:root {
  color-scheme: dark;
  --background: oklch(0.08 0.02 160);
  --matrix-green: oklch(0.82 0.22 142);
  --matrix-green-dim: oklch(0.55 0.18 142);
  --matrix-green-glow: oklch(0.9 0.25 142);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: #050a07;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--matrix-green);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
}

button,
input,
textarea {
  font: inherit;
}

main {
  position: relative;
  min-height: 100vh;
  overflow: hidden;
}

#matrix-rain {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  background: #050a07;
}

.vignette {
  position: fixed;
  z-index: 1;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
    ellipse at center,
    transparent 0%,
    rgba(0, 0, 0, 0.55) 70%,
    rgba(0, 0, 0, 0.9) 100%
  );
}

.site-header {
  position: relative;
  z-index: 2;
  display: flex;
  justify-content: center;
  padding: 6rem 1.5rem 2rem;
}

.wordmark {
  color: var(--matrix-green-glow);
  font-family: "Orbitron", "Courier New", monospace;
  font-size: 2.25rem;
  font-weight: 900;
  letter-spacing: 0.35em;
  line-height: 1;
  text-shadow: 0 0 25px rgba(0, 255, 140, 0.6);
}

.hero {
  position: relative;
  z-index: 2;
  display: flex;
  max-width: 72rem;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 6rem;
  flex-direction: column;
  align-items: center;
}

.panel {
  position: relative;
  border: 2px solid color-mix(in oklch, var(--matrix-green-dim) 60%, transparent);
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.main-panel {
  width: 100%;
  max-width: 64rem;
  padding: 2.5rem;
  box-shadow:
    0 0 0 1px rgba(0, 255, 140, 0.15),
    0 0 60px rgba(0, 255, 140, 0.25),
    0 40px 120px -10px rgba(0, 255, 140, 0.45),
    inset 0 0 100px rgba(0, 255, 140, 0.07);
}

.corner {
  position: absolute;
  width: 0.75rem;
  height: 0.75rem;
  border-color: var(--matrix-green-glow);
  pointer-events: none;
}

.corner-top-left {
  top: -1px;
  left: -1px;
  border-top: 1px solid;
  border-left: 1px solid;
}

.corner-top-right {
  top: -1px;
  right: -1px;
  border-top: 1px solid;
  border-right: 1px solid;
}

.corner-bottom-right {
  right: -1px;
  bottom: -1px;
  border-right: 1px solid;
  border-bottom: 1px solid;
}

.corner-bottom-left {
  bottom: -1px;
  left: -1px;
  border-bottom: 1px solid;
  border-left: 1px solid;
}

.system-label {
  margin-bottom: 2rem;
  color: var(--matrix-green-dim);
  font-size: 0.6875rem;
  letter-spacing: 0.35em;
  line-height: 1.5;
  text-transform: uppercase;
}

.lead {
  margin: 0;
  color: color-mix(in oklch, var(--matrix-green) 95%, transparent);
  font-size: 1.125rem;
  line-height: 1.55;
}

.lead-secondary {
  color: color-mix(in oklch, var(--matrix-green) 90%, transparent);
}

.bright {
  color: var(--matrix-green-glow);
}

.divider {
  width: 100%;
  height: 1px;
  margin: 2.5rem 0;
  background: linear-gradient(
    to right,
    transparent,
    var(--matrix-green-dim),
    transparent
  );
}

.parent-wrap {
  position: relative;
  width: 100%;
  max-width: 36rem;
  margin-top: 2.5rem;
}

.parent-panel {
  padding: 2rem;
}

.entity-tag {
  margin-bottom: 0.75rem;
  color: var(--matrix-green-dim);
  font-size: 0.625rem;
  letter-spacing: 0.3em;
  line-height: 1.5;
  text-transform: uppercase;
}

.parent-panel h2,
.entity-card h2 {
  margin: 0 0 0.5rem;
  color: var(--matrix-green-glow);
  font-size: 1.5rem;
  line-height: 1.35;
}

.parent-panel p,
.entity-card p {
  margin: 0;
  color: color-mix(in oklch, var(--matrix-green) 80%, transparent);
  font-size: 0.875rem;
  line-height: 1.625;
}

.connector {
  display: none;
  width: 100%;
  max-width: 64rem;
  height: 5rem;
}

.connector svg {
  width: 100%;
  height: 100%;
  overflow: visible;
}

.connector line {
  stroke: rgba(0, 255, 140, 0.35);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.connector circle {
  fill: rgba(0, 255, 140, 0.7);
}

.connector .pulse-node {
  fill: rgba(0, 255, 140, 0.9);
  animation: node-pulse 2s ease-in-out infinite;
  transform-box: fill-box;
  transform-origin: center;
}

@keyframes node-pulse {
  0%,
  100% {
    opacity: 0.9;
    transform: scale(1);
  }
  50% {
    opacity: 0.5;
    transform: scale(1.65);
  }
}

.entities {
  position: relative;
  display: grid;
  width: 100%;
  max-width: 64rem;
  margin-top: 2rem;
  gap: 1rem;
}

.entity-card {
  position: relative;
  padding: 1.5rem;
  border: 1px solid color-mix(in oklch, var(--matrix-green-dim) 40%, transparent);
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.entity-card:hover {
  border-color: color-mix(in oklch, var(--matrix-green-glow) 70%, transparent);
}

.contact {
  position: relative;
  width: 100%;
  max-width: 64rem;
  margin-top: 4rem;
}

.contact-panel {
  width: 100%;
  padding: 2.5rem;
}

.form-fields {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.field label {
  color: var(--matrix-green-dim);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  line-height: 1.5;
  text-transform: uppercase;
}

.field input,
.field textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid color-mix(in oklch, var(--matrix-green-dim) 40%, transparent);
  border-radius: 0;
  outline: none;
  background: rgba(0, 0, 0, 0.5);
  color: var(--matrix-green);
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.field textarea {
  resize: none;
  line-height: 1.5;
}

.field input::placeholder,
.field textarea::placeholder {
  color: color-mix(in oklch, var(--matrix-green-dim) 40%, transparent);
  opacity: 1;
}

.field input:focus,
.field textarea:focus {
  border-color: var(--matrix-green-glow);
  box-shadow: 0 0 0 1px color-mix(in oklch, var(--matrix-green-glow) 20%, transparent);
}

.field input[aria-invalid="true"],
.field textarea[aria-invalid="true"] {
  border-color: #f87171;
}

#submit-button {
  width: 100%;
  margin-top: 0.5rem;
  padding: 0.75rem 1rem;
  border: 1px solid color-mix(in oklch, var(--matrix-green-dim) 60%, transparent);
  border-radius: 0;
  background: color-mix(in oklch, var(--matrix-green) 10%, transparent);
  color: var(--matrix-green-glow);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  line-height: 1.5;
  text-transform: uppercase;
  transition:
    background 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease;
}

#submit-button:hover {
  border-color: color-mix(in oklch, var(--matrix-green-glow) 70%, transparent);
  background: color-mix(in oklch, var(--matrix-green) 20%, transparent);
  box-shadow: 0 0 20px rgba(0, 255, 140, 0.2);
}

#submit-button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
}

.form-status {
  min-height: 1.125rem;
  margin: 0;
  color: #f87171;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  line-height: 1.5;
  text-transform: uppercase;
}

.contact-success p {
  margin: 0;
  color: var(--matrix-green-glow);
  font-size: 1.25rem;
  line-height: 1.5;
}

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

[hidden] {
  display: none !important;
}

@media (min-width: 768px) {
  .site-header {
    padding-top: 8rem;
  }

  .wordmark {
    font-size: 3.75rem;
  }

  .hero {
    padding-top: 4rem;
  }

  .main-panel,
  .contact-panel {
    padding: 4rem;
  }

  .lead {
    font-size: 1.5rem;
  }

  .connector {
    display: block;
  }

  .entities {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 0;
  }
}

@media (min-width: 1024px) {
  .main-panel {
    padding: 5rem;
  }
}

@media (max-width: 480px) {
  .site-header {
    padding-right: 1rem;
    padding-left: 1rem;
  }

  .wordmark {
    font-size: clamp(1.6rem, 9vw, 2.25rem);
    letter-spacing: 0.22em;
  }

  .hero {
    padding-right: 1rem;
    padding-left: 1rem;
  }

  .main-panel,
  .contact-panel {
    padding: 1.75rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .pulse-node {
    animation: none !important;
  }
}