/* ============================================================
   layout.css — Layout principale, scaffali, statistiche
   ============================================================ */

/* ── Main content ──────────────────────────────────────────── */
/* Scorre internamente — non il body */
.main-content {
  width: 100%; overflow-y: auto; flex: 1 1 0; min-height: 0;
  background-image: url('../assets/img/bg-light.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
[data-theme="night"] .main-content {
  background-image: url('../assets/img/bg-dark.jpg');
}
.main-content > *:not(.scroll-top-btn) { max-width: 1400px; margin-left: auto; margin-right: auto; padding: 0 1.5rem; }

.content-header     { margin-bottom: 1rem; }
.content-header-top { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 1.5rem; margin-bottom: 2.5rem; }
.header-left        { display: flex; flex-direction: column; align-items: center; width: 100%; }

/* Header logo sezione (immagine collezione / lista desideri) */
.section-header {
  margin-bottom: 1.5rem;
  display: flex; justify-content: center; width: 100%;
}
.header-logo {
  height: 100px; width: auto; display: block;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.05));
}

/* ── Scaffali — pills ──────────────────────────────────────── */
.shelf-pills       { display: flex; justify-content: center; width: 100%; }
.shelf-pills-track { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; }

.shelf-pill {
  padding: .35rem .9rem;
  background: var(--bg-input); border: 1px solid var(--border);
  border-radius: 99px; color: var(--text-muted);
  font-size: .85rem; font-weight: 600;
  cursor: pointer; font-family: var(--font-body); white-space: nowrap;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
}
.shelf-pill:hover        { border-color: var(--moss); color: var(--text); }
.shelf-pill.active       { background: var(--forest); color: var(--cream); border-color: var(--forest); }
.shelf-pill--add         { border-style: dashed; }
.shelf-pill--add:hover   { border-color: var(--moss); color: var(--moss); background: transparent; }

/* Azioni pill (non più usati, mantenuti per compatibilità) */
.shelf-pill-edit,
.shelf-pill-delete {
  background: none; border: none; cursor: pointer;
  font-size: .8rem; color: var(--text-muted); padding: .2rem;
  border-radius: var(--radius-sm); transition: color var(--transition);
}
.shelf-pill-edit:hover   { color: var(--accent); }
.shelf-pill-delete:hover { color: var(--red); }

/* ── Scaffali — carosello ──────────────────────────────────── */
.shelf-name-bar { text-align: center; margin-bottom: 1.5rem; }

/* Layout griglia libri con frecce laterali sticky */
.books-layout { display: flex; align-items: flex-start; gap: 12px; }

.carousel-arrow {
  width: 36px; height: 36px; flex-shrink: 0;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 50%; color: var(--text); font-size: 1.2rem;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  transition: background var(--transition), border-color var(--transition);
}
.carousel-arrow:hover:not(:disabled) { background: var(--bg-input); border-color: var(--moss); }
.carousel-arrow:disabled             { opacity: .3; cursor: not-allowed; }

/* Frecce laterali — sticky al centro viewport durante lo scroll */
.carousel-arrow--side {
  position: sticky;
  top: calc(50vh - var(--navbar-h));
  margin-top: -54px;
  align-self: flex-start;
}

/* Nome scaffale corrente (cliccabile per rinominare) */
.shelf-current-name            { font-weight: 700; font-size: 1rem; color: var(--text-muted); }
.shelf-current-name.is-shelf  { cursor: pointer; }
.shelf-current-name.is-shelf:hover { text-decoration: underline; }

/* Pulsante matita modifica scaffale (legacy) */
.shelf-edit-btn {
  background: none; border: none; cursor: pointer;
  font-size: .9rem; padding: .2rem .4rem; color: var(--text-muted);
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}
.shelf-edit-btn:hover { color: var(--accent); background: var(--accent-soft); }

/* Form inline modifica scaffale */
.shelf-inline-edit {
  display: flex; align-items: center; gap: 6px;
  justify-content: center; margin-bottom: 2.5rem;
}
.shelf-inline-input {
  padding: 4px 10px; font-size: .95rem; font-weight: 600;
  border: 1.5px solid var(--moss); border-radius: var(--radius-sm);
  font-family: var(--font-body); color: var(--text);
  background: var(--bg-input); width: 180px;
}
.shelf-inline-input:focus { outline: none; border-color: var(--forest); }
.shelf-inline-save,
.shelf-inline-cancel,
.shelf-inline-delete {
  background: none; border: 1px solid var(--border); border-radius: var(--radius-sm);
  cursor: pointer; font-size: .85rem; padding: 4px 8px;
  font-family: var(--font-body); transition: all var(--transition);
}
.shelf-inline-save:hover   { border-color: var(--moss);  color: var(--moss); }
.shelf-inline-cancel:hover { border-color: var(--earth); color: var(--earth); }
.shelf-inline-delete       { border-color: var(--red); color: var(--red); }
.shelf-inline-delete:hover { background: rgba(166,68,68,.08); }

/* ── Statistiche ───────────────────────────────────────────── */
.stats-row            { display: flex; justify-content: center; margin-bottom: 2.5rem; }
.stats-row .stats-bar { flex-wrap: nowrap; }
.stats-bar            { display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; }

/* Card statistica — cliccabile per filtrare per stato */
.stat-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: .8rem 1.2rem;
  text-align: center; min-width: 80px;
  cursor: pointer; user-select: none;
  transition: background var(--transition), box-shadow .15s ease, transform .1s ease;
}
.stat-card:hover   { background: var(--accent-soft); }
.stat-card--single { min-width: 200px; }

.stat-number { font-family: var(--font-display); font-size: 1.8rem; font-weight: 700; color: var(--earth); line-height: 1; }
.stat-label  { font-size: .72rem; color: var(--text-muted); margin-top: .2rem; text-transform: uppercase; }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 768px) {
  .stats-row { overflow-x: visible; }
  .stats-bar { flex-wrap: nowrap; gap: 8px; }
  .stat-card {
    min-width: 0;
    flex: 1;
    padding: .6rem .4rem;
  }
  .stat-number { font-size: 1.4rem; }
  .stat-label  { font-size: .62rem; }

  .books-layout { gap: 0; }
  .main-content > *:not(.scroll-top-btn) { padding: 0 .75rem; }
}

/* ── Menu hamburger ────────────────────────────────────── */
.hamburger-wrap {
  position: fixed; bottom: 2rem;
  left: max(0.5rem, calc(50% - 700px - 1.5rem));
  z-index: 151;
}

@media (max-width: 768px) {
  .hamburger-wrap {
    bottom: calc(64px + .75rem);
  }
}

.hamburger-btn {
  width: 36px; height: 36px;
  background: var(--forest); border: none; border-radius: 50%;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 4px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(105,114,84,.3);
  transition: background var(--transition);
}
.hamburger-btn:hover { background: var(--moss); }
.hamburger-btn span {
  display: block; width: 14px; height: 2px;
  background: var(--cream); border-radius: 99px;
}

.hamburger-menu {
  position: fixed; bottom: calc(4rem + 36px); left: max(0.5rem, calc(50% - 700px - 1.5rem));
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); box-shadow: var(--shadow);
  min-width: 120px; overflow: hidden;
  animation: fadeIn .15s ease;
}

@media (max-width: 768px) {
  .hamburger-menu {
    bottom: calc(64px + .75rem + 36px + 1rem);
  }
}

.hamburger-item {
  display: block; width: 100%; padding: .35rem .6rem;
  background: none; border: none; text-align: left;
  font-family: var(--font-body); font-size: .78rem;
  color: var(--text); cursor: pointer; white-space: nowrap;
  transition: background var(--transition);
}
.hamburger-item:hover { background: var(--accent-soft); }

/* ── Pulsante "Torna su" ───────────────────────────────────── */
.scroll-top-btn {
  position: fixed; bottom: 2rem;
  right: max(1.5rem, calc(50% - 700px + 1.5rem));
  width: 36px !important; height: 36px !important;
  min-width: 36px; min-height: 36px; max-width: 36px; max-height: 36px;
  overflow: hidden;
  background: var(--forest); color: var(--cream);
  border: none; border-radius: 50%;
  font-size: 1.2rem; line-height: 0.5; padding: 0;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px rgba(105,114,84,.3);
  opacity: 0; pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
  z-index: 150;
  flex-shrink: 0;
}
.scroll-top-btn.visible { opacity: 1; pointer-events: auto; }
.scroll-top-btn:hover   { background: var(--moss); transform: translateY(-2px); }

.exit-drag-btn {
  position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%);
  background: var(--forest); color: var(--cream);
  border: none; border-radius: 99px;
  padding: .6rem 1.4rem; font-family: var(--font-body);
  font-size: .9rem; font-weight: 600; cursor: pointer;
  box-shadow: 0 4px 12px rgba(105,114,84,.3);
  z-index: 152;
  transition: background var(--transition);
}
.exit-drag-btn:hover { background: var(--moss); }

@media (max-width: 768px) {
  /* Dimensione immagine header*/
  .header-logo { height: 60px; }
  .content-header-top { margin-bottom: 1rem; gap: .75rem; }
  .section-header { margin-bottom: .75rem; }

  /* Freccia per tornare all'header*/
  .scroll-top-btn {
    bottom: calc(64px + .75rem);
  }
  .exit-drag-btn {
    bottom: calc(64px + .75rem);
  }
  /* Spazio ultima riga dal fondo*/
  .main-content { padding-bottom: calc(64px + 1.5rem); }
}
/* ── Pull-to-refresh (mobile) ──────────────────────────────── */
.ptr-indicator {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translate(-50%, -50px);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--sand);
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.18);
  z-index: 300;
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}
.ptr-indicator.visible { opacity: 1; }
.ptr-indicator svg {
  width: 20px;
  height: 20px;
  stroke: var(--moss);
  stroke-width: 2;
  fill: none;
  transition: stroke var(--transition), transform var(--transition);
}
.ptr-indicator.ptr-ready svg {
  stroke: var(--forest);
  transform: rotate(180deg);
}
.ptr-indicator.spinning svg {
  animation: ptr-spin 0.8s linear infinite;
  stroke: var(--forest);
}
@keyframes ptr-spin {
  to { transform: rotate(360deg); }
}