/* =====================================================
   HOME — VARIATION 2
   Extends the shared design system (.za-ing) with
   homepage-only sections (dual-choice cards, feature grid).
   Loaded on top of design-system.css via functions.php.
   ===================================================== */

/* Dual-choice cards */
.za-ing .choice-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
  margin-top: 3rem;
}
@media (min-width: 880px) {
  .za-ing .choice-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}

.za-ing .choice-card {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: clamp(2.5rem, 5vw, 4rem);
  border: 1px solid var(--color-line-strong);
  background: var(--color-paper);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: background 0.4s var(--ease), transform 0.4s var(--ease), border-color 0.4s var(--ease), box-shadow 0.5s var(--ease);
  /* Fixed height (not min-height): the description reveal on hover slides the
     bottom content up *inside* this box instead of growing the card, so the
     full-bleed image never resizes / re-crops ("zooms"). */
  height: clamp(560px, 68vw, 760px);
}
.za-ing .choice-card--has-image .choice-card__tag { margin-top: auto; }
.za-ing .choice-card:hover {
  background: var(--color-mist);
  transform: translateY(-4px);
  border-color: var(--color-ink);
  box-shadow: 0 24px 48px rgba(26,26,28,0.10);
}

/* Cinematic posters — image fills the card edge-to-edge.
   Fully desaturated at rest; full colour on hover.
   Bottom-anchored gradient stays soft until hover, so the
   image reads almost edge-to-edge at idle on both cards. */
.za-ing .choice-card--has-image .choice-card__image,
.za-ing .choice-card--has-image:hover .choice-card__image,
.za-ing .choice-card--accent.choice-card--has-image .choice-card__image,
.za-ing .choice-card--accent.choice-card--has-image:hover .choice-card__image {
  opacity: 1;
  filter: none;          /* full colour, no black & white */
  transform: none;       /* static — no zoom/shake on hover */
}
.za-ing .choice-card__image {
  transition: opacity 0.6s var(--ease);
}

/* Bottom-up gradient — soft at rest so most of the photo is
   visible; strengthens on hover when the description appears
   so the title + copy + CTA stay legible. */
.za-ing .choice-card--has-image .choice-card__overlay {
  opacity: 1;
  background: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.10) 55%, rgba(255,255,255,0.72) 100%);
  transition: background 0.5s var(--ease);
}
.za-ing .choice-card--has-image:hover .choice-card__overlay {
  background: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.30) 40%, rgba(255,255,255,0.96) 100%);
}
.za-ing .choice-card--accent.choice-card--has-image .choice-card__overlay {
  background: linear-gradient(180deg, rgba(26,26,28,0) 0%, rgba(26,26,28,0.15) 55%, rgba(26,26,28,0.78) 100%);
}
.za-ing .choice-card--accent.choice-card--has-image:hover .choice-card__overlay {
  background: linear-gradient(180deg, rgba(26,26,28,0) 0%, rgba(26,26,28,0.35) 40%, rgba(26,26,28,0.96) 100%);
}

/* Hide description by default — reveal on hover/focus-within.
   max-height + opacity for a smooth slide. */
.za-ing .choice-card--has-image p {
  max-height: 0;
  opacity: 0;
  margin: 0;
  overflow: hidden;
  flex-grow: 0;
  transition: max-height 0.55s var(--ease), opacity 0.45s var(--ease), margin 0.45s var(--ease);
}
.za-ing .choice-card--has-image:hover p,
.za-ing .choice-card--has-image:focus-within p {
  max-height: 320px;
  opacity: 1;
  margin: 0.25rem 0 0;
}
@media (prefers-reduced-motion: reduce) {
  .za-ing .choice-card--has-image p { transition: none; }
}

/* Corner ticks — gives a "framed slot" feeling without an explicit button */
.za-ing .choice-card__corner {
  position: absolute;
  top: 1rem; right: 1rem;
  width: 18px; height: 18px;
  border-top: 1px solid var(--color-line-strong);
  border-right: 1px solid var(--color-line-strong);
  z-index: 2;
  pointer-events: none;
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease);
}
.za-ing .choice-card:hover .choice-card__corner {
  border-color: var(--color-ink);
  transform: translate(2px, -2px);
}
.za-ing .choice-card--accent .choice-card__corner {
  border-color: rgba(255,255,255,0.35);
}
.za-ing .choice-card--accent:hover .choice-card__corner {
  border-color: var(--color-paper);
}

/* Idle pulse — gently breathing ring drawn over each card to telegraph
   "click me". Pauses on hover so the hover state can take over. */
.za-ing .choice-card__pulse {
  position: absolute;
  inset: 14px;
  z-index: 2;
  border: 1px solid currentColor;
  opacity: 0;
  pointer-events: none;
  animation: za-card-pulse 3.8s var(--ease) infinite;
  color: var(--color-ink);
}
.za-ing .choice-card--accent .choice-card__pulse { color: var(--color-paper); }
.za-ing .choice-card:hover .choice-card__pulse,
.za-ing .choice-card:focus-visible .choice-card__pulse { animation-play-state: paused; opacity: 0; }

@keyframes za-card-pulse {
  0%, 100% { opacity: 0; transform: scale(1); }
  35%      { opacity: 0.18; transform: scale(1.005); }
  70%      { opacity: 0;    transform: scale(1.015); }
}
@media (prefers-reduced-motion: reduce) {
  .za-ing .choice-card__pulse { animation: none; opacity: 0.08; }
}

/* Optional cover image — fades in on hover, soft b&w treatment */
.za-ing .choice-card__image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  opacity: 0;
  filter: grayscale(100%);
  transition: opacity 0.5s var(--ease), filter 0.6s var(--ease);
}
.za-ing .choice-card > * { position: relative; z-index: 1; }
.za-ing .choice-card__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.85) 100%);
  z-index: 1;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.5s var(--ease);
}
.za-ing .choice-card:hover .choice-card__overlay { opacity: 1; }
.za-ing .choice-card--accent .choice-card__overlay {
  background: linear-gradient(180deg, rgba(26,26,28,0) 0%, rgba(26,26,28,0.78) 100%);
}

.za-ing .choice-card--accent {
  background: var(--color-ink);
  color: var(--color-paper);
  border-color: var(--color-ink);
}
.za-ing .choice-card--accent:hover {
  background: var(--color-graphite);
  border-color: var(--color-graphite);
}
.za-ing .choice-card--accent h3 { color: var(--color-paper); }
.za-ing .choice-card--accent p  { color: rgba(255,255,255,0.72); }

.za-ing .choice-card__tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-stone);
  padding: 6px 10px;
  background: var(--color-mist);
  display: inline-block;
  align-self: flex-start;
}
.za-ing .choice-card--accent .choice-card__tag {
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.55);
}

.za-ing .choice-card h3 {
  font-size: clamp(2rem, 3.5vw, 3.25rem);
  font-variation-settings: "opsz" 96, "wght" 400;
  letter-spacing: -0.02em;
  line-height: 1.05;
  margin: 0.5rem 0 0;
}

.za-ing .choice-card p {
  font-size: 0.9375rem;
  line-height: 1.65;
  margin: 0;
  flex-grow: 1;
}

.za-ing .choice-card__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.625rem;
  margin-top: 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-ink);
  transition: gap 0.3s var(--ease), color 0.3s var(--ease);
}
.za-ing .choice-card--accent .choice-card__cta { color: var(--color-paper); }
.za-ing .choice-card:hover .choice-card__cta { gap: 1rem; }
.za-ing .choice-card__cta svg { transition: transform 0.3s var(--ease); }
.za-ing .choice-card:hover .choice-card__cta svg { transform: translateX(4px); }

/* About — optional team image + features grid (3 highlight cards) */
.za-ing .about-image {
  margin: 3rem 0 0;
  width: 100%;
  aspect-ratio: 16 / 7;
  overflow: hidden;
  background: var(--color-line);
}
.za-ing .about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(100%);
  transition: filter 0.6s var(--ease), transform 0.8s var(--ease);
}
.za-ing .about-image:hover img { filter: grayscale(0%); transform: scale(1.02); }

.za-ing .features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--color-line-strong);
  border: 1px solid var(--color-line-strong);
  margin-top: 3rem;
}
@media (min-width: 720px) { .za-ing .features-grid { grid-template-columns: repeat(3, 1fr); } }

.za-ing .feature-card {
  background: var(--color-paper);
  padding: 3rem 2.25rem 2.75rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: relative;
  transition: background 0.3s var(--ease), transform 0.3s var(--ease);
  min-height: 240px;
}
.za-ing .feature-card:hover { background: #FAFAFA; transform: translateY(-2px); }

.za-ing .feature-card__num {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  color: var(--color-stone);
  align-self: flex-start;
}

.za-ing .feature-card h3 {
  font-size: 1.4rem;
  font-variation-settings: "opsz" 48, "wght" 500;
  margin: 0;
}

.za-ing .feature-card p {
  font-size: 1rem;
  line-height: 1.65;
  margin: 0;
}

/* (CTA layout + inline-form styling for the design-system pages now lives
   in design-system.css under .cta-inner--with-form so it's identical on
   /home-2, /immobilien-beratung, and /ingenieurberatung.) */