/* ===== CSS Reset & Base Styles ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --secondary-color: #64748b;
    --danger-color: #dc2626;
    --danger-hover: #b91c1c;
    --success-color: #16a34a;
    --background: #f8fafc;
    --card-background: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

/* ===== Navigation ===== */
.navbar {
    background-color: var(--card-background);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--border-color);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
}

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

.nav-menu a:hover {
    color: var(--primary-color);
}

.language-selector select {
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--card-background);
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: border-color 0.2s;
}

.language-selector select:hover {
    border-color: var(--primary-color);
}

.language-selector select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
}

.consultant-selector select {
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: var(--card-background);
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: border-color 0.2s;
}

.consultant-selector select:hover {
    border-color: var(--primary-color);
}

.consultant-selector select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.1);
}

/* ===== Container & Layout ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

/* ===== Page Header ===== */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border-color);
}

.page-header h2 {
    font-size: 2rem;
    color: var(--text-primary);
}

/* ===== Hero Section ===== */
.hero {
    text-align: center;
    padding: 3rem 0;
    margin-bottom: 2rem;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
}

/* ===== Cards ===== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.card {
    background: var(--card-background);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.card h3 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

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

/* ===== Buttons ===== */
.btn {
    display: inline-block;
    padding: 0.625rem 1.25rem;
    border: none;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
}

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

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

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

.btn-secondary:hover {
    background-color: #475569;
}

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

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

.btn-small {
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
}

.btn-link {
    background-color: transparent;
    color: var(--primary-color);
    padding: 0.5rem;
}

.btn-link:hover {
    text-decoration: underline;
}

/* ===== Alerts ===== */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
    border-left: 4px solid var(--success-color);
}

.alert-error {
    background-color: #fee2e2;
    color: #991b1b;
    border-left: 4px solid var(--danger-color);
}

/* ===== Forms ===== */
.form {
    background: var(--card-background);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: var(--shadow);
}

.form-compact {
    margin-top: 2rem;
}

.form-section {
    margin-bottom: 2rem;
}

.form-section h3 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    font-size: 1.25rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border-color);
}

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

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

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

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.875rem;
    font-family: inherit;
    transition: border-color 0.2s, box-shadow 0.2s;
}

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

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

.form-group small {
    display: block;
    margin-top: 0.25rem;
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: auto;
    cursor: pointer;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border-color);
}

.radio-group {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.radio-option {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: var(--text-secondary);
}

/* ===== Info Display ===== */
.info-card {
    background: var(--card-background);
    border-radius: 8px;
    padding: 2rem;
    box-shadow: var(--shadow);
}

.info-section {
    margin-bottom: 2rem;
}

.info-section:last-child {
    margin-bottom: 0;
}

.info-section h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
    font-size: 1.25rem;
}

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

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

.info-item label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 0.25rem;
}

.info-item span {
    color: var(--text-primary);
}

.text-muted {
    color: var(--text-secondary);
}

.info-item a {
    color: var(--primary-color);
    word-break: break-all;
}

/* ===== List Items ===== */
.list-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.list-item {
    background: var(--card-background);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    border-left: 4px solid var(--primary-color);
}

.list-item-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.list-item-header h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.list-item-header .company {
    color: var(--text-secondary);
    font-weight: 500;
}

.list-item-header .date-range {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.list-item-header .role,
.list-item-header .gpa,
.list-item-header .credential-id {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.list-item-header .technologies {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

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

.list-item-content {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.list-item-content h4 {
    color: var(--text-primary);
    font-size: 0.95rem;
    margin-bottom: 0.5rem;
}

.list-item-content p {
    color: var(--text-secondary);
    line-height: 1.6;
    white-space: pre-wrap;
}

/* ===== Skills Specific ===== */
.skills-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.skill-category {
    background: var(--card-background);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
}

.skill-category h3 {
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.skill-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.skill-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    transition: background-color 0.2s;
}

.skill-item:hover {
    background-color: var(--background);
}

.skill-info h4 {
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.skill-details {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    background-color: var(--primary-color);
    color: white;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
}

.text-muted {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

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

/* ===== Empty State ===== */
.empty-state {
    text-align: center;
    padding: 3rem;
    background: var(--card-background);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.empty-state p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1.125rem;
}

/* ===== Footer ===== */
footer {
    margin-top: 4rem;
    padding: 2rem 0;
    background-color: var(--card-background);
    border-top: 1px solid var(--border-color);
}

footer p {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 1rem;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .page-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }

    .list-item-header {
        flex-direction: column;
        gap: 1rem;
    }

    .list-item-actions {
        width: 100%;
    }

    .skill-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.75rem;
    }

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