/* ===== RESET & BASE ===== */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg-deep);
  color: #d0dde6;
  line-height: 1.75;
  font-weight: 400;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

/* ===== CSS VARIABLES ===== */
:root {
  --bg-deep: #060d13;
  --bg-primary: #0a1620;
  --bg-card: #0e1e2c;
  --bg-card-hover: #122738;
  --accent: #e8b730;
  --accent-dim: #c99b1d;
  --accent-glow: rgba(232, 183, 48, 0.12);
  --blue: #1a6fc4;
  --blue-dim: #14507a;
  --blue-glow: rgba(26, 111, 196, 0.15);
  --text-primary: #eaf0f5;
  --text-secondary: #8da2b5;
  --text-muted: #4d6578;
  --green: #34d399;
  --border: rgba(138, 180, 220, 0.08);
  --border-hover: rgba(232, 183, 48, 0.25);
  --radius: 16px;
  --radius-sm: 12px;
  --radius-lg: 24px;
  --max-w: 1320px;
}

/* ===== UTILITIES ===== */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 40px; }
.section { padding: 120px 0; }
.text-accent { color: var(--accent); }
.text-green { color: var(--green); }
.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, #e07a2f 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ===== ANIMATED BACKGROUND ===== */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.bg-grid::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 15% 20%, rgba(26, 111, 196, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 85% 80%, rgba(232, 183, 48, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse 50% 40% at 50% 50%, rgba(26, 111, 196, 0.04) 0%, transparent 60%);
  animation: bg-drift 20s ease-in-out infinite alternate;
}
@keyframes bg-drift {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-20px, 10px) scale(1.05); }
}
.bg-grid::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(26, 111, 196, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 111, 196, 0.04) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 10%, transparent 80%);
}

/* ===== LIGHTNING STREAKS ===== */
.lightning-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.lightning-streak {
  position: absolute;
  width: 2px;
  background: linear-gradient(180deg, transparent, var(--accent), var(--blue), transparent);
  opacity: 0;
  animation: lightning-flash ease-in-out infinite;
  border-radius: 2px;
}
@keyframes lightning-flash {
  0%, 92%, 100% { opacity: 0; }
  94% { opacity: 0.6; }
  95% { opacity: 0; }
  96% { opacity: 0.4; }
  97% { opacity: 0; }
}

/* ===== FLOATING PARTICLES ===== */
.particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.particle {
  position: absolute;
  border-radius: 50%;
  opacity: 0;
  animation: float-particle linear infinite;
}
.particle--dot {
  background: var(--accent);
}
.particle--bolt {
  width: 3px !important;
  height: 12px !important;
  background: linear-gradient(180deg, var(--accent), transparent);
  border-radius: 1px;
}
@keyframes float-particle {
  0% { opacity: 0; transform: translateY(100vh) scale(0); }
  10% { opacity: 0.5; }
  90% { opacity: 0.5; }
  100% { opacity: 0; transform: translateY(-10vh) scale(1); }
}

/* ===== NAVBAR ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 16px 0;
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}
.navbar::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 13, 19, 0.8) 0%, rgba(6, 13, 19, 0) 100%);
  pointer-events: none;
  transition: opacity 0.4s;
}
.navbar.scrolled {
  padding: 10px 0;
}
.navbar.scrolled::before {
  opacity: 0;
}
.navbar.scrolled::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10, 22, 32, 0.92) 0%, rgba(14, 30, 44, 0.88) 50%, rgba(10, 22, 32, 0.92) 100%);
  backdrop-filter: blur(24px) saturate(1.4);
  -webkit-backdrop-filter: blur(24px) saturate(1.4);
  border-bottom: 1px solid rgba(26, 111, 196, 0.12);
  z-index: -1;
}
.navbar.scrolled .nav-glow {
  opacity: 1;
}
.nav-glow {
  position: absolute;
  bottom: -1px;
  left: 10%;
  right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--blue), var(--accent), transparent);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
}
.logo-img {
  height: 32px;
  width: auto;
}
.logo-divider {
  width: 1px;
  height: 22px;
  background: var(--text-muted);
  opacity: 0.3;
}
.logo-sub {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
  position: relative;
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a:not(.btn)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--blue));
  border-radius: 2px;
  transform: scaleX(0);
  transition: transform 0.25s ease;
}
.nav-links a:not(.btn):hover::after {
  transform: scaleX(1);
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 1rem;
  transition: all 0.25s ease;
  cursor: pointer;
  border: none;
  letter-spacing: -0.01em;
}
.btn-primary {
  background: var(--accent);
  color: var(--bg-deep);
  box-shadow: 0 4px 20px rgba(232, 183, 48, 0.25);
}
.btn-primary:hover {
  background: #f0c240;
  box-shadow: 0 6px 32px rgba(232, 183, 48, 0.35);
  transform: translateY(-2px);
}
.btn-outline {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--border-hover);
  color: var(--accent);
  background: var(--accent-glow);
}
.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 100px;
}
.btn-ghost:hover {
  border-color: var(--border-hover);
  color: var(--accent);
}

/* ===== MOBILE MENU ===== */
.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.mobile-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text-secondary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 80px;
  background: linear-gradient(180deg, rgba(14, 30, 44, 0.4) 0%, rgba(10, 22, 32, 0.2) 60%, transparent 100%);
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 70% 40%, rgba(26, 111, 196, 0.14) 0%, transparent 60%),
    radial-gradient(ellipse 50% 40% at 65% 50%, rgba(232, 183, 48, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse 80% 60% at 30% 60%, rgba(26, 111, 196, 0.06) 0%, transparent 60%);
  pointer-events: none;
  z-index: 0;
}
.hero::after {
  content: '';
  position: absolute;
  top: 10%;
  right: 5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(26, 111, 196, 0.1) 0%, rgba(232, 183, 48, 0.04) 40%, transparent 70%);
  pointer-events: none;
  z-index: 0;
  filter: blur(40px);
}
.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border: 1px solid rgba(52, 211, 153, 0.15);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--green);
  font-weight: 500;
  margin-bottom: 32px;
  letter-spacing: 0.02em;
  background: rgba(52, 211, 153, 0.05);
}
.hero-badge .pulse {
  width: 8px;
  height: 8px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse 2.5s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(52, 211, 153, 0.4); }
  50% { opacity: 0.6; box-shadow: 0 0 0 8px rgba(52, 211, 153, 0); }
}
.hero h1 {
  font-size: clamp(2.75rem, 5.5vw, 4rem);
  font-weight: 800;
  line-height: 1.08;
  margin-bottom: 28px;
  letter-spacing: -0.035em;
  color: var(--text-primary);
}
.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 640px;
  line-height: 1.7;
  font-weight: 400;
}
.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

/* ===== HERO ORB ===== */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 460px;
}
.network-canvas {
  position: absolute;
  inset: -120px;
  width: calc(100% + 240px);
  height: calc(100% + 240px);
  z-index: 0;
  pointer-events: none;
}
.hero-orb {
  width: 420px;
  height: 420px;
  position: relative;
  z-index: 1;
}
.orb-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px dashed;
  animation: spin linear infinite, ring-breathe ease-in-out infinite;
}
.orb-ring:nth-child(1) {
  inset: 0;
  border-color: rgba(232, 183, 48, 0.2);
  border-width: 1.5px;
  border-style: dashed;
  animation-duration: 80s, 6s;
}
.orb-ring:nth-child(2) {
  inset: 35px;
  border-color: rgba(26, 111, 196, 0.18);
  border-style: dotted;
  animation-duration: 60s, 8s;
  animation-direction: reverse, normal;
}
.orb-ring:nth-child(3) {
  inset: 70px;
  border-color: rgba(232, 183, 48, 0.14);
  border-width: 1.5px;
  border-style: dashed;
  animation-duration: 100s, 7s;
  animation-delay: 0s, 2s;
}
.orb-ring:nth-child(4) {
  inset: 105px;
  border-color: rgba(26, 111, 196, 0.1);
  border-style: dotted;
  animation-duration: 70s, 5s;
  animation-direction: reverse, normal;
  animation-delay: 0s, 1s;
}
@keyframes spin { 100% { transform: rotate(360deg); } }
@keyframes ring-breathe {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}
.orb-center {
  position: absolute;
  inset: 130px;
  background: radial-gradient(circle, rgba(232, 183, 48, 0.15) 0%, rgba(26, 111, 196, 0.05) 50%, transparent 70%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: glow-pulse 4s ease-in-out infinite;
  transition: filter 0.6s ease;
}
@keyframes glow-pulse {
  0%, 100% { filter: brightness(1); }
  50% { filter: brightness(1.5); }
}
.orb-center svg {
  width: 72px;
  height: 72px;
  color: var(--accent);
  filter: drop-shadow(0 0 32px rgba(232, 183, 48, 0.4));
}
.orb-node {
  position: absolute;
  width: 7px;
  height: 7px;
  background: var(--accent);
  border-radius: 50%;
  opacity: 0.7;
  box-shadow: 0 0 20px rgba(232, 183, 48, 0.5), 0 0 40px rgba(232, 183, 48, 0.2);
  animation: node-pulse 3s ease-in-out infinite;
  transition: box-shadow 0.6s ease, transform 0.6s ease, opacity 0.6s ease;
}
.orb-node:nth-child(7) { animation-delay: 0.5s; }
.orb-node:nth-child(8) { animation-delay: 1s; }
.orb-node:nth-child(9) { animation-delay: 1.5s; }
.orb-node:nth-child(10) { animation-delay: 2s; }
@keyframes node-pulse {
  0%, 100% { opacity: 0.7; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.4); }
}
.orb-node:nth-child(6) { top: 8%; left: 50%; }
.orb-node:nth-child(7) { top: 50%; right: 3%; }
.orb-node:nth-child(8) { bottom: 12%; left: 18%; }
.orb-node:nth-child(9) { top: 28%; left: 6%; }
.orb-node:nth-child(10) { bottom: 28%; right: 10%; }

/* ===== STATS ===== */
.stats-bar {
  position: relative;
  z-index: 1;
  padding: 0 0 40px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.stat-card {
  text-align: center;
  padding: 36px 24px;
  background: var(--bg-primary);
  transition: all 0.3s ease;
  position: relative;
}
.stat-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--blue), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.stat-card:hover { background: var(--bg-card); }
.stat-card:hover::after { opacity: 0.6; }
.stat-value {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
  background: linear-gradient(135deg, var(--accent) 0%, #e07a2f 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.stats-caption {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  opacity: 0.7;
  margin-top: 18px;
  letter-spacing: 0.03em;
  font-weight: 500;
}

/* ===== SECTION HEADERS ===== */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent-dim);
  margin-bottom: 16px;
  padding: 6px 16px;
  border: 1px solid var(--border-hover);
  border-radius: 100px;
  background: var(--accent-glow);
}
.section-header h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 20px;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}
.section-header p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 720px;
  margin: 0 auto;
  line-height: 1.7;
  font-weight: 400;
}

/* ===== WHAT IS LIGHTNING ===== */
.what-is {
  background: var(--bg-deep);
  position: relative;
}
.what-is-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 80px;
  align-items: center;
}
.what-is-visual {
  position: relative;
}
.network-diagram {
  width: 100%;
  aspect-ratio: 1;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}
.network-diagram canvas {
  width: 100%;
  height: 100%;
  display: block;
}
.what-is-text .section-tag {
  margin-bottom: 12px;
}
.what-is-text h2 {
  font-size: clamp(2rem, 3.5vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 24px;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}
.what-is-text p {
  color: var(--text-secondary);
  font-size: 1.15rem;
  margin-bottom: 16px;
  line-height: 1.7;
  font-weight: 400;
}
.what-is-text .highlight-box {
  border-left: 3px solid var(--accent);
  padding: 18px 24px;
  margin-top: 28px;
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-weight: 400;
  background: linear-gradient(135deg, var(--accent-glow) 0%, var(--blue-glow) 100%);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* ===== BENEFITS ===== */
.benefits {
  background: var(--bg-primary);
  position: relative;
}
.benefits-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.benefit-card {
  padding: 40px 32px;
  background: var(--bg-deep);
  transition: all 0.35s ease;
  position: relative;
}
.benefit-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-glow) 0%, var(--blue-glow) 60%, transparent 100%);
  opacity: 0;
  transition: opacity 0.35s;
  pointer-events: none;
}
.benefit-card:hover {
  background: var(--bg-card);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}
.benefit-card:hover::after { opacity: 1; }
.benefit-number {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-dim);
  letter-spacing: 0.06em;
  margin-bottom: 18px;
  font-variant-numeric: tabular-nums;
}
.benefit-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.benefit-card p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-weight: 400;
}

/* ===== HOW IT WORKS ===== */
.how-it-works {
  background: var(--bg-deep);
  position: relative;
}

/* --- Zigzag flow layout --- */
.steps-flow {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.step-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  padding: 24px 0;
}
.step-row--reverse {
  direction: rtl;
}
.step-row--reverse > * {
  direction: ltr;
}
.step-row--reverse .step-text {
  text-align: right;
}
.step-text {
  padding: 8px 0;
}
.step-number {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 16px;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(135deg, var(--accent) 0%, #e07a2f 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.step-row h3 {
  font-size: 1.4rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.step-row p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.75;
  font-weight: 400;
  max-width: 480px;
}
.step-row--reverse p {
  margin-left: auto;
}

/* Staggered reveal */
.step-row.reveal { transition-duration: 0.8s; }
.step-row.reveal.reveal-delay-1 { transition-delay: 0.35s; }
.step-row.reveal.reveal-delay-2 { transition-delay: 0.7s; }

/* --- Connectors --- */
.step-connector {
  display: flex;
  justify-content: center;
  height: 60px;
  margin: -8px 0;
  position: relative;
}
.step-connector svg {
  width: 100%;
  max-width: 600px;
  height: 100%;
}
.sv-connector-path {
  stroke-dasharray: 200;
  stroke-dashoffset: 200;
  animation: sv-connector-draw 1.5s ease-out forwards paused;
}
.step-connector.visible .sv-connector-path {
  animation-play-state: running;
}
@keyframes sv-connector-draw {
  0% { stroke-dashoffset: 200; }
  100% { stroke-dashoffset: 0; }
}

/* ===== STEP VISUALS (SVG Animations) ===== */
.step-visual {
  width: 100%;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.step-visual svg {
  width: 100%;
  height: 100%;
  max-height: 180px;
}

/* --- Shared node breathing --- */
@keyframes sv-breathe {
  0%, 100% { opacity: 0.8; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.12); }
}
.sv-node-glow {
  animation: sv-glow-pulse 3s ease-in-out infinite paused;
  transform-origin: center;
}
@keyframes sv-glow-pulse {
  0%, 100% { opacity: 0.1; }
  50% { opacity: 0.25; }
}
.step-row.visible .sv-node-glow { animation-play-state: running; }

/* ===== Step 1: Open a Channel ===== */
.sv-channel-line {
  stroke-dasharray: 114;
  stroke-dashoffset: 114;
  animation: sv-draw-channel 1.8s ease-out forwards paused;
}
.step-row.visible .sv-channel-line {
  animation-play-state: running;
  animation-delay: 0.6s;
}

@keyframes sv-draw-channel {
  0% { stroke-dashoffset: 114; opacity: 0.4; }
  80% { stroke-dashoffset: 0; opacity: 0.7; }
  100% { stroke-dashoffset: 0; opacity: 0.5; }
}

.sv-channel-glow {
  opacity: 0;
  animation: sv-channel-solidify 1.2s ease-out forwards paused;
}
.step-row.visible .sv-channel-glow {
  animation-play-state: running;
  animation-delay: 2.2s;
}

@keyframes sv-channel-solidify {
  0% { opacity: 0; }
  50% { opacity: 0.6; }
  100% { opacity: 0.35; }
}

.sv-lock {
  opacity: 0;
  animation: sv-lock-appear 0.8s ease-out forwards paused;
}
.step-row.visible .sv-lock {
  animation-play-state: running;
  animation-delay: 2.8s;
}

@keyframes sv-lock-appear {
  0% { opacity: 0; }
  60% { opacity: 1; }
  100% { opacity: 0.85; }
}

.sv-lock-shackle {
  transform-box: fill-box;
  transform-origin: left bottom;
  animation: sv-shackle-open 1s ease-in-out forwards paused;
  animation-delay: 3.6s;
}
.step-row.visible .sv-lock-shackle {
  animation-play-state: running;
}

@keyframes sv-shackle-open {
  0% { transform: translateY(0) rotate(0deg); }
  40% { transform: translateY(-3px) rotate(0deg); }
  100% { transform: translateY(-3px) rotate(-25deg); }
}

/* ===== Step 2: Transact Instantly - packets ===== */
.sv-packet {
  opacity: 0;
}
.sv-packet-r1 {
  animation: sv-pkt-right 1.2s ease-in-out infinite paused, sv-pkt-fade-in 0.3s ease-out forwards paused;
}
.sv-packet-r2 {
  animation: sv-pkt-right 1.5s ease-in-out infinite paused, sv-pkt-fade-in 0.3s ease-out forwards paused;
}
.sv-packet-l1 {
  animation: sv-pkt-left 1.3s ease-in-out infinite paused, sv-pkt-fade-in 0.3s ease-out forwards paused;
}
.step-row.visible .sv-packet-r1 {
  animation-play-state: running;
  animation-delay: 0.5s, 0.5s;
}
.step-row.visible .sv-packet-r2 {
  animation-play-state: running;
  animation-delay: 1.0s, 1.0s;
}
.step-row.visible .sv-packet-l1 {
  animation-play-state: running;
  animation-delay: 0.8s, 0.8s;
}

@keyframes sv-pkt-right {
  0% { transform: translateX(0); opacity: 0.3; }
  10% { opacity: 0.9; }
  90% { opacity: 0.9; }
  100% { transform: translateX(154px); opacity: 0.3; }
}
@keyframes sv-pkt-left {
  0% { transform: translateX(0); opacity: 0.3; }
  10% { opacity: 0.9; }
  90% { opacity: 0.9; }
  100% { transform: translateX(-154px); opacity: 0.3; }
}
@keyframes sv-pkt-fade-in {
  0% { opacity: 0; }
  100% { opacity: 0.9; }
}

.sv-bolt-icon {
  animation: sv-bolt-pulse 2s ease-in-out infinite paused;
}
.step-row.visible .sv-bolt-icon {
  animation-play-state: running;
}
@keyframes sv-bolt-pulse {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 0.7; }
}

/* ===== Step 3: Settle On-Chain ===== */

/* Phase 1: Channel draws in between nodes */
.sv-settle-channel-draw {
  stroke-dasharray: 78;
  stroke-dashoffset: 78;
  animation: sv-settle-draw 1.2s ease-out forwards paused;
}
.step-row.visible .sv-settle-channel-draw {
  animation-play-state: running;
  animation-delay: 0.3s;
}
@keyframes sv-settle-draw {
  0% { stroke-dashoffset: 78; opacity: 0.3; }
  80% { stroke-dashoffset: 0; opacity: 0.6; }
  100% { stroke-dashoffset: 0; opacity: 0.4; }
}

/* Phase 2: Channel dissolves */
.sv-settle-channel {
  opacity: 0.3;
  animation: sv-channel-dissolve 1.5s ease-out forwards paused;
}
.step-row.visible .sv-settle-channel {
  animation-play-state: running;
  animation-delay: 2.0s;
}
@keyframes sv-channel-dissolve {
  0% { opacity: 0.3; stroke-dashoffset: 0; }
  60% { opacity: 0.1; }
  100% { opacity: 0; stroke-dashoffset: 78; }
}

/* Phase 2: Vertical settle line draws from channel down to blockchain */
.sv-settle-line {
  stroke-dasharray: 55;
  stroke-dashoffset: 55;
  animation: sv-settle-line-draw 1.2s ease-out forwards paused;
}
.step-row.visible .sv-settle-line {
  animation-play-state: running;
  animation-delay: 1.8s;
}
@keyframes sv-settle-line-draw {
  0% { stroke-dashoffset: 55; opacity: 0; }
  20% { opacity: 0.6; }
  100% { stroke-dashoffset: 0; opacity: 0.4; }
}

.sv-settle-energy {
  opacity: 0;
  animation: sv-energy-flow 1.2s ease-in-out forwards paused;
}
.step-row.visible .sv-settle-energy {
  animation-play-state: running;
  animation-delay: 2.2s;
}
@keyframes sv-energy-flow {
  0% { opacity: 0; transform: translateY(0); }
  15% { opacity: 0.9; }
  85% { opacity: 0.8; }
  100% { opacity: 0; transform: translateY(55px); }
}

.sv-blockchain {
  opacity: 0;
  animation: sv-chain-appear 1.2s ease-out forwards paused;
}
.step-row.visible .sv-blockchain {
  animation-play-state: running;
  animation-delay: 1.8s;
}
@keyframes sv-chain-appear {
  0% { opacity: 0; transform: translateY(8px); }
  100% { opacity: 1; transform: translateY(0); }
}

.sv-block-settled {
  animation: sv-block-glow 2.5s ease-in-out infinite paused;
}
.step-row.visible .sv-block-settled {
  animation-play-state: running;
  animation-delay: 2.8s;
}
@keyframes sv-block-glow {
  0%, 100% { filter: drop-shadow(0 0 0px transparent); }
  50% { filter: drop-shadow(0 0 6px rgba(232,183,48,0.5)); }
}

.sv-block-check {
  stroke-dasharray: 30;
  stroke-dashoffset: 30;
  animation: sv-check-draw 0.6s ease-out forwards paused;
}
.step-row.visible .sv-block-check {
  animation-play-state: running;
  animation-delay: 3.0s;
}
@keyframes sv-check-draw {
  0% { stroke-dashoffset: 30; }
  100% { stroke-dashoffset: 0; }
}

/* ===== Step 2 & 3: extra delays to match staggered reveal ===== */
.step-2.visible .sv-node-glow { animation-delay: 0.35s; }
.step-2.visible .sv-packet-r1 { animation-delay: 0.85s, 0.85s; }
.step-2.visible .sv-packet-r2 { animation-delay: 1.35s, 1.35s; }
.step-2.visible .sv-packet-l1 { animation-delay: 1.15s, 1.15s; }
.step-2.visible .sv-bolt-icon { animation-delay: 0.35s; }

.step-3.visible .sv-node-glow { animation-delay: 0.7s; }
.step-3.visible .sv-settle-channel-draw { animation-delay: 1.0s; }
.step-3.visible .sv-settle-channel { animation-delay: 2.7s; }
.step-3.visible .sv-settle-line { animation-delay: 2.5s; }
.step-3.visible .sv-settle-energy { animation-delay: 2.9s; }
.step-3.visible .sv-blockchain { animation-delay: 3.2s; }
.step-3.visible .sv-block-settled { animation-delay: 4.0s; }
.step-3.visible .sv-block-check { animation-delay: 4.2s; }

/* ===== NODE CONNECTION ===== */
.node-section {
  background: var(--bg-primary);
  position: relative;
}
/* Node tabs */
.node-tabs-wrap {
  max-width: 920px;
  margin: 0 auto;
}
.node-tabs {
  display: flex;
  gap: 0;
  margin-bottom: -1px;
  position: relative;
  z-index: 3;
}
.node-tab {
  flex: 1;
  display: grid;
  grid-template-columns: 34px 1fr auto;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  background: rgba(8, 20, 32, 0.6);
  border: 1px solid rgba(26, 111, 196, 0.1);
  border-bottom: 1px solid rgba(26, 111, 196, 0.15);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  cursor: pointer;
  transition: all 0.3s ease;
  color: var(--text-muted);
  position: relative;
}
.node-tab:first-child {
  margin-right: 4px;
}
.node-tab:hover {
  background: rgba(10, 26, 42, 0.8);
  border-color: rgba(26, 111, 196, 0.2);
}
.node-tab.active {
  background:
    radial-gradient(ellipse 80% 80% at 50% 100%, rgba(26, 111, 196, 0.08) 0%, transparent 70%),
    linear-gradient(160deg, #081420 0%, #0a1a2a 50%, #0c1e30 100%);
  border-color: rgba(26, 111, 196, 0.15);
  border-bottom-color: transparent;
  color: var(--text-primary);
}
.node-tab.active::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0;
}
.node-tab-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--accent-glow) 0%, var(--blue-glow) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: border-color 0.3s;
}
.node-tab.active .node-tab-icon {
  border-color: var(--border-hover);
}
.node-tab-icon svg {
  width: 18px;
  height: 18px;
  color: var(--accent);
  opacity: 0.5;
  transition: opacity 0.3s;
}
.node-tab.active .node-tab-icon svg {
  opacity: 1;
}
.node-tab-info {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.node-tab-name {
  font-size: 1.05rem;
  font-weight: 600;
  white-space: nowrap;
  transition: color 0.3s;
}
.node-tab.active .node-tab-name {
  color: var(--text-primary);
}
.node-tab-status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--green);
  justify-self: end;
  white-space: nowrap;
  opacity: 0.5;
  transition: opacity 0.3s;
}
.node-tab.active .node-tab-status {
  opacity: 1;
}
.node-tab-status .dot {
  width: 7px;
  height: 7px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse 2.5s ease-in-out infinite;
  transition: background 0.3s;
}
.node-tab-status.offline .dot {
  background: #ef4444;
  animation: none;
}
.node-tab-status.offline {
  color: #ef4444;
}
/* Node panels */
.node-panel {
  display: none;
}
.node-panel.active {
  display: block;
  animation: node-panel-in 0.3s ease;
}
@keyframes node-panel-in {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}
.node-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(26, 111, 196, 0.1);
}
.node-panel-header h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}
.node-type-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border-radius: 4px;
  vertical-align: middle;
  margin-left: 6px;
}
.node-type-label--tor {
  background: rgba(139, 92, 246, 0.15);
  color: #a78bfa;
  border: 1px solid rgba(139, 92, 246, 0.25);
}
.node-type-label--clearnet {
  background: rgba(52, 211, 153, 0.12);
  color: var(--green);
  border: 1px solid rgba(52, 211, 153, 0.25);
}
.node-ranks {
  display: flex;
  gap: 24px;
}
.node-rank {
  display: flex;
  align-items: center;
  gap: 8px;
}
.node-rank-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}
.node-rank-value {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.node-rank-change {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--green);
}
.node-card {
  border: 1px solid rgba(26, 111, 196, 0.15);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  overflow: hidden;
  background:
    radial-gradient(ellipse 80% 50% at 20% 0%, rgba(26, 111, 196, 0.1) 0%, transparent 60%),
    radial-gradient(ellipse 60% 60% at 80% 100%, rgba(26, 111, 196, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse 50% 40% at 50% 50%, rgba(232, 183, 48, 0.03) 0%, transparent 60%),
    linear-gradient(160deg, #081420 0%, #0a1a2a 30%, #0c1e30 60%, #081822 100%);
  position: relative;
  box-shadow:
    0 4px 40px rgba(0, 0, 0, 0.4),
    0 0 80px rgba(26, 111, 196, 0.06),
    inset 0 1px 0 rgba(26, 111, 196, 0.1);
}
.node-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle 200px at 10% 20%, rgba(26, 111, 196, 0.08) 0%, transparent 100%),
    radial-gradient(circle 200px at 90% 80%, rgba(26, 111, 196, 0.06) 0%, transparent 100%);
  animation: node-bg-drift 12s ease-in-out infinite alternate;
  pointer-events: none;
  z-index: 0;
}
@keyframes node-bg-drift {
  0% { opacity: 0.6; transform: scale(1); }
  100% { opacity: 1; transform: scale(1.1); }
}
@keyframes gradient-shift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
.node-body {
  padding: 32px 36px;
  position: relative;
  z-index: 1;
}
.pubkey-section {
  margin-bottom: 28px;
}
.pubkey-label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 8px;
}
.pubkey-value {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: rgba(10, 22, 32, 0.6);
  border: 1px solid rgba(26, 111, 196, 0.12);
  border-radius: var(--radius-sm);
  font-family: 'SF Mono', 'Fira Code', 'Fira Mono', monospace;
  font-size: 0.85rem;
  color: var(--accent-dim);
  word-break: break-all;
  line-height: 1.5;
  cursor: pointer;
  transition: all 0.2s;
}
.pubkey-value:hover {
  border-color: var(--border-hover);
  background: var(--accent-glow);
}
.pubkey-hint {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  transition: color 0.2s;
}
.pubkey-value:hover .pubkey-hint {
  color: var(--accent);
}
.pubkey-value.copied .pubkey-hint {
  color: var(--green);
}
.copy-btn {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(26, 111, 196, 0.06);
  border: 1px solid rgba(26, 111, 196, 0.12);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.2s;
  color: var(--text-muted);
}
.copy-btn:hover {
  border-color: var(--border-hover);
  color: var(--accent);
  background: var(--accent-glow);
}
.copied .copy-btn {
  width: auto;
  padding: 0 10px;
  gap: 6px;
  color: var(--green);
  border-color: rgba(52, 211, 153, 0.25);
  background: rgba(52, 211, 153, 0.08);
}
.copied-hint {
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
}
.node-info-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(26, 111, 196, 0.08);
  border: 1px solid rgba(26, 111, 196, 0.1);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.node-info-item {
  padding: 14px;
  background: rgba(10, 22, 32, 0.5);
  backdrop-filter: blur(4px);
}
.node-info-item .label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  font-weight: 500;
  margin-bottom: 6px;
}
.node-info-item .value {
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text-primary);
}
/* Node type badges */
.node-type {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 3px 10px 3px 7px;
  border-radius: 20px;
  margin-top: 4px;
}
.node-type--tor {
  background: rgba(139, 92, 246, 0.15);
  color: #a78bfa;
  border: 1px solid rgba(139, 92, 246, 0.25);
}
.node-type--clearnet {
  background: rgba(52, 211, 153, 0.12);
  color: var(--green);
  border: 1px solid rgba(52, 211, 153, 0.25);
}
/* Tab badges row */
/* Selling point badge (matches node-type style) */
.node-selling-point {
  display: inline-flex;
  align-items: center;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 3px 10px 3px 7px;
  border-radius: 20px;
  white-space: nowrap;
  opacity: 0.6;
  transition: opacity 0.3s;
}
.node-tab.active .node-selling-point {
  opacity: 1;
}
.node-selling-point--tor {
  background: rgba(139, 92, 246, 0.15);
  color: #a78bfa;
  border: 1px solid rgba(139, 92, 246, 0.25);
}
.node-selling-point--clearnet {
  background: rgba(52, 211, 153, 0.12);
  color: var(--green);
  border: 1px solid rgba(52, 211, 153, 0.25);
}
/* Node external links */
.node-links {
  display: flex;
  gap: 16px;
  margin-top: 24px;
}
.node-ext-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-muted);
  transition: color 0.2s;
  font-weight: 500;
}
.node-ext-link:hover {
  color: var(--accent);
}
.node-ext-link svg {
  opacity: 0.6;
  transition: opacity 0.2s;
}
.node-ext-link:hover svg {
  opacity: 1;
}
/* Node footer (shared below both cards) */
.node-footer-section {
  max-width: 1100px;
  margin: 32px auto 0;
  padding: 20px 28px;
  border-top: 1px solid rgba(26, 111, 196, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.node-footer-section p {
  color: var(--text-muted);
  font-size: 0.95rem;
}
.node-footer-section p a {
  color: var(--accent);
  font-weight: 500;
  transition: color 0.2s;
}
.node-footer-section p a:hover {
  color: var(--text-primary);
}

/* ===== USE CASES ===== */
.use-cases {
  background: var(--bg-deep);
  position: relative;
}
.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.use-case-card {
  padding: 36px;
  background: var(--bg-primary);
  transition: all 0.35s ease;
  position: relative;
}
.use-case-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-glow) 0%, var(--blue-glow) 60%, transparent 100%);
  opacity: 0;
  transition: opacity 0.35s;
  pointer-events: none;
}
.use-case-card:hover {
  background: var(--bg-card);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}
.use-case-card:hover::after { opacity: 1; }
.use-case-number {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--accent-dim);
  letter-spacing: 0.06em;
  margin-bottom: 16px;
  font-variant-numeric: tabular-nums;
}
.use-case-card h3 {
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.use-case-card p {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  font-weight: 400;
}

/* ===== CTA SECTION ===== */
.cta-section {
  background: var(--bg-primary);
  padding: 120px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 50%, rgba(232, 183, 48, 0.06) 0%, transparent 60%),
    radial-gradient(ellipse 40% 30% at 30% 70%, rgba(26, 111, 196, 0.04) 0%, transparent 50%);
  pointer-events: none;
}
.cta-content {
  text-align: center;
  position: relative;
  z-index: 1;
}
.cta-content h2 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 800;
  margin-bottom: 20px;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}
.cta-content p {
  font-size: 1.2rem;
  color: var(--text-secondary);
  margin-bottom: 40px;
  max-width: 660px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
  font-weight: 400;
}
.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== BTC YIELD SECTION ===== */
.yield-section {
  background: var(--bg-deep);
  position: relative;
  overflow: hidden;
}
.yield-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 40% at 20% 30%, rgba(232, 183, 48, 0.05) 0%, transparent 60%),
    radial-gradient(ellipse 40% 50% at 80% 70%, rgba(26, 111, 196, 0.04) 0%, transparent 50%);
  pointer-events: none;
}
.yield-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  position: relative;
  z-index: 1;
}
.yield-content h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.4rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 24px;
}
.yield-lead {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}
.yield-body {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}
.yield-note {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-style: italic;
  margin-bottom: 24px;
}
.yield-min {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--accent-glow);
  border: 1px solid rgba(232, 183, 48, 0.2);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
}
/* Yield form */
.yield-form-wrap {
  position: sticky;
  top: 100px;
}
.yield-form {
  background:
    radial-gradient(ellipse 80% 50% at 20% 0%, rgba(26, 111, 196, 0.08) 0%, transparent 60%),
    linear-gradient(160deg, #081420 0%, #0a1a2a 40%, #0c1e30 70%, #081822 100%);
  border: 1px solid rgba(26, 111, 196, 0.15);
  border-radius: var(--radius-lg);
  padding: 36px;
  position: relative;
  box-shadow:
    0 4px 40px rgba(0, 0, 0, 0.3),
    0 0 60px rgba(26, 111, 196, 0.04);
}
.yield-form::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--blue), var(--accent));
  background-size: 200% 100%;
  animation: gradient-shift 6s ease infinite;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}
.yield-form h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 24px;
  letter-spacing: -0.01em;
  text-align: center;
}
.form-group {
  margin-bottom: 18px;
}
.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  background: rgba(10, 22, 32, 0.6);
  border: 1px solid rgba(26, 111, 196, 0.12);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.95rem;
  transition: border-color 0.2s, background 0.2s;
  outline: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.5;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--border-hover);
  background: rgba(10, 22, 32, 0.8);
}
.form-group textarea {
  resize: vertical;
  min-height: 80px;
}
.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 20px;
}
.form-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--accent);
  cursor: pointer;
}
.form-checkbox label {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  cursor: pointer;
}
.yield-submit {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  text-align: center;
}
.yield-disclaimer {
  font-size: 0.75rem;
  color: var(--text-muted);
  opacity: 0.6;
  margin-top: 14px;
  line-height: 1.6;
  text-align: center;
}
/* Zammad form overrides for dark theme */
#zammad-yield-form .form-group {
  margin-bottom: 18px;
}
#zammad-yield-form label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 6px;
}
#zammad-yield-form .form-control,
#zammad-yield-form input[type="text"],
#zammad-yield-form input[type="email"],
#zammad-yield-form textarea {
  width: 100%;
  padding: 10px 14px;
  background: rgba(10, 22, 32, 0.6);
  border: 1px solid rgba(26, 111, 196, 0.12);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 0.95rem;
  transition: border-color 0.2s, background 0.2s;
  outline: none;
  box-sizing: border-box;
}
#zammad-yield-form .form-control::placeholder,
#zammad-yield-form input::placeholder,
#zammad-yield-form textarea::placeholder {
  color: var(--text-muted);
  opacity: 0.5;
}
#zammad-yield-form .form-control:focus,
#zammad-yield-form input:focus,
#zammad-yield-form textarea:focus {
  border-color: var(--border-hover);
  background: rgba(10, 22, 32, 0.8);
}
#zammad-yield-form textarea {
  resize: vertical;
  min-height: 80px;
}
#zammad-yield-form button[type="submit"],
#zammad-yield-form input[type="submit"],
.yield-form button[type="submit"],
.yield-form input[type="submit"] {
  width: 100%;
  padding: 14px;
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  cursor: pointer;
  text-align: center !important;
  display: block !important;
  background: linear-gradient(135deg, var(--accent) 0%, #d4a428 100%);
  color: #000;
  border: none;
  border-radius: var(--radius-sm);
  transition: all 0.3s ease;
  font-family: 'Inter', system-ui, sans-serif;
  margin-top: 8px;
}
#zammad-yield-form button[type="submit"]:hover,
#zammad-yield-form input[type="submit"]:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(232, 183, 48, 0.3);
}
#zammad-yield-form .form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin: 18px 0;
}
#zammad-yield-form .form-checkbox input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--accent);
  cursor: pointer;
}
#zammad-yield-form .form-checkbox label {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  cursor: pointer;
  text-transform: none;
  letter-spacing: 0;
  font-weight: 400;
}
/* Zammad thank-you message */
#zammad-yield-form .thankyou {
  text-align: center;
  padding: 40px 20px;
  color: var(--green);
  font-size: 1.1rem;
  font-weight: 600;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--bg-deep);
  padding: 64px 0 32px;
  position: relative;
  z-index: 1;
}
.footer > .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}
.footer-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: color 0.2s;
}
.footer-logo:hover { color: var(--accent); }
.footer-logo-img {
  height: 28px;
  width: auto;
  flex-shrink: 0;
}
.footer-logo .logo-divider {
  height: 20px;
  flex-shrink: 0;
}
.footer-tagline {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin: 0;
}
.footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 24px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.footer-nav a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: color 0.2s;
}
.footer-nav a:hover { color: var(--accent); }
.footer-social {
  display: flex;
  gap: 20px;
}
.footer-social a {
  color: var(--text-muted);
  display: flex;
  align-items: center;
  transition: color 0.2s;
}
.footer-social a:hover { color: var(--accent); }
.footer-copyright {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin: 0;
  padding-top: 16px;
  border-top: 1px solid var(--border);
  width: 100%;
  text-align: center;
}

/* ===== SECTION TRANSITIONS ===== */
/* Soft gradient glow line replacing hard borders */
.what-is::before,
.benefits::before,
.how-it-works::before,
.node-section::before,
.use-cases::before,
.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 5%, rgba(26, 111, 196, 0.12) 30%, rgba(232, 183, 48, 0.08) 50%, rgba(26, 111, 196, 0.12) 70%, transparent 95%);
  z-index: 1;
  pointer-events: none;
}
/* Soft gradient fade at top of sections - blends bg colors together */
.what-is::after,
.benefits::after,
.how-it-works::after,
.node-section::after,
.use-cases::after,
.footer::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 100px;
  pointer-events: none;
  z-index: 0;
}
/* Sections with bg-deep (following bg-primary): fade from primary */
.what-is::after,
.how-it-works::after,
.use-cases::after,
.footer::after {
  background: linear-gradient(180deg, var(--bg-primary) 0%, transparent 100%);
}
/* Sections with bg-primary (following bg-deep): fade from deep */
.benefits::after,
.node-section::after {
  background: linear-gradient(180deg, var(--bg-deep) 0%, transparent 100%);
}
/* CTA uses existing ::before, add glow via box-shadow */
.cta-section {
  box-shadow: inset 0 1px 0 0 rgba(26, 111, 196, 0.1);
}

/* ===== SCROLL ANIMATIONS ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  filter: blur(6px);
  transition: all 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0) translateX(0) scale(1);
  filter: blur(0);
}
.reveal-up {
  transform: translateY(40px);
}
.reveal-left {
  transform: translateX(-40px) translateY(0);
}
.reveal-right {
  transform: translateX(40px) translateY(0);
}
.reveal-scale {
  transform: scale(0.9) translateY(0);
}
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }
.reveal-delay-5 { transition-delay: 0.5s; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .hero-content { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .hero p { max-width: 100%; }
  .what-is-grid { grid-template-columns: 1fr; }
  .what-is-visual { display: none; }
  .benefits-grid { grid-template-columns: repeat(2, 1fr); }
  .yield-layout { grid-template-columns: 1fr; gap: 40px; }
  .yield-form-wrap { position: static; }
}
@media (max-width: 768px) {
  .section { padding: 80px 0; }
  .nav-links { display: none; }
  .mobile-toggle { display: flex; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .benefits-grid { grid-template-columns: 1fr; }
  .step-row { grid-template-columns: 1fr; gap: 20px; }
  .step-row--reverse { direction: ltr; }
  .step-row--reverse .step-text { text-align: left; }
  .step-row--reverse p { margin-left: 0; }
  .step-visual { max-width: 300px; margin: 0 auto; height: 140px; }
  .step-connector { height: 40px; }
  .step-connector svg { max-width: 100px; }
  .use-cases-grid { grid-template-columns: 1fr; }
  .node-tabs { flex-direction: column; gap: 4px; }
  .node-tab { border-radius: var(--radius-sm); }
  .node-tab:first-child { margin-right: 0; }
  .node-tab.active { border-bottom-color: rgba(26, 111, 196, 0.15); border-radius: var(--radius-sm); }
  .node-card { border-radius: var(--radius-sm); }
  .node-info-grid { grid-template-columns: repeat(2, 1fr); }
  .node-body { padding: 20px; }
  .node-panel-header { flex-direction: column; align-items: flex-start; gap: 12px; }
  .node-ranks { gap: 16px; flex-wrap: wrap; }
  .node-footer-section { flex-direction: column; gap: 12px; text-align: center; padding: 20px; }
  .reveal-left, .reveal-right { transform: translateY(30px) translateX(0); }
}
@media (max-width: 480px) {
  .hero h1 { font-size: 2.25rem; }
  .stats-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .cta-actions { flex-direction: column; align-items: center; }
}