/* =====================================================================
   Veris AI — speaking.html only.

   Deliberately a separate stylesheet rather than an append to styles.css:
   index.html and work.html then never download it, styles.css is provably
   unmodified by this build, and Scott's coming professional-tone redesign
   can rework this page without touching the shared sheet. Everything here
   is scoped to .spk-* and consumes the existing :root tokens.

   The one real design problem this solves: the only footage of Scott on
   stage is 9:16 phone video shot from the floor. A 16:9 crop of it keeps a
   narrow horizontal band and decapitates him, so the hero does not crop it
   into landscape at all. On a portrait viewport the clip simply fills the
   background — the aspect it was shot in. On desktop it is anchored right
   at native aspect behind a gradient that resolves to solid ground under
   the headline.
   ===================================================================== */

.spk-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: flex;
  align-items: center;
  min-height: clamp(34rem, 82vh, 46rem);
  padding-block: clamp(6rem, 12vw, 9rem) clamp(3.5rem, 8vw, 6rem);
  border-bottom: 1px solid var(--line);
  background: var(--ink-0);
}

.spk-hero-media {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.spk-hero-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  /* Bias upward: he stands in the upper two-thirds of the frame and the
     lower third is stage skirt and hotel carpet. */
  object-position: center 34%;
}

.spk-hero-scrim {
  position: absolute;
  inset: 0;
  /* Portrait: the text sits directly over the clip, so this does real work.
     These stops are MEASURED, not eyeballed. The step-and-repeat banner behind
     Scott is near-white, and it lands squarely behind the headline. Compositing
     the scrim over eight real frames sampled across the loop and computing WCAG
     contrast against the actual pixels:

         mid stop 66%  ->  3.83–4.03 : 1   FAILS AA (needs 4.5)
         mid stop 78%  ->  5.97–6.18 : 1   passes with margin

     So 66% was a real accessibility defect, not a close call, and it looked
     fine by eye. Do not lower these to make the clip brighter without
     re-running that measurement. */
  background:
    linear-gradient(
      180deg,
      color-mix(in oklch, var(--ink-0) 90%, transparent) 0%,
      color-mix(in oklch, var(--ink-0) 78%, transparent) 30%,
      color-mix(in oklch, var(--ink-0) 90%, transparent) 66%,
      var(--ink-0) 100%
    );
}

.spk-hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
}

.spk-hero-copy { max-width: 40rem; }

.spk-hero h1 {
  font-size: var(--step-display);
  letter-spacing: -0.032em;
  text-wrap: balance;
  margin: 0 0 1.35rem;
}

.spk-hero-lead {
  font-size: var(--step-body);
  color: var(--paper-2);
  max-width: 34rem;
  text-wrap: pretty;
  margin: 0 0 2rem;
}

/* ---------------------------------------------------------------------
   WCAG 2.2.2 (Level A): the hero loop runs longer than five seconds
   alongside other content, so it needs a visible, keyboard-operable pause
   control. It is a real <button>; its label and state are driven off the
   video's own play/pause events rather than an assumed boolean, so it
   stays honest when a browser silently refuses autoplay.
   --------------------------------------------------------------------- */
.spk-media-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 2.25rem;
  padding: 0.5rem 0.85rem;
  background: color-mix(in oklch, var(--ink-1) 86%, transparent);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  color: var(--paper-2);
  font-family: var(--font-display);
  font-size: var(--step-micro);
  font-weight: 500;
  letter-spacing: 0.02em;
  cursor: pointer;
  transition: color 0.18s var(--ease-out-quart), border-color 0.18s var(--ease-out-quart);
}

.spk-media-toggle:hover {
  color: var(--paper);
  border-color: var(--line-gold);
}

.spk-media-toggle-icon {
  width: 9px;
  height: 11px;
  flex-shrink: 0;
  background: var(--gold);
  /* Paused (the default): a play triangle. */
  clip-path: polygon(0 0, 100% 50%, 0 100%);
}

.spk-media-toggle[data-playing="true"] .spk-media-toggle-icon {
  /* Playing: two pause bars. */
  clip-path: polygon(0 0, 36% 0, 36% 100%, 0 100%, 0 0, 64% 0, 100% 0, 100% 100%, 64% 100%, 64% 0);
}

/* Without JS the loop never starts, so the control would be a lie. */
html:not(.js) .spk-media-toggle { display: none; }

/* ---------------------------------------------------------------------
   Pull-quote
   --------------------------------------------------------------------- */
.spk-quote {
  margin: clamp(2.5rem, 5vw, 4rem) 0 0;
  padding-left: clamp(1.1rem, 2.5vw, 1.9rem);
  border-left: 2px solid var(--gold);
  max-width: 46rem;
}

.spk-quote p {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 2.6vw, 2rem);
  font-weight: 600;
  letter-spacing: -0.022em;
  color: var(--paper);
  text-wrap: balance;
  margin: 0 0 0.7rem;
}

.spk-quote cite {
  font-family: var(--font-display);
  font-size: var(--step-micro);
  font-style: normal;
  letter-spacing: 0.04em;
  color: var(--paper-3);
}

/* ---------------------------------------------------------------------
   Clips. 9:16 is very tall, so each video is a fixed-width column beside
   its caption rather than a full-width card, which would push a single
   clip past a thousand pixels of height on desktop.
   --------------------------------------------------------------------- */
.spk-clips {
  display: grid;
  gap: clamp(2.25rem, 4vw, 3.25rem);
  margin: 0;
}

.spk-clip {
  display: grid;
  grid-template-columns: minmax(0, 15rem) minmax(0, 1fr);
  gap: clamp(1.25rem, 3vw, 2.25rem);
  align-items: start;
  margin: 0;
  padding-top: clamp(2.25rem, 4vw, 3.25rem);
  border-top: 1px solid var(--line-soft);
}

.spk-clip:first-child { padding-top: 0; border-top: 0; }

.spk-clip-video {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 9 / 16;
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--r);
  /* The same machined sheen the interface captures carry elsewhere. */
  box-shadow: inset 0 1px 0 color-mix(in oklch, var(--paper) 7%, transparent);
}

.spk-clip figcaption h3 {
  font-size: var(--step-h3);
  margin: 0 0 0.6rem;
  text-wrap: balance;
}

.spk-clip figcaption p {
  color: var(--paper-2);
  max-width: 42ch;
  margin: 0 0 0.9rem;
}

.spk-clip-meta {
  display: inline-block;
  font-family: var(--font-display);
  font-size: var(--step-micro);
  letter-spacing: 0.05em;
  color: var(--paper-3);
}

/* ---------------------------------------------------------------------
   Credits. Deliberately a hairline list, not a logo wall: two real
   engagements do not make a wall, and the event's mark is theirs, not ours.
   --------------------------------------------------------------------- */
.spk-credits { list-style: none; margin: 0; padding: 0; }

.spk-credit {
  display: grid;
  grid-template-columns: minmax(0, 20rem) minmax(0, 1fr);
  gap: clamp(0.75rem, 3vw, 2.5rem);
  padding-block: clamp(1.5rem, 3vw, 2.25rem);
  border-top: 1px solid var(--line-soft);
}

.spk-credit:last-child { border-bottom: 1px solid var(--line-soft); }

.spk-credit-name h3 {
  font-size: var(--step-h3);
  margin: 0 0 0.3rem;
}

.spk-credit-name span {
  font-family: var(--font-display);
  font-size: var(--step-micro);
  letter-spacing: 0.04em;
  color: var(--paper-3);
}

.spk-credit-detail p { color: var(--paper-2); margin: 0; }

/* ---------------------------------------------------------------------
   Organiser bio
   --------------------------------------------------------------------- */
.spk-bio {
  display: grid;
  grid-template-columns: minmax(0, 17rem) minmax(0, 1fr);
  gap: clamp(1.5rem, 4vw, 3rem);
  align-items: start;
}

.spk-bio-photo {
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
  border-radius: var(--r);
}

.spk-bio-copy h3 {
  font-size: var(--step-h3);
  margin: 0 0 0.6rem;
}

.spk-bio-copy p { color: var(--paper-2); }

.spk-bio-copy h3 ~ h3 { margin-top: 1.75rem; }

.spk-bio-copy .spec-list { margin-top: 0.4rem; }

.spk-bio-note {
  margin-top: 1.5rem;
  padding-top: 1.15rem;
  border-top: 1px solid var(--line-soft);
  font-size: var(--step-small);
  color: var(--paper-3);
}

/* ---------------------------------------------------------------------
   Desktop: stop overlaying the clip, put it beside the copy instead.
   --------------------------------------------------------------------- */
@media (min-width: 900px) {
  .spk-hero-media { left: auto; width: 47%; }

  .spk-hero-video { object-position: center 30%; }

  .spk-hero-scrim {
    background:
      linear-gradient(
        90deg,
        var(--ink-0) 0%,
        color-mix(in oklch, var(--ink-0) 78%, transparent) 30%,
        color-mix(in oklch, var(--ink-0) 38%, transparent) 68%,
        color-mix(in oklch, var(--ink-0) 24%, transparent) 100%
      ),
      linear-gradient(
        180deg,
        color-mix(in oklch, var(--ink-0) 55%, transparent) 0%,
        transparent 26%,
        transparent 74%,
        color-mix(in oklch, var(--ink-0) 55%, transparent) 100%
      );
  }

  .spk-hero-copy { max-width: 32rem; }
}

@media (max-width: 899px) {
  .spk-hero-copy { max-width: none; }
}

@media (max-width: 720px) {
  .spk-clip,
  .spk-credit,
  .spk-bio {
    grid-template-columns: minmax(0, 1fr);
  }
  .spk-clip-video { max-width: 18rem; }
  .spk-bio-photo { max-width: 15rem; }
}

@media (prefers-reduced-motion: reduce) {
  .spk-media-toggle { transition: none; }
}