/* ===========================================================
   BiRAGAS · Investor Presentation · Stylesheet
   3D slide deck. Paper-and-ink aesthetic. Per-slide accents.
   =========================================================== */

:root {
  --paper: #F4EFE7;
  --paper-deep: #EBE3D2;
  --paper-light: #FAF6EE;
  --ink: #0F0F0F;
  --ink-soft: #1F1B16;
  --ink-mute: #5A544D;
  --red: #E63946;
  --red-soft: #FBE3E5;
  --mulberry: #3D0E40;
  --mulberry-soft: #EFE6F1;
  --cobalt: #1E40AF;
  --cobalt-soft: #E8EEF8;
  --cobalt-mid: #C9D6F0;
  --teal: #0E7C7B;
  --teal-soft: #E4F0EE;
  --mustard: #D4A017;
  --mustard-soft: #F5ECDA;
  --hairline: rgba(15, 15, 15, 0.08);

  /* per-slide accents (overridden per slide via [data-accent]) */
  --bg-base: var(--paper);
  --bg-accent: var(--paper-deep);
  --fg-primary: var(--ink);
  --fg-secondary: var(--ink-soft);
  --fg-mute: var(--ink-mute);
  --accent-color: var(--red);
  --rule-color: var(--hairline);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  width: 100%;
  height: 100%;
  background: #050505;
  font-family: "Newsreader", Georgia, serif;
  font-feature-settings: "ss01", "ss02";
  color: var(--fg-primary);
  overflow: hidden;
  user-select: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── stage: holds the 3D perspective ─────────────────────── */
.stage {
  position: fixed; inset: 0;
  perspective: 2400px;
  perspective-origin: 50% 45%;
  background: radial-gradient(ellipse at 50% 40%, #1a1a1a 0%, #050505 75%);
}

.deck {
  position: absolute; inset: 0;
  transform-style: preserve-3d;
}

/* ─── slide: a single page ───────────────────────────────── */
.slide {
  position: absolute;
  /* Slide is anchored to top of viewport, leaving room at the bottom for
     the navbar (no overlap possible). */
  top: 20px; left: 50%;
  width: min(1480px, 92vw);
  /* Fill the available viewport height (minus 130px reserved for the
     bottom navbar). No max-height cap so dense slides have room to
     show their full content without forced scroll. */
  height: calc(100vh - 150px);
  /* aspect-ratio removed — height now drives the layout */
  transform: translate(-50%, 0) translateZ(-1200px) rotateY(-22deg);
  opacity: 0;
  pointer-events: none;
  transform-style: preserve-3d;
  transition: transform 0.95s cubic-bezier(0.16, 1, 0.3, 1),
              opacity 0.65s cubic-bezier(0.16, 1, 0.3, 1);
  border-radius: 18px;
  background: var(--bg-base);
  box-shadow:
    0 60px 140px rgba(0, 0, 0, 0.55),
    0 18px 60px rgba(0, 0, 0, 0.35),
    inset 0 0 0 1px rgba(255, 255, 255, 0.05);
  overflow: hidden;
  isolation: isolate;
  display: none;
}

.slide.active,
.slide.entering,
.slide.exiting {
  display: block;
}

.slide.active {
  transform: translate(-50%, 0) translateZ(0) rotateY(0deg);
  opacity: 1;
  pointer-events: auto;
  z-index: 10;
}

.slide.exiting {
  transform: translate(-50%, 0) translateZ(-900px) rotateY(28deg) translateX(-15%);
  opacity: 0;
  z-index: 5;
}

.slide.entering {
  transform: translate(-50%, 0) translateZ(-1200px) rotateY(-22deg) translateX(10%);
  opacity: 0;
  z-index: 4;
}

/* ─── slide paper / texture ─────────────────────────────── */
.slide::before {
  /* fine paper grain */
  content: "";
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 12% 18%, rgba(0,0,0,0.018) 0 1px, transparent 1.5px),
    radial-gradient(circle at 78% 64%, rgba(0,0,0,0.020) 0 1px, transparent 1.5px),
    radial-gradient(circle at 38% 82%, rgba(0,0,0,0.016) 0 1px, transparent 1.5px);
  background-size: 320px 320px, 270px 270px, 360px 360px;
  mix-blend-mode: multiply;
  pointer-events: none;
  z-index: 1;
}

.slide::after {
  /* gentle vignette */
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 50%,
              transparent 55%, rgba(0,0,0,0.08) 100%);
  pointer-events: none;
  z-index: 2;
}

/* ─── per-slide accents ─────────────────────────────────── */
.slide[data-accent="paper"] {
  --bg-base: var(--paper);
  --bg-accent: var(--paper-deep);
  --accent-color: var(--red);
}
.slide[data-accent="ink"],
.slide[data-accent="ink-finale"] {
  --bg-base: var(--ink);
  --bg-accent: #1a1a1a;
  --fg-primary: var(--paper);
  --fg-secondary: #d4cdc1;
  --fg-mute: #8a8478;
  --accent-color: var(--red);
  --rule-color: rgba(255,255,255,0.08);
}
.slide[data-accent="cobalt"] {
  --bg-base: var(--cobalt-soft);
  --bg-accent: var(--cobalt-mid);
  --accent-color: var(--cobalt);
}
.slide[data-accent="cobalt-soft"] {
  --bg-base: var(--paper);
  --bg-accent: var(--cobalt-soft);
  --accent-color: var(--cobalt);
}
.slide[data-accent="mulberry"] {
  --bg-base: var(--mulberry-soft);
  --bg-accent: var(--mulberry-soft);
  --accent-color: var(--mulberry);
}
.slide[data-accent="mulberry-soft"] {
  --bg-base: var(--paper);
  --bg-accent: var(--mulberry-soft);
  --accent-color: var(--mulberry);
}
.slide[data-accent="teal-soft"] {
  --bg-base: var(--paper);
  --bg-accent: var(--teal-soft);
  --accent-color: var(--teal);
}
.slide[data-accent="mustard-soft"] {
  --bg-base: var(--paper);
  --bg-accent: var(--mustard-soft);
  --accent-color: var(--mustard);
}

/* gradient backgrounds where the screenshot sits */
.slide[data-accent="cobalt-soft"] .stage-bg,
.slide[data-accent="mulberry-soft"] .stage-bg,
.slide[data-accent="teal-soft"] .stage-bg,
.slide[data-accent="mustard-soft"] .stage-bg {
  background: linear-gradient(180deg, var(--bg-base) 0%, var(--bg-accent) 100%);
}

.slide[data-accent="cobalt"] .stage-bg {
  background: linear-gradient(135deg, #f0f5fc 0%, var(--cobalt-soft) 60%, var(--cobalt-mid) 100%);
}

.slide[data-accent="mulberry"] .stage-bg {
  background: linear-gradient(160deg, #faf5fb 0%, var(--mulberry-soft) 100%);
}

.slide[data-accent="ink"] .stage-bg,
.slide[data-accent="ink-finale"] .stage-bg {
  background: radial-gradient(ellipse at 30% 30%, #1f1a16 0%, #0a0a0a 80%);
}

/* ─── slide content layout ──────────────────────────────── */
.stage-bg {
  position: absolute; inset: 0;
  background: var(--bg-base);
  z-index: 0;
}

.slide .frame {
  position: absolute; inset: 0;
  padding: 40px 72px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  z-index: 3;
  min-height: 0;     /* allow children to honor overflow */
}

/* folio header */
.folio {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: "DM Mono", "JetBrains Mono", monospace;
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-mute);
  border-bottom: 1px solid var(--rule-color);
  padding-bottom: 16px;
}
.folio .brand { color: var(--accent-color); font-weight: 600; }
.folio .right { color: var(--fg-mute); }

/* main content area — scrollable when content overflows */
.content {
  display: grid;
  grid-template-columns: 1fr;
  align-items: start;
  gap: 32px;
  padding: 24px 0;
  padding-right: 18px;  /* room for the scrollbar */
  min-height: 0;
  overflow-y: auto;
  overflow-x: hidden;
  scrollbar-width: auto;
  scrollbar-color: rgba(15,15,15,0.32) rgba(15,15,15,0.04);
}
.content::-webkit-scrollbar { width: 10px; }
.content::-webkit-scrollbar-track {
  background: rgba(15,15,15,0.04);
  border-radius: 999px;
}
.content::-webkit-scrollbar-thumb {
  background: rgba(15,15,15,0.32);
  border-radius: 999px;
  border: 2px solid var(--bg-base);
}
.content::-webkit-scrollbar-thumb:hover { background: var(--accent-color); }

/* Dark-accent slides get light-on-dark scrollbar */
.slide[data-accent="ink"] .content,
.slide[data-accent="ink-finale"] .content {
  scrollbar-color: rgba(244,239,231,0.20) transparent;
}
.slide[data-accent="ink"] .content::-webkit-scrollbar-thumb,
.slide[data-accent="ink-finale"] .content::-webkit-scrollbar-thumb {
  background: rgba(244,239,231,0.22);
}

/* Subtle fade hint that more content sits below the visible area */
.frame::after {
  content: "";
  position: absolute;
  left: 80px; right: 80px;
  bottom: 60px;   /* sits just above the .foot row */
  height: 24px;
  background: linear-gradient(180deg, transparent 0%, var(--bg-base) 100%);
  pointer-events: none;
  z-index: 4;
  opacity: 0.65;
}

.slide.has-screen .content {
  grid-template-columns: 0.95fr 1.05fr;
  align-items: center;
}

.copy {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 28px;
}

/* Centered slides (cover, ask, hero, mae) keep their vertical centering */
.slide[data-kind="cover"] .copy,
.slide[data-kind="ask"] .copy,
.slide[data-kind="hero"] .copy,
.slide[data-kind="mae"] .copy,
.slide[data-kind="tier-detail"] .copy {
  justify-content: center;
  min-height: 100%;
}

.slide[data-kind="cover"] .content,
.slide[data-kind="ask"] .content,
.slide[data-kind="hero"] .content,
.slide[data-kind="mae"] .content,
.slide[data-kind="tier-detail"] .content {
  align-items: stretch;
}

.kicker {
  font-family: "DM Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent-color);
  font-weight: 600;
}

.title {
  font-family: "Fraunces", "Playfair Display", serif;
  font-style: italic;
  font-weight: 380;
  font-size: clamp(36px, 3.6vw, 64px);
  line-height: 0.98;
  letter-spacing: -0.03em;
  color: var(--fg-primary);
}

.headline {
  font-family: "Fraunces", serif;
  font-style: italic;
  font-weight: 380;
  font-size: clamp(24px, 2.2vw, 38px);
  line-height: 1.12;
  letter-spacing: -0.018em;
  color: var(--fg-primary);
  max-width: 95%;
}

.headline em {
  font-style: italic;
  background: var(--accent-color);
  color: var(--paper);
  padding: 0 0.16em 0.05em 0.16em;
  display: inline-block;
  transform: rotate(-1.2deg);
  border-radius: 2px;
  margin: 0 0.02em;
}

.slide[data-accent="ink"] .headline em,
.slide[data-accent="ink-finale"] .headline em {
  color: var(--ink);
  background: var(--red);
}

.headline .hl {
  color: var(--red);
  font-style: italic;
}

.subhead {
  font-family: "Newsreader", serif;
  font-size: clamp(15px, 1.18vw, 22px);
  line-height: 1.45;
  color: var(--fg-secondary);
  max-width: 92%;
  font-weight: 380;
}

/* screenshot card (right side) — gets 3D treatment */
.screen-wrap {
  position: relative;
  perspective: 1800px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.screen-card {
  position: relative;
  width: 100%;
  max-width: 760px;
  max-height: 78%;
  border-radius: 14px;
  background: var(--paper-light);
  box-shadow:
    0 30px 60px rgba(15, 15, 15, 0.18),
    0 8px 24px rgba(15, 15, 15, 0.12),
    inset 0 0 0 1px rgba(15, 15, 15, 0.04);
  transform: rotateY(-9deg) rotateX(3deg) translateZ(0);
  transform-style: preserve-3d;
  transition: transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  overflow: hidden;
  padding: 28px 32px;
  background: linear-gradient(180deg, var(--paper-light) 0%, var(--paper) 100%);
}

.slide.active .screen-card {
  animation: cardFloat 8s ease-in-out infinite;
}

@keyframes cardFloat {
  0%, 100% { transform: rotateY(-9deg) rotateX(3deg) translateZ(0); }
  50%      { transform: rotateY(-7deg) rotateX(2deg) translateZ(20px); }
}

.screen-card img {
  width: 100%;
  height: auto;
  display: block;
  filter: drop-shadow(0 4px 12px rgba(15, 15, 15, 0.08));
}

/* tag corner on screen card */
.screen-card::before {
  content: attr(data-tag);
  position: absolute;
  top: 14px;
  left: 14px;
  font-family: "DM Mono", monospace;
  font-size: 9px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--fg-mute);
  background: rgba(255,255,255,0.55);
  padding: 4px 8px;
  border-radius: 3px;
  z-index: 5;
}

/* footer */
.foot {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: "DM Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-mute);
  border-top: 1px solid var(--rule-color);
  padding-top: 16px;
}

.foot .step-pill {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.foot .step-pill .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent-color);
}

.foot .progress {
  flex: 1;
  margin: 0 40px;
  height: 2px;
  background: var(--rule-color);
  position: relative;
  border-radius: 2px;
}

.foot .progress > .fill {
  position: absolute;
  inset-block: 0;
  left: 0;
  width: var(--p, 0%);
  background: var(--accent-color);
  border-radius: 2px;
  transition: width 0.3s ease-out;
}

/* ─── title slide special layout ─────────────────────────── */
.slide[data-accent="paper"][data-id="01"] .content,
.slide[data-accent="ink-finale"][data-id="15"] .content {
  grid-template-columns: 1fr;
  align-items: center;
}

.slide[data-accent="paper"][data-id="01"] .title {
  font-size: clamp(80px, 11vw, 200px);
  line-height: 0.92;
}
.slide[data-accent="paper"][data-id="01"] .title em {
  display: inline-block;
  background: var(--red);
  color: var(--paper);
  padding: 0 0.18em 0.08em;
  transform: rotate(-1.4deg);
  margin-left: 0.22em;
  font-style: italic;
}

.slide[data-accent="ink-finale"][data-id="15"] .title {
  font-size: clamp(70px, 9vw, 160px);
  color: var(--paper);
}
.slide[data-accent="ink-finale"][data-id="15"] .title em {
  display: inline-block;
  background: var(--red);
  color: var(--paper);
  padding: 0 0.16em 0.06em;
  transform: rotate(-1.4deg);
  margin-left: 0.18em;
  font-style: italic;
}

/* ─── overlay: start-presentation gate ─────────────────────── */
.gate {
  position: fixed; inset: 0;
  background: radial-gradient(ellipse at 50% 40%, #1c1c1c 0%, #050505 75%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 100;
  cursor: pointer;
  transition: opacity 0.6s ease-out;
}

.gate.hidden {
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  display: none;
}

.gate-title {
  font-family: "Fraunces", serif;
  font-style: italic;
  font-size: clamp(56px, 8vw, 140px);
  color: var(--paper);
  letter-spacing: -0.03em;
  line-height: 0.9;
}
.gate-title em {
  background: var(--red);
  color: var(--paper);
  font-style: italic;
  padding: 0 0.1em 0.05em;
  display: inline-block;
  transform: rotate(-1.4deg);
  margin-left: 0.05em;
}
.gate-sub {
  margin-top: 36px;
  font-family: "DM Mono", monospace;
  font-size: 14px;
  letter-spacing: 0.35em;
  color: #aaa39a;
  text-transform: uppercase;
}
.gate-cta {
  margin-top: 60px;
  padding: 18px 36px;
  font-family: "DM Mono", monospace;
  font-size: 13px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--paper);
  background: var(--red);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  transition: transform 0.2s ease;
}
.gate-cta:hover { transform: translateY(-2px); }
.gate-hint {
  margin-top: 28px;
  font-family: "DM Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.28em;
  color: #6a655d;
  text-transform: uppercase;
}

/* ─── prominent bottom nav bar ─────────────────────────── */
.navbar {
  position: fixed;
  bottom: 18px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 60;
  display: flex;
  align-items: center;
  gap: 6px;
  background: rgba(15, 15, 15, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 6px 10px;
  border-radius: 999px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.45), inset 0 0 0 1px rgba(255,255,255,0.08);
  font-family: "DM Mono", monospace;
}
.navbar.dim { opacity: 0.55; }
.navbar:hover, .navbar:focus-within { opacity: 1; }
.navbar { transition: opacity 0.4s ease-out; }

.navbtn {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  color: #f4efe7;
  padding: 6px 12px;
  font-family: "DM Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 500;
  cursor: pointer;
  border-radius: 999px;
  transition: all 0.18s ease;
  min-width: 36px;
  user-select: none;
}
.navbtn:hover {
  background: rgba(255,255,255,0.14);
  transform: translateY(-1px);
}
.navbtn:active { transform: translateY(0); }
.navbtn.pill {
  background: var(--red);
  border-color: var(--red);
  color: #fff;
}
.navbtn.pill.off {
  background: transparent;
  border-color: rgba(255,255,255,0.20);
  color: #aaa39a;
}

.nav-counter {
  font-size: 10px;
  letter-spacing: 0.24em;
  color: #aaa39a;
  padding: 0 10px;
  min-width: 72px;
  text-align: center;
}

/* invisible left/right click zones for advancing slides */
.click-zone {
  position: absolute;
  top: 0; bottom: 80px;
  width: 30%;
  z-index: 30;
  cursor: pointer;
}
.click-zone.left  { left: 0; }
.click-zone.right { right: 0; }
.click-zone::after {
  content: "";
  position: absolute;
  top: 50%; transform: translateY(-50%);
  font-family: "DM Mono", monospace;
  font-size: 32px;
  color: rgba(255,255,255,0.16);
  pointer-events: none;
  transition: color 0.18s;
  width: 60px; text-align: center;
}
.click-zone.left::after  { content: "‹"; left: 20px; }
.click-zone.right::after { content: "›"; right: 20px; }
.click-zone:hover::after { color: rgba(255,255,255,0.45); }

/* toast for hints / errors */
.toast {
  position: fixed;
  top: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  z-index: 70;
  background: rgba(15,15,15,0.92);
  color: #f4efe7;
  padding: 14px 24px;
  border-radius: 999px;
  font-family: "DM Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  pointer-events: none;
  border: 1px solid rgba(255,255,255,0.08);
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.toast.err { background: var(--red); }

.brand-mark {
  position: fixed;
  top: 28px;
  left: 32px;
  z-index: 50;
  font-family: "Fraunces", serif;
  font-style: italic;
  font-size: 20px;
  color: rgba(170, 163, 154, 0.7);
  letter-spacing: -0.02em;
  pointer-events: none;
}
.brand-mark em {
  font-style: italic;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
}
.brand-mark .accent { color: var(--red); }

/* ─── slide-15: data block / ask ─────────────────────────── */
.slide[data-id="15"] .ask-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
  margin-top: 50px;
}
.slide[data-id="15"] .ask-cell {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 18px;
}
.slide[data-id="15"] .ask-cell .k {
  font-family: "DM Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: #aaa39a;
  margin-bottom: 10px;
}
.slide[data-id="15"] .ask-cell .v {
  font-family: "Fraunces", serif;
  font-style: italic;
  font-size: 36px;
  color: var(--paper);
  line-height: 1.05;
}
.slide[data-id="15"] .ask-cell .v .red { color: var(--red); }

/* problem slide stats */
.slide[data-id="02"] .stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
  margin-top: 24px;
}
.slide[data-id="02"] .stat .n {
  font-family: "Fraunces", serif;
  font-style: italic;
  font-size: 88px;
  color: var(--red);
  line-height: 1;
  letter-spacing: -0.04em;
}
.slide[data-id="02"] .stat .l {
  font-family: "DM Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: #aaa39a;
  margin-top: 12px;
}

/* thesis slide pillars */
.slide[data-id="03"] .pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 36px;
}
.slide[data-id="03"] .pillar {
  background: rgba(30, 64, 175, 0.06);
  border-left: 4px solid var(--cobalt);
  padding: 18px 22px;
  border-radius: 4px;
}
.slide[data-id="03"] .pillar .n {
  font-family: "DM Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--cobalt);
  margin-bottom: 8px;
}
.slide[data-id="03"] .pillar .t {
  font-family: "Fraunces", serif;
  font-style: italic;
  font-size: 24px;
  color: var(--ink);
  line-height: 1.1;
}

/* ━━━━━ PROTECTED-SAFE DECK · KIND-SPECIFIC LAYOUTS ━━━━━ */

/* Cover override (slide 01) */
.slide[data-kind="cover"] .title {
  font-size: clamp(70px, 9vw, 160px);
  line-height: 0.92;
}
.slide[data-kind="cover"] .title em {
  display: inline-block;
  background: var(--red);
  color: var(--paper);
  padding: 0 0.18em 0.08em;
  transform: rotate(-1.4deg);
  margin-left: 0.22em;
  font-style: italic;
}

/* Hero slide (03) — red accent SAFE answer */
.slide[data-accent="red"] {
  --bg-base: #fdf2f3;
  --bg-accent: var(--red-soft);
  --accent-color: var(--red);
}
.slide[data-accent="red"] .stage-bg {
  background: linear-gradient(160deg, #faeef0 0%, #f4e1e4 100%);
}

/* generic 3-stat layout */
.stats-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
  margin-top: 24px;
}
.stats-3 .stat .n {
  font-family: "Fraunces", serif;
  font-style: italic;
  font-size: clamp(56px, 5.5vw, 96px);
  color: var(--accent-color);
  line-height: 1;
  letter-spacing: -0.04em;
}
.stats-3 .stat .l {
  font-family: "DM Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--fg-mute);
  margin-top: 12px;
}

/* Mechanic — horizontal step flow */
.steps {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  align-items: stretch;
  margin-top: 30px;
  gap: 4px;
}
.steps .step {
  grid-column: span 1.5;
  background: rgba(30, 64, 175, 0.05);
  border-left: 3px solid var(--cobalt);
  padding: 16px 18px;
  border-radius: 3px;
}
.steps .step:nth-child(1) { grid-column: 1 / span 2; }
.steps .step:nth-child(3) { grid-column: 3 / span 2; }
.steps .step:nth-child(5) { grid-column: 5 / span 2; }
.steps .step:nth-child(7) { grid-column: 7 / span 2; }
.steps .step-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: "DM Mono", monospace;
  font-size: 24px;
  color: var(--cobalt);
  opacity: 0.6;
}
.steps .step-n {
  font-family: "DM Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.3em;
  color: var(--cobalt);
  font-weight: 600;
  margin-bottom: 6px;
}
.steps .step-t {
  font-family: "Fraunces", serif;
  font-style: italic;
  font-size: 22px;
  color: var(--ink);
  line-height: 1.05;
  margin-bottom: 6px;
}
.steps .step-d {
  font-family: "Newsreader", serif;
  font-size: 13px;
  color: var(--ink-soft);
  line-height: 1.3;
}

/* Tier-cover pillars (3 or 4 or 6 across) */
.pillars {
  display: grid;
  gap: 22px;
  margin-top: 32px;
}
.pillars-3 { grid-template-columns: repeat(3, 1fr); }
.pillars-4 { grid-template-columns: repeat(2, 1fr); }
.pillars-6 { grid-template-columns: repeat(3, 1fr); }
.pillars .pillar {
  background: rgba(15, 15, 15, 0.04);
  border-left: 4px solid var(--accent-color);
  padding: 16px 20px;
  border-radius: 3px;
}
.pillars .pillar .n {
  font-family: "DM Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--accent-color);
  margin-bottom: 8px;
  font-weight: 600;
}
.pillars .pillar .t {
  font-family: "Fraunces", serif;
  font-style: italic;
  font-size: 18px;
  color: var(--ink);
  line-height: 1.2;
}

/* Big title variant for tier covers */
.title.big {
  font-size: clamp(60px, 7vw, 120px);
}

/* Use of Proceeds — allocation bar rows */
.alloc {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 24px;
}
.alloc-row {
  display: grid;
  grid-template-columns: 96px 220px 1fr;
  align-items: baseline;
  gap: 20px;
  padding: 6px 0;
  border-bottom: 1px solid var(--hairline);
}
.alloc-pct {
  font-family: "Fraunces", serif;
  font-style: italic;
  font-size: 26px;
  color: var(--accent-color);
  line-height: 1;
  font-weight: 380;
}
.alloc-pct small {
  font-family: "DM Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.18em;
  margin-left: 4px;
  color: var(--fg-mute);
}
.alloc-k {
  font-family: "Fraunces", serif;
  font-style: italic;
  font-size: 18px;
  color: var(--ink);
}
.alloc-d {
  font-family: "DM Mono", monospace;
  font-size: 10px;
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--fg-mute);
}

/* Key/value grid (TAM, competition, team) */
.kv-grid {
  display: grid;
  gap: 22px;
  margin-top: 28px;
}
.kv-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.kv-grid.cols-4 { grid-template-columns: repeat(2, 1fr); }
.kv-grid.cols-6 { grid-template-columns: repeat(3, 1fr); }
.kv-cell {
  background: rgba(15, 15, 15, 0.04);
  border-top: 2px solid var(--accent-color);
  padding: 18px 22px;
  border-radius: 0 0 4px 4px;
}
.kv-cell .kv-k {
  font-family: "DM Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--fg-mute);
  margin-bottom: 8px;
}
.kv-cell .kv-v {
  font-family: "Fraunces", serif;
  font-style: italic;
  font-size: 26px;
  color: var(--ink);
  line-height: 1.05;
  margin-bottom: 8px;
}
.kv-cell .kv-d {
  font-family: "Newsreader", serif;
  font-size: 14px;
  color: var(--ink-soft);
  line-height: 1.4;
}

/* Round-mechanics table (slide 24) */
.round-table {
  display: flex;
  flex-direction: column;
  gap: 0;
  margin-top: 18px;
  border-top: 1px solid var(--rule-color);
}
.round-row {
  display: grid;
  grid-template-columns: 280px 1fr;
  padding: 8px 0;
  border-bottom: 1px solid var(--rule-color);
  align-items: baseline;
  gap: 20px;
}
.round-k {
  font-family: "DM Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-mute);
  font-weight: 500;
}
.round-v {
  font-family: "Newsreader", serif;
  font-size: 16px;
  color: var(--fg-primary);
  font-style: italic;
}

/* Ask slide overrides for finale */
.slide[data-accent="ink-finale"] .ask-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 36px;
  margin-top: 50px;
}
.slide[data-accent="ink-finale"] .ask-cell {
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 18px;
}
.slide[data-accent="ink-finale"] .ask-cell .k {
  font-family: "DM Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: #aaa39a;
  margin-bottom: 10px;
}
.slide[data-accent="ink-finale"] .ask-cell .v {
  font-family: "Fraunces", serif;
  font-style: italic;
  font-size: 30px;
  color: var(--paper);
  line-height: 1.05;
}

/* For long-form decks: keep slide height comfortable */
.slide[data-kind="milestone-detail"] .content,
.slide[data-kind="tier-detail"] .content,
.slide[data-kind="hero"] .content,
.slide[data-kind="mae"] .content {
  align-items: center;
  justify-content: center;
}

/* ━━━━━ RESPONSIVE TIERS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ */

/* TABLET / SMALL LAPTOP — collapse 3-up grids to 2-up */
@media (max-width: 1100px) {
  .slide .frame { padding: 40px 50px; }
  .slide.has-screen .content { grid-template-columns: 1fr; }
  .screen-wrap { display: none; }
  .stats-3, .pillars-3, .pillars-6, .kv-grid.cols-3, .kv-grid.cols-6 { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr; }
  .steps .step,
  .steps .step:nth-child(1),
  .steps .step:nth-child(3),
  .steps .step:nth-child(5),
  .steps .step:nth-child(7) { grid-column: 1; }
  .steps .step-arrow { display: none; }
  .alloc-row { grid-template-columns: 100px 1fr; }
  .alloc-row .alloc-d { grid-column: 1 / -1; }
  .round-row { grid-template-columns: 1fr; }
}

/* PHONE — portrait-first layout (≤ 740px) */
@media (max-width: 740px) {
  html, body {
    height: 100dvh;       /* dynamic viewport height — handles mobile browser chrome */
    overscroll-behavior: contain;
    touch-action: pan-y;
  }

  /* Slide fills almost the whole viewport, allowing inner scroll if content overflows */
  .slide {
    top: 12px;
    width: calc(100vw - 16px);
    height: calc(100dvh - 96px);  /* leave room for compact navbar */
    max-height: none;
    aspect-ratio: auto;
    border-radius: 14px;
    box-shadow: 0 12px 30px rgba(0,0,0,0.4);
  }
  .slide .frame {
    padding: 22px 22px 24px;
    grid-template-rows: auto 1fr auto;
  }
  .slide .frame::after {
    left: 22px; right: 22px;
    bottom: 50px;
    height: 18px;
  }
  .content {
    -webkit-overflow-scrolling: touch;
    padding: 18px 0;
  }

  /* Folio + foot — compact + condensed text */
  .folio {
    font-size: 9px;
    letter-spacing: 0.14em;
    padding-bottom: 10px;
  }
  .folio .right { display: none; }      /* free up space */
  .foot {
    font-size: 9px;
    letter-spacing: 0.14em;
    padding-top: 10px;
    gap: 8px;
  }
  .foot .progress { margin: 0 10px; }

  /* Typography scale for phones */
  .kicker  { font-size: 9px; letter-spacing: 0.22em; }
  .title   { font-size: clamp(28px, 7vw, 44px); line-height: 1.0; }
  .title.big { font-size: clamp(36px, 8.5vw, 52px); }
  .headline{ font-size: clamp(18px, 4.6vw, 26px); line-height: 1.15; }
  .subhead { font-size: clamp(13px, 3.6vw, 16px); line-height: 1.4; }
  .copy { gap: 14px; }

  /* Cover slide title sizing */
  .slide[data-kind="cover"] .title { font-size: clamp(44px, 12vw, 72px); }
  .slide[data-kind="cover"] .title em { padding: 0 0.16em 0.06em; }
  .slide[data-accent="ink-finale"] .title { font-size: clamp(40px, 11vw, 64px); }

  /* All grids collapse to single column on phone */
  .stats-3,
  .pillars-3,
  .pillars-4,
  .pillars-6,
  .kv-grid.cols-3,
  .kv-grid.cols-4,
  .kv-grid.cols-6,
  .steps {
    grid-template-columns: 1fr !important;
    gap: 10px;
    margin-top: 14px;
  }

  /* Tier cards — compact */
  .pillars .pillar { padding: 12px 14px; }
  .pillars .pillar .n { font-size: 10px; letter-spacing: 0.2em; margin-bottom: 4px; }
  .pillars .pillar .t { font-size: 15px; line-height: 1.2; }

  /* Stats */
  .stats-3 .stat { display: flex; align-items: baseline; gap: 14px; }
  .stats-3 .stat .n { font-size: 44px; }
  .stats-3 .stat .l { margin-top: 0; font-size: 9px; flex: 1; }

  /* Step flow — compact */
  .steps .step { padding: 10px 12px; }
  .steps .step:nth-child(1),
  .steps .step:nth-child(3),
  .steps .step:nth-child(5),
  .steps .step:nth-child(7) { grid-column: 1; }
  .steps .step-arrow { display: none; }
  .steps .step-t { font-size: 16px; }
  .steps .step-d { font-size: 12px; }

  /* Allocation rows */
  .alloc-row {
    grid-template-columns: 60px 1fr;
    gap: 12px;
    padding: 6px 0;
  }
  .alloc-pct { font-size: 22px; }
  .alloc-pct small { font-size: 10px; }
  .alloc-k { font-size: 14px; }
  .alloc-d { grid-column: 1 / -1; font-size: 9px; }

  /* Key/value cells */
  .kv-cell { padding: 12px 14px; }
  .kv-cell .kv-v { font-size: 18px; }
  .kv-cell .kv-d { font-size: 12px; }

  /* Round table */
  .round-table { margin-top: 14px; }
  .round-row { grid-template-columns: 1fr; padding: 8px 0; gap: 4px; }
  .round-k { font-size: 9px; }
  .round-v { font-size: 14px; }

  /* Ask grid */
  .slide[data-accent="ink-finale"] .ask-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 22px;
  }
  .slide[data-accent="ink-finale"] .ask-cell .v { font-size: 20px; }

  /* Compact navbar for phones — icon-driven */
  .navbar {
    bottom: 12px;
    padding: 5px 8px;
    gap: 4px;
  }
  .navbtn {
    padding: 8px 10px;
    font-size: 11px;
    letter-spacing: 0;
    min-width: 36px;
    min-height: 36px;  /* touch target */
  }
  .nav-counter {
    font-size: 9px;
    letter-spacing: 0.14em;
    padding: 0 6px;
    min-width: 56px;
  }
  /* Hide labels — keep icons only — for prev / next / restart */
  #prev-btn { font-size: 0; padding: 8px 12px; }
  #prev-btn::before { content: "‹"; font-size: 18px; letter-spacing: 0; }
  #next-btn { font-size: 0; padding: 8px 12px; }
  #next-btn::before { content: "›"; font-size: 18px; letter-spacing: 0; }
  #autoplay-btn { font-size: 10px; padding: 8px 10px; letter-spacing: 0; }
  #music-btn { display: none; }   /* music removed in this deck anyway */

  /* Hide brand-mark (already mostly off-screen) and chrome top corners */
  .brand-mark { display: none; }

  /* Click zones expanded for easier tap, narrower so they don't conflict with scroll */
  .click-zone { width: 22%; }
  .click-zone::after { display: none; }    /* hide chevron hints on touch */

  /* Toast positioning */
  .toast { top: 18px; padding: 10px 16px; font-size: 10px; letter-spacing: 0.14em; }

  /* Gate / start screen — phone-friendly */
  .gate-title { font-size: clamp(48px, 13vw, 80px); }
  .gate-sub   { font-size: 11px; letter-spacing: 0.22em; margin-top: 22px; padding: 0 20px; text-align: center; }
  .gate-cta   { margin-top: 36px; padding: 14px 28px; font-size: 11px; letter-spacing: 0.22em; }
  .gate-hint  { font-size: 9px; letter-spacing: 0.16em; padding: 0 24px; text-align: center; margin-top: 22px; }
}

/* VERY SMALL PHONE — iPhone SE / 360px-wide androids */
@media (max-width: 380px) {
  .slide { width: calc(100vw - 12px); top: 8px; }
  .slide .frame { padding: 18px 16px 20px; }
  .title { font-size: clamp(24px, 6.5vw, 36px); }
  .slide[data-kind="cover"] .title { font-size: clamp(38px, 12vw, 56px); }
  .navbar { padding: 4px 6px; gap: 3px; }
  .navbtn { padding: 7px 9px; min-width: 32px; min-height: 32px; }
}