/* =====================================================================
   OMM – Online Mail Merge & Document Management System
   Custom Stylesheet
   ===================================================================== */

/* ─── Light Mode (Default) ─────────────────────────────────── */
:root,
[data-theme="light"] {
    /* ── Color Palette ── */
    --omm-primary:       #4f46e5;
    --omm-primary-light: #6366f1;
    --omm-primary-dark:  #3730a3;
    --omm-accent:        #0284c7;
    --omm-accent-light:  #0ea5e9;
    --omm-success:       #059669;
    --omm-warning:       #d97706;
    --omm-danger:        #dc2626;

    /* ── Surfaces ── */
    --omm-bg:            #f8fafc;
    --omm-bg-alt:        #ffffff;
    --omm-surface:       #ffffff;
    --omm-card-bg:       #ffffff;
    --omm-surface-hover: #f1f5f9;
    --omm-border:        #e2e8f0;
    --omm-border-subtle: #f8fafc;

    /* ── Text ── */
    --omm-text:          #0f172a;
    --omm-text-muted:    #64748b;
    --omm-text-dim:      #94a3b8;

    /* ── Layout & Surfaces ── */
    --sidebar-bg:        #ffffff;
    --sidebar-border:    #e2e8f0;
    --topbar-bg:         rgba(255, 255, 255, 0.88);
    --input-bg:          #ffffff;
    --input-border:      #cbd5e1;
    --table-header-bg:   rgba(79, 70, 229, 0.06);
    --table-header-color:#4338ca;
    --table-stripe:      rgba(241, 245, 249, 0.6);
    --modal-close-invert: 0;

    /* ── Layout ── */
    --sidebar-width:     260px;
    --sidebar-collapsed:  0px;
    --topbar-height:     64px;

    /* ── Transitions ── */
    --transition-fast:   0.15s ease;
    --transition-base:   0.25s ease;
    --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);

    /* ── Radius ── */
    --radius-sm:  6px;
    --radius-md:  10px;
    --radius-lg:  16px;
    --radius-xl:  20px;

    /* ── Shadows ── */
    --shadow-sm:    0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.03);
    --shadow-md:    0 4px 6px -1px rgba(0,0,0,0.06), 0 2px 4px -2px rgba(0,0,0,0.04);
    --shadow-lg:    0 10px 25px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
    --shadow-glow:  0 0 20px rgba(99,102,241,0.15);
}

/* ─── Dark Mode ─────────────────────────────────────────────── */
[data-theme="dark"] {
    /* ── Color Palette ── */
    --omm-primary:       #6366f1;
    --omm-primary-light: #818cf8;
    --omm-primary-dark:  #4338ca;
    --omm-accent:        #06b6d4;
    --omm-accent-light:  #22d3ee;
    --omm-success:       #10b981;
    --omm-warning:       #f59e0b;
    --omm-danger:        #ef4444;

    /* ── Surfaces ── */
    --omm-bg:            #0f172a;
    --omm-bg-alt:        #1e293b;
    --omm-surface:       #1e293b;
    --omm-card-bg:       #1e293b;
    --omm-surface-hover: #334155;
    --omm-border:        #334155;
    --omm-border-subtle: #1e293b;

    /* ── Text ── */
    --omm-text:          #f1f5f9;
    --omm-text-muted:    #94a3b8;
    --omm-text-dim:      #64748b;

    /* ── Layout & Surfaces ── */
    --sidebar-bg:        linear-gradient(180deg, #0f172a 0%, #1e293b 100%);
    --sidebar-border:    #334155;
    --topbar-bg:         rgba(15, 23, 42, 0.88);
    --input-bg:          #0f172a;
    --input-border:      #334155;
    --table-header-bg:   rgba(99, 102, 241, 0.15);
    --table-header-color:#818cf8;
    --table-stripe:      rgba(255, 255, 255, 0.02);
    --modal-close-invert: 1;

    /* ── Shadows ── */
    --shadow-sm:    0 1px 3px rgba(0,0,0,0.3);
    --shadow-md:    0 4px 14px rgba(0,0,0,0.3);
    --shadow-lg:    0 10px 30px rgba(0,0,0,0.4);
    --shadow-glow:  0 0 20px rgba(99,102,241,0.3);
}

/* =====================================================================
   BASE
   ===================================================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    font-family: 'Noto Sans Thai', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 0.925rem;
    line-height: 1.6;
    background: var(--omm-bg);
    color: var(--omm-text);
    overflow-x: hidden;
    transition: background-color var(--transition-base), color var(--transition-base);
}

/* =====================================================================
   SIDEBAR
   ===================================================================== */
.omm-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    border-right: 1px solid var(--omm-border);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-smooth), background var(--transition-base), border-color var(--transition-base);
    overflow-y: auto;
}

.omm-sidebar.collapsed {
    transform: translateX(calc(-1 * var(--sidebar-width)));
}

.sidebar-brand {
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    border-bottom: 1px solid var(--omm-border);
}

.brand-icon {
    font-size: 28px;
    color: var(--omm-primary-light);
    filter: drop-shadow(0 0 8px rgba(79,70,229,0.5));
}

.brand-text {
    font-size: 1.25rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--omm-primary-light), var(--omm-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.brand-subtitle {
    width: 100%;
    display: block;
    font-size: 0.7rem;
    color: var(--omm-text-muted);
    margin-top: -4px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.sidebar-nav {
    padding: 12px 0;
    flex: 1;
}

.nav-section {
    padding: 16px 24px 6px;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--omm-text-dim);
    letter-spacing: 1.5px;
    text-transform: uppercase;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 24px;
    color: var(--omm-text-muted);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-fast);
    position: relative;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    color: var(--omm-text);
    background: var(--omm-surface-hover);
    border-left-color: var(--omm-primary-light);
}

.nav-item.active {
    color: var(--omm-primary-light);
    background: rgba(79,70,229,0.1);
    border-left-color: var(--omm-primary);
}

.nav-item.active::after {
    content: '';
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 20px;
    background: var(--omm-primary);
    border-radius: 3px 0 0 3px;
}

.nav-item i {
    font-size: 1.15rem;
    width: 22px;
    text-align: center;
}

/* =====================================================================
   MAIN AREA
   ===================================================================== */
.omm-main {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    transition: margin-left var(--transition-smooth);
}

.sidebar-collapsed ~ .omm-main,
.omm-sidebar.collapsed ~ .omm-main {
    margin-left: 0;
}

/* ── Top Bar ── */
.omm-topbar {
    position: sticky;
    top: 0;
    height: var(--topbar-height);
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 0 24px;
    background: var(--topbar-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--omm-border);
    z-index: 900;
    transition: background var(--transition-base), border-color var(--transition-base);
}

.btn-theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 1px solid var(--omm-border);
    background: var(--omm-surface);
    color: var(--omm-text-muted);
    cursor: pointer;
    font-size: 1.05rem;
    transition: all var(--transition-fast);
}

.btn-theme-toggle:hover {
    background: var(--omm-surface-hover);
    color: var(--omm-primary-light);
    border-color: var(--omm-primary-light);
    transform: rotate(15deg) scale(1.06);
    box-shadow: var(--shadow-sm);
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--omm-text-muted);
    font-size: 1.4rem;
    cursor: pointer;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.sidebar-toggle:hover {
    color: var(--omm-text);
    background: var(--omm-surface-hover);
}

.topbar-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin: 0;
    flex: 1;
    color: var(--omm-text);
}

.topbar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.pulse-dot {
    font-size: 6px;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%      { opacity: 0.3; }
}

/* ── Page Content ── */
.omm-content {
    padding: 24px;
}

/* =====================================================================
   CARDS
   ===================================================================== */
.omm-card {
    background: var(--omm-surface);
    border: 1px solid var(--omm-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    transition: all var(--transition-base);
}

.omm-card:hover {
    border-color: var(--omm-primary);
    box-shadow: var(--shadow-glow);
}

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

.omm-card-header h2 {
    font-size: 1.15rem;
    font-weight: 600;
    margin: 0;
}

/* ── Stat Cards ── */
.stat-card {
    background: var(--omm-surface);
    border: 1px solid var(--omm-border);
    border-radius: var(--radius-lg);
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.stat-card.stat-primary::before   { background: linear-gradient(90deg, var(--omm-primary), var(--omm-primary-light)); }
.stat-card.stat-accent::before    { background: linear-gradient(90deg, var(--omm-accent), var(--omm-accent-light)); }
.stat-card.stat-success::before   { background: linear-gradient(90deg, var(--omm-success), #34d399); }
.stat-card.stat-warning::before   { background: linear-gradient(90deg, var(--omm-warning), #fbbf24); }

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
}

.stat-primary .stat-icon  { background: rgba(79,70,229,0.15);  color: var(--omm-primary-light); }
.stat-accent .stat-icon   { background: rgba(6,182,212,0.15);  color: var(--omm-accent-light); }
.stat-success .stat-icon  { background: rgba(16,185,129,0.15); color: var(--omm-success); }
.stat-warning .stat-icon  { background: rgba(245,158,11,0.15); color: var(--omm-warning); }

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
    line-height: 1.2;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--omm-text-muted);
}

/* =====================================================================
   BUTTONS
   ===================================================================== */
.btn-omm {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 18px;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.875rem;
    border: none;
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-omm-primary {
    background: linear-gradient(135deg, var(--omm-primary), var(--omm-primary-dark));
    color: white;
    box-shadow: 0 2px 10px rgba(79,70,229,0.3);
}

.btn-omm-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(79,70,229,0.4);
    color: white;
}

.btn-omm-accent {
    background: linear-gradient(135deg, var(--omm-accent), #0891b2);
    color: white;
    box-shadow: 0 2px 10px rgba(6,182,212,0.3);
}

.btn-omm-accent:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(6,182,212,0.4);
    color: white;
}

.btn-omm-success {
    background: linear-gradient(135deg, var(--omm-success), #059669);
    color: white;
}

.btn-omm-danger {
    background: linear-gradient(135deg, var(--omm-danger), #dc2626);
    color: white;
}

.btn-omm-info {
    background: linear-gradient(135deg, #0284c7, #0ea5e9);
    color: white;
    box-shadow: 0 2px 8px rgba(2, 132, 199, 0.3);
}

.btn-omm-info:hover {
    background: linear-gradient(135deg, #0369a1, #0284c7);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(2, 132, 199, 0.4);
}

.btn-omm-warning {
    background: linear-gradient(135deg, #d97706, #b45309);
    color: white;
    box-shadow: 0 2px 8px rgba(217, 119, 6, 0.3);
}

.btn-omm-warning:hover {
    background: linear-gradient(135deg, #b45309, #92400e);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(217, 119, 6, 0.4);
}

.btn-omm-ghost {
    background: transparent;
    color: var(--omm-text-muted);
    border: 1px solid var(--omm-border);
}

.btn-omm-ghost:hover {
    background: var(--omm-surface-hover);
    color: var(--omm-text);
    border-color: var(--omm-primary-light);
}

.btn-icon {
    background: none;
    border: none;
    padding: 0;
    cursor: pointer;
    color: inherit;
}

/* =====================================================================
   TABLES
   ===================================================================== */
.table-dark-custom {
    --bs-table-bg:           var(--omm-surface);
    --bs-table-border-color: var(--omm-border);
    --bs-table-hover-bg:     var(--omm-surface-hover);
    --bs-table-color:        var(--omm-text);
    --bs-table-striped-bg:   var(--table-stripe);
}

.table-dark-custom thead th {
    background: var(--table-header-bg);
    color: var(--table-header-color);
    font-weight: 600;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    border-bottom: 2px solid var(--omm-primary);
    white-space: nowrap;
}

/* DataTables theme overrides */
.dataTables_wrapper .dataTables_length select,
.dataTables_wrapper .dataTables_filter input {
    background: var(--input-bg) !important;
    color: var(--omm-text) !important;
    border: 1px solid var(--input-border) !important;
    border-radius: var(--radius-sm) !important;
    padding: 6px 12px !important;
}

.dataTables_wrapper .dataTables_length label,
.dataTables_wrapper .dataTables_filter label,
.dataTables_wrapper .dataTables_info {
    color: var(--omm-text-muted) !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    color: var(--omm-text) !important;
    background: var(--omm-surface) !important;
    border: 1px solid var(--omm-border) !important;
    border-radius: var(--radius-sm) !important;
    margin: 0 2px !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background: var(--omm-primary) !important;
    color: white !important;
    border-color: var(--omm-primary) !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button:hover {
    background: var(--omm-surface-hover) !important;
    color: var(--omm-text) !important;
}

/* =====================================================================
   FORMS
   ===================================================================== */
.form-control-dark,
.form-select-dark {
    background: var(--input-bg);
    color: var(--omm-text);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-sm);
    padding: 8px 14px;
    transition: all var(--transition-fast);
}

.form-control-dark:focus,
.form-select-dark:focus {
    background: var(--input-bg);
    color: var(--omm-text);
    border-color: var(--omm-primary);
    box-shadow: 0 0 0 3px rgba(79,70,229,0.15);
    outline: none;
}

.form-control-dark::placeholder {
    color: var(--omm-text-dim);
}

.form-label-dark {
    color: var(--omm-text-muted);
    font-weight: 500;
    font-size: 0.85rem;
    margin-bottom: 6px;
}

.form-control-dark:disabled,
.form-control-dark[readonly],
.form-select-dark:disabled {
    background-color: var(--omm-surface-hover, #f1f5f9) !important;
    border-color: var(--omm-border) !important;
    color: var(--omm-text) !important;
    opacity: 0.88;
    cursor: default;
}

/* =====================================================================
   MODALS
   ===================================================================== */
.modal-content,
.modal-dark .modal-content {
    background-color: var(--omm-surface, #ffffff) !important;
    background: var(--omm-surface, #ffffff) !important;
    border: 1px solid var(--omm-border, #e2e8f0);
    border-radius: var(--radius-lg, 16px);
    box-shadow: var(--shadow-lg, 0 10px 25px rgba(0,0,0,0.15));
    color: var(--omm-text, #0f172a);
}

.modal-dark .modal-header {
    border-bottom: 1px solid var(--omm-border);
    padding: 16px 24px;
}

.modal-dark .modal-title {
    color: var(--omm-text);
    font-weight: 600;
}

.modal-dark .modal-body {
    padding: 24px;
}

.modal-dark .modal-footer {
    border-top: 1px solid var(--omm-border);
    padding: 16px 24px;
}

.modal-dark .btn-close {
    filter: invert(var(--modal-close-invert));
}

/* =====================================================================
   IMPORT MODAL & DRAG-AND-DROP
   ===================================================================== */
.import-dropzone {
    border: 2px dashed var(--omm-border);
    border-radius: var(--radius-md);
    padding: 28px 20px;
    text-align: center;
    background: var(--omm-surface-hover);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.import-dropzone:hover,
.import-dropzone.dragover {
    border-color: var(--omm-primary-light);
    background: rgba(79, 70, 229, 0.05);
}

.import-dropzone .dropzone-icon {
    font-size: 2.4rem;
    color: var(--omm-primary-light);
    margin-bottom: 8px;
    display: inline-block;
}

.import-dropzone .dropzone-title {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--omm-text);
    margin-bottom: 4px;
}

.import-dropzone .dropzone-sub {
    font-size: 0.8rem;
    color: var(--omm-text-muted);
}

.import-file-badge {
    display: none;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: rgba(79, 70, 229, 0.08);
    border: 1px solid rgba(79, 70, 229, 0.2);
    border-radius: var(--radius-sm);
    margin-top: 14px;
    font-size: 0.85rem;
}

.import-file-badge.show {
    display: flex;
}

.import-stat-box {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-top: 16px;
}

.import-stat-card {
    background: var(--omm-surface-hover);
    border: 1px solid var(--omm-border);
    border-radius: var(--radius-sm);
    padding: 12px;
    text-align: center;
}

.import-stat-card .val {
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 1.2;
}

.import-stat-card .lbl {
    font-size: 0.72rem;
    color: var(--omm-text-muted);
}

/* =====================================================================
   EDITOR PAGE
   ===================================================================== */
.editor-container {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: 20px;
    min-height: calc(100vh - var(--topbar-height) - 80px);
}

.editor-main {
    min-width: 0;
}

.editor-sidebar {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.tag-group-title {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--omm-text-dim);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 8px 12px 4px;
}

.tag-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 4px 10px;
    background: rgba(79,70,229,0.1);
    border: 1px solid rgba(79,70,229,0.3);
    border-radius: 20px;
    color: var(--omm-primary-light);
    font-size: 0.78rem;
    cursor: pointer;
    transition: all var(--transition-fast);
    margin: 2px;
    white-space: nowrap;
}

.tag-chip:hover {
    background: rgba(79,70,229,0.25);
    border-color: var(--omm-primary);
    transform: scale(1.05);
}

.tag-chip i {
    font-size: 0.65rem;
}

/* ── TinyMCE / CKEditor wrapper ── */
.editor-wrapper {
    background: white;
    border-radius: var(--radius-md);
    overflow: hidden;
    min-height: 500px;
    box-shadow: var(--shadow-md);
}

/* =====================================================================
   DOCUMENT CARD (List View)
   ===================================================================== */
.doc-card {
    background: var(--omm-surface);
    border: 1px solid var(--omm-border);
    border-radius: var(--radius-lg);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: all var(--transition-base);
    text-decoration: none;
    color: var(--omm-text);
}

.doc-card:hover {
    border-color: var(--omm-primary);
    background: var(--omm-surface-hover);
    transform: translateX(4px);
    color: var(--omm-text);
}

.doc-card-icon {
    width: 44px;
    height: 44px;
    background: rgba(79,70,229,0.12);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--omm-primary-light);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.doc-card-body {
    flex: 1;
    min-width: 0;
}

.doc-card-title {
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.doc-card-meta {
    font-size: 0.78rem;
    color: var(--omm-text-muted);
}

.doc-card-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

/* =====================================================================
   MERGE SETUP PAGE
   ===================================================================== */
.record-selector {
    max-height: 450px;
    overflow-y: auto;
    padding-right: 8px;
}

.record-selector::-webkit-scrollbar {
    width: 6px;
}

.record-selector::-webkit-scrollbar-thumb {
    background: var(--omm-border);
    border-radius: 3px;
}

.record-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    transition: background var(--transition-fast);
    cursor: pointer;
}

.record-item:hover {
    background: var(--omm-surface-hover);
}

.record-item input[type="checkbox"] {
    accent-color: var(--omm-primary);
    width: 16px;
    height: 16px;
}

/* =====================================================================
   PREVIEW PANEL & A4 REALISTIC SHEET
   ===================================================================== */
.preview-panel-container {
    background: #cbd5e1;
    border-radius: var(--radius-md);
    padding: 24px 16px;
    overflow-x: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 24px;
    min-height: 500px;
}
[data-bs-theme="dark"] .preview-panel-container {
    background: #0f172a;
}
.preview-sheet-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    width: max-content;
    min-width: 100%;
}
.preview-page-badge {
    align-self: center;
    margin-bottom: 8px;
    font-size: 0.75rem;
    font-weight: 500;
    color: #475569;
    background: rgba(255, 255, 255, 0.75);
    padding: 2px 12px;
    border-radius: 12px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}
[data-bs-theme="dark"] .preview-page-badge {
    color: #94a3b8;
    background: rgba(30, 41, 59, 0.85);
}
.preview-panel,
.preview-a4-sheet {
    background: #ffffff !important;
    color: #000000 !important;
    width: 210mm !important;
    min-width: 210mm !important;
    min-height: 297mm !important;
    margin: 0 auto !important;
    /* Thai Government standard margins: Top 2.5cm, Right 2.0cm, Bottom 2.0cm, Left 3.0cm */
    padding: 2.5cm 2.0cm 2.0cm 3.0cm !important;
    box-sizing: border-box !important;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2), 0 0 0 1px rgba(0, 0, 0, 0.06) !important;
    border-radius: 2px !important;
    font-family: 'TH SarabunPSK', 'TH Sarabun New', 'Sarabun', 'Angsana New', sans-serif !important;
    font-size: 16pt !important;
    line-height: 1.35 !important;
    word-wrap: break-word !important;
    text-align: left !important;
    position: relative !important;
    flex-shrink: 0 !important;
}
.preview-panel.landscape,
.preview-a4-sheet.landscape {
    width: 297mm !important;
    min-width: 297mm !important;
    min-height: 210mm !important;
    padding: 2.5cm 2.0cm 2.0cm 2.5cm !important;
}
.preview-panel p,
.preview-a4-sheet p {
    margin: 0 0 0.35em 0 !important;
    line-height: inherit !important;
}
.preview-panel table,
.preview-a4-sheet table {
    border-collapse: collapse !important;
    width: 100% !important;
    margin-bottom: 0.5rem !important;
}
.preview-panel td,
.preview-panel th,
.preview-a4-sheet td,
.preview-a4-sheet th {
    border: 1px solid #333333 !important;
    padding: 4px 8px !important;
    font-size: inherit !important;
    line-height: inherit !important;
}
.preview-panel img,
.preview-a4-sheet img {
    max-width: 100% !important;
    height: auto;
}
.preview-panel img.garuda-emblem,
.preview-a4-sheet img.garuda-emblem {
    display: inline-block !important;
    vertical-align: middle !important;
}

/* =====================================================================
   BADGE VARIANTS
   ===================================================================== */
.badge-tag {
    background: rgba(79,70,229,0.15);
    color: var(--omm-primary-light);
    border: 1px solid rgba(79,70,229,0.3);
    font-weight: 500;
}

.badge-table {
    background: rgba(6,182,212,0.15);
    color: var(--omm-accent-light);
    border: 1px solid rgba(6,182,212,0.3);
    font-weight: 500;
}

/* =====================================================================
   ANIMATIONS
   ===================================================================== */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-20px); }
    to   { opacity: 1; transform: translateX(0); }
}

.animate-fadeInUp {
    animation: fadeInUp 0.4s ease forwards;
}

.animate-slideInLeft {
    animation: slideInLeft 0.3s ease forwards;
}

/* Stagger children */
.stagger-children > * {
    opacity: 0;
    animation: fadeInUp 0.4s ease forwards;
}

.stagger-children > *:nth-child(1) { animation-delay: 0.05s; }
.stagger-children > *:nth-child(2) { animation-delay: 0.10s; }
.stagger-children > *:nth-child(3) { animation-delay: 0.15s; }
.stagger-children > *:nth-child(4) { animation-delay: 0.20s; }
.stagger-children > *:nth-child(5) { animation-delay: 0.25s; }

/* =====================================================================
   RESPONSIVE
   ===================================================================== */
@media (max-width: 992px) {
    .omm-sidebar {
        transform: translateX(calc(-1 * var(--sidebar-width)));
    }
    .omm-sidebar.show {
        transform: translateX(0);
    }
    .omm-main {
        margin-left: 0;
    }
    .editor-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .omm-content {
        padding: 16px;
    }
    .stat-card {
        padding: 14px 16px;
    }
}

/* =====================================================================
   SCROLLBAR
   ===================================================================== */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--omm-bg);
}

::-webkit-scrollbar-thumb {
    background: var(--omm-border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--omm-text-dim);
}