/* ============================================================
   HDR10+ Case Study — page-specific styles
   Loaded only by project-hdr10.html, after main.css + custom.css.
   Uses the shared portfolio theme variables so light/dark mode keep working.
   All selectors are prefixed .hdr- to avoid touching shared components.
   ============================================================ */

/* ------ Tokens ------ */
.hdr-hero,
.hdr-spectrum,
.hdr-spectrum-section,
.hdr-media {
  /* HDR10+ spectrum, taken from the project's UI/UX style sheet */
  --hdr-spectrum: linear-gradient(90deg, #ff1f8f 0%, #ff6700 25%, #ffe600 50%, #00ff97 75%, #009eff 100%);
  --hdr-radius: 16px; /* matches "Unified Image Border Radius" in custom.css */
  --hdr-ease: cubic-bezier(.23, .65, .74, 1.09); /* shared motion easing */
}

/* ------ Section labels (h2 styled like the template's split subtitles) ------ */
.hdr-label {
  display: block;
  overflow: hidden;
  margin: 0;
  color: var(--t-medium);
  font: normal 600 1.4rem/1.6 var(--_font-accent);
  text-transform: uppercase;
  letter-spacing: -0.05rem;
}
.hdr-label span {
  display: inline-flex;
}

/* ------ Hero ------ */
/* The home page keeps its hero dark in both themes and forces the header white.
   The case-study hero follows the same rule so the shared header stays legible. */
.hdr-hero {
  padding-top: 11rem;
  padding-bottom: 2rem;
}
@media only screen and (min-width: 1200px) {
  .hdr-hero { padding-top: 13rem; }
}
:root[color-scheme="light"] .hdr-hero {
  --base: var(--base--dark);
  --base-tint: var(--base-tint--dark);
  --t-bright: var(--t-bright--dark);
  --t-medium: var(--t-medium--dark);
  --t-muted: var(--t-muted--dark);
  --t-muted-extra: var(--t-muted-extra--dark);
  background-color: var(--base--dark);
  color: var(--t-bright--dark);
}

/* View Live Site button: white with black text at night; black with white text by day */
.hdr-hero__actions .btn-default-accent {
  background-color: #fff;
  border-color: #fff;
  color: #000;
}
.hdr-hero__actions .btn-default-accent i svg { fill: #000; }
:root[color-scheme="light"] .hdr-hero__actions .btn-default-accent {
  background-color: #000;
  border-color: rgba(255, 255, 255, 0.35);
  color: #fff;
}
:root[color-scheme="light"] .hdr-hero__actions .btn-default-accent i svg { fill: #fff; }

.hdr-hero__actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1.6rem;
}

.hdr-brand {
  width: min(56rem, 78vw);
  margin: 0 0 2.4rem;
}
.hdr-brand__crop {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 4.45 / 1;
  overflow: hidden;
}
.hdr-brand__crop img {
  position: absolute;
  top: 50%;
  left: 50%;
  display: block;
  width: 100%;
  max-width: none;
  height: auto;
  transform: translate(-50%, -50%);
}
@media only screen and (min-width: 1200px) {
  .hdr-hero__actions {
    align-items: flex-end;
  }
}

/* project metadata */
.hdr-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0;
  margin: 3.6rem 0 0;
  border-top: 1px solid var(--st-muted, rgba(128, 128, 128, 0.2));
}
@media only screen and (min-width: 768px) {
  .hdr-meta { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media only screen and (min-width: 1200px) {
  .hdr-meta { grid-template-columns: repeat(6, minmax(0, 1fr)); margin-top: 5rem; }
}
.hdr-meta__item {
  padding: 1.6rem 1.6rem 1.6rem 0;
  border-bottom: 1px solid var(--st-muted, rgba(128, 128, 128, 0.2));
}
.hdr-meta dt {
  margin-bottom: 0.6rem;
  color: var(--t-medium);
  font: normal 600 1.2rem/1.4 var(--_font-accent);
  text-transform: uppercase;
  letter-spacing: -0.03rem;
}
.hdr-meta dd {
  margin: 0;
  color: var(--t-bright);
  font: normal 500 1.5rem/1.4 var(--_font-default);
}

/* ------ Media (images + video) ------ */
.hdr-media {
  position: relative;
  margin: 0;
}
.hdr-media__frame {
  position: relative;
  overflow: hidden;
  border-radius: var(--hdr-radius);
  background: #0a0a0a;
  isolation: isolate;
}
.hdr-media__frame--video {
  aspect-ratio: 16 / 9;
}
.hdr-media__frame img,
.hdr-media__frame video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hdr-caption {
  max-width: 64rem;
  margin-top: 1.6rem;
  color: var(--t-medium);
  font: normal 400 1.5rem/1.6 var(--_font-default);
}
.hdr-caption__label {
  display: block;
  margin-bottom: 0.4rem;
  color: var(--t-bright);
  font: normal 600 1.2rem/1.4 var(--_font-accent);
  text-transform: uppercase;
  letter-spacing: -0.03rem;
}

/* hero media spacing + restrained HDR glow behind it */
.hdr-media--hero {
  margin-top: 1rem;
}
.hdr-glow {
  position: absolute;
  inset: 8% 6% -4%;
  z-index: -1;
  border-radius: 50%;
  background: var(--hdr-spectrum);
  filter: blur(70px);
  opacity: 0.22;
  pointer-events: none;
  animation: hdr-glow-drift 14s ease-in-out infinite alternate;
}
@keyframes hdr-glow-drift {
  from { transform: translateX(-3%) scale(0.98); opacity: 0.18; }
  to   { transform: translateX(3%) scale(1.02);  opacity: 0.26; }
}

/* two-column media composition */
.hdr-duo {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
}
@media only screen and (min-width: 1200px) {
  .hdr-duo {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 3rem;
  }
}

/* spacing between stacked media blocks inside a section */
.hdr-media + .hdr-media,
.mxd-block + .mxd-block > .hdr-media,
.mxd-block + .mxd-block > .hdr-duo {
  margin-top: 4rem;
}
@media only screen and (min-width: 1200px) {
  .mxd-block + .mxd-block > .hdr-media,
  .mxd-block + .mxd-block > .hdr-duo {
    margin-top: 6rem;
  }
}

/* ------ Grid alignment for full-width blocks ------
   Media and grids sit directly in .mxd-block (not in .mxd-grid-item),
   so give them the same 3rem gutter the template's grid items use. */
.mxd-block > .hdr-media,
.mxd-block > .hdr-duo,
.mxd-block > .hdr-modules,
.mxd-block > .hdr-audience,
.mxd-block > .mxd-block-split__subtitle {
  padding-left: 3rem;
  padding-right: 3rem;
}

/* ------ Spectrum divider (animated scaleX in JS) ------
   Horizontal padding = grid-l-container padding + grid-item gutter. */
.hdr-spectrum {
  width: 100%;
  padding: 0 3rem;
}
@media only screen and (min-width: 768px)  { .hdr-spectrum { padding: 0 6rem; } }
@media only screen and (min-width: 1600px) { .hdr-spectrum { padding: 0 10rem; } }
.hdr-spectrum span {
  display: block;
  height: 1px;
  background: var(--hdr-spectrum);
  opacity: 0.7;
  transform-origin: left center;
}

/* ------ ACF module grid ------ */
.hdr-intro {
  max-width: 48rem;
  margin-top: 2rem;
}
@media only screen and (min-width: 1200px) {
  .hdr-intro { margin-top: 5.4rem; }
}
.hdr-modules {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
  margin: 3rem 0 0;
  padding: 0;
  list-style: none;
}
@media only screen and (min-width: 768px) {
  .hdr-modules { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media only screen and (min-width: 1200px) {
  .hdr-modules { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.6rem; margin-top: 5rem; }
}
.hdr-module {
  position: relative;
  overflow: hidden;
  padding: 2.4rem;
  border: 1px solid rgba(128, 128, 128, 0.18);
  border-radius: var(--hdr-radius);
  background: var(--base-tint);
  transition: border-color 0.4s ease, transform 0.4s var(--hdr-ease);
}
.hdr-module::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 2px;
  background: var(--hdr-spectrum);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.6s var(--hdr-ease);
}
.hdr-module:hover {
  border-color: rgba(128, 128, 128, 0.35);
}
.hdr-module:hover::after {
  transform: scaleX(1);
}
.hdr-module__num {
  display: block;
  margin-bottom: 2.4rem;
  color: var(--t-medium);
  font: normal 600 1.2rem/1 var(--_font-accent);
}
.hdr-module__name {
  margin: 0 0 0.8rem;
  font: normal 700 2rem/1.2 var(--_font-default);
  letter-spacing: -0.04rem;
  color: var(--t-bright);
}
.hdr-module__descr {
  margin: 0;
  color: var(--t-medium);
  font: normal 400 1.5rem/1.5 var(--_font-default);
}

/* ------ Lists ------ */
.hdr-list {
  margin: 0;
  padding: 0;
  list-style: none;
}
.hdr-list li {
  position: relative;
  padding: 1.4rem 0 1.4rem 2.4rem;
  border-bottom: 1px solid rgba(128, 128, 128, 0.18);
  color: var(--t-bright);
  font: normal 500 1.7rem/1.4 var(--_font-default);
}
.hdr-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  width: 0.8rem; height: 0.8rem;
  margin-top: -0.4rem;
  border-radius: 50%;
  background: currentColor;
}

/* ------ Audience & message ------ */
.hdr-audience {
  display: grid;
  grid-template-columns: 1fr;
  gap: 4rem;
}
@media only screen and (min-width: 1200px) {
  .hdr-audience { grid-template-columns: 5fr 7fr; gap: 6rem; }
}
.hdr-audience__title {
  margin-bottom: 2rem;
  color: var(--t-medium);
  font: normal 600 1.2rem/1.4 var(--_font-accent);
  text-transform: uppercase;
}
.hdr-audience__list {
  margin: 0; padding: 0; list-style: none;
}
.hdr-audience__list li {
  padding: 1.2rem 0;
  border-bottom: 1px solid rgba(128, 128, 128, 0.18);
  color: var(--t-bright);
  font: normal 600 2.2rem/1.3 var(--_font-default);
  letter-spacing: -0.04rem;
}
.hdr-message {
  position: relative;
  margin: 0;
  padding: 3.2rem;
  border-radius: var(--hdr-radius);
  background: #0a0a0a;
  overflow: hidden;
}
.hdr-message::before {
  content: "";
  position: absolute;
  inset: 0;
  padding: 1px;
  border-radius: inherit;
  background: var(--hdr-spectrum);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0.8;
  pointer-events: none;
}
.hdr-message p {
  margin: 0;
  color: #fff;
  font: normal 600 2.8rem/1.2 var(--_font-default);
  letter-spacing: -0.08rem;
}
@media only screen and (min-width: 1200px) {
  .hdr-message { padding: 5rem; }
  .hdr-message p { font-size: 4rem; }
}

/* ------ Interactive section: faint spectrum wash ------ */
.hdr-spectrum-section {
  position: relative;
}
.hdr-spectrum-section::before {
  content: "";
  position: absolute;
  inset: 20% 10% auto;
  height: 40%;
  background: var(--hdr-spectrum);
  filter: blur(120px);
  opacity: 0.07;
  pointer-events: none;
  z-index: -1;
}

/* ------ Placeholders (remove once real content is added) ------ */
.hdr-placeholder {
  color: #ff6700 !important;
  font-family: var(--_font-accent) !important;
}

/* ------ Keyboard focus (visible on all new controls) ------ */
.hdr-media video:focus-visible,
.hdr-hero a:focus-visible,
.split-info__details a:focus-visible {
  outline: 2px solid #009eff;
  outline-offset: 3px;
}

/* ------ Reduced motion ------ */
@media (prefers-reduced-motion: reduce) {
  .hdr-glow { animation: none; }
  .hdr-module,
  .hdr-module::after { transition: none; }
}

/* ------ Hero visual ------ */
.hdr-hero { position: relative; overflow: hidden; }
.hdr-hero > .mxd-container { position: relative; z-index: 1; }
.hdr-hero-visual {
  position: absolute;
  inset: 8rem -2rem auto auto;
  z-index: 0;
  width: clamp(38rem, 50vw, 84rem);
  height: clamp(30rem, 48vw, 72rem);
  pointer-events: none;
  opacity: .9;
  -webkit-mask-image: radial-gradient(ellipse 72% 68% at 58% 48%, #000 30%, rgba(0, 0, 0, .94) 48%, rgba(0, 0, 0, .45) 72%, transparent 100%);
  mask-image: radial-gradient(ellipse 72% 68% at 58% 48%, #000 30%, rgba(0, 0, 0, .94) 48%, rgba(0, 0, 0, .45) 72%, transparent 100%);
}
.hdr-hero-video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  mix-blend-mode: screen;
}
@media only screen and (max-width: 767px) {
  .hdr-hero-visual {
    inset: 9rem -12rem auto auto;
    display: block;
    width: 44rem;
    height: 34rem;
    opacity: .46;
  }
  .hdr-brand { width: min(43rem, 88vw); }
}
@media only screen and (min-width: 768px) and (max-width: 1199px) {
  .hdr-hero-visual { top: 12rem; right: -8rem; opacity: .62; }
}
@media (prefers-reduced-motion: reduce) { .hdr-hero-video { display: none; } }