:root {
  --bg: #f7fbf9;
  --ink: #122129;
  --muted: #5e6c77;
  --line: rgba(18, 33, 41, 0.1);
  --brand: #128c7e;
  --brand-deep: #075e54;
  --accent: #25d366;
  --surface: #ffffff;
  --surface-soft: #f3fbf8;
  --surface-dark: #0d2a22;
  --shadow: 0 24px 60px rgba(9, 25, 21, 0.12);
  --shadow-strong: 0 36px 90px rgba(9, 25, 21, 0.16);
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Avenir Next", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(18, 140, 126, 0.12), transparent 22%),
    radial-gradient(circle at top right, rgba(37, 211, 102, 0.09), transparent 22%),
    linear-gradient(180deg, #ffffff 0%, #f1f7f4 100%);
}

.presentation-shell {
  display: grid;
  grid-template-columns: 280px 1fr;
  min-height: 100vh;
}

.deck-rail {
  position: sticky;
  top: 0;
  align-self: start;
  height: 100vh;
  padding: 28px 22px;
  border-right: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(16px);
}

.deck-brand img {
  width: 100%;
  max-width: 180px;
}

.deck-brand p,
.deck-help p,
.small-copy,
.chat-topbar p {
  color: var(--muted);
}

.deck-nav {
  display: grid;
  gap: 10px;
  margin: 28px 0;
}

.deck-link {
  text-align: left;
  border: 1px solid transparent;
  background: linear-gradient(135deg, #ffffff, #f1faf7);
  border-radius: 16px;
  padding: 14px 16px;
  cursor: pointer;
  color: var(--ink);
  box-shadow: var(--shadow);
}

.deck-link.active {
  border-color: rgba(18, 140, 126, 0.28);
  color: var(--brand-deep);
}

.deck-main {
  padding: 28px;
}

.slide {
  min-height: calc(100vh - 56px);
  padding: 34px;
  border-radius: 36px;
  background:
    radial-gradient(circle at top right, rgba(37, 211, 102, 0.08), transparent 20%),
    radial-gradient(circle at bottom left, rgba(18, 140, 126, 0.1), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(244, 250, 247, 0.98));
  border: 1px solid var(--line);
  box-shadow: var(--shadow-strong);
  margin-bottom: 24px;
}

.slide:last-child {
  margin-bottom: 0;
}

.cover-slide {
  display: grid;
  place-items: center;
}

.cover-grid {
  width: 100%;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: center;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.74rem;
  color: var(--brand-deep);
}

.cover-copy h1,
.slide-header h2,
.hero-card h2,
.closing-card h2 {
  margin: 10px 0 0;
  font-family: "Gill Sans", "Avenir Next Condensed", sans-serif;
  line-height: 1.02;
}

.cover-copy h1 {
  font-size: clamp(2.7rem, 5vw, 4.8rem);
  max-width: 760px;
}

.lead {
  margin-top: 16px;
  max-width: 620px;
  font-size: 1.08rem;
  color: var(--muted);
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.chip-row span,
.slide-pill {
  display: inline-flex;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(18, 140, 126, 0.1);
  color: var(--brand-deep);
  font-size: 0.9rem;
}

.hero-card,
.panel-card,
.dashboard-card,
.closing-card {
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #ffffff, #f3fbf8);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 28px;
}

.metric-grid,
.stat-pairs,
.closing-points {
  display: grid;
  gap: 14px;
}

.metric-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 22px;
}

.metric-grid div,
.stat-pairs div,
.closing-points div {
  padding: 16px 18px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid var(--line);
}

.metric-grid span,
.stat-pairs span,
.closing-points span {
  display: block;
  color: var(--muted);
  font-size: 0.84rem;
}

.metric-grid strong,
.stat-pairs strong,
.closing-points strong {
  display: block;
  margin-top: 8px;
  font-size: 1.32rem;
  color: var(--brand-deep);
}

.slide-header {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: start;
  margin-bottom: 24px;
}

.slide-header h2 {
  max-width: 880px;
  font-size: clamp(2rem, 3.5vw, 3rem);
}

.buyer-slide-grid {
  display: grid;
  grid-template-columns: 0.9fr 0.8fr 0.9fr;
  gap: 22px;
  align-items: start;
}

.buyer-context,
.buyer-insights {
  display: grid;
  gap: 18px;
}

.context-card,
.panel-card {
  padding: 22px;
}

.context-card {
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, #ffffff, #f2fbf8);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.context-card.highlight,
.dashboard-card.highlight {
  background:
    radial-gradient(circle at top right, rgba(37, 211, 102, 0.12), transparent 26%),
    linear-gradient(135deg, rgba(18, 140, 126, 0.1), rgba(255, 255, 255, 0.96));
}

.context-card h3,
.panel-card h3,
.dashboard-card h3 {
  margin: 10px 0 10px;
  font-size: 1.45rem;
  font-family: "Gill Sans", "Avenir Next Condensed", sans-serif;
}

.context-card ul,
.panel-card ul,
.dashboard-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--ink);
  line-height: 1.6;
}

.phone-stage {
  display: grid;
  place-items: center;
}

.phone-frame {
  width: min(100%, 420px);
  padding: 18px 16px 20px;
  border-radius: 42px;
  background:
    radial-gradient(circle at top left, rgba(37, 211, 102, 0.18), transparent 24%),
    linear-gradient(180deg, #183a35 0%, #081210 100%);
  box-shadow: 0 36px 94px rgba(11, 21, 20, 0.34);
}

.phone-notch {
  width: 138px;
  height: 24px;
  margin: 0 auto 10px;
  border-radius: 0 0 18px 18px;
  background: #0d1614;
}

.chat-shell {
  border-radius: 24px;
  overflow: hidden;
  background: #f8f5ef;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.chat-topbar {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 18px 22px;
  background: linear-gradient(90deg, rgba(18, 140, 126, 0.28), rgba(255, 255, 255, 0.5));
}

.chat-avatar {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 16px;
  background: linear-gradient(135deg, #128c7e, #075e54);
  color: white;
  font-weight: 700;
}

.chat-thread {
  min-height: 660px;
  padding: 20px;
  background:
    linear-gradient(rgba(7, 24, 34, 0.16), rgba(255, 255, 255, 0.18)),
    url("assets/chat-background.jpeg");
  background-size: cover;
  background-position: center;
}

.bubble {
  width: fit-content;
  max-width: 88%;
  margin-bottom: 14px;
  padding: 14px 16px;
  border-radius: 18px;
  line-height: 1.5;
  white-space: pre-line;
  box-shadow: 0 10px 24px rgba(13, 25, 22, 0.08);
}

.bubble.incoming {
  background: white;
  border-top-left-radius: 6px;
}

.bubble.outgoing {
  margin-left: auto;
  background: linear-gradient(135deg, #dcf8c6, #c9f1af);
  border-top-right-radius: 6px;
}

.bubble.system {
  background: linear-gradient(135deg, rgba(238, 252, 244, 0.98), rgba(221, 247, 232, 0.96));
  border: 1px dashed rgba(18, 140, 126, 0.26);
}

.confirm-row {
  display: flex;
  justify-content: flex-end;
  margin-top: 8px;
}

.confirm-row button,
.primary-action,
.secondary-action,
.return-link {
  border: none;
  border-radius: 999px;
  padding: 12px 18px;
  font: inherit;
}

.confirm-row button,
.primary-action {
  background: linear-gradient(135deg, #128c7e, #25d366);
  color: white;
  box-shadow: 0 14px 30px rgba(18, 140, 126, 0.24);
}

.secondary-action {
  background: linear-gradient(135deg, rgba(18, 140, 126, 0.14), rgba(220, 248, 198, 0.96));
  color: var(--brand-deep);
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.dashboard-card {
  padding: 24px;
  min-height: 100%;
}

.dashboard-card.wide {
  grid-column: span 2;
}

.dashboard-card.dark {
  background:
    radial-gradient(circle at top right, rgba(37, 211, 102, 0.16), transparent 28%),
    linear-gradient(180deg, #0d2a22 0%, #06100f 100%);
  color: #f4f7f6;
}

.dashboard-card.dark span,
.dashboard-card.dark p,
.dashboard-card.dark li {
  color: rgba(244, 247, 246, 0.82);
}

.dashboard-card.dark strong,
.dashboard-card.dark h3 {
  color: #ffffff;
}

.button-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 18px;
}

.closing-slide {
  display: grid;
  place-items: center;
}

.closing-card {
  width: min(100%, 920px);
  padding: 34px;
}

.closing-points {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 22px;
}

.return-link {
  display: inline-flex;
  margin-top: 28px;
  text-decoration: none;
  background: linear-gradient(135deg, rgba(18, 140, 126, 0.14), rgba(220, 248, 198, 0.96));
  color: var(--brand-deep);
}

@media (max-width: 1180px) {
  .presentation-shell {
    grid-template-columns: 1fr;
  }

  .deck-rail {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--line);
  }

  .cover-grid,
  .buyer-slide-grid,
  .dashboard-grid,
  .closing-points {
    grid-template-columns: 1fr;
  }

  .dashboard-card.wide {
    grid-column: span 1;
  }
}

@media (max-width: 680px) {
  .deck-main,
  .deck-rail {
    padding: 18px;
  }

  .slide {
    padding: 20px;
    border-radius: 24px;
  }

  .slide-header {
    flex-direction: column;
  }

  .metric-grid,
  .stat-pairs,
  .closing-points {
    grid-template-columns: 1fr;
  }

  .phone-frame {
    width: 100%;
  }
}