@font-face {
  font-family: "Manrope";
  src: url("./assets/manrope.woff2") format("woff2");
  font-display: swap;
  font-style: normal;
  font-weight: 200 800;
}

:root {
  --ink: #343c3e;
  --muted: #697476;
  --slate: #7e9296;
  --coral: #f52d68;
  --coral-dark: #d91f57;
  --mist: #f4f6f6;
  --sand: #eee8df;
  --line: #dce2e3;
  --white: #ffffff;
  --focus: #147d8a;
  --shadow: 0 24px 70px rgba(37, 48, 51, .12);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  height: 100%;
  overflow: hidden;
  color: var(--ink);
  background: #242a2b;
  font-family: "Manrope", Arial, sans-serif;
}

.presentation-shell {
  position: relative;
  height: 100dvh;
  overflow: hidden;
}

.deck {
  width: 100%;
  height: 100dvh;
  overflow-y: auto;
  overflow-x: hidden;
  scroll-snap-type: y mandatory;
  overscroll-behavior: contain;
  scrollbar-width: none;
}

.deck::-webkit-scrollbar { display: none; }

.slide {
  width: min(100%, 1600px);
  min-height: 100vh;
  aspect-ratio: 16 / 9;
  margin: 0 auto;
  padding: clamp(56px, 6vw, 108px);
  position: relative;
  overflow: hidden;
  background: var(--white);
  scroll-snap-align: start;
  scroll-snap-stop: always;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.slide::before {
  content: "";
  width: 180px;
  height: 6px;
  position: absolute;
  top: 0;
  left: clamp(56px, 6vw, 108px);
  background: var(--coral);
}

.slide-number {
  position: absolute;
  right: clamp(30px, 4vw, 64px);
  bottom: clamp(24px, 3vw, 46px);
  margin: 0;
  color: var(--slate);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .12em;
}

.eyebrow,
.section-label {
  margin: 0 0 24px;
  color: var(--coral);
  font-size: clamp(13px, 1.1vw, 18px);
  font-weight: 800;
  letter-spacing: .18em;
  text-transform: uppercase;
}

h1, h2, p { margin-top: 0; }

h1 {
  max-width: 960px;
  margin-bottom: 34px;
  font-size: clamp(46px, 5vw, 64px);
  line-height: .96;
  letter-spacing: -.06em;
  font-weight: 500;
}

h1 em {
  color: var(--coral);
  font-style: normal;
}

h2 {
  max-width: 1150px;
  margin-bottom: 34px;
  font-size: clamp(38px, 4.5vw, 64px);
  line-height: 1.03;
  letter-spacing: -.05em;
  font-weight: 500;
}

p, li {
  font-size: clamp(19px, 1.55vw, 28px);
  line-height: 1.55;
}

.lead {
  max-width: 850px;
  color: var(--muted);
  font-size: clamp(22px, 2vw, 34px);
}

.deck-header {
  position: fixed;
  z-index: 30;
  top: 24px;
  left: 28px;
  display: flex;
  align-items: center;
  gap: 18px;
}

.home-control,
.arrow-controls button {
  border: 1px solid rgba(255,255,255,.22);
  color: var(--white);
  background: rgba(36,42,43,.82);
  backdrop-filter: blur(12px);
  cursor: pointer;
}

.home-control {
  width: 42px;
  height: 42px;
  border-radius: 13px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
}

.progress-copy {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 8px 12px;
  border: 1px solid rgba(52,60,62,.1);
  border-radius: 999px;
  color: var(--ink);
  background: #ffffff;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .12em;
  box-shadow: 0 8px 24px rgba(37,48,51,.08);
}

.progress-copy i {
  width: 22px;
  height: 1px;
  background: var(--line);
}

.progress-track {
  position: fixed;
  z-index: 31;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: rgba(255,255,255,.1);
}

.progress-track span {
  display: block;
  width: 100%;
  height: 100%;
  transform: scaleX(.1);
  transform-origin: left center;
  background: var(--coral);
  transition: transform .35s ease;
}

.slide-nav {
  position: fixed;
  z-index: 20;
  top: 50%;
  right: 18px;
  display: grid;
  gap: 7px;
  transform: translateY(-50%);
}

.slide-nav button {
  width: 10px;
  height: 10px;
  padding: 0;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 50%;
  background: rgba(36,42,43,.78);
  backdrop-filter: blur(12px);
  cursor: pointer;
  transition: transform .2s ease, background .2s ease;
}

.slide-nav button:hover,
.slide-nav button:focus-visible,
.slide-nav button.active {
  border-color: var(--coral);
  background: var(--coral);
  transform: scale(1.35);
  outline: none;
}

.arrow-controls {
  position: fixed;
  z-index: 30;
  right: 26px;
  bottom: 24px;
  display: flex;
  gap: 8px;
}

.arrow-controls button {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 18px;
}

.arrow-controls button:hover:not(:disabled),
.home-control:hover { background: var(--coral); border-color: var(--coral); }
.arrow-controls button:disabled { opacity: .35; cursor: default; }

.slide-cover {
  background:
    radial-gradient(circle at 80% 18%, rgba(245,45,104,.13), transparent 26%),
    var(--white);
}

.cover-copy { max-width: 1050px; }

.cover-mark {
  width: 240px;
  height: 240px;
  position: absolute;
  right: 8%;
  bottom: 10%;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--mist);
  display: grid;
  align-content: center;
  justify-items: center;
  box-shadow: var(--shadow);
}

.cover-mark span { color: var(--coral); font-size: 82px; line-height: .9; font-weight: 300; }
.cover-mark small { margin-top: 15px; color: var(--muted); font-weight: 700; }

.statement { max-width: 1180px; }
.statement p { max-width: 980px; color: var(--muted); }

.side-note {
  max-width: 720px;
  margin-top: 26px;
  padding: 24px 28px;
  border-left: 4px solid var(--coral);
  color: var(--muted);
  background: var(--mist);
  font-size: clamp(17px, 1.3vw, 23px);
  line-height: 1.5;
}

.slide-split {
  flex-direction: row;
  align-items: center;
  gap: clamp(60px, 8vw, 150px);
}

.split-title { width: 43%; }
.split-title h2 { font-size: clamp(48px, 5.2vw, 86px); }
.question-list { width: 50%; }

.question-list article {
  padding: 25px 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 22px;
  align-items: start;
}

.question-list article:first-child { border-top: 1px solid var(--line); }
.question-list span { color: var(--coral); font-size: 13px; font-weight: 800; }
.question-list p { margin: 0; font-size: clamp(17px, 1.35vw, 23px); }

.slide-dark { color: var(--white); background: var(--ink); }
.slide-dark::before { background: var(--coral); }
.slide-dark h2 { max-width: 1050px; }
.slide-dark .slide-number { color: #cbd2d3; }

.credential-line {
  max-width: 1220px;
  padding: 28px 0;
  border-top: 1px solid rgba(255,255,255,.18);
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 40px;
}

.credential-line:last-of-type { border-bottom: 1px solid rgba(255,255,255,.18); }
.credential-line strong { color: var(--coral); font-size: clamp(23px, 2vw, 34px); }
.credential-line p { max-width: 900px; margin: 0; color: #dfe4e5; font-size: clamp(17px, 1.35vw, 23px); }

.wide-title { max-width: 1200px; }
.wide-title p { max-width: 1000px; color: var(--muted); }

blockquote {
  max-width: 1100px;
  margin: 34px 0 0;
  padding: 30px 40px;
  border-radius: 18px;
  color: var(--ink);
  background: var(--sand);
  font-size: clamp(22px, 2vw, 34px);
  line-height: 1.4;
  font-weight: 650;
}

.slide-grid {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  align-items: center;
  gap: clamp(50px, 8vw, 130px);
}

.practical-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.practical-grid article {
  min-height: 210px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--mist);
}

.practical-grid article:nth-child(2) { background: var(--ink); color: var(--white); }
.practical-grid span { color: var(--coral); font-size: 15px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.practical-grid p { margin: 18px 0 0; font-size: clamp(17px, 1.3vw, 22px); }

.compact-title { max-width: 1200px; font-size: clamp(42px, 4.4vw, 72px); }

.check-list {
  max-width: 1150px;
  margin: 15px 0 0;
  padding: 0;
  list-style: none;
  columns: 2;
  column-gap: 70px;
}

.check-list li {
  margin: 0 0 24px;
  padding-left: 34px;
  position: relative;
  break-inside: avoid;
  color: var(--muted);
  font-size: clamp(17px, 1.35vw, 23px);
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--coral);
  font-weight: 900;
}

.slide-alert {
  flex-direction: row;
  align-items: center;
  gap: clamp(60px, 9vw, 150px);
  background: var(--sand);
}

.alert-symbol {
  width: 220px;
  height: 220px;
  flex: 0 0 auto;
  border-radius: 50%;
  color: var(--white);
  background: var(--coral);
  display: grid;
  place-items: center;
  font-size: 116px;
  font-weight: 300;
  box-shadow: var(--shadow);
}

.alert-copy { max-width: 1020px; }
.alert-copy h2 { font-size: clamp(46px, 4.8vw, 78px); }
.alert-copy ul { margin: 0; padding-left: 25px; columns: 2; column-gap: 60px; }
.alert-copy li { margin: 0 0 18px; padding-left: 6px; break-inside: avoid; font-size: clamp(16px, 1.25vw, 21px); }

.slide-check { background: var(--mist); }
.slide-check h2 { max-width: 1050px; }
.decision-list { max-width: 1200px; }
.decision-list p {
  margin: 0;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 70px 1fr;
  color: var(--ink);
  font-size: clamp(18px, 1.45vw, 25px);
}
.decision-list p:last-child { border-bottom: 1px solid var(--line); }
.decision-list span { color: var(--coral); font-size: 13px; font-weight: 800; }

.slide-closing {
  flex-direction: row;
  align-items: center;
  gap: clamp(55px, 8vw, 130px);
}

.closing-copy { width: 58%; }
.closing-copy h2 { font-size: clamp(44px, 4.7vw, 78px); }
.closing-copy > p:not(.eyebrow) { max-width: 850px; color: var(--muted); }
.closing-copy a {
  margin-top: 18px;
  padding: 18px 28px;
  border-radius: 12px;
  color: var(--white);
  background: var(--coral);
  display: inline-flex;
  gap: 22px;
  text-decoration: none;
  font-size: 17px;
  font-weight: 800;
  box-shadow: 0 16px 40px rgba(245,45,104,.25);
}
.closing-copy a:hover,
.closing-copy a:focus-visible { background: var(--coral-dark); outline: 3px solid var(--focus); outline-offset: 4px; }

.slide-closing figure {
  width: 36%;
  height: 70%;
  margin: 0;
  border-radius: 26px;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.slide-closing img { width: 100%; height: 100%; object-fit: cover; object-position: center top; display: block; }

@media (max-width: 900px) {
  .slide { min-height: 100dvh; aspect-ratio: auto; padding: 78px 30px 88px; }
  .slide-nav { right: 9px; gap: 5px; }
  .slide-nav button { width: 7px; height: 7px; }
  .deck-header { top: 18px; left: 18px; }
  .progress-copy { color: var(--ink); }
  .progress-copy i { background: var(--line); }
  .arrow-controls { right: 16px; bottom: 16px; }
  .arrow-controls button { width: 40px; height: 40px; }
  .slide-split, .slide-alert, .slide-closing { flex-direction: column; align-items: flex-start; }
  .split-title, .question-list, .closing-copy, .slide-closing figure { width: 100%; }
  .slide-grid { display: flex; }
  .practical-grid { grid-template-columns: 1fr; }
  .check-list, .alert-copy ul { columns: 1; }
  .cover-mark { width: 130px; height: 130px; right: 24px; bottom: 55px; opacity: .82; }
  .cover-mark span { font-size: 48px; }
  .cover-mark small { display: none; }
  .credential-line { grid-template-columns: 1fr; gap: 10px; }
  .slide-closing figure { height: 380px; order: -1; }
}

@media print {
  @page { size: 16in 9in; margin: 0; }
  body { background: var(--white); }
  .slide-nav, .deck-header, .progress-track, .arrow-controls { display: none; }
  .slide { width: 16in; height: 9in; min-height: 0; page-break-after: always; }
}

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