/* Antenna's website. A desk at night, in pixels: hard edges, stepped corners, no soft shadows. */

:root {
  --ink: #0f1222;
  --ink-2: #161a30;
  --ink-3: #20253f;
  --line: #2c3254;
  --text: #eef0fb;
  --text-2: #a9afcf;
  --text-3: #8b91b4; /* 5.4:1 on --ink-2: the faintest text still reads (ui-ux-pro-max contrast check) */
  --signal: #3ddc97; /* the antenna's signal: arriving, working */
  --parcel: #e5ab66; /* the ant's parcel */
  --parcel-dark: #b97d3e;
  --sky: #6fb7ff;
  --violet: #a78bfa;
  --late: #ff6b6b;
  --px: 4px; /* one pixel of the pixel art */
  --wrap: 1120px;
  --display: 'Pixelify Sans', 'Silkscreen', monospace;
  --tiny: 'Silkscreen', monospace;
  --body: 'IBM Plex Sans', system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  overflow-x: clip; /* the falling pixels may fly past the edge; the page never scrolls sideways */
}

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font: 400 17px/1.6 var(--body);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
}

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

/* A stepped, pixel-cut corner on anything that wants one. */
.px-box,
.btn,
.window,
.tag,
.steps li,
.top-cta {
  clip-path: polygon(
    0 var(--px), var(--px) var(--px), var(--px) 0,
    calc(100% - var(--px)) 0, calc(100% - var(--px)) var(--px), 100% var(--px),
    100% calc(100% - var(--px)), calc(100% - var(--px)) calc(100% - var(--px)), calc(100% - var(--px)) 100%,
    var(--px) 100%, var(--px) calc(100% - var(--px)), 0 calc(100% - var(--px))
  );
}

/* ---- top bar --------------------------------------------------------------- */

.top {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px max(16px, calc((100% - var(--wrap)) / 2));
  background: rgba(15, 18, 34, 0.86);
  backdrop-filter: blur(10px);
  border-bottom: 2px solid var(--ink-3);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font: 700 22px/1 var(--display);
  letter-spacing: 0.02em;
}

.brand img {
  image-rendering: pixelated;
}

.top-nav {
  display: flex;
  align-items: center;
  gap: 22px;
  font: 400 12px/1 var(--tiny);
}

.top-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 40px; /* a comfortable target, well over the 24px web minimum */
  padding: 0 4px;
  text-decoration: none;
  color: var(--text-2);
  transition: color 150ms ease;
}

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

.top-cta {
  padding: 9px 14px;
  color: var(--ink) !important;
  background: var(--signal);
}

@media (max-width: 640px) {
  .top-nav a:not(.top-cta) {
    display: none;
  }
}

/* ---- buttons ----------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border: 0;
  font: 400 14px/1 var(--tiny);
  text-decoration: none;
  cursor: pointer;
  transition: transform 150ms steps(3), filter 150ms ease, background-color 150ms ease;
}

.btn:active {
  transform: translateY(2px);
}

.btn-primary {
  color: var(--ink);
  background: var(--signal);
  box-shadow: inset 0 calc(-1 * var(--px)) 0 rgba(0, 0, 0, 0.25);
}

.btn-primary:hover {
  filter: brightness(1.08);
}

.btn-ghost {
  color: var(--text);
  background: var(--ink-3);
  box-shadow: inset 0 calc(-1 * var(--px)) 0 rgba(0, 0, 0, 0.3);
}

.btn-ghost:hover {
  background: var(--line);
}

/* ---- hero -------------------------------------------------------------------- */

.hero {
  position: relative;
  overflow: hidden;
  padding: 72px 16px 0;
  background: linear-gradient(180deg, #0b0d1a 0%, var(--ink) 60%, var(--ink-2) 100%);
}

.stars {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  image-rendering: pixelated;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 56px;
  align-items: center;
  max-width: var(--wrap);
  margin: 0 auto;
  padding-bottom: 64px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  font: 400 12px/1 var(--tiny);
  color: var(--signal);
}

/* The antenna's signal: three bars that light up in turn. */
.signal {
  display: inline-flex;
  align-items: flex-end;
  gap: 3px;
  height: 14px;
}

.signal i {
  width: 4px;
  background: var(--signal);
  opacity: 0.25;
  animation: signal 1.6s steps(1) infinite;
}

.signal i:nth-child(1) { height: 5px; }
.signal i:nth-child(2) { height: 9px; animation-delay: 0.25s; }
.signal i:nth-child(3) { height: 14px; animation-delay: 0.5s; }

@keyframes signal {
  0%, 60%, 100% { opacity: 0.25; }
  20%, 50% { opacity: 1; }
}

h1 {
  margin: 0 0 20px;
  font: 700 clamp(36px, 5.4vw, 62px)/1.05 var(--display);
  letter-spacing: -0.01em;
}

h1 em {
  font-style: normal;
  color: var(--parcel);
}

.lead {
  max-width: 34em;
  margin: 0 0 28px;
  font-size: 19px;
  color: var(--text-2);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.small {
  margin: 0;
  font-size: 14px;
  color: var(--text-3);
}

.hero-shot {
  display: flex;
  justify-content: center;
}

/* A pixel window frame around a screenshot of the app. */
.window {
  width: min(380px, 100%);
  padding: var(--px);
  background: var(--line);
  transform: rotate(1.5deg);
}

.window img {
  display: block;
  width: 100%;
}

.window-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  background: var(--ink-3);
  font: 400 11px/1 var(--tiny);
  color: var(--text-2);
}

.window-bar span {
  width: 8px;
  height: 8px;
  background: var(--text-3);
}

.window-bar span:first-child {
  background: var(--late);
}

.window-bar b {
  margin-left: 6px;
  font-weight: 400;
}

.window.small {
  transform: none;
  width: min(340px, 100%);
}

/* The taskbar the ant walks on. */
.taskbar {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  height: 48px;
  margin: 0 -16px;
  padding: 0 16px;
  background: #1b2040;
  border-top: var(--px) solid #2f3766;
}

.tb-start,
.tb-app {
  width: 30px;
  height: 30px;
  background: #2c335f;
}

.tb-start {
  background: var(--sky);
}

.tb-app.is-on {
  box-shadow: inset 0 calc(-1 * var(--px)) 0 var(--signal);
}

.tb-tray {
  margin-left: auto;
  font: 400 12px/1 var(--tiny);
  color: var(--text-2);
}

/* The ant itself: its canvas sits on the taskbar's top edge. */
.walker {
  position: absolute;
  bottom: 44px;
  left: 0;
  cursor: pointer;
  image-rendering: pixelated;
}

@media (max-width: 860px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .window {
    transform: none;
  }
}

/* ---- the value strip ------------------------------------------------------------ */

.strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 28px;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 44px 16px;
  border-bottom: var(--px) solid var(--ink-3);
}

.strip-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.strip-item p {
  margin: 0;
  font-size: 15.5px;
  line-height: 1.5;
  color: var(--text-2);
}

.strip-item strong {
  display: block;
  margin-bottom: 2px;
  font: 700 18px/1.3 var(--display);
  color: var(--text);
}

/* Small pixel icons, drawn in CSS: a stack of cards, a lock, a bolt. */
.px-icon {
  flex: none;
  width: 32px;
  height: 32px;
  margin-top: 2px;
  image-rendering: pixelated;
}

.px-stack {
  background:
    linear-gradient(var(--parcel), var(--parcel)) 4px 4px / 24px 6px no-repeat,
    linear-gradient(var(--sky), var(--sky)) 4px 13px / 24px 6px no-repeat,
    linear-gradient(var(--signal), var(--signal)) 4px 22px / 24px 6px no-repeat;
}

.px-lock {
  background:
    linear-gradient(var(--text-2), var(--text-2)) 10px 2px / 12px 4px no-repeat,
    linear-gradient(var(--text-2), var(--text-2)) 8px 6px / 4px 8px no-repeat,
    linear-gradient(var(--text-2), var(--text-2)) 20px 6px / 4px 8px no-repeat,
    linear-gradient(var(--signal), var(--signal)) 4px 14px / 24px 16px no-repeat,
    linear-gradient(var(--ink), var(--ink)) 14px 18px / 4px 8px no-repeat;
}

.px-bolt {
  background:
    linear-gradient(var(--parcel), var(--parcel)) 16px 2px / 8px 6px no-repeat,
    linear-gradient(var(--parcel), var(--parcel)) 12px 8px / 8px 6px no-repeat,
    linear-gradient(var(--parcel), var(--parcel)) 8px 14px / 16px 4px no-repeat,
    linear-gradient(var(--parcel), var(--parcel)) 14px 18px / 8px 6px no-repeat,
    linear-gradient(var(--parcel), var(--parcel)) 10px 24px / 8px 6px no-repeat;
}

@media (max-width: 860px) {
  .strip {
    grid-template-columns: 1fr;
    gap: 22px;
  }
}

/* ---- what it does -------------------------------------------------------------- */

.what,
.how,
.download {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 96px 16px;
}

.section-title {
  margin: 0 0 12px;
  font: 700 clamp(30px, 4vw, 44px)/1.1 var(--display);
}

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

.section-lead {
  max-width: 36em;
  margin: 0 0 56px;
  color: var(--text-2);
}

.feature {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 56px;
  align-items: center;
  padding: 40px 0;
  border-top: 2px dashed var(--ink-3);
}

.feature.flip .feature-copy {
  order: 2;
}

.feature h3 {
  margin: 10px 0 12px;
  font: 700 28px/1.15 var(--display);
}

.feature p {
  margin: 0 0 16px;
  color: var(--text-2);
}

.tag {
  display: inline-block;
  margin: 0;
  padding: 6px 10px;
  font: 400 11px/1 var(--tiny);
  color: var(--ink) !important;
}

.tag-blue { background: var(--sky); }
.tag-violet { background: var(--violet); }
.tag-green { background: var(--signal); }

.ticks {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
  font-size: 16px;
}

/* A pixel tick for each point. */
.ticks li {
  position: relative;
  padding-left: 28px;
}

.ticks li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 12px;
  height: 12px;
  background: var(--parcel);
  box-shadow: inset -4px -4px 0 var(--parcel-dark);
}

.feature-shot {
  display: flex;
  justify-content: center;
}

@media (max-width: 860px) {
  .feature {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .feature.flip .feature-copy {
    order: 0;
  }
}

/* ---- how it works -------------------------------------------------------------- */

.how {
  border-top: var(--px) solid var(--ink-3);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin: 40px 0 28px;
  padding: 0;
  list-style: none;
}

.steps li {
  padding: 28px 24px;
  background: var(--ink-2);
  box-shadow: inset 0 0 0 2px var(--ink-3);
}

.step-n {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  margin-bottom: 16px;
  font: 700 18px/1 var(--display);
  color: var(--ink);
  background: var(--parcel);
}

.steps h3 {
  margin: 0 0 8px;
  font: 700 22px/1.2 var(--display);
}

.steps p {
  margin: 0;
  font-size: 16px;
  color: var(--text-2);
}

.setup-note {
  margin: 0;
  color: var(--text-3);
}

@media (max-width: 860px) {
  .steps {
    grid-template-columns: 1fr;
  }
}

/* ---- download (coming soon) ----------------------------------------------------- */

.download {
  text-align: center;
  border-top: var(--px) solid var(--ink-3);
}

.download .section-lead {
  margin-left: auto;
  margin-right: auto;
}

.dl-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 160px;
}

.btn-big {
  padding: 20px 30px;
  font-size: 16px;
}

/* A pixel down-arrow. */
.dl-icon {
  width: 16px;
  height: 16px;
  background:
    linear-gradient(var(--ink), var(--ink)) 6px 0 / 4px 10px no-repeat,
    linear-gradient(var(--ink), var(--ink)) 2px 6px / 12px 4px no-repeat,
    linear-gradient(var(--ink), var(--ink)) 4px 10px / 8px 2px no-repeat,
    linear-gradient(var(--ink), var(--ink)) 0 14px / 16px 2px no-repeat;
}

/* The button lets go and falls. */
.btn.is-falling {
  pointer-events: none;
  animation: fall 900ms cubic-bezier(0.5, 0, 0.9, 0.4) forwards;
}

@keyframes fall {
  0% { transform: translateY(0) rotate(0); }
  12% { transform: translateY(-14px) rotate(-3deg); }
  100% { transform: translateY(420px) rotate(24deg); opacity: 0; }
}

.dl-soon {
  margin: 0;
  font: 400 clamp(16px, 2.6vw, 22px)/1.4 var(--tiny);
  color: var(--parcel);
  animation: appear 500ms steps(5) both;
}

@keyframes appear {
  from { clip-path: inset(0 100% 0 0); }
  to { clip-path: inset(0 0 0 0); }
}

.dl-bits {
  position: absolute;
  inset: -80px -40px;
  width: calc(100% + 80px);
  height: calc(100% + 160px);
  pointer-events: none;
}

/* ---- footer --------------------------------------------------------------------- */

.foot {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  padding: 28px max(16px, calc((100% - var(--wrap)) / 2));
  border-top: 2px solid var(--ink-3);
  font: 400 12px/1 var(--tiny);
  color: var(--text-3);
}

.foot span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.foot img {
  image-rendering: pixelated;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .signal i,
  .btn.is-falling,
  .dl-soon {
    animation: none;
  }
  .btn.is-falling {
    opacity: 0;
  }
}

.lost {
  display: grid;
  justify-items: center;
  gap: 8px;
  min-height: 100vh;
  align-content: center;
}

.lost img {
  image-rendering: pixelated;
}