:root {
  --navy: #1b3a4b;
  --navy-deep: #102b38;
  --warm: #f5f4f0;
  --white: #ffffff;
  --text: #1a1a1a;
  --muted: #5e6468;
  --border: #e2e0dc;
  --bronze: #8b6f4e;
  --bronze-light: #b99b78;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--navy);
  color: var(--text);
}

body {
  overflow: hidden;
}

.slides-container {
  height: 100vh;
  overflow-y: auto;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
}

.slide {
  position: relative;
  height: 100vh;
  min-height: 100vh;
  max-height: 100vh;
  display: grid;
  place-items: center;
  padding: clamp(32px, 5vw, 72px);
  scroll-snap-align: start;
  overflow: hidden;
}

.slide::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.16;
  background-image: radial-gradient(circle, var(--bronze-light) 1.1px, transparent 1.1px);
  background-size: 32px 32px;
}

.bg-white::before,
.bg-warm::before {
  display: none;
}

.slide-content {
  position: relative;
  z-index: 1;
  width: min(1120px, 100%);
}

.bg-white {
  background: var(--white);
}

.bg-warm {
  background: var(--warm);
}

.bg-navy {
  background: var(--navy);
  color: var(--white);
}

.bg-navy h1 {
  color: var(--white);
}

h1,
.hero-headline,
.phone-answer,
.metric-value,
.briefing-company,
.comp-amount,
.tl-what,
.cta-line {
  font-family: "Source Serif 4", Georgia, serif;
  letter-spacing: 0;
}

h1 {
  max-width: 820px;
  margin: 0;
  color: inherit;
  font-size: clamp(30px, 3.2vw, 42px);
  font-weight: 400;
  line-height: 1.16;
}

.accent-line,
.accent-line-light {
  width: 56px;
  height: 2px;
  margin: 24px 0 34px;
  background: var(--bronze-light);
}

.accent-line-light {
  margin-right: auto;
  margin-left: auto;
}

.slide-title {
  text-align: center;
}

.slide-title .slide-content {
  width: min(920px, 100%);
}

.logo {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  margin-bottom: 42px;
}

.logo-text {
  color: var(--white);
  font-size: 28px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.03em;
}

.logo-dot {
  color: var(--bronze-light);
  font-size: 32px;
  font-weight: 700;
  line-height: 1;
}

.hero-headline {
  margin: 0 auto;
  color: var(--white);
  font-size: clamp(42px, 5.2vw, 60px);
  font-weight: 400;
  line-height: 1.12;
}

.hero-sub {
  max-width: 760px;
  margin: 0 auto 36px;
  color: rgba(255, 255, 255, 0.76);
  font-size: clamp(18px, 2vw, 22px);
  font-weight: 300;
  line-height: 1.6;
}

.hero-url,
.bottom-url {
  color: rgba(255, 255, 255, 0.45);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.body-text {
  max-width: 850px;
  margin: 0 0 42px;
  color: var(--muted);
  font-size: clamp(17px, 1.55vw, 19px);
  font-weight: 300;
  line-height: 1.6;
}

.body-text strong {
  color: var(--text);
  font-weight: 650;
}

.how-steps,
.metrics-row,
.comparison,
.timeline,
.two-col {
  display: grid;
  gap: 20px;
}

.how-steps {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metrics-row {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-bottom: 28px;
}

.comparison,
.two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  align-items: center;
}

.two-col {
  gap: clamp(36px, 6vw, 72px);
}

.timeline {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 34px 0 48px;
  text-align: left;
}

.how-step,
.metric,
.briefing-card,
.stat-card,
.comp-card,
.proposal-box,
.tl-step {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--white);
  box-shadow: 0 16px 36px rgba(27, 58, 75, 0.07);
}

.how-step {
  min-height: 100%;
  padding: clamp(22px, 2.5vw, 32px);
}

.how-step-num,
.metric-label,
.briefing-label,
.briefing-industry,
.briefing-detail-label,
.briefing-intel-label,
.stat-label,
.comp-label,
.tl-when {
  color: var(--bronze);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  line-height: 1.2;
  text-transform: uppercase;
}

.how-step-num {
  margin-bottom: 24px;
}

.how-step-title {
  margin-bottom: 8px;
  color: var(--text);
  font-size: 17px;
  font-weight: 650;
  line-height: 1.3;
}

.how-step-desc,
.stat-desc,
.tl-desc,
.comp-detail {
  color: var(--muted);
  font-size: 15px;
  font-weight: 400;
  line-height: 1.55;
}

.phone-problem {
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.76);
  font-size: clamp(16px, 1.55vw, 18px);
  font-weight: 300;
  line-height: 1.65;
}

.phone-answer {
  padding-left: 28px;
  border-left: 3px solid var(--bronze-light);
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(19px, 1.8vw, 22px);
  font-weight: 400;
  line-height: 1.48;
}

.bg-navy .stat-card,
.bg-navy .tl-step,
.proposal-box {
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.08);
  box-shadow: none;
}

.stat-card {
  padding: clamp(24px, 3vw, 36px);
}

.stat-card + .stat-card {
  margin-top: 20px;
}

.stat-card.highlight {
  border-color: rgba(185, 155, 120, 0.65);
}

.stat-label {
  margin-bottom: 12px;
  color: var(--bronze-light);
}

.stat-number {
  display: block;
  margin-bottom: 8px;
  color: var(--white);
  font-size: clamp(36px, 3.8vw, 48px);
  font-weight: 400;
  line-height: 1;
}

.stat-card.highlight .stat-number {
  color: var(--bronze-light);
}

.stat-desc {
  color: rgba(255, 255, 255, 0.68);
}

.metric {
  min-height: 102px;
  padding: 22px 24px;
}

.metric-label {
  margin-bottom: 8px;
}

.metric-value {
  color: var(--text);
  font-size: clamp(19px, 1.65vw, 22px);
  font-weight: 500;
  line-height: 1.18;
}

.briefing-label {
  margin-bottom: 14px;
}

.briefing-card {
  padding: clamp(22px, 2.6vw, 30px);
}

.briefing-header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding-bottom: 18px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
}

.briefing-company {
  color: var(--text);
  font-size: 23px;
  font-weight: 500;
  line-height: 1.2;
}

.briefing-details {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 18px;
}

.briefing-detail-label {
  margin-bottom: 6px;
  color: #8d9498;
  font-size: 10px;
}

.briefing-detail-value {
  color: var(--text);
  font-size: 14px;
  font-weight: 650;
  line-height: 1.35;
}

.briefing-intel {
  border-left: 3px solid var(--bronze);
  border-radius: 0 6px 6px 0;
  background: var(--warm);
  padding: 18px 20px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.55;
}

.briefing-intel-label {
  margin-bottom: 6px;
}

.pricing-cards {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin: 36px 0 28px;
}

.pricing-cards .stat-card + .stat-card {
  margin-top: 0;
}

.checkmarks {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 15px;
  font-weight: 600;
}

.check {
  color: var(--bronze-light);
}

.math-subtitle {
  margin: 16px auto 34px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.5;
}

.math-content {
  padding-bottom: clamp(42px, 7vh, 86px);
}

.math-note {
  max-width: 860px;
  margin: 32px auto 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
}

.comp-card {
  padding: clamp(24px, 3vw, 38px);
}

.comp-card.featured {
  border-color: var(--bronze);
  box-shadow: 0 18px 42px rgba(27, 58, 75, 0.11);
}

.comp-label {
  margin-bottom: 12px;
}

.comp-amount {
  color: var(--text);
  font-size: clamp(40px, 4.6vw, 56px);
  font-weight: 400;
  line-height: 1;
}

.comp-per {
  margin: 10px 0 20px;
  color: var(--muted);
  font-size: 16px;
}

.comp-detail {
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.getting-started {
  text-align: center;
}

.getting-started h1 {
  margin-right: auto;
  margin-left: auto;
}

.proposal-box {
  display: inline-block;
  margin: 28px 0 12px;
  padding: 18px 34px;
}

.proposal-text {
  color: rgba(255, 255, 255, 0.74);
  font-size: 16px;
  font-weight: 500;
}

.tl-step {
  padding: clamp(22px, 2.5vw, 30px);
}

.tl-when {
  margin-bottom: 18px;
  color: var(--bronze-light);
}

.tl-what {
  margin-bottom: 8px;
  color: var(--white);
  font-size: 21px;
  font-weight: 500;
  line-height: 1.25;
}

.tl-desc {
  color: rgba(255, 255, 255, 0.68);
}

.cta-line {
  margin-bottom: 24px;
  color: var(--white);
  font-size: clamp(24px, 2.8vw, 32px);
  font-weight: 400;
  line-height: 1.22;
}

.nav-arrows {
  position: fixed;
  right: 28px;
  top: 50%;
  z-index: 10;
  display: grid;
  gap: 12px;
  transform: translateY(-50%);
}

.nav-arrow {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(139, 111, 78, 0.28);
  border-radius: 50%;
  background: rgba(139, 111, 78, 0.08);
  color: var(--bronze);
  cursor: pointer;
  transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
}

.nav-arrow:hover {
  border-color: rgba(139, 111, 78, 0.5);
  background: rgba(139, 111, 78, 0.14);
}

.nav-arrow.on-dark {
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(255, 255, 255, 0.09);
  color: var(--white);
}

.nav-arrow.on-dark:hover {
  border-color: rgba(255, 255, 255, 0.55);
  background: rgba(255, 255, 255, 0.16);
}

.nav-arrow svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.nav-arrow.disabled {
  opacity: 0.25;
  pointer-events: none;
}

.slide-counter {
  position: fixed;
  right: 32px;
  bottom: 26px;
  z-index: 10;
  color: rgba(139, 111, 78, 0.55);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.slide-counter.on-dark {
  color: rgba(255, 255, 255, 0.45);
}

.slide:nth-child(3) .slide-content {
  width: min(1040px, 100%);
}

.slide:nth-child(3) h1 {
  margin-bottom: 42px;
}

.slide:nth-child(3) .two-col {
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.72fr);
  gap: clamp(42px, 6vw, 76px);
}

.slide:nth-child(3) .stat-card {
  padding: 28px 32px;
}

.slide:nth-child(4) .slide-content {
  width: min(1080px, 100%);
}

.slide:nth-child(4) h1 {
  margin-bottom: 28px;
}

.slide:nth-child(4) .metrics-row {
  margin-bottom: 26px;
}

@media (max-width: 980px) {
  body {
    overflow: auto;
  }

  .slides-container {
    height: auto;
    overflow: visible;
    scroll-snap-type: none;
  }

  .slide {
    height: auto;
    min-height: 100svh;
    max-height: none;
    overflow: visible;
    place-items: start;
  }

  .how-steps,
  .metrics-row,
  .comparison,
  .timeline,
  .two-col,
  .pricing-cards {
    grid-template-columns: 1fr;
  }

  .briefing-details {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .nav-arrows,
  .slide-counter {
    display: none;
  }
}

@media (max-width: 620px) {
  .slide {
    padding: 28px 22px;
  }

  .briefing-header {
    display: block;
  }

  .briefing-industry {
    margin-top: 10px;
  }

  .briefing-details {
    grid-template-columns: 1fr;
  }
}