/* ==========================================================================
   Design System & Theme Variables
   ========================================================================== */
:root {
    /* Fonts */
    --font-primary: 'Inter', 'Noto Sans Thai', sans-serif;

    /* Common Colors */
    --color-white: #ffffff;
    --color-gray-50: #f8fafc;
    --color-gray-100: #f1f5f9;
    --color-gray-200: #e2e8f0;
    --color-gray-300: #cbd5e1;
    --color-gray-400: #94a3b8;
    --color-gray-500: #64748b;
    --color-gray-600: #475569;
    --color-gray-700: #334155;
    --color-gray-800: #1e293b;
    --color-gray-900: #0f172a;
    --color-gray-950: #020617;

    /* Theme Accents (Harmonious & Professional) */
    --accent-teal: #0ea5e9;       /* Factory 2, Core Teal */
    --accent-indigo: #6366f1;     /* Factory 3, Combined Base */
    --accent-violet: #8b5cf6;     /* Dormitory, Accent Purple */
    --accent-emerald: #10b981;    /* Under Budget / Success */
    --accent-rose: #f43f5e;       /* Over Budget / Failure / Downtime Danger */
    --accent-amber: #f59e0b;      /* Breakdown Warnings */

    /* Transition Speeds */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Layout Sizes */
    --sidebar-width: 260px;
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
}

/* Dark Theme (Default) */
body.dark-theme {
    --bg-app: #030712;
    --bg-sidebar: #0b0f19;
    --bg-glass-card: rgba(17, 24, 39, 0.7);
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-glass-glow: rgba(14, 165, 233, 0.15);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --shadow-card: 0 4px 30px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 15px rgba(14, 165, 233, 0.2);
    --input-bg: rgba(31, 41, 55, 0.5);
    --input-border: rgba(255, 255, 255, 0.1);
    --table-header-bg: rgba(31, 41, 55, 0.8);
    --table-row-hover: rgba(255, 255, 255, 0.03);
    --scroll-thumb: rgba(255, 255, 255, 0.1);
    --scroll-thumb-hover: rgba(255, 255, 255, 0.2);
}

/* Light Theme */
body.light-theme {
    --bg-app: #f1f5f9;
    --bg-sidebar: #ffffff;
    --bg-glass-card: rgba(255, 255, 255, 0.8);
    --border-glass: rgba(0, 0, 0, 0.08);
    --border-glass-glow: rgba(99, 102, 241, 0.15);
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-muted: #94a3b8;
    --shadow-card: 0 10px 30px rgba(15, 23, 42, 0.05);
    --shadow-glow: 0 0 15px rgba(99, 102, 241, 0.1);
    --input-bg: #ffffff;
    --input-border: #cbd5e1;
    --table-header-bg: #f8fafc;
    --table-row-hover: #f1f5f9;
    --scroll-thumb: rgba(0, 0, 0, 0.15);
    --scroll-thumb-hover: rgba(0, 0, 0, 0.25);
}

/* ==========================================================================
   Base Styles & Resets
   ========================================================================== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-app);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

a {
    text-decoration: none;
    color: inherit;
}

button, input, select, textarea {
    font-family: inherit;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

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

::-webkit-scrollbar-thumb:hover {
    background: var(--scroll-thumb-hover);
}

/* ==========================================================================
   Layout Structures
   ========================================================================== */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Navigation */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-glass);
    padding: 24px;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
    transition: background-color var(--transition-normal), border var(--transition-normal);
}

.sidebar-header {
    margin-bottom: 40px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    color: var(--accent-teal);
    filter: drop-shadow(0 0 5px rgba(14, 165, 233, 0.3));
}

body.light-theme .logo-icon {
    color: var(--accent-indigo);
    filter: drop-shadow(0 0 5px rgba(99, 102, 241, 0.3));
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
    letter-spacing: 0.5px;
    background: linear-gradient(135deg, var(--accent-teal), var(--accent-indigo));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex-grow: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 14px 18px;
    border-radius: var(--border-radius-md);
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 15px;
    transition: all var(--transition-fast);
}

.nav-icon {
    width: 20px;
    height: 20px;
    stroke-width: 1.8;
}

.nav-item:hover {
    color: var(--text-primary);
    background-color: var(--table-row-hover);
}

.nav-item.active {
    color: var(--color-white);
    background: linear-gradient(135deg, var(--accent-teal), var(--accent-indigo));
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.25);
}

body.light-theme .nav-item.active {
    background: linear-gradient(135deg, var(--accent-indigo), var(--accent-violet));
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.2);
}

.sidebar-footer {
    padding-top: 20px;
    border-top: 1px solid var(--border-glass);
}

.theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    width: 100%;
    padding: 12px;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-glass);
    background: var(--input-bg);
    color: var(--text-primary);
    cursor: pointer;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.theme-toggle:hover {
    border-color: var(--text-secondary);
    background: var(--table-row-hover);
}

.theme-toggle svg {
    width: 18px;
    height: 18px;
}

body.dark-theme .sun-icon { display: block; }
body.dark-theme .moon-icon { display: none; }
body.dark-theme .theme-toggle-text { content: "โหมดสว่าง"; }

body.light-theme .sun-icon { display: none; }
body.light-theme .moon-icon { display: block; }
body.light-theme .theme-toggle-text { content: "โหมดมืด"; }

/* Main Content Area */
.main-content {
    margin-left: var(--sidebar-width);
    flex-grow: 1;
    padding: 40px;
    max-width: 1600px;
    width: calc(100% - var(--sidebar-width));
}

/* Header */
.main-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.header-title-container h1 {
    font-size: 28px;
    font-weight: 700;
    letter-spacing: -0.5px;
    margin-bottom: 4px;
}

.text-secondary {
    color: var(--text-secondary);
    font-size: 14px;
}

.date-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border-radius: var(--border-radius-md);
    background-color: var(--bg-glass-card);
    border: 1px solid var(--border-glass);
    font-size: 14px;
    font-weight: 500;
}

.calendar-icon {
    width: 16px;
    height: 16px;
    color: var(--accent-teal);
}

body.light-theme .calendar-icon {
    color: var(--accent-indigo);
}

/* ==========================================================================
   Tabs Navigation (Sub-navigation inside pages)
   ========================================================================== */
.dashboard-tabs {
    display: flex;
    gap: 12px;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border-glass);
    padding-bottom: 1px;
}

.tab-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 15px;
    cursor: pointer;
    position: relative;
    transition: color var(--transition-fast);
}

.tab-icon {
    width: 18px;
    height: 18px;
}

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

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

body.light-theme .tab-btn.active {
    color: var(--accent-indigo);
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--accent-teal);
    border-radius: 3px 3px 0 0;
}

body.light-theme .tab-btn.active::after {
    background-color: var(--accent-indigo);
}

/* View Sections visibility */
.content-section {
    display: none;
    animation: fadeIn var(--transition-normal);
}

.content-section.active-view {
    display: block;
}

.dashboard-tab-content {
    display: none;
    animation: fadeIn var(--transition-normal);
}

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

.entry-tab-content {
    display: none;
    animation: fadeIn var(--transition-normal);
}

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

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   Stats Cards (Dashboard highlights)
   ========================================================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stats-grid.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.stats-card {
    background: var(--bg-glass-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(16px);
    transition: all var(--transition-normal);
}

.stats-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-glass-glow);
    box-shadow: var(--shadow-glow), var(--shadow-card);
}

.stats-info {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.stats-label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stats-info h3 {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.stats-trend {
    font-size: 13px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
}

.trend-up { color: var(--accent-rose); }
.trend-down { color: var(--accent-emerald); }
.stats-subtext {
    font-size: 12px;
    color: var(--text-muted);
}

.stats-chart-mini {
    width: 48px;
    height: 48px;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
}

.color-primary svg { color: var(--accent-teal); }
.color-secondary svg { color: var(--accent-violet); }
.color-info svg { color: var(--accent-indigo); }
.color-success svg { color: var(--accent-emerald); }
.color-warning svg { color: var(--accent-amber); }
.color-danger svg { color: var(--accent-rose); }

.mini-chart-icon {
    width: 24px;
    height: 24px;
}

/* ==========================================================================
   Dashboard Charts Layout
   ========================================================================== */
.charts-grid-main {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.chart-wrapper {
    background: var(--bg-glass-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(16px);
    display: flex;
    flex-direction: column;
    gap: 20px;
    transition: border var(--transition-normal);
}

.chart-wrapper.span-full {
    grid-column: span 2;
}

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

.chart-title {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.badge {
    padding: 4px 10px;
    border-radius: var(--border-radius-sm);
    font-size: 11px;
    font-weight: 700;
    text-transform: uppercase;
}

.color-badge-combined { background: rgba(99, 102, 241, 0.15); color: var(--accent-indigo); }
.color-badge-f2 { background: rgba(14, 165, 233, 0.15); color: var(--accent-teal); }
.color-badge-f3 { background: rgba(139, 92, 246, 0.15); color: var(--accent-violet); }
.color-badge-dorm { background: rgba(245, 158, 11, 0.15); color: var(--accent-amber); }
.color-badge-bd-monthly { background: rgba(244, 63, 94, 0.15); color: var(--accent-rose); }
.color-badge-area { background: rgba(16, 185, 129, 0.15); color: var(--accent-emerald); }
.color-badge-top20 { background: rgba(245, 158, 11, 0.15); color: var(--accent-amber); }

.chart-container {
    position: relative;
    width: 100%;
    height: 320px;
}

.chart-legend-custom {
    display: flex;
    gap: 16px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
}

.legend-dot {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-right: 4px;
}

.cost-dot { background-color: var(--accent-indigo); }
.target-dot { background-color: var(--accent-rose); }

/* ==========================================================================
   Data Entry Layout & Card Styling
   ========================================================================== */
.entry-grid {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 24px;
    align-items: start;
}

.entry-grid.vertical-stack {
    grid-template-columns: 1fr;
}

.form-card {
    background: var(--bg-glass-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(16px);
}

.form-card.full-width {
    width: 100%;
}

.card-header {
    margin-bottom: 24px;
}

.card-header h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 4px;
}

.card-header.flex-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.card-header.border-bottom {
    border-bottom: 1px solid var(--border-glass);
    padding-bottom: 16px;
}

.header-filters {
    display: flex;
    gap: 12px;
}

.search-input {
    padding: 8px 16px;
    font-size: 14px;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--input-border);
    background: var(--input-bg);
    color: var(--text-primary);
    width: 280px;
    outline: none;
    transition: all var(--transition-fast);
}

.search-input:focus {
    border-color: var(--accent-teal);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
}

body.light-theme .search-input:focus {
    border-color: var(--accent-indigo);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

/* Form Styles */
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.form-group label {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
}

.required {
    color: var(--accent-rose);
}

/* Modern Input Styling */
input[type="text"],
input[type="number"],
input[type="date"],
input[type="month"],
input[type="time"],
select,
textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 14px;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--input-border);
    background: var(--input-bg);
    color: var(--text-primary);
    outline: none;
    transition: all var(--transition-fast);
}

input:focus, select:focus, textarea:focus {
    border-color: var(--accent-teal);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
    background: var(--bg-sidebar);
}

body.light-theme input:focus, 
body.light-theme select:focus, 
body.light-theme textarea:focus {
    border-color: var(--accent-indigo);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

/* Special calendar / input configs */
input[type="date"]::-webkit-calendar-picker-indicator,
input[type="month"]::-webkit-calendar-picker-indicator,
input[type="time"]::-webkit-calendar-picker-indicator {
    filter: invert(0.7);
    cursor: pointer;
}

body.light-theme input[type="date"]::-webkit-calendar-picker-indicator,
body.light-theme input[type="month"]::-webkit-calendar-picker-indicator,
body.light-theme input[type="time"]::-webkit-calendar-picker-indicator {
    filter: invert(0.2);
}

/* Input Group with units/addon */
.input-with-addon {
    display: flex;
    position: relative;
    align-items: center;
}

.input-with-addon input {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
    flex-grow: 1;
}

.input-with-addon .addon {
    background: var(--table-header-bg);
    border: 1px solid var(--input-border);
    border-left: none;
    padding: 0 16px;
    height: 43px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-top-right-radius: var(--border-radius-md);
    border-bottom-right-radius: var(--border-radius-md);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    min-width: 60px;
}

/* Custom Highlight States */
.disabled-input input {
    background: rgba(0,0,0,0.15);
    cursor: not-allowed;
    color: var(--text-muted);
}

body.light-theme .disabled-input input {
    background: #e2e8f0;
}

.duration-input-highlight input {
    border-color: var(--accent-teal);
    font-weight: 700;
}

body.light-theme .duration-input-highlight input {
    border-color: var(--accent-indigo);
}

/* Flex grids for breakdown forms */
.form-row-two {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-row-three {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 20px;
}

/* Buttons */
.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 24px;
    border-top: 1px solid var(--border-glass);
    padding-top: 20px;
}

.btn {
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    border-radius: var(--border-radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    outline: none;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-teal), var(--accent-indigo));
    color: var(--color-white);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(14, 165, 233, 0.3);
}

body.light-theme .btn-primary {
    background: linear-gradient(135deg, var(--accent-indigo), var(--accent-violet));
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}

body.light-theme .btn-primary:hover {
    box-shadow: 0 6px 16px rgba(99, 102, 241, 0.35);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
}

.btn-outline:hover {
    background: var(--table-row-hover);
    border-color: var(--text-secondary);
}

/* ==========================================================================
   Data Tables
   ========================================================================== */
.table-card {
    background: var(--bg-glass-card);
    border: 1px solid var(--border-glass);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-card);
    backdrop-filter: blur(16px);
    overflow: hidden;
}

.table-card.full-width {
    width: 100%;
}

.table-responsive {
    overflow-x: auto;
    width: 100%;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 14px;
}

.data-table th {
    background: var(--table-header-bg);
    padding: 14px 16px;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-glass);
}

.data-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-glass);
    color: var(--text-primary);
}

.data-table tbody tr {
    transition: background-color var(--transition-fast);
}

.data-table tbody tr:hover {
    background-color: var(--table-row-hover);
}

.no-data {
    text-align: center;
    color: var(--text-muted);
    padding: 40px !important;
    font-style: italic;
}

.actions-col {
    text-align: right;
    width: 120px;
}

.btn-action {
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 6px;
    border-radius: 6px;
    color: var(--text-secondary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.btn-action svg {
    width: 16px;
    height: 16px;
}

.btn-edit:hover {
    color: var(--accent-teal);
    background: rgba(14, 165, 233, 0.15);
}

body.light-theme .btn-edit:hover {
    color: var(--accent-indigo);
    background: rgba(99, 102, 241, 0.1);
}

.btn-delete:hover {
    color: var(--accent-rose);
    background: rgba(244, 63, 94, 0.15);
}

/* Status Badges */
.status-pill {
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    display: inline-block;
}

.status-normal {
    background: rgba(16, 185, 129, 0.15);
    color: var(--accent-emerald);
}

.status-warning {
    background: rgba(245, 158, 11, 0.15);
    color: var(--accent-amber);
}

.status-danger {
    background: rgba(244, 63, 94, 0.15);
    color: var(--accent-rose);
}

/* ==========================================================================
   Notifications Container
   ========================================================================== */
.notification-container {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 9999;
}

.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    border-radius: var(--border-radius-md);
    background: var(--bg-sidebar);
    border: 1px solid var(--border-glass);
    color: var(--text-primary);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    min-width: 300px;
    animation: slideIn var(--transition-fast) forwards;
}

.toast-success { border-left: 4px solid var(--accent-emerald); }
.toast-danger { border-left: 4px solid var(--accent-rose); }
.toast-info { border-left: 4px solid var(--accent-teal); }

.toast-icon {
    width: 20px;
    height: 20px;
}

.toast-success .toast-icon { color: var(--accent-emerald); }
.toast-danger .toast-icon { color: var(--accent-rose); }
.toast-info .toast-icon { color: var(--accent-teal); }

.toast-content {
    flex-grow: 1;
}

.toast-title {
    font-weight: 600;
    font-size: 14px;
}

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

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; transform: translateY(10px); }
}

/* ==========================================================================
   Responsive Adaptations
   ========================================================================== */
@media (max-width: 1200px) {
    .charts-grid-main {
        grid-template-columns: 1fr;
    }
    
    .chart-wrapper.span-full {
        grid-column: auto;
    }
    
    .entry-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 992px) {
    .app-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        border-right: none;
        border-bottom: 1px solid var(--border-glass);
        padding: 16px 24px;
    }
    
    .sidebar-header {
        margin-bottom: 16px;
    }
    
    .nav-menu {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 6px;
    }
    
    .nav-item {
        padding: 10px 14px;
        font-size: 14px;
    }
    
    .sidebar-footer {
        display: none; /* Hide toggle footer, make top panel toggleable if needed */
    }
    
    .main-content {
        margin-left: 0;
        width: 100%;
        padding: 24px;
    }
    
    .form-row-two, .form-row-three {
        grid-template-columns: 1fr;
        gap: 12px;
    }
}