/* LibreOffice Calc Style Theme for Foglio Elettronico Online */

:root, :root[data-theme="dark"] {
    --primary-color: #1b5e20;
    --primary-light: #2e7d32;
    --primary-dark: #003300;
    --accent-color: #4caf50;
    --bg-dark: #12181b;
    --bg-card: #1a232a;
    --text-main: #e2e8f0;
    --text-muted: #94a3b8;
    --border-color: #2d3748;
    --grid-line: #334155;
    --header-bg: #1e293b;
    --header-text: #cbd5e1;
    --active-cell-border: #48bb78;
    --active-cell-bg: rgba(72, 187, 120, 0.15);
    --cell-bg: #0f172a;
    --cell-text: #f1f5f9;
    --formula-bar-bg: #0f172a;
    --font-family: 'Segoe UI', system-ui, -apple-system, Roboto, sans-serif;
}

:root[data-theme="light"] {
    --primary-color: #2e7d32;
    --primary-light: #388e3c;
    --primary-dark: #1b5e20;
    --accent-color: #2e7d32;
    --bg-dark: #f8fafc;
    --bg-card: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border-color: #cbd5e1;
    --grid-line: #cbd5e1;
    --header-bg: #e2e8f0;
    --header-text: #334155;
    --active-cell-border: #16a34a;
    --active-cell-bg: rgba(22, 163, 74, 0.15);
    --cell-bg: #ffffff;
    --cell-text: #0f172a;
    --formula-bar-bg: #f1f5f9;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-dark);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
    transition: background-color 0.2s, color 0.2s;
}

/* App Header / Navbar */
.app-header {
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    padding: 0.6rem 1.2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.app-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    min-width: 0;
    flex: 1 1 auto;
}
.header-sheet-controls {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    min-width: 0;
    max-width: 42vw;
}
.header-sheet-controls .sheet-tabs {
    display: flex;
    align-items: center;
    gap: 0.2rem;
    min-width: 0;
    overflow-x: auto;
}
.header-sheet-controls .sheet-tab {
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.28rem 0.55rem;
    background: var(--bg-dark);
    color: var(--text-muted);
    cursor: pointer;
    white-space: nowrap;
    font-size: 0.78rem;
}
.header-sheet-controls .sheet-tab.active {
    background: var(--primary-light);
    color: #fff;
    border-color: var(--accent-color);
}
.header-sheet-controls .sheet-tab-actions {
    display: flex;
    gap: 0.2rem;
    flex-shrink: 0;
}
.header-sheet-controls .toolbar-btn {
    padding: 0.28rem 0.45rem;
    font-size: 0.75rem;
}

.app-logo {
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, #2e7d32, #81c784);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: #fff;
    font-size: 16px;
}

.document-title-input {
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-main);
    font-size: 1.2rem;
    font-weight: 600;
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    transition: all 0.2s;
}

.document-title-input:hover, .document-title-input:focus {
    background-color: rgba(150, 150, 150, 0.1);
    border-color: var(--border-color);
    outline: none;
}

.header-actions {
    display: flex;
    gap: 0.6rem;
    align-items: center;
}

.save-progress {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    min-width: 180px;
    color: var(--text-muted);
    font-size: 0.75rem;
}
.save-progress[hidden] { display: none; }
.save-progress-track {
    width: 92px;
    height: 6px;
    overflow: hidden;
    border-radius: 999px;
    background: var(--border-color);
}
.save-progress-bar {
    width: 0;
    height: 100%;
    border-radius: inherit;
    background: var(--accent-color);
    transition: width 0.15s ease;
}
.save-progress.server .save-progress-bar {
    width: 100%;
    background: linear-gradient(90deg, var(--accent-color) 25%, var(--primary-light) 50%, var(--accent-color) 75%);
    background-size: 220% 100%;
    animation: save-progress-pulse 1.1s linear infinite;
}
.save-progress.success .save-progress-bar { background: #22c55e; }
.save-progress.error .save-progress-bar { background: #ef4444; }
@keyframes save-progress-pulse {
    from { background-position: 100% 0; }
    to { background-position: -100% 0; }
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.45rem 0.9rem;
    font-size: 0.9rem;
    font-weight: 500;
    border-radius: 6px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
    text-decoration: none;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background-color: var(--primary-light);
    color: white;
}
.btn-primary:hover {
    background-color: var(--primary-color);
}

.btn-secondary {
    background-color: var(--header-bg);
    color: var(--text-main);
    border-color: var(--border-color);
}
.btn-secondary:hover {
    background-color: var(--border-color);
}

.btn-outline {
    background: transparent;
    border-color: var(--primary-light);
    color: var(--primary-light);
}
.btn-outline:hover {
    background: rgba(46, 125, 50, 0.1);
}

/* Theme Toggle Button */
.theme-toggle-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    transition: background 0.2s;
}
.theme-toggle-btn:hover {
    background: var(--border-color);
}

/* Toolbar */
.calc-toolbar {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 0.35rem 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.35rem;
    flex-wrap: wrap;
    align-content: center;
    overflow-x: visible;
    scrollbar-width: auto;
}

.toolbar-group {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    gap: 0.2rem;
    border-right: 1px solid var(--border-color);
    padding-right: 0.35rem;
}

.toolbar-btn {
    background: transparent;
    border: none;
    color: var(--text-main);
    padding: 0.4rem 0.65rem;
    border-radius: 5px;
    cursor: pointer;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 500;
}

.toolbar-btn:hover {
    background-color: rgba(150, 150, 150, 0.15);
}

.toolbar-btn.active {
    background-color: var(--primary-light);
    color: white;
}

.zoom-select {
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.35rem 0.5rem;
    border-radius: 4px;
    font-size: 0.85rem;
    cursor: pointer;
}

/* Formula Bar */
.alignment-controls {
    gap: 0.2rem;
}

.align-icon {
    width: 32px;
    min-width: 32px;
    height: 30px;
    padding: 0.25rem;
    justify-content: center;
}

.align-icon svg {
    width: 21px;
    height: 21px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.alignment-separator {
    width: 1px;
    height: 22px;
    margin: 0 0.2rem;
    background-color: var(--border-color);
}
.zoom-controls {
    gap: 0.1rem;
}

.zoom-controls .toolbar-btn {
    width: 26px;
    min-width: 26px;
    padding: 0.25rem;
}

.zoom-controls .zoom-select {
    width: 72px;
    padding: 0.25rem 0.3rem;
    font-size: 0.78rem;
}

.zoom-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    margin-right: 0.1rem;
}
.formula-bar-container {
    background-color: var(--formula-bar-bg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0.35rem 0.75rem;
    gap: 0.6rem;
}

.cell-address-box {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--primary-light);
    font-weight: bold;
    font-family: monospace;
    font-size: 1rem;
    padding: 0.4rem 0.75rem;
    border-radius: 4px;
    min-width: 70px;
    text-align: center;
}

.formula-icon {
    color: #a855f7;
    font-weight: bold;
    font-style: italic;
    font-family: serif;
    font-size: 1.25rem;
    padding: 0 0.4rem;
}

.formula-input {
    flex: 1;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-main);
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 1.05rem;
    padding: 0.4rem 0.75rem;
    border-radius: 4px;
}

.formula-input:focus {
    outline: none;
    border-color: var(--accent-color);
}

.sheet-tabs-bar {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    height: 34px;
    min-height: 34px;
    padding: 0 0.75rem;
    background: var(--bg-card);
    border-top: 1px solid var(--border-color);
}
.sheet-tabs-bar .sheet-tabs {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    min-width: 0;
    overflow-x: auto;
}
.sheet-tabs-bar .sheet-tab {
    height: 28px;
    box-sizing: border-box;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.2rem 0.65rem;
    background: var(--header-bg);
    color: var(--text-muted);
    cursor: pointer;
    white-space: nowrap;
    font-size: 0.8rem;
}
.sheet-tabs-bar .sheet-tab.active {
    background: var(--bg-dark);
    color: var(--text-main);
    border-color: var(--accent-color);
}
.sheet-tabs-bar .sheet-tab-actions {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    margin-left: auto;
    flex-shrink: 0;
}
.sheet-tabs-bar .toolbar-btn {
    height: 28px;
    padding: 0.2rem 0.55rem;
    font-size: 0.78rem;
}
.toolbar-btn.danger { color: #dc2626; }

.calc-table tbody tr[hidden] { display: none; }
/* Spreadsheet Grid Viewport */
.grid-viewport {
    flex: 1;
    min-height: 0;
    min-width: 0;
    overflow: auto;
    position: relative;
    background-color: var(--bg-dark);
}

.calc-table {
    border-collapse: collapse;
    table-layout: fixed;
    isolation: isolate;
    user-select: none;
    overflow-anchor: none;
}

.calc-table .grid-spacer {
    padding: 0 !important;
    border: 0 !important;
    min-width: 0 !important;
    max-width: none !important;
    font-size: 0 !important;
    line-height: 0 !important;
    pointer-events: none;
}
.calc-table thead { height: 36px; }
.calc-table thead th { height: 36px; z-index: 35; }
.calc-table thead th.frozen-column-header { z-index: 40; }
.calc-table .cell-content { pointer-events: none; }
.formula-warning {
    display: flex;
    flex-shrink: 0;
    align-items: center;
    gap: 1rem;
    padding: 0.45rem 0.75rem;
    color: #713f12;
    background: #fef3c7;
    font-size: 0.85rem;
}
.formula-warning[hidden] { display: none; }
.formula-warning button { flex-shrink: 0; }
.calc-table td.imported-result { box-shadow: inset -3px 3px 0 #f59e0b; }
.calc-table td { box-sizing: border-box; min-width: 0; }

.calc-table thead th {
    background-color: var(--header-bg);
    color: var(--header-text);
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid var(--border-color);
    text-align: center;
    padding: 0.35rem 0.4rem;
    position: sticky;
    top: 0;
    z-index: 35;
}

.col-resize-handle,
.row-resize-handle {
    position: absolute;
    z-index: 30;
}

.col-resize-handle {
    top: 0;
    right: -3px;
    width: 7px;
    height: 100%;
    cursor: col-resize;
}

.row-resize-handle {
    left: 0;
    bottom: -3px;
    width: 100%;
    height: 7px;
    cursor: row-resize;
}
.calc-table th.row-header {
    position: sticky;
    top: auto;
    left: 0;
    z-index: 12;
    box-sizing: border-box;
    width: 50px;
    min-width: 50px;
    max-width: 50px;
    padding-left: 0.25rem;
    padding-right: 0.25rem;
    overflow: hidden;
    background-color: var(--header-bg) !important;
    color: var(--header-text);
    background-clip: padding-box;
}

.calc-table th.corner-header {
    box-sizing: border-box;
    max-width: 50px;
}

.calc-table th.corner-header {
    top: 0;
    left: 0;
    z-index: 45;
    width: 50px;
}

/* Enlarged Cell Dimensions */
.calc-table td {
    border: 1px solid var(--grid-line);
    background-color: var(--cell-bg);
    color: var(--cell-text);
    font-size: 0.95rem;
    padding: 0.35rem 0.6rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    height: 36px; /* Increased from 28px */
    min-width: 0;
    width: 125px; /* Increased from 100px */
}

.calc-table td.selected-range {
    background-image: linear-gradient(rgba(76, 175, 80, 0.20), rgba(76, 175, 80, 0.20));
    outline: 2px solid rgba(46, 125, 50, 0.85);
    outline-offset: -1px;
}

.calc-table td.frozen-pane {
    /* Le celle bloccate devono essere opache e restare sopra al contenuto che scorre. */
    background-color: var(--cell-bg);
    background-clip: padding-box;
    z-index: 21;
    box-shadow: inset -1px 0 0 var(--grid-line), inset 0 -1px 0 var(--grid-line);
}
.calc-table td.frozen-pane.frozen-column {
    z-index: 22;
}

.calc-table th.frozen-column-header {
    box-shadow: inset -1px 0 0 var(--grid-line), inset 0 -1px 0 var(--grid-line);
}
.calc-table td.active-cell {
    outline: 2px solid var(--active-cell-border);
    outline-offset: -2px;
    background-color: var(--active-cell-bg);
}

.calc-table td input.cell-editor {
    width: 100%;
    height: 100%;
    border: none;
    background: transparent;
    color: inherit;
    font-family: inherit;
    font-size: inherit;
    outline: none;
}

/* Status Bar */
.status-bar {
    background-color: var(--header-bg);
    border-top: 1px solid var(--border-color);
    height: 34px;
    min-height: 34px;
    padding: 0 0.75rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    overflow: hidden;
}
.status-summary,
.status-zoom-select {
    width: 72px;
    height: 26px;
    padding: 0.2rem 0.3rem;
    font-size: 0.78rem;
    vertical-align: middle;
}.status-details {
    flex: 0 1 auto;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.status-sheet-controls {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    min-width: 0;
    flex: 1 1 auto;
}
.status-sheet-controls .sheet-tabs {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    min-width: 0;
    overflow-x: auto;
}
.status-sheet-controls .sheet-tab {
    height: 28px;
    box-sizing: border-box;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.2rem 0.65rem;
    background: var(--header-bg);
    color: var(--text-muted);
    cursor: pointer;
    white-space: nowrap;
    font-size: 0.8rem;
}
.status-sheet-controls .sheet-tab.active {
    background: var(--bg-dark);
    color: var(--text-main);
    border-color: var(--accent-color);
}
.status-sheet-controls .sheet-tab-actions {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex-shrink: 0;
}
.status-sheet-controls .toolbar-btn {
    height: 28px;
    padding: 0.2rem 0.55rem;
    font-size: 0.78rem;
}

/* Modals */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.modal-backdrop.show {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    padding: 1.5rem;
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.modal-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-main);
}

.close-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
}

.modal-body {
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    margin-bottom: 0.3rem;
    color: var(--text-muted);
}

.form-control {
    width: 100%;
    padding: 0.5rem 0.75rem;
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-main);
    font-size: 0.9rem;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-light);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

.badge {
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}
.badge-success { background-color: rgba(22, 163, 74, 0.2); color: #16a34a; }
.badge-warning { background-color: rgba(202, 138, 4, 0.2); color: #ca8a04; }

.calc-table th.selected-range-header {
    background-color: rgba(76, 175, 80, 0.38) !important;
    color: var(--header-text) !important;
    box-shadow: inset 0 0 0 2px rgba(46, 125, 50, 0.85);
}
.calc-table.is-resizing,
.calc-table.is-resizing * {
    cursor: col-resize !important;
    user-select: none !important;
}
.calc-table.moving-selection { cursor: grabbing !important; }
.calc-table td.move-target {
    background-color: rgba(33, 150, 243, 0.20) !important;
    outline: 2px dashed #2196f3;
    outline-offset: -2px;
}
/* Barra comandi adattiva: con zoom elevato i gruppi vanno a capo, senza sparire. */
@media (max-width: 1100px) {
    .calc-toolbar {
        gap: 0.25rem;
        padding: 0.35rem;
    }
    .toolbar-group {
        padding-right: 0.25rem;
        gap: 0.15rem;
    }
    .toolbar-btn {
        padding: 0.35rem 0.5rem;
    }
}

@media (max-width: 700px) {
    .app-header {
        flex-wrap: wrap;
        gap: 0.45rem;
    }
    .header-actions {
        width: 100%;
        flex-wrap: wrap;
        justify-content: flex-end;
        gap: 0.35rem;
    }
    .document-title-input {
        max-width: calc(100vw - 80px);
    }
    .toolbar-group {
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        padding: 0 0.25rem 0.25rem 0;
    }
}.font-size-input { width: 58px; min-width: 58px; padding-right: 0.2rem; }

.grid-context-menu {
    position: fixed;
    z-index: 2000;
    min-width: 205px;
    padding: 0.3rem;
    border: 1px solid var(--border-color);
    border-radius: 7px;
    background: var(--bg-card);
    box-shadow: 0 10px 28px rgba(0, 0, 0, 0.22);
}
.grid-context-menu[hidden] { display: none; }
.grid-context-menu button {
    display: block;
    width: 100%;
    padding: 0.5rem 0.65rem;
    border: 0;
    border-radius: 4px;
    background: transparent;
    color: var(--text-main);
    text-align: left;
    font: inherit;
    cursor: pointer;
}
.grid-context-menu button:hover { background: rgba(76, 175, 80, 0.16); }
.grid-context-menu button.danger { color: #dc2626; }
.grid-context-menu button.danger:hover { background: rgba(220, 38, 38, 0.12); }
.grid-context-menu hr {
    height: 1px;
    margin: 0.25rem 0;
    border: 0;
    background: var(--border-color);
}

.sheet-tab.sheet-tab-colored.active { box-shadow: inset 0 -3px currentColor; font-weight: 800; }
.sheet-tab:focus-visible { outline: 2px solid var(--accent-color); outline-offset: 2px; }