/* Shared presentation and speaking shell system for keynote detail pages. */
:root {
  --bg: #0C0E1C;
  --bg-card: #131729;
  --bg-card2: #1A1F38;
  --coral: #E8614D;
  --coral2: #F47550;
  --blue: #6B7AE8;
  --green: #4ADE80;
  --text: #FFFFFF;
  --muted: #8891AA;
  --dim: #7E88A2;
  --border: rgba(255, 255, 255, .07);
  --border2: rgba(255, 255, 255, .13);
  --ff-head: "Space Grotesk", system-ui, sans-serif;
  --ff-body: "Plus Jakarta Sans", system-ui, sans-serif;
  --mw: 1200px;
  --dur: 200ms;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--ff-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3 {
  font-family: var(--ff-head);
  letter-spacing: -.02em;
  line-height: 1.15;
}

.nav {
  position: sticky;
  z-index: 100;
  top: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  border-bottom: 1px solid var(--border);
  background: rgba(12, 14, 28, .88);
  backdrop-filter: blur(12px);
}

.nav__logo {
  color: var(--coral);
  font-family: var(--ff-head);
  font-size: 1rem;
  font-weight: 700;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 24px;
  list-style: none;
}

.nav__links a {
  color: var(--muted);
  font-size: .82rem;
  font-weight: 600;
  transition: color var(--dur);
}

.nav__links a:hover,
.nav__link--active {
  color: var(--text);
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-right: 16px;
}

.lang-btn {
  padding: 4px 7px;
  border-radius: 4px;
  color: var(--muted);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
}

.lang-btn:hover {
  color: var(--text);
}

.lang-btn--active {
  color: var(--coral);
  cursor: default;
}

.lang-sep {
  color: var(--dim);
  font-size: .6rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 8px;
  cursor: pointer;
  font-size: .88rem;
  font-weight: 700;
  transition: all var(--dur);
}

.btn--primary {
  background: var(--coral);
  color: #fff;
}

.btn--primary:hover {
  background: var(--coral2);
  transform: translateY(-1px);
}

/* Speaking shell target contract. */
:where(.nav a, .lang-switch a, .footer__links a) {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
}

.breadcrumb {
  max-width: var(--mw);
  margin: 0 auto;
  padding: 16px 32px;
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
}

.breadcrumb a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
}

.breadcrumb li + li::before {
  margin-right: 8px;
  color: var(--dim);
  content: "/";
}

.keynote-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.5rem;
}

.primary-invite-cta,
.final-invite-link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 12px 22px;
  border-radius: 8px;
  background: var(--coral);
  color: #fff;
  font-weight: 700;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--keynote-muted);
}

.funded-note {
  max-width: var(--mw);
  margin: 1.5rem auto;
  padding: 1rem 1.25rem;
  border-left: 3px solid var(--keynote-teal);
  background: var(--keynote-navy-raised);
}

.section {
  padding: clamp(3.5rem, 7vw, 6.5rem) max(1.25rem, calc((100% - 1200px) / 2));
}

.section--soft {
  background: #11152A;
}

.section h2 {
  max-width: 820px;
  margin-bottom: 1.25rem;
  font: 700 clamp(2rem, 4vw, 3.5rem) / 1.08 var(--ff-head);
}

.section h3 {
  margin-bottom: .6rem;
}

.eyebrow,
.sample-label {
  display: block;
  margin-bottom: .55rem;
  color: #28D7BF;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
}

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

.outcome-grid article,
.narrative-grid li {
  padding: 1.35rem;
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 14px;
  background: #11152A;
}

.slide-art {
  display: flex !important;
  flex-direction: column;
  justify-content: center;
  gap: clamp(.35rem, 1.2vw, .75rem);
  padding: clamp(.8rem, 2vw, 1.65rem) !important;
  background: linear-gradient(145deg, #11152A, #181D36) !important;
}

.slide-art small {
  color: #28D7BF;
  letter-spacing: .12em;
}

.slide-art strong {
  font: 700 clamp(1rem, 2.5vw, 2.6rem) / 1.05 var(--ff-head);
}

.slide-art > span {
  color: #ADB5CC;
  font-size: clamp(.62rem, 1vw, .86rem);
}

.slide-source {
  padding-top: .45rem;
  border-top: 1px solid rgba(255, 255, 255, .14);
}

.sample-label {
  font-size: .72rem;
}

.speaker-strip img {
  display: none;
}

.faq details {
  max-width: 800px;
  padding: 1rem 0;
  border-top: 1px solid rgba(255, 255, 255, .14);
}

.faq summary {
  cursor: pointer;
  font-weight: 800;
}

.final-cta {
  text-align: center;
}

.custom-research-sequence .takeback-grid article {
  grid-column: span 1;
}

.footer {
  padding: 48px 32px 40px;
  border-top: 1px solid var(--border);
  color: var(--dim);
  font-size: .8rem;
  line-height: 1.8;
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  max-width: var(--mw);
  margin: 0 auto;
  gap: 16px;
}

.footer__logo {
  color: var(--coral);
  font-family: var(--ff-head);
  font-size: 1rem;
  font-weight: 700;
}

.footer__links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer__links a {
  color: var(--muted);
}

.footer__links a:hover {
  color: var(--coral);
}

.footer__copy {
  flex-basis: 100%;
  max-width: 720px;
  margin: 16px auto 0;
  color: var(--dim);
  font-size: .72rem;
  font-style: italic;
  line-height: 1.6;
  text-align: center;
}

@media (max-width: 768px) {
  .nav__links {
    display: none;
  }
}

@media (max-width: 767px) {
  .nav {
    flex-wrap: wrap;
    gap: .5rem;
    padding: .5rem .75rem;
  }

  .nav__logo {
    flex: 1 1 auto;
    justify-content: flex-start;
  }

  .lang-switch {
    flex: 0 0 auto;
    margin-right: 0;
  }

  .nav > .btn {
    flex: 1 0 100%;
    width: 100%;
  }

  .outcome-grid,
  .narrative-grid {
    grid-template-columns: 1fr;
  }

  .keynote-hero h1 {
    font-size: clamp(2.6rem, 13vw, 4.5rem);
  }

  .funded-note {
    margin-inline: 1.25rem;
  }

  .footer {
    padding: 2rem 1.25rem;
  }

  .footer__inner {
    align-items: flex-start;
  }

  .footer__links {
    width: 100%;
    flex-wrap: wrap;
    gap: 0;
  }

  .footer__links li {
    flex: 1 1 50%;
    min-width: 0;
  }

  .footer__links a {
    width: 100%;
    justify-content: flex-start;
  }
}

:root {
  --keynote-navy: #090B16;
  --keynote-navy-raised: #11152A;
  --keynote-navy-soft: #181D36;
  --keynote-coral: #E8614D;
  --keynote-teal: #28D7BF;
  --keynote-violet: #7C6CF2;
  --keynote-text: #F7F8FC;
  --keynote-muted: #ADB5CC;
  --keynote-border: rgba(255, 255, 255, .14);
  --keynote-shadow: 0 24px 70px rgba(0, 0, 0, .36);
  --keynote-radius: 18px;
  --keynote-content: 1200px;
  --keynote-transition: 180ms ease;
}

html {
  scrollbar-gutter: stable;
}

html.dialog-open,
html.dialog-open body {
  overflow: hidden;
}

.keynote-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background:
    radial-gradient(circle at 78% 24%, rgba(124, 108, 242, .23), transparent 34rem),
    linear-gradient(145deg, var(--keynote-navy) 0%, #0E1122 68%, #17142D 100%);
  color: var(--keynote-text);
  padding: clamp(5.5rem, 10vw, 9rem) max(1.25rem, calc((100% - var(--keynote-content)) / 2));
}

.keynote-hero::after {
  position: absolute;
  z-index: -1;
  right: -7rem;
  bottom: -11rem;
  width: 28rem;
  aspect-ratio: 1;
  border: 1px solid rgba(40, 215, 191, .22);
  border-radius: 50%;
  content: "";
}

.keynote-hero h1 {
  max-width: 16ch;
  margin: 0;
  font-family: var(--ff-head, "Space Grotesk", system-ui, sans-serif);
  font-size: clamp(2.8rem, 7vw, 6.7rem);
  line-height: .96;
  letter-spacing: -.055em;
  text-wrap: balance;
}

.keynote-hero p {
  max-width: 720px;
  color: var(--keynote-muted);
  font-family: var(--ff-body, "Plus Jakarta Sans", system-ui, sans-serif);
  line-height: 1.75;
}

/* Interactive target contract. Inline prose links keep their natural flow; use
   .keynote-hit-target or the explicit research/source-link hooks below. */
:where(
  button,
  [role="button"],
  [data-slide-open],
  [data-dialog-close],
  .btn,
  .primary-invite-cta,
  .keynote-hit-target,
  .keynote-actions a,
  .speaker-strip a,
  .organizer-resource a,
  .related-talks a,
  .slide-preview__caption a,
  .research-foundation a,
  .final-cta p a,
  .faq summary,
  .skip-link
) {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
}

.skip-link {
  position: fixed;
  z-index: 1000;
  inset-block-start: 0.5rem;
  inset-inline-start: 0.5rem;
  max-width: calc(100vw - 1rem);
  padding: 0.65rem 1rem;
  color: #fff;
  background: #111;
  border-radius: 0.35rem;
  transform: translateY(calc(-100% - 1rem));
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
}

.proof-rail {
  box-sizing: border-box;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: min(calc(100% - 2.5rem), var(--keynote-content));
  max-width: var(--keynote-content);
  margin: clamp(-2.25rem, -4vw, -1.25rem) auto 0;
  border: 1px solid var(--keynote-border);
  border-radius: var(--keynote-radius);
  background: rgba(17, 21, 42, .96);
  box-shadow: var(--keynote-shadow);
  color: var(--keynote-text);
}

.proof-rail > * {
  min-width: 0;
  padding: clamp(1.1rem, 2.4vw, 1.75rem);
}

.proof-rail > * + * {
  border-left: 1px solid var(--keynote-border);
}

.proof-rail strong {
  display: block;
  margin-bottom: .45rem;
  color: var(--keynote-teal);
  font-family: var(--ff-head, "Space Grotesk", system-ui, sans-serif);
}

.takeback-grid,
.fit-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.takeback-grid > *,
.fit-grid > * {
  min-width: 0;
  border: 1px solid var(--keynote-border);
  border-radius: var(--keynote-radius);
  background: var(--keynote-navy-raised);
  color: var(--keynote-muted);
  padding: clamp(1.25rem, 3vw, 2rem);
}

.takeback-grid > *:nth-child(2n) {
  border-top-color: rgba(40, 215, 191, .65);
}

.takeback-grid strong,
.fit-grid strong {
  color: var(--keynote-text);
}

.slide-preview-grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(15rem, 1fr);
  grid-template-areas:
    "featured supporting-one"
    "featured supporting-two";
  align-items: start;
  gap: clamp(1rem, 2vw, 1.5rem);
}

.slide-preview-grid > .slide-preview:first-child {
  grid-area: featured;
}

.slide-preview-grid > .slide-preview:nth-child(2) {
  grid-area: supporting-one;
}

.slide-preview-grid > .slide-preview:nth-child(3) {
  grid-area: supporting-two;
}

.slide-preview {
  min-width: 0;
  margin: 0;
}

.slide-preview__affordance {
  display: none;
  align-items: center;
  gap: .6rem;
  margin: 0 0 1rem;
  color: var(--keynote-teal);
  font-family: var(--ff-body, "Plus Jakarta Sans", system-ui, sans-serif);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .04em;
}

.slide-preview__affordance::after {
  content: "\2192";
  font-size: 1.25rem;
  line-height: 1;
}

.slide-preview > [data-slide-open],
.slide-preview__frame {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border: 1px solid var(--keynote-border);
  border-radius: clamp(10px, 1.5vw, 18px);
  background: var(--keynote-navy-raised);
  box-shadow: var(--keynote-shadow);
  color: var(--keynote-text);
}

button[data-slide-open] {
  min-height: 44px;
  appearance: none;
  padding: 0;
  cursor: zoom-in;
  font: inherit;
  text-align: inherit;
}

button[data-slide-open]:disabled {
  cursor: default;
}

.slide-preview > [data-slide-open]:disabled::after {
  display: none;
}

.slide-preview > [data-slide-open]::after {
  position: absolute;
  right: .8rem;
  bottom: .8rem;
  display: grid;
  width: 44px;
  min-height: 44px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, .24);
  border-radius: 50%;
  background: rgba(9, 11, 22, .88);
  color: var(--keynote-text);
  content: "+";
  font-size: 1.35rem;
  line-height: 1;
  transition: opacity var(--keynote-transition);
}

.slide-preview > [data-slide-open]:hover::after {
  background: var(--keynote-coral);
  opacity: .86;
}

.slide-preview img,
.slide-preview svg,
.slide-preview__frame > img,
.slide-preview__frame > svg {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.slide-preview__caption {
  display: grid;
  gap: .35rem;
  padding: .9rem .15rem 0;
  color: var(--keynote-muted);
  font-family: var(--ff-body, "Plus Jakarta Sans", system-ui, sans-serif);
  font-size: clamp(.82rem, 1.2vw, .95rem);
  line-height: 1.6;
}

.slide-preview__caption strong,
.slide-preview__caption a {
  color: var(--keynote-text);
}

.slide-preview__caption a {
  justify-self: start;
  text-decoration-color: var(--keynote-teal);
  text-underline-offset: .2em;
}

.platform-comparison {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(.45rem, 1.2vw, 1rem);
}

.platform-comparison__column {
  min-width: 0;
  padding: clamp(.45rem, 1.2vw, .9rem);
  border: 1px solid var(--keynote-border);
  border-radius: 10px;
  background: rgba(9, 11, 22, .5);
}

.platform-comparison__name {
  margin: 0 0 .4rem;
  color: var(--keynote-text);
  font-family: var(--ff-head, "Space Grotesk", system-ui, sans-serif);
}

.platform-comparison__metrics {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .35rem;
}

.platform-comparison__metric {
  display: grid;
  color: var(--keynote-muted);
  font-size: clamp(.58rem, .9vw, .78rem);
}

.platform-comparison__metric b {
  color: var(--keynote-teal);
  font-family: var(--ff-head, "Space Grotesk", system-ui, sans-serif);
  font-size: clamp(.85rem, 1.8vw, 1.45rem);
}

.research-foundation {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(18rem, .85fr);
  gap: clamp(1.5rem, 4vw, 4rem);
  border: 1px solid rgba(40, 215, 191, .32);
  border-radius: var(--keynote-radius);
  background:
    linear-gradient(135deg, rgba(40, 215, 191, .09), transparent 44%),
    var(--keynote-navy-raised);
  color: var(--keynote-muted);
  padding: clamp(1.5rem, 5vw, 3.75rem);
}

.research-foundation h2,
.research-foundation h3 {
  color: var(--keynote-text);
}

.research-foundation a {
  color: var(--keynote-teal);
}

.event-proof {
  display: grid;
  grid-template-columns: minmax(0, 760px);
  gap: 1rem;
}

.event-proof figure {
  min-width: 0;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--keynote-border);
  border-radius: var(--keynote-radius);
  background: var(--keynote-navy-raised);
}

.event-proof img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: auto;
  object-fit: cover;
}

.event-proof figcaption {
  padding: 1rem;
  color: var(--keynote-muted);
  line-height: 1.55;
}

.speaker-strip,
.organizer-resource {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: clamp(1rem, 3vw, 2rem);
  border: 1px solid var(--keynote-border);
  border-radius: var(--keynote-radius);
  background: var(--keynote-navy-raised);
  color: var(--keynote-muted);
  padding: clamp(1.25rem, 3vw, 2rem);
}

.speaker-strip img {
  width: clamp(72px, 9vw, 112px);
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 50%;
}

.speaker-strip strong,
.organizer-resource strong {
  color: var(--keynote-text);
}

.speaker-strip a,
.organizer-resource a,
.related-talks a {
  color: var(--keynote-coral);
  font-weight: 700;
  text-underline-offset: .25em;
}

.organizer-resource {
  grid-template-columns: minmax(0, 1fr) auto;
  border-top-color: var(--keynote-violet);
}

.related-talks {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.related-talks a {
  justify-content: space-between;
  border: 1px solid var(--keynote-border);
  border-radius: 12px;
  background: var(--keynote-navy-raised);
  padding: 1rem;
  color: var(--keynote-text);
  text-decoration: none;
  transition: opacity var(--keynote-transition);
}

.related-talks a:hover {
  border-color: var(--keynote-coral);
  background: var(--keynote-navy-soft);
  opacity: .88;
}

.keynote-dialog {
  width: min(94vw, 1120px);
  max-width: 1120px;
  max-height: 92dvh;
  overflow: auto;
  margin: auto;
  padding: 0;
  border: 1px solid var(--keynote-border);
  border-radius: var(--keynote-radius);
  background: var(--keynote-navy);
  box-shadow: var(--keynote-shadow);
  color: var(--keynote-text);
}

.keynote-dialog::backdrop {
  background: rgba(2, 3, 10, .88);
  backdrop-filter: blur(5px);
}

.keynote-dialog__body {
  position: relative;
  padding: clamp(3.5rem, 6vw, 5rem) clamp(1rem, 3vw, 2rem) clamp(1rem, 3vw, 2rem);
}

.keynote-dialog img,
.keynote-dialog svg {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: contain;
  background: var(--keynote-navy-raised);
}

.keynote-dialog [data-dialog-close] {
  position: absolute;
  z-index: 1;
  top: .65rem;
  right: .65rem;
  display: grid;
  min-width: 44px;
  min-height: 44px;
  place-items: center;
  border: 1px solid var(--keynote-border);
  border-radius: 50%;
  background: var(--keynote-navy-soft);
  color: var(--keynote-text);
  cursor: pointer;
  font: inherit;
}

:where(.keynote-hero, .proof-rail, .takeback-grid, .slide-preview-grid,
  .research-foundation, .fit-grid, .event-proof, .speaker-strip,
  .organizer-resource, .related-talks, .keynote-dialog)
  :where(a, button, [tabindex]):focus-visible {
  outline: 3px solid var(--keynote-teal);
  outline-offset: 4px;
  box-shadow: 0 0 0 7px rgba(9, 11, 22, .9);
}

@media (max-width: 1024px) {
  .proof-rail {
    margin-inline: 1.25rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .proof-rail > * + * {
    border-left: 0;
  }

  .proof-rail > *:nth-child(even) {
    border-left: 1px solid var(--keynote-border);
  }

  .proof-rail > *:nth-child(n + 3) {
    border-top: 1px solid var(--keynote-border);
  }

  .research-foundation {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 768px) and (max-width: 1024px) {
  .slide-preview-grid {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 1rem;
    padding: .25rem .25rem 1.25rem;
    overscroll-behavior-inline: contain;
  }

  .slide-preview {
    flex: 0 0 min(82vw, 720px);
    scroll-snap-align: start;
    scroll-snap-stop: always;
  }

  .slide-preview__affordance {
    display: flex;
  }
}

@media (max-width: 767px) {
  .keynote-hero {
    padding-inline: 1.25rem;
  }

  .proof-rail,
  .takeback-grid,
  .fit-grid,
  .event-proof,
  .speaker-strip,
  .organizer-resource,
  .related-talks {
    grid-template-columns: 1fr;
  }

  .proof-rail > *:nth-child(even) {
    border-left: 0;
  }

  .proof-rail > * + * {
    border-top: 1px solid var(--keynote-border);
  }

  .speaker-strip,
  .organizer-resource {
    align-items: start;
  }

  .slide-preview-grid {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-areas:
      "featured"
      "supporting-one"
      "supporting-two";
    overflow: visible;
  }

  .slide-preview {
    width: 100%;
    flex: none;
    scroll-snap-align: none;
  }

  .slide-preview__affordance {
    display: none;
  }

  .slide-preview > [data-slide-open],
  .slide-preview__frame {
    border-radius: 10px;
  }

  .keynote-dialog {
    width: calc(100vw - 1rem);
    max-height: calc(100dvh - 1rem);
    border-radius: 12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .slide-preview > [data-slide-open]::after,
  .related-talks a {
    transition: none;
  }

  .slide-preview-grid {
    scroll-behavior: auto;
  }
}