/*
  Continental Media — hero block styles.
  Namespaced under .cm-hero so this file can be dropped into any page
  alongside future blocks without collisions. Depends on
  assets/css/tokens.css for brand tokens (colors, type, motion, radius).
*/

.cm-hero {
  position: relative;
  height: 100vh;
  height: 100svh;
  min-height: 560px;
  width: 100%;
  overflow: hidden;
  background: var(--cm-color-bg);
  color: var(--cm-color-fg);
  isolation: isolate;
  /* Base for the un-sized .cm-hero__stage wrapper below; every real text
     node still sets its own rem size, and rem always resolves against the
     root <html>, so this cannot affect the type scale itself. */
  font-size: 0.9375rem;
}

/* ---------- Media layer ---------- */

.cm-hero__media {
  position: sticky;
  top: 0;
  height: 100vh;
  height: 100svh;
  min-height: 560px;
  width: 100%;
  overflow: hidden;
  z-index: 0;
}

.cm-hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
  transform: translate3d(0, var(--cm-parallax-y, 0px), 0) scale(var(--cm-parallax-scale, 1.06));
  transform-origin: center;
  will-change: transform;
  background: var(--cm-color-bg);
}

/* Gradient overlay: black → transparent, bottom to top only. Never a flat tint. */
.cm-hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to top,
    rgba(4, 5, 8, 0.88) 0%,
    rgba(4, 5, 8, 0.72) 22%,
    rgba(4, 5, 8, 0.42) 45%,
    rgba(4, 5, 8, 0.12) 68%,
    rgba(4, 5, 8, 0) 85%
  );
  pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
  .cm-hero__video {
    transform: none;
  }
}

/* ---------- Content stage ---------- */

.cm-hero__stage {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: flex;
  align-items: flex-end;
  pointer-events: none;
}

.cm-hero__content {
  pointer-events: auto;
  width: 100%;
  max-width: var(--cm-content-max);
  padding: 0 var(--cm-gutter) clamp(3rem, 8vh, 6.5rem);
}

.cm-hero__title {
  margin: 0;
  font-family: var(--cm-font-display);
  font-weight: 700;
  font-size: clamp(2.5rem, 1.6rem + 4vw, 6rem);
  line-height: 1.02;
  letter-spacing: -0.03em;
  text-wrap: balance;
}

/* Skip-link lands here (tabindex="-1"): stay visible, don't suppress it */
.cm-hero__title:focus-visible {
  outline: 2px solid var(--cm-color-fg);
  outline-offset: 8px;
}

.cm-hero__subtitle {
  margin: 0.85em 0 0;
  font-family: var(--cm-font-body);
  font-weight: 500;
  font-size: clamp(1.0625rem, 0.95rem + 0.7vw, 1.375rem);
  line-height: 1.4;
  color: var(--cm-color-fg);
  max-width: 34ch;
}

.cm-hero__body {
  margin: 0.9em 0 0;
  font-family: var(--cm-font-body);
  font-weight: 400;
  font-size: clamp(0.9375rem, 0.88rem + 0.25vw, 1.0625rem);
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.78);
  max-width: 38ch;
}

.cm-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.875rem;
  margin-top: 1.85rem;
}

.cm-hero__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--cm-font-body);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.01em;
  text-decoration: none;
  border-radius: var(--cm-radius-sm);
  padding: 0.95em 1.75em;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition:
    background-color var(--cm-duration-fast) var(--cm-ease-out),
    border-color var(--cm-duration-fast) var(--cm-ease-out),
    color var(--cm-duration-fast) var(--cm-ease-out),
    transform var(--cm-duration-fast) var(--cm-ease-out);
}

.cm-hero__cta:active {
  transform: translateY(1px);
}

.cm-hero__cta--primary {
  background: var(--cm-color-accent);
  color: var(--cm-color-on-accent);
  border-color: var(--cm-color-accent);
}

.cm-hero__cta--primary:hover {
  background: var(--cm-color-accent-hover);
  border-color: var(--cm-color-accent-hover);
}

.cm-hero__cta--secondary {
  background: transparent;
  color: var(--cm-color-fg);
  border-color: rgba(255, 255, 255, 0.55);
}

.cm-hero__cta--secondary:hover {
  border-color: var(--cm-color-fg);
  background: rgba(255, 255, 255, 0.08);
}

.cm-hero__cta:focus-visible {
  outline: 2px solid var(--cm-color-fg);
  outline-offset: 3px;
}

/* ---------- Cinematic entrance (load, not scroll) ---------- */

.cm-hero [data-cm-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity var(--cm-duration-slow) var(--cm-ease-out),
    transform var(--cm-duration-slow) var(--cm-ease-out);
}

.cm-hero.is-ready [data-cm-reveal] {
  opacity: 1;
  transform: translateY(0);
}

.cm-hero.is-ready .cm-hero__title {
  transition-delay: 60ms;
}

.cm-hero.is-ready .cm-hero__subtitle {
  transition-delay: 220ms;
}

.cm-hero.is-ready .cm-hero__body {
  transition-delay: 340ms;
}

.cm-hero.is-ready .cm-hero__actions {
  transition-delay: 460ms;
}

@media (prefers-reduced-motion: reduce) {
  .cm-hero [data-cm-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ---------- Responsive ---------- */

@media (max-width: 640px) {
  .cm-hero__stage {
    align-items: flex-end;
  }

  .cm-hero__content {
    max-width: 100%;
    padding-bottom: clamp(2.5rem, 9vh, 4rem);
  }

  .cm-hero__actions {
    flex-direction: column;
    align-items: stretch;
  }

  .cm-hero__cta {
    width: 100%;
  }
}