/* General Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --secondary-hover: #475569;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #0ea5e9;
    --light-bg: #f1f5f9;
    --border-color: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

body {
    background-color: var(--light-bg);
    color: var(--text-primary);
    line-height: 1.5;
}

.container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styles */
.sidebar {
    width: 250px;
    background-color: var(--white);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    box-shadow: var(--shadow);
    z-index: 100;
}

.logo {
    padding: 1.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    font-size: 1.8rem;
}

.menu {
    list-style: none;
    padding: 1rem 0;
    flex-grow: 1;
}

.menu li {
    margin-bottom: 0.25rem;
}

.menu li a {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: var(--text-primary);
    text-decoration: none;
    transition: background-color 0.2s, color 0.2s;
    border-radius: 0.25rem;
    margin: 0 0.5rem;
    font-weight: 500;
}

.menu li a:hover {
    background-color: var(--light-bg);
    color: var(--primary-color);
}

.menu li.active a {
    background-color: #e0e7ff;
    color: var(--primary-color);
    font-weight: 600;
}

.menu-icon {
    margin-right: 0.75rem;
    font-size: 1.25rem;
    width: 24px;
    text-align: center;
}

.user-profile {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-avatar {
    width: 40px;
    height: 40px;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

.user-info {
    overflow: hidden;
}

.user-name {
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

/* Main Content Styles */
.main-content {
    flex: 1;
    margin-left: 250px;
    padding: 0;
    display: flex;
    flex-direction: column;
}

/* Header Styles */
.header {
    background-color: var(--white);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 10;
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 600;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.search-container {
    position: relative;
    width: 300px;
}

.search-container input {
    width: 100%;
    padding: 0.5rem 1rem 0.5rem 2.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
    font-size: 0.9rem;
}

.search-container i {
    position: absolute;
    left: 0.75rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.notification-bell {
    position: relative;
    cursor: pointer;
}

.notification-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background-color: var(--danger-color);
    color: var(--white);
    font-size: 0.7rem;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
}

/* Content View Styles */
.content-view {
    padding: 1.5rem;
    display: none;
}

.active-view {
    display: block;
}

/* Action Bar Styles */
.action-bar {
    background-color: var(--white);
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    box-shadow: var(--shadow);
}

.filters {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.filter-group label {
    font-weight: 500;
    white-space: nowrap;
}

.filter-group select,
.filter-group input {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
    font-size: 0.9rem;
}

.date-range {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

/* Button Styles */
.primary-btn,
.secondary-btn,
.danger-btn {
    padding: 0.5rem 1rem;
    border-radius: 0.25rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background-color 0.2s;
    border: none;
    font-size: 0.9rem;
}

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

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

.secondary-btn {
    background-color: var(--white);
    color: var(--secondary-color);
    border: 1px solid var(--border-color);
}

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

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

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

.icon-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    padding: 0.25rem;
    border-radius: 0.25rem;
    transition: background-color 0.2s, color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-btn:hover {
    background-color: var(--light-bg);
    color: var(--primary-color);
}

.icon-btn.delete-btn:hover {
    color: var(--danger-color);
}

/* Table Styles */
.table-container {
    background-color: var(--white);
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table th,
.data-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background-color: #f8fafc;
    font-weight: 600;
    color: var(--text-secondary);
}

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

.data-table tr:hover td {
    background-color: #f8fafc;
}

.status-badge {
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    display: inline-block;
    min-width: 80px;
    text-align: center;
}

.status-badge.draft {
    background-color: #e2e8f0;
    color: #475569;
}

.status-badge.in-progress {
    background-color: #e0f2fe;
    color: #0284c7;
}

.status-badge.pending-review {
    background-color: #fef3c7;
    color: #d97706;
}

.status-badge.approved {
    background-color: #d1fae5;
    color: #059669;
}

.status-badge.rejected {
    background-color: #fee2e2;
    color: #b91c1c;
}

.progress-bar {
    height: 8px;
    background-color: #e2e8f0;
    border-radius: 4px;
    overflow: hidden;
    position: relative;
    width: 100%;
    max-width: 150px;
}

.progress {
    height: 100%;
    background-color: var(--primary-color);
    border-radius: 4px;
}

.progress-bar span {
    position: absolute;
    right: 0;
    top: 10px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

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

/* Pagination Styles */
.pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background-color: var(--white);
    border-radius: 0.5rem;
    box-shadow: var(--shadow);
}

.pagination-info {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.pagination-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pagination-btn {
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--border-color);
    background-color: var(--white);
    border-radius: 0.25rem;
    cursor: pointer;
    color: var(--text-primary);
}

.pagination-btn:disabled {
    cursor: not-allowed;
    opacity: 0.5;
}

.page-numbers {
    display: flex;
    gap: 0.25rem;
}

.page-number {
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
    background-color: var(--white);
    cursor: pointer;
    font-size: 0.9rem;
}

.page-number.active {
    background-color: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    overflow-y: auto;
    padding: 1rem;
}

.modal-content {
    background-color: var(--white);
    margin: 2rem auto;
    border-radius: 0.5rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    max-width: 500px;
    width: 100%;
    position: relative;
}

.large-modal {
    max-width: 900px;
}

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

.modal-header h2 {
    font-size: 1.25rem;
    font-weight: 600;
}

.modal-actions {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.close-modal {
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    line-height: 1;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
}

/* Form Styles */
.form-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
    overflow-x: auto;
    padding-bottom: 1px;
}

.form-tab {
    padding: 0.75rem 1rem;
    font-weight: 500;
    border: none;
    background: none;
    color: var(--text-secondary);
    cursor: pointer;
    white-space: nowrap;
    position: relative;
}

.form-tab.active {
    color: var(--primary-color);
}

.form-tab.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary-color);
}

.tab-content {
    display: none;
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-row {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.25rem;
}

.form-group.half {
    flex: 1;
    margin-bottom: 0;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

input[type="text"],
input[type="number"],
input[type="date"],
input[type="datetime-local"],
select,
textarea {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
    font-size: 0.9rem;
}

textarea {
    resize: vertical;
    min-height: 80px;
}

.input-with-unit {
    display: flex;
    gap: 0.5rem;
}

.input-with-unit input {
    flex: 1;
}

.input-with-unit select {
    width: 100px;
}

.form-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

/* Form Table Styles */
.table-actions {
    margin-bottom: 1rem;
    display: flex;
    justify-content: flex-end;
}

.form-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.form-table th,
.form-table td {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
}

.form-table th {
    background-color: #f8fafc;
    font-weight: 600;
}

.form-table td input,
.form-table td select,
.form-table td textarea {
    border: 1px solid #e5e7eb;
    padding: 0.4rem;
    width: 100%;
    font-size: 0.9rem;
}

.form-table td textarea {
    min-height: 60px;
}

/* Approvals Section */
.approvals-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.approval-role {
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
}

.approval-role h3 {
    margin-bottom: 1rem;
    font-size: 1rem;
    color: var(--text-primary);
}

/* Responsive Styles */
@media (max-width: 1024px) {
    .filters {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .action-bar {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .action-buttons {
        width: 100%;
        justify-content: flex-end;
        margin-top: 1rem;
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: 200px;
    }
    
    .main-content {
        margin-left: 200px;
    }
    
    .header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .header-actions {
        width: 100%;
        margin-top: 1rem;
    }
    
    .search-container {
        width: 100%;
    }
    
    .approvals-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        position: fixed;
        top: 0;
        left: 0;
        z-index: 1000;
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .header {
        padding: 0.75rem;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .form-row {
        flex-direction: column;
        gap: 1.25rem;
    }
    
    .pagination {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Utility Classes */
.hidden {
    display: none;
}

.flex {
    display: flex;
}

.items-center {
    align-items: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-2 {
    gap: 0.5rem;
}

/* Animation for loading states */
@keyframes pulse {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
}

.loading {
    animation: pulse 1.5s infinite ease-in-out;
}