:root {
  --bg: #eef2f6;
  --card: #ffffff;
  --ink: #142033;
  --muted: #5e6b7c;
  --line: #d8e0ea;
  --blue: #2457d6;
  --blue-dark: #173680;
  --blue-soft: #eaf0ff;
  --green: #0d7c66;
  --green-soft: #e5f7f2;
  --orange: #b45f06;
  --orange-soft: #fff1dc;
  --shadow: 0 24px 70px rgba(20, 32, 51, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(36, 87, 214, 0.16), transparent 34rem),
    linear-gradient(180deg, #f7f9fc 0%, var(--bg) 100%);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
}

.presentation-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 56px;
}

.section-card {
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(216, 224, 234, 0.9);
  border-radius: 28px;
  box-shadow: var(--shadow);
  margin-bottom: 24px;
  padding: 34px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.6fr);
  gap: 28px;
  align-items: stretch;
  min-height: 540px;
  padding: 44px;
}

.hero__content {
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.eyebrow,
.panel-label {
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  margin: 0 0 12px;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  font-size: clamp(3rem, 7vw, 6.7rem);
  line-height: 0.94;
  letter-spacing: -0.08em;
  margin-bottom: 24px;
  max-width: 850px;
}

h2 {
  font-size: clamp(1.8rem, 3.2vw, 3.1rem);
  line-height: 1.05;
  letter-spacing: -0.045em;
  margin-bottom: 18px;
}

h3 {
  font-size: 1.08rem;
  letter-spacing: -0.015em;
  margin-bottom: 8px;
}

p,
li {
  color: var(--muted);
}

.hero__subtitle {
  color: #2d3a4f;
  font-size: clamp(1.18rem, 2vw, 1.6rem);
  max-width: 800px;
}

.confidentiality-note {
  background: #f6f8fb;
  border-left: 4px solid var(--blue);
  border-radius: 12px;
  color: #344256;
  max-width: 760px;
  padding: 14px 16px;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.tags span,
.extension-list span {
  background: var(--blue-soft);
  border: 1px solid #d4defe;
  border-radius: 999px;
  color: var(--blue-dark);
  font-size: 0.9rem;
  font-weight: 700;
  padding: 9px 13px;
}

.hero__panel,
.pilot-card {
  background: linear-gradient(145deg, var(--blue-dark), #244fb9);
  border-radius: 24px;
  color: #ffffff;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  min-height: 320px;
  padding: 26px;
}

.hero__panel p,
.pilot-card p,
.pilot-card li {
  color: rgba(255, 255, 255, 0.84);
}

.hero__panel .panel-label {
  color: rgba(255, 255, 255, 0.68);
}

.hero__panel p:not(.panel-label) {
  font-size: 1.35rem;
  line-height: 1.35;
}

.button {
  align-self: flex-start;
  background: #ffffff;
  border-radius: 999px;
  color: var(--blue-dark);
  display: inline-flex;
  font-weight: 800;
  margin-top: 18px;
  padding: 12px 18px;
  text-decoration: none;
}

.button--dark {
  background: var(--ink);
  color: #ffffff;
}

.section-heading {
  max-width: 760px;
  margin-bottom: 24px;
}

.problem-grid,
.feature-grid,
.user-view,
.metrics-grid {
  display: grid;
  gap: 16px;
}

.problem-grid,
.feature-grid,
.user-view,
.metrics-grid,
.process-flow {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.problem-grid article,
.feature-grid article,
.user-view article,
.metrics-grid article {
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 20px;
  min-height: 190px;
  padding: 22px;
}

.feature-grid article:nth-child(2n),
.user-view article:nth-child(2n) {
  background: #f4f7ff;
}

.split,
.pilot {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 34px;
  align-items: center;
}

.audience-list {
  background: #f8fafc;
  border-radius: 22px;
  padding: 24px;
}

ul,
ol {
  margin-bottom: 0;
  padding-left: 20px;
}

.process-flow {
  display: grid;
  gap: 14px;
  list-style: none;
  padding: 0;
}

.process-flow li {
  background: #f8fafc;
  border: 1px solid var(--line);
  border-radius: 20px;
  min-height: 190px;
  padding: 18px;
}

.process-flow span {
  color: var(--blue);
  display: block;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  margin-bottom: 16px;
}

.process-flow strong {
  color: var(--ink);
  display: block;
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.process-flow p {
  margin-bottom: 0;
}

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

.before-after__column {
  border-radius: 24px;
  padding: 26px;
}

.before {
  background: var(--orange-soft);
  border: 1px solid #f0d5ad;
}

.before h3 {
  color: var(--orange);
}

.after {
  background: var(--green-soft);
  border: 1px solid #bde5da;
}

.after h3 {
  color: var(--green);
}

.mock-icon {
  align-items: center;
  background: var(--blue);
  border-radius: 16px;
  color: #ffffff;
  display: inline-flex;
  font-weight: 800;
  height: 38px;
  justify-content: center;
  margin-bottom: 18px;
  width: 38px;
}

.optional-metrics[hidden] {
  display: none;
}

.metrics-grid article {
  min-height: 150px;
}

.metrics-grid strong {
  color: var(--blue-dark);
  display: block;
  font-size: 2.2rem;
  letter-spacing: -0.04em;
  line-height: 1;
  margin-bottom: 14px;
}

.pilot-card {
  background: linear-gradient(145deg, #173680, #0d7c66);
  min-height: auto;
}

.pilot-card h3 {
  color: #ffffff;
}

.extension-list {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.final-cta {
  background: linear-gradient(145deg, #ffffff, #eaf0ff);
  padding: 44px;
}

.final-cta p {
  max-width: 820px;
}

@media (max-width: 980px) {
  .hero,
  .split,
  .pilot,
  .before-after {
    grid-template-columns: 1fr;
  }

  .problem-grid,
  .feature-grid,
  .user-view,
  .metrics-grid,
  .process-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .presentation-shell {
    width: min(100% - 20px, 1180px);
    padding: 10px 0 28px;
  }

  .section-card,
  .hero,
  .final-cta {
    border-radius: 20px;
    padding: 22px;
  }

  .problem-grid,
  .feature-grid,
  .user-view,
  .metrics-grid,
  .process-flow {
    grid-template-columns: 1fr;
  }

  h1 {
    letter-spacing: -0.055em;
  }
}