/* VSTT — marketing site
   Palette and shapes derive from the app: graphite tile, white waveform + text caret,
   macOS system accent, and red reserved for one thing only (recording). */

:root {
  --paper:      #EFEFF2;
  --surface:    #FFFFFF;
  --surface-2:  #F7F7F9;
  --ink:        #16171A;
  --ink-2:      #4A4D55;
  --ink-3:      #7C808A;
  --line:       rgba(22, 23, 26, 0.13);
  --line-soft:  rgba(22, 23, 26, 0.07);
  --accent:     #0B62F0;
  --accent-ink: #FFFFFF;
  --accent-dim: rgba(11, 98, 240, 0.10);
  --rec:        #E03027;
  --graphite-a: #4A4C52;
  --graphite-b: #1B1C20;
  --shadow:     0 1px 2px rgba(16, 18, 22, .06), 0 12px 32px -12px rgba(16, 18, 22, .22);

  --font-ui: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto,
             "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, "Cascadia Mono",
               "Roboto Mono", Consolas, monospace;

  --gap: clamp(1.25rem, 3vw, 2rem);
  --pad-x: clamp(1.15rem, 5vw, 2.5rem);
  --radius: 14px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:      #0D0E10;
    --surface:    #17181C;
    --surface-2:  #1D1F23;
    --ink:        #F1F1F4;
    --ink-2:      #B3B7C0;
    --ink-3:      #838892;
    --line:       rgba(255, 255, 255, 0.13);
    --line-soft:  rgba(255, 255, 255, 0.07);
    --accent:     #4E9BFF;
    --accent-ink: #08121F;
    --accent-dim: rgba(78, 155, 255, 0.14);
    --rec:        #FF463B;
    --graphite-a: #55585F;
    --graphite-b: #24262B;
    --shadow:     0 1px 2px rgba(0, 0, 0, .5), 0 14px 40px -14px rgba(0, 0, 0, .7);
  }
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-ui);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 2px; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  width: 100%;
  max-width: 1060px;
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

/* ---------- shared type ---------- */

.eyebrow {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0 0 .85rem;
}

h1, h2, h3 { margin: 0; font-weight: 700; letter-spacing: -.022em; }

h1 {
  font-size: clamp(2.25rem, 6.2vw, 4rem);
  line-height: 1.03;
  font-weight: 800;
  letter-spacing: -.038em;
  text-wrap: balance;
}

h2 {
  font-size: clamp(1.5rem, 3.4vw, 2rem);
  line-height: 1.15;
  letter-spacing: -.03em;
}

h3 { font-size: 1.0625rem; line-height: 1.35; letter-spacing: -.012em; }

p { margin: 0; }

.lede {
  font-size: clamp(1.06rem, 2.1vw, 1.25rem);
  line-height: 1.5;
  color: var(--ink-2);
  max-width: 34em;
}

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

/* ---------- header ---------- */

.site-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.25rem;
  border-bottom: 1px solid var(--line-soft);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: .12em;
  font-family: var(--font-mono);
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: .3em;
  color: var(--ink);
  text-decoration: none;
}

.brand span { color: var(--accent); letter-spacing: 0; font-weight: 400; }

.lang {
  display: inline-flex;
  align-items: stretch;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
}

.lang a, .lang span {
  padding: .35rem .6rem;
  text-decoration: none;
  color: var(--ink-3);
  background: transparent;
}

.lang a:hover { color: var(--ink); background: var(--line-soft); }

.lang [aria-current="true"] { background: var(--ink); color: var(--paper); }

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
  padding-block: clamp(3rem, 8vw, 5.5rem) clamp(2.5rem, 6vw, 4rem);
}

.hero__copy { min-width: 0; }

.hero h1 { margin-bottom: 1.1rem; }
.hero h1 em { font-style: normal; color: var(--accent); }

.hero .lede { margin-bottom: 1.9rem; }

.hero__art {
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.tile {
  width: clamp(112px, 20vw, 160px);
  border-radius: 24%;
  box-shadow: var(--shadow);
}

/* ---------- download ---------- */

.get { display: flex; flex-wrap: wrap; align-items: center; gap: .9rem 1.1rem; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .8rem 1.3rem;
  border-radius: 11px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -.01em;
  text-decoration: none;
  box-shadow: var(--shadow);
  transition: transform .12s ease, filter .12s ease;
}

.btn:hover { filter: brightness(1.07); transform: translateY(-1px); }
.btn:active { transform: translateY(0); filter: brightness(.95); }

.btn__meta {
  font-family: var(--font-mono);
  font-size: .76rem;
  letter-spacing: .04em;
  opacity: .82;
  font-variant-numeric: tabular-nums;
}

.req-line {
  font-size: .875rem;
  color: var(--ink-3);
  line-height: 1.45;
  margin-top: 1rem;
  max-width: 32em;
}

/* ---------- HUD mock (the signature piece) ---------- */

.hud {
  width: 100%;
  max-width: 380px;
  display: flex;
  align-items: center;
  gap: .8rem;
  padding: .85rem 1.1rem;
  border-radius: 999px;
  background: linear-gradient(160deg, var(--graphite-a), var(--graphite-b));
  border: 1px solid rgba(255, 255, 255, .1);
  box-shadow: var(--shadow);
  color: #fff;
  overflow: hidden;
}

.hud__pip {
  flex: none;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--rec);
  box-shadow: 0 0 0 4px rgba(224, 48, 39, .18);
}

.meter { flex: none; display: flex; align-items: center; gap: 3px; height: 26px; }

.meter i {
  display: block;
  width: 3px;
  height: 100%;
  border-radius: 2px;
  background: #fff;
  opacity: .9;
  transform: scaleY(var(--h, .4));
  animation: pulse 900ms ease-in-out infinite alternate;
  animation-delay: var(--d, 0s);
}

@keyframes pulse {
  from { transform: scaleY(var(--h, .4)); }
  to   { transform: scaleY(var(--h2, .9)); }
}

.hud__text {
  flex: 1 1 0;
  min-width: 0;
  overflow: hidden;
  display: flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: .78rem;
  line-height: 1.25;
  letter-spacing: 0;
  color: rgba(255, 255, 255, .93);
  white-space: nowrap;
}

.hud__typed {
  flex: none;
  width: var(--len, 30ch);
  overflow: hidden;
  white-space: nowrap;
  animation: type 6.5s steps(32, end) infinite;
  animation-delay: -1.1s;
}

@keyframes type {
  0%   { width: 0; }
  55%  { width: var(--len, 30ch); }
  94%  { width: var(--len, 30ch); }
  100% { width: 0; }
}


.caret {
  flex: none;
  width: 2px;
  height: 1.05em;
  margin-left: 2px;
  background: #fff;
  animation: blink 1.06s steps(1, end) infinite;
}

@keyframes blink { 0%, 50% { opacity: 1; } 50.01%, 100% { opacity: 0; } }

/* ---------- sections ---------- */

.section { padding-block: clamp(2.75rem, 7vw, 4.5rem); border-top: 1px solid var(--line-soft); }

.section__head { max-width: 40em; margin-bottom: clamp(1.5rem, 3.5vw, 2.25rem); }
.section__head p { color: var(--ink-2); margin-top: .7rem; }

.grid { display: grid; gap: var(--gap); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }

.card {
  min-width: 0;
  padding: 1.25rem 1.3rem 1.35rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.card h3 { margin-bottom: .45rem; }
.card p { color: var(--ink-2); font-size: .9375rem; line-height: 1.5; }

.card__tag {
  display: block;
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: .8rem;
}

/* ---------- steps ---------- */

.step { min-width: 0; }

.step__key {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2.6rem;
  height: 2.2rem;
  padding-inline: .6rem;
  margin-bottom: .9rem;
  border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-bottom-width: 2px;
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--ink);
  box-shadow: 0 1px 0 var(--line-soft);
}

.step__key--go { border-color: var(--accent); color: var(--accent); background: var(--accent-dim); }

.step h3 { margin-bottom: .4rem; }
.step p { color: var(--ink-2); font-size: .9375rem; }

/* ---------- spec list ---------- */

.specs {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  overflow: hidden;
}

.specs > div {
  display: grid;
  grid-template-columns: minmax(0, 13rem) minmax(0, 1fr);
  gap: .35rem 1.5rem;
  padding: .9rem 1.25rem;
  border-top: 1px solid var(--line-soft);
}

.specs > div:first-child { border-top: 0; }

.specs dt {
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-3);
  padding-top: .18rem;
}

.specs dd { margin: 0; font-size: .9375rem; color: var(--ink); line-height: 1.5; }
.specs dd small { display: block; color: var(--ink-3); font-size: .84em; margin-top: .15rem; }

/* ---------- measurement readout ---------- */

.readout {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: .5rem 1.25rem;
  margin-top: 1.4rem;
  padding: .95rem 1.2rem;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  background: var(--surface-2);
  font-family: var(--font-mono);
  font-size: .8125rem;
  font-variant-numeric: tabular-nums;
  color: var(--ink-2);
}

.readout b { color: var(--ink); font-weight: 600; }
.readout .readout__note { color: var(--ink-3); }

/* ---------- closing ---------- */

.close { text-align: center; padding-block: clamp(3rem, 8vw, 5rem); }
.close h2 { margin-bottom: 1rem; }
.close .lede { margin-inline: auto; margin-bottom: 1.9rem; }
.close .get { justify-content: center; }
.close .req-line { margin-inline: auto; }

.site-foot {
  border-top: 1px solid var(--line-soft);
  padding-block: 2rem 3rem;
  font-size: .8125rem;
  line-height: 1.6;
  color: var(--ink-3);
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 2rem;
  justify-content: space-between;
}

.site-foot p { max-width: 46em; }

/* ---------- responsive ---------- */

@media (max-width: 900px) {
  .hero { grid-template-columns: minmax(0, 1fr); gap: 2.5rem; }
  .hero__art { align-items: flex-start; }
  .hud { max-width: 100%; }
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 560px) {
  body { font-size: 16px; }
  .grid--4, .grid--3, .grid--2 { grid-template-columns: minmax(0, 1fr); }
  .specs > div { grid-template-columns: minmax(0, 1fr); }
  .btn { width: 100%; justify-content: center; }
  .hud { gap: .6rem; padding: .75rem .95rem; }
  .hud__text { font-size: .7rem; }
  .meter { height: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  .meter i, .caret { animation: none; }
  .hud__typed { animation: none; }
  .btn { transition: none; }
  .btn:hover { transform: none; }
}