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

:root {
    --color-text-primary: #1a1a1a;
    --color-text-secondary: #4a4a4a;
    --color-text-tertiary: #6b6b6b;
    --color-navy: #1e3a8a;
    --color-navy-dark: #0f172a;
    --color-navy-light: #3b82f6;
    --color-accent: #1e3a8a;
    --color-accent-light: #34495e;
    --color-border: #e0e0e0;
    --color-border-light: #f0f0f0;
    --bg-primary: #ffffff;
    --bg-secondary: #eef2f6;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --spacing-3xl: 6rem;
    --container-padding-mobile: 1.5rem;
    --container-padding-tablet: 3rem;
    --container-padding-desktop: 4rem;
    --container-padding-large: 5rem;
    --max-content-width: 1200px;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    font-weight: 400;
    line-height: 1.6;
    color: var(--color-text-primary);
    background: var(--bg-secondary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: -0.01em;
}

.container {
    max-width: 100%;
    margin: 0 auto;
    background: var(--bg-primary);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header Styles */
.header {
    background: var(--bg-primary);
    border-bottom: 2px solid var(--color-navy);
    padding: var(--spacing-xl) var(--container-padding-mobile);
    margin-bottom: var(--spacing-2xl);
}

.header-content {
    max-width: var(--max-content-width);
    margin: 0 auto;
    width: 100%;
}

.profile-section {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-light);
}

.profile-image-container {
    width: 100px;
    height: 100px;
    border-radius: 2px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    background: var(--bg-secondary);
    flex-shrink: 0;
}

.profile-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.profile-image-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    font-size: 1.5rem;
    font-weight: 500;
    color: var(--color-text-tertiary);
    letter-spacing: 0.05em;
}

.profile-info {
    flex: 1;
}

.name {
    font-size: 2rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.02em;
}

.profile-tagline {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    font-weight: 400;
    margin-top: var(--spacing-xs);
}

.contact-info {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
    font-size: 0.875rem;
}

.contact-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    transition: color 0.2s ease;
    border-bottom: 1px solid transparent;
}

.contact-link:hover {
    color: var(--color-navy);
    border-bottom-color: var(--color-navy);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 0 var(--container-padding-mobile) var(--spacing-2xl);
    max-width: var(--max-content-width);
    margin: 0 auto;
    width: 100%;
}

/* Tab Navigation */
.tabs-container {
    margin-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.tabs {
    display: flex;
    gap: 0;
}

.tab-button {
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--color-text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    cursor: pointer;
    transition: color 0.2s ease, border-color 0.2s ease;
    font-family: inherit;
    margin-bottom: -1px;
}

.tab-button:hover {
    color: var(--color-navy);
}

.tab-button.active {
    color: var(--color-navy);
    border-bottom-color: var(--color-navy);
}

.tab-content {
    margin-top: var(--spacing-xl);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* Section Styles */
.section {
    margin-bottom: var(--spacing-2xl);
}

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

.section-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-navy);
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--color-navy);
}

/* Experience Section */
.experience-item {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border-light);
}

.experience-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
}

.experience-header {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.company-logo-container {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border: 1px solid var(--color-border-light);
    padding: var(--spacing-xs);
}

.company-logo {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.experience-header-text {
    flex: 1;
    min-width: 200px;
}

.job-title {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.01em;
}

.company-link {
    color: var(--color-text-primary);
    text-decoration: none;
    font-weight: 400;
    font-size: 0.95rem;
    transition: color 0.2s ease;
    display: inline-block;
    margin-right: var(--spacing-sm);
}

.company-link:hover {
    color: var(--color-navy);
}

.company {
    color: var(--color-text-primary);
    font-weight: 400;
    font-size: 0.95rem;
    display: inline-block;
    margin-right: var(--spacing-sm);
}

.date {
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
    font-weight: 400;
}

.location {
    color: var(--color-text-tertiary);
    font-size: 0.875rem;
    margin: var(--spacing-xs) 0 var(--spacing-sm);
    display: block;
    font-style: normal;
}

.job-description {
    list-style: none;
    padding: 0;
    margin: var(--spacing-sm) 0 0;
}

.job-description li {
    padding: var(--spacing-xs) 0;
    padding-left: 1.25rem;
    position: relative;
    color: var(--color-text-secondary);
    line-height: 1.7;
    font-size: 0.9375rem;
}

.job-description li::before {
    content: "•";
    position: absolute;
    left: 0.5rem;
    color: var(--color-text-tertiary);
    font-weight: 400;
    font-size: 0.875rem;
}

.expand-link {
    display: inline-block;
    margin-top: var(--spacing-sm);
    color: var(--color-text-tertiary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 400;
    transition: color 0.2s ease;
    border-bottom: 1px solid transparent;
}

.expand-link:hover {
    color: var(--color-navy);
    border-bottom-color: var(--color-navy);
}

.experience-summary-text {
    margin-top: var(--spacing-sm);
}

/* Education Section */
.education-item {
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border-light);
}

.education-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
    margin-bottom: 0;
}

.education-header-with-logo {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.school-logo-container {
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    border: 1px solid var(--color-border-light);
    padding: var(--spacing-xs);
}

.school-logo-container a {
    display: block;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.school-logo {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.education-info {
    flex: 1;
}

.degree {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-xs);
    letter-spacing: -0.01em;
}

.school-link {
    text-decoration: none;
    color: var(--color-text-primary);
    font-weight: 400;
    font-size: 0.95rem;
    display: inline-block;
    margin-right: var(--spacing-sm);
    transition: color 0.2s ease;
}

.school-link:hover {
    color: var(--color-navy);
}

.school {
    color: var(--color-text-primary);
    font-weight: 400;
    font-size: 0.95rem;
    display: inline-block;
    margin-right: var(--spacing-sm);
}

/* Footer */
.footer {
    background: var(--bg-primary);
    border-top: 1px solid var(--color-border);
    text-align: center;
    padding: var(--spacing-lg) var(--container-padding-mobile);
    margin-top: var(--spacing-2xl);
    color: var(--color-text-tertiary);
    font-size: 0.8125rem;
}

.footer p {
    max-width: var(--max-content-width);
    margin: 0 auto;
}

/* Detail Page Styles */
.detail-content .section {
    background: var(--bg-primary);
    border: 1px solid var(--color-border-light);
    border-radius: 8px;
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.detail-content .section-title {
    margin-bottom: var(--spacing-md);
    font-size: 0.875rem;
}

.detail-content .about-text {
    color: var(--color-text-secondary);
    line-height: 1.8;
    font-size: 1rem;
    margin-bottom: var(--spacing-md);
}

.detail-content .experience-item {
    background: transparent;
    border: none;
    padding: 0;
    margin-bottom: 0;
}

.detail-content .skills-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-md);
}

.detail-content .skill-category {
    background: var(--bg-secondary);
    border: 1px solid var(--color-border-light);
    border-radius: 8px;
    padding: var(--spacing-lg);
}

.detail-content .skill-category-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--color-border);
}

.detail-content .skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.detail-content .skill-tag {
    background: var(--color-navy);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: background 0.2s ease;
}

.detail-content .skill-tag:hover {
    background: var(--color-navy-dark);
}

/* Responsive Design - Tablet */
@media (min-width: 768px) {
    .header {
        padding: var(--spacing-xl) var(--container-padding-tablet);
    }

    .main-content {
        padding: 0 var(--container-padding-tablet) var(--spacing-2xl);
    }

    .footer {
        padding: var(--spacing-lg) var(--container-padding-tablet);
    }

    .name {
        font-size: 2.25rem;
    }
}

/* Responsive Design - Desktop */
@media (min-width: 1024px) {
    .header {
        padding: var(--spacing-2xl) var(--container-padding-desktop);
    }

    .main-content {
        padding: 0 var(--container-padding-desktop) var(--spacing-3xl);
    }

    .footer {
        padding: var(--spacing-lg) var(--container-padding-desktop);
    }

    .name {
        font-size: 2.5rem;
    }

    .profile-section {
        gap: var(--spacing-xl);
    }

    .profile-image-container {
        width: 120px;
        height: 120px;
    }

    .section-title {
        font-size: 0.9375rem;
    }

    .job-title,
    .degree {
        font-size: 1.25rem;
    }
}

/* Responsive Design - Large Desktop */
@media (min-width: 1440px) {
    .header {
        padding: var(--spacing-2xl) var(--container-padding-large);
    }

    .main-content {
        padding: 0 var(--container-padding-large) var(--spacing-3xl);
    }

    .footer {
        padding: var(--spacing-lg) var(--container-padding-large);
    }

    .name {
        font-size: 2.75rem;
    }

    .profile-image-container {
        width: 140px;
        height: 140px;
    }

    .job-title,
    .degree {
        font-size: 1.375rem;
    }

    .job-description li {
        font-size: 1rem;
    }
}

/* Responsive Design - Mobile */
@media (max-width: 767px) {
    .header {
        padding: var(--spacing-lg) var(--container-padding-mobile);
        margin-bottom: var(--spacing-lg);
    }

    .main-content {
        padding: 0 var(--container-padding-mobile) var(--spacing-xl);
    }

    .name {
        font-size: 1.75rem;
    }

    .profile-section {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }

    .profile-image-container {
        width: 80px;
        height: 80px;
    }

    .contact-info {
        flex-direction: column;
        gap: var(--spacing-xs);
    }

    .experience-header {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    .education-header-with-logo {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-sm);
    }

    .section-title {
        font-size: 0.8125rem;
    }
}

@media (max-width: 480px) {
    .name {
        font-size: 1.5rem;
    }

    .job-title,
    .degree {
        font-size: 1rem;
    }

    .tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
}

/* Responsive Detail Page Styles */
@media (min-width: 768px) {
    .detail-header {
        padding: var(--spacing-2xl) var(--container-padding-tablet);
    }
    
    .detail-content {
        padding: 0 var(--container-padding-tablet) var(--spacing-3xl);
    }
    
    .detail-header h1 {
        font-size: 3rem;
    }
    
    .detail-header h2 {
        font-size: 1.75rem;
    }
}

@media (min-width: 1024px) {
    .detail-header {
        padding: var(--spacing-3xl) var(--container-padding-desktop);
    }
    
    .detail-content {
        padding: 0 var(--container-padding-desktop) var(--spacing-3xl);
    }
    
    .company-logo-detail img {
        width: 150px;
        height: 150px;
    }
    
    .detail-header h1 {
        font-size: 3.5rem;
    }
    
    .detail-header h2 {
        font-size: 2rem;
    }
}

@media (max-width: 767px) {
    .detail-header {
        padding: var(--spacing-lg) var(--container-padding-mobile);
    }
    
    .detail-header h1 {
        font-size: 2rem;
    }
    
    .detail-header h2 {
        font-size: 1.25rem;
    }
    
    .company-logo-detail img {
        width: 100px;
        height: 100px;
    }
    
    .detail-content .skills-container {
        grid-template-columns: 1fr;
    }
}

/* Print Styles */
@media print {
    body {
        background: white;
    }

    .container {
        max-width: 100%;
        box-shadow: none;
    }

    .header {
        border-bottom: 1px solid var(--color-border);
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }

    .tabs-container {
        display: none;
    }

    .tab-pane {
        display: block !important;
    }

    .experience-item,
    .education-item {
        break-inside: avoid;
        page-break-inside: avoid;
    }

    .footer {
        display: none;
    }
}