/* Byte95 Software - single stylesheet. */

:root {
  --void: #000000;
  --panel: #0a0a0c;
  --panel-hi: #121216;
  --line: #202027;
  --line-hi: #303039;

  /* Primary: cobalt */
  --blue: #2b6cff;
  --blue-lo: #16336f;
  --blue-hi: #7ba4ff;

  /* Accents: cyan + amber (retro CRT / late-90s tech) */
  --cyan: #2ec4ff;
  --cyan-lo: #0a3d52;
  --cyan-hi: #8adbff;
  --amber: #f0a53a;
  --amber-lo: #4a3210;
  --amber-hi: #ffc870;
  --teal: #2dd4a8;

  --accent: var(--blue);
  --accent-lo: var(--blue-lo);
  --accent-hi: var(--blue-hi);

  --text: #e6e8ed;
  --dim: #9ba1ad;
  --faint: #6c7280;

  --sans: "Inter", "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, "JetBrains Mono", Menlo,
    Consolas, "Liberation Mono", monospace;

  --shell: 1120px;
  --radius: 3px;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scrollbar-gutter: stable;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background-color: #050508;
  background-image:
    radial-gradient(ellipse 90% 55% at 50% -15%, rgba(43, 108, 255, 0.14), transparent 60%),
    radial-gradient(ellipse 55% 45% at 100% 70%, rgba(46, 196, 255, 0.08), transparent 55%),
    radial-gradient(ellipse 45% 40% at 0% 90%, rgba(240, 165, 58, 0.05), transparent 50%),
    linear-gradient(180deg, #08080c 0%, #050508 40%, #030306 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--cyan-hi);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--amber-hi);
}

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

code {
  font-family: var(--mono);
  font-size: 0.9em;
  padding: 0.1em 0.35em;
  border: 1px solid var(--line);
  border-radius: 2px;
  background: #08080a;
  color: var(--cyan-hi);
}

.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding: 0 24px;
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: 12px;
  top: 12px;
  z-index: 20;
  padding: 10px 16px;
  background: var(--blue);
  color: #fff;
  text-decoration: none;
}

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

.eyebrow {
  margin: 0 0 14px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan);
}

/* ---------- Masthead ---------- */

.masthead {
  position: relative;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(5, 5, 8, 0.85);
}

.masthead__inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  min-height: 61px;
  width: 100%;
  padding: 0 24px;
}

.brand {
  --mark-h: 42px;
  display: inline-flex;
  align-items: flex-end;
  justify-self: start;
  gap: 3px;
  color: var(--text);
  text-decoration: none;
}

.brand__mark {
  display: block;
  height: 42px;
  width: auto;
  mix-blend-mode: lighten;
}

.brand__mark svg {
  display: block;
  height: 100%;
  width: auto;
}

.brand__text {
  display: grid;
  grid-template-columns: max-content;
  line-height: 1.05;
  padding-bottom: calc(var(--mark-h) * 14 / 154);
}

.brand__text strong {
  font-size: 1.12rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-right: -0.06em;
}

.brand__text small {
  display: flex;
  justify-content: space-between;
  padding-left: calc(1.12rem * 0.17);
  font-family: var(--mono);
  font-size: 0.6rem;
  color: var(--cyan);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  justify-self: center;
  gap: 4px;
}

.nav__link {
  padding: 7px 14px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--dim);
}

.nav__link:hover {
  color: var(--text);
  border-color: var(--line-hi);
  background: var(--panel-hi);
}

.nav__link.is-current {
  color: var(--cyan-hi);
  border-color: color-mix(in srgb, var(--cyan) 35%, var(--line-hi));
  background: color-mix(in srgb, var(--cyan-lo) 45%, var(--panel-hi));
}

.nav__drop {
  position: relative;
}

.nav__drop > .nav__link {
  display: flex;
  align-items: center;
}

.nav__drop > .nav__link::after {
  content: "";
  width: 0;
  height: 0;
  margin-left: 8px;
  border: 3.5px solid transparent;
  border-top-color: currentColor;
  transform: translateY(2px);
}

.nav__drop:hover > .nav__link:not(.is-current),
.nav__drop:focus-within > .nav__link:not(.is-current) {
  color: var(--text);
  border-color: var(--line-hi);
  background: var(--panel-hi);
}

.nav__menu {
  position: absolute;
  top: calc(100% - 2px);
  left: 0;
  min-width: 11.5rem;
  margin: 0;
  padding: 6px;
  list-style: none;
  border: 1px solid var(--line-hi);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--panel) 92%, #000);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.45);
  opacity: 0;
  pointer-events: none;
}

.nav__drop:hover > .nav__menu,
.nav__drop:focus-within > .nav__menu {
  opacity: 1;
  pointer-events: auto;
}

.nav__sublink {
  display: block;
  padding: 8px 12px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--dim);
}

.nav__sublink:hover {
  color: var(--text);
  border-color: var(--line);
  background: var(--panel-hi);
}

.nav__sublink.is-current {
  color: var(--cyan-hi);
  border-color: color-mix(in srgb, var(--cyan) 28%, var(--line));
  background: color-mix(in srgb, var(--cyan-lo) 40%, var(--panel-hi));
}

.social {
  display: flex;
  flex-wrap: wrap;
  justify-self: end;
  gap: 6px;
}

.social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  color: var(--dim);
  text-decoration: none;
}

.social a:hover {
  color: var(--text);
}

.social svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}

/* ---------- Hero ---------- */

.hero {
  padding: clamp(48px, 8vw, 96px) 0 clamp(48px, 8vw, 88px);
}

.hero__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero__intro {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: max-content;
  max-width: 100%;
}

.hero__brand {
  --mark-h: clamp(160px, 32vw, 370px);
  display: flex;
  flex-wrap: nowrap;
  align-items: flex-end;
  justify-content: center;
  gap: clamp(4px, 0.8vw, 10px);
  margin-bottom: clamp(28px, 5vw, 52px);
  color: var(--text);
}

.hero__mark {
  display: block;
  height: clamp(160px, 32vw, 370px);
  width: auto;
  flex-shrink: 0;
  mix-blend-mode: lighten;
}

.hero__mark svg {
  display: block;
  height: 100%;
  width: auto;
}

.hero__mark .logo-bits__col--left polygon:nth-child(3) { --i: 4; }
.hero__mark .logo-bits__col--left polygon:nth-child(4) { --i: 0; }
.hero__mark .logo-bits__col--left polygon:nth-child(5) { --i: 6; }
.hero__mark .logo-bits__col--left polygon:nth-child(8) { --i: 2; }
.hero__mark .logo-bits__col--right polygon:nth-child(3) { --i: 1; }
.hero__mark .logo-bits__col--right polygon:nth-child(4) { --i: 5; }
.hero__mark .logo-bits__col--right polygon:nth-child(6) { --i: 3; }
.hero__mark .logo-bits__col--right polygon:nth-child(8) { --i: 7; }

.hero__mark .logo-bits polygon:not([stroke]) {
  transform: scale(0);
  transform-box: fill-box;
  transform-origin: center;
  animation: logo-bit-boot 0.74s both;
  animation-delay: calc(234ms + var(--i) * 62ms);
}

@keyframes logo-bit-boot {
  0% {
    transform: scale(0);
    filter: brightness(0.35);
  }
  21% {
    transform: scale(1);
    filter: brightness(0.5);
  }
  35% {
    transform: scale(1);
    filter: brightness(1.2);
  }
  50% {
    filter: brightness(0.22);
  }
  68% {
    filter: brightness(1.12);
  }
  84% {
    filter: brightness(0.48);
  }
  100% {
    transform: scale(1);
    filter: brightness(1);
  }
}

.hero__wordmark {
  --lockup: clamp(3.4rem, 11vw, 9.4rem);
  display: grid;
  grid-template-columns: max-content;
  line-height: 0.95;
  padding-bottom: calc(var(--mark-h) * 14 / 154);
}

.hero__wordmark strong {
  font-size: var(--lockup);
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-right: -0.04em;
}

.hero__wordmark small {
  display: flex;
  justify-content: space-between;
  padding-left: calc(var(--lockup) * 0.17);
  font-family: var(--mono);
  font-size: clamp(1rem, 2.8vw, 2.2rem);
  color: var(--cyan);
}

.hero__heading {
  margin: 0;
  width: 0;
  min-width: 100%;
  font-size: clamp(2.1rem, 5.5vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
  font-weight: 700;
  color: #fff;
}

.btn {
  display: inline-block;
  padding: 12px 22px;
  border: 1px solid #343438;
  border-radius: 6px;
  background: #1c1c1f;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  color: #f2f2f4;
  transition: background-color 150ms ease, border-color 150ms ease;
}

.btn:hover {
  color: #fff;
  border-color: #48484f;
  background: #27272b;
}

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

/* ---------- Sections ---------- */

.products,
.os-features,
.comparison,
.creed,
.prose-wrap {
  padding: 24px 0 clamp(36px, 6vw, 68px);
}

.section-title {
  margin: 0 0 26px;
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--dim);
}

.section-title span {
  color: var(--cyan);
  margin-right: 8px;
}

.creed .section-title span {
  color: var(--amber);
}

.grid {
  display: grid;
  gap: 22px;
}

.grid--2 {
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.products .grid--2 {
  gap: 28px 42px;
}

.grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

/* ---------- Window chrome ---------- */

.window {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  overflow: hidden;
}

.window__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--line);
  background: var(--panel-hi);
}

.window__title {
  margin: 0;
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-hi);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.window__buttons {
  display: inline-flex;
  gap: 5px;
  flex: none;
  margin-left: auto;
}

.window__buttons i,
.window__max {
  width: 9px;
  height: 9px;
  border: 1px solid var(--line-hi);
  border-radius: 1px;
}

.window__max {
  position: relative;
  color: var(--accent);
  text-decoration: none;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line-hi));
  transition: background-color 150ms ease, border-color 150ms ease, color 150ms ease;
}

.window__max::before {
  content: "";
  position: absolute;
  inset: -8px -2px;
}

.window__max::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 5px;
  height: 5px;
  margin: -2.5px 0 0 -2.5px;
  border: 1px solid currentColor;
  pointer-events: none;
}

.window__max:hover {
  color: var(--accent-hi);
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 28%, transparent);
}

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

.window__buttons i:last-child {
  border-color: var(--accent);
}

.product:nth-child(1) {
  --accent: var(--blue);
  --accent-lo: var(--blue-lo);
  --accent-hi: var(--blue-hi);
}

.product:nth-child(2) {
  --accent: var(--cyan);
  --accent-lo: var(--cyan-lo);
  --accent-hi: var(--cyan-hi);
}

.product:nth-child(3) {
  --accent: var(--amber);
  --accent-lo: var(--amber-lo);
  --accent-hi: var(--amber-hi);
}

.product {
  --extrude: 20px;
  --neon: color-mix(in srgb, color-mix(in srgb, var(--accent) 75%, #fff) 60%, transparent);
  position: relative;
  isolation: isolate;
  overflow: visible;
  margin-top: var(--extrude);
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  border-top-color: transparent;
  border-left-color: transparent;
  border-right-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  border-bottom-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  background: linear-gradient(
    165deg,
    color-mix(in srgb, var(--accent-lo) 14%, var(--panel)) 0%,
    var(--panel) 38%
  );
}

.product__iso {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
  pointer-events: none;
  z-index: -1;
}

.product__iso--stroke {
  z-index: 1;
}

.product__iso-side {
  fill: color-mix(in srgb, var(--accent-lo) 30%, #050508);
  transform-box: fill-box;
  transform-origin: top right;
  transform: skewY(45deg);
}

.product__iso-top {
  fill: color-mix(in srgb, var(--accent-lo) 18%, var(--panel-hi));
  transform-box: fill-box;
  transform-origin: bottom left;
  transform: skewX(45deg);
}

.product__stroke {
  fill: none;
  stroke: var(--neon);
  stroke-width: 1.5;
  stroke-linecap: butt;
  stroke-linejoin: miter;
  vector-effect: non-scaling-stroke;
  filter: drop-shadow(0 0 2px color-mix(in srgb, var(--accent) 25%, transparent));
}

.product .window__bar {
  background: color-mix(in srgb, var(--accent-lo) 10%, var(--panel-hi));
  border-bottom-color: color-mix(in srgb, var(--accent) 35%, var(--line));
}

.window__body {
  flex: 1;
  padding: 26px;
}

.window__footer {
  padding: 12px 26px 16px;
  border-top: 1px solid var(--line);
}

.product .window__body {
  display: flex;
  flex-direction: column;
}

.product .window__body .btn {
  align-self: flex-end;
  margin-top: auto;
}

.product .btn {
  padding: 7px 13px;
  border: 1px solid color-mix(in srgb, var(--accent) 55%, var(--line));
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--accent-lo) 28%, var(--panel-hi));
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-hi);
}

.product .btn:hover {
  color: #fff;
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent-lo) 48%, var(--panel-hi));
}

/* ---------- Product cards ---------- */

.product__kind {
  margin: 0 0 12px;
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--accent-hi);
}

.product__name {
  margin: 0 0 6px;
  font-size: 1.9rem;
  letter-spacing: -0.02em;
  line-height: 1.1;
}

.product__summary {
  margin: 0 0 18px;
  color: var(--dim);
}

.speclist {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 7px;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.speclist li {
  padding-left: 20px;
  position: relative;
  color: var(--text);
}

.speclist li::before {
  content: "\25B8";
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ---------- ByteOS features ---------- */

.prose-wrap .os-features,
.prose-wrap .comparison {
  margin-top: 40px;
  padding: 0;
}

.prose-wrap .comparison:first-child {
  margin-top: 0;
}

.os-features__card {
  --accent: var(--blue);
  --accent-lo: var(--blue-lo);
  --accent-hi: var(--blue-hi);
  border-color: color-mix(in srgb, var(--blue) 55%, var(--line));
  background:
    radial-gradient(ellipse 95% 74% at 0% 0%, color-mix(in srgb, var(--blue-lo) 14%, var(--panel)), transparent 70%),
    radial-gradient(ellipse 95% 74% at 100% 0%, color-mix(in srgb, var(--blue-lo) 14%, var(--panel)), transparent 70%),
    radial-gradient(ellipse 95% 74% at 0% 100%, color-mix(in srgb, var(--blue-lo) 14%, var(--panel)), transparent 70%),
    radial-gradient(ellipse 95% 74% at 100% 100%, color-mix(in srgb, var(--blue-lo) 14%, var(--panel)), transparent 70%),
    var(--panel);
}

.os-features__card .window__bar {
  background: color-mix(in srgb, var(--blue-lo) 10%, var(--panel-hi));
  border-bottom-color: color-mix(in srgb, var(--blue) 35%, var(--line));
}

.os-features__grid {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.os-feature {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: clamp(28px, 4vw, 40px) clamp(22px, 3vw, 32px);
  border-right: 1px solid color-mix(in srgb, var(--blue) 16%, var(--line));
  border-bottom: 1px solid color-mix(in srgb, var(--blue) 16%, var(--line));
  background: transparent;
}

.os-feature:nth-child(4n) {
  border-right: none;
}

.os-feature:nth-last-child(-n + 4) {
  border-bottom: none;
}

.os-feature__icons {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 36px;
  margin-bottom: 18px;
}

.os-feature__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  flex: none;
  color: var(--blue-hi);
}

.os-feature__icon svg,
.os-feature__icon img {
  width: 36px;
  height: 36px;
  display: block;
  object-fit: contain;
}

/* Monochrome icons inherit the feature accent */
.os-feature__icon--scales svg,
.os-feature__icon--gnome svg,
.os-feature__icon--kde svg,
.os-feature__icon--xfce svg {
  fill: currentColor;
}

.os-feature__icon--proton {
  color: #fff;
}

.os-feature__icon--gnome {
  color: #fff;
}

.os-feature__icon--kde {
  color: #1d99f3;
}

.os-feature__icon--xfce {
  color: #00aadc;
}

.os-feature__title {
  margin: 0;
  font-size: clamp(1.15rem, 2.2vw, 1.45rem);
  line-height: 1.2;
  letter-spacing: -0.025em;
  font-weight: 650;
  color: #fff;
}

.os-feature__detail {
  margin: 10px auto 0;
  max-width: 28ch;
  font-size: 0.95rem;
  line-height: 1.45;
  color: var(--dim);
}

/* ---------- Feed comparison ---------- */

.comparison__intro {
  max-width: 62ch;
  margin: -10px 0 26px;
  color: var(--dim);
}

.feed-compare {
  --split: 50%;
  --neon-red: #ff3358;
}

.feed-compare__legend {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 10px;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.feed-compare__legend span:first-child {
  color: var(--neon-red);
}

.feed-compare__legend span:last-child {
  color: var(--cyan-hi);
  text-align: right;
}

.feed-compare__stage {
  position: relative;
  height: 1120px;
  border: 1px solid color-mix(in srgb, var(--neon-red) 72%, var(--line-hi));
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: 0 0 10px color-mix(in srgb, var(--neon-red) 32%, transparent);
  overflow: hidden;
}

.feed-demo {
  position: absolute;
  inset: 0;
  margin: 0;
  padding-bottom: 22px;
  overflow: hidden;
  background:
    linear-gradient(rgba(46, 196, 255, 0.035), rgba(46, 196, 255, 0.035)),
    var(--panel);
}

.feed-demo--before {
  z-index: 1;
}

.feed-demo--after {
  z-index: 2;
  clip-path: inset(0 0 0 var(--split));
}

.feed-demo__header {
  display: flex;
  align-items: center;
  min-height: 52px;
  padding: 0 22px;
  border-bottom: 1px solid var(--line);
  background: rgba(18, 18, 22, 0.96);
}

.feed-demo__header strong {
  font-size: 0.95rem;
}

.feed-demo--before .feed-demo__header strong {
  color: var(--neon-red);
}

.feed-demo--after .feed-demo__header strong {
  color: var(--cyan-hi);
}

.feed-shorts {
  width: calc(100% - 44px);
  max-width: 620px;
  margin: 12px auto 0;
  padding: 12px 14px 14px;
  border: 1px solid var(--line);
  border-left: 3px solid #a167ff;
  border-radius: var(--radius);
  background: #0c0c0f;
}

.feed-shorts__title {
  margin: 0 0 9px;
  font-family: var(--mono);
  font-size: 0.65rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--dim);
}

.feed-shorts__list {
  display: grid;
  grid-template-columns: repeat(8, minmax(0, 1fr));
  gap: 8px;
}

.feed-short {
  position: relative;
  display: grid;
  aspect-ratio: 9 / 16;
  place-items: center;
  padding: 6px;
  border: 1px solid #494950;
  border-radius: 3px;
  background: linear-gradient(145deg, #383840, #202026);
  overflow: hidden;
}

.feed-short::after {
  content: "";
  position: absolute;
  top: 10%;
  left: 50%;
  width: 88%;
  height: 56%;
  background: url("../icons/brain-melt.svg") center / contain no-repeat;
  transform: translateX(-50%);
  pointer-events: none;
}

.feed-short::before {
  content: "\25B6";
  position: absolute;
  top: 72%;
  left: 50%;
  z-index: 1;
  color: rgba(230, 232, 237, 0.38);
  transform: translate(-50%, -50%);
}

.feed-short span {
  position: relative;
  z-index: 1;
  align-self: end;
  font-family: var(--mono);
  font-size: 0.54rem;
  line-height: 1.2;
  text-align: center;
  color: #d0d2d8;
  text-shadow: 0 1px 3px #000;
}

.feed-post {
  position: relative;
  width: calc(100% - 44px);
  max-width: 620px;
  margin: 12px auto 0;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--faint);
  border-radius: var(--radius);
  background: #0c0c0f;
}

.feed-post--friend {
  border-left-color: var(--cyan);
}

.feed-post--ad {
  border-left-color: var(--amber);
  background: color-mix(in srgb, var(--amber-lo) 18%, #0c0c0f);
}

.feed-post--noise {
  border-left-color: #a167ff;
}

.feed-post p {
  margin: 0;
  font-size: 0.84rem;
  line-height: 1.45;
  color: var(--dim);
}

.feed-post__meta {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  margin-bottom: 6px !important;
  font-family: var(--mono);
  font-size: 0.67rem !important;
}

.feed-post__meta strong {
  color: var(--text);
}

.feed-post__meta span {
  color: var(--faint);
  text-align: right;
}

.feed-post__avatar {
  position: relative;
  width: 26px;
  height: 26px;
  border: 1px solid var(--line-hi);
  border-radius: 50%;
  background: #25252b;
  overflow: hidden;
}

.feed-post__avatar::before,
.feed-post__avatar::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  background: #777b84;
}

.feed-post__avatar::before {
  top: 5px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
}

.feed-post__avatar::after {
  bottom: 3px;
  width: 15px;
  height: 8px;
  border-radius: 8px 8px 3px 3px;
}

.feed-post__link {
  color: var(--dim);
  text-decoration-color: color-mix(in srgb, var(--amber) 55%, transparent);
}

.feed-post__link:hover {
  color: var(--amber-hi);
}

.feed-post__engage {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 10px;
  padding-top: 8px;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.04em;
  color: var(--faint);
}

.feed-post__reacts {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.feed-post__reacts i {
  font-style: normal;
  font-size: 0.72rem;
  line-height: 1;
}

.feed-post__reacts b {
  margin-left: 2px;
  font-weight: 500;
  color: var(--dim);
}

.feed-post__image {
  display: grid;
  width: 150px;
  height: 76px;
  margin-top: 10px;
  place-items: center;
  border: 1px solid var(--line-hi);
  border-radius: 2px;
  background:
    linear-gradient(135deg, transparent 48%, #383840 49% 51%, transparent 52%),
    linear-gradient(45deg, #25252b 50%, #303038 50%);
}

.feed-post__image--video {
  position: relative;
  width: 180px;
  height: 100px;
  background:
    radial-gradient(ellipse 70% 55% at 50% 45%, rgba(43, 108, 255, 0.18), transparent 70%),
    linear-gradient(135deg, transparent 48%, #383840 49% 51%, transparent 52%),
    linear-gradient(45deg, #1a1c24 50%, #262830 50%);
}

.feed-post__play {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 28px;
  height: 28px;
  margin: -20px 0 0 -14px;
  border-radius: 50%;
  background: rgba(10, 10, 12, 0.72);
  border: 1px solid var(--line-hi);
}

.feed-post__play::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 55%;
  transform: translate(-50%, -50%);
  border-style: solid;
  border-width: 5px 0 5px 8px;
  border-color: transparent transparent transparent var(--cyan-hi);
}

.feed-post__image span {
  padding: 3px 6px;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  color: var(--dim);
  background: rgba(10, 10, 12, 0.82);
}

.feed-post__image--video span:not(.feed-post__play) {
  position: relative;
  z-index: 1;
  align-self: end;
  margin-bottom: 8px;
}

.feed-post__tag {
  display: inline-block;
  margin-top: 8px;
  font-family: var(--mono);
  font-size: 0.58rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--amber-hi);
}

.feed-demo__loading {
  margin: 18px 0 0;
  font-family: var(--mono);
  font-size: 0.68rem;
  text-align: center;
  color: var(--faint);
}

.feed-demo__loading span {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 32px;
  vertical-align: middle;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 12px 0 var(--amber-lo), 24px 0 var(--line-hi);
}

.feed-demo__end {
  width: calc(100% - 44px);
  max-width: 620px;
  margin: 32px auto 0;
  padding: 28px 20px;
  text-align: center;
}

.feed-demo__end > span {
  display: grid;
  width: 30px;
  height: 30px;
  margin: 0 auto 10px;
  place-items: center;
  border: 1px solid var(--cyan);
  border-radius: 50%;
  color: var(--cyan-hi);
}

.feed-demo__end strong {
  display: block;
  color: var(--text);
}

.feed-demo__end p {
  margin: 5px 0 0;
  font-size: 0.82rem;
  color: var(--dim);
}

.feed-compare__range {
  position: absolute;
  z-index: 4;
  top: 50%;
  left: 0;
  width: 100%;
  height: 44px;
  margin: 0;
  transform: translateY(-50%);
  appearance: none;
  background: transparent;
  cursor: ew-resize;
}

.feed-compare__range::-webkit-slider-runnable-track {
  height: 4px;
  background: transparent;
}

.feed-compare__range::-webkit-slider-thumb {
  width: 44px;
  height: 44px;
  margin-top: -20px;
  appearance: none;
  border: 0;
  background: transparent;
}

.feed-compare__range::-moz-range-track {
  height: 4px;
  background: transparent;
}

.feed-compare__range::-moz-range-thumb {
  width: 44px;
  height: 44px;
  border: 0;
  background: transparent;
}

.feed-compare__range:focus-visible {
  outline: none;
}

.feed-compare__divider {
  position: absolute;
  z-index: 3;
  top: 0;
  bottom: 0;
  left: var(--split);
  width: 2px;
  transform: translateX(-1px);
  background: var(--cyan);
  box-shadow: 0 0 18px rgba(46, 196, 255, 0.45);
  pointer-events: none;
}

.feed-compare__divider::after {
  content: "\2194";
  position: absolute;
  top: 50%;
  left: 50%;
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  transform: translate(-50%, -50%);
  border: 1px solid var(--cyan);
  border-radius: 50%;
  font-family: var(--mono);
  font-size: 1rem;
  color: var(--cyan-hi);
  background: var(--panel-hi);
}

.feed-compare__range:focus-visible + .feed-compare__divider::after {
  outline: 2px solid var(--cyan-hi);
  outline-offset: 3px;
}

/* ---------- Tiles ---------- */

.tile {
  padding: 22px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius);
  background: var(--panel);
}

.tile:nth-child(1) {
  --accent: var(--blue);
  --accent-hi: var(--blue-hi);
  --tile-wash: color-mix(in srgb, color-mix(in srgb, var(--blue-lo) 35%, var(--panel)) 80%, #000);
  border-color: color-mix(in srgb, var(--blue) 18%, var(--line));
  border-left-color: var(--accent);
  background:
    linear-gradient(135deg, var(--tile-wash) 0%, transparent 66%),
    linear-gradient(225deg, var(--tile-wash) 0%, transparent 66%),
    linear-gradient(to top, var(--tile-wash) 0%, transparent 50%),
    var(--panel);
}

.tile:nth-child(2) {
  --accent: var(--cyan);
  --accent-hi: var(--cyan-hi);
  --tile-wash: color-mix(in srgb, color-mix(in srgb, var(--cyan-lo) 40%, var(--panel)) 80%, #000);
  border-color: color-mix(in srgb, var(--cyan) 18%, var(--line));
  border-left-color: var(--accent);
  background:
    linear-gradient(135deg, var(--tile-wash) 0%, transparent 66%),
    linear-gradient(225deg, var(--tile-wash) 0%, transparent 66%),
    linear-gradient(to top, var(--tile-wash) 0%, transparent 50%),
    var(--panel);
}

.tile:nth-child(3) {
  --accent: var(--amber);
  --accent-hi: var(--amber-hi);
  --tile-wash: color-mix(in srgb, color-mix(in srgb, var(--amber-lo) 40%, var(--panel)) 80%, #000);
  border-color: color-mix(in srgb, var(--amber) 18%, var(--line));
  border-left-color: var(--accent);
  background:
    linear-gradient(135deg, var(--tile-wash) 0%, transparent 66%),
    linear-gradient(225deg, var(--tile-wash) 0%, transparent 66%),
    linear-gradient(to top, var(--tile-wash) 0%, transparent 50%),
    var(--panel);
}

.tile h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
  letter-spacing: -0.01em;
  color: var(--accent-hi);
}

.tile p {
  margin: 0;
  font-size: 0.96rem;
  color: var(--dim);
}

/* ---------- Page prose ---------- */

.prose > *:first-child {
  margin-top: 0;
}

.prose > *:last-child {
  margin-bottom: 0;
}

.prose h2 {
  margin: 38px 0 12px;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line);
}

.prose h3 {
  margin: 28px 0 10px;
  font-size: 1.1rem;
}

.prose p,
.prose li {
  color: var(--dim);
}

.prose strong {
  color: var(--text);
}

.prose ul {
  padding-left: 20px;
}

.prose li {
  margin: 6px 0;
}

.prose li::marker {
  color: var(--cyan);
}

.prose table {
  width: 100%;
  margin: 22px 0;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.prose th,
.prose td {
  padding: 11px 14px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.prose th {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan-hi);
  background: var(--panel-hi);
}

.prose td {
  color: var(--dim);
}

/* ---------- Page CTA + contact form ---------- */

.page-cta {
  margin-top: 24px;
  padding: clamp(22px, 4vw, 32px);
  border: 1px solid color-mix(in srgb, var(--cyan) 24%, var(--line));
  border-left: 3px solid var(--cyan);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--cyan-lo) 24%, var(--panel));
}

.page-cta p {
  margin: 0;
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text);
}

.contact-form {
  margin-top: 30px;
}

.contact-form fieldset {
  display: grid;
  gap: 18px;
  margin: 0;
  padding: 0;
  border: 0;
}

.contact-form__field {
  display: grid;
  gap: 7px;
}

.contact-form label {
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan-hi);
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 11px 13px;
  border: 1px solid var(--line-hi);
  border-radius: var(--radius);
  font: inherit;
  color: var(--text);
  background: #08080a;
}

.contact-form textarea {
  resize: vertical;
}

.contact-form :disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

.contact-form__status {
  margin: 18px 0 0;
  padding: 10px 13px;
  border-left: 2px solid var(--amber);
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--amber-hi) !important;
  background: color-mix(in srgb, var(--amber-lo) 30%, var(--panel));
}

/* ---------- About incentive sliders ---------- */

.incentive {
  margin-top: 24px;
}

.incentive .window__body {
  display: grid;
  gap: 22px;
}

.incentive__intro {
  margin: 0;
  color: var(--dim);
}

.incentive__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 18px;
}

.incentive-slider {
  --slider: var(--cyan);
  --pct: 50%;
  display: grid;
  gap: 8px;
}

.incentive-slider--profit {
  --slider: #3ddc84;
}

.incentive-slider--engagement {
  --slider: #f0c14a;
}

.incentive-slider--org {
  --slider: #7f9cbf;
}

.incentive-slider--quality {
  --slider: #9b7dff;
}

.incentive-slider--enshittification {
  --slider: #c4a06a;
}

.incentive-slider--mental {
  --slider: var(--cyan);
}

.incentive-slider__meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.incentive-slider__meta label {
  font-family: var(--mono);
  font-size: 0.76rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slider);
}

.incentive-slider__value {
  font-family: var(--mono);
  font-size: 0.76rem;
  font-variant-numeric: tabular-nums;
  color: var(--text);
}

.incentive-slider__range {
  appearance: none;
  width: 100%;
  height: 8px;
  margin: 0;
  border-radius: 999px;
  background: linear-gradient(
    to right,
    var(--slider) 0%,
    var(--slider) var(--pct),
    var(--line-hi) var(--pct),
    var(--line-hi) 100%
  );
  cursor: pointer;
}

.incentive-slider__range::-webkit-slider-runnable-track {
  height: 8px;
  border-radius: 999px;
  background: transparent;
}

.incentive-slider__range::-webkit-slider-thumb {
  appearance: none;
  width: 16px;
  height: 16px;
  margin-top: -4px;
  border: 2px solid #fff;
  border-radius: 50%;
  background: var(--slider);
  box-shadow: 0 0 10px color-mix(in srgb, var(--slider) 50%, transparent);
}

.incentive-slider__range::-moz-range-track {
  height: 8px;
  border: 0;
  border-radius: 999px;
  background: transparent;
}

.incentive-slider__range::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border: 2px solid #fff;
  border-radius: 50%;
  background: var(--slider);
  box-shadow: 0 0 10px color-mix(in srgb, var(--slider) 50%, transparent);
}

.incentive-slider__range:focus-visible {
  outline: 2px solid var(--slider);
  outline-offset: 4px;
}

/* ---------- 404 ---------- */

#main:has(.error404) {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.error404 {
  flex: 1;
  display: flex;
  align-items: center;
  padding: clamp(36px, 6vw, 72px) 0;
}

.error404 .shell {
  width: 100%;
}

.error404__window {
  max-width: 640px;
  margin: 0 auto;
  border-color: color-mix(in srgb, var(--cyan) 40%, var(--line));
}

.error404__window .window__bar {
  background: color-mix(in srgb, var(--cyan-lo) 18%, var(--panel-hi));
  border-bottom-color: color-mix(in srgb, var(--cyan) 28%, var(--line));
}

.error404__kicker {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.error404__kicker span {
  margin-right: 8px;
  color: var(--dim);
}

.error404__code {
  margin: 0 0 22px;
  font-family: var(--mono);
  font-size: clamp(1.6rem, 6.5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.06em;
  white-space: nowrap;
  color: var(--cyan-hi);
}

.error404__dump {
  margin: 0 0 22px;
  display: grid;
  gap: 8px 0;
  font-family: var(--mono);
  font-size: 0.78rem;
}

.error404__dump div {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: 12px;
  padding: 6px 0;
  border-top: 1px solid var(--line);
}

.error404__dump dt {
  margin: 0;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--faint);
}

.error404__dump dd {
  margin: 0;
  color: var(--text);
  overflow-wrap: anywhere;
}

.error404__copy {
  margin: 0 0 22px;
  color: var(--dim);
}

.error404__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
}

.error404 .btn {
  padding: 7px 13px;
  border: 1px solid color-mix(in srgb, var(--cyan) 45%, var(--line));
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--cyan-lo) 28%, var(--panel-hi));
  font-family: var(--mono);
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--cyan-hi);
}

.error404 .btn:hover {
  color: #fff;
  border-color: var(--cyan);
  background: color-mix(in srgb, var(--cyan-lo) 48%, var(--panel-hi));
}

/* ---------- Footer ---------- */

.footer {
  margin-top: auto;
}

.footer__inner {
  padding: 12px 24px;
  text-align: center;
}

.footer__meta {
  margin: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  font-size: 0.82rem;
  line-height: 1.3;
  color: var(--faint);
}

.footer__link {
  text-decoration: none;
}

@media (max-width: 1100px) {
  .os-features__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .os-feature:nth-child(4n) {
    border-right: 1px solid color-mix(in srgb, var(--blue) 16%, var(--line));
  }

  .os-feature:nth-child(2n) {
    border-right: none;
  }

  .os-feature:nth-last-child(-n + 4) {
    border-bottom: 1px solid color-mix(in srgb, var(--blue) 16%, var(--line));
  }

  .os-feature:nth-last-child(-n + 2) {
    border-bottom: none;
  }
}

@media (max-width: 640px) {
  body {
    font-size: 16px;
  }

  .masthead__inner {
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "brand social"
      "nav nav";
  }

  .brand {
    grid-area: brand;
  }

  .nav {
    grid-area: nav;
  }

  .social {
    grid-area: social;
  }

  .os-features__grid {
    grid-template-columns: 1fr;
  }

  .os-feature {
    border-right: none;
  }

  .os-feature:nth-child(2n),
  .os-feature:nth-child(4n) {
    border-right: none;
  }

  .os-feature:nth-last-child(-n + 2) {
    border-bottom: 1px solid color-mix(in srgb, var(--blue) 16%, var(--line));
  }

  .os-feature:last-child {
    border-bottom: none;
  }

  .window__body {
    padding: 20px;
  }

  .window__footer {
    padding: 12px 20px 14px;
  }

  .feed-compare__legend {
    font-size: 0.58rem;
    letter-spacing: 0.06em;
  }

  .feed-compare__stage {
    height: 1200px;
  }

  .feed-demo__header {
    padding: 0 14px;
  }

  .feed-demo__header span {
    font-size: 0.56rem;
  }

  .feed-shorts,
  .feed-post,
  .feed-demo__end {
    width: calc(100% - 28px);
  }

  .feed-shorts {
    padding: 10px;
  }

  .feed-shorts__list {
    gap: 4px;
  }

  .feed-short {
    padding: 3px;
  }

  .feed-short span {
    font-size: 0.45rem;
  }

  .feed-post {
    padding: 11px 12px;
  }

  .feed-post__meta {
    grid-template-columns: 24px minmax(0, 1fr) auto;
    gap: 8px;
  }
}

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

  .hero__mark .logo-bits polygon:not([stroke]) {
    animation: none;
    filter: none;
    transform: none;
  }
}