:root {
  color-scheme: light;
  --bg: #ffffff;
  --text: #2b2722;
  --muted: #4a443b;
  --line: #b8a078;
  --surface: rgba(255, 255, 255, 0.95);
  --green: #2c8a56;
  --yellow: #caa25d;
  --red: #cf6a44;
  --blue: #2f66a2;
  --violet: #9f79bf;
  --shadow: rgba(184, 160, 120, 0.35);
  --image-filter: saturate(1.1) contrast(1.05);
  --bg-glow-a: rgba(255, 195, 92, 0.12);
  --bg-glow-b: rgba(184, 150, 85, 0.12);
  --bg-glow-c: rgba(142, 114, 70, 0.1);
  --bg-glow-ink: rgba(108, 128, 160, 0.12);
  --bg-glow-sun: rgba(196, 151, 88, 0.08);
  --theme-bg: linear-gradient(180deg, #ffffff 0, #faf7f1 100%);
  --theme-overlay: none;
  --header-glow: rgba(184, 160, 120, 0.42);
  --header-glow-ring: rgba(184, 160, 120, 0.2);
  --header-shadow: rgba(184, 160, 120, 0.2);
  --title-glow: rgba(184, 160, 120, 0.35);
  --title-trace: rgba(184, 150, 84, 0.42);
  --title-radiance: rgba(184, 160, 120, 0.25);
  --brand-glow: rgba(184, 160, 120, 0.8);
}

html[data-theme="regular"],
html[data-theme="neon"],
html[data-theme="technology"] {
  color-scheme: dark;
}

html[data-theme="regular"] {
  color-scheme: light;
  --bg: #ffffff;
  --text: #2b2722;
  --muted: #4a443b;
  --line: #b8a078;
  --surface: rgba(255, 255, 255, 0.95);
  --green: #2c8a56;
  --yellow: #caa25d;
  --red: #cf6a44;
  --blue: #2f66a2;
  --violet: #9f79bf;
  --shadow: rgba(184, 160, 120, 0.35);
  --image-filter: saturate(1.08) contrast(1.02);
  --bg-glow-a: rgba(255, 195, 92, 0.12);
  --bg-glow-b: rgba(184, 150, 85, 0.12);
  --bg-glow-c: rgba(142, 114, 70, 0.1);
  --bg-glow-ink: rgba(108, 128, 160, 0.12);
  --bg-glow-sun: rgba(196, 151, 88, 0.08);
  --theme-bg: linear-gradient(180deg, #ffffff 0, #faf7f1 100%);
  --theme-overlay: none;
  --header-glow: rgba(184, 160, 120, 0.42);
  --header-glow-ring: rgba(184, 160, 120, 0.2);
  --header-shadow: rgba(184, 160, 120, 0.2);
  --title-glow: rgba(184, 160, 120, 0.35);
  --title-trace: rgba(184, 150, 84, 0.42);
  --title-radiance: rgba(184, 160, 120, 0.25);
  --brand-glow: rgba(184, 160, 120, 0.8);
}

html[data-theme="neon"] {
  --bg: #02030d;
  --text: #ffffff;
  --muted: #e8f3ff;
  --line: rgba(97, 245, 255, 0.82);
  --surface: rgba(2, 5, 18, 0.94);
  --green: #51ffb2;
  --yellow: #ffe45e;
  --red: #ff4f9a;
  --blue: #61f5ff;
  --violet: #b675ff;
  --shadow: rgba(97, 245, 255, 0.58);
  --image-filter: saturate(1.35) contrast(1.08);
  --bg-glow-a: rgba(255, 79, 154, 0.54);
  --bg-glow-b: rgba(97, 245, 255, 0.46);
  --bg-glow-c: rgba(81, 255, 178, 0.32);
  --bg-glow-ink: rgba(182, 117, 255, 0.22);
  --bg-glow-sun: rgba(255, 228, 94, 0.11);
  --theme-bg: radial-gradient(circle at 15% 18%, var(--bg-glow-a), transparent 24%),
    radial-gradient(circle at 82% 12%, var(--bg-glow-b), transparent 27%),
    radial-gradient(circle at 70% 82%, var(--bg-glow-c), transparent 26%),
    linear-gradient(135deg, var(--bg-glow-ink), transparent 36%, var(--bg-glow-sun)),
    var(--bg);
  --theme-overlay: linear-gradient(90deg, transparent 0%, transparent 95%, rgba(255, 255, 255, 0.025) 95%, rgba(255, 255, 255, 0.025) 96%, transparent 96%, transparent 100%),
    linear-gradient(0deg, transparent 0%, transparent 95%, rgba(97, 245, 255, 0.02) 95%, rgba(97, 245, 255, 0.02) 96%, transparent 96%, transparent 100%);
  --header-shadow: rgba(97, 245, 255, 0.16);
}

html[data-theme="technology"] {
  --bg: #02090f;
  --text: #ddfff1;
  --muted: #9ad9d0;
  --line: rgba(0, 250, 197, 0.78);
  --surface: rgba(5, 22, 31, 0.96);
  --green: #3effa8;
  --yellow: #d6ff5b;
  --red: #ff4db8;
  --blue: #23e9ff;
  --violet: #8fd4ff;
  --shadow: rgba(0, 250, 197, 0.38);
  --image-filter: saturate(1.4) contrast(1.12);
  --bg-glow-a: rgba(0, 250, 197, 0.16);
  --bg-glow-b: rgba(35, 233, 255, 0.2);
  --bg-glow-c: rgba(62, 255, 168, 0.18);
  --bg-glow-ink: rgba(20, 180, 180, 0.15);
  --bg-glow-sun: rgba(214, 255, 91, 0.08);
  --theme-bg:
    radial-gradient(circle at 16% 16%, rgba(0, 250, 197, 0.22) 0, transparent 33%),
    radial-gradient(circle at 76% 18%, rgba(35, 233, 255, 0.2) 0, transparent 33%),
    radial-gradient(circle at 66% 78%, rgba(70, 255, 186, 0.2) 0, transparent 28%),
    repeating-linear-gradient(60deg, transparent 0, transparent 16px, rgba(23, 232, 253, 0.22) 16px, rgba(23, 232, 253, 0.22) 17px, transparent 17px, transparent 34px),
    repeating-linear-gradient(120deg, transparent 0, transparent 16px, rgba(140, 255, 178, 0.2) 16px, rgba(140, 255, 178, 0.2) 17px, transparent 17px, transparent 34px),
    repeating-linear-gradient(90deg, rgba(255, 255, 255, 0.08) 0, rgba(255, 255, 255, 0.08) 1px, transparent 1px, transparent 34px),
    repeating-linear-gradient(0deg, rgba(0, 250, 197, 0.1) 0, rgba(0, 250, 197, 0.1) 1px, transparent 1px, transparent 34px),
    repeating-linear-gradient(30deg, transparent 0, transparent 29px, rgba(23, 232, 253, 0.13) 29px, rgba(23, 232, 253, 0.13) 30px, transparent 30px, transparent 59px),
    repeating-linear-gradient(-30deg, transparent 0, transparent 29px, rgba(0, 250, 197, 0.11) 29px, rgba(0, 250, 197, 0.11) 30px, transparent 30px, transparent 59px),
    linear-gradient(145deg, rgba(0, 250, 197, 0.12) 0, transparent 58%),
    linear-gradient(55deg, rgba(8, 30, 48, 0.86), transparent 65%, rgba(8, 30, 48, 0.66)),
    linear-gradient(150deg,
      rgba(0, 250, 197, 0.18) 0,
      transparent 18%,
      transparent 82%,
      rgba(255, 255, 255, 0.08) 83%,
      transparent 100%),
    radial-gradient(circle at 50% 50%, rgba(0, 250, 197, 0.16) 0, rgba(0, 250, 197, 0.16) 1px, transparent 1px, transparent 4px),
    var(--bg);
  --header-glow: rgba(0, 250, 197, 0.58);
  --header-glow-ring: rgba(0, 250, 197, 0.28);
  --title-glow: rgba(35, 233, 255, 0.72);
  --title-trace: rgba(0, 250, 197, 0.94);
  --title-radiance: rgba(140, 255, 178, 0.44);
  --brand-glow: rgba(0, 250, 197, 0.84);
  --theme-overlay:
    radial-gradient(circle at 16% 15%, rgba(0, 250, 197, 0.35) 0, rgba(0, 250, 197, 0.35) 1px, transparent 1px, transparent 12px),
    radial-gradient(circle at 56% 40%, rgba(35, 233, 255, 0.25) 0, rgba(35, 233, 255, 0.25) 1px, transparent 1px, transparent 10px),
    radial-gradient(circle at 84% 75%, rgba(140, 255, 178, 0.22) 0, rgba(140, 255, 178, 0.22) 1px, transparent 1px, transparent 12px),
    linear-gradient(30deg,
      transparent 0,
      transparent 33%,
      rgba(0, 250, 197, 0.16) 33.2%,
      rgba(0, 250, 197, 0.16) 33.8%,
      transparent 34%,
      transparent 66%,
      rgba(35, 233, 255, 0.11) 66.3%,
      rgba(35, 233, 255, 0.11) 66.8%,
      transparent 67%),
    linear-gradient(-30deg,
      transparent 0,
      transparent 33%,
      rgba(140, 255, 178, 0.14) 33.2%,
      rgba(140, 255, 178, 0.14) 33.8%,
      transparent 34%,
      transparent 66%,
      rgba(0, 250, 197, 0.11) 66.3%,
      rgba(0, 250, 197, 0.11) 66.8%,
      transparent 67%);
  --header-shadow: rgba(0, 250, 197, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  margin: 0;
  background-color: var(--bg);
  background: var(--theme-bg);
  background-attachment: fixed;
  color: var(--text);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: var(--theme-overlay);
  opacity: 0.52;
  z-index: 0;
}

body > * {
  position: relative;
  z-index: 1;
}

::selection {
  background: var(--red);
  color: var(--bg);
}

a {
  color: inherit;
}

a,
button {
  -webkit-tap-highlight-color: transparent;
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 4px;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: 1080px;
  margin: 0 auto;
  padding: 26px 24px;
  border-bottom: 2px solid var(--line);
  box-shadow: 0 0 0 1px var(--header-glow), 0 0 34px var(--header-glow-ring), 0 18px 70px var(--header-shadow);
}

.header-controls {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  flex-wrap: wrap;
}

.brand,
nav a,
.link-card a {
  text-decoration: none;
}

.brand {
  color: var(--blue);
  font-size: 20px;
  font-weight: 800;
  text-shadow: 0 0 8px var(--blue), 0 0 24px var(--title-trace), 0 0 52px var(--title-radiance);
}

.brand:hover {
  color: var(--red);
  text-shadow: 0 0 18px rgba(255, 79, 154, 0.78);
}

nav {
  display: flex;
  gap: 12px;
  color: var(--text);
  font-size: 14px;
  font-weight: 800;
}

nav a {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  box-shadow: 0 0 18px var(--shadow);
}

nav a:hover {
  color: var(--yellow);
  border-color: var(--yellow);
  box-shadow: 0 0 24px var(--yellow);
  text-shadow: 0 0 8px rgba(255, 228, 94, 0.42);
}

.theme-control {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.1;
  font-weight: 700;
}

.theme-label {
  color: var(--text);
  opacity: 0.95;
  text-shadow: 0 0 8px var(--header-glow);
}

.theme-button {
  appearance: none;
  border: 1px solid var(--line);
  border-radius: 999px;
  min-height: 38px;
  padding: 8px 12px;
  color: var(--text);
  background: var(--surface);
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  box-shadow: 0 0 18px var(--shadow);
  cursor: pointer;
}

.theme-select {
  appearance: none;
  min-width: 150px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 8px 10px;
  color: var(--text);
  background: var(--surface);
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  box-shadow: 0 0 18px var(--shadow);
}

main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 58px 24px 80px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(280px, 0.95fr);
  gap: 48px;
  align-items: center;
  min-height: 54vh;
  padding: 8px 0 32px;
  border: 0;
  border-radius: 0;
  background: none;
  box-shadow: none;
}

.eyebrow {
  margin: 0 0 10px;
  color: var(--yellow);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
  text-shadow: 0 0 10px rgba(255, 228, 94, 0.42);
}

h1 {
  max-width: 720px;
  margin: 0;
  font-family: ui-serif, Georgia, Cambria, "Times New Roman", serif;
  font-size: clamp(44px, 7vw, 78px);
  line-height: 1.05;
  letter-spacing: 0;
  color: var(--blue);
  text-shadow:
    0 2px 0 rgba(0, 0, 0, 0.82),
    0 0 18px rgba(97, 245, 255, 0.44);
}

.visual {
  position: relative;
  min-height: 360px;
  filter: drop-shadow(0 0 30px rgba(97, 245, 255, 0.18));
}

.orbit,
.tile {
  position: absolute;
  border: 1px solid var(--line);
}

.orbit {
  inset: 28px;
  border-radius: 50%;
  border-width: 3px;
  box-shadow: 0 0 26px rgba(97, 245, 255, 0.7), inset 0 0 26px rgba(255, 79, 154, 0.24);
}

.orbit-one {
  border-color: rgba(81, 255, 178, 0.56);
}

.orbit-two {
  inset: 82px 34px 42px 74px;
  border-color: rgba(255, 79, 154, 0.46);
  transform: rotate(-12deg);
}

.tile {
  display: grid;
  place-items: center;
  width: 170px;
  height: 130px;
  border-width: 2px;
  border-radius: 8px;
  color: var(--bg);
  font-size: 22px;
  font-weight: 800;
  text-decoration: none;
  box-shadow: 0 0 18px currentColor, 0 0 44px var(--shadow), 0 18px 40px rgba(0, 0, 0, 0.48);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease, filter 160ms ease;
  cursor: pointer;
  pointer-events: auto;
  z-index: 1;
}

.tile:hover,
.tile:focus-visible {
  border-color: var(--yellow);
  box-shadow: 0 0 22px currentColor, 0 0 58px rgba(255, 228, 94, 0.5), 0 18px 40px rgba(0, 0, 0, 0.48);
  filter: brightness(1.08);
  transform: translateY(-3px);
}

.tile:active {
  transform: translateY(1px);
}

.tile-blog {
  top: 34px;
  right: 26px;
  background: var(--green);
  text-shadow: 0 0 14px rgba(5, 7, 19, 0.55);
}

.tile-game {
  left: 32px;
  bottom: 26px;
  background: var(--blue);
  text-shadow: 0 0 14px rgba(5, 7, 19, 0.55);
}

.links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.link-card a {
  display: block;
  padding: 24px;
  border: 2px solid var(--line);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 79, 154, 0.08), rgba(97, 245, 255, 0.08) 52%, rgba(81, 255, 178, 0.08)),
    var(--surface);
  box-shadow: inset 0 0 34px rgba(97, 245, 255, 0.12), 0 0 28px rgba(97, 245, 255, 0.34), 0 0 56px rgba(255, 79, 154, 0.18);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.link-card a {
  min-height: 190px;
  cursor: pointer;
}

.link-card a:hover,
.link-card a:focus-visible {
  border-color: var(--yellow);
  box-shadow: 0 0 0 1px rgba(255, 228, 94, 0.7), 0 0 30px rgba(255, 228, 94, 0.56), 0 0 80px rgba(255, 79, 154, 0.26);
  transform: translateY(-2px);
}

.link-card a:active {
  transform: translateY(1px);
}

.link-card span {
  color: var(--yellow);
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  text-shadow: 0 0 8px rgba(255, 228, 94, 0.38);
}

.link-card h2 {
  margin: 16px 0 10px;
  font-family: ui-serif, Georgia, Cambria, "Times New Roman", serif;
  font-size: 34px;
  line-height: 1.1;
  letter-spacing: 0;
  color: var(--green);
  text-shadow: 0 1px 0 rgba(0, 0, 0, 0.78), 0 0 12px rgba(81, 255, 178, 0.4);
}

.link-card p {
  max-width: 420px;
  margin: 0;
  color: var(--text);
  font-size: 18px;
  line-height: 1.55;
}

@media (max-width: 760px) {
  .site-header {
    padding: 20px;
  }

  main {
    padding: 38px 20px 64px;
  }

  .hero,
  .links {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: 24px;
  }

  .visual {
    min-height: 260px;
  }

  .tile {
    width: 140px;
    height: 104px;
  }
}