/* CSS RESET & VARIABLES */
:root {
    --bg-app: #f3f4f6;
    --bg-toolbar: rgba(255, 255, 255, 0.85);
    --bg-paper: #ffffff;
    --border-color: #e0e0e0;
    --border-hover: #c8c8c8;
    --accent-color: #0078d4;
    --accent-hover: #106ebe;
    --accent-light: #eff6fc;
    --text-primary: #242424;
    --text-secondary: #5c5c5c;
    --hover-bg: rgba(0, 0, 0, 0.04);
    --active-bg: rgba(0, 120, 212, 0.08);
    --active-text: #0078d4;
    --shadow-paper: 0 0 1px rgba(0, 0, 0, 0.12), 0 2px 8px rgba(0, 0, 0, 0.04), 0 12px 32px rgba(0, 0, 0, 0.08);
    --shadow-dialog: 0 24px 54px rgba(0, 0, 0, 0.15), 0 4px 16px rgba(0, 0, 0, 0.06);
    --transition-speed: 0.15s;
    --bg-dialog: #ffffff;
    --bg-dialog-footer: #fbfbfb;
}

body.dark-theme {
    --bg-app: #111111;
    --bg-toolbar: #202020;
    --bg-paper: #ffffff; /* Keep paper white */
    --border-color: #2d2d2d;
    --border-hover: #3d3d3d;
    --accent-color: #0078d4;
    --accent-hover: #106ebe;
    --accent-light: rgba(0, 120, 212, 0.15);
    --text-primary: #e3e3e3;
    --text-secondary: #9e9e9e;
    --hover-bg: rgba(255, 255, 255, 0.05);
    --active-bg: rgba(0, 120, 212, 0.2);
    --active-text: #0078d4;
    --bg-dialog: #252525;
    --bg-dialog-footer: #1f1f1f;
}

/* --- THEME ACCENT STYLE VARIANTS --- */

/* 1. Ocean Blue Theme */
body.theme-ocean {
    --bg-app: #eef2f7;
    --bg-toolbar: #f0f4f8;
    --accent-color: #005a9e;
    --accent-hover: #004578;
    --accent-light: #deecf9;
    --active-bg: rgba(0, 90, 158, 0.12);
    --active-text: #005a9e;
    --border-color: #c8d4e0;
}
body.theme-ocean.dark-theme {
    --bg-app: #0d1117;
    --bg-toolbar: #161b22;
    --bg-dialog: #161f30;
    --bg-dialog-footer: #121824;
    --accent-color: #1f85de;
    --border-color: #243247;
}

/* 2. Hacker Green Theme */
body.theme-hacker {
    --bg-app: #080c05;
    --bg-toolbar: #11160d;
    --border-color: #1b2616;
    --accent-color: #15b025;
    --accent-hover: #1cd42f;
    --accent-light: rgba(21, 176, 37, 0.15);
    --text-primary: #15b025;
    --text-secondary: #0f801a;
    --hover-bg: rgba(21, 176, 37, 0.1);
    --active-bg: rgba(21, 176, 37, 0.2);
    --active-text: #1cd42f;
    --bg-dialog: #10160d;
    --bg-dialog-footer: #0a0e08;
}
body.theme-hacker.dark-theme {
    --bg-app: #080c05;
    --bg-toolbar: #11160d;
    --border-color: #1b2616;
    --accent-color: #15b025;
    --accent-hover: #1cd42f;
    --accent-light: rgba(21, 176, 37, 0.15);
    --text-primary: #15b025;
    --text-secondary: #0f801a;
    --hover-bg: rgba(21, 176, 37, 0.1);
    --active-bg: rgba(21, 176, 37, 0.2);
    --active-text: #1cd42f;
    --bg-dialog: #10160d;
    --bg-dialog-footer: #0a0e08;
}

/* 3. Rose Gold Theme */
body.theme-rose {
    --bg-app: #faf5f5;
    --bg-toolbar: #fdfaf9;
    --accent-color: #b76e79;
    --accent-hover: #9c5c66;
    --accent-light: #f7e6e8;
    --active-bg: rgba(183, 110, 121, 0.12);
    --active-text: #b76e79;
    --border-color: #ebd7d9;
}
body.theme-rose.dark-theme {
    --bg-app: #1c1516;
    --bg-toolbar: #291f21;
    --bg-dialog: #302426;
    --bg-dialog-footer: #241a1c;
    --accent-color: #dca3ac;
    --border-color: #473639;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-app);
    color: var(--text-primary);
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition-speed);
}

/* HEADER & RIBBON SYSTEM */
.app-header {
    background-color: var(--bg-toolbar);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    z-index: 100;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.app-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background-color: var(--accent-light);
    border-radius: 6px;
    color: var(--accent-color);
    flex-shrink: 0;
}

.app-logo svg {
    width: 18px;
    height: 18px;
}

/* FILE DROPDOWN STYLINGS (Word Blue Style) */
.file-dropdown-container {
    position: relative;
    display: inline-block;
}

.file-dropdown-btn {
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    color: #ffffff;
    background-color: var(--accent-color);
    border: none;
    padding: 6px 16px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color var(--transition-speed);
}

.file-dropdown-btn:hover {
    background-color: var(--accent-hover);
}

.file-dropdown-menu {
    display: none;
    position: absolute;
    top: 36px;
    left: 0;
    background-color: var(--bg-dialog);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: var(--shadow-dialog);
    min-width: 230px;
    z-index: 600;
    padding: 6px 0;
    flex-direction: column;
}

.file-menu-item {
    display: flex;
    align-items: center;
    gap: 10px;
    width: 100%;
    padding: 8px 16px;
    border: none;
    background: transparent;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 13px;
    text-align: left;
    cursor: pointer;
    transition: background-color var(--transition-speed);
}

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

.file-menu-item svg {
    width: 16px;
    height: 16px;
    fill: currentColor;
    color: var(--text-secondary);
}

.file-menu-divider {
    height: 1px;
    background-color: var(--border-color);
    margin: 6px 0;
}

/* Navigation Tabs inside the Ribbon */
.ribbon-tabs {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: 12px;
}

.ribbon-tab {
    font-family: inherit;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-speed);
    position: relative;
}

.ribbon-tab:hover {
    background-color: var(--hover-bg);
    color: var(--text-primary);
}

.ribbon-tab.active {
    color: var(--accent-color);
    font-weight: 600;
    background-color: var(--active-bg);
}

.document-title-container {
    display: flex;
    flex-direction: column;
}

.document-title-input {
    font-family: 'Inter', sans-serif;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    background: transparent;
    border: 1px solid transparent;
    border-radius: 4px;
    padding: 2px 6px;
    width: 160px;
    outline: none;
    transition: all var(--transition-speed);
}

.document-title-input:hover {
    background-color: var(--hover-bg);
}

.document-title-input:focus {
    background-color: #ffffff;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(0, 120, 212, 0.2);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 6px;
}

.header-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-secondary);
}

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

.header-btn svg {
    width: 15px;
    height: 15px;
    fill: currentColor;
}

.header-btn.btn-danger-hover:hover {
    background-color: #fee8e6;
    color: #a80000;
    border-color: rgba(168, 0, 0, 0.1);
}

/* RIBBON PANELS CONTAINER */
.ribbon-panels-container {
    background-color: var(--bg-toolbar);
    border-bottom: 1px solid var(--border-color);
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.ribbon-panel {
    display: none;
    align-items: center;
    gap: 4px;
    padding: 6px 20px;
    flex-wrap: wrap;
    min-height: 48px;
    overflow-x: visible;
}

.ribbon-panel.active {
    display: flex;
}

.toolbar-group {
    display: flex;
    align-items: center;
    gap: 2px;
}

.toolbar-divider {
    width: 1px;
    height: 22px;
    background-color: var(--border-color);
    margin: 0 6px;
    flex-shrink: 0;
}

/* TOOLBAR BUTTONS & SELECTS */
.toolbar-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 4px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--text-primary);
    cursor: pointer;
    transition: all var(--transition-speed);
    position: relative;
    flex-shrink: 0;
}

.toolbar-btn:hover {
    background-color: var(--hover-bg);
}

.toolbar-btn:active {
    transform: scale(0.95);
}

.toolbar-btn.active {
    background-color: var(--active-bg);
    color: var(--active-text);
}

.toolbar-btn svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

#dictateBtn.active {
    color: #d83b01;
    background-color: rgba(216, 59, 1, 0.1);
    animation: pulseMic 1.5s infinite;
}

@keyframes pulseMic {
    0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(216, 59, 1, 0.4); }
    50% { transform: scale(1.05); box-shadow: 0 0 0 6px rgba(216, 59, 1, 0); }
}

.toolbar-select {
    font-family: 'Inter', sans-serif;
    font-size: 13px;
    color: var(--text-primary);
    background-color: rgba(255, 255, 255, 0.85);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 5px 24px 5px 8px;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%235c5c5c' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'></polyline></svg>");
    background-repeat: no-repeat;
    background-position: right 8px center;
    background-size: 10px;
    transition: all var(--transition-speed);
    outline: none;
    flex-shrink: 0;
}

.toolbar-select:hover {
    background-color: #f3f3f3;
    border-color: var(--border-hover);
}

.toolbar-select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(0, 120, 212, 0.2);
}

.toolbar-select.font-family {
    width: 120px;
}

/* Color Buttons Wrapper */
.color-btn-wrapper {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.color-bar {
    position: absolute;
    bottom: 4px;
    left: 5px;
    right: 5px;
    height: 4px;
    border-radius: 1px;
    box-shadow: 0 0 1px rgba(0, 0, 0, 0.2);
}

.color-btn-wrapper input[type="color"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
    border: none;
}

/* TABLE DROPDOWN PANEL */
.table-dropdown-panel {
    position: absolute;
    top: 36px;
    left: 0;
    background-color: var(--bg-dialog);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-shadow: var(--shadow-dialog);
    padding: 12px;
    z-index: 500;
    display: flex;
    flex-direction: column;
    gap: 8px;
    width: 180px;
}

.table-grid-selector {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 4px;
    width: 100%;
}

.grid-cell {
    width: 24px;
    height: 24px;
    border: 1px solid #c8c8c8;
    border-radius: 2px;
    cursor: pointer;
    transition: background-color var(--transition-speed);
}

body.dark-theme .grid-cell {
    border-color: #555555;
}

.grid-cell.highlighted {
    background-color: var(--accent-light);
    border-color: var(--accent-color);
}

.table-grid-label {
    font-size: 11px;
    color: var(--text-secondary);
    text-align: center;
    font-weight: 500;
}

.table-custom-inputs {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 6px;
    border-top: 1px solid var(--border-color);
    padding-top: 8px;
    margin-top: 4px;
}

.table-custom-inputs input {
    width: 40px;
    padding: 4px;
    border: 1px solid var(--border-color);
    border-radius: 3px;
    font-size: 11px;
    text-align: center;
    background-color: transparent;
    color: var(--text-primary);
}

.table-custom-inputs button {
    padding: 4px 8px;
    background-color: var(--accent-color);
    color: #ffffff;
    border: none;
    border-radius: 3px;
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color var(--transition-speed);
}

.table-custom-inputs button:hover {
    background-color: var(--accent-hover);
}

/* SPECIAL CHARACTER SYMBOL ITEMS */
.symbol-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    text-align: center;
}

.symbol-item {
    font-size: 20px;
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    background-color: var(--bg-dialog-footer);
    transition: all var(--transition-speed);
    user-select: none;
}

.symbol-item:hover {
    background-color: var(--active-bg);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

/* FLOATING FIND & REPLACE PANEL */
.find-replace-floating {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 300px;
    background-color: var(--bg-dialog);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: var(--shadow-dialog);
    z-index: 200;
    display: flex;
    flex-direction: column;
    font-family: inherit;
    transition: background-color var(--transition-speed);
}

.find-replace-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border-color);
    cursor: move;
    user-select: none;
}

.find-replace-card-header h4 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.panel-close-btn {
    background: transparent;
    border: none;
    font-size: 16px;
    cursor: pointer;
    color: var(--text-secondary);
}

.panel-close-btn:hover {
    color: var(--text-primary);
}

.find-replace-card-body {
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.card-input-group {
    position: relative;
    width: 100%;
}

.card-input-group input[type="text"] {
    width: 100%;
    padding: 6px 65px 6px 10px;
    font-size: 13px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    outline: none;
    background-color: transparent;
    color: var(--text-primary);
    transition: all var(--transition-speed);
}

.card-input-group input[type="text"]::placeholder {
    color: var(--text-secondary);
}

.card-input-group input[type="text"]:focus {
    border-color: var(--accent-color);
}

#replaceInputFloating {
    padding-right: 10px !important;
}

.find-match-index {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 10px;
    color: var(--text-secondary);
    pointer-events: none;
}

.card-checkbox-group {
    display: flex;
    align-items: center;
    font-size: 11px;
    color: var(--text-secondary);
    user-select: none;
}

.card-checkbox-group label {
    display: flex;
    align-items: center;
    gap: 4px;
    cursor: pointer;
}

.find-replace-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 12px;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-dialog-footer);
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
}

.footer-row-arrows {
    display: flex;
    gap: 4px;
}

.footer-row-actions {
    display: flex;
    gap: 6px;
}

.card-btn-small {
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    background-color: var(--bg-dialog);
    color: var(--text-primary);
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-speed);
}

.card-btn-small:hover {
    background-color: var(--hover-bg);
}

.card-btn {
    padding: 5px 10px;
    font-size: 12px;
    font-weight: 500;
    border: 1px solid var(--border-color);
    background-color: var(--bg-dialog);
    color: var(--text-primary);
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.card-btn:hover {
    background-color: var(--hover-bg);
}

.card-btn.primary {
    background-color: var(--accent-color);
    color: #ffffff;
    border-color: transparent;
}

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

/* HIGHLIGHT STYLING */
mark.find-highlight {
    background-color: rgba(255, 235, 59, 0.45);
    border-radius: 2px;
    transition: background-color var(--transition-speed);
    color: inherit;
}

mark.find-highlight-active {
    background-color: rgba(244, 67, 54, 0.5) !important;
    box-shadow: 0 0 4px rgba(244, 67, 54, 0.4);
}

/* THREE-PANE APP BODY */
.app-body {
    display: flex;
    flex-grow: 1;
    overflow: hidden;
    position: relative;
}

.document-container {
    flex-grow: 1;
    overflow-y: auto;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 40px 20px;
    background-color: var(--bg-app);
    scrollbar-width: thin;
    transition: background-color var(--transition-speed), padding var(--transition-speed);
}

.document-container::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

.document-container::-webkit-scrollbar-thumb {
    background-color: rgba(0, 0, 0, 0.15);
    border-radius: 4px;
}

/* Collapsible Sidebars */
.sidebar {
    width: 260px;
    flex-shrink: 0;
    background-color: var(--bg-toolbar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: width var(--transition-speed) ease, border-color var(--transition-speed);
    overflow: hidden;
    z-index: 80;
}

.sidebar.right-sidebar {
    border-right: none;
    border-left: 1px solid var(--border-color);
}

.sidebar.collapsed {
    width: 0;
    border-left: none;
    border-right: none;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    font-family: 'Outfit', sans-serif;
    flex-shrink: 0;
}

.sidebar-header h3 {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sidebar-close-btn {
    background: transparent;
    border: none;
    font-size: 14px;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 4px 8px;
    border-radius: 4px;
    transition: background var(--transition-speed);
}

.sidebar-close-btn:hover {
    background-color: var(--hover-bg);
    color: var(--text-primary);
}

.sidebar-content {
    padding: 16px;
    overflow-y: auto;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.sidebar-content::-webkit-scrollbar {
    width: 4px;
}

.sidebar-content::-webkit-scrollbar-thumb {
    background-color: rgba(0,0,0,0.1);
    border-radius: 2px;
}

.sidebar-action-btn {
    width: 100%;
    padding: 8px 12px;
    border-radius: 4px;
    background-color: var(--accent-color);
    color: #ffffff;
    border: none;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: background var(--transition-speed);
    flex-shrink: 0;
}

.sidebar-action-btn:hover {
    background-color: var(--accent-hover);
}

.toc-placeholder {
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
    margin-top: 20px;
}

/* Page Geometry & Visual Stacked Pages Layout */
.document-page {
    background-color: var(--bg-paper);
    width: 210mm !important;
    min-height: 297mm !important;
    margin: 20px auto !important;
    box-shadow: var(--shadow-paper);
    border: 1px solid rgba(0, 0, 0, 0.05);
    border-radius: 4px;
    position: relative;
    color: #242424;
    transition: box-shadow var(--transition-speed);
    display: flex;
    flex-direction: column;
    box-sizing: border-box;
    page-break-after: always;
}

.document-page.landscape {
    width: 297mm !important;
    min-height: 210mm !important;
}

.document-page.margin-normal {
    --page-side-margin: 96px; /* 1 inch */
}
.document-page.margin-narrow {
    --page-side-margin: 48px; /* 0.5 inch */
}
.document-page.margin-wide {
    --page-side-margin: 192px; /* 2 inches */
}

body.dark-theme .document-page {
    box-shadow: 0 0 1px rgba(255, 255, 255, 0.1), 0 4px 24px rgba(0, 0, 0, 0.6);
    border: 1px solid #2d2d2d;
}

/* DYNAMIC WATERMARK LAYERS */
.watermark-layer {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    pointer-events: none;
    overflow: hidden;
    z-index: 0;
}

.watermark-text {
    font-size: 85px;
    font-weight: 700;
    color: rgba(128, 128, 128, 0.12);
    text-transform: uppercase;
    transform: rotate(-45deg);
    user-select: none;
    white-space: nowrap;
}

/* HEADERS & FOOTERS REGIONS */
.page-header-area {
    padding: 30px var(--page-side-margin) 10px var(--page-side-margin);
    font-size: 12px;
    color: var(--text-secondary);
    border: 1px dashed rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    min-height: 48px;
    outline: none;
    margin: 15px 40px 5px 40px;
    position: relative;
    z-index: 2;
    transition: all var(--transition-speed);
}

/* SINGLE CANVAS VISUAL A4 PAGES BACKGROUND LAYOUTS */
.page-body-area {
    flex-grow: 1;
    padding: 20mm var(--page-side-margin) !important;
    outline: none;
    word-wrap: break-word;
    position: relative;
    z-index: 2;
    box-sizing: border-box;
    width: 210mm !important;
    min-height: 297mm !important;
    margin: 20px auto;
    background-color: var(--bg-paper);
    
    /* CSS Visual A4 Page lines with a grey horizontal gap of 11mm every 308mm */
    background-image: 
        linear-gradient(to bottom, transparent 296mm, rgba(0,0,0,0.06) 296mm, rgba(0,0,0,0.12) 296.8mm, #e5e7eb 297mm, #f3f4f6 297mm, #f3f4f6 307mm, #e5e7eb 307mm, rgba(0,0,0,0.12) 307.2mm, rgba(0,0,0,0.08) 308mm, transparent 308mm);
    background-size: 100% 308mm;
    background-repeat: repeat-y;
    box-shadow: var(--shadow-paper);
}

/* Marker Pen Cursor Style Override */
.page-body-area.marker-pen-active {
    cursor: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='%23eab308'><path d='M3 17.25V21h3.75L17.81 9.94l-3.75-3.75L3 17.25z'/></svg>") 0 20, crosshair !important;
}

.document-page.landscape .page-body-area {
    width: 297mm !important;
    min-height: 210mm !important;
    background-image: 
        linear-gradient(to bottom, transparent 209mm, rgba(0,0,0,0.06) 209mm, rgba(0,0,0,0.12) 209.8mm, #e5e7eb 210mm, #f3f4f6 210mm, #f3f4f6 220mm, #e5e7eb 220mm, rgba(0,0,0,0.12) 220.2mm, rgba(0,0,0,0.08) 221mm, transparent 221mm);
    background-size: 100% 221mm;
}

.page-footer-area {
    padding: 10px var(--page-side-margin) 30px var(--page-side-margin);
    font-size: 12px;
    color: var(--text-secondary);
    border: 1px dashed rgba(0, 0, 0, 0.1);
    border-radius: 4px;
    min-height: 48px;
    outline: none;
    margin: 5px 40px 15px 40px;
    position: relative;
    z-index: 2;
    transition: all var(--transition-speed);
}

body.dark-theme .page-header-area,
body.dark-theme .page-footer-area {
    border-color: rgba(255, 255, 255, 0.15);
}

/* Placeholders inside contenteditable elements */
[contenteditable="true"]:empty::before {
    content: attr(placeholder);
    color: var(--text-secondary);
    opacity: 0.65;
    pointer-events: none;
    display: block;
}

/* TEXT CANVAS FORMATTING */
.page-body-area p {
    margin: 0 0 1.2em 0;
    line-height: 1.6;
    font-size: 16px;
}

.page-body-area h1, .page-body-area h2, .page-body-area h3 {
    margin-top: 1.4em;
    margin-bottom: 0.6em;
    font-weight: 600;
    line-height: 1.25;
    color: #111111;
}

.page-body-area ul, .page-body-area ol {
    margin: 0 0 1.2em 2em;
    padding: 0;
}

.page-body-area li {
    margin-bottom: 0.5em;
    line-height: 1.6;
}

.page-body-area a {
    color: var(--accent-color);
    text-decoration: underline;
    cursor: pointer;
}

.page-body-area hr {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 2.2em 0;
}

.page-body-area img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1.5em auto;
    border-radius: 6px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    outline: none;
    transition: outline 0.1s;
}

.page-body-area img:focus, .page-body-area img:active {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
}

/* BLOCKQUOTE STYLING */
.page-body-area blockquote {
    border-left: 4px solid #a0a0a0;
    background-color: #f7f7f7;
    padding: 12px 20px;
    margin: 1.5em 0;
    font-style: italic;
    color: var(--text-secondary);
    border-radius: 0 4px 4px 0;
}

/* BULLETPROOF TABLES STYLING */
.page-body-area table {
    width: 100% !important;
    border-collapse: collapse;
    margin: 1.5em 0;
    table-layout: fixed !important;
    z-index: 2;
    position: relative;
}

.page-body-area th, .page-body-area td {
    border: 1px solid #888888 !important;
    padding: 10px 12px;
    min-height: 40px;
    vertical-align: top;
    outline: none;
    word-wrap: break-word;
}

.page-body-area td p {
    margin: 0;
    line-height: 1.6;
}

/* IMAGE RESIZE HANDLES & OVERLAYS */
.image-resizer-overlay {
    position: absolute;
    border: 2px solid var(--accent-color);
    pointer-events: none;
    box-sizing: border-box;
    z-index: 1000;
}

.resize-handle {
    position: absolute;
    width: 10px;
    height: 10px;
    background-color: #ffffff;
    border: 2px solid var(--accent-color);
    border-radius: 2px;
    pointer-events: auto;
    box-sizing: border-box;
}

.resize-handle.top-left { top: -6px; left: -6px; cursor: nwse-resize; }
.resize-handle.top-right { top: -6px; right: -6px; cursor: nesw-resize; }
.resize-handle.bottom-left { bottom: -6px; left: -6px; cursor: nesw-resize; }
.resize-handle.bottom-right { bottom: -6px; right: -6px; cursor: nwse-resize; }

/* FLOATING REAL-TIME STATS WIDGET */
.floating-stats-widget {
    position: fixed;
    bottom: 50px;
    right: 40px;
    background-color: rgba(32, 32, 32, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #ffffff;
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.25);
    z-index: 900;
    pointer-events: none;
    transition: opacity var(--transition-speed) ease;
}

body.focus-mode-active .floating-stats-widget {
    opacity: 0.12;
}

body.focus-mode-active .floating-stats-widget:hover {
    opacity: 0.85;
}

/* INTERACTIVE CHECKLIST CHECKBOX STYLING */
.page-body-area ul.checklist {
    list-style: none !important;
    padding-left: 1.2em;
    margin-left: 0;
}

.page-body-area ul.checklist li {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 0.5em;
}

.page-body-area ul.checklist li input[type="checkbox"] {
    cursor: pointer;
    width: 16px;
    height: 16px;
    margin: 0;
    flex-shrink: 0;
}

/* COMMENTS REVIEW LAYOUTS */
mark.comment-highlight {
    background-color: rgba(255, 212, 0, 0.35);
    border-bottom: 2px dashed #ffb900;
    cursor: pointer;
    transition: background-color var(--transition-speed);
}

mark.comment-highlight.active {
    background-color: rgba(255, 140, 0, 0.45);
    border-bottom-color: #f7630c;
}

mark.comment-highlight.flash {
    animation: flashHighlight 1.5s ease;
}

@keyframes flashHighlight {
    0%, 100% { background-color: rgba(255, 212, 0, 0.35); }
    50% { background-color: rgba(216, 59, 1, 0.5); }
}

.comment-card {
    background-color: var(--bg-dialog);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    box-shadow: 0 2px 6px rgba(0,0,0,0.02);
    transition: all var(--transition-speed);
    cursor: pointer;
    user-select: none;
}

.comment-card:hover {
    border-color: var(--border-hover);
    box-shadow: 0 4px 12px rgba(0,0,0,0.04);
}

.comment-card.active {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 1px var(--accent-color), 0 4px 16px rgba(0, 0, 0, 0.06);
}

.comment-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
    color: var(--text-secondary);
}

.comment-card-delete {
    background: transparent;
    border: none;
    color: #a80000;
    cursor: pointer;
    font-size: 11px;
    font-weight: 500;
}

.comment-card-delete:hover {
    text-decoration: underline;
}

.comment-card-body textarea {
    width: 100%;
    min-height: 50px;
    max-height: 120px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 6px;
    font-family: inherit;
    font-size: 12px;
    resize: vertical;
    background-color: transparent;
    color: var(--text-primary);
    outline: none;
}

.comment-card-body textarea:focus {
    border-color: var(--accent-color);
}

/* VERSION LIST ITEMS */
.version-item {
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-speed);
    display: flex;
    flex-direction: column;
    gap: 4px;
    background-color: var(--bg-dialog-footer);
    user-select: none;
}

.version-item:hover {
    border-color: var(--border-hover);
    background-color: var(--hover-bg);
}

.version-item.active {
    border-color: var(--accent-color);
    background-color: var(--active-bg);
    box-shadow: 0 0 0 1px var(--accent-color);
}

.version-item-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
}

.version-item-time {
    font-size: 11px;
    color: var(--text-secondary);
}

.version-item-meta {
    font-size: 10px;
    color: var(--text-secondary);
    font-style: italic;
}

/* OUTLINE TABLE OF CONTENTS */
.toc-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.toc-item {
    font-size: 13px;
    color: var(--text-primary);
    cursor: pointer;
    padding: 6px 8px;
    border-radius: 4px;
    transition: background var(--transition-speed), color var(--transition-speed);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: block;
}

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

.toc-item.h1 {
    font-weight: 600;
    padding-left: 8px;
}

.toc-item.h2 {
    padding-left: 20px;
    color: var(--text-secondary);
}

.toc-item.h3 {
    padding-left: 32px;
    color: var(--text-secondary);
    font-size: 12px;
    font-style: italic;
}

/* NOTION-STYLE SLASH COMMAND POPUP */
.slash-item {
    color: var(--text-primary);
    transition: background var(--transition-speed);
    user-select: none;
}

.slash-item:hover, .slash-item.active {
    background-color: var(--hover-bg);
    color: var(--accent-color);
    font-weight: 500;
}

/* ZEN FOCUS MODE STYLING */
body.focus-mode-active .app-header,
body.focus-mode-active .app-status-bar,
body.focus-mode-active .sidebar,
body.focus-mode-active #findReplacePanel {
    display: none !important;
}

body.focus-mode-active .app-body {
    height: 100vh;
}

body.focus-mode-active .document-container {
    padding: 20px 0;
    background-color: #f7f7f7;
    height: 100vh;
    width: 100vw;
    justify-content: center;
    align-items: center;
}

body.focus-mode-active .page-body-area {
    margin: 0 !important;
    box-shadow: 0 4px 32px rgba(0, 0, 0, 0.15) !important;
}

/* STATUS BAR & BREADCRUMB TRAILS */
.app-status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 20px;
    background-color: var(--bg-toolbar);
    border-top: 1px solid var(--border-color);
    font-size: 12px;
    color: var(--text-secondary);
    flex-shrink: 0;
    user-select: none;
    z-index: 90;
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.status-left, .status-right {
    display: flex;
    align-items: center;
    gap: 12px;
}

.status-divider {
    width: 1px;
    height: 12px;
    background-color: var(--border-color);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
    transition: opacity 0.3s ease;
}

.status-indicator.saving {
    color: var(--accent-color);
}

/* DOM Breadcrumb Trail Items Hover */
.breadcrumb-trail span {
    transition: color var(--transition-speed);
}
.breadcrumb-trail span:hover {
    color: var(--accent-color);
}

/* MODAL OVERLAYS & DIALOGS */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-dialog {
    background-color: var(--bg-dialog);
    color: var(--text-primary);
    border-radius: 8px;
    box-shadow: var(--shadow-dialog);
    width: 440px;
    max-width: 90%;
    display: none;
    flex-direction: column;
    overflow: hidden;
    transform: translateY(20px) scale(0.98);
    transition: transform 0.2s cubic-bezier(0.1, 0.9, 0.2, 1), background-color var(--transition-speed);
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.modal-overlay.active .modal-dialog.active {
    display: flex;
    transform: translateY(0) scale(1);
}

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
}

.modal-close-btn {
    background: transparent;
    border: none;
    font-size: 20px;
    cursor: pointer;
    color: var(--text-secondary);
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: background var(--transition-speed);
}

.modal-close-btn:hover {
    background-color: var(--hover-bg);
    color: var(--text-primary);
}

.modal-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    padding: 0 20px;
    background-color: var(--bg-dialog-footer);
}

.tab-btn {
    background: transparent;
    border: none;
    padding: 10px 16px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    color: var(--text-secondary);
    border-bottom: 2px solid transparent;
    transition: all var(--transition-speed);
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}

.modal-body {
    padding: 20px;
    overflow-y: auto;
    max-height: 380px;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.modal-footer {
    padding: 14px 20px;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-dialog-footer);
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.modal-btn {
    padding: 8px 16px;
    border-radius: 4px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-speed);
    border: 1px solid transparent;
}

.modal-btn.primary {
    background-color: var(--accent-color);
    color: #ffffff;
}

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

.modal-btn.primary.danger {
    background-color: #d83b01;
}

.modal-btn.primary.danger:hover {
    background-color: #b83201;
}

.modal-btn.secondary {
    background-color: transparent;
    border-color: var(--border-color);
    color: var(--text-primary);
}

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

.input-group {
    margin-bottom: 14px;
}

.input-group label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 5px;
    color: var(--text-secondary);
}

.input-group input[type="text"] {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid var(--border-color);
    border-bottom: 2px solid var(--text-secondary);
    border-radius: 4px;
    font-family: inherit;
    font-size: 13px;
    outline: none;
    background-color: transparent;
    color: var(--text-primary);
    transition: all var(--transition-speed);
}

.input-group input[type="text"]:focus {
    border-bottom-color: var(--accent-color);
}

/* Dark Theme overrides */
body.dark-theme input[type="text"],
body.dark-theme input[type="number"] {
    background-color: #2b2b2b;
    color: #ffffff;
    border-color: #404040;
    border-bottom-color: #606060;
}

body.dark-theme input[type="text"]:focus,
body.dark-theme input[type="number"]:focus {
    border-bottom-color: var(--accent-color);
}

body.dark-theme select.toolbar-select {
    background-color: #2b2b2b;
    color: #ffffff;
    border-color: #404040;
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23f5f5f5' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'><polyline points='6 9 12 15 18 9'></polyline></svg>");
}

body.dark-theme .document-title-input:focus {
    background-color: #252525;
    color: #ffffff;
}

body.dark-theme .modal-dialog {
    background-color: var(--bg-dialog);
    color: var(--text-primary);
}

body.dark-theme .modal-header,
body.dark-theme .modal-tabs,
body.dark-theme .modal-footer {
    border-color: var(--border-color);
    background-color: var(--bg-dialog-footer);
}

body.dark-theme .tab-btn {
    color: var(--text-secondary);
}

body.dark-theme .tab-btn.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}

/* Drag & Drop zones */
.drag-drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: 6px;
    padding: 24px;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-speed);
    background-color: var(--bg-dialog-footer);
}

.drag-drop-zone:hover, .drag-drop-zone.dragover {
    border-color: var(--accent-color);
    background-color: var(--accent-light);
}

.drag-drop-zone svg {
    width: 32px;
    height: 32px;
    fill: var(--text-secondary);
    margin-bottom: 8px;
}

.drag-drop-zone p {
    font-size: 12px;
    color: var(--text-secondary);
}

.drag-drop-zone .browse-text {
    color: var(--accent-color);
    font-weight: 600;
    text-decoration: underline;
}

.image-preview-container {
    margin-top: 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-dialog-footer);
    overflow: hidden;
}

.image-preview-container img {
    max-width: 100%;
    max-height: 100%;
    display: none;
    object-fit: contain;
}

.preview-placeholder {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Document Minimap Sidebar styling */
.minimap-sidebar {
    width: 140px;
    background-color: var(--bg-toolbar);
    border-left: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    flex-shrink: 0;
    transition: width var(--transition-speed) ease;
    z-index: 85;
}

.minimap-sidebar.collapsed {
    width: 0;
    border-left: none;
}

.mini-page-preview {
    margin-bottom: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.12);
    border: 1px solid var(--border-color);
    border-radius: 2px;
    transition: transform var(--transition-speed);
    overflow: hidden;
}

.mini-page-preview:hover {
    transform: scale(1.03);
    border-color: var(--accent-color);
}

/* Template Card Items Grid */
.template-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    width: 100%;
}

.template-card {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    background-color: var(--bg-dialog-footer);
    transition: all var(--transition-speed);
    user-select: none;
}

.template-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.06);
}

.template-card-preview {
    width: 80px;
    height: 100px;
    border: 1px solid #ccc;
    background-color: #ffffff;
    box-shadow: 0 2px 6px rgba(0,0,0,0.05);
    margin-bottom: 8px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 6px;
    overflow: hidden;
}

.template-card-title {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-primary);
    text-align: center;
}

/* RESPONSIVE SCALING */
@media (max-width: 840px) {
    .document-container {
        padding: 16px 8px;
    }
    .page-body-area {
        width: 100% !important;
        min-height: auto !important;
        padding: 12mm !important;
        background-image: none !important; /* Revert back to plain layout if mobile screen */
        margin: 0 !important;
    }
    .page-header-area, .page-footer-area {
        margin: 5px 10px;
    }
    .header-top {
        padding: 8px 10px;
    }
}

@media (max-width: 580px) {
    .header-right .header-btn span {
        display: none;
    }
    .header-right .header-btn {
        padding: 6px;
    }
    .document-title-input {
        width: 130px;
    }
}

/* PRINT GEOMETRIES */
@media print {
    body {
        background-color: #ffffff !important;
        margin: 0 !important;
        padding: 0 !important;
    }

    .app-header, .app-status-bar, .modal-overlay, .find-replace-floating, .sidebar, #slashCommandMenu, #imageWrapToolbar {
        display: none !important;
    }

    .document-container {
        padding: 0 !important;
        margin: 0 !important;
        overflow: visible !important;
        background: transparent !important;
        display: block !important;
    }

    .page-body-area {
        box-shadow: none !important;
        border: none !important;
        border-radius: 0 !important;
        padding: 0 !important;
        width: 100% !important;
        min-height: auto !important;
        margin: 0 !important;
        word-wrap: break-word;
        background: none !important;
    }

    .page-header-area, .page-footer-area {
        border: none !important;
        margin: 0 !important;
    }

    p, h1, h2, h3, img, li, tr {
        page-break-inside: avoid;
    }
}

/* MANUAL PAGE BREAK VISUALS */
.manual-page-break {
    page-break-after: always !important;
    break-after: page !important;
    height: 30px;
    border: none;
    margin: 30px 0;
    background: repeating-linear-gradient(45deg, var(--border-color), var(--border-color) 10px, transparent 10px, transparent 20px);
    position: relative;
    contenteditable: false;
    user-select: none;
}

.manual-page-break::after {
    content: "PAGE BREAK";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--bg-paper);
    padding: 2px 10px;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 2px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}