:root {
  color-scheme: light dark;
  --hj-bg: #f5f7f6;
  --hj-surface: #eef3f1;
  --hj-surface-strong: #f5f7f6;
  --hj-surface-dark: #263331;
  --hj-ink: #252b29;
  --hj-muted: #697371;
  --hj-accent: #0f766e;
  --hj-accent-ink: #fff;
  --hj-accent-soft: rgba(15, 118, 110, 0.1);
  --hj-accent-strong: #0b5f59;
  --hj-border: #dce3e0;
  --hj-shadow: 0 24px 60px rgba(15, 118, 110, 0.08);
  --hj-present-ink: #e8eeee;
  --hj-present-muted: #9fb0ad;
  --hj-present-border: #34413f;
  --hj-page-width: min(1120px, calc(100vw - 2.5rem));
  --hj-radius: 28px;
  --hj-radius-sm: 18px;
  --hj-ring: 0 0 0 3px rgba(15, 118, 110, 0.18);
}

@media (prefers-color-scheme: dark) {
  :root {
    --hj-bg: #202827;
    --hj-surface: #263331;
    --hj-surface-strong: #2b3836;
    --hj-surface-dark: #263331;
    --hj-ink: #e8eeee;
    --hj-muted: #9fb0ad;
    --hj-accent: #5eead4;
    --hj-accent-ink: #202827;
    --hj-accent-soft: rgba(94, 234, 212, 0.1);
    --hj-accent-strong: #9ff5e7;
    --hj-border: #34413f;
    --hj-shadow: 0 24px 70px rgba(0, 0, 0, 0.28);
  }
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

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

body {
  margin: 0;
  min-width: 320px;
  color: var(--hj-ink);
  background: var(--hj-bg);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  letter-spacing: 0;
}

a {
  color: inherit;
  text-decoration-color: color-mix(in srgb, var(--hj-accent) 65%, transparent);
  text-underline-offset: 0.18em;
}

a:hover {
  text-decoration-color: currentColor;
}

a:focus-visible,
button:focus-visible,
section:focus-visible {
  outline: none;
  box-shadow: var(--hj-ring);
}

.hj-talk__skip-link {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 20;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  background: var(--hj-surface-strong);
  color: var(--hj-ink);
  transform: translateY(-200%);
}

.hj-talk__skip-link:focus {
  transform: translateY(0);
}

.hj-talk {
  width: var(--hj-page-width);
  margin: 0 auto;
  padding: 2rem 0 4rem;
}

.hj-talk__masthead,
.hj-talk__scene-shell,
.hj-talk__present-shell {
  border: 1px solid var(--hj-border);
  border-radius: var(--hj-radius);
  background: var(--hj-surface);
  backdrop-filter: blur(12px);
  box-shadow: var(--hj-shadow);
}

.hj-talk__masthead {
  padding: 1.4rem;
  margin-bottom: 1.75rem;
}

.hj-talk__kicker,
.hj-talk__eyebrow,
.hj-talk__scene-index,
.hj-talk__present-label {
  margin: 0;
  font-family: "SFMono-Regular", "JetBrains Mono", "Cascadia Code", "Courier New", monospace;
  font-size: 0.84rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.hj-talk__kicker,
.hj-talk__scene-index,
.hj-talk__present-label {
  color: var(--hj-accent);
}

.hj-talk__eyebrow {
  color: var(--hj-ink);
}

.hj-talk__masthead-grid {
  display: grid;
  gap: 1.5rem;
  align-items: center;
  grid-template-columns: minmax(0, 1.1fr) minmax(280px, 0.9fr);
}

.hj-talk__masthead-copy h1,
.hj-talk__scene h2 {
  margin: 0.35rem 0 0;
  line-height: 1.08;
  text-wrap: balance;
  letter-spacing: -0.03em;
}

.hj-talk__masthead-copy h1 {
  font-size: clamp(2.2rem, 5vw, 4.8rem);
}

.hj-talk__lede {
  max-width: 38rem;
  margin: 1.25rem 0 0;
  font-size: clamp(1.08rem, 1.8vw, 1.34rem);
  color: var(--hj-muted);
}

.hj-talk__hero {
  margin: 0;
  border-radius: calc(var(--hj-radius) - 8px);
  overflow: clip;
  border: 1px solid var(--hj-border);
  background: color-mix(in srgb, var(--hj-surface-strong) 88%, var(--hj-bg));
}

.hj-talk__hero img {
  display: block;
  width: 100%;
  height: auto;
}

.hj-talk__controls {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
  justify-content: space-between;
  margin-top: 1.25rem;
  padding: 1rem 1.1rem;
  border-radius: calc(var(--hj-radius) - 10px);
  background: var(--hj-surface-strong);
}

.hj-talk__mode-title {
  margin: 0;
  font-weight: 700;
}

.hj-talk__mode-text,
.hj-talk__noscript,
.hj-talk__present-help {
  margin: 0.2rem 0 0;
  color: var(--hj-muted);
}

.hj-talk__present-toggle,
.hj-talk__present-actions button {
  appearance: none;
  border: 1px solid var(--hj-accent);
  border-radius: 999px;
  background: var(--hj-accent);
  color: var(--hj-accent-ink);
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  padding: 0.8rem 1.2rem;
}

.hj-talk__present-actions button {
  padding: 0.65rem 1rem;
}

.hj-talk__present-actions button:last-child {
  background: transparent;
  color: var(--hj-ink);
  border-color: var(--hj-border);
}

.hj-talk__present-toggle:hover,
.hj-talk__present-actions button:hover {
  filter: brightness(1.03);
}

.hj-talk__content {
  position: relative;
}

.hj-talk__scene-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.5rem;
}

.hj-talk__scene-item {
  margin: 0;
}

.hj-talk__scene-shell {
  padding: clamp(1.4rem, 3vw, 2.25rem);
}

.hj-talk__scene {
  position: relative;
}

.hj-talk__scene h2 {
  font-size: clamp(1.7rem, 3vw, 3rem);
}

.hj-talk__scene p,
.hj-talk__scene li {
  font-size: clamp(1rem, 1.3vw, 1.12rem);
}

.hj-talk__scene--hero .hj-talk__scene-shell {
  background:
    linear-gradient(135deg, rgba(15, 118, 110, 0.08), rgba(15, 118, 110, 0.02)),
    var(--hj-surface);
}

.hj-talk__lead,
.hj-talk__boundary,
.hj-talk__workflow-line,
.hj-talk__key-line,
.hj-talk__closing-question,
.hj-talk__boundary-note {
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
}

.hj-talk__boundary,
.hj-talk__key-line,
.hj-talk__closing-question {
  padding-left: 1rem;
  border-left: 3px solid var(--hj-accent);
}

.hj-talk__step-list,
.hj-talk__resources ul {
  margin: 1rem 0 0;
  padding-left: 1.25rem;
}

.hj-talk__step-list li + li,
.hj-talk__resources li + li {
  margin-top: 0.75rem;
}

.hj-talk__callout-grid,
.hj-talk__failure-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1rem;
}

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

.hj-talk__callout-grid p,
.hj-talk__failure-card {
  margin: 0;
  padding: 1rem 1.1rem;
  border: 1px solid var(--hj-border);
  border-radius: var(--hj-radius-sm);
  background: var(--hj-surface-strong);
}

.hj-talk__failure-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.hj-talk__failure-card h3,
.hj-talk__resources h3 {
  margin-top: 0;
  margin-bottom: 0.55rem;
}

.hj-talk__summary-labels {
  color: var(--hj-accent);
  font-weight: 700;
}

.hj-talk__action-row {
  margin-top: 1rem;
}

.hj-talk__action-row a,
.hj-talk__resources a {
  color: var(--hj-accent);
  font-weight: 700;
}

.hj-talk__resources {
  margin-top: 1.25rem;
  padding: 1rem 1.1rem;
  border-radius: var(--hj-radius-sm);
  background: var(--hj-accent-soft);
}

.hj-talk--presenting {
  overflow: hidden;
}

.hj-talk--presenting .hj-talk {
  width: min(100vw, 100%);
  height: 100vh;
  min-height: 0;
  padding: clamp(0.75rem, 2vw, 1.5rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: minmax(0, 1fr) auto;
  gap: 1rem;
}

.hj-talk--presenting .hj-talk__masthead {
  display: none;
}

.hj-talk--presenting .hj-talk__content,
.hj-talk--presenting .hj-talk__present-shell {
  position: relative;
  z-index: 2;
}

.hj-talk--presenting .hj-talk__content {
  min-height: 0;
  overflow: hidden;
}

.hj-talk--presenting .hj-talk__present-shell {
  display: block;
  padding: 1rem 1.25rem 1.1rem;
  margin: 0;
  background: var(--hj-surface-dark);
  color: var(--hj-present-ink);
  border-color: var(--hj-present-border);
}

.hj-talk--presenting .hj-talk__present-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: center;
  justify-content: space-between;
}

.hj-talk--presenting .hj-talk__progress {
  margin: 0;
  font-weight: 700;
  color: var(--hj-present-ink);
}

.hj-talk--presenting .hj-talk__present-help {
  color: var(--hj-present-muted);
}

.hj-talk--presenting .hj-talk__present-actions button:last-child {
  color: var(--hj-present-ink);
  border-color: var(--hj-present-border);
}

.hj-talk--presenting .hj-talk__present-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hj-talk--presenting .hj-talk__scene-list {
  min-height: 0;
  height: 100%;
  overflow: hidden;
}

.hj-talk--presenting .hj-talk__scene-item {
  display: none;
  min-height: 0;
  overflow: hidden;
}

.hj-talk--presenting .hj-talk__scene-item.is-active {
  display: block;
  height: 100%;
}

.hj-talk--presenting .hj-talk__scene {
  height: 100%;
  min-height: 0;
  overflow: hidden;
}

.hj-talk--presenting .hj-talk__scene-shell {
  height: 100%;
  max-height: 100%;
  min-height: 0;
  overflow: auto;
}

.hj-talk--presenting .hj-talk__scene-shell {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100%;
  max-height: 100%;
  overflow: auto;
  padding: clamp(1.5rem, 3vw, 2.5rem);
}

@media (prefers-reduced-motion: reduce) {
  .hj-talk__present-toggle,
  .hj-talk__present-actions button,
  .hj-talk__skip-link {
    transition: none;
  }
}

@media (max-width: 900px) {
  .hj-talk {
    width: min(100vw - 1.2rem, 100%);
    padding-top: 0.6rem;
  }

  .hj-talk__masthead-grid,
  .hj-talk__callout-grid,
  .hj-talk__failure-grid {
    grid-template-columns: 1fr;
  }

  .hj-talk__controls,
  .hj-talk--presenting .hj-talk__present-bar {
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .hj-talk__masthead,
  .hj-talk__scene-shell,
  .hj-talk__present-shell {
    border-radius: 22px;
  }

  .hj-talk__scene-shell {
    padding: 1.15rem;
  }

  .hj-talk__controls {
    padding: 0.9rem;
  }

  .hj-talk--presenting .hj-talk {
    padding: 0.75rem;
  }

  .hj-talk__present-toggle {
    width: 100%;
    justify-content: center;
  }

  .hj-talk--presenting .hj-talk__present-shell {
    padding: 0.85rem 0.95rem 0.95rem;
  }

  .hj-talk--presenting .hj-talk__present-bar {
    gap: 0.6rem;
  }

  .hj-talk--presenting .hj-talk__present-actions {
    display: grid;
    width: 100%;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.5rem;
  }

  .hj-talk--presenting .hj-talk__present-actions button {
    width: auto;
    min-width: 0;
    padding: 0.6rem 0.55rem;
    font-size: 0.95rem;
  }

  .hj-talk--presenting .hj-talk__scene-shell {
    padding: 1.15rem;
  }
}