:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --background-color: #f8fafc;
    --text-color: #1e293b;
    --border-color: #e2e8f0;
    --success-color: #10b981;
    --error-color: #ef4444;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--background-color);
}

header {
    background-color: white;
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

#nav-links {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

#nav-links a {
    text-decoration: none;
    color: var(--secondary-color);
    font-weight: 500;
    transition: color 0.2s;
}

#nav-links a:hover {
    color: var(--primary-color);
}

main {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 1rem;
    min-height: calc(100vh - 160px);
}

footer {
    text-align: center;
    padding: 2rem;
    color: var(--secondary-color);
    border-top: 1px solid var(--border-color);
}

.hero {
    text-align: center;
    padding: 4rem 1rem;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.cta-buttons {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: opacity 0.2s;
    border: none;
    text-decoration: none;
}

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

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

.btn-warning {
    background-color: #f0ad4e;
    color: white;
}

.btn-danger {
    background-color: #d9534f;
    color: white;
}

.btn-link {
    background: none;
    color: var(--primary-color);
    padding: 0;
}

.btn:hover {
    opacity: 0.9;
}

.form-container {
    max-width: 500px;
    margin: 0 auto;
    background: white;
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

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

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

.form-group input, .form-group select, .form-group textarea {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 0.25rem;
}

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

.checkbox-group input {
    width: auto;
}

.profile-container, .search-container, .requests-container {
    background: white;
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

fieldset {
    border: 1px solid var(--border-color);
    padding: 1rem;
    margin-bottom: 2rem;
    border-radius: 0.5rem;
}

legend {
    font-weight: bold;
    padding: 0 0.5rem;
}

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

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.card {
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    border-radius: 0.5rem;
    background: white;
}

.card h3 {
    margin-bottom: 0.5rem;
}

.request-card {
    border-left: 4px solid var(--primary-color);
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.hidden {
    display: none !important;
}

/* Job Cards */
.job-card {
    border-left: 4px solid var(--primary-color);
    transition: box-shadow 0.2s;
}

.job-card:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.job-company {
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.job-location {
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.job-salary {
    font-weight: 600;
    color: var(--success-color);
    margin-bottom: 0.5rem;
}

.job-description {
    font-size: 0.9rem;
    color: #475569;
    margin-bottom: 0.5rem;
}

.job-type-badge {
    display: inline-block;
    background: #e0e7ff;
    color: var(--primary-color);
    font-size: 0.75rem;
    padding: 0.15rem 0.5rem;
    border-radius: 1rem;
    vertical-align: middle;
    text-transform: capitalize;
}

.job-requirements {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    margin-top: 0.5rem;
}

.req-tag {
    background: #f1f5f9;
    border: 1px solid var(--border-color);
    font-size: 0.75rem;
    padding: 0.15rem 0.5rem;
    border-radius: 0.25rem;
    color: var(--secondary-color);
}

/* Mindmap / Tree Diagram */
.mindmap {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    padding: 2rem 0;
    margin-bottom: 2rem;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    min-height: 180px;
}

.mindmap:last-child {
    border-bottom: none;
}

.mindmap-side {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex: 1;
    max-width: 280px;
}

.mindmap-left {
    align-items: flex-end;
}

.mindmap-right {
    align-items: flex-start;
}

.mindmap-center {
    flex-shrink: 0;
}

.mindmap-job-node {
    background: var(--primary-color);
    color: white;
    padding: 1.25rem 1.5rem;
    border-radius: 0.75rem;
    text-align: center;
    min-width: 180px;
    box-shadow: 0 4px 12px rgba(37,99,235,0.3);
}

.mindmap-job-node h3 {
    margin-bottom: 0.25rem;
    color: white;
}

.mindmap-job-node p {
    font-size: 0.85rem;
    opacity: 0.9;
}

.mindmap-status {
    display: inline-block;
    font-size: 0.7rem;
    padding: 0.1rem 0.5rem;
    border-radius: 1rem;
    margin-top: 0.5rem;
    text-transform: uppercase;
    font-weight: 700;
}

.mindmap-status.active {
    background: var(--success-color);
    color: white;
}

.mindmap-status.hidden {
    background: var(--secondary-color);
    color: white;
}

.mindmap-applicant-node {
    background: white;
    border: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    cursor: pointer;
    transition: box-shadow 0.2s, border-color 0.2s;
    max-width: 260px;
    min-width: 160px;
}

.mindmap-applicant-node:hover {
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    border-color: var(--primary-color);
}

.mindmap-applicant-node strong {
    font-size: 0.85rem;
}

.mindmap-applicant-node p {
    font-size: 0.8rem;
    color: var(--secondary-color);
    margin-top: 0.25rem;
}

.match-score {
    float: right;
    background: #dcfce7;
    color: #166534;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.1rem 0.4rem;
    border-radius: 0.25rem;
}

.mindmap-connectors {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
}

.mindmap-side, .mindmap-center {
    z-index: 1;
}

.container {
    background: white;
    padding: 2rem;
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

/* Job Detail */
.job-detail-card {
    border-left: 4px solid var(--primary-color);
}

.job-detail-card h2 {
    margin-bottom: 0.5rem;
}

.job-detail-meta {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.job-detail-badge {
    display: inline-block;
    font-size: 0.75rem;
    padding: 0.2rem 0.6rem;
    border-radius: 1rem;
    text-transform: uppercase;
    font-weight: 700;
}

.job-detail-badge.active {
    background: var(--success-color);
    color: white;
}

.job-detail-badge.hidden {
    background: var(--secondary-color);
    color: white;
}

.job-detail-type,
.job-detail-location {
    font-size: 0.9rem;
    color: var(--secondary-color);
}

.job-detail-section {
    margin-bottom: 1.25rem;
}

.job-detail-section h3 {
    margin-bottom: 0.4rem;
    color: var(--text-color);
}

.job-detail-dates {
    font-size: 0.85rem;
    color: var(--secondary-color);
}

.job-detail-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.5rem;
    flex-wrap: wrap;
}

#jd-edit-form-container {
    margin-top: 1.5rem;
}

/* Audit Logs */
.audit-filters {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: #f8fafc;
    border-radius: 0.5rem;
    border: 1px solid #e2e8f0;
}

.audit-filters .form-group {
    margin-bottom: 0;
    flex: 1;
    min-width: 150px;
}

.audit-filters .form-group label {
    font-size: 0.8rem;
    color: var(--secondary-color);
    margin-bottom: 0.25rem;
}

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

.audit-table thead {
    background: #f1f5f9;
}

.audit-table th,
.audit-table td {
    padding: 0.6rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.audit-table th {
    font-weight: 600;
    color: var(--text-color);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.audit-table tbody tr:hover {
    background: #f8fafc;
}

.audit-action-badge {
    display: inline-block;
    background: #dbeafe;
    color: #1e40af;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.15rem 0.5rem;
    border-radius: 0.25rem;
}

.audit-uuid {
    font-family: monospace;
    font-size: 0.8rem;
    color: var(--secondary-color);
    cursor: help;
}

.audit-details {
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.8rem;
    color: var(--secondary-color);
}

.audit-pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid #e2e8f0;
}

.audit-page-info {
    font-size: 0.85rem;
    color: var(--secondary-color);
}

.btn-sm {
    padding: 0.3rem 0.75rem;
    font-size: 0.8rem;
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
    }
    .hero h1 {
        font-size: 2rem;
    }
    #nav-links {
        display: none; /* Mobile menu would go here */
    }
    .mindmap {
        flex-direction: column;
        gap: 1rem;
    }
    .mindmap-left, .mindmap-right {
        align-items: center;
        max-width: 100%;
    }
    .mindmap-connectors {
        display: none;
    }
}