/* ============================================
   "Two Doors to Hara" — Landing Page
   ============================================ */

.landing {
  position: fixed;
  inset: 0;
  display: flex;
  overflow: hidden;
  z-index: 50;
}

/* --- Centered Logo --- */
.landing__logo {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
  text-align: center;
  pointer-events: none;
  transition: opacity var(--duration-slow) var(--ease-out);
}

.landing__logo-seal {
  display: block;
  margin: 0 auto;
  transition: transform var(--duration-door) var(--ease-in-out);
  will-change: transform;
}

.landing__logo-icon {
  display: block;
  width: clamp(72px, 9vw, 140px);
  aspect-ratio: 1 / 1;
  margin: 0 auto var(--space-md);
  background-color: var(--olive);
  -webkit-mask: url("../assets/images/ICON%20WHITE.png") center / contain no-repeat;
          mask: url("../assets/images/ICON%20WHITE.png") center / contain no-repeat;
  mix-blend-mode: exclusion;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 1400ms var(--ease-out) 200ms,
              transform 1400ms var(--ease-out) 200ms,
              background-color var(--duration-slow) var(--ease-out),
              mix-blend-mode var(--duration-slow) var(--ease-out);
  will-change: opacity, transform;
}

.landing__logo-icon.is-entered {
  opacity: 1;
  transform: translateY(0);
}

.landing__logo-sub {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--olive);
  line-height: 1.7;
  mix-blend-mode: exclusion;
  transition: opacity var(--duration-slow) var(--ease-out);
}

/* --- Door Panels --- */
.door {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding: var(--space-4xl) var(--space-xl);
  cursor: pointer;
  overflow: hidden;
  transition: flex var(--duration-door) var(--ease-in-out);
}

.door::before {
  content: '';
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity var(--duration-base) var(--ease-out);
}

.door:hover::before {
  opacity: 1;
}

/* Clinic door — dark */
.door--clinic {
  background-color: var(--dark);
}

.door--clinic::before {
  background: rgba(58, 69, 52, 0.18);
}

.door--clinic .door__label,
.door--clinic .door__tagline {
  color: var(--ivory);
}

.door--clinic .door__cta {
  color: var(--ivory);
  border-color: rgba(241, 235, 223, 0.3);
}

.door--clinic .door__cta:hover {
  background: var(--ivory);
  color: var(--dark);
}

/* Wellness door — ivory */
.door--wellness {
  background-color: var(--ivory);
}

.door--wellness::before {
  background: rgba(241, 235, 223, 0.25);
}

.door--wellness .door__label,
.door--wellness .door__tagline {
  color: var(--dark);
}

.door--wellness .door__cta {
  color: var(--dark);
  border-color: rgba(58, 69, 52, 0.3);
}

.door--wellness .door__cta:hover {
  background: var(--dark);
  color: var(--ivory);
}

/* Door photo — cinematic monochrome wash beneath the accent.
   mix-blend-mode: luminosity already discards the photo's color channels
   (takes only the source's lightness), so a saturate(0) filter is
   redundant. Dropping the filter chain saves a per-frame paint pass. */
.door__photo {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-size: cover;
  background-position: center;
  mix-blend-mode: luminosity;
  opacity: 0.22;
  transition: opacity 900ms var(--ease-out);
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 95%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 95%);
  animation: doorPhotoDrift 30s ease-in-out infinite alternate;
  will-change: transform, opacity;
  transform: translateZ(0);
}

/* Isolate paint + layout inside each door so the flex transition doesn't
   have to wait on photo/grain/reveal paint work to resolve. */
.door {
  contain: layout paint;
}

.door:hover .door__photo {
  opacity: 0.45;
}

@keyframes doorPhotoDrift {
  from { transform: scale(1) translate(0, 0); }
  to   { transform: scale(1.04) translate(-1%, 0.5%); }
}

/* Door grain — SVG fractal noise overlay, kills the "digital photo" feel */
.door__grain {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.04;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='200' height='200'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/></filter><rect width='200' height='200' filter='url(%23n)' opacity='0.5'/></svg>");
  background-size: 200px 200px;
  background-repeat: repeat;
}

/* Particle canvas — drifts above photo, below door content and logo */
.landing__particles {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
}

/* Door-hover image reveal — character-select arrangement around the icon */
.landing__reveal {
  position: absolute;
  inset: 0;
  z-index: 6;
  pointer-events: none;
}

/* Wrap carries positioning, entrance animation, and drop-shadow.
   `will-change: filter` hints the browser to cache the filtered result
   on a GPU layer so opacity/transform can animate on the compositor
   without forcing per-frame re-rasterization of the shadow. */
.landing__reveal-img-wrap {
  position: absolute;
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.94);
  transition: opacity 700ms var(--ease-out),
              transform 800ms var(--ease-out);
  filter: drop-shadow(0 14px 30px rgba(58, 69, 52, 0.38));
  will-change: filter, opacity, transform;
  pointer-events: none;
}

.landing__reveal-img-wrap.is-entered {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1);
}

.landing__reveal-img {
  display: block;
  width: clamp(140px, 17vw, 240px);
  max-height: 40vh;
  height: auto;
  object-fit: contain;
}

/* Two masks composed with intersect:
   1. Radial fade toward the icon (so icon stays king on overlap)
   2. Linear fade at the bottom (so the source crop isn't a visible hard edge) */
.landing__reveal-img--slot-1 {
  -webkit-mask-image:
    radial-gradient(circle at 82% 68%, transparent 0%, rgba(0,0,0,0.2) 22%, black 48%),
    linear-gradient(to top, transparent 0%, black 18%);
  -webkit-mask-composite: source-in;
  mask-image:
    radial-gradient(circle at 82% 68%, transparent 0%, rgba(0,0,0,0.2) 22%, black 48%),
    linear-gradient(to top, transparent 0%, black 18%);
  mask-composite: intersect;
}
.landing__reveal-img--slot-2 {
  -webkit-mask-image:
    radial-gradient(ellipse 60% 40% at 50% 96%, transparent 0%, rgba(0,0,0,0.2) 30%, black 60%),
    linear-gradient(to top, transparent 0%, black 18%);
  -webkit-mask-composite: source-in;
  mask-image:
    radial-gradient(ellipse 60% 40% at 50% 96%, transparent 0%, rgba(0,0,0,0.2) 30%, black 60%),
    linear-gradient(to top, transparent 0%, black 18%);
  mask-composite: intersect;
}
.landing__reveal-img--slot-3 {
  -webkit-mask-image:
    radial-gradient(circle at 18% 68%, transparent 0%, rgba(0,0,0,0.2) 22%, black 48%),
    linear-gradient(to top, transparent 0%, black 18%);
  -webkit-mask-composite: source-in;
  mask-image:
    radial-gradient(circle at 18% 68%, transparent 0%, rgba(0,0,0,0.2) 22%, black 48%),
    linear-gradient(to top, transparent 0%, black 18%);
  mask-composite: intersect;
}

/* Door accent tile pattern — emanates from center seam, fades outward */
.door__accent {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.03;
}

/* Clinic door: tiles visible on right edge (near center), fade left */
.door--clinic .door__accent {
  mask-image: linear-gradient(to right, transparent 50%, black 100%);
  -webkit-mask-image: linear-gradient(to right, transparent 50%, black 100%);
}

/* Wellness door: tiles visible on left edge (near center), fade right */
.door--wellness .door__accent {
  mask-image: linear-gradient(to left, transparent 50%, black 100%);
  -webkit-mask-image: linear-gradient(to left, transparent 50%, black 100%);
}

/* Mobile: doors are stacked, so flip to vertical — fade from center seam */
@media (max-width: 767px) {
  .door--clinic .door__accent {
    mask-image: linear-gradient(to bottom, transparent 20%, black 100%);
    -webkit-mask-image: linear-gradient(to bottom, transparent 20%, black 100%);
  }

  .door--wellness .door__accent {
    mask-image: linear-gradient(to top, transparent 20%, black 100%);
    -webkit-mask-image: linear-gradient(to top, transparent 20%, black 100%);
  }
}

/* Door content */
.door__content {
  position: relative;
  z-index: 5;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}

.door__label {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  letter-spacing: 0.02em;
  line-height: 1.2;
  max-width: 22ch;
}

.door__tagline {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  max-width: 280px;
  line-height: 1.6;
  opacity: 0.8;
}

.door__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.75rem 2rem;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 1px solid;
  border-radius: var(--radius-full);
  background: transparent;
  cursor: pointer;
  transition: all var(--duration-base) var(--ease-out);
  min-height: 48px;
}

.door__cta-arrow {
  transition: transform var(--duration-base) var(--ease-out);
  font-size: 1.1em;
}

.door:hover .door__cta-arrow {
  transform: translateX(4px);
}

/* --- Hover: Expand hovered door --- */
@media (min-width: 768px) {
  .landing:has(.door--clinic:hover) .door--clinic {
    flex: 1.2;
  }
  .landing:has(.door--clinic:hover) .door--wellness {
    flex: 0.8;
  }
  .landing:has(.door--wellness:hover) .door--wellness {
    flex: 1.2;
  }
  .landing:has(.door--wellness:hover) .door--clinic {
    flex: 0.8;
  }

  /* Tagline fades out entirely while either door is hovered — it belongs to
     the rest state. When neither door is hovered, it returns. */
  .landing:has(.door--clinic:hover) .landing__logo-sub,
  .landing:has(.door--wellness:hover) .landing__logo-sub {
    opacity: 0;
  }

  /* Clinic hovered: icon goes ivory (on expanding dark bg) */
  .landing:has(.door--clinic:hover) .landing__logo-icon {
    background-color: var(--ivory);
    mix-blend-mode: normal;
  }

  /* Wellness hovered: icon goes dark (on expanding ivory bg) */
  .landing:has(.door--wellness:hover) .landing__logo-icon {
    background-color: var(--dark);
    mix-blend-mode: normal;
  }

  /* Seal slides to above the hovered door's title. Only the seal moves;
     the tagline stays centered so it doesn't collide with the title. */
  .landing:has(.door--clinic:hover) .landing__logo-seal {
    transform: translate(-20vw, 10vh);
  }
  .landing:has(.door--wellness:hover) .landing__logo-seal {
    transform: translate(20vw, 10vh);
  }

  /* Reveal image slots — tight huddle around the icon (tag team).
     Clinic icon lands at (30vw, ~57vh); wellness at (70vw, ~57vh).
     Slots 1 & 3 flank close; slot 2 sits as the back-row figure. */
  .landing__reveal-img-wrap--clinic.landing__reveal-img-wrap--slot-1 {
    left: 24vw;
    top: 50vh;
  }
  .landing__reveal-img-wrap--clinic.landing__reveal-img-wrap--slot-2 {
    left: 30vw;
    top: 38vh;
  }
  .landing__reveal-img-wrap--clinic.landing__reveal-img-wrap--slot-3 {
    left: 36vw;
    top: 50vh;
  }

  .landing__reveal-img-wrap--wellness.landing__reveal-img-wrap--slot-1 {
    left: 64vw;
    top: 50vh;
  }
  .landing__reveal-img-wrap--wellness.landing__reveal-img-wrap--slot-2 {
    left: 70vw;
    top: 38vh;
  }
  .landing__reveal-img-wrap--wellness.landing__reveal-img-wrap--slot-3 {
    left: 76vw;
    top: 50vh;
  }
}

/* --- Door Opening Transition States --- */
.landing.opening .landing__logo {
  opacity: 0;
}

.landing.opening-clinic .door--clinic {
  flex: 20;
}
.landing.opening-clinic .door--wellness {
  flex: 0.001;
  overflow: hidden;
  padding: 0;
}

.landing.opening-wellness .door--wellness {
  flex: 20;
}
.landing.opening-wellness .door--clinic {
  flex: 0.001;
  overflow: hidden;
  padding: 0;
}

/* Final state: landing hidden */
.landing.opened {
  opacity: 0;
  pointer-events: none;
}

/* --- Mobile: Stacked Doors --- */
@media (max-width: 767px) {
  .landing {
    flex-direction: column;
  }

  .door {
    justify-content: center;
  }

  .landing__logo {
    z-index: 10;
  }

  /* Wax seal — circular olive disc holding the two doors together at the seam */
  .landing__logo-seal {
    display: flex;
    align-items: center;
    justify-content: center;
    width: clamp(128px, 34vw, 180px);
    aspect-ratio: 1 / 1;
    margin: 0 auto;
    border-radius: 50%;
    background: rgba(136, 146, 109, 0.18);
    border: 1px solid rgba(136, 146, 109, 0.35);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 6px 24px rgba(58, 69, 52, 0.12),
                inset 0 1px 0 rgba(241, 235, 223, 0.15);
  }

  .landing__logo-seal .landing__logo-icon {
    width: 58%;
    margin: 0;
    background-color: var(--olive);
    mix-blend-mode: normal;
  }

  .landing__logo-sub {
    display: none;
  }

  .landing.opening-clinic .door--clinic {
    flex: 50;
  }
  .landing.opening-clinic .door--wellness {
    flex: 0.001;
  }

  .landing.opening-wellness .door--wellness {
    flex: 50;
  }
  .landing.opening-wellness .door--clinic {
    flex: 0.001;
  }
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  .door__photo {
    animation: none;
  }
  .landing__logo-icon {
    transition: none;
    opacity: 1;
    transform: none;
  }
}