke-width: 1.5;
  animation: vis-k-ring 2.4s ease-out infinite;
  animation-play-state: paused;
}
.vis-k-ring-2 { animation-delay: 0.8s; }
.vis-k-ring-3 { animation-delay: 1.6s; }

.vis-map-wrap.vis-reveal .vis-k-ring { animation-play-state: running; }

@keyframes vis-k-ring {
  0%   { r: 7px; opacity: 0.9; }
  100% { r: 38px; opacity: 0; }
}

/* Route lines — solid, thin guide rails */
.vis-route {
  fill: none;
  stroke-width: 0.7;
  stroke-linecap: round;
  opacity: 0;
  transition: opacity 1.4s ease;
}
.vis-map-wrap.vis-reveal .vis-route { opacity: 0.28; }

.vis-route-1 { stroke: var(--primary-purple);  transition-delay: 0.20s; }
.vis-route-2 { stroke: var(--primary-violet);  transition-delay: 0.35s; }
.vis-route-3 { stroke: var(--accent-magenta);  transition-delay: 0.50s; }
.vis-route-4 { stroke: var(--primary-purple);  transition-delay: 0.15s; }
.vis-route-5 { stroke: var(--primary-violet);  transition-delay: 0.40s; }
.vis-route-6 { stroke: var(--accent-magenta);  transition-delay: 0.55s; }
.vis-route-7 { stroke: var(--primary-purple);  transition-delay: 0.30s; }

/* ── Traveling pulse nodes ────────────────────────── */
.vis-route-pulse {
  fill: none;
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 6 5000;
  stroke-dashoffset: 0;
  animation: vis-node-travel 3s linear infinite;
  animation-play-state: paused;
}
.vis-map-wrap.vis-reveal .vis-route-pulse { animation-play-state: running; }

@keyframes vis-node-travel {
  0%   { stroke-dashoffset: 0;     opacity: 0; }
  8%   { opacity: 1; }
  88%  { opacity: 0.9; }
  100% { stroke-dashoffset: -5006; opacity: 0; }
}

.vis-rp-1 { stroke: var(--primary-purple);  animation-duration: 2.6s; }
.vis-rp-2 { stroke: var(--primary-violet);  animation-duration: 3.3s; }
.vis-rp-3 { stroke: var(--accent-magenta);  animation-duration: 2.9s; }
.vis-rp-4 { stroke: var(--primary-purple);  animation-duration: 2.4s; }
.vis-rp-5 { stroke: var(--primary-violet);  animation-duration: 3.1s; }
.vis-rp-6 { stroke: var(--accent-magenta);  animation-duration: 3.0s; }
.vis-rp-7 { stroke: var(--primary-purple);  animation-duration: 2.7s; }
/* second node per route, staggered by half its duration */
.vis-rp-1.vis-rp-b { animation-delay: -1.30s; }
.vis-rp-2.vis-rp-b { animation-delay: -1.65s; }
.vis-rp-3.vis-rp-b { animation-delay: -1.45s; }
.vis-rp-4.vis-rp-b { animation-delay: -1.20s; }
.vis-rp-5.vis-rp-b { animation-delay: -1.55s; }
.vis-rp-6.vis-rp-b { animation-delay: -1.50s; }
.vis-rp-7.vis-rp-b { animation-delay: -1.35s; }

/* Destination dots */
.vis-dest {
  fill: var(--primary-violet);
  animation: vis-dest-pulse 2.5s ease-in-out infinite;
  animation-play-state: paused;
}
.vis-map-wrap.vis-reveal .vis-dest { animation-play-state: running; }

@keyframes vis-dest-pulse {
  0%, 100% { opacity: 0.45; }
  50%       { opacity: 1; }
}

/* City labels */
.vis-city-label {
  font-family: 'Outfit', sans-serif;
  font-size: 10px;
  fill: var(--text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0;
  transition: opacity 1.6s ease;
}
.vis-map-wrap.vis-reveal .vis-city-label { opacity: 1; }

.vis-kerala-label {
  font-family: 'Outfit', sans-serif;
  font-size: 11px;
  fill: var(--primary-purple);
  letter-spacing: 0.15em;
  font-weight: 600;
  text-transform: uppercase;
}

.vis-india-label {
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  fill: rgba(139,92,246,0.45);
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

/* Info chips */
.vis-map-chips {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 3rem;
}

.vis-chip {
  padding: 0.65rem 1.4rem;
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  font-family: 'Outfit', sans-serif;
  font-size: 0.83rem;
  color: var(--text-muted);
  background: rgba(139,92,246,0.04);
  letter-spacing: 0.03em;
}
.vis-chip strong { color: var(--primary-purple); font-weight: 500; }

/* ---- Manifesto Panels ---- */
.vis-manifesto {
  padding: 7rem 5%;
}

.vis-manifesto-inner {
  max-width: 1060px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.vis-panel {
  padding: 3.5rem;
  border-left: 2px solid var(--primary-violet);
  background: linear-gradient(135deg,
    rgba(15,10,25,0.55) 0%,
    rgba(15,10,25,0.15) 100%);
  border-radius: 0 16px 16px 0;
  position: relative;
  opacity: 0;
  transform: translateX(-30px);
  transition: opacity 0.9s ease, transform 0.9s cubic-bezier(0.16,1,0.3,1);
}

.vis-panel::before {
  content: '';
  position: absolute;
  top: 0; left: -5px;
  width: 9px; height: 9px;
  background: var(--primary-violet);
  border-radius: 50%;
  box-shadow: 0 0 18px rgba(139,92,246,0.8);
}

.vis-panel-magenta {
  border-left-color: var(--accent-magenta);
  transform: translateX(30px);
}

.vis-panel-magenta::before {
  background: var(--accent-magenta);
  box-shadow: 0 0 18px rgba(217,70,239,0.8);
}

.vis-panel.vis-reveal {
  opacity: 1;
  transform: translateX(0);
}

.vis-panel-tag {
  display: block;
  font-family: 'Outfit', sans-serif;
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--primary-violet);
  margin-bottom: 1.2rem;
}
.vis-panel-magenta .vis-panel-tag { color: var(--accent-magenta); }

.vis-panel-quote {
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--text-white);
  line-height: 1.5;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.vis-panel-body {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.8;
}

/* ---- Stats ---- */
.vis-stats-section {
  padding: 5rem 5%;
  border-top: 1px solid rgba(139,92,246,0.06);
  border-bottom: 1px solid rgba(139,92,246,0.06);
}

.vis-stats-grid {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.vis-stat-card {
  text-align: center;
  padding: 2.5rem 1.2rem;
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  background: rgba(139,92,246,0.025);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.vis-stat-card.vis-reveal { opacity: 1; transform: translateY(0); }

.vis-stat-num {
  display: block;
  font-family: 'Outfit', sans-serif;
  font-size: 2.8rem;
  font-weight: 200;
  color: var(--primary-purple);
  line-height: 1;
  margin-bottom: 0.6rem;
}

.vis-stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  line-height: 1.4;
}

/* ---- DNA / Keywords ---- */
.vis-dna {
  padding: 7rem 5%;
  text-align: center;
}

.vis-dna-heading {
  font-size: 3rem;
  font-weight: 200;
  letter-spacing: -0.03em;
  color: var(--text-white);
  margin: 1rem 0 0.8rem;
}

.vis-dna-sub {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 460px;
  margin: 0 auto 3rem;
}

.vis-keywords {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
  max-width: 780px;
  margin: 0 auto;
}

.vis-keyword {
  padding: 0.8rem 1.8rem;
  border: 1px solid rgba(139,92,246,0.2);
  border-radius: 50px;
  font-family: 'Outfit', sans-serif;
  font-size: 0.88rem;
  color: var(--text-muted);
  background: rgba(139,92,246,0.04);
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.5s ease, transform 0.5s ease, color 0.3s, border-color 0.3s, box-shadow 0.3s, background 0.3s;
  cursor: default;
}
.vis-keyword.vis-reveal { opacity: 1; transform: translateY(0); }
.vis-keyword:hover {
  color: var(--text-white);
  border-color: var(--primary-purple);
  background: rgba(139,92,246,0.12);
  box-shadow: var(--neon-glow);
  transform: translateY(-3px) !important;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .vis-hero-title { font-size: 3.5rem; }
  .vis-map-title { font-size: 2.6rem; }
  .vis-manifesto-inner { grid-template-columns: 1fr; }
  .vis-panel { transform: translateY(30px); }
  .vis-panel-magenta { transform: translateY(30px); }
  .vis-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .vis-dna-heading { font-size: 2.4rem; }
}

@media (max-width: 768px) {
  .vis-hero-title { font-size: 2.5rem; }
  .vis-map-title { font-size: 2rem; }
  .vis-dna-heading { font-size: 2rem; }
  .vis-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .vis-map-chips { gap: 0.8rem; }
}

/* ============================================================
   CHALLENGE SECTION — MOBILE LAYOUT OVERRIDE
   On phones the sticky-scroll cinematic experience is replaced
   by a clean, vertically-stacked card flow.  JS also skips the
   GSAP setup when window.innerWidth < 768.
============================================================ */
@media (max-width: 768px) {
  /* Let the section size itself naturally */
  .cinematic-section { min-height: unset !important; }

  /* Un-stick the wrapper so blocks flow normally */
  .sticky-wrapper {
    position: relative !important;
    height: auto !important;
    overflow: visible !important;
    display: block !important;
  }

  /* Keep the fixed visual-layer hidden; visuals are injected per-card via JS */
  .visual-layer { display: none !important; }

  /* Cloned SVG card injected by main.js into each story block */
  .mobile-story-visual {
    position: relative !important;
    top: auto !important; left: auto !important; right: auto !important;
    width: 100% !important;
    height: auto !important;
    aspect-ratio: 16 / 10 !important;
    opacity: 1 !important;
    transform: none !important;
    mask-image: none !important;
    -webkit-mask-image: none !important;
    margin: 1rem 0 1.8rem !important;
    overflow: visible !important;
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    flex-shrink: 0;
  }

  /* Scale down inner SVG so it fills the fixed-height card */
  .mobile-story-visual .abstract-visual {
    width: 100% !important;
    height: 100% !important;
    transform: none !important;
  }

  /* HUD overlay labels — smaller so they fit the card */
  .mobile-story-visual .hud-label {
    font-size: 0.46rem !important;
    letter-spacing: 1.4px !important;
    line-height: 1.6 !important;
  }
  .mobile-story-visual .label-tl { top: 8px !important;    left: 8px !important; }
  .mobile-story-visual .label-br { bottom: 8px !important; right: 8px !important; }

  /* HUD corner brackets */
  .mobile-story-visual .hud-corner {
    width: 28px !important;
    height: 28px !important;
  }

  /* Content layer becomes normal flow */
  .content-layer {
    padding: 0 !important;
    position: relative !important;
  }

  /* Story blocks become full-width stacked cards */
  .challenge-story-block {
    position: relative !important;
    top: auto !important;
    left: auto !important;
    right: auto !important;
    transform: none !important;
    width: 100% !important;
    opacity: 1 !important;
    padding: 3rem 5% 2.5rem !important;
    border-bottom: 1px solid rgba(139, 92, 246, 0.1);
    pointer-events: auto !important;
  }

  .challenge-story-block:last-child { border-bottom: none; }

  /* Remove left/right position classes on mobile */
  .block-left, .block-right {
    left: auto !important;
    right: auto !important;
  }

  /* Scale down the large challenge title */
  .challenge-title {
    font-size: 2.4rem !important;
    margin-bottom: 1.2rem;
  }

  /* Scale down challenge description */
  .challenge-desc {
    font-size: 1.1rem !important;
    padding-left: 1.2rem;
    margin-bottom: 1.5rem;
  }
}

@media (max-width: 480px) {
  .challenge-title { font-size: 2rem !important; }
  .challenge-desc { font-size: 1rem !important; }
  .challenge-story-block { padding: 2.5rem 5% 2rem !important; }
}

/* ============================================================
   MISSING 480px BREAKPOINTS
============================================================ */
@media (max-width: 480px) {
  /* Solution section */
  .sol-main-title  { font-size: 2rem; }
  .sol-card-title  { font-size: 1.7rem; }
  .sol-card-inner  { padding: 1.5rem; }
  #solution-ecosystem { padding: 4rem 5% 3rem; }

  /* Ecosystem preview */
  .eco-section-title { font-size: 2rem; }
  .ecosystem-preview-section { padding: 4rem 5% 5rem; }

  /* Tech stack */
  .ts-title { font-size: 2.2rem; }
  #tech-stack { padding: 5rem 5% 6rem; }
  .ts-layer-card { padding: 1.2rem; }

  /* Vision page */
  .vis-hero-title { font-size: 2rem; }
  .vis-map-title  { font-size: 1.7rem; }
  .vis-hero { padding: 8rem 5% 4rem; }
  .vis-stats-grid { grid-template-columns: 1fr; }

  /* Ecosystem page */
  .eco-hero-title { font-size: 2rem; }
  .eco-h2 { font-size: 1.8rem; }
  .cta-title { font-size: 2rem; }
  .eco-techstrip-grid { grid-template-columns: 1fr; }
  .eco-interconnect-title { font-size: 2.2rem; }
  #eco-hero { padding: 6rem 5% 3rem; }
  .eco-section { padding: 4rem 5%; }

  /* Contact page */
  .contact-info h1 { font-size: 2.2rem !important; }
}

/* ============================================================
   PERFORMANCE IMPROVEMENTS
   Promote composited elements to their own GPU layer.
============================================================ */
#webgl-canvas           { will-change: transform; }
.hero-core-container    { will-change: opacity; }
.floating-ui            { will-change: transform; }
.challenge-story-block  { will-change: opacity, transform; }
.sol-stage-card         { will-change: opacity, transform; }
.ts-layer               { will-change: opacity, transform; }
.eco-card               { will-change: opacity, transform; }

/* ============================================================
   PREFERS-REDUCED-MOTION
   Pause all decorative animations for users who prefer less motion.
============================================================ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  /* Keep opacity/transform reveal transitions quick but present */
  .sol-header,
  .sol-stage-card,
  .ts-header,
  .ts-layer,
  .eco-card,
  .eco-header-row,
  .eco-text-col,
  .eco-visual-col,
  .vis-keyword {
    transition-duration: 0.2s !important;
  }
}

/* ============================================================
   MOBILE ECOSYSTEM PAGE — STICKY NAV TOUCH SCROLL
============================================================ */
@media (max-width: 768px) {
  .eco-sticky-nav {
    -webkit-overflow-scrolling: touch;
    padding: 0 1rem;
  }
  .eco-nav-link { padding: 0.85rem 1.2rem; font-size: 0.68rem; }
}

/* ============================================================
   GENERAL MOBILE POLISH
============================================================ */
@media (max-width: 768px) {
  /* Ensure no horizontal overflow from any section */
  section { overflow-x: hidden; }

  /* Section tag pill — slightly smaller on mobile */
  .section-tag { font-size: 0.68rem; padding: 0.6rem 1.2rem; }

  /* Button stack on very small screens */
  .cta-buttons { flex-direction: column; align-items: center; }
  .cta-buttons .btn { width: 100%; max-width: 340px; justify-content: center; }

  /* Footer address text */
  .footer-address { font-size: 0.82rem; }
}

/* ============================================================
   WEBKIT FONT SMOOTHING & SCROLL BEHAVIOUR
============================================================ */
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}