/* ============================================
   concept.css — pagine singolo concetto
   ============================================ */

/* ========== HERO ========== */
.concept-hero {
  position: relative;
  overflow: hidden;
  padding: 6rem 1.5rem 3rem;
  text-align: center;
}

.concept-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(
    135deg,
    #f0f4d8 0%,
    #F5EDE3 25%,
    #faeee9 50%,
    #e8f0c4 75%,
    #F5EDE3 100%
  );
  background-size: 400% 400%;
  animation: conceptGradShift 12s ease infinite;
}

@keyframes conceptGradShift {
  0%   { background-position: 0%   50%; }
  25%  { background-position: 50%  0%;  }
  50%  { background-position: 100% 50%; }
  75%  { background-position: 50%  100%;}
  100% { background-position: 0%   50%; }
}

.concept-hero .container {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.concept-hero__back {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-ink-soft);
  text-decoration: none;
  letter-spacing: 0.02em;
  margin-bottom: 1.5rem;
  transition: color 0.2s;
  align-self: flex-start;
}
.concept-hero__back:hover { color: var(--color-ink); }

.concept-hero__badge {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 0.3em 0.9em;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}

.concept-hero__title {
  font-family: 'Raleway', sans-serif;
  font-weight: 800;
  font-size: clamp(3rem, 8vw, 6rem);
  line-height: 1.0;
  letter-spacing: -0.03em;
  color: var(--color-ink);
  margin: 0 0 2.5rem;
}

.concept-hero__img-wrap {
  width: 40%;
  max-width: 350px;
  margin: -5rem auto 0;
}

.concept-hero__img {
  width: 100%;
  height: auto;
  display: block;
  mix-blend-mode: multiply;
  filter: brightness(1.05);
}

/* ========== CONTENT ========== */
.concept-content {
  background: var(--color-bg);
  background-image:
    radial-gradient(ellipse at 10% 20%, rgba(150,175,0,0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 90% 80%, rgba(226,56,84,0.04) 0%, transparent 50%);
  padding: 5rem 1.5rem;
}

.concept-content__inner {
  max-width: 65ch;
  margin: 0 auto;
}

.concept-content__inner p {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--color-ink-soft);
  margin: 0 0 1.5rem;
}
.concept-content__inner p:last-child { margin-bottom: 0; }

/* ========== CARD ANNUNCI — FLIP ========== */
.annunci-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  margin-top: 3rem;
  padding-bottom: 5rem;
}

/* Contenitore prospettico */
.annunci-card {
  perspective: 1000px;
  cursor: pointer;
}

/* Inner — ruota al flip; display:grid fa sì che l'altezza segua il lato più alto */
.annunci-card__inner {
  display: grid;
  grid-template-areas: "card";
  width: 100%;
  transform-style: preserve-3d;
  transition: transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Hover solo su dispositivi con puntatore reale (non touch) */
@media (hover: hover) {
  .annunci-card:hover .annunci-card__inner {
    transform: rotateY(180deg);
  }
}

.annunci-card.flipped .annunci-card__inner {
  transform: rotateY(180deg);
}

/* Fronte e retro — stacked nella stessa grid-area */
.annunci-card__front,
.annunci-card__back {
  grid-area: card;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: var(--radius-lg);
  padding: 2rem 1.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

/* Fronte */
.annunci-card__front {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
}

/* Icona sfondo sul fronte */
.annunci-card__front::before {
  content: '';
  position: absolute;
  top: 50%;
  right: 1.5rem;
  transform: translateY(-50%);
  width: 32%;
  aspect-ratio: 1;
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
  opacity: 0.12;
  pointer-events: none;
}

.annunci-card--oggetto   .annunci-card__front::before { background-image: url('../assets/icons/oggetto_icona.png'); }
.annunci-card--tempoutile .annunci-card__front::before { background-image: url('../assets/icons/tempoutile_icona.png'); }
.annunci-card--cerco     .annunci-card__front::before { background-image: url('../assets/icons/cerco_icona.png'); }
.annunci-card--avviso    .annunci-card__front::before { background-image: url('../assets/icons/avviso_icona.png'); }

/* Retro */
.annunci-card__back {
  background: var(--color-green-soft);
  border: 1px solid rgba(150,175,0,0.2);
  box-shadow: var(--shadow-card);
  transform: rotateY(180deg);
  justify-content: center;
}

.annunci-card__title {
  font-family: 'Raleway', sans-serif;
  font-weight: 800;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  color: var(--color-ink);
  margin: 0;
}

.annunci-card__title em {
  font-style: italic;
  color: var(--color-green);
}

.annunci-card__text {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-ink-soft);
  margin: 0;
}

.annunci-card__soon {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-ink-mute);
}

.annunci-card__link {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-green-dark);
  text-decoration: none;
  margin-top: 0.5rem;
  transition: color 0.2s;
}
.annunci-card__link:hover { color: var(--color-green); }

@media (max-width: 600px) {
  .annunci-cards { grid-template-columns: 1fr; }
}

/* ========== NAVIGAZIONE ========== */
.concept-nav {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: 3rem 1.5rem;
}

.concept-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 860px;
  margin: 0 auto;
}

.concept-nav__back {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-ink-soft);
  text-decoration: none;
  transition: color 0.2s;
}
.concept-nav__back:hover { color: var(--color-ink); }

.concept-nav__next {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-green);
  text-decoration: none;
  transition: color 0.2s;
}
.concept-nav__next:hover { color: var(--color-green-dark); }

/* Badge color variants */
.badge-concept--green  { background: rgba(150,175,0,0.12);  color: var(--color-green-dark); }
.badge-concept--amber  { background: rgba(217,119,6,0.12);  color: #92400E; }
.badge-concept--fuchsia{ background: rgba(226,56,84,0.10);  color: var(--color-fuchsia-dark); }
.badge-concept--teal   { background: rgba(5,150,105,0.12);  color: #065F46; }
.badge-concept--coral  { background: rgba(234,88,12,0.12);  color: #9A3412; }
.badge-concept--purple { background: rgba(124,58,237,0.12); color: #5B21B6; }

/* ========== RESPONSIVE ========== */
@media (max-width: 600px) {
  .concept-hero { padding: 5rem 1rem 2rem; }
  .concept-hero__img-wrap { width: 90%; }
  .concept-content { padding: 3rem 1rem; }
  .concept-nav { padding: 2rem 1rem; }
  .concept-nav__inner { flex-direction: column; align-items: flex-start; gap: 0.75rem; }
}