/* =============================================================================
   CARTE DEL SITO — copia ESATTA delle regole delle card dei Percorsi del sito
   (rawaccademy/static/css/style.css, da ".flip-wrap" al retro). Insieme a
   sito/css/lastra.css, lastra-sentiero.css e percorsi-vivi.css (anch'essi copie)
   fanno si' che le card dell'Area siano identiche a quelle del sito.
   Se cambiano le card nel sito, ricopiare questi file: non modificarli qui.
   Le differenze dell'Area (prezzo, pulsanti, niente giro, divisione dello
   Studio) stanno in static/catalogo.css.
   ============================================================================= */
/* Contenitore prospettica — riceve anche .reveal per lo scroll */
.flip-wrap {
  perspective: 1000px;
  position: relative;
  transition: transform .4s cubic-bezier(.16, .84, .44, 1);
}

/* Card featured (Live): scala leggera + glow su hover.
   Scale 1.03 non rompe il grid (il bounding box resta nel cell). */
.flip-wrap--featured {
  transform: scale(1.03);
  z-index: 2;
}
.flip-wrap--featured:hover {
  transform: scale(1.05);
}
.flip-wrap--featured .flip-front {
  border-color: rgba(251, 191, 36, .38);
  box-shadow: var(--shadow),
              inset 0 1px 0 rgba(255, 255, 255, .08),
              0 0 0 1px rgba(251, 191, 36, .14);
}
.flip-wrap--featured:hover .flip-front {
  box-shadow: var(--shadow),
              inset 0 1px 0 rgba(255, 255, 255, .1),
              0 0 0 1px rgba(251, 191, 36, .28),
              0 0 40px rgba(251, 191, 36, .20);
}
.flip-wrap--featured .flip-title {
  font-weight: 700;
}

/* Badge LIVE / ON-DEMAND in alto a destra della card */
.flip-badge {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 10;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 11px 6px 9px;
  border-radius: 999px;
  font-family: 'SpaceGrotesk', system-ui, sans-serif;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  line-height: 1;
  pointer-events: none;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.flip-badge--live {
  background: rgba(220, 38, 38, .18);
  border: 1px solid rgba(248, 113, 113, .5);
  color: #fecaca;
}

.flip-badge--ondemand {
  background: rgba(15, 23, 42, .60);
  border: 1px solid var(--line);
  color: var(--soft);
}

.flip-badge__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #f87171;
  box-shadow: 0 0 10px rgba(248, 113, 113, .8);
  animation: liveDotPulse 1.6s ease-in-out infinite;
}

.flip-badge__icon {
  font-size: .68rem;
  line-height: 1;
  display: inline-block;
  color: var(--accent);
}

@keyframes liveDotPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: .5;  transform: scale(.82); }
}

@media (prefers-reduced-motion: reduce) {
  .flip-badge__dot { animation: none; }
  .flip-wrap--featured,
  .flip-wrap--featured:hover { transform: none; }
}

/* Mobile: scale featured ridotta a 1 (stack verticale, la gerarchia visiva
   sta nel badge LIVE animato) */
@media (max-width: 768px) {
  .flip-wrap--featured,
  .flip-wrap--featured:hover { transform: none; }
}

/* Carta cliccabile — NO overflow: hidden, NO transform propri */
.flip-card {
  position: relative;
  height: 420px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.flip-card:focus { outline: none; }
.flip-card:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
  border-radius: var(--r);
}

/* Pannello rotante */
.flip-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  -webkit-transform-style: preserve-3d;
  transition: transform .56s cubic-bezier(.4, 0, .2, 1);
  will-change: transform;
}

.flip-card.is-flipped .flip-inner {
  transform: rotateY(180deg);
}

/* Facce — overflow: hidden sicuro qui (non sul contenitore preserve-3d) */
.flip-front,
.flip-back {
  position: absolute;
  inset: 0;
  padding: 32px 28px;
  border-radius: var(--r);
  border: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

/* Animazione B — border breath */
.flip-front {
  justify-content: center;
  background: linear-gradient(160deg, rgba(255,255,255,.04), rgba(255,255,255,.01));
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.06);
  animation: cardBreath 7s ease-in-out infinite;
}

/* Stagger naturale per variante */
.flip-front--mentor       { animation-delay: 2.5s; }

@keyframes cardBreath {
  0%, 100% { box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.06); }
  50%      { box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.06),
                         0 0 24px rgba(34, 211, 238, .07); }
}

.flip-back {
  transform: rotateY(180deg);
  background: linear-gradient(160deg, rgba(34,211,238,.06), rgba(255,255,255,.01));
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.08);
  justify-content: flex-start;
}

/* Sfondo radiale fronte Bootcamp Studio — identita EMERALD (accessibile, vivo, opportunita) */
.flip-front--boot {
  background:
    linear-gradient(150deg, rgba(2, 6, 23, .84) 0%, rgba(2, 6, 23, .65) 100%),
    url('../images/bootcamp-bg.webp') center / cover no-repeat;
  border-color: rgba(16, 185, 129, .26);
}

.flip-front--boot::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 55% at 30% 15%, rgba(16, 185, 129, .15), transparent 60%);
  pointer-events: none;
}

/* Hover STUDIO: glow emerald sottile (meno intenso del glow oro della LIVE) */
.flip-wrap:not(.flip-wrap--featured):hover .flip-front--boot {
  box-shadow: var(--shadow),
              inset 0 1px 0 rgba(255, 255, 255, .06),
              0 0 0 1px rgba(16, 185, 129, .22),
              0 0 28px rgba(16, 185, 129, .14);
}

/* Badge ON-DEMAND: bordo emerald sottile + triangolo emerald */
.flip-badge--ondemand {
  border-color: rgba(16, 185, 129, .35);
}
.flip-badge--ondemand .flip-badge__icon {
  color: #10b981;
}

/* Sfondo radiale fronte Bootcamp Live — identita ORO/AMBRA (premium, esclusivo) */
.flip-front--mentor {
  background:
    linear-gradient(130deg, rgba(2, 6, 23, .86) 0%, rgba(2, 6, 23, .68) 100%),
    url('../images/mentor-bg.webp') center / cover no-repeat;
  border-color: rgba(251, 191, 36, .28);
}

.flip-front--mentor::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 55% at 70% 15%, rgba(251, 191, 36, .18), transparent 60%);
  pointer-events: none;
}

/* Tipografia interna carte */
.flip-kicker { margin-bottom: 10px; }

.flip-title {
  font-family: 'Montserrat', system-ui, sans-serif;
  font-size: clamp(1.9rem, 3.2vw, 2.5rem);
  font-weight: 700;
  letter-spacing: .04em;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.05;
}

.flip-sub {
  font-size: .92rem;
  color: var(--soft);
  line-height: 1.65;
  margin-bottom: 20px;
}

.flip-hint {
  font-size: .76rem;
  color: var(--accent);
  font-weight: 500;
  letter-spacing: .06em;
  font-family: 'SpaceGrotesk', system-ui, sans-serif;
  opacity: .75;
  transition: opacity .2s ease;
}

.flip-card:hover .flip-hint { opacity: 1; }

.flip-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 14px 0 16px;
  padding-left: 16px;
  list-style: disc;
}

.flip-list li {
  font-size: .9rem;
  color: var(--soft);
  line-height: 1.5;
}

.flip-note {
  font-size: .82rem;
  color: var(--muted);
  padding-top: 14px;
  border-top: 1px solid var(--line);
  margin-top: auto;
}

.flip-note--placeholder {
  line-height: 1.6;
}

.flip-closing {
  font-size: .82rem;
  color: var(--muted);
  font-style: italic;
  line-height: 1.55;
  margin-top: 4px;
}

.flip-link {
  color: var(--accent);
  font-weight: 500;
}
.flip-link:hover { color: var(--accent2); }

/* Link secondario sul retro ("Programma completo"): grigio e sottolineato, su una riga
   sua, cosi' non si confonde con l'azione colorata (Acquista / Iscriviti) */
.flip-info {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-weight: 400;
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-color: rgba(148, 163, 184, .45);
}
.flip-info:hover { color: var(--soft); text-decoration-color: currentColor; }

/* Retro card — tinta coerente con l'identita del fronte
   (gradient sottile + bordo + link + bordo del flip-note) */

/* Retro BOOTCAMP LIVE — oro/ambra */
.flip-back--mentor {
  background: linear-gradient(160deg, rgba(251, 191, 36, .07), rgba(255, 255, 255, .015));
  border-color: rgba(251, 191, 36, .20);
}
.flip-back--mentor .flip-note {
  border-top-color: rgba(251, 191, 36, .18);
}
.flip-back--mentor .flip-link {
  color: #fbbf24;
}
.flip-back--mentor .flip-link:hover {
  color: #fcd34d;
}

/* Retro BOOTCAMP STUDIO — emerald */
.flip-back--boot {
  background: linear-gradient(160deg, rgba(16, 185, 129, .06), rgba(255, 255, 255, .015));
  border-color: rgba(16, 185, 129, .20);
}
.flip-back--boot .flip-note {
  border-top-color: rgba(16, 185, 129, .18);
}
.flip-back--boot .flip-link {
  color: #10b981;
}
.flip-back--boot .flip-link:hover {
  color: #34d399;
}

@media (prefers-reduced-motion: reduce) {
  .flip-inner { transition: none; }
}