/* x500 pitch deck — dashboard-aligned dark purple */

:root {
  --bg: oklch(0.06 0.02 292);
  --bg-elev: oklch(0.11 0.035 292 / 0.72);
  --fg: oklch(0.96 0.01 292);
  --muted: oklch(0.62 0.04 292);
  --primary: oklch(0.68 0.2 292);
  --primary-soft: oklch(0.48 0.16 292);
  --border: oklch(1 0 0 / 10%);
  --danger: oklch(0.65 0.2 25);
  --ok: oklch(0.72 0.14 155);
  --font-sans: "Instrument Sans", system-ui, sans-serif;
  --font-heading: "Space Grotesk", system-ui, sans-serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --gutter: clamp(1.75rem, 5vw, 4rem);
  --radius: 0.75rem;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  -webkit-font-smoothing: antialiased;
}

body {
  overflow: hidden;
}

.deck {
  position: relative;
  width: 100%;
  height: 100%;
}

.slide {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  padding: var(--gutter);
  padding-bottom: calc(var(--gutter) + 3.75rem);
  gap: 1rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px) scale(0.985);
  transition:
    opacity 0.45s var(--ease),
    transform 0.55s var(--ease),
    visibility 0.45s;
  pointer-events: none;
}

.slide.is-active {
  opacity: 1;
  visibility: visible;
  transform: none;
  pointer-events: auto;
  z-index: 1;
}

.slide-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 80% 55% at 15% -10%, oklch(0.35 0.18 292 / 0.45), transparent 55%),
    radial-gradient(ellipse 60% 40% at 90% 110%, oklch(0.3 0.14 292 / 0.35), transparent 50%),
    var(--bg);
}

.slide-bg.glow {
  background:
    radial-gradient(circle at 50% 40%, oklch(0.4 0.22 292 / 0.4), transparent 55%),
    radial-gradient(ellipse 80% 50% at 50% 100%, oklch(0.28 0.12 292 / 0.5), transparent 60%),
    var(--bg);
}

/* Top bar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-shrink: 0;
}

.brand-logo {
  height: 1.75rem;
  width: auto;
  object-fit: contain;
}

.hedera-mark {
  height: 1.4rem;
  width: auto;
  opacity: 0.9;
}

.slide-label {
  font-family: var(--font-heading);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.slide-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 0;
}

.slide-foot {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--muted);
  flex-shrink: 0;
}

.hint {
  opacity: 0.6;
}

.eyebrow {
  font-family: var(--font-heading);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary);
  margin: 0 0 1rem;
}

h2 {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(1.75rem, 4vw, 3rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
}

.lede {
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  color: var(--muted);
  max-width: 36rem;
  line-height: 1.5;
  margin: 0;
}

.lede.tight {
  max-width: 40rem;
  margin-bottom: 2rem;
}

.lede em {
  color: var(--fg);
  font-style: normal;
}

/* Slide 1 — Hero */
.hero {
  align-items: flex-start;
  gap: 0.5rem;
}

.hero-title {
  margin: 0 0 1.25rem;
}

.hero-wordmark {
  height: clamp(3.5rem, 10vw, 6.5rem);
  width: auto;
  display: block;
  filter: drop-shadow(0 0 40px oklch(0.55 0.22 292 / 0.45));
  animation: float-in 0.8s var(--ease) both;
}

.hero-sub {
  font-size: clamp(1.15rem, 2.4vw, 1.6rem);
  color: var(--fg);
  max-width: 28rem;
  line-height: 1.4;
  margin: 0 0 1.75rem;
  animation: float-in 0.8s 0.1s var(--ease) both;
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  animation: float-in 0.8s 0.2s var(--ease) both;
}

.hero-pills span {
  border: 1px solid var(--border);
  background: var(--bg-elev);
  backdrop-filter: blur(12px);
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--muted);
}

@keyframes float-in {
  from {
    opacity: 0;
    transform: translateY(16px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* Slide 2 — Problem */
.problem {
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: center;
}

.problem-points {
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 0;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.problem-points li {
  color: var(--muted);
  font-size: 1.05rem;
  padding-left: 1.1rem;
  position: relative;
}

.problem-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 0.4rem;
  height: 0.4rem;
  border-radius: 50%;
  background: var(--primary);
}

.problem-points strong {
  color: var(--fg);
  font-weight: 600;
}

.problem-art {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}

.flow-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.25rem;
  min-width: 7.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  backdrop-filter: blur(12px);
}

.flow-card.pay {
  border-color: oklch(0.55 0.18 292 / 0.5);
  box-shadow: 0 0 24px oklch(0.45 0.18 292 / 0.2);
}

.flow-card.fail {
  border-color: oklch(0.55 0.2 25 / 0.55);
  box-shadow: 0 0 24px oklch(0.45 0.18 25 / 0.2);
}

.flow-card.stuck {
  border-color: oklch(1 0 0 / 14%);
  opacity: 0.95;
}

.flow-tag {
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--primary);
}

.flow-amt {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.35rem;
  color: var(--primary);
}

.flow-code {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.85rem;
  color: var(--danger);
}

.flow-sub {
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.35;
}

.flow-arrow {
  color: var(--muted);
  font-size: 1.25rem;
  opacity: 0.5;
}

.agent-face {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 50%;
  border: 2px solid var(--muted);
  display: grid;
  grid-template-columns: 1fr 1fr;
  place-items: center;
  padding: 0.45rem 0.4rem 0.55rem;
  position: relative;
  margin-bottom: 0.2rem;
}

.agent-face .eye {
  width: 0.35rem;
  height: 0.35rem;
  border-radius: 50%;
  background: var(--muted);
}

.agent-face .mouth {
  position: absolute;
  bottom: 0.45rem;
  left: 50%;
  width: 0.85rem;
  height: 0.45rem;
  border: 2px solid var(--muted);
  border-top: none;
  border-radius: 0 0 1rem 1rem;
  transform: translateX(-50%) rotate(180deg);
}

/* Slide 3 / 9 — Center */
.center-stage {
  align-items: center;
  text-align: center;
}

.giant {
  font-size: clamp(2rem, 5.5vw, 3.75rem);
  text-align: center;
}

.inline-logo {
  height: clamp(2.4rem, 6vw, 4rem);
  width: auto;
  vertical-align: middle;
  margin-top: 0.35rem;
}

.center-stage .lede {
  margin-top: 1.25rem;
  text-align: center;
}

.thanks .slogan {
  font-size: clamp(1.1rem, 2.2vw, 1.45rem);
  color: var(--muted);
  margin: 0.5rem 0 2rem;
  max-width: 28rem;
}

.thanks-logo {
  height: 2.25rem;
  width: auto;
  opacity: 0.85;
}

/* Slide 4 — Loop */
.loop {
  display: flex;
  align-items: stretch;
  gap: 0;
  flex-wrap: wrap;
}

.loop-node {
  flex: 1 1 8rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  backdrop-filter: blur(10px);
  min-width: 7rem;
}

.loop-node .n {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  color: var(--primary);
  letter-spacing: 0.08em;
}

.loop-node strong {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
}

.loop-node small {
  color: var(--muted);
  font-size: 0.8rem;
}

.loop-node.accent {
  border-color: oklch(0.55 0.2 292 / 0.55);
  box-shadow: 0 0 28px oklch(0.4 0.18 292 / 0.25);
}

.loop-node.ok {
  border-color: oklch(0.55 0.12 155 / 0.4);
}

.loop-edge {
  width: 1.25rem;
  align-self: center;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--primary), transparent);
  flex-shrink: 0;
}

@media (max-width: 720px) {
  .loop-edge {
    display: none;
  }
}

/* Slide 5 — Architecture */
.arch-grid {
  display: grid;
  grid-template-columns: 1fr 1.15fr 1fr;
  gap: 1rem;
}

.arch-col {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.arch-col h3 {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.25rem;
  font-weight: 500;
}

.arch-col.mid .arch-node {
  background: oklch(0.14 0.05 292 / 0.75);
}

.arch-node {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 0.85);
  padding: 0.8rem 0.95rem;
  backdrop-filter: blur(10px);
}

.arch-node strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
}

.arch-node small {
  display: block;
  color: var(--muted);
  font-size: 0.75rem;
  margin-top: 0.15rem;
}

.arch-node.hedera {
  border-color: oklch(1 0 0 / 16%);
}

.node-logo {
  height: 1.15rem;
  width: auto;
  flex-shrink: 0;
  opacity: 0.95;
}

.node-logo.hedera {
  height: 1rem;
}

/* Slide 6 — Primitives */
.primitives h2 {
  margin-bottom: 1.5rem;
}

.prim-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.prim-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  backdrop-filter: blur(12px);
}

.prim-head {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-bottom: 1rem;
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--border);
}

.prim-head img {
  height: 1.1rem;
  width: auto;
}

.prim-head h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  margin: 0;
}

.prim-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.prim-card li {
  font-size: 0.88rem;
  color: var(--muted);
  line-height: 1.4;
}

.prim-card code {
  font-family: ui-monospace, "SF Mono", Menlo, monospace;
  font-size: 0.8rem;
  color: var(--primary);
  background: oklch(0.2 0.06 292 / 0.5);
  padding: 0.1rem 0.35rem;
  border-radius: 0.3rem;
}

/* Slide 7 — Shipped */
.shipped {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.85rem;
  align-content: center;
  max-width: 920px;
  width: 100%;
  margin-inline: auto;
}

.ship-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 1.05);
  padding: 1.15rem 1.1rem 1.2rem;
  backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.35rem;
  text-decoration: none;
  color: inherit;
  transition:
    border-color 0.25s var(--ease),
    box-shadow 0.25s var(--ease),
    transform 0.25s var(--ease);
}

a.ship-card {
  cursor: pointer;
}

a.ship-card:hover {
  border-color: oklch(0.55 0.18 292 / 0.55);
  box-shadow: 0 0 28px oklch(0.4 0.16 292 / 0.28);
  transform: translateY(-2px);
}

.ship-illus {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  height: 3.25rem;
  margin-bottom: 0.35rem;
  color: var(--primary);
}

.ship-illus svg {
  width: 4.5rem;
  height: 2.75rem;
}

.ship-illus-sdk {
  gap: 0.65rem;
}

.ship-badge {
  display: block;
  object-fit: contain;
}

.ship-badge.npm {
  height: 1.35rem;
  width: auto;
  border-radius: 0.2rem;
}

.ship-badge.x500 {
  height: 1.15rem;
  width: auto;
}

.ship-card h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0;
}

.ship-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.86rem;
  line-height: 1.4;
  max-width: 16rem;
}

.ship-link {
  margin-top: 0.35rem;
  font-size: 0.72rem;
  letter-spacing: 0.02em;
  color: var(--primary);
  opacity: 0.9;
}

.pulse-dot {
  fill: oklch(0.7 0.16 145);
}

/* Slide 8–10 — Merchant how-to */
.howto {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 1rem;
  min-height: 0;
  width: 100%;
  max-width: 1100px;
  margin-inline: auto;
}

.howto-copy {
  flex-shrink: 0;
}

.howto-copy h2 {
  font-size: clamp(1.45rem, 3.2vw, 2.15rem);
  margin-bottom: 0.45rem;
}

.howto-line {
  margin: 0;
  color: var(--muted);
  font-size: clamp(0.95rem, 1.6vw, 1.1rem);
  line-height: 1.45;
  max-width: 42rem;
}

.howto-line a {
  color: var(--primary);
  text-decoration: none;
  border-bottom: 1px solid oklch(0.68 0.2 292 / 0.45);
}

.howto-line a:hover {
  border-bottom-color: var(--primary);
}

.howto-line strong {
  color: var(--fg);
  font-weight: 600;
}

.ss-frame {
  margin: 0;
  min-height: 0;
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 1.1);
  overflow: hidden;
  background: oklch(0.08 0.025 292);
  box-shadow:
    0 0 0 1px oklch(0.4 0.12 292 / 0.12),
    0 18px 48px oklch(0 0 0 / 0.4);
  display: flex;
  align-items: stretch;
}

.ss-frame img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: top center;
  display: block;
  background: #050508;
}

/* Slide 11 — Agent builder */
.agent-howto {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 0.85rem;
  width: 100%;
  max-width: 980px;
  margin-inline: auto;
  min-height: 0;
}

.agent-intro h2 {
  font-size: clamp(1.45rem, 3.2vw, 2.15rem);
  margin-bottom: 0.4rem;
}

.install-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.9rem;
}

.install-cmd {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.92rem;
  color: var(--fg);
  background: oklch(0.14 0.05 292);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 0.55rem 0.9rem;
}

.install-note {
  font-size: 0.8rem;
  color: var(--muted);
}

.agent-code {
  min-height: 0;
  display: flex;
  flex-direction: column;
}

.agent-code pre {
  flex: 1;
  min-height: 0;
  overflow: auto;
  font-size: clamp(0.72rem, 1.15vw, 0.88rem);
  line-height: 1.5;
  padding: 1rem 1.15rem;
}

.code-block .cmt {
  color: oklch(0.55 0.03 292);
}

.integ-role {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 0.45rem;
}

.code-block {
  background: oklch(0.09 0.03 292);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 12px 40px oklch(0 0 0 / 0.35);
}

.code-chrome {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 0.9rem;
  border-bottom: 1px solid var(--border);
  background: oklch(0.12 0.035 292);
  flex-shrink: 0;
}

.code-chrome span {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: oklch(0.35 0.02 292);
}

.code-chrome span:nth-child(1) {
  background: oklch(0.65 0.18 25);
}
.code-chrome span:nth-child(2) {
  background: oklch(0.75 0.14 85);
}
.code-chrome span:nth-child(3) {
  background: oklch(0.65 0.14 145);
}

.code-chrome em {
  margin-left: auto;
  font-style: normal;
  font-size: 0.75rem;
  color: var(--muted);
}

.code-block pre {
  margin: 0;
  padding: 1.15rem 1.25rem;
  overflow: auto;
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: clamp(0.82rem, 1.35vw, 0.95rem);
  line-height: 1.55;
  color: oklch(0.92 0.01 292);
}

.code-block .kw {
  color: oklch(0.78 0.16 292);
  font-weight: 600;
}

.code-block .str {
  color: oklch(0.82 0.12 145);
}

.code-block .num {
  color: oklch(0.8 0.12 70);
}

.repo-cta {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: fit-content;
  max-width: 100%;
  padding: 0.7rem 1.1rem;
  border-radius: 999px;
  border: 1px solid oklch(0.55 0.18 292 / 0.45);
  background: oklch(0.2 0.08 292 / 0.45);
  color: var(--fg);
  text-decoration: none;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 500;
  transition:
    background 0.2s var(--ease),
    border-color 0.2s var(--ease),
    transform 0.2s var(--ease);
}

.repo-cta:hover {
  background: oklch(0.32 0.12 292 / 0.55);
  border-color: var(--primary);
  transform: translateY(-1px);
}

/* Slide 8 — Integrate (legacy unused) */
.integrate {
  display: none;
}

/* Nav */
.deck-nav {
  position: fixed;
  bottom: 1.1rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.4rem 0.55rem;
  background: oklch(0.1 0.03 292 / 0.85);
  border: 1px solid var(--border);
  border-radius: 999px;
  backdrop-filter: blur(16px);
}

.deck-nav > button {
  appearance: none;
  border: none;
  background: transparent;
  color: var(--fg);
  width: 2.1rem;
  height: 2.1rem;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.2s var(--ease);
}

.deck-nav > button:hover {
  background: oklch(0.25 0.08 292 / 0.5);
}

.dots {
  display: flex;
  gap: 0.35rem;
  align-items: center;
}

.dot {
  appearance: none;
  border: none;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: oklch(1 0 0 / 22%);
  padding: 0;
  cursor: pointer;
  transition:
    width 0.25s var(--ease),
    background 0.25s var(--ease);
}

.dot.is-active {
  width: 1.15rem;
  border-radius: 999px;
  background: var(--primary);
}

/* Responsive */
@media (max-width: 900px) {
  .problem,
  .arch-grid,
  .prim-grid {
    grid-template-columns: 1fr;
  }

  .shipped {
    grid-template-columns: 1fr;
  }

  .arch-grid {
    gap: 1.25rem;
  }

  .howto,
  .agent-howto {
    max-width: 100%;
  }

  .slide {
    overflow-y: auto;
  }

  body {
    overflow: auto;
  }
}

@media print {
  .deck-nav {
    display: none;
  }

  .slide {
    position: relative;
    opacity: 1;
    visibility: visible;
    transform: none;
    page-break-after: always;
    height: 100vh;
    pointer-events: auto;
  }
}