/*!
 * =========================================================================
 * ATTRAVERSO MADDALONI - EDITOR DI LAYOUT NATIVO
 * =========================================================================
 * Questo software è un prodotto digitale originale sviluppato nell'ambito
 * della tesi di laurea triennale in Design della Comunicazione Visiva
 * presso l'Accademia di Belle Arti di Napoli (ABANA).
 * 
 * Progetto, Ricerca e Sviluppo: Domenico Mataluna (Tesista)
 * Relatrice: Prof.ssa Paola Tuccillo
 * Co-relatore: Alessandro Tartaglia
 * Anno Accademico / Data di Rilascio: 2026
 * 
 * =========================================================================
 * TUTELA LEGALE E DIRITTO D'AUTORE
 * =========================================================================
 * © 2026 Domenico Mataluna. Tutti i diritti riservati.
 * 
 * Tutti gli asset, i vincoli logici di layout, i motori di generazione,
 * il codice sorgente (HTML, CSS, JS) e le integrazioni del carattere 
 * tipografico "Mataluna" sono di proprietà esclusiva dell'autore e sono
 * tutelati dalla normativa internazionale sul Diritto d'Autore.
 * 
 * È SEVERAMENTE VIETATO:
 * - Copiare, clonare, riprodurre o ridistribuire questo codice (o parti di esso).
 * - Utilizzare il software per scopi commerciali o per l'alimentazione di modelli IA.
 * - Rivendere, modificare senza autorizzazione o rimuovere la presente nota.
 * 
 * Qualsiasi utilizzo non espressamente autorizzato per iscritto dall'autore 
 * sarà perseguibile a norma di legge.
 * =========================================================================
 */

/* ==========================================================================
   DESIGN SYSTEM - STILE PULITO & MINIMALISTA
   ========================================================================== */

/* Token e variabili */
:root {
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  
  /* Palette cromatica minimal */
  --color-bg-page: #FFFFFF;
  --color-bg-sidebar: #FFFFFF;
  --color-border: #E5E5E5;
  --color-text-main: #1A1A1A;
  --color-text-muted: #737373;
  
  --color-primary: #1A1A1A;
  --color-primary-hover: #333333;
  --color-accent-blue: #007AFF;
  
  --sidebar-width: 360px;
  --header-height: 64px;
}

/* Reset Globale */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-bg-page);
  color: var(--color-text-main);
  overflow: hidden;
  height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbars pulite per la Sidebar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: #D4D4D4;
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: #A3A3A3;
}

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

/* Header principale */
.app-header {
  height: var(--header-height);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 24px;
  background-color: #FFFFFF;
  position: relative;
  z-index: 10;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 24px; /* Aumentata spaziatura tra elementi */
}

.header-right {
  display: flex;
  align-items: center;
}

/* Workspace principale */
.app-workspace {
  display: flex;
  height: calc(100vh - var(--header-height));
  width: 100%;
}

/* Sidebar sinistra */
.sidebar {
  width: var(--sidebar-width);
  height: 100%;
  border-right: 1px solid var(--color-border);
  background-color: var(--color-bg-sidebar);
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 32px;
}

/* Area di anteprima destra */
.preview-pane {
  flex: 1;
  height: 100%;
  background-color: #FAFAFA; /* Grigio chiarissimo per far risaltare la card */
  position: relative;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* ==========================================================================
   COMPONENTI UI & PULSANTI
   ========================================================================== */

/* Pulsante Indietro */
.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-text-main);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: opacity 0.15s ease;
}
.btn-back:hover {
  opacity: 0.7;
}

/* Badge Editor */
.badge-editor {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-main);
  border: 1px solid var(--color-text-main);
  padding: 4px 10px;
  border-radius: 6px;
  letter-spacing: 0.5px;
}

/* Bottone Download */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: none;
  border-radius: 8px; /* Meno arrotondato, più pro */
  font-size: 13px; /* Testo leggermente più piccolo */
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease, transform 0.1s ease;
}
.btn-download {
  background-color: var(--color-primary);
  color: #FFFFFF;
  padding: 8px 18px; /* Meno spesso */
}
.btn-download:hover {
  background-color: var(--color-primary-hover);
}
.btn-download:active {
  transform: scale(0.98);
}

.filename-input-container {
  display: flex;
  align-items: center;
}
.filename-input-container .text-input {
  width: 220px;
  padding: 8px 12px;
  background-color: #F9F9F9;
  border: 1px solid transparent;
}
.filename-input-container .text-input:hover,
.filename-input-container .text-input:focus {
  border-color: var(--color-border);
  background-color: #FFFFFF;
}

/* ==========================================================================
   ELEMENTI DELLA SIDEBAR (SEZIONI E CONTROLLI)
   ========================================================================== */

/* Raggruppamenti di sezione */
.section-group {
  display: flex;
  flex-direction: column;
  gap: 16px;
  border-bottom: 1px solid #F3F3F3;
  padding-bottom: 24px;
}
.section-group:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

/* Titoli delle sezioni */
.section-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-main);
  letter-spacing: -0.2px;
  margin-bottom: 4px;
}

/* Sotto-titoli interni */
.subsection-title {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-muted);
  letter-spacing: 0.5px;
  margin-top: 12px;
  margin-bottom: 12px;
}

/* Singolo controllo */
.control-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.control-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text-muted);
}

/* Input dropdown personalizzato (select) */
.select-wrapper {
  position: relative;
  width: 100%;
}
.select-wrapper select {
  width: 100%;
  appearance: none;
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 14px;
  color: var(--color-text-main);
  font-family: var(--font-main);
  cursor: pointer;
  transition: border-color 0.15s ease;
}
.select-wrapper select:focus {
  outline: none;
  border-color: var(--color-primary);
}
.select-wrapper::after {
  content: "";
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 10px;
  height: 6px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' fill='none' viewBox='0 0 10 6'%3E%3Cpath stroke='%231A1A1A' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M1 1l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  pointer-events: none;
}

/* Textarea del testo principale */
.textarea-input {
  width: 100%;
  height: 120px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 14px;
  color: var(--color-text-main);
  font-family: var(--font-main);
  resize: none;
  transition: border-color 0.15s ease;
}
.textarea-input:focus {
  outline: none;
  border-color: var(--color-primary);
}
.textarea-input::placeholder {
  color: #A3A3A3;
}

/* Input di testo normale */
.text-input {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 13px;
  color: var(--color-text-main);
  font-family: var(--font-main);
  transition: border-color 0.15s ease;
}
.text-input:focus {
  outline: none;
  border-color: var(--color-primary);
}

/* ==========================================================================
   SLIDER TIPOGRAFICI & ACCESSORI
   ========================================================================== */
.font-sliders-group {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.slider-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.slider-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text-muted);
}

.slider-val {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-main);
}

/* Stile slider input range minimalista */
input[type="range"] {
  width: 100%;
  appearance: none;
  height: 2px;
  background: var(--color-border);
  outline: none;
  border-radius: 1px;
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 12px;
  height: 12px;
  background-color: var(--color-primary);
  border-radius: 2px;
  cursor: pointer;
  transition: transform 0.1s ease;
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

/* ==========================================================================
   CHECKBOX E ACCESSORI
   ========================================================================== */

.checkbox-group {
  margin-top: 8px;
}

.custom-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
}

.custom-checkbox input[type="checkbox"] {
  display: none;
}

/* Box della Checkbox personalizzata */
.checkbox-box {
  width: 18px;
  height: 18px;
  border: 1px solid var(--color-border);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #FFFFFF;
  margin-top: 2px;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.custom-checkbox input[type="checkbox"]:checked + .checkbox-box {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
}

.custom-checkbox input[type="checkbox"]:checked + .checkbox-box::after {
  content: "";
  width: 4px;
  height: 8px;
  border: solid #FFFFFF;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg) translate(-0.5px, -0.5px);
}

/* Testo descrittivo del checkbox */
.checkbox-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.checkbox-main-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-main);
}

.checkbox-sub-label {
  font-size: 11px;
  color: var(--color-text-muted);
}

/* Pannello a comparsa caricamento logo/QR */
.logo-upload-panel {
  background-color: #FAFAFA;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 8px;
}

.file-uploader {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.file-uploader input[type="file"] {
  display: none;
}

.btn-upload-logo {
  display: block;
  text-align: center;
  border: 1px dashed var(--color-border);
  border-radius: 6px;
  padding: 12px;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text-main);
  background-color: #FFFFFF;
  cursor: pointer;
  transition: border-color 0.15s ease;
}
.btn-upload-logo:hover {
  border-color: var(--color-primary);
}

.file-name {
  font-size: 10px;
  color: var(--color-text-muted);
  text-align: center;
  word-break: break-all;
}

/* ==========================================================================
   GRIGLIA PALETTE COLORI (SWATCH CARDS)
   ========================================================================== */

.color-palette-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  width: 100%;
}

/* La singola card del colore */
.color-swatch-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 8px 12px;
  cursor: pointer;
  background-color: #FFFFFF;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.color-swatch-card:hover {
  border-color: #CCCCCC;
}

.color-swatch-card.selected {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 1px var(--color-primary);
}

.swatch-left {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Quadratino colorato a sinistra */
.swatch-color-box {
  width: 20px;
  height: 20px;
  border-radius: 4px;
  border: 1px solid rgba(0, 0, 0, 0.08);
}

.swatch-name {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-main);
}

/* Icona Checkmark se selezionata */
.swatch-checkmark {
  width: 12px;
  height: 12px;
  display: none;
  align-items: center;
  justify-content: center;
}

.color-swatch-card.selected .swatch-checkmark {
  display: flex;
}

.swatch-checkmark::after {
  content: "";
  width: 3px;
  height: 6px;
  border: solid var(--color-primary);
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

/* ==========================================================================
   AREA DI ANTEPRIMA DESTRO E ZOOM CONTROLLI
   ========================================================================== */

/* Pannello controlli Canvas (Zoom, reset) in basso */
.canvas-controls {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 9999px;
  padding: 6px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
  z-index: 5;
}

.btn-canvas-ctrl {
  background: none;
  border: none;
  color: var(--color-text-main);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4px;
  border-radius: 50%;
  transition: background-color 0.1s ease;
}
.btn-canvas-ctrl:hover {
  background-color: #F5F5F5;
}

.zoom-divider {
  width: 1px;
  height: 16px;
  background-color: var(--color-border);
}

.zoom-slider {
  width: 80px !important;
}

.zoom-val {
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-main);
  min-width: 36px;
  text-align: right;
}

/* Contenitore e Artboard dell'anteprima */
.artboard-container {
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: grab;
}
.artboard-container:active {
  cursor: grabbing;
}

.artboard {
  position: absolute;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
  background-color: #FFFFFF;
  transform-origin: center center;
  transition: transform 0.1s ease-out;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Canvas effettivo */
canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
}

/* ==========================================================================
   STATI UTILITY / VISIBILITÀ
   ========================================================================== */
.hidden {
  display: none !important;
}

/* ==========================================================================
   SEGMENTED BUTTONS (PICCOLO/MEDIO/GRANDE)
   ========================================================================== */
.size-selector-group {
  display: flex;
  background-color: #F5F5F5;
  border-radius: 8px;
  padding: 2px;
  width: 100%;
  margin-top: 4px;
}

.size-btn {
  flex: 1;
  border: none;
  background: none;
  font-family: var(--font-main);
  font-size: 11px;
  font-weight: 600;
  color: var(--color-text-muted);
  padding: 8px 0;
  border-radius: 6px;
  cursor: pointer;
  text-align: center;
  transition: background-color 0.15s, color 0.15s;
}

.size-btn:hover {
  color: var(--color-text-main);
}

.size-btn.active {
  background-color: #FFFFFF;
  color: var(--color-text-main);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

/* WCAG Contrast Warning Badge */
.contrast-badge {
  background-color: #FFF9E6;
  border: 1px solid #FFE0B2;
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 11px;
  font-weight: 500;
  color: #B78103;
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 12px;
  line-height: 1.4;
}

.contrast-badge.success {
  background-color: #E8F5E9;
  border-color: #C8E6C9;
  color: #2E7D32;
}

.contrast-badge svg {
  flex-shrink: 0;
  margin-top: 1px;
}

/* ==========================================================================
   MOBILE RESPONSIVENESS & BOTTOM SHEETS (MODALS GLASSMORPHISM)
   ========================================================================== */

/* Nascondi gli elementi Mobile sulla versione Desktop */
.mobile-nav,
.mobile-modal-overlay,
.modal-close-btn,
.modal-handle {
  display: none;
}

@media (max-width: 768px) {
  /* 1. App Workspace e Canvas (Sfondo dell'App) */
  .app-workspace {
    flex-direction: column;
  }
  
  .preview-pane {
    height: 100vh; 
    width: 100%;
    position: fixed;
    top: 0; left: 0;
    z-index: 1;
    background-color: #EFEFEF;
  }
  
  /* L'header diventa trasparente e compatto */
  .app-header {
    position: fixed;
    top: 0; left: 0; width: 100%;
    height: 60px; /* Fissa altezza */
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(15px);
    z-index: 10;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    padding: 0 16px;
    gap: 12px;
  }
  
  .header-left {
    gap: 12px;
  }

  .header-left .badge-editor { 
    display: none; /* Su mobile nascondiamo il badge per fare spazio al nome file e tasto export */
  }

  .filename-input-container .text-input {
    width: 150px;
    padding: 6px 10px;
    font-size: 12px;
  }

  .btn-download {
    padding: 6px 12px;
    font-size: 12px;
  }
  .btn-download svg {
    width: 16px;
    height: 16px;
  }

  /* 2. Controlli dello Zoom spostati in ALTO su mobile */
  .canvas-controls {
    top: 76px; /* Sotto l'header */
    bottom: auto; /* Rimuovi posizionamento dal basso */
    padding: 6px 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  }

  /* 3. Smontaggio Sidebar Desktop (Diventa un contenitore invisibile pass-through) */
  .sidebar {
    width: 100%;
    height: 0;
    background: transparent;
    border: none;
    padding: 0;
    position: absolute;
    pointer-events: none; /* Lascia passare i tap al canvas */
    overflow: visible;
  }

  /* 4. Le Sezioni diventano Bottom Sheets (Modali a scorrimento) */
  .section-group {
    display: flex !important; /* Forza la visualizzazione anche se chiuse da JS */
    position: fixed;
    bottom: -120%; /* Nascoste fuori dallo schermo */
    left: 0;
    width: 100%;
    max-height: 50vh; /* HALF-SHEET UX: Lascia la parte superiore dello schermo libera */
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 90;
    border-radius: 32px 32px 0 0;
    padding: 0 24px 90px 24px; /* Padding top a 0 perché è gestito dal modal-header */
    box-shadow: 0 -10px 40px rgba(0,0,0,0.15);
    transition: bottom 0.4s cubic-bezier(0.1, 1, 0.2, 1);
    overflow-y: auto;
    overflow-x: hidden; /* Evita lo scroll orizzontale fastidioso */
    border-bottom: none;
    pointer-events: auto; /* Riattiva i tap sulla modale */
  }

  /* Animazione Modale Aperta */
  .section-group.modal-open {
    bottom: 0;
  }

  /* INTESTAZIONE STICKY: Titolo, Maniglia e Tasto Chiudi rimangono sempre in alto! */
  .modal-header {
    position: sticky;
    top: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 10;
    margin: 0 -24px 16px -24px;
    padding: 16px 24px 16px 24px;
    border-bottom: 1px solid rgba(0,0,0,0.05);
  }

  /* Maniglia Superiore (stile iOS) */
  .modal-handle {
    display: block;
    width: 40px;
    height: 5px;
    background-color: #D4D4D4;
    border-radius: 3px;
    margin: 0 auto 16px auto;
  }

  /* Pulsante X (Chiudi) */
  .modal-close-btn {
    display: flex;
    position: absolute;
    top: 16px;
    right: 24px;
    background: #F3F3F3;
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    align-items: center;
    justify-content: center;
    color: var(--color-text-main);
    cursor: pointer;
  }

  /* Nascondi l'icona chevron tipica degli accordion Desktop */
  .section-title .chevron {
    display: none;
  }
  
  .section-title {
    margin-bottom: 0;
    font-size: 16px;
  }

  /* 5. Mobile Navigation Bar (Bottom Bar) */
  .mobile-nav {
    display: flex;
    position: fixed;
    bottom: 0; left: 0; width: 100%;
    height: 70px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-top: 1px solid rgba(0,0,0,0.05);
    z-index: 100;
    justify-content: space-around;
    align-items: center;
    padding-bottom: env(safe-area-inset-bottom);
  }

  .mobile-nav-btn {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    background: none;
    border: none;
    color: #A3A3A3;
    font-size: 10px;
    font-weight: 600;
    font-family: var(--font-main);
    cursor: pointer;
    transition: color 0.2s;
  }

  .mobile-nav-btn svg {
    width: 24px;
    height: 24px;
  }

  .mobile-nav-btn.active {
    color: var(--color-primary);
  }

  /* 6. Overlay Oscuro Sfocato rimosso su Mobile per permettere la visibilità del rendering in tempo reale */
  .mobile-modal-overlay {
    display: none !important;
  }
}