/* ============================================================
   TACCUINI NERI — Stylesheet
   Horror psicologico | Palette scura | Glitch | Disagio
   Ispirazione: Yume Nikki / 2kki / OMORI
   ============================================================ */

/* ── RESET & VARIABILI ────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-void:        #0a0a0a;
  --bg-deep:        #111111;
  --bg-surface:     #1a1a1a;
  --bg-raised:      #222222;
  --bg-hover:       #2a2a2a;

  --text-primary:   #c8c0b8;
  --text-dim:       #6b6460;
  --text-ghost:     #3d3835;

  --accent-blood:   #8b1a1a;
  --accent-rot:     #4a3728;
  --accent-ash:     #5c5550;
  --accent-glitch:  #b03060;
  --accent-pale:    #a89090;

  --border-dim:     #2e2a27;
  --border-glow:    #3d2020;

  --font-mono:      'Courier New', Courier, monospace;
  --font-system:    'Segoe UI', 'Helvetica Neue', Arial, sans-serif;

  --transition:     200ms cubic-bezier(.4,0,.2,1);
  --glitch-dur:     3s;
}

html, body {
  height: 100%;
  background: var(--bg-void);
  color: var(--text-primary);
  font-family: var(--font-system);
  font-size: 15px;
  line-height: 1.6;
  overflow: hidden;               /* controlled scrolling per-section */
  -webkit-font-smoothing: antialiased;
}

/* ── SCANLINE OVERLAY (atmospheric) ───────────────────────── */
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent 0px,
    transparent 2px,
    rgba(0,0,0,.15) 2px,
    rgba(0,0,0,.15) 4px
  );
}

/* ── NOISE TEXTURE OVERLAY ───────────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
}

/* ============================================================
   LAYOUT PRINCIPALE
   ============================================================ */

/* ── SIDEBAR (lista taccuini) ─────────────────────────────── */
.sidebar {
  position: fixed;
  left: 0; top: 0; bottom: 0;
  width: 240px;
  background: var(--bg-deep);
  border-right: 1px solid var(--border-dim);
  display: flex;
  flex-direction: column;
  z-index: 100;
  transition: transform var(--transition);
}

.sidebar-header {
  padding: 28px 20px 16px;
  border-bottom: 1px solid var(--border-dim);
}

.sidebar-header h1 {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 400;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent-pale);
  text-shadow: 0 0 12px rgba(139,26,26,.4);
}

.sidebar-header .subtitle {
  font-size: 10px;
  color: var(--text-ghost);
  margin-top: 4px;
  font-family: var(--font-mono);
  letter-spacing: .08em;
}

/* notebook list */
.notebook-list {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-rot) transparent;
}
.notebook-list::-webkit-scrollbar { width: 4px; }
.notebook-list::-webkit-scrollbar-track { background: transparent; }
.notebook-list::-webkit-scrollbar-thumb { background: var(--accent-rot); border-radius: 2px; }

.notebook-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  cursor: pointer;
  border-left: 2px solid transparent;
  transition: background var(--transition), border-color var(--transition);
  position: relative;
}
.notebook-item:hover {
  background: var(--bg-surface);
}
.notebook-item.active {
  background: var(--bg-surface);
  border-left-color: var(--accent-blood);
}
.notebook-item .nb-icon {
  font-size: 15px;
  opacity: .7;
  flex-shrink: 0;
}
.notebook-item .nb-name {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}
.notebook-item .nb-count {
  font-size: 10px;
  color: var(--text-ghost);
  font-family: var(--font-mono);
}

/* delete btn on notebook */
.notebook-item .nb-delete {
  display: none;
  background: none;
  border: none;
  color: var(--accent-blood);
  cursor: pointer;
  font-size: 14px;
  padding: 0 2px;
  opacity: .6;
  transition: opacity var(--transition);
  flex-shrink: 0;
}
.notebook-item:hover .nb-delete { display: block; }
.notebook-item .nb-delete:hover { opacity: 1; }

/* intestazioni di stanza e di fila nella lista dei taccuini */
.nb-group {
  font-family: var(--font-mono);
  text-transform: uppercase;
  user-select: none;
}
.nb-group-room {
  margin-top: 14px;
  padding: 6px 18px;
  font-size: 11px;
  letter-spacing: .16em;
  color: var(--accent-pale);
  border-top: 1px solid var(--border-dim);
  border-bottom: 1px solid var(--border-dim);
  background: var(--bg-deep);
}
.nb-group-room:first-child { margin-top: 0; border-top: none; }
.nb-group-shelf {
  padding: 8px 18px 2px 22px;
  font-size: 10px;
  letter-spacing: .12em;
  color: var(--text-dim);
}

/* ricerca taccuini */
.sidebar-search {
  padding: 10px 18px;
  border-top: 1px solid var(--border-dim);
}
.sidebar-search input {
  width: 100%;
  padding: 7px 10px;
  background: var(--bg-deep);
  border: 1px solid var(--border-dim);
  border-radius: 2px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .08em;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.sidebar-search input::placeholder { color: var(--text-dim); }
.sidebar-search input:focus {
  border-color: var(--accent-blood);
  box-shadow: 0 0 8px rgba(139,26,26,.25);
}
.nb-empty {
  padding: 16px 18px;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--text-dim);
  text-align: center;
}
@media (max-width: 900px) {
  .sidebar-search input { font-size: 16px; }  /* evita lo zoom automatico su iOS */
}

/* sidebar footer actions */
.sidebar-footer {
  padding: 12px 18px;
  border-top: 1px solid var(--border-dim);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

/* ── BOTONI GENERICI ──────────────────────────────────────── */
.btn {
  display: block;
  width: 100%;
  padding: 8px 12px;
  background: var(--bg-raised);
  border: 1px solid var(--border-dim);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: 2px;
  transition: background var(--transition), border-color var(--transition), box-shadow var(--transition);
  text-align: center;
}
.btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-glow);
  box-shadow: 0 0 8px rgba(139,26,26,.2);
}
.btn.btn-accent {
  border-color: var(--accent-blood);
  color: var(--accent-pale);
}
.btn.btn-accent:hover {
  background: rgba(139,26,26,.12);
  box-shadow: 0 0 14px rgba(139,26,26,.35);
}
.btn.btn-sm {
  padding: 5px 10px;
  font-size: 10px;
}

/* ── MAIN CONTENT ─────────────────────────────────────────── */
.main {
  margin-left: 240px;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

/* top-bar */
.topbar {
  height: 44px;
  min-height: 44px;
  background: var(--bg-deep);
  border-bottom: 1px solid var(--border-dim);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}
.topbar .topbar-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* Hamburger menu button (solo mobile) */
.btn-hamburger {
  display: none;
  background: none;
  border: 1px solid var(--border-dim);
  color: var(--text-dim);
  font-size: 18px;
  width: 36px;
  height: 36px;
  border-radius: 2px;
  cursor: pointer;
  transition: all var(--transition);
  padding: 0;
  line-height: 1;
}
.btn-hamburger:hover {
  color: var(--accent-pale);
  border-color: var(--border-glow);
  background: var(--bg-raised);
}

.topbar .topbar-title {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: .1em;
}
.topbar .topbar-title span {
  color: var(--accent-pale);
}
.topbar .topbar-actions {
  display: flex;
  gap: 8px;
}

/* logout button */
.btn-logout {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
  text-decoration: none;
  padding: 6px 12px;
  border: 1px solid var(--border-dim);
  border-radius: 2px;
  background: transparent;
  transition: all var(--transition);
  letter-spacing: .1em;
  text-transform: uppercase;
}
.btn-logout:hover {
  color: var(--accent-pale);
  border-color: var(--border-glow);
  background: var(--bg-raised);
  box-shadow: 0 0 8px rgba(139,26,26,.2);
}

/* ── CONTENT AREA (pagine del taccuino) ───────────────────── */
.content-area {
  flex: 1;
  overflow-y: auto;
  padding: 32px 40px;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-rot) transparent;
}
.content-area::-webkit-scrollbar { width: 5px; }
.content-area::-webkit-scrollbar-track { background: var(--bg-void); }
.content-area::-webkit-scrollbar-thumb { background: var(--accent-rot); }

/* ── STATO VUOTO (nessun taccuino) ────────────────────────── */
.empty-state {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 16px;
  animation: fadeIn .8s ease;
}
.empty-state .empty-icon {
  font-size: 48px;
  opacity: .25;
  animation: pulse 4s ease-in-out infinite;
}
.empty-state h2 {
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 400;
  color: var(--text-dim);
  letter-spacing: .14em;
  text-transform: uppercase;
}
.empty-state p {
  font-size: 12px;
  color: var(--text-ghost);
  max-width: 280px;
  line-height: 1.7;
}

/* ── PAGINA (card singola) ────────────────────────────────── */
.page-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-dim);
  border-radius: 3px;
  margin-bottom: 28px;
  overflow: hidden;
  animation: slideDown .35s cubic-bezier(.4,0,.2,1);
  transition: border-color var(--transition);
}
.page-card:hover {
  border-color: var(--border-glow);
}

/* page header */
.page-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 18px 10px;
  border-bottom: 1px solid var(--border-dim);
}
.page-card-header .page-number {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-ghost);
  letter-spacing: .1em;
}
.page-card-header .page-actions {
  display: flex;
  gap: 6px;
}
.page-card-header .page-actions button {
  background: none;
  border: none;
  color: var(--text-ghost);
  cursor: pointer;
  font-size: 14px;
  padding: 2px 6px;
  border-radius: 2px;
  transition: color var(--transition), background var(--transition);
}
.page-card-header .page-actions button:hover {
  color: var(--accent-pale);
  background: var(--bg-raised);
}
.page-card-header .page-actions button.btn-del:hover {
  color: var(--accent-blood);
}

/* page title */
.page-title-wrap {
  padding: 16px 24px 8px;
  text-align: center;
}
.page-title-input {
  width: 100%;
  max-width: 480px;
  background: transparent;
  border: none;
  border-bottom: 1px solid transparent;
  color: var(--accent-pale);
  font-family: var(--font-mono);
  font-size: 17px;
  letter-spacing: .06em;
  text-align: center;
  padding: 6px 0;
  outline: none;
  transition: border-color var(--transition);
}
.page-title-input:focus {
  border-bottom-color: var(--border-glow);
}
.page-title-input::placeholder { color: var(--text-ghost); }

/* page image */
.page-image-wrap {
  padding: 12px 24px;
  text-align: center;
}
.page-image-wrap .img-placeholder {
  border: 1px dashed var(--border-dim);
  border-radius: 3px;
  padding: 28px;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}
.page-image-wrap .img-placeholder:hover {
  border-color: var(--accent-rot);
  background: rgba(74,55,40,.06);
}
.page-image-wrap .img-placeholder span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-ghost);
  letter-spacing: .08em;
}
.page-image-wrap .img-placeholder .ph-icon { font-size: 22px; opacity: .4; }

.page-image-wrap .img-preview-container {
  position: relative;
  display: inline-block;
  max-width: 100%;
}
.page-image-wrap img.page-img {
  max-width: 100%;
  max-height: 380px;
  object-fit: contain;
  border-radius: 3px;
  display: block;
  filter: saturate(.75) contrast(1.05);
  /* leggero effetto desaturato per atmosfera */
}
.page-image-wrap .img-remove {
  position: absolute;
  top: 6px; right: 6px;
  background: rgba(10,10,10,.7);
  border: 1px solid var(--border-dim);
  color: var(--accent-blood);
  font-size: 14px;
  width: 24px; height: 24px;
  border-radius: 3px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}
.page-image-wrap .img-remove:hover { background: rgba(139,26,26,.25); }

/* hidden file input */
input[type="file"] { display: none; }

/* page text */
.page-text-wrap {
  padding: 12px 24px 20px;
  position: relative;
}
.page-text-wrap.has-overflow::after {
  content: '';
  position: absolute;
  bottom: 20px;
  left: 24px;
  right: 24px;
  height: 40px;
  background: linear-gradient(transparent, var(--bg-surface));
  pointer-events: none;
}
.page-text-wrap.has-overflow:focus-within::after {
  opacity: 0;
}
.page-text-wrap.is-scrolled::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 24px;
  right: 24px;
  height: 40px;
  background: linear-gradient(var(--bg-surface), transparent);
  pointer-events: none;
  z-index: 1;
}
.page-text-wrap.is-scrolled:focus-within::before {
  opacity: 0;
}
.page-text-input {
  display: block;
  width: 100%;
  height: 175px;                   /* altezza fissa: ~7 righe (prima ~3). Più testo → scorre */
  background: transparent;
  border: none;
  border-bottom: 1px solid transparent;
  color: var(--text-primary);
  font-family: var(--font-system);
  font-size: 14px;
  line-height: 1.8;
  resize: vertical;                /* si può trascinare l'angolo per allargare */
  outline: none;
  transition: border-color var(--transition);
}
.page-text-input:focus {
  border-bottom-color: var(--border-glow);
}
.page-text-input::placeholder { color: var(--text-ghost); }

/* ── ADD PAGE BTN (in fondo alla lista pagine) ────────────── */
.add-page-wrap {
  text-align: center;
  padding: 8px 0 20px;
}
.add-page-btn {
  display: inline-block;
  padding: 7px 18px;
  background: transparent;
  border: 1px dashed var(--border-dim);
  color: var(--text-ghost);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  cursor: pointer;
  border-radius: 2px;
  transition: border-color var(--transition), color var(--transition), box-shadow var(--transition);
}
.add-page-btn:hover {
  border-color: var(--accent-rot);
  color: var(--accent-pale);
  box-shadow: 0 0 10px rgba(139,26,26,.15);
}

/* ── MODAL (rinominare taccuino) ──────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0,0,0,.72);
  backdrop-filter: blur(2px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn .2s ease;
}
.modal {
  background: var(--bg-surface);
  border: 1px solid var(--border-glow);
  border-radius: 4px;
  padding: 28px 32px;
  width: 360px;
  max-width: 90%;
  box-shadow: 0 0 40px rgba(139,26,26,.15);
}
.modal h3 {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 400;
  color: var(--accent-pale);
  letter-spacing: .14em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.modal input[type="text"] {
  width: 100%;
  background: var(--bg-deep);
  border: 1px solid var(--border-dim);
  border-radius: 2px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 9px 12px;
  outline: none;
  transition: border-color var(--transition);
}
.modal input[type="text"]:focus { border-color: var(--border-glow); }
.modal .modal-actions {
  display: flex;
  gap: 10px;
  margin-top: 20px;
  justify-content: flex-end;
}
.modal .modal-actions .btn {
  width: auto;
  display: inline-block;
  padding: 7px 18px;
}

/* ── CONFIRM DIALOG ──────────────────────────────────────── */
.confirm-overlay {
  position: fixed;
  inset: 0;
  z-index: 1001;
  background: rgba(0,0,0,.78);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn .18s ease;
}
.confirm-box {
  background: var(--bg-surface);
  border: 1px solid var(--accent-blood);
  border-radius: 4px;
  padding: 24px 28px;
  width: 320px;
  max-width: 90%;
  box-shadow: 0 0 30px rgba(139,26,26,.25);
}
.confirm-box p {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-primary);
  line-height: 1.7;
  margin-bottom: 18px;
}
.confirm-box .confirm-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}
.confirm-box .btn-danger {
  border-color: var(--accent-blood);
  color: #c44;
}
.confirm-box .btn-danger:hover {
  background: rgba(139,26,26,.2);
  box-shadow: 0 0 12px rgba(139,26,26,.4);
}

/* ── LOADING OVERLAY ─────────────────────────────────────── */
.loading-overlay {
  position: fixed;
  inset: 0;
  z-index: 1002;
  background: rgba(0,0,0,.85);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn .2s ease;
}
.loading-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-glow);
  border-radius: 4px;
  padding: 40px 50px;
  text-align: center;
  box-shadow: 0 0 40px rgba(139,26,26,.3);
  min-width: 280px;
}
.loading-spinner {
  width: 40px;
  height: 40px;
  margin: 0 auto 20px;
  border: 3px solid var(--border-dim);
  border-top-color: var(--accent-blood);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
.loading-box p {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-primary);
  letter-spacing: .08em;
}

/* Puntini animati con larghezza fissa */
.loading-dots {
  display: inline-block;
  width: 18px; /* Spazio fisso per i 3 puntini */
  text-align: left;
}

.loading-dots::after {
  content: '';
  animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
  0%, 20% { content: ''; }
  40% { content: '.'; }
  60% { content: '..'; }
  80%, 100% { content: '...'; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ============================================================
   ANIMAZIONI
   ============================================================ */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
  0%, 100% { opacity: .25; }
  50%      { opacity: .4; }
}

/* glitch sul titolo sidebar — si attiva ogni tanto */
@keyframes glitchText {
  0%   { text-shadow: 0 0 12px rgba(139,26,26,.4); clip-path: none; }
  2%   { text-shadow: 2px 0 8px rgba(176,48,96,.6); clip-path: inset(20% 0 60% 0); transform: translate(-2px,1px); }
  4%   { text-shadow: -1px 0 10px rgba(139,26,26,.5); clip-path: inset(50% 0 30% 0); transform: translate(2px,-1px); }
  6%   { text-shadow: 0 0 12px rgba(139,26,26,.4); clip-path: none; transform: none; }
  100% { text-shadow: 0 0 12px rgba(139,26,26,.4); clip-path: none; transform: none; }
}
.sidebar-header h1 {
  animation: glitchText var(--glitch-dur) steps(1) infinite;
}

/* ── RESPONSIVE (base) ───────────────────────────────────── */
@media (max-width: 680px) {
  .sidebar { width: 200px; }
  .main { margin-left: 200px; }
  .content-area { padding: 20px 16px; }
}
@media (max-width: 900px), (max-height: 500px) and (pointer: coarse) {
  .sidebar { 
    width: min(84vw, 300px);
    transform: translateX(-100%);
    z-index: 1000;
    box-shadow: none;
    transition: transform 0.3s cubic-bezier(.4,0,.2,1), box-shadow 0.3s;
  }
  .sidebar.open { 
    transform: translateX(0);
    box-shadow: 4px 0 20px rgba(0,0,0,.5);
  }
  .main { margin-left: 0; }
  
  /* Mostra hamburger su mobile */
  .btn-hamburger {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  
  /* Overlay per chiudere sidebar cliccando fuori */
  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,.6);
    z-index: 999;
  }
  .sidebar-overlay.active {
    display: block;
  }
}


/* ── MODALITÀ VISUALIZZATORE / EDITOR ─────────────────────── */
button.btn-logout { cursor: pointer; }

/* in sola lettura niente controlli di modifica */
body.is-viewer #btnNewNotebook,
body.is-viewer #btnExport,
body.is-viewer #btnImport,
body.is-viewer .sidebar-footer,
body.is-viewer .nb-delete,
body.is-viewer .page-actions,
body.is-viewer .add-page-wrap,
body.is-viewer .img-remove { display: none !important; }

body.is-viewer .page-title-input,
body.is-viewer .page-text-input { cursor: default; }

/* modale di accesso */
.modal input[type="password"] {
  width: 100%;
  background: var(--bg-deep);
  border: 1px solid var(--border-dim);
  border-radius: 2px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 9px 12px;
  outline: none;
  transition: border-color var(--transition);
}
.modal input[type="password"]:focus { border-color: var(--border-glow); }
.modal .modal-error {
  min-height: 16px;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: #c44;
  letter-spacing: .06em;
}


/* ── POSIZIONE DEL LIBRO (fila / libro) ───────────────────── */
.topbar .topbar-title span.topbar-pos {
  display: inline-block;
  margin-left: 14px;
  padding: 2px 8px;
  border: 1px solid var(--border-glow);
  border-radius: 2px;
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-dim);
  white-space: nowrap;
}

/* modale modifica taccuino: etichette e campi numerici */
.modal .modal-label {
  display: block;
  margin: 16px 0 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: .12em;
  text-transform: uppercase;
}
.modal .modal-label:first-of-type { margin-top: 0; }
.modal .modal-row { display: flex; gap: 12px; }
.modal .modal-row > div { flex: 1; }
.modal input[type="number"] {
  width: 100%;
  background: var(--bg-deep);
  border: 1px solid var(--border-dim);
  border-radius: 2px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 9px 12px;
  outline: none;
  transition: border-color var(--transition);
}
.modal input[type="number"]:focus { border-color: var(--border-glow); }
.modal select {
  width: 100%;
  background: var(--bg-deep);
  border: 1px solid var(--border-dim);
  border-radius: 2px;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 9px 12px;
  outline: none;
  transition: border-color var(--transition);
}
.modal select:focus { border-color: var(--border-glow); }


/* ── NOME FILE ORIGINALE (accanto al tasto modifica/esci) ─── */
.topbar .topbar-left { min-width: 0; }
.topbar .topbar-actions { align-items: center; min-width: 0; }
.topbar-file {
  display: inline-block;
  max-width: 280px;
  padding: 2px 8px;
  border: 1px solid var(--border-glow);
  border-radius: 2px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .06em;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.topbar-file::before { content: '\1F4C4  '; opacity: .7; }
.topbar-file[hidden] { display: none; }
@media (max-width: 680px) { .topbar-file { max-width: 160px; } }
@media (max-width: 480px) { .topbar-file { max-width: 90px; } }


/* ── BOX TRADUZIONE (affianco all'immagine) ───────────────── */
/* Senza box: layout identico all'originale.
   Con box: griglia a 3 colonne → l'immagine resta CENTRATA dove stava e la
   box occupa lo spazio libero a destra. Solo con immagini molto larghe
   (la box deve avere almeno 220px) l'immagine si sposta il minimo necessario. */
.page-media.has-tr {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, auto) minmax(220px, 1fr);
  align-items: stretch;
}
.page-media.has-tr .page-image-wrap { grid-column: 2; min-width: 0; padding: 12px 0; }
.page-media.has-tr .page-tr-wrap    { grid-column: 3; }
.page-image-wrap.is-empty { display: none; }
/* nessuna immagine (sola lettura): la box prende tutta la larghezza */
.page-media.has-tr.no-img { display: block; }

.page-tr-wrap {
  min-width: 0;
  display: flex;
  flex-direction: column;
  margin: 12px 24px 12px 16px;
}
.page-media.no-img .page-tr-wrap { margin: 12px 24px; }
.page-tr-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 0 6px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-ghost);
}
.page-tr-head .tr-remove {
  background: none;
  border: none;
  color: var(--text-ghost);
  cursor: pointer;
  font-size: 14px;
  padding: 0 4px;
  border-radius: 2px;
  transition: color var(--transition), background var(--transition);
}
.page-tr-head .tr-remove:hover { color: var(--accent-blood); background: var(--bg-raised); }
.page-tr-input {
  flex: 1;
  display: block;
  width: 100%;
  min-height: 180px;
  background: var(--bg-deep);
  border: 1px solid var(--border-dim);
  border-radius: 3px;
  color: var(--text-primary);
  font-family: var(--font-system);
  font-size: 14px;
  line-height: 1.8;
  padding: 10px 12px;
  resize: vertical;
  outline: none;
  transition: border-color var(--transition);
}
.page-tr-input:focus { border-color: var(--border-glow); }
.page-tr-input::placeholder { color: var(--text-ghost); }

/* pulsante "aggiungi traduzione" nell'header della pagina */
.page-card-header .page-actions button.btn-tr { font-size: 13px; }

@media (max-width: 680px) {
  .page-media.has-tr { display: block; }
  .page-media.has-tr .page-image-wrap { padding: 12px 24px; }
  .page-tr-wrap, .page-media.no-img .page-tr-wrap { margin: 0 24px 16px; }
}


/* ============================================================
   MOBILE / TOUCH
   ============================================================ */
html { -webkit-text-size-adjust: 100%; }
button, .btn, .notebook-item, .btn-logout, .btn-hamburger {
  touch-action: manipulation;                 /* niente ritardo/zoom col doppio tap */
  -webkit-tap-highlight-color: transparent;
}
/* altezza reale dello schermo (la barra del browser del telefono non taglia più il fondo) */
@supports (height: 100dvh) {
  html, body, .main { height: 100dvh; }
}
.content-area { overscroll-behavior: contain; -webkit-overflow-scrolling: touch; }

/* in sola lettura titolo/testo vuoti non occupano spazio */
.page-title-wrap.is-blank,
.page-text-wrap.is-blank { display: none; }
body.is-viewer .page-text-input,
body.is-viewer .page-tr-input { resize: none; }
body.is-viewer .page-tr-input { flex: none; min-height: 0; overflow: hidden; }

/* il pulsante ☰ compare ovunque la sidebar sia un menu a scomparsa */
@media (max-width: 900px), (max-height: 500px) and (pointer: coarse) {
  .topbar { height: auto; min-height: 48px; padding: 6px 12px; gap: 8px; flex-wrap: wrap; }
  .topbar .topbar-left { flex: 1 1 0; min-width: 0; order: 1; }
  .topbar .topbar-title {
    display: block; flex: 1 1 auto; min-width: 0;
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap; line-height: 1.35;
  }
  .topbar .topbar-title span.topbar-pos {
    display: block; margin: 1px 0 0; padding: 0; border: none;
    font-size: 9px; overflow: hidden; text-overflow: ellipsis;
  }
  /* pulsante modalità accanto al titolo; il nome file va su una riga sotto */
  .topbar .topbar-actions { display: contents; }
  .topbar .btn-logout { order: 2; flex: 0 0 auto; }
  .topbar .topbar-file { order: 3; flex: 1 1 100%; max-width: none; }
}

@media (max-width: 680px) {
  .content-area { padding: 14px 10px 28px; }
  .page-card { margin-bottom: 18px; }
  .page-card-header { padding: 10px 12px 8px; }
  .page-title-wrap { padding: 12px 14px 4px; }
  .page-image-wrap,
  .page-media.has-tr .page-image-wrap { padding: 8px 10px; }
  .page-tr-wrap,
  .page-media.no-img .page-tr-wrap { margin: 0 12px 14px; }
  .page-text-wrap { padding: 8px 14px 16px; }
  .page-text-wrap.has-overflow::after,
  .page-text-wrap.is-scrolled::before { left: 14px; right: 14px; }
  .modal { padding: 20px 18px; width: 92%; max-width: 92%; }
  .confirm-box { padding: 20px 18px; width: 92%; max-width: 92%; }
}

/* schermi touch: bersagli più grandi e testo a 16px (sotto i 16px iOS zooma quando tocchi un campo) */
@media (pointer: coarse) {
  .page-title-input,
  .page-text-input,
  .page-tr-input,
  .modal input,
  .modal select,
  .modal textarea { font-size: 16px; }
  .notebook-item { padding-top: 12px; padding-bottom: 12px; }
  .nb-delete,
  .page-card-header .page-actions button,
  .page-tr-head .tr-remove { min-width: 40px; min-height: 40px; font-size: 18px; }
  .btn-hamburger { width: 40px; height: 40px; }
  .btn, .btn-logout { min-height: 40px; }
  .page-image-wrap .img-remove { width: 36px; height: 36px; }
}