:root {
  --bg-deep: #050811;
  --bg-surface: #0a1020;
  --bg-elevated: rgba(16, 24, 46, 0.65);
  --bg-elevated-solid: #10182e;
  --border: rgba(96, 165, 250, 0.14);
  --border-strong: rgba(96, 165, 250, 0.28);
  --text: #f0f4fa;
  --text-muted: #8b9ab8;
  --text-subtle: #56638a;
  --carbon: #00a884;
  --carbon-light: #34d399;
  --green: #4ade80;
  --blue: #60a5fa;
  --blue-soft: #93c5fd;
  --gold: #fbbf24;
  --font-main: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --transition-fast: 0.18s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-medium: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  --container: 1200px;
}

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

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

body {
  font-family: var(--font-main);
  background: var(--bg-deep);
  color: var(--text);
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 10% 10%, rgba(96, 165, 250, 0.25) 0%, transparent 40%),
    radial-gradient(ellipse at 90% 90%, rgba(139, 92, 246, 0.22) 0%, transparent 40%),
    radial-gradient(ellipse at 50% 120%, rgba(0, 168, 132, 0.12) 0%, transparent 45%),
    radial-gradient(ellipse at 30% 70%, rgba(236, 72, 153, 0.08) 0%, transparent 35%),
    radial-gradient(ellipse at 70% 30%, rgba(251, 191, 36, 0.06) 0%, transparent 35%),
    radial-gradient(ellipse at 50% 50%, transparent 0%, #020510 85%);
  pointer-events: none;
  z-index: -1;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 15px 25px, rgba(255,255,255,0.9), transparent),
    radial-gradient(1.5px 1.5px at 45px 65px, rgba(255,255,255,0.7), transparent),
    radial-gradient(1px 1px at 85px 35px, rgba(255,255,255,0.5), transparent),
    radial-gradient(2px 2px at 120px 80px, rgba(255,255,255,0.95), transparent),
    radial-gradient(1px 1px at 160px 45px, rgba(255,255,255,0.6), transparent),
    radial-gradient(1.5px 1.5px at 200px 95px, rgba(255,255,255,0.8), transparent),
    radial-gradient(1px 1px at 240px 20px, rgba(255,255,255,0.4), transparent),
    radial-gradient(2.5px 2.5px at 280px 70px, rgba(255,255,255,0.9), transparent),
    radial-gradient(1px 1px at 320px 105px, rgba(255,255,255,0.7), transparent),
    radial-gradient(1.5px 1.5px at 360px 55px, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 400px 30px, rgba(255,255,255,0.85), transparent),
    radial-gradient(2px 2px at 440px 90px, rgba(255,255,255,0.75), transparent),
    radial-gradient(1px 1px at 480px 60px, rgba(255,255,255,0.6), transparent),
    radial-gradient(1.5px 1.5px at 520px 115px, rgba(255,255,255,0.9), transparent),
    radial-gradient(1px 1px at 560px 40px, rgba(255,255,255,0.5), transparent),
    radial-gradient(2px 2px at 600px 85px, rgba(255,255,255,0.8), transparent),
    radial-gradient(1px 1px at 640px 15px, rgba(255,255,255,0.7), transparent),
    radial-gradient(1.5px 1.5px at 680px 100px, rgba(255,255,255,0.65), transparent),
    radial-gradient(1px 1px at 720px 50px, rgba(255,255,255,0.9), transparent),
    radial-gradient(2px 2px at 760px 25px, rgba(255,255,255,0.75), transparent),
    radial-gradient(1px 1px at 800px 75px, rgba(255,255,255,0.55), transparent),
    radial-gradient(1.5px 1.5px at 840px 110px, rgba(255,255,255,0.85), transparent),
    radial-gradient(1px 1px at 880px 45px, rgba(255,255,255,0.6), transparent),
    radial-gradient(2px 2px at 920px 95px, rgba(255,255,255,0.9), transparent),
    radial-gradient(1px 1px at 960px 30px, rgba(255,255,255,0.7), transparent),
    radial-gradient(1.5px 1.5px at 10px 120px, rgba(255,255,255,0.8), transparent),
    radial-gradient(1px 1px at 70px 140px, rgba(255,255,255,0.5), transparent),
    radial-gradient(2px 2px at 130px 135px, rgba(255,255,255,0.85), transparent),
    radial-gradient(1px 1px at 190px 125px, rgba(255,255,255,0.6), transparent),
    radial-gradient(1.5px 1.5px at 250px 145px, rgba(255,255,255,0.75), transparent),
    radial-gradient(1px 1px at 310px 130px, rgba(255,255,255,0.9), transparent),
    radial-gradient(2px 2px at 370px 150px, rgba(255,255,255,0.7), transparent),
    radial-gradient(1px 1px at 430px 128px, rgba(255,255,255,0.55), transparent),
    radial-gradient(1.5px 1.5px at 490px 142px, rgba(255,255,255,0.8), transparent),
    radial-gradient(1px 1px at 550px 138px, rgba(255,255,255,0.65), transparent),
    radial-gradient(2px 2px at 610px 148px, rgba(255,255,255,0.9), transparent),
    radial-gradient(1px 1px at 670px 132px, rgba(255,255,255,0.5), transparent),
    radial-gradient(1.5px 1.5px at 730px 146px, rgba(255,255,255,0.85), transparent),
    radial-gradient(1px 1px at 790px 136px, rgba(255,255,255,0.7), transparent),
    radial-gradient(2px 2px at 850px 152px, rgba(255,255,255,0.8), transparent),
    radial-gradient(1px 1px at 910px 126px, rgba(255,255,255,0.6), transparent),
    radial-gradient(1.5px 1.5px at 970px 144px, rgba(255,255,255,0.9), transparent);
  background-repeat: repeat;
  background-size: 1000px 180px;
  pointer-events: none;
  z-index: -1;
  animation: starTwinkle 5s ease-in-out infinite;
}

@keyframes starTwinkle {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

::selection {
  background: rgba(0, 168, 132, 0.35);
  color: #fff;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition-fast);
}

ul {
  list-style: none;
}

/* Scroll-panels narrative layout
   =============================== */
.earth-stage {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.earth-container {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: auto;
  cursor: grab;
}

.earth-container:active {
  cursor: grabbing;
}

.earth-container canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.earth-overlay {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 30% 50%, transparent 25%, rgba(3, 8, 18, 0.75) 75%),
    linear-gradient(90deg, rgba(3, 8, 18, 0.6) 0%, transparent 35%, transparent 65%, rgba(3, 8, 18, 0.6) 100%);
  z-index: 1;
  pointer-events: none;
}

.scroll-panels {
  position: relative;
  z-index: 1;
  width: 100%;
  pointer-events: none;
}

.panel {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 1.5rem 4rem;
  pointer-events: none;
}

.panel-content-wrap {
  pointer-events: auto;
}

.panel-home .panel-content-wrap {
  pointer-events: none;
}

.panel-home .hero-left,
.panel-home .scroll-hint {
  pointer-events: auto;
}

.panel-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.panel-cta-text {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.form-note {
  text-align: center;
  margin-top: 0.75rem;
  opacity: 0.7;
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* Split layout: text on one side, Earth visible on the other */
.panel-about .panel-content-wrap,
.panel-news .panel-content-wrap {
  margin-left: auto;
  margin-right: 5cm;
  max-width: 520px;
}

.panel-services .panel-content-wrap,
.panel-cases .panel-content-wrap {
  margin-left: 5cm;
  margin-right: auto;
  max-width: 640px;
}

.panel-contact .panel-content-wrap,
.panel-stats .panel-content-wrap,
.panel-footer .panel-content-wrap {
  margin-left: auto;
  margin-right: auto;
}

.panel-about .services-grid {
  grid-template-columns: repeat(2, 1fr);
}

.panel-news .services-grid {
  grid-template-columns: 1fr;
}

.panel-services .services-grid,
.panel-cases .cases-grid {
  grid-template-columns: repeat(2, 1fr);
}

.panel::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(5, 8, 17, 0.2) 0%, rgba(5, 8, 17, 0.55) 100%);
  pointer-events: none;
  z-index: 0;
}

.panel-home::before {
  background: radial-gradient(ellipse at 50% 50%, rgba(5, 8, 17, 0.15) 0%, rgba(5, 8, 17, 0.45) 100%);
}

.panel-footer {
  min-height: auto;
  background: #03050c;
  border-top: 1px solid var(--border);
  padding: 0;
}

.panel-footer::before {
  display: none;
}

.panel-content-wrap {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 2.5rem;
  background: rgba(5, 8, 17, 0.55);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(14px);
}

.panel-home .panel-content-wrap {
  background: transparent;
  border: none;
  backdrop-filter: none;
  padding: 0 2rem;
  text-align: left;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: calc(100vh - 10rem);
}

/* Loader */
.loader {
  position: fixed;
  inset: 0;
  background: var(--bg-deep);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  gap: 1.5rem;
  transition: opacity 0.8s ease, visibility 0.8s ease;
}

.loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
}

.loader-brand svg {
  width: 36px;
  height: 36px;
  color: var(--carbon);
}

.loader-earth {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: radial-gradient(circle at 30% 30%, rgba(96, 165, 250, 0.25), transparent 55%),
              radial-gradient(circle at 70% 70%, rgba(0, 168, 132, 0.15), transparent 55%),
              rgba(96, 165, 250, 0.06);
  border: 1px solid var(--border);
  position: relative;
  animation: earthRotate 12s linear infinite;
  overflow: hidden;
}

.loader-earth::after {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    90deg,
    transparent,
    transparent 8px,
    rgba(0, 0, 0, 0.15) 9px
  );
}

@keyframes earthRotate {
  from { background-position: 0 0; }
  to { background-position: 160px 0; }
}

.loader-text {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.12em;
}

.loader-bar {
  width: 180px;
  height: 2px;
  background: var(--border);
  border-radius: 1px;
  overflow: hidden;
}

.loader-progress {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--carbon), var(--blue));
  transition: width 0.3s ease;
}

/* Container */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2rem;
}

/* Section headers */
.section-header {
  max-width: 680px;
  margin: 0 auto 3.5rem;
  text-align: center;
}

.section-tag {
  display: inline-block;
  padding: 0.4rem 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--blue-soft);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.25;
  margin-bottom: 0.75rem;
  color: var(--text);
}

.section-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  line-height: 1.8;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.6rem;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  transition: var(--transition-medium);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--carbon) 0%, #0d9488 100%);
  color: #fff;
  box-shadow: 0 6px 20px rgba(0, 168, 132, 0.28);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(0, 168, 132, 0.4);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-outline:hover {
  border-color: var(--border-strong);
  background: var(--bg-elevated);
}

.btn-lg {
  padding: 0.95rem 2rem;
  font-size: 0.95rem;
}

.btn-block {
  width: 100%;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.1rem 0;
  transition: var(--transition-medium);
}

.navbar.scrolled {
  padding: 0.7rem 0;
  background: rgba(5, 8, 17, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--text);
}

.logo-icon {
  width: 40px;
  height: 40px;
  color: var(--carbon);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  overflow: hidden;
}

.logo-icon svg {
  width: 100%;
  height: 100%;
}

.logo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.25rem;
}

.nav-link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-muted);
  position: relative;
  padding: 0.4rem 0;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--carbon);
  transition: var(--transition-medium);
}

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

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.lang-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.5rem 0.9rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  backdrop-filter: blur(12px);
}

.lang-toggle:hover {
  border-color: var(--carbon);
  color: var(--carbon-light);
  background: rgba(0, 168, 132, 0.08);
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text);
  transition: var(--transition-fast);
}

/* Hero panel */
.hero-left {
  max-width: 460px;
  pointer-events: auto;
}

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--blue-soft);
  font-size: 0.78rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-tag i {
  color: var(--carbon);
}

.hero-title {
  font-size: clamp(2.25rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1.25rem;
  color: var(--text);
}

.hero-title span {
  color: var(--carbon-light);
}

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.layer-controls {
  position: fixed;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  pointer-events: auto;
}

.layer-btn {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
  backdrop-filter: blur(12px);
  min-width: 150px;
}

.layer-btn:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

.layer-btn.active {
  border-color: var(--carbon);
  background: rgba(0, 168, 132, 0.12);
  color: var(--carbon-light);
}

.layer-btn i {
  width: 18px;
  text-align: center;
}

.scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-subtle);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.scroll-hint::before {
  content: '';
  width: 1px;
  height: 28px;
  background: linear-gradient(to bottom, var(--carbon), transparent);
  animation: hintPulse 2s ease-in-out infinite;
}

@keyframes hintPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* Side Panel */
.side-panel {
  position: fixed;
  top: 0;
  right: -460px;
  width: 100%;
  max-width: 460px;
  height: 100vh;
  background: rgba(10, 16, 32, 0.96);
  border-left: 1px solid var(--border);
  backdrop-filter: blur(24px);
  z-index: 1100;
  padding: 5rem 2rem 2rem;
  overflow-y: auto;
  transition: right 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.side-panel.active {
  right: 0;
}

.panel-close {
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  width: 38px;
  height: 38px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.panel-close:hover {
  border-color: var(--carbon);
  color: var(--carbon-light);
}

.panel-city {
  font-size: 0.8rem;
  color: var(--carbon-light);
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.panel-title {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.panel-coords {
  display: flex;
  gap: 1rem;
  font-family: 'SF Mono', monospace;
  font-size: 0.8rem;
  color: var(--text-subtle);
  margin-bottom: 1.5rem;
}

.panel-metric {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.metric-box {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1rem;
}

.metric-box .value {
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--gold);
  display: block;
}

.metric-box .label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.panel-desc {
  color: var(--text-muted);
  line-height: 1.85;
  margin-bottom: 1.5rem;
}

.panel-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.panel-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: var(--text);
  font-size: 0.92rem;
}

.panel-list i {
  color: var(--carbon);
  margin-top: 0.3rem;
  font-size: 0.8rem;
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.stat-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: var(--transition-medium);
}

.stat-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
}

.stat-number {
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.stat-number .unit {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 600;
  margin-left: 0.15rem;
}

.stat-label {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* About */
.about {
  background: var(--bg-surface);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-lead {
  font-size: 1.15rem;
  color: var(--text);
  line-height: 1.85;
  margin-bottom: 2rem;
}

.about-steps {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.about-step {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.step-num {
  width: 32px;
  height: 32px;
  background: rgba(0, 168, 132, 0.12);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--carbon-light);
}

.about-step span:last-child {
  font-weight: 600;
  color: var(--text);
}

.about-visual {
  position: relative;
  height: 380px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.earth-viz {
  position: relative;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #1e40af 0%, #0f172a 50%, #020617 100%);
  box-shadow: inset -20px -20px 40px rgba(0,0,0,0.5), 0 0 60px rgba(96, 165, 250, 0.15);
}

.earth-viz::before {
  content: '';
  position: absolute;
  inset: -15px;
  border-radius: 50%;
  background: radial-gradient(circle, transparent 60%, rgba(96, 165, 250, 0.15) 100%);
}

.viz-ring {
  position: absolute;
  border: 1px dashed var(--border);
  border-radius: 50%;
}

.viz-ring-1 { width: 320px; height: 320px; top: -30px; left: -30px; }
.viz-ring-2 { width: 380px; height: 380px; top: -60px; left: -60px; opacity: 0.5; }

.viz-node {
  position: absolute;
  padding: 0.5rem 0.875rem;
  background: var(--bg-elevated-solid);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.75rem;
  color: var(--blue-soft);
  backdrop-filter: blur(8px);
}

.node-core { top: 50%; left: 50%; transform: translate(-50%, -50%); color: var(--gold); }
.node-monitor { top: 12%; right: 5%; }
.node-trade { bottom: 12%; left: 5%; }

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

.service-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  cursor: pointer;
  transition: var(--transition-medium);
}

.service-card:hover,
.service-card.active {
  border-color: var(--carbon);
  background: rgba(0, 168, 132, 0.08);
  transform: translateY(-6px);
}

.service-icon {
  width: 48px;
  height: 48px;
  background: rgba(0, 168, 132, 0.1);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--carbon-light);
  margin-bottom: 1.25rem;
}

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.service-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 1rem;
}

.service-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-subtle);
}

.service-meta a {
  color: var(--carbon-light);
  font-weight: 600;
  transition: var(--transition-fast);
}

.service-meta a:hover {
  color: var(--green);
  text-decoration: underline;
}

/* Solutions */
.solutions {
  background: var(--bg-surface);
}

.timeline {
  display: flex;
  justify-content: space-between;
  position: relative;
  padding-top: 1rem;
}

.timeline::before {
  content: '';
  position: absolute;
  top: 2.25rem;
  left: 5%;
  right: 5%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
}

.timeline-step {
  flex: 1;
  text-align: center;
  position: relative;
  padding: 0 0.5rem;
}

.step-dot {
  width: 44px;
  height: 44px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--blue-soft);
  position: relative;
  z-index: 1;
  transition: var(--transition-medium);
}

.timeline-step:hover .step-dot {
  border-color: var(--carbon);
  color: var(--carbon-light);
  box-shadow: 0 0 20px rgba(0, 168, 132, 0.2);
}

.timeline-step h3 {
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 0.4rem;
}

.timeline-step p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* Cases */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.case-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  transition: var(--transition-medium);
}

.case-card:hover {
  border-color: var(--blue);
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.25);
}

.case-header {
  padding: 1rem 1.25rem;
  background: rgba(96, 165, 250, 0.08);
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.case-city {
  font-weight: 700;
  color: var(--text);
  font-size: 0.95rem;
}

.case-coords {
  font-family: 'SF Mono', monospace;
  font-size: 0.7rem;
  color: var(--text-subtle);
}

.case-body {
  padding: 1.25rem;
}

.case-tag {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  background: rgba(0, 168, 132, 0.1);
  border-radius: 100px;
  font-size: 0.7rem;
  color: var(--carbon-light);
  margin-bottom: 0.6rem;
}

.case-body h3 {
  font-size: 1.05rem;
  color: var(--text);
  margin-bottom: 0.5rem;
  line-height: 1.4;
}

.case-body p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.case-metric {
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.case-metric .value {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--gold);
}

.case-metric .label {
  font-size: 0.75rem;
  color: var(--text-muted);
}

/* News */
.news {
  background: var(--bg-surface);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.news-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: var(--transition-medium);
}

.news-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
}

.news-date {
  font-size: 0.75rem;
  color: var(--text-subtle);
  margin-bottom: 0.75rem;
}

.news-category {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  background: rgba(96, 165, 250, 0.1);
  border-radius: 100px;
  font-size: 0.7rem;
  color: var(--blue-soft);
  margin-bottom: 0.75rem;
}

.news-card h3 {
  font-size: 1.05rem;
  color: var(--text);
  line-height: 1.45;
  margin-bottom: 1rem;
}

.news-link {
  font-size: 0.85rem;
  color: var(--carbon-light);
  font-weight: 600;
}

.news-link i {
  font-size: 0.75rem;
  margin-left: 0.25rem;
  transition: var(--transition-fast);
}

.news-card:hover .news-link i {
  transform: translateX(4px);
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 3rem;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.info-card {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.1rem 1.25rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
}

.info-card:hover {
  border-color: var(--border-strong);
}

.info-icon {
  width: 44px;
  height: 44px;
  background: rgba(96, 165, 250, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--blue-soft);
}

.info-card h4 {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.15rem;
}

.info-card p {
  font-size: 0.95rem;
  color: var(--text);
  font-weight: 500;
}

.contact-form {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  background: rgba(5, 8, 17, 0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-subtle);
}

.form-group select option {
  background: var(--bg-surface);
  color: var(--text);
}

.form-group textarea {
  resize: vertical;
  min-height: 110px;
}

/* Footer */
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .logo {
  margin-bottom: 1rem;
}

.footer-brand p {
  color: var(--text-muted);
  font-size: 0.9rem;
  max-width: 280px;
  margin-bottom: 1.25rem;
}

.social-links {
  display: flex;
  gap: 0.75rem;
}

.social-links a {
  width: 38px;
  height: 38px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.social-links a:hover {
  border-color: var(--carbon);
  color: var(--carbon-light);
  transform: translateY(-2px);
}

.footer-links h4 {
  font-size: 0.95rem;
  color: var(--text);
  margin-bottom: 1.25rem;
  font-weight: 700;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.footer-links a,
.footer-links li {
  color: var(--text-muted);
  font-size: 0.88rem;
}

.footer-links a:hover {
  color: var(--carbon-light);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--text-subtle);
  font-size: 0.78rem;
}

/* Animation states */
[data-animate] {
  opacity: 0;
}

[data-animate="fade-up"] {
  transform: translateY(30px);
}

[data-animate="fade-right"] {
  transform: translateX(-30px);
}

[data-animate="fade-left"] {
  transform: translateX(30px);
}

/* Responsive */
@media (max-width: 1024px) {
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 340px;
    height: 100vh;
    background: rgba(5, 8, 17, 0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    padding: 5.5rem 1.75rem 1.75rem;
    gap: 1.25rem;
    border-left: 1px solid var(--border);
    transition: var(--transition-medium);
  }

  .nav-menu.active {
    right: 0;
  }

  .mobile-toggle {
    display: flex;
  }

  .mobile-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .mobile-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .mobile-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .layer-controls {
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    gap: 0.5rem;
  }

  .layer-btn {
    min-width: auto;
    padding: 0.6rem 0.8rem;
    font-size: 0.75rem;
  }

  .panel-home .panel-content-wrap {
    padding-top: 2rem;
    padding-bottom: 2rem;
    min-height: calc(100vh - 8rem);
    align-items: center;
    text-align: center;
  }

  .hero-left {
    max-width: 100%;
    text-align: center;
  }

  .hero-actions {
    justify-content: center;
  }

  .stats-grid,
  .services-grid,
  .cases-grid,
  .news-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }

  .panel-about .panel-content-wrap,
  .panel-news .panel-content-wrap,
  .panel-services .panel-content-wrap,
  .panel-cases .panel-content-wrap {
    margin-left: auto;
    margin-right: auto;
    max-width: var(--container);
  }

  .timeline {
    flex-direction: column;
    gap: 1.5rem;
  }

  .timeline::before {
    display: none;
  }

  .timeline-step {
    text-align: left;
    display: flex;
    align-items: center;
    gap: 1rem;
  }

  .step-dot {
    margin: 0;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .panel {
    padding: 5rem 1rem 3rem;
  }

  .panel-content-wrap {
    padding: 1.5rem;
  }

  .panel-home .panel-content-wrap {
    padding: 1rem 1.25rem;
    min-height: calc(100vh - 6rem);
    align-items: center;
    text-align: center;
  }

  .container,
  .nav-container {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  .nav-actions .btn {
    display: none;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .layer-controls {
    right: 0.75rem;
    gap: 0.4rem;
  }

  .layer-btn {
    padding: 0.5rem;
  }

  .layer-btn span {
    display: none;
  }

  .stats-grid,
  .services-grid,
  .cases-grid,
  .news-grid,
  .form-row,
  .footer-grid,
  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .panel-about .services-grid,
  .panel-news .services-grid {
    grid-template-columns: 1fr;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 0.5rem;
    text-align: center;
  }

  .about-visual {
    height: 320px;
  }

  .panel-metric {
    grid-template-columns: 1fr;
  }

  .side-panel {
    max-width: 100%;
    right: -100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  [data-animate] {
    opacity: 1;
    transform: none;
  }
}