/* Benvenuto al primo accesso e "Il tuo corso" (public/js/onboarding.js).
   Una scheda di vetro sopra luci colorate che prendono il colore del corso scelto: la cartella
   grande cambia con un rimbalzo, un anello di luce le gira intorno, i passi scorrono di lato. */

.onb-overlay {
  --onb-c: #5e8bff;
  position: fixed;
  inset: 0;
  z-index: 9600;
  display: grid;
  /* una cella alta quanto lo schermo: così la scheda non lo supera e scorre dentro */
  grid-template: minmax(0, 1fr) / minmax(0, 1fr);
  place-items: center;
  padding: max(16px, env(safe-area-inset-top)) 16px max(16px, env(safe-area-inset-bottom));
  overflow: hidden;
  overflow: clip; /* clip: nemmeno uno scroll da codice può spostare la scheda */
  background: rgba(8, 10, 24, 0.5);
  -webkit-backdrop-filter: blur(10px) saturate(1.2);
  backdrop-filter: blur(10px) saturate(1.2);
  animation: onb-fade 0.35s ease-out;
}

.onb-overlay.closing {
  opacity: 0;
  transition: opacity 0.25s;
}

/* --- luci di sfondo ------------------------------------------------------------------------ */

.onb-aurora {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.onb-aurora i {
  position: absolute;
  width: 46vmax;
  height: 46vmax;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.55;
  transition: background-color 0.9s;
  animation: onb-drift 16s ease-in-out infinite alternate;
}

.onb-aurora i:nth-child(1) {
  left: -12vmax;
  top: -14vmax;
  background-color: var(--onb-c);
}

.onb-aurora i:nth-child(2) {
  right: -14vmax;
  bottom: -16vmax;
  background-color: color-mix(in srgb, var(--onb-c) 55%, #ff5fa2);
  animation-duration: 19s;
  animation-delay: -5s;
}

.onb-aurora i:nth-child(3) {
  left: 32%;
  top: 52%;
  width: 30vmax;
  height: 30vmax;
  opacity: 0.35;
  background-color: color-mix(in srgb, var(--onb-c) 45%, #ffd36b);
  animation-duration: 22s;
  animation-delay: -9s;
}

/* --- scheda ---------------------------------------------------------------------------------- */

.onb-card {
  position: relative;
  width: min(580px, 100%);
  max-height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  overflow: clip;
  border: 0.5px solid rgba(255, 255, 255, 0.55);
  border-radius: 28px;
  background: var(--menu-bg);
  -webkit-backdrop-filter: blur(40px) saturate(1.8);
  backdrop-filter: blur(40px) saturate(1.8);
  box-shadow: 0 40px 100px -30px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 255, 255, 0.55);
  animation: onb-pop 0.55s cubic-bezier(0.2, 0.9, 0.3, 1.2);
}

:root[data-theme='dark'] .onb-card {
  border-color: rgba(255, 255, 255, 0.14);
  box-shadow: 0 40px 100px -30px rgba(0, 0, 0, 0.8), inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

/* Un riflesso attraversa il vetro quando la scheda compare */
.onb-card::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, 0.28) 45%, transparent 60%);
  transform: translateX(-110%);
  animation: onb-shine 1.6s 0.35s ease-out both;
}

.onb-close {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--hover);
  color: var(--text-2);
  cursor: pointer;
}

.onb-close .svg {
  width: 14px;
  height: 14px;
}

.onb-stage {
  flex: 1;
  min-height: 0;
  overflow-x: hidden;
  overflow-y: auto;
  scrollbar-width: thin;
}

.onb-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 26px 26px 10px;
  text-align: center;
}

.onb-step.enter-right {
  animation: onb-in-right 0.45s cubic-bezier(0.2, 0.9, 0.3, 1) both;
}

.onb-step.enter-left {
  animation: onb-in-left 0.45s cubic-bezier(0.2, 0.9, 0.3, 1) both;
}

.onb-step h1 {
  margin: 0;
  font-size: 23px;
  letter-spacing: -0.015em;
}

.onb-lead {
  max-width: 440px;
  margin: 0;
  color: var(--text-2);
  font-size: 14px;
  line-height: 1.45;
}

.onb-body {
  width: 100%;
  margin-top: 4px;
  text-align: left;
}

/* --- cartella grande del corso ------------------------------------------------------------- */

.onb-hero-course {
  --c: #8e9bb0;
  position: relative;
  width: 150px;
  height: 128px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
}

/* alone colorato dietro la cartella */
.onb-hero-course::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 44%;
  width: 92px;
  height: 92px;
  margin: -46px 0 0 -46px;
  border-radius: 50%;
  background-color: var(--c);
  filter: blur(26px);
  opacity: 0.5;
  transition: background-color 0.6s;
}

/* anello di luce che gira */
.onb-ring {
  position: absolute;
  left: 50%;
  top: 44%;
  width: 116px;
  height: 116px;
  margin: -58px 0 0 -58px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent 0 18%, var(--c) 38%, color-mix(in srgb, var(--c) 35%, #fff) 50%, transparent 66% 100%);
  -webkit-mask: radial-gradient(circle, transparent 54px, #000 55px, #000 57.5px, transparent 58.5px);
  mask: radial-gradient(circle, transparent 54px, #000 55px, #000 57.5px, transparent 58.5px);
  animation: onb-spin 3.6s linear infinite;
}

.onb-hero-course.saved .onb-ring {
  animation-duration: 0.9s;
}

.onb-folder {
  position: relative;
  width: 86px;
  height: 70px;
  margin-top: -16px;
}

.onb-folder-icon {
  display: block;
  width: 100%;
  height: 100%;
  filter: drop-shadow(0 12px 18px rgba(0, 0, 0, 0.25));
}

.onb-folder.pop {
  animation: onb-bounce 0.6s cubic-bezier(0.2, 0.9, 0.3, 1.45);
}

.onb-check {
  position: absolute;
  right: -10px;
  bottom: -4px;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border: 2px solid var(--menu-solid, #fff);
  border-radius: 50%;
  background: #30d158;
  color: #fff;
  box-shadow: 0 6px 14px -4px rgba(48, 209, 88, 0.7);
  animation: onb-bounce 0.5s cubic-bezier(0.2, 0.9, 0.3, 1.6) both;
}

.onb-check .svg {
  width: 16px;
  height: 16px;
}

.onb-chip {
  position: absolute;
  left: 50%;
  bottom: 0;
  max-width: min(420px, 80vw);
  overflow: hidden;
  padding: 4px 12px;
  border: 0.5px solid var(--border);
  border-radius: 999px;
  background: var(--hover);
  color: var(--text-2);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  text-overflow: ellipsis;
  transform: translateX(-50%);
  transition: background-color 0.3s, border-color 0.3s, color 0.3s;
}

.onb-chip.ready {
  border-color: color-mix(in srgb, var(--c) 50%, transparent);
  background: color-mix(in srgb, var(--c) 18%, transparent);
  color: var(--text);
}

/* --- selettore di corso, anno e canale ------------------------------------------------------- */

.onb-section {
  padding: 10px 0 4px;
}

.onb-section.appear {
  animation: onb-rise 0.45s cubic-bezier(0.2, 0.9, 0.3, 1.15) both;
}

.onb-label {
  margin: 0 2px 8px;
  color: var(--text-2);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.onb-group + .onb-group {
  margin-top: 10px;
}

.onb-group > small {
  display: block;
  margin: 0 2px 6px;
  color: var(--text-3);
  font-size: 11.5px;
}

.onb-courses {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 8px;
}

.onb-course {
  --c: #4aa6f2;
  min-width: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--hover);
  color: var(--text);
  font: inherit;
  text-align: left;
  cursor: pointer;
  transition: transform 0.15s, background-color 0.2s, border-color 0.2s, box-shadow 0.25s;
}

.onb-course:hover {
  transform: translateY(-1px);
  background: color-mix(in srgb, var(--c) 10%, var(--hover));
}

.onb-course:active {
  transform: scale(0.97);
}

.onb-course.on {
  border-color: var(--c);
  background: color-mix(in srgb, var(--c) 16%, transparent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--c) 24%, transparent), 0 10px 22px -12px var(--c);
}

.onb-course-icon {
  width: 34px;
  height: 28px;
  flex-shrink: 0;
  transition: transform 0.35s cubic-bezier(0.2, 0.9, 0.3, 1.5);
}

.onb-course.on .onb-course-icon {
  transform: scale(1.12) rotate(-5deg);
}

.onb-course > span:not(.svg) {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.onb-course strong {
  font-size: 13.5px;
}

.onb-course small {
  overflow: hidden;
  color: var(--text-2);
  font-size: 11px;
  white-space: nowrap;
  text-overflow: ellipsis;
}

.onb-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.onb-pill {
  height: 34px;
  padding: 0 16px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--hover);
  color: var(--text);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.15s, background-color 0.2s, border-color 0.2s, box-shadow 0.25s;
}

.onb-pill:active {
  transform: scale(0.95);
}

.onb-pill.on {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 16px -6px var(--accent);
}

.onb-note {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  color: var(--text-2);
  font-size: 13px;
}

.onb-note .svg {
  width: 16px;
  height: 16px;
  color: #30d158;
}

/* --- secondo passo: il tour ----------------------------------------------------------------- */

.onb-done {
  display: flex;
  align-items: center;
  gap: 8px;
  max-width: 100%;
  padding: 7px 12px;
  border-radius: 12px;
  background: rgba(48, 209, 88, 0.14);
  font-size: 13px;
  text-align: left;
  animation: onb-rise 0.45s 0.15s cubic-bezier(0.2, 0.9, 0.3, 1.15) both;
}

.onb-done > .svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  padding: 3px;
  border-radius: 50%;
  background: #30d158;
  color: #fff;
}

/* --- piede: pallini dei passi e pulsanti -------------------------------------------------------- */

.onb-foot {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
  padding: 12px 22px 18px;
  border-top: 0.5px solid var(--border);
}

.onb-dots {
  display: flex;
  gap: 6px;
}

.onb-dots i {
  width: 7px;
  height: 7px;
  border-radius: 4px;
  background: var(--text-3);
  opacity: 0.45;
  transition: width 0.35s, opacity 0.35s, background-color 0.35s;
}

.onb-dots i.on {
  width: 22px;
  background: var(--accent);
  opacity: 1;
}

.onb-actions {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.onb-actions .btn {
  height: 36px;
  padding: 0 18px;
}

.onb-next {
  position: relative;
  overflow: hidden;
}

/* lampo di luce sul pulsante quando si può andare avanti */
.onb-next:not(:disabled)::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 35%, rgba(255, 255, 255, 0.45) 50%, transparent 65%);
  transform: translateX(-120%);
  animation: onb-shine 2.8s 0.4s ease-in-out infinite;
}

.onb-next.busy {
  opacity: 0.8;
  pointer-events: none;
}

.onb-skip {
  border-color: transparent;
  background: transparent;
  box-shadow: none;
  color: var(--text-2);
}

/* --- telefono ----------------------------------------------------------------------------------- */

@media (max-width: 520px) {
  .onb-card {
    border-radius: 24px;
  }

  .onb-step {
    padding: 22px 16px 8px;
  }

  .onb-step h1 {
    font-size: 21px;
  }

  .onb-hero-course {
    height: 116px;
  }

  .onb-courses {
    grid-template-columns: 1fr 1fr;
  }

  .onb-course small {
    display: none;
  }

  .onb-course {
    gap: 7px;
    padding: 8px 7px;
  }

  .onb-course strong {
    font-size: 12.5px;
    letter-spacing: -0.015em;
    overflow-wrap: anywhere; /* solo se proprio non entra */
  }

  .onb-course-icon {
    width: 28px;
    height: 23px;
  }

  .onb-foot {
    padding: 10px 16px 14px;
  }

  .onb-actions .btn {
    padding: 0 14px;
  }
}

@media (max-width: 360px) {
  .onb-courses {
    grid-template-columns: 1fr;
  }
}

/* --- animazioni ------------------------------------------------------------------------------- */

@keyframes onb-fade {
  from {
    opacity: 0;
  }
}

@keyframes onb-pop {
  from {
    opacity: 0;
    transform: translateY(24px) scale(0.94);
  }
}

@keyframes onb-shine {
  to {
    transform: translateX(120%);
  }
}

@keyframes onb-spin {
  to {
    transform: rotate(1turn);
  }
}

@keyframes onb-bounce {
  0% {
    transform: scale(0.6);
  }
  60% {
    transform: scale(1.12);
  }
  100% {
    transform: none;
  }
}

@keyframes onb-rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
}

@keyframes onb-in-right {
  from {
    opacity: 0;
    transform: translateX(40px);
  }
}

@keyframes onb-in-left {
  from {
    opacity: 0;
    transform: translateX(-40px);
  }
}

@keyframes onb-drift {
  to {
    transform: translate(6vmax, 4vmax) scale(1.15);
  }
}

@media (prefers-reduced-motion: reduce) {
  .onb-overlay *,
  .onb-overlay *::before,
  .onb-overlay *::after,
  .onb-card {
    animation: none !important;
  }
}