/* HA NOVA landing — cosmos night, cyan = local/client, amber = server/safe */

:root {
  --bg-0: #0A0E1A;
  --bg-1: #0D1525;
  --bg-2: #0A1628;
  --ink: #E8EDF2;
  --ink-soft: #B8CCE0;
  --cyan: #18BCF2;
  --amber: #FFB347;
  --hairline: rgba(184, 204, 224, 0.16);
  --panel: rgba(13, 21, 37, 0.6);
  --measure: 62ch;
  --ease-rise: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  color: var(--ink-soft);
  background: var(--bg-2) linear-gradient(180deg, var(--bg-0) 0%, var(--bg-1) 45%, var(--bg-2) 100%);
  font-family: -apple-system, 'Helvetica Neue', 'Segoe UI', sans-serif;
  font-size: 1.0625rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Sparse star dots, fixed so they hold still while the page scrolls.
   Four layers, three behaviors, like a real night sky: near-static fine grain,
   two shimmer layers offset in phase, and halo stars that softly flare. */
html::before,
html::after,
body::before,
body::after,
main::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

/* finest grain: barely moves */
html::before {
  background-image:
    radial-gradient(0.8px 0.8px at 48% 12%, rgba(255, 255, 255, 0.2) 50%, transparent 51%),
    radial-gradient(0.8px 0.8px at 5% 58%, rgba(255, 255, 255, 0.2) 50%, transparent 51%),
    radial-gradient(0.8px 0.8px at 36% 26%, rgba(255, 255, 255, 0.2) 50%, transparent 51%),
    radial-gradient(0.8px 0.8px at 64% 5%, rgba(255, 255, 255, 0.2) 50%, transparent 51%),
    radial-gradient(0.8px 0.8px at 27% 41%, rgba(255, 255, 255, 0.2) 50%, transparent 51%),
    radial-gradient(0.8px 0.8px at 88% 72%, rgba(255, 255, 255, 0.2) 50%, transparent 51%),
    radial-gradient(0.8px 0.8px at 52% 55%, rgba(255, 255, 255, 0.2) 50%, transparent 51%),
    radial-gradient(0.8px 0.8px at 14% 96%, rgba(255, 255, 255, 0.2) 50%, transparent 51%),
    radial-gradient(0.8px 0.8px at 76% 91%, rgba(255, 255, 255, 0.2) 50%, transparent 51%),
    radial-gradient(0.8px 0.8px at 41% 72%, rgba(255, 255, 255, 0.2) 50%, transparent 51%);
  animation: twinkle 21s ease-in-out -9s infinite alternate;
}

/* shimmer layer A */
body::before {
  background-image:
    radial-gradient(1px 1px at 12% 18%, rgba(255, 255, 255, 0.3) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 78% 9%, rgba(255, 255, 255, 0.3) 50%, transparent 51%),
    radial-gradient(1px 1px at 55% 32%, rgba(255, 255, 255, 0.2) 50%, transparent 51%),
    radial-gradient(1px 1px at 31% 61%, rgba(255, 255, 255, 0.25) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 90% 47%, rgba(255, 255, 255, 0.3) 50%, transparent 51%),
    radial-gradient(1px 1px at 8% 84%, rgba(255, 255, 255, 0.25) 50%, transparent 51%),
    radial-gradient(1px 1px at 67% 76%, rgba(255, 255, 255, 0.3) 50%, transparent 51%),
    radial-gradient(1px 1px at 95% 15%, rgba(255, 255, 255, 0.25) 50%, transparent 51%);
  animation: twinkle 9s ease-in-out infinite alternate;
}

/* shimmer layer B, phase-shifted */
html::after {
  background-image:
    radial-gradient(1.5px 1.5px at 42% 93%, rgba(255, 255, 255, 0.2) 50%, transparent 51%),
    radial-gradient(1px 1px at 23% 5%, rgba(255, 255, 255, 0.2) 50%, transparent 51%),
    radial-gradient(1px 1px at 96% 88%, rgba(255, 255, 255, 0.25) 50%, transparent 51%),
    radial-gradient(1px 1px at 72% 38%, rgba(255, 255, 255, 0.25) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 7% 31%, rgba(255, 255, 255, 0.25) 50%, transparent 51%),
    radial-gradient(1px 1px at 58% 82%, rgba(255, 255, 255, 0.25) 50%, transparent 51%),
    radial-gradient(2px 2px at 33% 47%, rgba(255, 255, 255, 0.25) 50%, transparent 51%),
    radial-gradient(1px 1px at 82% 58%, rgba(255, 255, 255, 0.2) 50%, transparent 51%);
  animation: twinkle 11s ease-in-out -6s infinite alternate;
}

/* halo stars: quiet most of the cycle, then a soft flare */
body::after {
  background-image:
    radial-gradient(7px 7px at 84% 28%, rgba(255, 255, 255, 0.1) 30%, transparent 70%),
    radial-gradient(2px 2px at 84% 28%, rgba(255, 255, 255, 0.3) 50%, transparent 51%),
    radial-gradient(7px 7px at 18% 44%, rgba(255, 255, 255, 0.1) 30%, transparent 70%),
    radial-gradient(1.5px 1.5px at 18% 44%, rgba(255, 255, 255, 0.3) 50%, transparent 51%),
    radial-gradient(6px 6px at 61% 68%, rgba(255, 255, 255, 0.1) 30%, transparent 70%),
    radial-gradient(1.5px 1.5px at 61% 68%, rgba(255, 255, 255, 0.3) 50%, transparent 51%);
  animation: flare 16s ease-in-out infinite;
}

@keyframes twinkle {
  from { opacity: 0.68; }
  to   { opacity: 1; }
}

/* two more halo stars on their own rhythm, so flares wander instead of syncing */
main::before {
  background-image:
    radial-gradient(6px 6px at 8% 11%, rgba(255, 255, 255, 0.1) 30%, transparent 70%),
    radial-gradient(1.5px 1.5px at 8% 11%, rgba(255, 255, 255, 0.3) 50%, transparent 51%),
    radial-gradient(7px 7px at 47% 80%, rgba(255, 255, 255, 0.1) 30%, transparent 70%),
    radial-gradient(2px 2px at 47% 80%, rgba(255, 255, 255, 0.3) 50%, transparent 51%);
  animation: flare 19s ease-in-out -7s infinite;
}

@keyframes flare {
  0%, 62%, 100% { opacity: 0.45; }
  76%, 84% { opacity: 1; }
}

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

h1, h2, h3 {
  color: var(--ink);
  line-height: 1.2;
  text-wrap: balance;
  margin: 0;
}

h2 {
  font-size: clamp(1.875rem, 1.3rem + 2.4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

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

code {
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 0.9em;
}

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

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

.hero {
  max-width: 900px;
  margin: 0 auto;
  padding: clamp(4rem, 12vh, 8rem) 1.5rem 0;
  text-align: center;
  position: relative;
}

/* a meteor crossing the open sky above the brand star: a long, shallow
   diagonal from upper right toward the left, ~1.6s visible */
.hero::before {
  content: "";
  position: absolute;
  top: 18px;
  right: 10%;
  width: 160px;
  height: 1px;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3) 85%, transparent);
  opacity: 0;
  /* -74s shifts the 80s cycle so the first streak crosses ~4s after load,
     while the visitor is still in the hero; after that, one per 80s */
  animation: meteor 80s linear -74s infinite;
}

@keyframes meteor {
  0%, 97.4% { opacity: 0; transform: rotate(173deg) translateX(0); }
  97.8% { opacity: 1; }
  99% { opacity: 1; }
  99.4%, 100% { opacity: 0; transform: rotate(173deg) translateX(620px); }
}

/* a quiet constellation right of the star; scrolls away with the hero */
.hero-constellation {
  position: absolute;
  top: 2rem;
  right: 0;
  width: min(34%, 300px);
  height: auto;
  z-index: -1;
  pointer-events: none;
}

.hero-constellation .cl {
  fill: none;
  stroke: rgba(255, 255, 255, 0.1);
  stroke-width: 1;
}

/* the lines draw themselves once, after the hero has risen */
.js .hero-constellation .cl {
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  animation: constellation-draw 1.4s ease-out 1.1s forwards;
}

@keyframes constellation-draw {
  to { stroke-dashoffset: 0; }
}

.hero-star {
  width: clamp(96px, 13vw, 148px);
  height: auto;
  margin: 0 auto;
  animation: rise 1s var(--ease-rise) both;
}

.hero-brand {
  margin: 1.5rem 0 0;
  color: var(--ink-soft);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.34em;
  padding-left: 0.34em; /* optically recenter the tracked wordmark */
  text-transform: uppercase;
  animation: rise 1s var(--ease-rise) 0.08s both;
}

.hero-tagline {
  margin: 1.1rem 0 0;
  font-size: clamp(1.75rem, 0.9rem + 4vw, 3.9rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.12;
  animation: rise 1s var(--ease-rise) 0.16s both;
}

.hero-sub {
  max-width: 46ch;
  margin: 1.75rem auto 0;
  font-size: clamp(1.0625rem, 1rem + 0.4vw, 1.25rem);
  animation: rise 1s var(--ease-rise) 0.26s both;
}

.hero-ctas {
  margin: 2.5rem 0 0;
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
  animation: rise 1s var(--ease-rise) 0.36s both;
}

@keyframes rise {
  from { opacity: 0.001; transform: translateY(16px); }
  to   { opacity: 1; transform: none; }
}

.btn {
  display: inline-block;
  padding: 0.85rem 1.9rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1.0625rem;
  text-decoration: none;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.16s ease-out;
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background: var(--cyan);
  color: #05121D;
}

.btn-primary:hover {
  background: #4FCDF6;
}

.btn-ghost {
  color: var(--ink);
  border: 1px solid var(--hairline);
}

.btn-ghost:hover {
  border-color: var(--ink-soft);
}

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

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

.section {
  max-width: 1040px;
  margin: 0 auto;
  padding: clamp(5rem, 13vh, 8.5rem) 1.5rem 0;
  scroll-margin-top: 2rem;
}

.section-lead {
  max-width: var(--measure);
  margin: 1.1rem 0 2.5rem;
  font-size: 1.125rem;
}

/* ---------- Authored neon scenes ---------- */

.scene {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.scene .d {
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.scene .c { stroke: var(--cyan); filter: drop-shadow(0 0 5px rgba(24, 188, 242, 0.4)); }
.scene .a { stroke: var(--amber); filter: drop-shadow(0 0 5px rgba(255, 179, 71, 0.4)); }
.scene .n { stroke: rgba(184, 204, 224, 0.5); }
.scene .dim { opacity: 0.75; }

.scene text {
  font-family: -apple-system, 'Helvetica Neue', 'Segoe UI', sans-serif;
  stroke: none;
}

.t-label { font-size: 17px; font-weight: 600; fill: var(--ink); }
.t-cyan { fill: var(--cyan); }
.t-amber { fill: var(--amber); }
.t-btn { font-size: 12px; font-weight: 600; fill: var(--cyan); }
.t-code { font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace; font-size: 22px; font-weight: 600; fill: var(--amber); letter-spacing: 0.1em; }
.t-code-sm { font-size: 14px; }

.cursor {
  animation: blink 1.1s steps(1) infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

/* ---------- Scenes added in revision 3 ---------- */

.t-chat { font-size: 19px; font-weight: 600; fill: var(--ink); }
.t-sub { font-size: 14px; font-weight: 500; fill: var(--ink-soft); }

/* a lit window: the one sanctioned fill, a faint amber glow behind the stroke */
.scene .lamp { fill: rgba(255, 179, 71, 0.6); }

/* in-flight dots and typing dots exist only while moving */
.pulse, .typing { opacity: 0; }
.typing { fill: var(--amber); }

.figure.chat { max-width: 26rem; margin: 0 0 2.5rem; }
.figure.chat figcaption { margin-top: 0.75rem; text-align: left; font-weight: 400; color: var(--ink-soft); font-size: 0.9375rem; }

.safety-head, .section-head {
  display: flex;
  align-items: center;
  gap: 2rem;
  justify-content: space-between;
}
.safety-head .section-lead, .section-head .section-lead { margin-bottom: 0; }
.safety-emblem, .section-emblem { flex: 0 0 auto; width: 120px; }

/* chat apps: three easy steps under the heading */
.steps-title { margin-top: 2.5rem; font-size: 1.25rem; }
.steps-title + .steps { margin-top: 1.25rem; }

.confirm-ways {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
  max-width: 30rem;
}
.confirm-ways li { text-align: center; }
.confirm-ways .scene { max-width: 13rem; margin: 0 auto 0.6rem; }
.confirm-ways span { display: block; color: var(--ink); font-weight: 600; line-height: 1.35; }
.workflow .confirm-fallback { margin-top: 1rem; font-size: 0.9375rem; }

/* folded detail: native <details>, a hairline and a cyan summary with a turning chevron */
.more {
  margin-top: 1.1rem;
  border-top: 1px solid var(--hairline);
  max-width: 52ch;
}
.section > .more { max-width: var(--measure); }
.more summary {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.7rem 0 0.2rem;
  color: var(--cyan);
  font-weight: 600;
  font-size: 0.9375rem;
  cursor: pointer;
  list-style: none;
}
.more summary::-webkit-details-marker { display: none; }
.more summary::before {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(-45deg);
  transition: transform 0.2s var(--ease-rise);
}
.more[open] summary::before { transform: rotate(45deg); }
.more summary:hover { color: #4FCDF6; }
.more summary:focus-visible { outline: 2px solid var(--cyan); outline-offset: 3px; border-radius: 4px; }
.more p, .workflow .more p { font-size: 0.9375rem; margin: 0.6rem 0 0; }

.demo-scene { max-width: 15rem; margin: 0 0 2rem; }

/* phones: wide-scene labels move out of the SVG into readable HTML */
.scene-legend { display: none; }
.t-cyan-text { color: var(--cyan); }
.t-amber-text { color: var(--amber); }

/* ---------- Scene motion: each scene plays its point once on scroll-in ----------
   Rest state = final frame. Only with JS and without a reduced-motion wish is
   the start frame hidden; .inview (IntersectionObserver, once) plays it. */

@media (prefers-reduced-motion: no-preference) {
  .press, .bubble-nova, .shield-body, .typing circle {
    transform-box: fill-box;
    transform-origin: center;
  }

  /* chat: the reply types, then lands with a check */
  .js .chat .bubble-nova, .js .chat .reply { opacity: 0; }
  .js .chat.inview .bubble-nova { animation: bubble-in 0.6s var(--ease-rise) 0.55s both; }
  .js .chat.inview .typing { animation: typing-show 1.25s linear 0.75s both; }
  .js .chat.inview .typing circle { animation: dot-bob 0.42s ease-in-out 0.8s 4 alternate both; }
  .js .chat.inview .typing circle:nth-child(2) { animation-delay: 0.94s; }
  .js .chat.inview .typing circle:nth-child(3) { animation-delay: 1.08s; }
  .js .chat.inview .reply { animation: fade-in 0.35s ease-out 2s both; }
  .js [data-reveal].chat .reply .d[pathLength] { transition-delay: 2.05s; transition-duration: 0.45s; }

  /* shield: the outline draws, settles into place, then the check draws */
  .js .safety-emblem.inview .shield-body { animation: settle 0.9s var(--ease-rise) 0.15s both; }
  .js [data-reveal].safety-emblem .check[pathLength] { transition-delay: 1s; transition-duration: 0.5s; }

  /* buttons that get pressed: Sign in, then Confirm and the phone tap */
  .js .steps .inview .press,
  .js .confirm-ways.inview .press { animation: press 0.42s var(--ease-rise) 1.15s both; }
  .js .confirm-ways.inview li:nth-child(2) .press { animation-delay: 1.85s; }
  .js [data-reveal].confirm-ways .press .d[pathLength] { transition-delay: 1.45s; transition-duration: 0.4s; }
  .js [data-reveal].confirm-ways li:nth-child(2) .press .d[pathLength] { transition-delay: 2.15s; }
  /* the checks wait for the pair itself, not for the workflow step around it */
  .js .confirm-ways:not(.inview) .d[pathLength] { stroke-dashoffset: 1; }

  /* a window lights up once the connection is made */
  .js .lamp { opacity: 0; }
  .js .steps .inview .lamp,
  .js .demo-scene.inview .lamp { animation: fade-in 0.7s ease-out 1.25s both; }
  .js #cloud .figure.inview .lamp { animation: fade-in 0.7s ease-out 2.2s both; }
  .js #chat-apps .steps .inview .lamp { animation-delay: 1.6s; }

  /* a request travels: your computer, the relay, then Home Assistant lights up */
  .js .flow.inview .pulse-c { animation: pulse-c 1s ease-in-out 1.3s both; }
  .js .flow.inview .pulse-a { animation: pulse-a 0.8s ease-in-out 2.3s both; }
  .js .flow.inview .lamp { animation: fade-in 0.7s ease-out 3s both; }

  /* demo: the reset arrow comes around, its head lands last */
  .js .demo-scene .arrowhead { opacity: 0; }
  .js .demo-scene.inview .arrowhead { animation: fade-in 0.3s ease-out 2.1s both; }

}

@keyframes bubble-in {
  from { opacity: 0; transform: translateY(10px) scale(0.98); }
  to   { opacity: 1; transform: none; }
}
@keyframes typing-show {
  0% { opacity: 0; }
  8%, 88% { opacity: 1; }
  100% { opacity: 0; }
}
@keyframes dot-bob {
  to { transform: translateY(-4px); }
}
@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes settle {
  from { transform: translateY(-8px) scale(1.06); }
  to   { transform: none; }
}
@keyframes press {
  0%, 100% { transform: none; }
  45% { transform: scale(0.9); }
}
@keyframes pulse-c {
  0%   { opacity: 0; transform: none; }
  12%, 88% { opacity: 1; }
  100% { opacity: 0; transform: translateX(232px); }
}
@keyframes pulse-a {
  0%   { opacity: 0; transform: none; }
  12%, 88% { opacity: 1; }
  100% { opacity: 0; transform: translateX(178px); }
}

.figure {
  margin: 2.5rem 0 0;
  padding: 0;
}

.figure figcaption {
  margin-top: 1rem;
  color: var(--ink);
  font-weight: 600;
  text-align: center;
}

/* ---------- Scroll reveal & line drawing ---------- */

.js [data-reveal] {
  opacity: 0.001;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease-rise), transform 0.7s var(--ease-rise);
}

.js [data-reveal].inview {
  opacity: 1;
  transform: none;
}

.js [data-reveal] .d[pathLength] {
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 1s ease-out 0.25s;
}

.js [data-reveal].inview .d[pathLength] {
  stroke-dashoffset: 0;
}

.js [data-reveal] .d.slow[pathLength] {
  transition-duration: 1.4s;
  transition-delay: 0.75s;
}

/* gentle stagger inside groups */
.js .steps li:nth-child(2),
.js .says-row:nth-child(3),
.js .rules li:nth-child(2) { transition-delay: 0.08s; }
.js .steps li:nth-child(3),
.js .says-row:nth-child(4),
.js .rules li:nth-child(3) { transition-delay: 0.16s; }
.js .says-row:nth-child(5),
.js .rules li:nth-child(4) { transition-delay: 0.24s; }
.js .says-row:nth-child(6) { transition-delay: 0.32s; }
.js .says-row:nth-child(7) { transition-delay: 0.4s; }
.js .says-row:nth-child(8) { transition-delay: 0.48s; }

/* Pairing steps */

.steps {
  list-style: none;
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
  margin: 2.5rem 0 0;
  padding: 0;
}

.steps li {
  counter-increment: step;
  border-top: 1px solid var(--hairline);
  padding-top: 1.5rem;
}

.steps .scene {
  margin-bottom: 1.25rem;
}

.steps li::before {
  content: counter(step);
  display: block;
  color: var(--cyan);
  font-weight: 700;
  font-size: 0.9375rem;
  margin-bottom: 0.9rem;
}

.steps strong {
  color: var(--ink);
  display: block;
  margin-bottom: 0.2rem;
}

/* You say → what happens */

.says {
  border-top: 1px solid var(--hairline);
}

.says-head {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 2.5rem;
  padding: 1rem 0 0.4rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.says-you { color: var(--cyan); }
.says-nova { color: var(--amber); }

.says-row {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 2.5rem;
  padding: 1.4rem 0;
  border-bottom: 1px solid var(--hairline);
}

.says-quote {
  margin: 0;
  color: var(--ink);
  font-size: 1.1875rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

.says-result {
  margin: 0;
}

/* Safety workflow */

.section-safety {
  max-width: 760px;
}

.workflow {
  list-style: none;
  counter-reset: wf;
  margin: 3rem 0 0;
  padding: 0;
  position: relative;
}

.workflow::before {
  content: "";
  position: absolute;
  left: 17px;
  top: 10px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, rgba(255, 179, 71, 0.7), rgba(255, 179, 71, 0.15));
  transform-origin: top;
}

/* the amber thread draws itself down as the chain reveals */
.js .workflow::before {
  transform: scaleY(0);
  transition: transform 1.6s var(--ease-rise) 0.2s;
}

.js .workflow.inview::before {
  transform: scaleY(1);
}

.workflow > li {
  counter-increment: wf;
  position: relative;
  padding: 0 0 2.5rem 4rem;
}

.workflow > li:last-child { padding-bottom: 0; }

.workflow > li::before {
  content: counter(wf);
  position: absolute;
  left: 0;
  top: -2px;
  width: 35px;
  height: 35px;
  border-radius: 50%;
  border: 1px solid rgba(255, 179, 71, 0.55);
  background: var(--bg-1);
  color: var(--amber);
  font-weight: 700;
  font-size: 0.9375rem;
  display: grid;
  place-items: center;
}

.js .workflow > li:nth-child(2) { transition-delay: 0.12s; }
.js .workflow > li:nth-child(3) { transition-delay: 0.24s; }
.js .workflow > li:nth-child(4) { transition-delay: 0.36s; }
.js .workflow > li:nth-child(5) { transition-delay: 0.48s; }
.js .workflow > li:nth-child(6) { transition-delay: 0.6s; }
.js .workflow > li:nth-child(7) { transition-delay: 0.72s; }
.js .workflow > li:nth-child(8) { transition-delay: 0.84s; }

.workflow h3 {
  font-size: 1.25rem;
  font-weight: 600;
}

.workflow p {
  margin: 0.35rem 0 0;
  max-width: 52ch;
}

.workflow p + p { margin-top: 0.75rem; }

.workflow code,
.rules code {
  color: var(--amber);
  background: rgba(255, 179, 71, 0.1);
  border: 1px solid rgba(255, 179, 71, 0.3);
  border-radius: 5px;
  padding: 0.05em 0.35em;
}

.rules-title {
  margin-top: 4rem;
  font-size: 1.25rem;
}

.rules {
  list-style: none;
  margin: 1.25rem 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.75rem 2.5rem;
}

.rules li {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  border-top: 1px solid var(--hairline);
  padding-top: 1.1rem;
}

.rules svg,
.callout svg {
  flex: 0 0 auto;
  width: 22px;
  height: 22px;
  margin-top: 0.15rem;
  fill: none;
  stroke: var(--amber);
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.rules p { margin: 0; }

.note {
  margin: 1.75rem 0 0;
  font-size: 0.9375rem;
  color: var(--ink-soft);
}

.section > .note { max-width: var(--measure); }

/* Cloud / Beta */

.beta {
  display: inline-block;
  vertical-align: 0.35em;
  margin-left: 0.6rem;
  padding: 0.15rem 0.65rem;
  border: 1px solid rgba(255, 179, 71, 0.55);
  border-radius: 999px;
  color: var(--amber);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ---------- Get started: the install console ----------
   The page's call to action. A panel (Panel Night) framed by one cyan neon
   line: it is drawn like a scene, because it is your computer. The line
   draws itself as the block scrolls in; copying sweeps the command. */

.section-start > h2,
.section-start > .section-lead { text-align: center; margin-inline: auto; }

.section-start > .section-lead { margin-bottom: 2.25rem; color: var(--ink); text-wrap: balance; }

/* land the hero button on the heading, not on the section's top padding */
#get-started { scroll-margin-top: calc(1.5rem - clamp(5rem, 13vh, 8.5rem)); }

.console {
  position: relative;
  padding: clamp(1.25rem, 3.2vw, 2.5rem);
  border-radius: 24px;
  background:
    radial-gradient(120% 90% at 0% 0%, rgba(24, 188, 242, 0.07), transparent 60%),
    var(--panel);
}

/* a little wider than the text column, so the command fits on one line */
@media (min-width: 1200px) {
  .console { width: 1120px; margin-inline: calc(50% - 560px); }
}

.console-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.scene.console-frame .d { stroke-width: 1.5; }

.js [data-reveal] .console-frame .d[pathLength] {
  transition-duration: 1.6s;
  transition-delay: 0.1s;
  transition-timing-function: var(--ease-rise);
}

.console-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  margin-bottom: 1.75rem;
}

.console-side {
  margin: 0;
  color: var(--cyan);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* tabs only with JS; without it, all three commands are listed */
.os-tabs { display: none; }

.js .os-tabs {
  display: inline-flex;
  gap: 0.25rem;
  padding: 0.25rem;
  border: 1px solid var(--hairline);
  border-radius: 999px;
}

.os-tabs button {
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--ink-soft);
  font: 600 1rem/1 -apple-system, 'Helvetica Neue', 'Segoe UI', sans-serif;
  padding: 0.6rem 1.15rem;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.os-tabs button:hover { color: var(--ink); }

.os-tabs button[aria-selected="true"] {
  color: var(--ink);
  background: rgba(24, 188, 242, 0.14);
  border-color: rgba(24, 188, 242, 0.55);
}

.os-tabs button:focus-visible,
.copy-cmd:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.console-phone {
  margin: -0.75rem 0 1.25rem;
  color: var(--ink);
  font-size: 0.9375rem;
}

/* all panels share one grid cell, so switching never moves the page */
.js .os-panels { display: grid; }
.js .os-panel { grid-area: 1 / 1; }
.js .os-panel:not(.is-active) { visibility: hidden; }
.js .os-name { display: none; }

.os-panel + .os-panel { margin-top: 2rem; }
.js .os-panel + .os-panel { margin-top: 0; }

.os-name {
  margin: 0 0 0.25rem;
  font-size: 1.25rem;
}

.os-where {
  margin: 0 0 0.9rem;
  font-size: 1.0625rem;
}

.os-where strong { color: var(--ink); font-weight: 600; }

.cmd {
  position: relative;
  display: flex;
  gap: 0.75em;
  align-items: baseline;
  padding: 1.1rem 1.25rem;
  border: 1px solid var(--hairline);
  border-radius: 10px;
  background: rgba(5, 18, 29, 0.55);
  font-family: ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: clamp(0.9375rem, 0.55rem + 0.75vw, 1.125rem);
  line-height: 1.55;
  overflow: hidden;
}

.cmd-prompt {
  flex: 0 0 auto;
  color: var(--cyan);
  user-select: none;
  -webkit-user-select: none;
}

.cmd pre {
  margin: 0;
  min-width: 0;
  font: inherit;
  /* the whole line stays visible: it wraps instead of hiding off the edge */
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.cmd code {
  color: var(--ink);
  font: inherit;
}

.cmd ::selection { background: rgba(24, 188, 242, 0.35); color: var(--ink); }

.cmd-cursor {
  display: inline-block;
  width: 0.55em;
  height: 1.1em;
  margin-left: 0.35em;
  /* takes no line width, so it never wraps onto a line of its own */
  margin-right: -0.9em;
  vertical-align: -0.18em;
  background: rgba(24, 188, 242, 0.7);
}

/* the sweep: a band of cyan light runs over the copied line once */
.cmd::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(24, 188, 242, 0.22) 45%, rgba(24, 188, 242, 0.22) 55%, transparent);
  opacity: 0;
  transform: translateX(-100%);
  pointer-events: none;
}

/* copying needs JS; without it, the line can still be selected by hand */
.copy-cmd { display: none; }

.js .copy-cmd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-width: 10rem;
  margin-top: 1.25rem;
  padding: 0.85rem 1.9rem;
  border: 1px solid var(--cyan);
  border-radius: 999px;
  background: var(--cyan);
  color: #05121D;
  font: 600 1.0625rem/1.2 -apple-system, 'Helvetica Neue', 'Segoe UI', sans-serif;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.16s ease-out;
}

.copy-cmd:hover { background: #4FCDF6; border-color: #4FCDF6; }

.copy-cmd:active { transform: scale(0.97); }

.copy-cmd svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.75;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.copy-cmd .i-check { display: none; }

/* copied: the line is now in your hands; amber like every "done" state */
.copy-cmd.copied {
  background: transparent;
  border-color: rgba(255, 179, 71, 0.55);
  color: var(--amber);
}

.copy-cmd.copied .i-copy { display: none; }
.copy-cmd.copied .i-check { display: inline; }

.console-next {
  margin: 1.5rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--hairline);
  color: var(--ink-soft);
  font-size: 1.0625rem;
}

.start-alt {
  margin: 1.5rem 0 0;
  text-align: center;
  font-size: 1rem;
}

.section-start > .start-alt + .note { margin-top: 3.5rem; }

@media (prefers-reduced-motion: no-preference) {
  .js .cmd-cursor { animation: blink 1.1s steps(1) infinite; }

  .copy-cmd.copied .i-check {
    stroke-dasharray: 1;
    animation: check-draw 0.45s var(--ease-rise) both;
  }

  .os-panel:has(.copied) .cmd::after {
    animation: sweep 0.9s var(--ease-rise) both;
  }
}

@keyframes check-draw {
  from { stroke-dashoffset: 1; }
  to { stroke-dashoffset: 0; }
}

@keyframes sweep {
  0% { opacity: 1; transform: translateX(-100%); }
  70% { opacity: 1; }
  100% { opacity: 0; transform: translateX(100%); }
}

.clients-label {
  margin: 3rem 0 0.75rem;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.9375rem;
}

.clients {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.clients li {
  border: 1px solid var(--hairline);
  border-radius: 999px;
  padding: 0.35rem 1rem;
  font-size: 0.9375rem;
}

.preview {
  color: var(--cyan);
  font-size: 0.8125rem;
  margin-left: 0.3rem;
}

/* ---------- Demo page (demo/index.html) ---------- */

/* the shared-account warning: amber, because it guards the visitor */
.callout {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  max-width: 40rem;
  margin: 2.25rem auto 0;
  padding: 1.1rem 1.25rem;
  border: 1px solid rgba(255, 179, 71, 0.55);
  border-radius: 10px;
  background: rgba(255, 179, 71, 0.06);
  color: var(--ink);
  text-align: left;
}

.js .callout { animation: rise 1s var(--ease-rise) 0.31s both; }

.callout p { margin: 0; }

/* login + next reset, right under the demo buttons */
.js .hero .note {
  animation: rise 1s var(--ease-rise) 0.42s both;
}
.hero .note + .note { margin-top: 0.6rem; }
.note code { white-space: nowrap; }

.callout strong {
  display: block;
  color: var(--amber);
}

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

.footer {
  max-width: 1040px;
  margin: 0 auto;
  padding: clamp(5rem, 13vh, 8rem) 1.5rem 3rem;
}

.footer-links {
  margin: 0;
  border-top: 1px solid var(--hairline);
  padding-top: 2rem;
  display: flex;
  gap: 1.75rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--ink-soft);
}

.footer-links a:hover {
  color: var(--ink);
}

/* ---------- Privacy page ---------- */

.legal {
  max-width: calc(var(--measure) + 3rem);
  margin: 0 auto;
  padding: clamp(3rem, 8vh, 5rem) 1.5rem 0;
}

.legal-home {
  color: var(--ink);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.34em;
  text-decoration: none;
}

.legal h1 {
  margin-top: 2.5rem;
  font-size: clamp(1.875rem, 1.3rem + 2.4vw, 2.75rem);
  letter-spacing: -0.02em;
}

.legal h2 {
  margin-top: 2.5rem;
  padding-top: 1.1rem;
  border-top: 1px solid var(--hairline);
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: 0;
}

.legal p { margin: 0.75rem 0 0; }

.legal strong { color: var(--ink); }

.legal + .footer { max-width: calc(var(--measure) + 3rem); }

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .rules { grid-template-columns: 1fr; gap: 1.25rem; }

  /* the hero corner is too close to the text on small screens */
  .hero::before, .hero-constellation { display: none; }
}

@media (max-width: 720px) {
  .says-head { display: none; }

  .says-row {
    grid-template-columns: 1fr;
    gap: 0.5rem;
    padding: 1.25rem 0;
  }

  .says-quote::before {
    content: "You say";
    display: block;
    color: var(--cyan);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 0.3rem;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .steps .scene {
    max-width: 17rem;
  }

  .workflow > li { padding-left: 3.25rem; }

  .btn { width: 100%; max-width: 20rem; text-align: center; }

  .scene-wide text { display: none; }
  .scene-legend {
    display: grid;
    gap: 0.35rem 1rem;
    margin-top: 0.9rem;
    color: var(--ink);
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.35;
  }
  .scene-legend small { display: block; color: var(--ink-soft); font-size: 0.8125rem; font-weight: 400; }
  .legend-flow { grid-template-columns: repeat(3, minmax(0, 1fr)); text-align: center; }
  .legend-cloud { grid-template-columns: 1fr 1fr; }
  .legend-cloud span:nth-child(even) { text-align: right; }

  .safety-head, .section-head { flex-direction: column-reverse; align-items: flex-start; gap: 1.25rem; }
  .safety-emblem, .section-emblem { width: 76px; }

  .confirm-ways { gap: 0.9rem; }

  .copy-cmd { width: 100%; }
  .console-bar { margin-bottom: 1.25rem; }
  .js .os-tabs { display: flex; width: 100%; }
  .os-tabs button { flex: 1 1 0; min-height: 44px; padding-inline: 0.5rem; }
  .confirm-ways span { font-size: 0.9375rem; }
}

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

  .hero-star, .hero-brand, .hero-tagline, .hero-sub, .hero-ctas, .js .callout, .js .hero .note { animation: none; }

  html::before, html::after, body::before, body::after, main::before { animation: none; }

  .hero::before { animation: none; }

  .js .hero-constellation .cl { animation: none; stroke-dashoffset: 0; }

  .cursor { animation: none; }

  .js [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .js [data-reveal] .d[pathLength] {
    stroke-dashoffset: 0;
    transition: none;
  }

  .js .workflow::before {
    transform: none;
    transition: none;
  }
}

/* demo page: which app. Only the chosen panel shows (with JS), so a short one leaves no gap. */
.js .app-panels { display: block; }
.js .app-panels .os-panel:not(.is-active) { display: none; }
.app-tabs { flex-wrap: wrap; justify-content: center; }
.app-panels .steps { margin-top: 1.5rem; }
.app-step { margin: 1.75rem 0 0.75rem; font-size: 1.0625rem; }
.app-step strong { color: var(--ink); }
.app-panels .copy-cmd { margin-top: 0.75rem; }
.says-list { margin: 1rem 0 0; padding-left: 1.4rem; font-size: 1.0625rem; color: var(--ink); }
.says-list li + li { margin-top: 0.5rem; }
#try .console-bar { margin-top: 1.25rem; }
#try .callout { margin: 0 0 2.5rem; }
@media (prefers-reduced-motion: no-preference) {
  /* three commands in one panel: sweep only the one copied */
  .app-panels .os-panel:has(.copied) .cmd::after { animation: none; }
  .app-panels .cmd:has(+ .copy-cmd.copied)::after { animation: sweep 0.9s var(--ease-rise) both; }
}