:root {
  --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Space Grotesk", "Inter", system-ui, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;

  --bg-0: #020817;
  --bg-1: #071a30;
  --bg-2: #0b2b4a;

  --navy: #062b4f;
  --navy-dark: #03172b;
  --navy-soft: #164d78;

  --cyan: #00a6d6;
  --cyan-2: #5ee7ff;
  --blue: #2f65ff;
  --violet: #7157f5;

  --text: #102033;
  --muted: #4d5f73;
  --soft: #6b7c8f;

  --paper: rgba(255, 255, 255, 0.97);
  --paper-soft: rgba(247, 250, 253, 0.94);
  --paper-border: rgba(255, 255, 255, 0.42);

  --line: rgba(16, 32, 51, 0.14);
  --shadow: 0 28px 86px rgba(0, 0, 0, 0.34);
  --glow: 0 0 72px rgba(0, 166, 214, 0.16);

  --radius: 12px;
  --radius-soft: 8px;
  --max-width: 1460px;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  scroll-behavior: smooth;
}

body {
  min-height: 100%;
  margin: 0;
  font-family: var(--font-sans);
  color: var(--text);
  background:
    radial-gradient(circle at 14% 20%, rgba(0, 166, 214, 0.22), transparent 30rem),
    radial-gradient(circle at 86% 12%, rgba(113, 87, 245, 0.16), transparent 29rem),
    radial-gradient(circle at 70% 92%, rgba(47, 101, 255, 0.17), transparent 34rem),
    linear-gradient(135deg, var(--bg-0) 0%, var(--bg-1) 48%, var(--bg-2) 100%);
  line-height: 1.65;
  overflow-x: hidden;
}

#relation-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(90deg, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 72px 72px;
  opacity: 0.32;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.88), transparent 90%);
  animation: grid-drift 30s linear infinite;
}

body::after {
  content: "";
  position: fixed;
  inset: -35%;
  z-index: 0;
  pointer-events: none;
  background:
    conic-gradient(
      from 120deg at 50% 50%,
      rgba(0, 166, 214, 0.22),
      rgba(113, 87, 245, 0.11),
      rgba(47, 101, 255, 0.18),
      rgba(94, 231, 255, 0.14),
      rgba(0, 166, 214, 0.22)
    );
  filter: blur(96px);
  opacity: 0.48;
  animation: aurora-orbit 22s ease-in-out infinite alternate;
}

.page {
  position: relative;
  z-index: 1;
  width: 100%;
  min-height: 100vh;
  padding: clamp(24px, 4vw, 62px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.layout {
  width: min(100%, var(--max-width));
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, 0.62fr);
  gap: clamp(22px, 3vw, 42px);
  align-items: stretch;
}

.definition-card {
  position: relative;
  z-index: 2;
  width: 100%;
  overflow: hidden;
  border: 1px solid var(--paper-border);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, var(--paper), var(--paper-soft));
  box-shadow: var(--shadow), var(--glow);
  backdrop-filter: blur(22px) saturate(132%);
  -webkit-backdrop-filter: blur(22px) saturate(132%);
}

.definition-card::before {
  content: "";
  display: block;
  height: 6px;
  background:
    linear-gradient(
      90deg,
      var(--navy),
      var(--cyan),
      var(--blue),
      var(--cyan-2),
      var(--navy)
    );
  background-size: 260% 100%;
  animation: accent-flow 9s ease-in-out infinite;
}

.definition-card::after {
  content: "";
  position: absolute;
  top: -170px;
  right: -160px;
  width: 520px;
  height: 520px;
  pointer-events: none;
  background:
    radial-gradient(circle, rgba(0, 166, 214, 0.11), transparent 66%);
  opacity: 0.9;
}

.definition-card > * {
  position: relative;
  z-index: 1;
}

.eyebrow {
  width: fit-content;
  margin: clamp(30px, 5vw, 56px) clamp(28px, 5vw, 58px) 24px;
  padding: 7px 11px;
  border-left: 4px solid var(--cyan);
  color: var(--navy);
  background: rgba(232, 248, 252, 0.88);
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1 {
  max-width: 900px;
  margin: 0 clamp(28px, 5vw, 58px);
  color: var(--navy-dark);
  font-family: var(--font-serif);
  font-size: clamp(3rem, 5.5vw, 5.25rem);
  line-height: 1.02;
  letter-spacing: -0.045em;
  font-weight: 700;
}

.subtitle {
  max-width: 760px;
  margin: 22px clamp(28px, 5vw, 58px) 0;
  color: var(--navy-soft);
  font-size: clamp(1.05rem, 1.4vw, 1.22rem);
  font-weight: 500;
  line-height: 1.54;
  letter-spacing: -0.005em;
}

.definition,
.positioning,
.note,
blockquote,
.links,
footer {
  margin-left: clamp(28px, 5vw, 58px);
  margin-right: clamp(28px, 5vw, 58px);
}

.definition {
  margin-top: clamp(36px, 5vw, 54px);
}

.definition p,
.positioning p,
.note p,
footer p,
.note li {
  margin: 0;
  color: var(--muted);
  font-size: clamp(0.98rem, 1.15vw, 1.035rem);
}

.definition p + p,
.positioning p + p,
.note p + p {
  margin-top: 18px;
}

strong {
  color: var(--navy-dark);
  font-weight: 700;
}

.positioning {
  margin-top: 32px;
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid rgba(0, 166, 214, 0.24);
  border-left: 5px solid var(--cyan);
  border-radius: var(--radius-soft);
  background:
    linear-gradient(135deg, rgba(0, 166, 214, 0.09), rgba(113, 87, 245, 0.035)),
    rgba(255, 255, 255, 0.74);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.74),
    0 12px 30px rgba(0, 166, 214, 0.055);
}

.positioning p {
  color: var(--text);
}

.note {
  margin-top: 32px;
  padding: clamp(20px, 3vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--radius-soft);
  background:
    linear-gradient(180deg, rgba(245, 248, 251, 0.94), rgba(255, 255, 255, 0.68));
}

.note ul {
  margin: 12px 0 20px;
  padding-left: 1.25rem;
}

.note li + li {
  margin-top: 7px;
}

h2 {
  margin: 0 0 14px;
  color: var(--navy-dark);
  font-family: var(--font-serif);
  font-size: clamp(1.28rem, 2vw, 1.55rem);
  line-height: 1.2;
  letter-spacing: -0.025em;
  font-weight: 700;
}

blockquote {
  margin-top: 36px;
  margin-bottom: 0;
  padding: 0 0 0 22px;
  border-left: 4px solid var(--cyan);
  color: var(--navy-dark);
  font-family: var(--font-serif);
  font-size: clamp(1.08rem, 1.45vw, 1.28rem);
  font-weight: 700;
  line-height: 1.54;
  letter-spacing: -0.012em;
}

.links {
  margin-top: 38px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 9px 16px;
  border: 1px solid rgba(6, 43, 79, 0.9);
  border-radius: 4px;
  color: #ffffff;
  background: var(--navy);
  font-family: var(--font-display);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  box-shadow: 0 8px 20px rgba(6, 43, 79, 0.14);
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.links a:hover,
.links a:focus-visible {
  transform: translateY(-2px);
  border-color: rgba(0, 166, 214, 0.9);
  background: var(--cyan);
  box-shadow: 0 14px 28px rgba(0, 166, 214, 0.22);
  outline: none;
}

footer {
  margin-top: 40px;
  padding-top: 24px;
  padding-bottom: clamp(30px, 5vw, 56px);
  border-top: 1px solid var(--line);
}

footer p {
  color: var(--soft);
  font-size: 0.9rem;
}

.visual-panel {
  position: sticky;
  top: 40px;
  align-self: start;
  min-height: min(76vh, 760px);
  border: 1px solid rgba(94, 231, 255, 0.22);
  border-radius: var(--radius);
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 44%, rgba(94, 231, 255, 0.28), transparent 18rem),
    radial-gradient(circle at 70% 70%, rgba(113, 87, 245, 0.14), transparent 18rem),
    linear-gradient(160deg, rgba(2, 8, 23, 0.48), rgba(6, 26, 49, 0.76));
  box-shadow:
    0 26px 80px rgba(0, 0, 0, 0.32),
    inset 0 0 70px rgba(0, 166, 214, 0.09);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

.visual-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(90deg, rgba(255, 255, 255, 0.052) 1px, transparent 1px),
    linear-gradient(rgba(255, 255, 255, 0.052) 1px, transparent 1px);
  background-size: 42px 42px;
  opacity: 0.5;
  animation: panel-grid 15s linear infinite;
}

.visual-panel::after {
  content: "";
  position: absolute;
  inset: -20%;
  background:
    conic-gradient(
      from 0deg,
      rgba(0, 166, 214, 0),
      rgba(0, 166, 214, 0.22),
      rgba(113, 87, 245, 0.12),
      rgba(94, 231, 255, 0.18),
      rgba(0, 166, 214, 0)
    );
  filter: blur(42px);
  opacity: 0.66;
  animation: rotate-glow 20s linear infinite;
}

.field {
  position: absolute;
  inset: 0;
  z-index: 2;
}

.axis {
  position: absolute;
  left: 50%;
  top: 45%;
  width: 1px;
  height: 74%;
  transform-origin: top center;
  background: linear-gradient(to bottom, rgba(94, 231, 255, 0.42), transparent);
  opacity: 0.62;
}

.axis-1 { transform: rotate(28deg); }
.axis-2 { transform: rotate(118deg); }
.axis-3 { transform: rotate(242deg); }

.ring {
  position: absolute;
  left: 50%;
  top: 45%;
  border: 1px solid rgba(94, 231, 255, 0.36);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  box-shadow: inset 0 0 34px rgba(0, 166, 214, 0.08);
}

.ring-1 {
  width: 292px;
  height: 292px;
  animation: spin 22s linear infinite;
}

.ring-2 {
  width: 420px;
  height: 420px;
  border-color: rgba(113, 87, 245, 0.3);
  animation: spin-reverse 30s linear infinite;
}

.ring-3 {
  width: 560px;
  height: 560px;
  border-color: rgba(255, 255, 255, 0.16);
  animation: spin 46s linear infinite;
}

.ring::before,
.ring::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #5ee7ff;
  box-shadow: 0 0 22px rgba(94, 231, 255, 0.95);
}

.ring::before {
  top: 50%;
  left: -5px;
}

.ring::after {
  right: 12%;
  bottom: 10%;
}

.beam {
  position: absolute;
  left: 50%;
  top: 45%;
  width: 1px;
  height: 350px;
  transform-origin: top center;
  background: linear-gradient(to bottom, rgba(94, 231, 255, 0.72), transparent);
  opacity: 0.38;
  filter: drop-shadow(0 0 12px rgba(94, 231, 255, 0.68));
}

.beam-1 { transform: rotate(28deg); }
.beam-2 { transform: rotate(108deg); }
.beam-3 { transform: rotate(205deg); }
.beam-4 { transform: rotate(292deg); }

.core-orb {
  position: absolute;
  left: 50%;
  top: 45%;
  width: 178px;
  height: 178px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background:
    radial-gradient(
      circle at 40% 36%,
      #ffffff 0%,
      #e9fbff 8%,
      #5ee7ff 21%,
      rgba(0, 166, 214, 0.58) 39%,
      rgba(47, 101, 255, 0.28) 58%,
      rgba(3, 23, 43, 0.16) 74%,
      transparent 84%
    );
  box-shadow:
    0 0 28px rgba(255, 255, 255, 0.72),
    0 0 76px rgba(94, 231, 255, 0.78),
    0 0 150px rgba(0, 166, 214, 0.38),
    inset 0 0 42px rgba(255, 255, 255, 0.22);
  animation: core-pulse 4s ease-in-out infinite;
}

.dot {
  position: absolute;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: #ffffff;
  box-shadow:
    0 0 16px rgba(255, 255, 255, 0.86),
    0 0 36px rgba(94, 231, 255, 0.72);
  animation: float-dot 7s ease-in-out infinite;
}

.dot-1 { left: 18%; top: 18%; animation-delay: -0.8s; }
.dot-2 { right: 18%; top: 20%; animation-delay: -1.6s; }
.dot-3 { left: 13%; bottom: 25%; animation-delay: -2.4s; }
.dot-4 { right: 15%; bottom: 18%; animation-delay: -3.2s; }
.dot-5 { left: 46%; top: 12%; animation-delay: -4s; }
.dot-6 { left: 33%; bottom: 12%; animation-delay: -4.8s; }
.dot-7 { right: 34%; bottom: 30%; animation-delay: -5.6s; }

.field-caption {
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 28px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.field-caption span {
  padding: 11px 8px;
  border: 1px solid rgba(94, 231, 255, 0.22);
  border-radius: 4px;
  color: rgba(245, 251, 255, 0.88);
  background: rgba(2, 8, 23, 0.48);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  font-family: var(--font-display);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-align: center;
  text-transform: uppercase;
}

@media (max-width: 1100px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .visual-panel {
    order: -1;
    position: relative;
    top: auto;
    min-height: 420px;
  }
}

@media (max-width: 720px) {
  .page {
    padding: 0;
    align-items: flex-start;
  }

  .layout {
    gap: 0;
  }

  .visual-panel {
    min-height: 340px;
    border-radius: 0;
  }

  .definition-card {
    min-height: 100vh;
    border-radius: 0;
  }

  .eyebrow {
    margin-top: 30px;
    font-size: 0.62rem;
  }

  h1 {
    letter-spacing: -0.035em;
  }

  .ring-3 {
    width: 500px;
    height: 500px;
  }

  .field-caption {
    grid-template-columns: repeat(2, 1fr);
  }

  .links {
    flex-direction: column;
  }

  .links a {
    width: 100%;
  }
}

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

  body::before,
  body::after,
  .definition-card::before,
  .visual-panel::before,
  .visual-panel::after,
  .ring,
  .core-orb,
  .dot {
    animation: none;
  }

  .links a {
    transition: none;
  }

  .links a:hover,
  .links a:focus-visible {
    transform: none;
  }
}

@keyframes grid-drift {
  from {
    background-position: 0 0, 0 0;
  }

  to {
    background-position: 144px 72px, 144px 72px;
  }
}

@keyframes aurora-orbit {
  0% {
    transform: translate3d(-3%, -2%, 0) rotate(0deg) scale(1);
  }

  50% {
    transform: translate3d(3%, 2%, 0) rotate(12deg) scale(1.08);
  }

  100% {
    transform: translate3d(4%, -1%, 0) rotate(-8deg) scale(1.04);
  }
}

@keyframes accent-flow {
  0% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }

  100% {
    background-position: 0% 50%;
  }
}

@keyframes panel-grid {
  from {
    background-position: 0 0, 0 0;
  }

  to {
    background-position: 84px 42px, 84px 42px;
  }
}

@keyframes rotate-glow {
  from {
    transform: rotate(0deg) scale(1);
  }

  to {
    transform: rotate(360deg) scale(1.06);
  }
}

@keyframes core-pulse {
  0%, 100% {
    transform: translate(-50%, -50%) scale(0.94);
    opacity: 0.88;
  }

  50% {
    transform: translate(-50%, -50%) scale(1.08);
    opacity: 1;
  }
}

@keyframes spin {
  from {
    transform: translate(-50%, -50%) rotate(0deg);
  }

  to {
    transform: translate(-50%, -50%) rotate(360deg);
  }
}

@keyframes spin-reverse {
  from {
    transform: translate(-50%, -50%) rotate(360deg);
  }

  to {
    transform: translate(-50%, -50%) rotate(0deg);
  }
}

@keyframes float-dot {
  0%, 100% {
    transform: translate3d(0, 0, 0) scale(1);
  }

  50% {
    transform: translate3d(14px, -18px, 0) scale(1.11);
  }
}