/* ==================== CSS Variables ==================== */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #64748b;
    --success: #22c55e;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;

    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;

    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;

    --border-color: #e2e8f0;
    --border-radius: 8px;
    --border-radius-lg: 12px;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);

    --sidebar-width: 250px;
    --header-height: 64px;

    --transition-fast: 150ms ease;
    --transition-normal: 200ms ease;
}

/* ==================== Reset & Base ==================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.5;
    overflow-x: hidden;
}

a {
    color: var(--primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* ==================== Screens ==================== */
.screen {
    display: none;
    min-height: 100vh;
}

.screen.active {
    display: block;
}

/* ==================== Login Screen ==================== */
#login-screen {
    display: none;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e3a8a 0%, #3b82f6 100%);
    padding: 20px;
}

#login-screen.active {
    display: flex;
}

.login-container {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: var(--shadow-lg);
}

.login-logo {
    text-align: center;
    margin-bottom: 32px;
}

.logo-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.login-logo h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

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

.login-form .form-group {
    margin-bottom: 20px;
}

.login-form label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.login-form input,
.login-form select {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 15px;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.login-form input:focus,
.login-form select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.demo-note {
    text-align: center;
    font-size: 13px;
    color: var(--text-tertiary);
    margin-top: 16px;
}

/* ==================== App Layout ==================== */
#app-screen {
    display: none;
}

#app-screen.active {
    display: block;
}

/* ==================== Header ==================== */
.app-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}

.logo-small {
    display: flex;
    align-items: center;
    gap: 8px;
}

.logo-icon-small {
    font-size: 24px;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
}

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

.icon-btn {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    border-radius: var(--border-radius);
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.icon-btn:hover {
    background: var(--bg-tertiary);
}

.notification-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    min-width: 18px;
    height: 18px;
    background: var(--danger);
    color: white;
    font-size: 11px;
    font-weight: 600;
    border-radius: 9px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 5px;
}

.user-menu {
    position: relative;
}

.user-btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 6px 12px 6px 6px;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.user-btn:hover {
    background: var(--bg-tertiary);
}

.avatar {
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
}

.user-name {
    font-weight: 500;
    color: var(--text-primary);
}

.user-dropdown {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    width: 200px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-fast);
}

.user-dropdown.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

.user-role {
    font-size: 13px;
    color: var(--text-secondary);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 16px;
    color: var(--text-primary);
    text-decoration: none;
    transition: background var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--bg-tertiary);
    text-decoration: none;
}

/* ==================== Sidebar ==================== */
.sidebar {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: var(--sidebar-width);
    height: calc(100vh - var(--header-height));
    background: var(--bg-primary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    z-index: 90;
    transition: transform var(--transition-normal);
}

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 14px;
    color: var(--text-secondary);
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: var(--transition-fast);
    margin-bottom: 4px;
}

.nav-item:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    text-decoration: none;
}

.nav-item.active {
    background: var(--primary);
    color: white;
}

.nav-item span:last-child {
    font-weight: 500;
}

.nav-badge {
    margin-left: auto;
    min-width: 20px;
    height: 20px;
    background: var(--danger);
    color: white;
    font-size: 11px;
    font-weight: 600;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 6px;
}

.nav-item.active .nav-badge {
    background: rgba(255, 255, 255, 0.2);
}

.nav-divider {
    height: 1px;
    background: var(--border-color);
    margin: 12px 0;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border-color);
}

.sync-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.sync-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-tertiary);
}

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

/* ==================== Main Content ==================== */
.main-content {
    margin-left: var(--sidebar-width);
    margin-top: var(--header-height);
    padding: 24px;
    min-height: calc(100vh - var(--header-height));
}

.page {
    display: none;
}

.page.active {
    display: block;
    animation: fadeIn 0.2s ease;
}

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

.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 24px;
}

.page-header h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 4px;
}

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

.page-actions {
    display: flex;
    gap: 12px;
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 18px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--border-radius);
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
    text-decoration: none;
}

.btn:hover {
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

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

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

.btn-danger:hover {
    background: #dc2626;
}

.btn-block {
    width: 100%;
}

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    background: none;
    border: 1px solid var(--border-color);
}

.btn-icon:hover {
    background: var(--bg-tertiary);
}

/* ==================== Stats Grid ==================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
}

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

.stat-icon.blue {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
}

.stat-icon.orange {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.stat-icon.red {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.stat-icon.green {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success);
}

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

.stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.2;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
}

/* ==================== Cards ==================== */
.card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
}

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

.card-header h2 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-primary);
}

.card-link {
    font-size: 13px;
    font-weight: 500;
}

.card-content {
    padding: 16px 20px;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.dashboard-grid .full-width {
    grid-column: 1 / -1;
}

/* ==================== Alert List ==================== */
.alert-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.alert-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.alert-item.warning {
    background: rgba(245, 158, 11, 0.1);
}

.alert-item.danger {
    background: rgba(239, 68, 68, 0.1);
}

.alert-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.alert-dot.warning {
    background: var(--warning);
}

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

.alert-content {
    flex: 1;
    min-width: 0;
}

.alert-title {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 14px;
}

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

/* ==================== Event List ==================== */
.event-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.event-item {
    display: flex;
    gap: 12px;
    padding: 12px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.event-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: white;
    border-radius: var(--border-radius);
    flex-shrink: 0;
}

.event-date .day {
    font-size: 18px;
    font-weight: 700;
    line-height: 1;
}

.event-date .month {
    font-size: 10px;
    text-transform: uppercase;
    opacity: 0.8;
}

.event-info {
    flex: 1;
}

.event-title {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 14px;
}

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

/* ==================== Activity List ==================== */
.activity-list {
    display: flex;
    flex-direction: column;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    flex-shrink: 0;
}

.activity-icon.green {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success);
}

.activity-icon.orange {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.activity-icon.red {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.activity-content {
    flex: 1;
}

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

.activity-text strong {
    font-weight: 600;
}

.activity-time {
    font-size: 12px;
    color: var(--text-tertiary);
}

/* ==================== Inventory Page ==================== */
.inventory-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    flex: 1;
    max-width: 400px;
}

.search-box svg {
    color: var(--text-tertiary);
    flex-shrink: 0;
}

.search-box input {
    flex: 1;
    border: none;
    outline: none;
    font-size: 14px;
    background: transparent;
}

.filter-group {
    display: flex;
    gap: 12px;
}

.filter-group select {
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 14px;
    background: var(--bg-primary);
    cursor: pointer;
}

.inventory-table-container {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.inventory-table {
    width: 100%;
    border-collapse: collapse;
}

.inventory-table th,
.inventory-table td {
    padding: 14px 16px;
    text-align: left;
}

.inventory-table th {
    background: var(--bg-secondary);
    font-weight: 600;
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.inventory-table td {
    border-top: 1px solid var(--border-color);
    font-size: 14px;
}

.inventory-table tr:hover td {
    background: var(--bg-secondary);
}

.product-cell {
    display: flex;
    align-items: center;
    gap: 12px;
}

.product-icon {
    width: 40px;
    height: 40px;
    background: var(--bg-tertiary);
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.product-name {
    font-weight: 500;
    color: var(--text-primary);
}

.status-badge {
    display: inline-flex;
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.status-badge.in-stock {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success);
}

.status-badge.low-stock {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.status-badge.out-of-stock {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.action-btn {
    padding: 6px 12px;
    font-size: 13px;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-fast);
}

.action-btn:hover {
    background: var(--bg-tertiary);
}

.action-btn.primary {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

.action-btn.primary:hover {
    background: var(--primary-dark);
}

/* ==================== Calendar Page ==================== */
.calendar-container {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    padding: 24px;
}

.calendar-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin-bottom: 24px;
}

.calendar-header h2 {
    font-size: 20px;
    font-weight: 600;
    min-width: 200px;
    text-align: center;
}

.calendar-weekdays {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
    margin-bottom: 8px;
}

.calendar-weekdays span {
    text-align: center;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    padding: 8px;
}

.calendar-days {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 8px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
}

.calendar-day:hover {
    background: var(--bg-tertiary);
}

.calendar-day.other-month {
    opacity: 0.3;
}

.calendar-day.today {
    background: var(--primary);
    color: white;
}

.calendar-day .day-number {
    font-weight: 500;
    font-size: 14px;
}

.calendar-day .event-dots {
    display: flex;
    gap: 3px;
    margin-top: 4px;
}

.event-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.event-dot.delivery {
    background: var(--primary);
}

.event-dot.audit {
    background: var(--warning);
}

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

.event-dot.reminder {
    background: var(--info);
}

.calendar-legend {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

/* ==================== Alerts Page ==================== */
.alerts-container {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
}

.alert-tabs {
    display: flex;
    gap: 4px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.alert-tab {
    padding: 8px 16px;
    border: none;
    background: none;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: var(--transition-fast);
}

.alert-tab:hover {
    background: var(--bg-tertiary);
}

.alert-tab.active {
    background: var(--primary);
    color: white;
}

.alerts-list {
    padding: 16px 20px;
}

.full-alert-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    margin-bottom: 12px;
}

.full-alert-item:last-child {
    margin-bottom: 0;
}

.full-alert-item.unread {
    background: rgba(37, 99, 235, 0.05);
    border-left: 3px solid var(--primary);
}

.alert-icon-box {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.alert-icon-box.warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
}

.alert-icon-box.danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.alert-icon-box.success {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success);
}

.alert-body {
    flex: 1;
}

.alert-body h3 {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.alert-body p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.alert-timestamp {
    font-size: 12px;
    color: var(--text-tertiary);
}

.alert-actions {
    display: flex;
    gap: 8px;
}

/* ==================== Reports Page ==================== */
.reports-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.reports-grid .full-width {
    grid-column: 1 / -1;
}

.bar-chart {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.bar-item {
    display: flex;
    align-items: center;
    gap: 12px;
}

.bar-label {
    width: 100px;
    font-size: 14px;
    color: var(--text-secondary);
}

.bar-track {
    flex: 1;
    height: 24px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    background: var(--primary);
    border-radius: 4px;
    transition: width 0.5s ease;
}

.bar-value {
    width: 40px;
    font-weight: 600;
    color: var(--text-primary);
    text-align: right;
}

.donut-chart {
    display: flex;
    align-items: center;
    gap: 32px;
    justify-content: center;
}

.donut {
    width: 150px;
    height: 150px;
    transform: rotate(-90deg);
}

.donut-ring {
    fill: none;
    stroke: var(--bg-tertiary);
    stroke-width: 3;
}

.donut-segment {
    fill: none;
    stroke-width: 3;
    stroke-linecap: round;
}

.donut-segment.green {
    stroke: var(--success);
}

.donut-segment.orange {
    stroke: var(--warning);
}

.donut-segment.red {
    stroke: var(--danger);
}

.donut-legend {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.legend-row {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
}

.legend-row .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.dot.green { background: var(--success); }
.dot.orange { background: var(--warning); }
.dot.red { background: var(--danger); }

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th,
.data-table td {
    padding: 12px 16px;
    text-align: left;
    font-size: 14px;
}

.data-table th {
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border-color);
}

.data-table td {
    border-bottom: 1px solid var(--border-color);
}

.transaction-type {
    display: inline-flex;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 500;
}

.transaction-type.received {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success);
}

.transaction-type.usage {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

/* ==================== Users Page ==================== */
.users-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.user-card {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    padding: 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.user-avatar-large {
    width: 72px;
    height: 72px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 16px;
}

.user-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.user-card .user-email {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.user-role-badge {
    display: inline-flex;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 16px;
}

.user-role-badge.admin {
    background: rgba(37, 99, 235, 0.1);
    color: var(--primary);
}

.user-role-badge.assistant {
    background: rgba(34, 197, 94, 0.1);
    color: var(--success);
}

.user-role-badge.doctor {
    background: rgba(139, 92, 246, 0.1);
    color: #8b5cf6;
}

.user-card-actions {
    display: flex;
    gap: 8px;
}

/* ==================== Settings Page ==================== */
.settings-container {
    max-width: 800px;
}

.settings-section {
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-color);
    padding: 24px;
    margin-bottom: 20px;
}

.settings-section h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.settings-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 14px;
    transition: var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-hint {
    font-size: 12px;
    color: var(--text-tertiary);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.toggle-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.toggle {
    position: relative;
    display: inline-block;
    width: 48px;
    height: 26px;
}

.toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.toggle-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background: var(--bg-tertiary);
    border-radius: 26px;
    transition: var(--transition-fast);
}

.toggle-slider::before {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    left: 3px;
    bottom: 3px;
    background: white;
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-fast);
}

.toggle input:checked + .toggle-slider {
    background: var(--primary);
}

.toggle input:checked + .toggle-slider::before {
    transform: translateX(22px);
}

.category-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 16px;
}

.category-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
}

.category-item span {
    font-size: 14px;
}

.category-item button {
    padding: 4px 8px;
    font-size: 12px;
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
}

.category-item button:hover {
    color: var(--danger);
}

/* ==================== Modals ==================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 200;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
}

.modal-overlay.show {
    opacity: 1;
    visibility: visible;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    background: var(--bg-primary);
    border-radius: var(--border-radius-lg);
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    z-index: 201;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
}

.modal.show {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--text-tertiary);
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: var(--transition-fast);
}

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

.modal-body {
    padding: 24px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
}

/* Quantity Modal Specific */
.quantity-product-info {
    text-align: center;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    margin-bottom: 24px;
}

.quantity-product-info h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 4px;
}

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

.quantity-adjuster {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
}

.qty-btn {
    width: 48px;
    height: 48px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    font-size: 24px;
    cursor: pointer;
    transition: var(--transition-fast);
}

.qty-btn:hover {
    background: var(--bg-tertiary);
}

.qty-btn.minus { color: var(--danger); }
.qty-btn.plus { color: var(--success); }

.quantity-adjuster input {
    width: 100px;
    height: 48px;
    text-align: center;
    font-size: 24px;
    font-weight: 600;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

/* Scanner Modal Specific */
.scanner-preview {
    text-align: center;
    margin-bottom: 24px;
}

.scanner-frame {
    width: 100%;
    height: 200px;
    background: #111;
    border-radius: var(--border-radius);
    position: relative;
    overflow: hidden;
    margin-bottom: 12px;
}

.scanner-line {
    position: absolute;
    top: 0;
    left: 10%;
    right: 10%;
    height: 2px;
    background: var(--danger);
    box-shadow: 0 0 10px var(--danger);
    animation: scan 2s linear infinite;
}

@keyframes scan {
    0% { top: 10%; }
    50% { top: 90%; }
    100% { top: 10%; }
}

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

.scanner-manual {
    text-align: center;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.scanner-manual p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 12px;
}

.manual-input-row {
    display: flex;
    gap: 12px;
}

.manual-input-row input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 14px;
}

/* ==================== Toast Notifications ==================== */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    z-index: 300;
}

.toast {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: var(--bg-primary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    border-left: 4px solid var(--primary);
    animation: slideIn 0.3s ease;
    max-width: 360px;
}

.toast.success { border-left-color: var(--success); }
.toast.warning { border-left-color: var(--warning); }
.toast.error { border-left-color: var(--danger); }

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

.toast-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
}

.toast.success .toast-icon { color: var(--success); }
.toast.warning .toast-icon { color: var(--warning); }
.toast.error .toast-icon { color: var(--danger); }

.toast-content {
    flex: 1;
}

.toast-title {
    font-weight: 600;
    font-size: 14px;
    color: var(--text-primary);
}

.toast-message {
    font-size: 13px;
    color: var(--text-secondary);
}

/* ==================== Admin-only Elements ==================== */
.admin-only {
    display: none;
}

body.role-admin .admin-only {
    display: flex;
}

body.role-admin .nav-divider.admin-only {
    display: block;
}

/* ==================== Doctor Role Restrictions ==================== */
body.role-doctor .action-btn.primary {
    display: none;
}

/* ==================== Responsive Design ==================== */
@media (max-width: 1024px) {
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .dashboard-grid {
        grid-template-columns: 1fr;
    }

    .reports-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .page-header {
        flex-direction: column;
        gap: 16px;
    }

    .page-actions {
        width: 100%;
    }

    .page-actions .btn {
        flex: 1;
    }

    .inventory-toolbar {
        flex-direction: column;
    }

    .search-box {
        max-width: none;
    }

    .filter-group {
        width: 100%;
    }

    .filter-group select {
        flex: 1;
    }

    .inventory-table-container {
        overflow-x: auto;
    }

    .inventory-table {
        min-width: 700px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .user-name {
        display: none;
    }

    .calendar-legend {
        flex-wrap: wrap;
        gap: 12px;
    }

    .donut-chart {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .stat-card {
        padding: 16px;
    }

    .main-content {
        padding: 16px;
    }

    .login-container {
        padding: 24px;
    }

    .calendar-day {
        padding: 4px;
    }

    .calendar-day .day-number {
        font-size: 12px;
    }
}