/* ─────────────────────────── tokens ─────────────────────────── */
:root {
  --bg:        #0a0a0c;
  --bg-soft:   #111114;
  --bg-card:   #15161a;
  --line:      #232329;
  --line-2:    #2f2f37;
  --text:      #f3f3f5;
  --text-2:    #aaaab2;
  --text-3:    #6c6c74;
  --text-4:    #46464e;
  --accent:    #0a84ff;
  --accent-2:  #d97757;
  --success:   #1f8a5b;
  --warning:   #d97757;
  --error:     #e5484d;

  /* Share Tech is the display + body voice; Share Tech Mono handles all
     technical / mono labels and chips. Both from Google Fonts. */
  --serif: "Share Tech", "Helvetica Neue", Arial, sans-serif;
  --mono:  "Share Tech Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --content: 1320px;
  --gutter:  clamp(20px, 4vw, 56px);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--serif);
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: geometricPrecision;
  letter-spacing: 0;          /* Share Tech is already pretty tight */
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
/* Share Tech has no italic — fake the editorial cadence with letter-spacing + color */
em { font-style: normal; letter-spacing: 0.04em; color: var(--text); }
code { font-family: var(--mono); font-size: 0.92em; color: var(--accent); }

.mono { font-family: var(--mono); font-feature-settings: "tnum" 1, "zero" 1; letter-spacing: 0; }

/* ─────────────────────────── grain overlay ─────────────────────────── */
.grain {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 100;
  opacity: 0.04;
  mix-blend-mode: screen;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='200' height='200' filter='url(%23n)' opacity='1'/></svg>");
  background-size: 200px 200px;
}

/* ─────────────────────────── topbar ─────────────────────────── */
.topbar {
  position: sticky; top: 0; z-index: 50;
  display: grid; grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 16px var(--gutter);
  background: color-mix(in oklab, var(--bg) 78%, transparent);
  backdrop-filter: blur(20px) saturate(140%);
  border-bottom: 1px solid var(--line);
}
.brand { display: inline-flex; align-items: center; gap: 10px; }
.brand-mark { width: 28px; height: 28px; border-radius: 7px; display: block; }
/* Default theme is dark — show the dark logo, hide the light one. */
.brand-mark--light { display: none; }
[data-theme="light"] .brand-mark--dark  { display: none; }
[data-theme="light"] .brand-mark--light { display: block; }

.top-actions { justify-self: end; display: inline-flex; align-items: center; gap: 10px; }
.theme-toggle {
  appearance: none; border: 1px solid var(--line-2);
  background: transparent; color: var(--text-2);
  width: 30px; height: 30px; border-radius: 8px;
  display: inline-grid; place-items: center;
  cursor: pointer;
  transition: color 200ms ease, border-color 200ms ease, background 200ms ease;
}
.theme-toggle:hover { color: var(--text); background: var(--bg-card); border-color: var(--text-3); }
.theme-toggle__icon { width: 14px; height: 14px; }
.theme-toggle__icon--sun  { display: none; }
[data-theme="light"] .theme-toggle__icon--moon { display: none; }
[data-theme="light"] .theme-toggle__icon--sun  { display: block; }
.brand-text {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 20px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.topnav {
  display: flex; gap: 24px; justify-self: center;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.topnav a {
  color: var(--text-2);
  transition: color 200ms ease;
}
.topnav a:hover { color: var(--text); }

.cta {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 10px 16px;
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  border: 1px solid transparent;
  transition: transform 200ms ease, background 200ms ease, border-color 200ms ease;
  white-space: nowrap;
}
.cta--mini { padding: 8px 14px; font-size: 12px; justify-self: end; }
.cta--primary {
  background: var(--accent);
  color: white;
  border-color: color-mix(in oklab, var(--accent) 70%, white 20%);
  box-shadow: 0 1px 0 rgba(255,255,255,0.18) inset, 0 12px 32px -8px color-mix(in oklab, var(--accent) 70%, transparent);
}
.cta--primary:hover {
  transform: translateY(-1px);
  background: color-mix(in oklab, var(--accent) 90%, white 10%);
}
.cta--ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--line-2);
}
.cta--ghost:hover { background: var(--bg-card); border-color: var(--text-3); }
.cta--large { padding: 16px 22px; font-size: 14px; }
.cta__chip {
  background: rgba(0,0,0,0.25);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 10.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  opacity: 0.85;
}

/* ─────────────────────────── hero ─────────────────────────── */
.hero {
  max-width: var(--content);
  margin: 0 auto;
  padding: clamp(40px, 8vw, 96px) var(--gutter) 40px;
  position: relative;
}
.hero__idx {
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.hero__meta {
  position: absolute; top: clamp(40px, 8vw, 96px); right: var(--gutter);
  display: flex; flex-direction: column; gap: 6px;
  font-size: 11px; color: var(--text-3);
  text-align: right;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.hero__title {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(64px, 13vw, 200px);   /* Share Tech is narrow — push the scale */
  line-height: 0.95;
  letter-spacing: -0.01em;
  margin: 0 0 36px;
  text-transform: uppercase;             /* Share Tech sings in all caps */
}
.hero__title .line { display: block; }
.hero__title .line--italic {
  color: var(--text-2);
  letter-spacing: 0.05em;
  padding-left: clamp(20px, 6vw, 88px);
}
.hero__title .line--accent {
  color: var(--accent);
  letter-spacing: -0.02em;
}

.hero__lede {
  max-width: 640px;
  font-size: clamp(17px, 1.6vw, 22px);
  line-height: 1.55;
  color: var(--text-2);
  margin: 0 0 36px;
}
.hero__lede em { color: var(--text); font-style: italic; }

.hero__ctas { display: inline-flex; gap: 12px; flex-wrap: wrap; }

/* ───── waveform ───── */
.wave {
  position: relative;
  margin-top: clamp(60px, 10vw, 120px);
  padding: 24px 0 30px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.wave svg {
  width: 100%;
  height: clamp(120px, 18vw, 200px);
  display: block;
}
.wave-bars rect {
  fill: var(--text-3);
  opacity: 0.7;
  transition: fill 200ms ease, opacity 200ms ease;
}
.wave-bars rect.played {
  fill: var(--accent);
  opacity: 1;
}
.wave-axis { stroke: var(--line); stroke-dasharray: 2 4; }
.wave__ruler {
  display: flex; justify-content: space-between;
  font-size: 10px; color: var(--text-3);
  margin-top: 12px;
  letter-spacing: 0.04em;
}
.wave__chip {
  position: absolute; top: 24px; left: 0;
  background: color-mix(in oklab, var(--accent) 18%, var(--bg));
  color: var(--accent);
  border: 1px solid color-mix(in oklab, var(--accent) 50%, transparent);
  border-radius: 4px;
  padding: 4px 8px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

/* ─────────────────────────── section heads ─────────────────────────── */
.section-head {
  max-width: var(--content);
  margin: 0 auto;
  padding: 80px var(--gutter) 32px;
}
.section-head__idx {
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.section-head h2 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(44px, 6.5vw, 96px);
  line-height: 1.02;
  letter-spacing: -0.005em;
  margin: 0;
  text-transform: uppercase;
}
.section-head h2 em {
  color: var(--text-2);
  letter-spacing: 0.04em;
}

/* ─────────────────────────── pillars ─────────────────────────── */
.pillars__grid {
  max-width: var(--content);
  margin: 0 auto;
  padding: 0 var(--gutter) 32px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.pillar {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 28px 26px;
  position: relative;
  overflow: hidden;
  transition: transform 250ms ease, border-color 250ms ease;
}
.pillar:hover {
  transform: translateY(-2px);
  border-color: var(--line-2);
}
.pillar::after {
  content: "";
  position: absolute; top: 0; right: 0;
  width: 60%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.4;
}
.pillar__num {
  font-size: 10.5px;
  color: var(--accent);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.pillar h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(22px, 2vw, 28px);
  letter-spacing: 0;
  line-height: 1.18;
  margin: 0 0 12px;
  text-transform: uppercase;
}
.pillar p {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--text-2);
  margin: 0;
}

/* ─────────────────────────── flow / pipeline ─────────────────────────── */
.flow__steps {
  max-width: var(--content);
  margin: 0 auto;
  padding: 0 var(--gutter) 32px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  list-style: none;
}
.flow__steps li {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 22px 22px 18px;
  display: flex; flex-direction: column;
  gap: 8px;
}
.flow__step-num {
  font-size: 10px;
  color: var(--text-3);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.flow__steps h4 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 24px;
  letter-spacing: 0.01em;
  margin: 0;
  text-transform: uppercase;
}
.flow__steps p {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--text-2);
  margin: 0 0 10px;
}
.flow__bar {
  height: 4px;
  background: var(--line);
  border-radius: 4px;
  overflow: hidden;
  margin-top: auto;
}
.flow__bar > div {
  height: 100%;
  width: calc(var(--p) * 100%);
  background: var(--accent);
  border-radius: 4px;
  box-shadow: 0 0 0 1px rgba(10, 132, 255, 0.6) inset;
}
.flow__phase {
  font-size: 10.5px;
  color: var(--text-3);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* ─────────────────────────── engines matrix ─────────────────────────── */
.matrix {
  max-width: var(--content);
  margin: 0 auto;
  padding: 0 var(--gutter) 32px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.matrix__col {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 24px;
}
.matrix__head {
  display: flex; align-items: center; gap: 10px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 14px;
}
.matrix__head h3 {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 22px;
  letter-spacing: 0.02em;
  margin: 0;
  text-transform: uppercase;
}
.dot { width: 8px; height: 8px; border-radius: 50%; }
.dot--local { background: var(--accent); box-shadow: 0 0 12px var(--accent); }
.dot--cloud { background: var(--accent-2); box-shadow: 0 0 12px var(--accent-2); }
.matrix ul { margin: 0; padding: 0; list-style: none; }
.matrix li {
  display: grid;
  grid-template-columns: minmax(140px, 1.4fr) minmax(160px, 1.6fr);
  gap: 4px 24px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}
.matrix li:last-child { border-bottom: none; }
.m-name {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 18px;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}
.m-tier {
  align-self: center;
  font-size: 11.5px;
  color: var(--accent);
  letter-spacing: 0.02em;
}
.m-note {
  grid-column: 1 / -1;
  color: var(--text-2);
  font-size: 13.5px;
  line-height: 1.5;
}

/* ─────────────────────────── privacy ─────────────────────────── */
.privacy {
  background:
    radial-gradient(900px 400px at 100% 0%, color-mix(in oklab, var(--accent) 10%, transparent), transparent 60%),
    var(--bg-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  margin: 64px 0;
}
.privacy__list {
  max-width: var(--content);
  margin: 0 auto;
  padding: 0 var(--gutter) 64px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px 56px;
}
.privacy__list > div { border-top: 1px solid var(--line); padding-top: 18px; }
.privacy__list dt {
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.privacy__list dd {
  margin: 0;
  font-size: 17px;
  line-height: 1.55;
  color: var(--text);
}

/* ─────────────────────────── numbers ─────────────────────────── */
.numbers {
  max-width: var(--content);
  margin: 0 auto;
  padding: 24px var(--gutter) 100px;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
}
.num {
  padding: 16px;
  border-right: 1px solid var(--line);
  text-align: center;
}
.num:last-child { border-right: none; }
.num__big {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(56px, 7vw, 112px);
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  color: var(--text);
}
.num__plus {
  color: var(--accent);
  font-size: 0.7em;
  vertical-align: 0.15em;
  margin-left: 2px;
}
.num__label {
  font-size: 10.5px;
  color: var(--text-3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ─────────────────────────── bottom CTA ─────────────────────────── */
.bottom-cta {
  max-width: var(--content);
  margin: 0 auto;
  padding: 0 var(--gutter) 100px;
  text-align: center;
}
.bottom-cta__head {
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(52px, 8vw, 128px);
  line-height: 1.02;
  letter-spacing: -0.005em;
  margin: 0 0 18px;
  text-transform: uppercase;
}
.bottom-cta__sub {
  font-size: 16px;
  color: var(--text-2);
  margin: 0 0 32px;
}
/* ─────────────────────────── footer ─────────────────────────── */
.foot {
  max-width: var(--content);
  margin: 0 auto;
  padding: 28px var(--gutter) 36px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: end;
  gap: 24px;
  font-size: 12.5px;
  letter-spacing: 0.02em;
}
.foot__col { display: flex; flex-direction: column; gap: 6px; }
.foot__col:last-child { align-items: flex-end; }
.foot__col a { color: var(--text-2); transition: color 200ms; }
.foot__col a:hover { color: var(--text); }
.foot__dim { color: var(--text-3); }

/* ─────────────────────────── motion ─────────────────────────── */
@keyframes drift-in {
  from { opacity: 0; transform: translateY(12px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero__title .line { animation: drift-in 900ms cubic-bezier(.2,.7,.3,1) backwards; }
.hero__title .line:nth-child(1) { animation-delay: 0.08s; }
.hero__title .line:nth-child(2) { animation-delay: 0.18s; }
.hero__title .line:nth-child(3) { animation-delay: 0.28s; }
.hero__lede   { animation: drift-in 900ms cubic-bezier(.2,.7,.3,1) 0.42s backwards; }
.hero__ctas   { animation: drift-in 900ms cubic-bezier(.2,.7,.3,1) 0.52s backwards; }

/* reveal-on-scroll */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 800ms ease, transform 800ms cubic-bezier(.2,.7,.3,1); }
.reveal.in { opacity: 1; transform: translateY(0); }

/* ─────────────────────────── responsive ─────────────────────────── */
@media (max-width: 1100px) {
  .pillars__grid { grid-template-columns: 1fr 1fr; }
  .flow__steps { grid-template-columns: 1fr 1fr; }
  .numbers { grid-template-columns: repeat(3, 1fr); gap: 24px 0; }
  .num:nth-child(3) { border-right: none; }
}
@media (max-width: 760px) {
  /* Nav hidden — collapse topbar grid to just brand + actions so .top-actions
     sits flush against the right edge instead of getting pushed into the
     middle auto column. */
  .topbar { grid-template-columns: 1fr auto; }
  .topnav { display: none; }
  .pillars__grid, .flow__steps, .matrix, .privacy__list { grid-template-columns: 1fr; }
  .numbers { grid-template-columns: 1fr 1fr; }
  .num { border-right: none; border-bottom: 1px solid var(--line); padding: 28px 0; }
  .hero__meta { position: static; flex-direction: row; flex-wrap: wrap; gap: 14px; text-align: left; margin-bottom: 28px; }
  .foot { grid-template-columns: 1fr; }
  .foot__col:last-child { align-items: flex-start; }
}

/* ─────────────────────────── SCREENSHOT SECTION ─────────────────────────── */
.shot {
  max-width: var(--content);
  margin: 0 auto;
  padding-bottom: 16px;
}
.shot__frame {
  position: relative;
  margin: 0 var(--gutter);
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-card);
  box-shadow:
    0 80px 120px -40px rgba(0,0,0,0.55),
    0 12px 32px -8px rgba(0,0,0,0.35);
}
.shot__img { width: 100%; height: auto; display: block; }
.shot__img--light { display: none; }
[data-theme="light"] .shot__img--dark  { display: none; }
[data-theme="light"] .shot__img--light { display: block; }
[data-theme="light"] .shot__frame {
  box-shadow:
    0 80px 120px -40px rgba(10, 12, 16, 0.16),
    0 12px 32px -8px rgba(10, 12, 16, 0.09);
}

/* ─────────────────────────── LIGHT THEME TOKEN OVERRIDES ─────────────────────────── */
/* Only applies when the user explicitly clicks the toggle. Mirrors the dark
   structure 1:1 — same fonts, same sizes, same spacing, just inverted tokens. */
[data-theme="light"] {
  --bg:        #fbfbfd;
  --bg-soft:   #f3f3f6;
  --bg-card:   #ffffff;
  --line:      #e6e6ec;
  --line-2:    #d3d3da;
  --text:      #0f0f12;
  --text-2:    #45454d;
  --text-3:    #7a7a82;
  --text-4:    #b4b4ba;
}
[data-theme="light"] .grain {
  opacity: 0.025;
  mix-blend-mode: multiply;
}
[data-theme="light"] .cta--primary {
  box-shadow:
    0 1px 0 rgba(255,255,255,0.22) inset,
    0 12px 28px -8px color-mix(in oklab, var(--accent) 50%, transparent);
}