/* ----- root tokens ---------------------------------------------------- */
:root {
  --bg: #ffffff;
  --bg-canvas: #f4f3ee;
  --ink: #0a0a0a;
  --ink-soft: #4a4a4a;
  --ink-muted: #8a8a8a;
  --rule: #e5e5e5;
  --rule-strong: #1a1a1a;
  --accent: #ff5a5f;          /* the pink */
  --accent-ink: #d63a3f;
  --accent-soft: #ffe4e5;

  --slide-w: 1280px;
  --slide-h: 720px;

  --pad-x: 96px;
  --pad-y: 80px;

  --t-fast: 200ms cubic-bezier(0.32, 0.72, 0.24, 1);
  --t-med:  360ms cubic-bezier(0.32, 0.72, 0.24, 1);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body {
  margin: 0; padding: 0;
  height: 100%;
  background: var(--bg-canvas);
  color: var(--ink);
  font-family: 'Inter', system-ui, -apple-system, 'Helvetica Neue', Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ----- canvas + stage ------------------------------------------------- */
.canvas {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.stage {
  position: relative;
  width: var(--slide-w);
  height: var(--slide-h);
  transform-origin: center center;
  background: var(--bg);
  overflow: hidden;
  box-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.18);
}

/* ----- slides --------------------------------------------------------- */
.slide {
  position: absolute;
  inset: 0;
  padding: var(--pad-y) var(--pad-x);
  display: flex;
  align-items: center;
  justify-content: flex-start;
  opacity: 0;
  transform: translateX(24px);
  transition: opacity var(--t-med), transform var(--t-med);
  pointer-events: none;
}
.slide.is-active {
  opacity: 1;
  transform: translateX(0);
  pointer-events: auto;
}
.slide.is-prev {
  opacity: 0;
  transform: translateX(-24px);
}

.slide__inner {
  width: 100%;
  max-width: 1088px;
}

/* ----- slide head (top label) ---------------------------------------- */
.slide__head {
  position: absolute;
  top: 44px;
  left: var(--pad-x);
  right: var(--pad-x);
  display: flex;
  align-items: baseline;
  gap: 16px;
  border-bottom: 1px solid var(--rule);
  padding-bottom: 14px;
}
.slide__num {
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--accent);
  font-weight: 700;
}
.slide__chap {
  font-size: 12px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--ink);
  font-weight: 600;
}

/* ----- typography ----------------------------------------------------- */
.big {
  font-size: 72px;
  line-height: 1.02;
  letter-spacing: -0.025em;
  font-weight: 700;
  margin: 0 0 32px 0;
  color: var(--ink);
}

.lede {
  font-size: 24px;
  line-height: 1.4;
  color: var(--ink-soft);
  margin: 0 0 24px 0;
  max-width: 60ch;
  font-weight: 400;
}

.body {
  font-size: 18px;
  line-height: 1.55;
  color: var(--ink-soft);
  max-width: 64ch;
  margin: 0 0 16px 0;
}

.footnote {
  font-size: 13px;
  color: var(--ink-muted);
  margin: 24px 0 0 0;
  letter-spacing: 0.01em;
  max-width: 80ch;
}
.footnote strong { color: var(--ink); font-weight: 600; }

.callout {
  font-size: 28px;
  font-weight: 600;
  color: var(--ink);
  border-left: 4px solid var(--accent);
  padding-left: 20px;
  margin: 28px 0 0 0;
  max-width: 32ch;
}
.callout .strike {
  color: var(--ink-muted);
  font-weight: 500;
  text-decoration: line-through;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 3px;
  margin-right: 6px;
}
.metric__num-sub {
  font-size: 0.45em;
  font-weight: 600;
  color: var(--accent-ink);
  letter-spacing: 0;
  margin-left: 4px;
  vertical-align: 0.25em;
}

/* ----- cover slide ---------------------------------------------------- */
.slide--cover { align-items: center; }
.slide--cover .slide__inner { max-width: 1088px; }

.brand {
  font-size: 132px;
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 0.9;
  color: var(--ink);
  margin: 0 0 24px 0;
}
.brand__dot { color: var(--accent); }

.brand__heart {
  display: inline-block;
  position: relative;
  width: 110px;
  height: 100px;
  margin-left: 20px;
  vertical-align: -8px;
}
.brand__heart-svg {
  position: absolute;
  top: 0; left: 0;
  width: 100%;
  height: 100%;
}
.brand__heart-svg--orange { fill: #ff8a3d; }
.brand__heart-svg--red {
  fill: #ff5a5f;
  opacity: 0.55;
  transform: translate(10px, 8px);
}
.brand--small .brand__heart {
  width: 50px;
  height: 46px;
  margin-left: 10px;
  vertical-align: -2px;
}
.brand--small .brand__heart-svg--red {
  transform: translate(5px, 4px);
}

.brand--small {
  font-size: 56px;
  margin-bottom: 24px;
}

.cover__line {
  font-size: 32px;
  line-height: 1.2;
  font-weight: 500;
  color: var(--ink);
  margin: 0 0 12px 0;
  max-width: 24ch;
}
.cover__sub {
  font-size: 18px;
  color: var(--ink-muted);
  margin: 0;
  font-weight: 400;
}

/* ----- closing slide -------------------------------------------------- */
.slide--closing {
  align-items: center;
  justify-content: center;
}
.slide--closing .slide__inner {
  text-align: center;
  max-width: 720px;
}
.closing__line {
  font-size: 56px;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.05;
  margin: 0 0 48px 0;
  color: var(--ink);
}
.contact {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 16px;
  color: var(--ink-muted);
  letter-spacing: 0.02em;
}

/* ----- bullets -------------------------------------------------------- */
.bullets {
  list-style: none;
  padding: 0;
  margin: 12px 0 0 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 70ch;
}
.bullets li {
  position: relative;
  padding-left: 28px;
  font-size: 19px;
  line-height: 1.45;
  color: var(--ink-soft);
}
.bullets li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 12px;
  width: 14px; height: 2px;
  background: var(--accent);
}
.bullets li strong { color: var(--ink); font-weight: 600; }

.bullets--quotes li {
  font-style: italic;
  color: var(--ink);
}

/* ----- problem grid (3 boxes) ---------------------------------------- */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 16px;
}
.problem-card {
  background: #f6f5f1;
  border-radius: 18px;
  padding: 24px 26px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 168px;
}
.problem-card__head {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.problem-card__body {
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink-soft);
}
.problem-card--accent {
  background: var(--accent-soft);
}
.problem-card--accent .problem-card__head { color: var(--accent-ink); }
.problem-card--accent .problem-card__body { color: var(--accent-ink); }

/* ----- numbered list -------------------------------------------------- */
.numbered {
  list-style: none;
  padding: 0;
  margin: 24px 0 0 0;
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
}
.numbered--4 {
  grid-template-columns: 1fr 1fr;
  gap: 22px 36px;
  margin-top: 20px;
}
.numbered li {
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-top: 2px solid var(--ink);
  padding-top: 12px;
}
.numbered--4 li {
  border-top: 1px solid var(--rule);
  padding-top: 14px;
  flex-direction: row;
  gap: 18px;
  align-items: flex-start;
}
.numbered--4 .num {
  font-size: 36px;
  flex: 0 0 auto;
  line-height: 1;
}
.numbered--4 li.num__hero {
  border-top: 2px solid var(--accent);
  background: var(--accent-soft);
  padding: 14px 16px;
  margin-left: -16px;
}
.numbered--4 li.num__hero .num { color: var(--accent-ink); }
.numbered--4 li.num__hero strong { color: var(--accent-ink); }
.wip {
  display: inline-block;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  background: var(--accent);
  color: #fff;
  padding: 2px 6px;
  border-radius: 3px;
  vertical-align: 3px;
  margin-left: 6px;
}
.num {
  font-size: 44px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  letter-spacing: -0.03em;
}
.num__body {
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink-soft);
}
.num__body strong { color: var(--ink); font-weight: 600; display: block; margin-bottom: 4px; font-size: 18px; }

/* ----- stat row (validation) ----------------------------------------- */
.stat-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  margin-top: 12px;
}
.stat {
  border-top: 2px solid var(--ink);
  padding-top: 18px;
}
.stat__num {
  font-size: 72px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--accent);
  margin-bottom: 14px;
}
.stat__label {
  font-size: 16px;
  line-height: 1.4;
  color: var(--ink);
  font-weight: 500;
  margin-bottom: 10px;
}
.stat__src {
  font-size: 12px;
  color: var(--ink-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
}

/* ----- market size diagram ------------------------------------------- */
.market {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 12px 0;
}
.market__ring {
  position: relative;
  width: 420px;
  height: 360px;
  border: 2px solid var(--ink);
  border-radius: 50%;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 14px;
}
.market__ring-inner {
  position: absolute;
  border: 2px solid var(--ink);
  border-radius: 50%;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 12px;
}
.market__ring-inner--sam {
  width: 300px;
  height: 250px;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg);
}
.market__ring-inner--som {
  width: 180px;
  height: 150px;
  bottom: 24px;
  background: var(--accent-soft);
  border-color: var(--accent);
}
.market__num {
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  line-height: 1;
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
}
.market__ring > .market__num { font-size: 22px; bottom: 18px; }
.market__ring-inner--sam > .market__num { font-size: 22px; bottom: 16px; }
.market__ring-inner--som > .market__num { font-size: 28px; color: var(--accent-ink); bottom: 50px; }
.market__tag {
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 600;
  white-space: nowrap;
}
.market__ring-inner--som > .market__tag { color: var(--accent-ink); bottom: 32px; }

/* ----- product columns ----------------------------------------------- */
.product {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
  margin-top: 24px;
}
.product__col { border-top: 2px solid var(--ink); padding-top: 16px; }
.product__step {
  font-size: 36px;
  font-weight: 700;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 12px;
}
.product__t {
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 8px;
  line-height: 1.2;
}
.product__b {
  font-size: 15px;
  line-height: 1.5;
  color: var(--ink-soft);
}

/* ----- traction metrics ---------------------------------------------- */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 16px;
}
.metrics--3 { grid-template-columns: repeat(3, 1fr); }
.metrics--2x2 {
  grid-template-columns: repeat(2, 1fr);
  gap: 36px 64px;
  max-width: 880px;
  margin: 24px auto 0;
}
.metrics--2x2 .metric { min-height: 168px; }
.metric--hero {
  background: var(--accent-soft) !important;
  border: none !important;
}
.metric--hero .metric__num { color: var(--accent-ink); }
.metric--hero .metric__label { color: var(--accent-ink); }
.metric {
  background: #f6f5f1;
  border: none;
  border-radius: 18px;
  padding: 26px 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.metric__num {
  font-size: 56px;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--ink);
  margin-bottom: 10px;
}
.metric__label {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 600;
}
.quote {
  margin: 36px 0 0 0;
  font-size: 22px;
  font-style: italic;
  color: var(--ink);
  line-height: 1.4;
  max-width: 50ch;
}
.quote__by {
  display: block;
  margin-top: 8px;
  font-style: normal;
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--ink-muted);
  text-transform: uppercase;
  font-weight: 500;
}

/* ----- pricing & competition tables ---------------------------------- */
.pricing, .compare {
  width: 100%;
  border-collapse: collapse;
  margin-top: 16px;
  font-size: 16px;
}
.pricing th, .pricing td,
.compare th, .compare td {
  text-align: left;
  padding: 14px 16px;
  border-bottom: 1px solid var(--rule);
}
.pricing th, .compare th {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 700;
  border-bottom: 2px solid var(--ink);
}
.pricing thead th:first-child, .compare thead th:first-child { color: transparent; }

.pricing td:first-child, .compare td:first-child {
  font-weight: 600;
  color: var(--ink);
  width: 24%;
}
.compare td { color: var(--ink-soft); }
.compare .is-us {
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-weight: 600;
}
.pricing .is-feat {
  background: var(--accent-soft);
  color: var(--accent-ink);
  font-weight: 600;
}

/* ----- evolution ----------------------------------------------------- */
.evo {
  display: flex;
  align-items: stretch;
  gap: 16px;
  margin: 16px 0 24px;
}
.evo__step {
  flex: 1;
  border: 1px solid var(--rule);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.evo__step--final {
  background: var(--accent-soft);
  border-color: var(--accent);
}
.evo__n {
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--accent);
}
.evo__check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  height: 14px;
  vertical-align: -2px;
  margin-left: 4px;
  color: var(--accent);
}
.evo__check svg { width: 100%; height: 100%; }
.evo__t {
  font-size: 22px;
  color: var(--ink);
  font-weight: 600;
}
.evo__t em { color: var(--accent-ink); font-style: italic; }
.evo__sub {
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-soft);
  margin-top: 4px;
}
.evo__step--final .evo__sub { color: var(--ink); }
.evo__arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--ink);
  font-weight: 300;
}

/* ----- platforms (cross-platform slide) ----------------------------- */
.platforms {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin: 12px 0 24px;
}
.platform {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
}
.platform__name {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--ink-muted);
  text-transform: none;
  padding-left: 8px;
}
.platform__msg {
  background: #e9e9eb;
  color: var(--ink);
  padding: 14px 18px;
  border-radius: 22px 22px 22px 6px;
  font-size: 18px;
  font-weight: 500;
  font-style: normal;
  line-height: 1.35;
}
.platform__msg .hl {
  color: var(--accent);
  font-weight: 700;
}

/* ----- mutual (reciprocity slide) ----------------------------------- */
.mutual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 36px;
  margin: 16px 0 24px;
}
.mutual__side {
  border-top: 2px solid var(--ink);
  padding-top: 18px;
}
.mutual__side--them {
  border-top-color: var(--accent);
  background: var(--accent-soft);
  padding: 18px 20px 20px;
  margin-top: -2px;
}
.mutual__who {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.mutual__side--them .mutual__who { color: var(--accent-ink); }
.mutual__arrow {
  font-size: 20px;
  font-weight: 600;
  color: var(--accent);
}
.mutual__side ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.mutual__side li {
  font-size: 17px;
  line-height: 1.45;
  color: var(--ink);
  font-weight: 500;
}

/* ----- team & ask ---------------------------------------------------- */
.team {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin: 20px 0 28px;
}
.team--2 {
  grid-template-columns: 1fr 1fr;
  max-width: 920px;
  gap: 32px;
  margin-left: 0;
  margin-right: 0;
  text-align: left;
}
.founder {
  display: flex;
  align-items: flex-end;
  gap: 12px;
  border-top: none;
  padding: 0;
  text-align: left;
}
.founder__photo {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--rule);
  margin: 0 0 4px 0;
  border: none;
  object-fit: cover;
  flex-shrink: 0;
}
.founder__bubble {
  flex: 1;
  background: var(--bg);
  color: var(--ink);
  border: 1px solid var(--rule);
  padding: 14px 18px 16px;
  border-radius: 22px 22px 22px 6px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.team__note {
  margin: 44px 0 0;
  font-size: 14px;
  line-height: 1.5;
  color: var(--ink-muted);
  text-align: center;
  font-style: italic;
}
.team__note strong { color: var(--ink-soft); font-weight: 600; font-style: italic; }
.team__heart {
  display: inline-block;
  position: relative;
  width: 18px;
  height: 16px;
  margin-left: 8px;
  vertical-align: -3px;
}
.team__heart-svg {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
}
.team__heart-svg--orange { fill: #ff8a3d; }
.team__heart-svg--red {
  fill: var(--accent);
  opacity: 0.55;
  transform: translate(2px, 1.5px);
}
.founder__head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
}
.founder__name {
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.founder__school {
  font-size: 13px;
  color: var(--accent-ink);
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  line-height: 1;
}
.founder__school::before { content: '['; margin-right: 2px; }
.founder__school::after { content: ']'; margin-left: 2px; }
.founder__points {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.founder__points li {
  font-size: 14px;
  line-height: 1.4;
  color: var(--ink);
  font-weight: 500;
}
.founder__points li strong { color: var(--ink); font-weight: 700; }

.ask {
  display: flex;
  flex-direction: column;
  gap: 10px;
  border-top: 2px solid var(--ink);
  padding-top: 16px;
}
.ask__row {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 24px;
  align-items: baseline;
}
.ask__k {
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-muted);
  font-weight: 700;
}
.ask__v {
  font-size: 18px;
  font-weight: 600;
  color: var(--ink);
}
.ask__v--amount {
  font-size: 26px;
  font-weight: 800;
  color: var(--accent-ink);
  letter-spacing: -0.02em;
}
.ask__v-note {
  font-size: 14px;
  font-weight: 500;
  color: var(--ink-muted);
  letter-spacing: 0;
  margin-left: 8px;
}

/* ----- chrome -------------------------------------------------------- */
.chrome { position: absolute; inset: auto 0 0 0; pointer-events: none; }
.counter {
  position: absolute;
  right: 28px;
  bottom: 22px;
  font-size: 11px;
  letter-spacing: 0.2em;
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

/* ----- overview ------------------------------------------------------ */
.overview {
  position: fixed;
  inset: 0;
  background: rgba(244, 243, 238, 0.97);
  z-index: 10;
  padding: 48px;
  overflow-y: auto;
  backdrop-filter: blur(8px);
}
.overview__inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  max-width: 1400px;
  margin: 0 auto;
}
.overview-tile {
  background: var(--bg);
  border: 1px solid var(--rule);
  padding: 20px;
  cursor: pointer;
  transition: border-color var(--t-fast), transform var(--t-fast);
  aspect-ratio: 16 / 9;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  text-align: left;
  color: inherit;
  font: inherit;
}
.overview-tile:hover, .overview-tile:focus-visible {
  border-color: var(--accent);
  transform: translateY(-2px);
  outline: none;
}
.overview-tile__num {
  font-size: 24px;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.overview-tile__title {
  font-size: 13px;
  color: var(--ink);
  font-weight: 600;
  line-height: 1.3;
}

/* ----- shortcuts overlay --------------------------------------------- */
.shortcuts {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 20;
  backdrop-filter: blur(6px);
}
.shortcuts__panel {
  background: var(--bg);
  border: 1px solid var(--rule);
  padding: 32px 40px;
  min-width: 360px;
}
.shortcuts__title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 18px;
  color: var(--ink);
}
.shortcuts ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 14px;
  color: var(--ink-soft);
}
.shortcuts kbd {
  display: inline-block;
  padding: 2px 8px;
  margin-right: 6px;
  background: var(--bg-canvas);
  border: 1px solid var(--rule);
  border-radius: 3px;
  font-family: 'Inter', monospace;
  font-size: 12px;
  color: var(--ink);
  font-weight: 600;
}
.shortcuts__hint {
  margin-top: 20px;
  font-size: 11px;
  color: var(--ink-muted);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
}

/* ----- quadrant (positioning slide) --------------------------------- */
.quadrant {
  position: relative;
  width: 660px;
  height: 280px;
  margin: 16px auto 0;
  background: #f9f8f4;
  border: 1px solid var(--rule);
  border-radius: 18px;
}
.quadrant__line {
  position: absolute;
  background: var(--rule);
}
.quadrant__line--h { top: 50%; left: 0; width: 100%; height: 1px; }
.quadrant__line--v { top: 0; left: 50%; width: 1px; height: 100%; }
.quadrant__axis {
  position: absolute;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink);
  z-index: 3;
  background: #f9f8f4;
  padding: 2px 6px;
}
.quadrant__axis--top { top: 12px; left: 50%; transform: translateX(-50%); }
.quadrant__axis--bot { bottom: 12px; left: 50%; transform: translateX(-50%); }
.quadrant__axis--left { left: 16px; top: 50%; transform: translateY(-50%); }
.quadrant__axis--right { right: 16px; top: 50%; transform: translateY(-50%); }

.quadrant__dot {
  position: absolute;
  transform: translate(-50%, -50%);
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
  white-space: nowrap;
  background: var(--bg);
  padding: 7px 14px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.04);
}
.quadrant__dot--us {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-ink);
  font-weight: 800;
  font-size: 17px;
  padding: 10px 18px 10px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 2;
  box-shadow: 0 6px 18px rgba(255, 90, 95, 0.2);
}
.quadrant__heart {
  position: relative;
  width: 22px;
  height: 20px;
  display: inline-block;
  flex-shrink: 0;
}
.quadrant__heart-svg {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
}
.quadrant__heart-svg--orange { fill: #ff8a3d; }
.quadrant__heart-svg--red {
  fill: var(--accent);
  opacity: 0.55;
  transform: translate(2px, 1.5px);
}

/* ----- mobile fallback ----------------------------------------------- */
@media (max-width: 900px) {
  body { background: var(--bg); }
  .canvas { position: static; display: block; padding: 0; }
  .stage {
    width: 100% !important;
    height: auto !important;
    transform: none !important;
    box-shadow: none;
  }
  .slide {
    position: relative;
    inset: auto;
    opacity: 1 !important;
    transform: none !important;
    pointer-events: auto;
    padding: 96px 24px 48px;
    border-bottom: 1px solid var(--rule);
    min-height: auto;
  }
  .slide__head { top: 24px; left: 24px; right: 24px; gap: 12px; }
  .slide__chap { font-size: 11px; letter-spacing: 0.16em; }
  .slide__inner { max-width: 100%; }
  .big { font-size: 40px; }
  .brand { font-size: 64px; }
  .brand__heart { width: 54px; height: 50px; margin-left: 10px; vertical-align: -4px; }
  .brand__heart-svg--red { transform: translate(6px, 5px); }
  .cover__line { font-size: 22px; }
  .lede { font-size: 18px; }
  .closing__line { font-size: 36px; }
  .stat-row, .product, .metrics, .numbered, .team,
  .problem-grid, .platforms, .mutual {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .numbered--4 { gap: 16px; margin-top: 16px; }
  .numbered--4 li.num__hero { margin-left: 0; }
  .metrics--2x2 { gap: 16px; max-width: none; margin: 16px 0 0; }
  .metrics--2x2 .metric { min-height: auto; }
  .problem-card { min-height: auto; padding: 20px 22px; }
  .platform__msg { font-size: 16px; }
  .stat__num, .metric__num { font-size: 48px; }
  .market__ring { width: 280px; height: 240px; }
  .market__ring-inner--sam { width: 200px; height: 170px; bottom: 24px; }
  .market__ring-inner--som { width: 120px; height: 100px; bottom: 18px; }
  .evo { flex-direction: column; }
  .evo__arrow { transform: rotate(90deg); }
  .pricing, .compare { font-size: 13px; }
  .pricing th, .pricing td, .compare th, .compare td { padding: 8px 6px; }

  /* quadrant: shrink to fit phone width, keep proportions readable */
  .quadrant {
    width: 100%;
    max-width: 480px;
    height: 260px;
    margin: 16px auto 0;
  }
  .quadrant__axis { font-size: 9px; letter-spacing: 0.14em; padding: 2px 5px; }
  .quadrant__dot {
    font-size: 11px;
    padding: 5px 10px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  }
  .quadrant__dot--us {
    font-size: 14px;
    padding: 7px 12px 7px 10px;
    gap: 6px;
  }
  .quadrant__heart { width: 18px; height: 16px; }

  .chrome, .overview, .shortcuts { display: none !important; }
}

/* ----- narrow phones (320–480) --------------------------------------- */
@media (max-width: 480px) {
  .slide { padding: 84px 18px 40px; }
  .slide__head { top: 22px; left: 18px; right: 18px; }
  .big { font-size: 32px; }
  .brand { font-size: 42px; }
  .brand__heart { width: 34px; height: 32px; margin-left: 6px; vertical-align: -2px; }
  .brand__heart-svg--red { transform: translate(4px, 3px); }
  .brand--small { font-size: 44px; }
  .brand--small .brand__heart { width: 38px; height: 34px; margin-left: 8px; }
  .cover__line { font-size: 20px; }
  .closing__line { font-size: 28px; }
  .metric__num, .stat__num { font-size: 40px; }
  .metric__num-sub { font-size: 0.4em; }
  .num { font-size: 36px; }
  .numbered--4 .num { font-size: 30px; }
  .num__body { font-size: 15px; }
  .num__body strong { font-size: 16px; }
  .callout { font-size: 22px; padding-left: 16px; }
  .evo__t { font-size: 18px; }
  .evo__step { padding: 18px; }

  .quadrant { height: 230px; }
  .quadrant__axis { font-size: 8px; }
  .quadrant__dot { font-size: 10px; padding: 4px 8px; }
  .quadrant__dot--us { font-size: 12px; padding: 6px 10px 6px 8px; }
  .quadrant__heart { width: 14px; height: 13px; }
}