:root {
    --primary-color: #0055a4;
    --primary-light: #3378bb;
    --primary-dark: #003b72;
    --accent-color: #ff9800;
    --success-color: #4CAF50;
    --warning-color: #FFC107;
    --danger-color: #F44336;
    --text-color: #333333;
    --text-light: #666666;
    --text-lighter: #999999;
    --border-color: #e0e0e0;
    --background-color: #f5f8fa;
    --card-background: #ffffff;
    --sidebar-width: 240px;
    --sidebar-collapsed-width: 60px;
    --header-height: 60px;
    --transition: all 0.3s ease;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 12px;
    --font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
}

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

body {
    font-family: var(--font-family);
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

.hidden {
    display: none !important;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    margin-bottom: 0.5rem;
}

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

button {
    cursor: pointer;
    font-family: var(--font-family);
}

input, select, textarea {
    font-family: var(--font-family);
}

/* Login Page Styles */
.container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: var(--background-color);
    background-image: linear-gradient(135deg, rgba(0,85,164,0.1) 0%, rgba(255,255,255,0) 100%);
}

.login-form {
    width: 400px;
    padding: 2.5rem;
    background-color: var(--card-background);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

.login-form .logo {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 2rem;
}

.login-form .logo h1 {
    margin-top: 1rem;
    color: var(--primary-color);
    font-size: 1.8rem;
}

.login-form h2 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

.input-group {
    margin-bottom: 1.5rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-weight: 500;
}

.input-group input, 
.input-group select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    transition: var(--transition);
}

.input-group input:focus, 
.input-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(0,85,164,0.2);
}

.primary-btn {
    display: block;
    width: 100%;
    padding: 0.75rem;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

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

.login-footer {
    margin-top: 1.5rem;
    text-align: center;
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Main Application Layout */
#main-app {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* Sidebar Styles */
.sidebar {
    width: var(--sidebar-width);
    height: 100%;
    background-color: var(--card-background);
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
    z-index: 10;
}

.sidebar .logo {
    display: flex;
    align-items: center;
    padding: 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.sidebar .logo h2 {
    color: var(--primary-color);
    margin-left: 0.75rem;
    font-size: 1.2rem;
    margin-bottom: 0;
}

.user-info {
    display: flex;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.user-avatar {
    margin-right: 0.75rem;
}

.user-details p {
    margin: 0;
}

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

.user-details #user-role {
    font-size: 0.85rem;
    color: var(--text-light);
}

.menu {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}

.menu ul {
    list-style: none;
}

.menu li {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    margin: 0.25rem 0;
    color: var(--text-color);
    cursor: pointer;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.menu li.active {
    background-color: rgba(0,85,164,0.1);
    color: var(--primary-color);
    border-left-color: var(--primary-color);
}

.menu li:hover {
    background-color: rgba(0,0,0,0.05);
}

.menu li svg {
    margin-right: 0.75rem;
}

.logout {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
}

.logout button {
    display: flex;
    align-items: center;
    width: 100%;
    padding: 0.75rem;
    background-color: transparent;
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.logout button:hover {
    background-color: var(--background-color);
}

.logout button svg {
    margin-right: 0.5rem;
}

/* Main Content Styles */
.main-content {
    flex: 1;
    overflow-y: auto;
    height: 100vh;
    background-color: var(--background-color);
}

.top-bar {
    height: var(--header-height);
    background-color: var(--card-background);
    border-bottom: 1px solid var(--border-color);
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.search-box {
    display: flex;
    align-items: center;
    background-color: var(--background-color);
    border-radius: var(--border-radius-sm);
    padding: 0.5rem 1rem;
    width: 300px;
}

.search-box svg {
    color: var(--text-lighter);
    margin-right: 0.5rem;
}

.search-box input {
    border: none;
    background: transparent;
    width: 100%;
    outline: none;
}

.notifications {
    position: relative;
}

.notification-btn {
    background: none;
    border: none;
    position: relative;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

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

.notification-badge {
    position: absolute;
    top: 5px;
    right: 5px;
    background-color: var(--danger-color);
    color: white;
    font-size: 0.7rem;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.notification-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    width: 320px;
    background-color: var(--card-background);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    overflow: hidden;
}

.notification-item {
    display: flex;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.notification-item:hover {
    background-color: rgba(0,0,0,0.02);
}

.notification-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
}

.notification-icon.alert {
    background-color: rgba(244,67,54,0.1);
    color: var(--danger-color);
}

.notification-icon.document {
    background-color: rgba(33,150,243,0.1);
    color: #2196F3;
}

.notification-icon.task {
    background-color: rgba(76,175,80,0.1);
    color: var(--success-color);
}

.notification-content {
    flex: 1;
}

.notification-title {
    font-weight: 500;
    margin: 0;
}

.notification-desc {
    color: var(--text-light);
    margin: 0.25rem 0;
    font-size: 0.9rem;
}

.notification-time {
    color: var(--text-lighter);
    font-size: 0.8rem;
}

.view-all {
    display: block;
    text-align: center;
    padding: 0.75rem;
    background-color: var(--background-color);
    color: var(--primary-color);
    font-weight: 500;
}

/* Content Section Styles */
.content-section {
    padding: 1.5rem;
}

.content-section h1 {
    margin-bottom: 1.5rem;
    color: var(--text-color);
}

/* Dashboard Styles */
.dashboard-stats {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-card {
    background-color: var(--card-background);
    border-radius: var(--border-radius-md);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
}

.stat-icon.clients {
    background-color: rgba(33,150,243,0.1);
    color: #2196F3;
}

.stat-icon.tasks {
    background-color: rgba(255,152,0,0.1);
    color: #FF9800;
}

.stat-icon.documents {
    background-color: rgba(156,39,176,0.1);
    color: #9C27B0;
}

.stat-icon.billing {
    background-color: rgba(76,175,80,0.1);
    color: #4CAF50;
}

.stat-info {
    flex: 1;
}

.stat-info h3 {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 0.25rem;
}

.stat-number {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
}

.stat-change {
    font-size: 0.8rem;
    color: var(--text-light);
    margin: 0;
}

.dashboard-widgets {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.widget {
    background-color: var(--card-background);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.widget-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.widget-header h3 {
    font-size: 1rem;
    margin-bottom: 0;
}

.view-all-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    font-size: 0.85rem;
    cursor: pointer;
}

/* Task Widget Styles */
.task-list {
    padding: 0.5rem 0;
}

.task-item {
    display: flex;
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

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

.task-date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    width: 50px;
    margin-right: 1rem;
}

.task-date .day {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-color);
}

.task-date .month {
    font-size: 0.8rem;
    color: var(--text-light);
}

.task-details {
    flex: 1;
}

.task-details h4 {
    font-size: 0.95rem;
    margin-bottom: 0.25rem;
}

.task-details p {
    font-size: 0.85rem;
    color: var(--text-light);
    margin: 0;
}

.task-status {
    display: flex;
    align-items: center;
}

.badge {
    padding: 0.25rem 0.5rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

.badge.urgent {
    background-color: rgba(244,67,54,0.1);
    color: var(--danger-color);
}

.badge.normal {
    background-color: rgba(33,150,243,0.1);
    color: #2196F3;
}

/* Chart Widget Styles */
.chart-container {
    padding: 1rem;
    height: 250px;
}

.chart-container.donut {
    display: flex;
    justify-content: center;
    height: 200px;
}

#chart-period {
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background-color: var(--card-background);
    font-size: 0.85rem;
}

/* Document Widget Styles */
.document-list {
    padding: 0.5rem 0;
}

.document-item {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

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

.document-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
}

.document-icon.pdf {
    background-color: rgba(244,67,54,0.1);
    color: #F44336;
}

.document-icon.excel {
    background-color: rgba(76,175,80,0.1);
    color: #4CAF50;
}

.document-icon.doc {
    background-color: rgba(33,150,243,0.1);
    color: #2196F3;
}

.document-details {
    flex: 1;
}

.document-details h4 {
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.document-details p {
    font-size: 0.8rem;
    color: var(--text-light);
    margin: 0;
}

.document-action-btn {
    background: none;
    border: none;
    color: var(--text-light);
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

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

/* Chart Legend Styles */
.chart-legend {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    padding: 0 1rem 1rem;
}

.legend-item {
    display: flex;
    align-items: center;
    font-size: 0.85rem;
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 0.5rem;
}

/* Clients Section Styles */
.action-bar {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1.5rem;
}

.action-button {
    display: flex;
    align-items: center;
    padding: 0.5rem 1rem;
    background-color: var(--card-background);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

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

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

.action-button:not(.primary):hover {
    background-color: var(--background-color);
}

.action-button svg {
    margin-right: 0.5rem;
}

.action-group {
    display: flex;
    gap: 0.75rem;
}

.filter-group {
    display: flex;
    gap: 0.75rem;
}

.filter-group select {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-sm);
    background-color: var(--card-background);
    font-size: 0.9rem;
}

.clients-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.client-card {
    background-color: var(--card-background);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.client-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem;
    background-color: var(--primary-color);
    color: white;
}

.client-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: rgba(255,255,255,0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.client-actions {
    display: flex;
}

.client-action-btn {
    background: none;
    border: none;
    color: white;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.client-action-btn:hover {
    background-color: rgba(255,255,255,0.1);
}

.client-info {
    padding: 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.client-info h3 {
    margin-bottom: 0.5rem;
}

.client-type {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 1rem;
}

.client-contact p {
    display: flex;
    align-items: center;
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.client-contact p svg {
    margin-right: 0.5rem;
}

.client-stats {
    display: flex;
    padding: 1rem 1.25rem;
}

.client-stat {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-bottom: 0.25rem;
}

.stat-value {
    font-size: 1.1rem;
    font-weight: 500;
}

.stat-badge {
    padding: 0.25rem 0.5rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 500;
}

.stat-badge.success {
    background-color: rgba(76,175,80,0.1);
    color: var(--success-color);
}

.stat-badge.warning {
    background-color: rgba(255,193,7,0.1);
    color: var(--warning-color);
}

.stat-badge.danger {
    background-color: rgba(244,67,54,0.1);
    color: var(--danger-color);
}

/* Tasks Section Styles */
.task-boards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.task-column {
    background-color: var(--card-background);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.column-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.column-header h3 {
    font-size: 1rem;
    margin-bottom: 0;
}

.task-count {
    background-color: var(--background-color);
    padding: 0.25rem 0.5rem;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-light);
}

.task-card {
    margin: 0.75rem;
    background-color: var(--card-background);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-color);
    overflow: hidden;
    display: flex;
    cursor: grab;
}

.task-priority {
    width: 4px;
}

.task-priority.high {
    background-color: var(--danger-color);
}

.task-priority.medium {
    background-color: var(--warning-color);
}

.task-priority.low {
    background-color: var(--success-color);
}

.task-content {
    flex: 1;
    padding: 1rem;
}

.task-content h4 {
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.task-content p {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 0.75rem;
}

.task-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.task-client, .task-deadline, .task-completed {
    font-size: 0.75rem;
    color: var(--text-lighter);
}

.task-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.task-assignee {
    display: flex;
    align-items: center;
}

.assignee-avatar {
    margin-right: 0.5rem;
}

.task-assignee span {
    font-size: 0.8rem;
    color: var(--text-light);
}

.task-action-btn {
    background: none;
    border: none;
    color: var(--text-light);
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

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

/* Documents Section Styles */
.document-container {
    background-color: var(--card-background);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    margin-bottom: 1.5rem;
}

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

.document-table th, 
.document-table td {
    padding: 0.75rem 1rem;
    text-align: left;
}

.document-table th {
    background-color: var(--background-color);
    font-weight: 500;
    color: var(--text-light);
    border-bottom: 1px solid var(--border-color);
}

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

.document-table tr:last-child {
    border-bottom: none;
}

.th-checkbox, 
.th-actions {
    width: 60px;
}

.th-type, 
.th-status {
    width: 120px;
}

.th-date, 
.th-client {
    width: 150px;
}

.doc-name {
    display: flex;
    align-items: center;
}

.doc-status {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 20px;
    font-size: 0.75rem;
}

.doc-status.approved {
    background-color: rgba(76,175,80,0.1);
    color: var(--success-color);
}

.doc-status.pending {
    background-color: rgba(255,193,7,0.1);
    color: var(--warning-color);
}

.doc-status.rejected {
    background-color: rgba(244,67,54,0.1);
    color: var(--danger-color);
}

.action-buttons {
    display: flex;
    gap: 0.5rem;
}

.icon-button {
    background: none;
    border: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.icon-button.view {
    color: #2196F3;
}

.icon-button.download {
    color: var(--success-color);
}

.icon-button.edit {
    color: var(--warning-color);
}

.icon-button.more {
    color: var(--text-light);
}

.icon-button:hover {
    background-color: var(--background-color);
}

/* Pagination Styles */
.pagination {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 1.5rem;
}

.pagination-btn {
    width: 32px;
    height: 32px;
    border: 1px solid var(--border-color);
    background-color: var(--card-background);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.85rem;
    cursor: pointer;
    transition: var(--transition);
}

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

.pagination-btn:not(.active):hover {
    background-color: var(--background-color);
}

.pagination-dots {
    display: flex;
    align-items: center;
    color: var(--text-light);
}

/* Billing Section Styles */
.billing-dashboard {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.billing-overview {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.billing-card {
    background-color: var(--card-background);
    border-radius: var(--border-radius-md);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
}

.billing-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 1rem;
}

.billing-icon.total {
    background-color: rgba(33,150,243,0.1);
    color: #2196F3;
}

.billing-icon.pending {
    background-color: rgba(255,193,7,0.1);
    color: var(--warning-color);
}

.billing-icon.overdue {
    background-color: rgba(244,67,54,0.1);
    color: var(--danger-color);
}

.billing-icon.collected {
    background-color: rgba(76,175,80,0.1);
    color: var(--success-color);
}

.billing-info {
    flex: 1;
}

.billing-info h3 {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 0.25rem;
}

.billing-amount {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-color);
    margin: 0;
}

.billing-period {
    font-size: 0.8rem;
    color: var(--text-light);
    margin: 0;
}

.invoice-table-container {
    background-color: var(--card-background);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

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

.invoice-table th, 
.invoice-table td {
    padding: 0.75rem 1rem;
    text-align: left;
}

.invoice-table th {
    background-color: var(--background-color);
    font-weight: 500;
    color: var(--text-light);
    border-bottom: 1px solid var(--border-color);
}

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

.invoice-table tr:last-child {
    border-bottom: none;
}

.invoice-number {
    font-weight: 500;
}

.invoice-amount {
    font-weight: 500;
}

.invoice-status {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: 20px;
    font-size: 0.75rem;
}

.invoice-status.paid {
    background-color: rgba(76,175,80,0.1);
    color: var(--success-color);
}

.invoice-status.pending {
    background-color: rgba(255,193,7,0.1);
    color: var(--warning-color);
}

.invoice-status.overdue {
    background-color: rgba(244,67,54,0.1);
    color: var(--danger-color);
}

.icon-button.send {
    color: var(--primary-color);
}

/* Chat Section Styles */
.chat-container {
    display: flex;
    height: calc(100vh - 140px);
    background-color: var(--card-background);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.chat-sidebar {
    width: 320px;
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.chat-search {
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    background-color: var(--background-color);
}

.chat-search svg {
    color: var(--text-lighter);
    margin-right: 0.5rem;
}

.chat-search input {
    border: none;
    background: transparent;
    width: 100%;
    outline: none;
}

.chat-conversations {
    flex: 1;
    overflow-y: auto;
}

.conversation-item {
    display: flex;
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.conversation-item.active {
    background-color: rgba(0,85,164,0.05);
}

.conversation-item:hover:not(.active) {
    background-color: rgba(0,0,0,0.02);
}

.conversation-avatar {
    margin-right: 0.75rem;
}

.conversation-avatar.group {
    border-radius: 8px;
    overflow: hidden;
}

.conversation-details {
    flex: 1;
}

.conversation-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.25rem;
}

.conversation-header h4 {
    font-size: 0.95rem;
    margin-bottom: 0;
}

.conversation-time {
    font-size: 0.75rem;
    color: var(--text-lighter);
}

.conversation-last-message {
    font-size: 0.85rem;
    color: var(--text-light);
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 220px;
}

.unread-count {
    position: absolute;
    right: 1rem;
    bottom: 1rem;
    background-color: var(--primary-color);
    color: white;
    font-size: 0.7rem;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
}

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

.chat-contact {
    display: flex;
    align-items: center;
}

.contact-info {
    margin-left: 0.75rem;
}

.contact-info h3 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.contact-info p {
    font-size: 0.8rem;
    color: var(--text-light);
    margin: 0;
}

.chat-actions {
    display: flex;
    gap: 0.5rem;
}

.chat-action-btn {
    background: none;
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    transition: var(--transition);
}

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

.chat-messages {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    background-color: var(--background-color);
}

.chat-date-divider {
    text-align: center;
    margin: 1rem 0;
}

.chat-date-divider span {
    background-color: rgba(0,0,0,0.05);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--text-light);
}

.message {
    display: flex;
    margin-bottom: 1rem;
}

.message.sent {
    justify-content: flex-end;
}

.message.typing {
    opacity: 0.7;
}

.message-avatar {
    margin-right: 0.75rem;
    align-self: flex-end;
}

.message-content {
    max-width: 70%;
}

.message-bubble {
    padding: 0.75rem 1rem;
    border-radius: var(--border-radius-md);
    position: relative;
}

.message.received .message-bubble {
    background-color: var(--card-background);
    border-bottom-left-radius: 4px;
}

.message.sent .message-bubble {
    background-color: var(--primary-light);
    color: white;
    border-bottom-right-radius: 4px;
}

.message-bubble p {
    margin: 0;
}

.message-time {
    font-size: 0.7rem;
    color: var(--text-lighter);
    margin-top: 0.25rem;
    display: block;
}

.message.sent .message-time {
    text-align: right;
}

.typing-indicator {
    display: flex;
    padding: 0.25rem 0;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background-color: var(--text-lighter);
    border-radius: 50%;
    margin: 0 1px;
    animation: typing 1s infinite ease-in-out;
}

.typing-indicator span:nth-child(1) {
    animation-delay: 0s;
}

.typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
    100% { transform: translateY(0); }
}

.file-message {
    display: flex;
    align-items: center;
}

.file-icon {
    margin-right: 0.75rem;
}

.file-details .file-name {
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.file-details .file-size {
    font-size: 0.75rem;
    margin: 0;
    opacity: 0.8;
}

.chat-input-container {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
}

.chat-attach-btn,
.chat-send-btn {
    background: none;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-light);
    transition: var(--transition);
}

.chat-attach-btn:hover,
.chat-send-btn:hover {
    background-color: var(--background-color);
    color: var(--primary-color);
}

.chat-input-container input {
    flex: 1;
    border: none;
    background-color: var(--background-color);
    padding: 0.75rem 1rem;
    border-radius: 20px;
    margin: 0 0.5rem;
    outline: none;
}

/* Depreciation Calculator Styles */
.asset-form {
    background-color: var(--card-background);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.form-group {
    flex: 1;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-color);
    font-weight: 500;
}

.calculate-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: var(--border-radius-sm);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

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

.result-card {
    background-color: var(--card-background);
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
    margin-top: 1.5rem;
}

.result-card h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.result-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
}

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

.result-label {
    font-weight: 500;
}

.result-value {
    font-weight: 600;
}

.result-item.highlight {
    background-color: rgba(0,85,164,0.05);
    padding: 0.75rem;
    border-radius: var(--border-radius-sm);
    margin-top: 0.5rem;
}

.depreciation-chart-container {
    height: 300px;
    margin-top: 1.5rem;
}

/* Responsive Adjustments */
@media (max-width: 1200px) {
    .dashboard-widgets {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 992px) {
    .task-boards {
        grid-template-columns: 1fr;
    }
    
    .sidebar {
        width: var(--sidebar-collapsed-width);
    }
    
    .sidebar .logo h2,
    .user-details,
    .menu li span,
    .logout button span {
        display: none;
    }
    
    .menu li {
        justify-content: center;
        padding: 0.75rem;
    }
    
    .menu li svg {
        margin-right: 0;
    }
    
    .chat-container {
        flex-direction: column;
        height: auto;
    }
    
    .chat-sidebar {
        width: 100%;
        height: 300px;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
}

@media (max-width: 768px) {
    .login-form {
        width: 90%;
        max-width: 400px;
    }
    
    .dashboard-stats,
    .clients-grid {
        grid-template-columns: 1fr;
    }
    
    .action-bar {
        flex-direction: column;
        gap: 1rem;
    }
    
    .filter-group {
        width: 100%;
    }
    
    .document-table th:not(.th-name):not(.th-actions),
    .document-table td:not(:nth-child(2)):not(:last-child),
    .invoice-table th:not(.th-number):not(.th-amount):not(.th-status):not(.th-actions),
    .invoice-table td:not(:nth-child(2)):not(:nth-child(6)):not(:nth-child(7)):not(:last-child) {
        display: none;
    }
}

@media (max-width: 576px) {
    .top-bar {
        padding: 0 1rem;
    }
    
    .search-box {
        width: 200px;
    }
    
    .content-section {
        padding: 1rem;
    }
}