/* --- INTEGRAZIONE FONT CUSTOM LOCALE --- */
@font-face {
    font-family: 'EasyReading PRO';
    src: url('../ttf/EasyReadingPRO.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

* {
    box-sizing: border-box;
    outline: none;
}

/* FIX: Utilizzo di dvh per Mobile e strict hidden overflow globale */
body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg-color);
    color: var(--text-primary);
    height: 100dvh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    touch-action: none;
}

/* FIX: Ancoraggio Header fisso */
header {
    background: var(--sidebar-bg);
    height: 50px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 15px;
    justify-content: space-between;
    flex-shrink: 0;
    z-index: 200;
    touch-action: none;
    transition: background-color 0.3s ease, border-color 0.3s ease;
}

/* --- HEADER ALLERTA: SESSIONE RIPRISTINATA (SENZA WORKSPACE / SOLO RAM) --- */
header.header-unsaved {
    background-color: #fee2e2 !important;
    border-bottom: 1px solid #fca5a5 !important;
    color: #991b1b !important;
}

header.header-unsaved .brand,
header.header-unsaved .brand span#fileNameDisplay {
    color: #991b1b !important;
}

header.header-unsaved .icon-btn {
    color: #991b1b !important;
}

header.header-unsaved .icon-btn:hover {
    background-color: rgba(153, 27, 27, 0.12) !important;
    color: #7f1d1d !important;
}

header.header-unsaved .separator {
    background-color: rgba(153, 27, 27, 0.25) !important;
}

header.header-unsaved .status-pill.status-error {
    background-color: #fecaca !important;
    color: #7f1d1d !important;
    border: 1px solid #ef4444;
}

header.header-unsaved .btn:not(.btn-primary) {
    background-color: #ffffff !important;
    border-color: #fca5a5 !important;
    color: #991b1b !important;
}

header.header-unsaved .btn:not(.btn-primary):hover {
    background-color: #fef2f2 !important;
}

[data-theme="dark"] header.header-unsaved,
[data-theme="notion-dark"] header.header-unsaved {
    background-color: #7f1d1d !important;
    border-bottom: 1px solid #991b1b !important;
    color: #fca5a5 !important;
}

[data-theme="dark"] header.header-unsaved .brand,
[data-theme="dark"] header.header-unsaved .brand span#fileNameDisplay,
[data-theme="notion-dark"] header.header-unsaved .brand,
[data-theme="notion-dark"] header.header-unsaved .brand span#fileNameDisplay {
    color: #fca5a5 !important;
}

[data-theme="dark"] header.header-unsaved .icon-btn,
[data-theme="notion-dark"] header.header-unsaved .icon-btn {
    color: #fca5a5 !important;
}

[data-theme="dark"] header.header-unsaved .icon-btn:hover,
[data-theme="notion-dark"] header.header-unsaved .icon-btn:hover {
    background-color: rgba(254, 202, 202, 0.15) !important;
    color: #ffffff !important;
}

[data-theme="dark"] header.header-unsaved .separator,
[data-theme="notion-dark"] header.header-unsaved .separator {
    background-color: rgba(254, 202, 202, 0.25) !important;
}

[data-theme="dark"] header.header-unsaved .status-pill.status-error,
[data-theme="notion-dark"] header.header-unsaved .status-pill.status-error {
    background-color: #991b1b !important;
    color: #fee2e2 !important;
    border: 1px solid #f87171;
}

[data-theme="dark"] header.header-unsaved .btn:not(.btn-primary),
[data-theme="notion-dark"] header.header-unsaved .btn:not(.btn-primary) {
    background-color: #272c34 !important;
    border-color: #991b1b !important;
    color: #fca5a5 !important;
}

.brand {
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.status-pill {
    font-size: 0.7rem;
    padding: 3px 8px;
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.3s;
    user-select: none;
}

.status-saved {
    background-color: #e5e7eb;
    color: #6b7280;
}

.status-saving {
    background-color: #fef08a;
    color: #854d0e;
}

.status-error {
    background-color: #fee2e2;
    color: #991b1b;
}

[data-theme="dark"] .status-saved {
    background-color: #374151;
    color: #9ca3af;
}

[data-theme="dark"] .status-saving {
    background-color: #713f12;
    color: #fef08a;
}

[data-theme="dark"] .status-error {
    background-color: #7f1d1d;
    color: #fca5a5;
}

.controls-group {
    display: flex;
    gap: 8px;
    align-items: center;
}

.separator {
    width: 1px;
    height: 20px;
    background: var(--border-color);
    margin: 0 5px;
}

/* Buttons */
.icon-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 5px;
    cursor: pointer;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    background: var(--item-hover);
    color: var(--text-primary);
}

.icon-btn.active {
    background: var(--item-active);
    color: var(--accent-color);
}

.icon-btn.danger:hover {
    background: #fee2e2;
    color: var(--danger-color);
}

.adv-icon-btn.danger {
    color: var(--danger-color);
}

.btn {
    padding: 5px 12px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background: var(--sidebar-bg);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
}

.btn:hover {
    background: var(--item-hover);
}

.btn-primary {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-editing {
    background-color: rgba(37, 99, 235, 0.1);
    border-color: var(--accent-color);
    color: var(--accent-color);
    font-weight: bold;
}

/* Hamburger Menu */
.main-menu-btn {
    width: 34px;
    height: 34px;
}

.main-menu-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 5px;
    background: var(--sidebar-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
    width: 220px;
    display: flex;
    flex-direction: column;
    padding: 6px;
    z-index: 1000;
}

.menu-item {
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.menu-item:hover {
    background: var(--item-hover);
}

.menu-item-row {
    padding: 8px 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-primary);
    font-size: 0.9rem;
}

.separator-h {
    height: 1px;
    background: var(--border-color);
    margin: 4px 0;
}

/* Layout */
.layout {
    display: flex;
    flex: 1;
    overflow: hidden; 
}

/* Sidebar */
aside {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: margin-left 0.3s;
    position: relative;
    touch-action: pan-y; 
}

aside.collapsed {
    margin-left: calc(var(--sidebar-width) * -1);
}

.sidebar-resizer {
    position: absolute;
    top: 0;
    right: -3px;
    width: 6px;
    height: 100%;
    cursor: col-resize;
    z-index: 100;
    background: transparent;
}

/* Search Box */
.search-box {
    padding: 10px;
    padding-bottom: 4px;
    border-bottom: 1px solid var(--border-color);
}

.search-wrapper {
    position: relative;
    width: 100%;
    display: flex;
    align-items: center;
}

.search-input {
    width: 100%;
    padding: 6px 85px 6px 10px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
    background: var(--bg-color);
    color: var(--text-primary);
}

.search-controls {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    gap: 4px;
}

.search-counter {
    font-size: 0.7rem;
    color: var(--text-secondary);
    margin-right: 4px;
    pointer-events: none;
}

.search-nav-btn, .search-clear-btn {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 2px;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
}

.search-nav-btn:hover {
    background: var(--border-color);
    color: var(--text-primary);
}

.search-clear-btn {
    margin-left: 2px;
    font-size: 0.85rem;
    font-weight: bold;
    width: 18px;
    height: 18px;
}

.search-clear-btn:hover {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

/* --- NUOVE TABS SIDEBAR (NOTION STYLE) --- */
.sidebar-tabs-container {
    display: flex;
    gap: 2px;
    padding: 8px 10px;
    overflow-x: auto;
    scrollbar-width: none; /* Firefox */
    -ms-overflow-style: none; /* IE/Edge */
    align-items: center;
}
.sidebar-tabs-container::-webkit-scrollbar {
    display: none; /* Chrome, Safari, Opera */
}

.sidebar-tab {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.sidebar-tab:hover {
    background: var(--item-hover);
    color: var(--text-primary);
}

.sidebar-tab.active {
    background: var(--item-active);
    color: var(--accent-color);
}

/* Nasconde le etichette testuali di default */
.sidebar-tab span.tab-label {
    display: none;
}

/* Mostra l'etichetta testuale SOLO per la scheda attiva */
.sidebar-tab.active span.tab-label {
    display: inline;
}

.sidebar-tools {
    display: flex;
    gap: 2px;
    margin-left: auto;
    padding-left: 5px;
}

/* Tree Scroll */
.tree-scroll {
    flex: 1;
    overflow-y: auto;
    padding: 5px;
    position: relative;
}

.tree-scroll::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.tree-scroll::-webkit-scrollbar-track {
    background: transparent;
    border-radius: 4px;
}

.tree-scroll::-webkit-scrollbar-thumb {
    background: rgba(150, 150, 150, 0.3);
    border-radius: 4px;
}

.tree-scroll::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

[data-theme="dark"] .tree-scroll::-webkit-scrollbar-thumb,
[data-theme="notion-dark"] .tree-scroll::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
}

.tree-scroll.drag-over-root {
    background: rgba(37, 99, 235, 0.05);
    box-shadow: inset 0 0 0 2px var(--accent-color);
}

/* Tree Nodes */
.node-wrapper {
    margin-bottom: 2px;
}

.node-content {
    display: flex;
    align-items: center;
    padding: 4px 8px;
    border-radius: 4px;
    cursor: pointer;
    user-select: none;
    border: 1px solid transparent;
    position: relative;
}

.node-content:hover {
    background: var(--item-hover);
}

.node-content.active {
    background: var(--item-active);
    color: var(--accent-color);
    font-weight: 500;
}

.node-content.marked {
    border-left: 3px solid var(--marked-border);
}

.tree-ghost-node {
    opacity: 0.5;
    font-style: italic;
}

.node-add-btn {
    opacity: 0;
    visibility: hidden;
    color: var(--text-secondary);
    padding: 2px 4px;
    border-radius: 4px;
    margin-left: auto;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.2s, background 0.2s;
}

.node-content.active .node-add-btn,
.node-content:hover .node-add-btn {
    opacity: 0.6;
    visibility: visible;
}

.node-add-btn:hover {
    background: rgba(0, 0, 0, 0.1);
    opacity: 1 !important;
    color: var(--accent-color);
}

.node-content.drag-middle {
    background: var(--item-hover);
    border: 1px dashed var(--accent-color);
}

.node-content.drag-top {
    border-top: 2px solid var(--accent-color);
}

.node-content.drag-bottom {
    border-bottom: 2px solid var(--accent-color);
}

.toggle-btn {
    width: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    margin-right: 4px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: transform 0.2s;
}

.toggle-btn:hover {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 2px;
}

.toggle-btn.expanded svg {
    transform: rotate(90deg);
}

.node-title {
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    font-size: 0.9rem;
    pointer-events: none;
    display: flex;
    align-items: center;
    gap: 6px;
}

.node-title svg {
    opacity: 0.7;
    flex-shrink: 0;
}

.node-content.active .node-title svg {
    opacity: 1;
}

/* ANIMAZIONE ESPANSIONE ALBERO */
.children-block {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.3s ease-in-out;
}

.children-block.expanded {
    grid-template-rows: 1fr;
}

.children-block-inner {
    overflow: hidden;
    padding-left: 10px;
    border-left: 1px solid var(--border-color);
    margin-left: 19px;
}

.hidden {
    display: none !important;
}

/* --- SOMMARIO DINAMICO TOC NELL'ALBERO LATERALE (H1, H2, H3) --- */
.toc-node {
    display: flex;
    align-items: center;
    padding: 3px 8px;
    cursor: pointer;
    color: var(--text-secondary);
    border-left: 1px solid transparent;
    transition: all 0.1s;
}

.toc-node:hover {
    background: var(--item-hover);
    color: var(--accent-color);
}

.toc-h1 {
    padding-left: 28px;
    font-size: 0.8rem;
    font-weight: 600;
}

.toc-h2 {
    padding-left: 40px;
    font-size: 0.75rem;
    font-weight: 500;
    opacity: 0.85;
}

.toc-h3 {
    padding-left: 52px;
    font-size: 0.72rem;
    font-weight: normal;
    opacity: 0.75;
}

.toc-icon {
    margin-right: 6px;
    font-size: 0.7rem;
    color: var(--accent-color);
    opacity: 0.5;
    font-family: monospace;
}

/* --- NOTIFICHE TOAST --- */
.toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
    pointer-events: none;
}

.toast-msg {
    background: var(--sidebar-bg);
    border-left: 4px solid var(--accent-color);
    color: var(--text-primary);
    padding: 12px 20px;
    border-radius: 6px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
    font-size: 0.85rem;
    font-weight: 500;
    transform: translateX(120%);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275), opacity 0.3s;
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 10px;
}

.toast-msg.show {
    transform: translateX(0);
}

/* --- STILI WIDGET BUTTON BAR --- */
.adv-action-button-wrapper .btn.action-btn-run { transition: all 0.2s ease; }
.adv-action-button-wrapper .btn.action-btn-run:hover {
    filter: brightness(1.15); transform: translateY(-2px); box-shadow: 0 6px 12px rgba(0,0,0,0.15) !important;
}
.adv-action-button-wrapper .btn:not(.action-btn-run) .adv-btn-icon-trigger:hover {
    background: rgba(0,0,0,0.2); box-shadow: 0 0 0 2px rgba(0,0,0,0.2);
}
summary::-webkit-details-marker { display: none; }
details > summary { list-style: none; }
.btn-color-swatch:hover { filter: brightness(1.2); transform: scale(1.1); }

/* --- STILI NODI ALBERO E RECORD --- */
:root {
    --record-color: #10b981; 
    --record-bg: rgba(16, 185, 129, 0.1);
    --view-color: #f59e0b;
}
[data-theme="dark"], [data-theme="notion-dark"] {
    --record-color: #34d399; 
    --record-bg: rgba(52, 211, 153, 0.15);
    --view-color: #fbbf24;
}

.node-content.record-note-node { 
    color: var(--record-color); 
    border-left: 2px solid var(--record-color) !important; 
    background: var(--record-bg) !important; 
}
.node-content.record-note-node .node-add-btn { display: none !important; }
.node-content.db-view-node { color: var(--text-primary); }
.node-content.db-view-node:hover { background: rgba(245, 158, 11, 0.1); }


/* =========================================================================
   TOUCH & TABLET OPTIMIZATIONS (Fat Finger & Hover Fallbacks)
   Queste regole si attivano solo se il dispositivo ha un touch screen primario.
   ========================================================================= */

@media (pointer: coarse) {
    /* 1. VISIBILITÀ ELEMENTI "HOVER-ONLY" */
    .node-add-btn,
    .widget-drag-handle,
    .widget-options-btn,
    .columns-opt-btn,
    .table-trigger-common {
        opacity: 0.6 !important;
        visibility: visible !important;
        pointer-events: auto !important;
        transform: scale(1) !important;
    }

    /* 2. ESPANSIONE AREE DI TOCCO (RESIZER E DRAG) */
    .adv-col-resizer,
    .std-col-resizer,
    .col-resizer {
        width: 20px !important;
        transform: translateX(10px) !important;
        background-color: transparent;
    }
    .adv-col-resizer:active,
    .std-col-resizer:active,
    .col-resizer:active {
        background-color: var(--accent-color) !important;
        opacity: 0.3 !important;
    }

    .toggle-btn {
        width: 30px !important; 
        height: 30px !important;
    }

    /* 3. AUMENTO SPAZIATURA MENU CONTESTUALI E TENDINE */
    .adv-menu-item {
        padding: 10px 14px !important; 
        margin-bottom: 4px !important;
    }
    
    .list-option-btn,
    .adv-dropdown-item {
        padding: 10px 12px !important;
    }

    .color-option, .color-swatch {
        width: 28px !important;
        height: 28px !important;
        margin: 2px !important;
    }

    /* 4. TOOLBAR MOBILE-FRIENDLY */
    .toolbar button, 
    .toolbar .btn-color-main {
        padding: 8px 10px !important;
    }
    
    .btn-color-arrow {
        width: 24px !important;
    }

    /* 5. GESTIONE MIGLIORE DELLO SCROLL ORIZZONTALE SUI WIDGET */
    .adv-scroll-container,
    .toolbar {
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none; 
    }
    .adv-scroll-container::-webkit-scrollbar,
    .toolbar::-webkit-scrollbar {
        display: none;
    }
}

/* =========================================================================
   TABLET PORTRAIT LAYOUT FIX (Larghezze 768px - 900px)
   ========================================================================= */
@media (max-width: 900px) {
    aside {
        position: absolute;
        top: 50px;
        left: 0;
        bottom: 0;
        height: calc(100dvh - 50px);
        z-index: 300;
        box-shadow: 4px 0 15px rgba(0, 0, 0, 0.1);
        transform: translateX(0);
        transition: transform 0.3s ease;
    }

    aside.collapsed {
        margin-left: 0;
        transform: translateX(-100%);
    }

    .brand span#fileNameDisplay {
        max-width: 200px;
    }
    
    .status-pill {
        display: none;
    }
}


@media (max-width: 768px) {
    aside {
        position: absolute;
        top: 50px;
        left: 0;
        bottom: 0;
        height: calc(100dvh - 50px);
        z-index: 300;
        box-shadow: 4px 0 15px rgba(0, 0, 0, 0.1);
        transform: translateX(0);
        transition: transform 0.3s ease;
    }

    aside.collapsed {
        margin-left: 0;
        transform: translateX(-100%);
    }

    .brand span#fileNameDisplay {
        max-width: 120px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    header {
        padding: 0 10px;
    }

    .status-pill {
        display: none;
    }

    .node-add-btn {
        opacity: 0.8;
        visibility: visible;
    }
}