/* ==========================================================================
   BRUT/UI (Soft Variant) Neobrutalism Design System
   Reference: https://github.com/devkit-labs/brut-ui
   Coral Palette & Dotted Background Pattern
   Dials: ENERGY 2 / RHYTHM 2 / MOTION 1
   Rules: Hard Crisp Shadows, 2px Solid Borders, Tactile Interactions, No Em-Dashes
   ========================================================================== */

:root,
[data-theme="dark"] {
    --bg-primary: #121316;
    --dot-color: rgba(255, 255, 255, 0.14);
    --bg-surface: #1a1c22;
    --bg-card: #1a1c22;
    --bg-card-hover: #262933;
    --border-color: #000000;
    --border-subtle: #2e333d;
    --text-primary: #f8fafc;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    --accent-primary: #ff6b6b;
    --accent-hover: #fa5252;
    --accent-subtle: rgba(255, 107, 107, 0.22);
    --accent-foreground: #000000;
    --focus-ring: #ff6b6b;
    --success: #10b981;
    --success-hover: #059669;
    --success-bg: rgba(16, 185, 129, 0.16);
    --warning: #f59e0b;
    --warning-hover: #d97706;
    --warning-bg: rgba(245, 158, 11, 0.16);
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --danger-bg: rgba(239, 68, 68, 0.16);
    --info: #06b6d4;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 10px;
    --radius-xl: 14px;
    --shadow-color: #000000;
    --shadow-sm: 2px 2px 0px var(--shadow-color);
    --shadow-md: 3.5px 3.5px 0px var(--shadow-color);
    --shadow-lg: 5px 5px 0px var(--shadow-color);
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

[data-theme="light"] {
    --bg-primary: #f6f5f0;
    --dot-color: rgba(0, 0, 0, 0.15);
    --bg-surface: #ffffff;
    --bg-card: #ffffff;
    --bg-card-hover: #f0eee7;
    --border-color: #000000;
    --border-subtle: #3f3f46;
    --text-primary: #18181b;
    --text-secondary: #52525b;
    --text-muted: #71717a;
    --accent-primary: #ff6b6b;
    --accent-hover: #fa5252;
    --accent-subtle: rgba(255, 107, 107, 0.16);
    --accent-foreground: #000000;
    --focus-ring: #ff6b6b;
    --success: #059669;
    --success-hover: #047857;
    --success-bg: #ecfdf5;
    --warning: #d97706;
    --warning-hover: #b45309;
    --warning-bg: #fffbeb;
    --danger: #dc2626;
    --danger-hover: #b91c1c;
    --danger-bg: #fef2f2;
    --info: #0284c7;
    --shadow-color: #000000;
    --shadow-sm: 2px 2px 0px var(--shadow-color);
    --shadow-md: 3.5px 3.5px 0px var(--shadow-color);
    --shadow-lg: 5px 5px 0px var(--shadow-color);
}

/* Brut/UI Accent Presets */
:root,
[data-accent="coral"],
[data-accent=""] {
    --accent-primary: #ff6b6b;
    --accent-hover: #fa5252;
    --accent-subtle: rgba(255, 107, 107, 0.16);
    --accent-foreground: #000000;
    --focus-ring: #ff6b6b;
}
[data-theme="dark"][data-accent="coral"] {
    --accent-subtle: rgba(255, 107, 107, 0.22);
}

[data-accent="blue"] {
    --accent-primary: #3b82f6;
    --accent-hover: #2563eb;
    --accent-subtle: rgba(59, 130, 246, 0.16);
    --accent-foreground: #ffffff;
    --focus-ring: #3b82f6;
}
[data-theme="dark"][data-accent="blue"] {
    --accent-primary: #60a5fa;
    --accent-hover: #3b82f6;
    --accent-subtle: rgba(96, 165, 250, 0.2);
    --accent-foreground: #000000;
    --focus-ring: #60a5fa;
}

[data-accent="purple"] {
    --accent-primary: #a855f7;
    --accent-hover: #9333ea;
    --accent-subtle: rgba(168, 85, 247, 0.16);
    --accent-foreground: #ffffff;
    --focus-ring: #a855f7;
}
[data-theme="dark"][data-accent="purple"] {
    --accent-primary: #c084fc;
    --accent-hover: #a855f7;
    --accent-subtle: rgba(192, 132, 252, 0.2);
    --accent-foreground: #000000;
    --focus-ring: #c084fc;
}

[data-accent="green"] {
    --accent-primary: #10b981;
    --accent-hover: #059669;
    --accent-subtle: rgba(168, 85, 247, 0.16);
    --accent-foreground: #000000;
    --focus-ring: #10b981;
}
[data-theme="dark"][data-accent="green"] {
    --accent-primary: #34d399;
    --accent-hover: #10b981;
    --accent-subtle: rgba(52, 211, 153, 0.2);
    --accent-foreground: #000000;
    --focus-ring: #34d399;
}

[data-accent="red"] {
    --accent-primary: #f43f5e;
    --accent-hover: #e11d48;
    --accent-subtle: rgba(244, 63, 94, 0.16);
    --accent-foreground: #ffffff;
    --focus-ring: #f43f5e;
}
[data-theme="dark"][data-accent="red"] {
    --accent-primary: #fb7185;
    --accent-hover: #f43f5e;
    --accent-subtle: rgba(251, 113, 133, 0.2);
    --accent-foreground: #000000;
    --focus-ring: #fb7185;
}

[data-accent="amber"] {
    --accent-primary: #f59e0b;
    --accent-hover: #d97706;
    --accent-subtle: rgba(245, 158, 11, 0.16);
    --accent-foreground: #000000;
    --focus-ring: #f59e0b;
}
[data-theme="dark"][data-accent="amber"] {
    --accent-primary: #fbbf24;
    --accent-hover: #f59e0b;
    --accent-subtle: rgba(251, 191, 36, 0.2);
    --accent-foreground: #000000;
    --focus-ring: #fbbf24;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
    background-image: radial-gradient(var(--dot-color) 1.5px, transparent 1.5px);
    background-size: 20px 20px;
    background-attachment: fixed;
    transition: background-color 0.15s ease, color 0.15s ease;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover {
    color: var(--accent-hover);
}

*:focus-visible {
    outline: 2px solid var(--focus-ring);
    outline-offset: 2px;
}

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

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--bg-surface);
    border-right: 2px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    transition: transform 0.25s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.sidebar-header {
    padding: 16px 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 2px solid var(--border-color);
    overflow: hidden;
}

.sidebar-logo-icon {
    width: 38px;
    height: 38px;
    background-color: var(--accent-primary);
    color: var(--accent-foreground);
    border-radius: var(--radius-md);
    border: 2px solid #000000;
    box-shadow: 2px 2px 0px #000000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.sidebar-logo-img,
.sidebar-header img {
    width: 38px !important;
    height: 38px !important;
    max-width: 38px !important;
    max-height: 38px !important;
    border-radius: var(--radius-md);
    object-fit: contain !important;
    background: var(--bg-primary);
    border: 2px solid var(--border-color);
    flex-shrink: 0 !important;
    display: block !important;
}

.sidebar-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.sidebar-subtitle {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.sidebar-nav {
    padding: 16px 12px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.92rem;
    border: 2px solid transparent;
    transition: transform 0.1s ease, box-shadow 0.1s ease, background-color 0.15s ease, color 0.15s ease;
    min-height: 44px;
}

.nav-item:hover {
    background-color: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.nav-item.active {
    background-color: var(--accent-primary);
    color: var(--accent-foreground);
    border: 2px solid #000000;
    box-shadow: 2.5px 2.5px 0px #000000;
    font-weight: 700;
}

.nav-icon {
    font-size: 1.15rem;
    width: 24px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px 20px;
    border-top: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Main Content Area */
.main-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    min-width: 0;
}

.top-navbar {
    height: 56px;
    background-color: var(--bg-surface);
    border-bottom: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    gap: 12px;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.page-heading {
    font-size: 0.98rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-status {
    display: flex;
    align-items: center;
    gap: 10px;
}

.theme-toggle-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background-color: var(--bg-card-hover);
    color: var(--text-primary);
    border: 2px solid #000000;
    padding: 6px 12px;
    min-height: 38px;
    border-radius: var(--radius-md);
    box-shadow: 2px 2px 0px #000000;
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 700;
    transition: transform 0.1s ease, box-shadow 0.1s ease, background-color 0.15s ease;
    user-select: none;
}

.theme-toggle-btn:hover {
    transform: translate(-1px, -1px);
    box-shadow: 3px 3px 0px #000000;
}

.theme-toggle-btn:active {
    transform: translate(1px, 1px);
    box-shadow: 1px 1px 0px #000000;
}

.theme-toggle-icon {
    font-size: 0.95rem;
    line-height: 1;
}

.status-indicator-wrapper {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.76rem;
    font-weight: 700;
    border: 1.5px solid #000000;
    box-shadow: 1.5px 1.5px 0px #000000;
}

.status-online {
    background-color: var(--success-bg);
    color: var(--success);
    border-color: rgba(16, 185, 129, 0.4);
}

.status-maintenance {
    background-color: var(--danger-bg);
    color: var(--danger);
    border-color: rgba(239, 68, 68, 0.4);
}

.status-dot-pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
    flex-shrink: 0;
}

.dot-success {
    background-color: var(--success);
}

.dot-danger {
    background-color: var(--danger);
}

.text-success {
    color: var(--success);
}

.text-danger {
    color: var(--danger);
}

.content-area {
    padding: 24px;
    flex: 1;
}

/* Flash Messages */
.flash-alert {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.88rem;
    border: 2px solid #000000;
    box-shadow: 2.5px 2.5px 0px #000000;
    animation: fadeIn 0.2s ease;
}

.flash-success {
    background-color: var(--success-bg);
    color: var(--success);
    border-color: #000000;
}

.flash-danger {
    background-color: var(--danger-bg);
    color: var(--danger);
    border-color: #000000;
}

/* Stat Cards Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin-bottom: 20px;
}

.stat-card {
    background-color: var(--bg-surface);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: 3px 3px 0px var(--shadow-color);
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
}

.stat-card:hover {
    transform: translate(-1px, -1px);
    box-shadow: 4px 4px 0px var(--shadow-color);
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-label {
    font-size: 0.76rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 2px;
}

.stat-value {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-icon-wrapper {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    border: 1.5px solid #000000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.stat-icon-blue { background-color: var(--accent-subtle); color: var(--accent-primary); }
.stat-icon-green { background-color: var(--success-bg); color: var(--success); }
.stat-icon-yellow { background-color: var(--warning-bg); color: var(--warning); }
.stat-icon-purple { background-color: rgba(168, 85, 247, 0.15); color: #a855f7; }

/* Dashboard Cards & Containers */
.dashboard-card {
    background-color: var(--bg-surface);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: 3.5px 3.5px 0px var(--shadow-color);
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.card-header-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--border-color);
}

.card-title {
    font-size: 1rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -0.01em;
    line-height: 1.35;
    color: var(--text-primary);
}

/* Tables */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.custom-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.92rem;
}

.custom-table th {
    padding: 12px 16px;
    background-color: var(--bg-card-hover);
    color: var(--text-primary);
    font-weight: 800;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--border-color);
}

.custom-table td {
    padding: 14px 16px;
    border-bottom: 1.5px solid var(--border-color);
    color: var(--text-primary);
    vertical-align: middle;
}

.custom-table tr:hover td {
    background-color: var(--bg-card-hover);
}

/* Badges */
.badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: var(--radius-sm);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    line-height: 1.3;
    border: 1.5px solid #000000;
    box-shadow: 1.5px 1.5px 0px #000000;
}

.badge-paid {
    background-color: var(--success-bg);
    color: var(--success);
    border: 1.5px solid #000000;
}

.badge-pending {
    background-color: var(--warning-bg);
    color: var(--warning);
    border: 1.5px solid #000000;
}

.badge-failed {
    background-color: var(--danger-bg);
    color: var(--danger);
    border: 1.5px solid #000000;
}

.badge-active {
    background-color: var(--success-bg);
    color: var(--success);
    border: 1.5px solid #000000;
}

.badge-inactive {
    background-color: var(--bg-card-hover);
    color: var(--text-muted);
    border: 1.5px solid #000000;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 9px 18px;
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    border: 2px solid #000000;
    box-shadow: 2.5px 2.5px 0px #000000;
    transition: transform 0.1s ease, box-shadow 0.1s ease, background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
    text-decoration: none;
    line-height: 1.2;
    min-height: 40px;
    user-select: none;
}

.btn:hover:not(:disabled) {
    transform: translate(-1px, -1px);
    box-shadow: 3.5px 3.5px 0px #000000;
}

.btn:active:not(:disabled) {
    transform: translate(1.5px, 1.5px);
    box-shadow: 1px 1px 0px #000000;
}

.btn-primary {
    background-color: var(--accent-primary);
    color: var(--accent-foreground);
    border-color: #000000;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--accent-hover);
    border-color: #000000;
}

.btn-secondary {
    background-color: var(--bg-card-hover);
    color: var(--text-primary);
    border-color: #000000;
}

.btn-secondary:hover:not(:disabled) {
    background-color: var(--bg-surface);
}

.btn-success {
    background-color: var(--success);
    color: #ffffff;
    border-color: #000000;
}

.btn-success:hover:not(:disabled) {
    background-color: var(--success-hover);
}

.btn-danger {
    background-color: var(--danger);
    color: #ffffff;
    border-color: #000000;
}

.btn-danger:hover:not(:disabled) {
    background-color: var(--danger-hover);
}

.btn-sm {
    padding: 5px 12px;
    font-size: 0.8rem;
    min-height: 32px;
    box-shadow: 2px 2px 0px #000000;
}

/* Forms */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-secondary);
}

.form-control {
    width: 100%;
    padding: 10px 14px;
    background-color: var(--bg-primary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: 2px 2px 0px var(--shadow-color);
    color: var(--text-primary);
    font-size: 0.92rem;
    font-family: inherit;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
    min-height: 42px;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 3px 3px 0px var(--accent-primary);
}

textarea.form-control {
    resize: vertical;
    min-height: 100px;
}

.form-hint {
    font-size: 0.78rem;
    color: var(--text-muted);
    margin-top: 6px;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}

/* Modals */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal-backdrop.active {
    display: flex;
}

.modal-window {
    background-color: var(--bg-surface);
    border: 2px solid #000000;
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 580px;
    box-shadow: 5px 5px 0px #000000;
    overflow: hidden;
    animation: modalSlide 0.2s ease;
}

.modal-header {
    padding: 18px 24px;
    border-bottom: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 1.15rem;
    font-weight: 700;
}

.modal-body {
    padding: 24px;
    max-height: 75vh;
    overflow-y: auto;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 2px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    background-color: var(--bg-card-hover);
}

.close-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    min-width: 32px;
    min-height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
}

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

/* Login Page Styling */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background-color: var(--bg-primary);
}

.login-card {
    background-color: var(--bg-surface);
    border: 2px solid #000000;
    border-radius: var(--radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 5px 5px 0px #000000;
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-logo {
    width: 56px;
    height: 56px;
    background-color: var(--accent-primary);
    color: var(--accent-foreground);
    border-radius: var(--radius-lg);
    border: 2px solid #000000;
    box-shadow: 3px 3px 0px #000000;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 16px;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes modalSlide {
    from { opacity: 0; transform: scale(0.97); }
    to { opacity: 1; transform: scale(1); }
}

/* Collapsible Card Component */
.collapsible-card {
    background-color: var(--bg-surface);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: 24px;
    overflow: hidden;
    box-shadow: 3.5px 3.5px 0px var(--shadow-color);
    transition: border-color 0.15s ease;
}

.collapsible-card:hover {
    border-color: var(--border-subtle);
}

.collapsible-header {
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
    background-color: var(--bg-card-hover);
    transition: background-color 0.15s ease;
}

.collapsible-header:hover {
    background-color: var(--border-color);
}

.collapsible-body {
    padding: 22px;
    border-top: 2px solid var(--border-color);
    display: none;
}

.collapsible-body.open {
    display: block;
    animation: fadeIn 0.2s ease;
}

/* Theme Presets Selector */
.theme-presets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
    gap: 12px;
    margin-bottom: 16px;
}

.theme-card-option {
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 12px 10px;
    text-align: center;
    cursor: pointer;
    box-shadow: 2px 2px 0px var(--shadow-color);
    transition: transform 0.1s ease, box-shadow 0.1s ease, border-color 0.15s ease, background-color 0.15s ease;
    background: var(--bg-primary);
}

.theme-card-option:hover {
    transform: translate(-1px, -1px);
    box-shadow: 3px 3px 0px var(--shadow-color);
}

.theme-card-option.active {
    border-color: var(--accent-primary);
    box-shadow: 3px 3px 0px var(--accent-primary);
    background-color: var(--bg-card-hover);
}

.theme-color-preview-bar {
    height: 24px;
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    border: 1.5px solid #000000;
    box-shadow: 1.5px 1.5px 0px #000000;
}

/* Mobile & Hamburger Navigation */
.hamburger-btn {
    display: none;
    background-color: var(--bg-card-hover);
    border: 2px solid #000000;
    box-shadow: 2px 2px 0px #000000;
    color: var(--text-primary);
    font-size: 1.25rem;
    padding: 8px 12px;
    min-height: 44px;
    min-width: 44px;
    border-radius: var(--radius-md);
    cursor: pointer;
    line-height: 1;
    align-items: center;
    justify-content: center;
    transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.hamburger-btn:hover {
    background-color: var(--border-color);
}

.hamburger-btn:active {
    transform: translate(1px, 1px);
    box-shadow: 1px 1px 0px #000000;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: 998;
}

.sidebar-overlay.active {
    display: block;
}

@media (max-width: 768px) {
    .hamburger-btn {
        display: inline-flex;
    }
    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        width: 280px;
        height: 100vh;
        z-index: 999;
        transform: translateX(-100%);
        transition: transform 0.25s ease;
        box-shadow: var(--shadow-lg);
    }
    .sidebar.mobile-open {
        transform: translateX(0);
    }
    .main-wrapper {
        width: 100%;
    }
    .top-navbar {
        height: 56px;
        padding: 0 12px;
        gap: 8px;
    }
    .page-heading {
        font-size: 0.88rem;
        max-width: 120px;
    }
    .user-status {
        gap: 6px;
    }
    .status-indicator-wrapper {
        padding: 2px 6px;
    }
    .status-indicator-wrapper .status-text {
        display: none !important;
    }
    .status-dot-pulse {
        width: 10px;
        height: 10px;
    }
    .admin-label {
        font-size: 0.8rem !important;
        max-width: 80px;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
    }
    .theme-toggle-btn {
        min-height: 44px;
        padding: 6px 10px;
    }
    .theme-toggle-text {
        display: none;
    }
    .content-area {
        padding: 14px 10px;
    }
    .dashboard-card {
        padding: 16px 12px;
        margin-bottom: 16px;
        border-radius: var(--radius-md);
    }
    .card-title {
        font-size: 0.88rem;
    }
    .form-row {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    .btn {
        min-height: 44px;
    }
}