:root {
  --color-primary: #00d4ff;
  --color-primary-dim: rgba(0, 212, 255, 0.15);
  --color-secondary: #7c3aed;
  --color-accent: #22d3ee;
  --color-bg-primary: #0a0e17;
  --color-bg-secondary: #111827;
  --color-bg-card: rgba(17, 24, 39, 0.6);
  --color-text-primary: #f1f5f9;
  --color-text-secondary: #64748b;
  --color-text-muted: #475569;
  --color-border: rgba(100, 116, 139, 0.2);
  --font-family: 'Satoshi', -apple-system, BlinkMacSystemFont, sans-serif;
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
  line-height: 1.6;
  min-height: 100dvh;
  overflow-x: hidden;
  position: relative;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.grid-overlay {
  position: fixed;
  inset: 0;
  background-image: 
    linear-gradient(rgba(0, 212, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 212, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

.glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
}

.glow-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(0, 212, 255, 0.12) 0%, transparent 70%);
  top: -200px;
  right: -100px;
}

.glow-2 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.08) 0%, transparent 70%);
  bottom: -100px;
  left: -100px;
}

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: 1.5rem 2rem;
  z-index: 100;
  background: linear-gradient(to bottom, var(--color-bg-primary) 0%, transparent 100%);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  font-size: 1.5rem;
  color: var(--color-primary);
  animation: spin 8s linear infinite;
}

.logo-text {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  letter-spacing: 0.02em;
}

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

.main {
  position: relative;
  z-index: 1;
  min-height: 100dvh;
  display: flex;
  align-items: center;
}

.hero {
  width: 100%;
  max-width: 1400px;
  margin: 0 auto;
  padding: 8rem 2rem 4rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  width: fit-content;
  backdrop-filter: blur(8px);
}

.badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.2); }
}

.headline {
  font-size: clamp(3rem, 8vw, 5.5rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.03em;
}

.headline-accent {
  color: var(--color-primary);
  position: relative;
}

.headline-accent::after {
  content: '';
  position: absolute;
  bottom: 0.1em;
  left: 0;
  right: 0;
  height: 0.12em;
  background: linear-gradient(90deg, var(--color-primary), transparent);
  opacity: 0.3;
}

.tagline {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-accent);
  letter-spacing: 0.01em;
}

.description {
  font-size: 1.0625rem;
  color: var(--color-text-secondary);
  max-width: 520px;
  line-height: 1.7;
}

.countdown {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1rem 0;
}

.countdown-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
  min-width: 80px;
  backdrop-filter: blur(8px);
}

.countdown-value {
  font-size: 2rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--color-text-primary);
  letter-spacing: -0.02em;
}

.countdown-label {
  font-size: 0.6875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 0.25rem;
}

.countdown-separator {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.signup-form {
  margin-top: 0.5rem;
}

.form-group {
  display: flex;
  gap: 0.75rem;
  max-width: 480px;
}

.form-group input[type="email"] {
  flex: 1;
  padding: 1rem 1.25rem;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  font-family: inherit;
  font-size: 1rem;
  color: var(--color-text-primary);
  transition: var(--transition-base);
}

.form-group input[type="email"]::placeholder {
  color: var(--color-text-muted);
}

.form-group input[type="email"]:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-dim);
}

.submit-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 1rem 1.5rem;
  background: var(--color-primary);
  color: var(--color-bg-primary);
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: var(--transition-base);
  white-space: nowrap;
}

.submit-btn:hover {
  background: var(--color-accent);
  transform: translateY(-2px);
}

.submit-btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--color-primary-dim);
}

.submit-btn:active {
  transform: translateY(0);
}

.btn-arrow {
  transition: transform var(--transition-base);
}

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

.form-note {
  margin-top: 0.75rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.success-message {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  background: rgba(34, 197, 94, 0.1);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 12px;
  max-width: 480px;
  animation: slideIn 0.4s var(--transition-bounce);
}

.success-message[hidden] {
  display: none;
}

.success-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  background: rgb(34, 197, 94);
  color: white;
  font-size: 0.875rem;
  font-weight: 700;
  border-radius: 50%;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-visual {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.circuit-pattern {
  position: relative;
  width: 400px;
  height: 400px;
}

.node {
  position: absolute;
  width: 12px;
  height: 12px;
  background: var(--color-primary);
  border-radius: 50%;
  box-shadow: 0 0 20px var(--color-primary);
}

.node::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 200%;
  height: 200%;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  transform: translate(-50%, -50%);
}

.node-1 {
  top: 20%;
  left: 30%;
  animation: float 4s ease-in-out infinite;
}

.node-2 {
  top: 60%;
  left: 20%;
  animation: float 4s ease-in-out infinite 1s;
}

.node-3 {
  top: 30%;
  right: 20%;
  animation: float 4s ease-in-out infinite 2s;
}

.node-4 {
  bottom: 25%;
  right: 30%;
  animation: float 4s ease-in-out infinite 0.5s;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-15px); }
}

.pulse-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 200px;
  height: 200px;
  border: 2px solid var(--color-primary);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: pulse-ring 3s ease-out infinite;
}

.pulse-ring::before,
.pulse-ring::after {
  content: '';
  position: absolute;
  inset: -40px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
}

.pulse-ring::after {
  inset: -80px;
}

@keyframes pulse-ring {
  0% {
    transform: translate(-50%, -50%) scale(0.8);
    opacity: 0.8;
  }
  100% {
    transform: translate(-50%, -50%) scale(1.4);
    opacity: 0;
  }
}

.footer {
  position: relative;
  z-index: 1;
  padding: 2rem;
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 3rem;
    text-align: center;
  }

  .hero-content {
    align-items: center;
  }

  .description {
    max-width: 100%;
  }

  .countdown {
    justify-content: center;
  }

  .form-group {
    max-width: 100%;
    width: 100%;
  }

  .success-message {
    max-width: 100%;
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

  .circuit-pattern {
    width: 280px;
    height: 280px;
  }
}

@media (max-width: 640px) {
  .header {
    padding: 1rem 1.5rem;
  }

  .hero {
    padding: 6rem 1.5rem 3rem;
  }

  .countdown {
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .countdown-block {
    min-width: 70px;
    padding: 0.75rem 1rem;
  }

  .countdown-value {
    font-size: 1.5rem;
  }

  .countdown-separator {
    display: none;
  }

  .form-group {
    flex-direction: column;
  }

  .submit-btn {
    justify-content: center;
  }

  .circuit-pattern {
    width: 220px;
    height: 220px;
  }
}

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