/* Reset and base styles - Updated to remove borders */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #0a0a0a;
    color: #ffffff;
    line-height: 1.4;
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Dot paper background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(circle, #777 1px, transparent 1px);
    background-size: 30px 30px;
    opacity: 0.3;
    z-index: -1;
    pointer-events: none;
}

.container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    max-width: 560px;
    margin: 0 auto;
    padding: 0 1.2rem;
}

/* Header */
.header {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    padding: 1.2rem 0 1rem 0;
    padding-top: 2.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}


.header-right {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: #8f8d8d;
    text-decoration: none;
    font-weight: 400;
    font-size: 0.9rem;
    position: relative;
    transition: color 0.2s ease;
}

.nav-link:hover {
    color: #ebebeb;
}

.nav-link.active {
    text-decoration: underline;
    text-underline-offset: 4px;
}

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

.theme-toggle {
    background: none;
    border: none;
    color: #ffffff;
    font-size: 1.1rem;
    cursor: pointer;
    padding: 0.4rem;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.moon-icon {
    display: none;
}

.k-button {
    background: #333;
    color: #ffffff;
    border: none;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.k-button:hover {
    background: #444;
}

/* Main content */
.main-content {
    flex: 1;
    padding: 2rem 0;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

/* About page styles */
.about-content {
    max-width: 100%;
    margin: 0 auto;
    padding-top: 2rem;
}

.intro-text {
    line-height: 1.4;
    max-width: 580px;
    margin: 0 auto;
}

.greeting {
    font-size: 1rem;
    font-weight: 400;
    color: #dbdbdb;
    margin-bottom: 1.2rem;
    letter-spacing: -0.01em;
}

.intro-paragraph {
    font-size: 1rem;
    color: #dbdbdb;
    margin-bottom: 1.2rem;
    line-height: 1.6;
}

.experience-bullets {
    margin-bottom: 1.2rem;
}

.experience-bullet {
    display: flex;
    align-items: flex-start;
    margin-bottom: 0.8rem;
    font-size: 1rem;
    color: #dbdbdb;
    line-height: 1.6;
}

.arrow {
    color: #60a5fa;
    margin-right: 0.8rem;
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 0.1rem;
    flex-shrink: 0;
}

.company-block {
    background: #2d3748;
    color: #ffffff;
    padding: 0.05rem 0.2rem;
    border-radius: 4px;
    font-weight: 500;
    display: inline-block;
}

.company-block-link {
    color: #ffffff;
    text-decoration: underline;
    text-decoration-color: rgba(255, 255, 255, 0.3);
    text-underline-offset: 2px;
    font-weight: 500;
    transition: all 0.2s ease;
    display: inline-block;
}

.company-block-link:hover {
    color: #ffffff;
    text-decoration-color: rgba(255, 255, 255, 0.8);
    transform: translateY(-1px);
}

.experience-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 1.5rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 12px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.experience-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.experience-item:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.experience-item:hover::before {
    opacity: 1;
}

.company-logo {
    margin-right: 1.2rem;
    flex-shrink: 0;
}

.logo-placeholder {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    color: #ffffff;
    transition: all 0.3s ease;
}

.logo-placeholder.databricks {
    background: linear-gradient(135deg, #ff6b35, #f7931e);
}

.logo-placeholder.meta {
    background: linear-gradient(135deg, #1877f2, #42a5f5);
}

.logo-placeholder.bloomberg {
    background: linear-gradient(135deg, #000000, #333333);
}

.logo-placeholder.node {
    background: linear-gradient(135deg, #8b5cf6, #a78bfa);
}

.experience-content {
    flex: 1;
    min-width: 0;
}

.experience-header {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.role {
    color: #ffffff;
    font-weight: 600;
    font-size: 1rem;
}

.company {
    color: #60a5fa;
    font-weight: 500;
    font-size: 1rem;
}

.description {
    color: #cccccc;
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 0;
}

.acquisition-link {
    color: #60a5fa;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

.acquisition-link:hover {
    color: #3b82f6;
    text-decoration: underline;
}

.highlight {
    color: #60a5fa;
    font-weight: 500;
}

.section {
    margin: 2rem 0;
}

.section-title {
    display: flex;
    align-items: center;
    margin-bottom: 1rem;
    font-weight: 600;
    font-size: 1rem;
}

.section-content {
    margin-left: 1.5rem;
}

.item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 0.8rem;
    font-size: 0.95rem;
}

.arrow {
    color: #666;
    margin-right: 0.8rem;
    margin-top: 0.1rem;
    font-size: 0.8rem;
}

.cta-button {
    background: #333;
    color: #ffffff;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    margin: 2rem 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background-color 0.2s ease;
}

.cta-button:hover {
    background: #444;
}

.signature {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-top: 1.5rem;
}

.signature-text {
    font-family: 'Brush Script MT', cursive;
    font-size: 1.8rem;
    color: #888;
    font-weight: 400;
}

.refresh-icon {
    color: #ffffff;
    font-size: 1.1rem;
    cursor: pointer;
    transition: transform 0.2s ease;
}

.refresh-icon:hover {
    transform: rotate(180deg);
}

/* Projects page styles */
.search-container {
    margin-bottom: 2rem;
}

.search-bar {
    display: flex;
    align-items: center;
    background: #1a1a1a;
    border: 1px solid #333;
    border-radius: 8px;
    padding: 0.8rem 1rem;
    max-width: 500px;
    margin: 0 auto;
}

.search-icon {
    margin-right: 0.8rem;
    color: #666;
    font-size: 0.9rem;
}

.search-bar input {
    background: none;
    border: none;
    color: #ffffff;
    font-size: 0.95rem;
    width: 100%;
    outline: none;
}

.search-bar input::placeholder {
    color: #666;
}

/* Vertical project list */
.projects-list {
    max-width: 100%;
    margin: 0 auto;
}

/* New project item styles */
.project-item {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

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

.project-item .project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.8rem;
}

.project-item .project-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #ffffff;
    margin: 0;
    line-height: 1.3;
}

.achievement {
    font-weight: 400;
    color: #8f8d8d;
    font-size: 0.9rem;
}

.external-link {
    color: #8f8d8d;
    text-decoration: none;
    font-size: 1rem;
    margin-left: 0.5rem;
    transition: color 0.2s ease;
}

.external-link:hover {
    color: #ffffff;
}

.project-item .project-description {
    color: #dbdbdb;
    margin-bottom: 1rem;
    line-height: 1.6;
    font-size: 0.95rem;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.tech-tag {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    padding: 0.25rem 0.6rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 500;
}

.project-links {
    margin-top: 0.5rem;
}

.project-link {
    color: #60a5fa;
    text-decoration: underline;
    text-decoration-color: rgba(96, 165, 250, 0.3);
    text-underline-offset: 2px;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.project-link:hover {
    color: #3b82f6;
    text-decoration-color: rgba(59, 130, 246, 0.8);
}

.project-card {
    background: #1a1a1a;
    border: 1px solid #333;
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.project-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.project-title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #ffffff;
}

.project-icons {
    display: flex;
    gap: 0.5rem;
}

.icon {
    font-size: 1.1rem;
    cursor: pointer;
    transition: opacity 0.2s ease;
}

.icon:hover {
    opacity: 0.7;
}

.project-description {
    color: #ccc;
    margin-bottom: 1rem;
    line-height: 1.5;
    font-size: 0.95rem;
}

.project-visual {
    margin-bottom: 1rem;
}

.visual-placeholder {
    background: #2a2a2a;
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    font-size: 1.5rem;
    color: #666;
}

.project-actions {
    display: flex;
    gap: 0.8rem;
}

.action-btn {
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.action-btn.primary {
    background: #3b82f6;
    color: #ffffff;
}

.action-btn.primary:hover {
    background: #2563eb;
}

.action-btn.secondary {
    background: #374151;
    color: #ffffff;
}

.action-btn.secondary:hover {
    background: #4b5563;
}

/* Writing page styles */
.writing-content {
    text-align: center;
    padding: 3rem 2rem;
    max-width: 100%;
    margin: 0 auto;
}

.writing-content h2 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: #ffffff;
}

.writing-content p {
    color: #ccc;
    font-size: 1rem;
    line-height: 1.6;
}

/* Footer */
.footer {
    padding: 2rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    margin-top: auto;
}

.footer-left {
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    gap: 0.8rem;
}

.social-link {
    color: #8f8d8d;
    text-decoration: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    transition: color 0.2s ease;
}

.social-link:hover {
    color: #ebebeb;
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.footer-right {
    position: absolute;
    right: 0;
    top: 2rem;
}

.copyright {
    color: #8f8d8d;
    font-size: 0.85rem;
}

/* Light mode styles */
body.light-mode {
    background: #f8f9fa;
    color: #1a1a1a;
}

body.light-mode::before {
    background-image: radial-gradient(circle, #e0e0e0 1px, transparent 1px);
    opacity: 0.5;
}



body.light-mode .header {
    border-bottom-color: rgba(0, 0, 0, 0.1);
}

body.light-mode .nav-link {
    color: #8f8d8d;
}

body.light-mode .nav-link:hover {
    color: #1a1a1a;
}

body.light-mode .theme-toggle .sun-icon {
    display: none;
}

body.light-mode .theme-toggle .moon-icon {
    display: inline;
}


body.light-mode .experience-item {
    background: rgba(0, 0, 0, 0.02);
    border-color: rgba(0, 0, 0, 0.08);
}

body.light-mode .experience-item:hover {
    background: rgba(0, 0, 0, 0.04);
    border-color: rgba(0, 0, 0, 0.12);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

body.light-mode .role {
    color: #1a1a1a;
}

body.light-mode .company {
    color: #2563eb;
}

body.light-mode .description {
    color: #4b5563;
}

body.light-mode .acquisition-link {
    color: #2563eb;
}

body.light-mode .acquisition-link:hover {
    color: #1d4ed8;
}

body.light-mode .greeting {
    color: #4b5563;
}

body.light-mode .intro-paragraph {
    color: #4b5563;
}

body.light-mode .experience-bullets {
    color: #4b5563;
}

body.light-mode .experience-bullet {
    color: #4b5563;
}

body.light-mode .arrow {
    color: #2563eb;
}

body.light-mode .company-block {
    background: #2d3748;
    color: #ffffff;
}

body.light-mode .company-block-link {
    color: #1a1a1a;
    text-decoration-color: rgba(26, 26, 26, 0.3);
}

body.light-mode .company-block-link:hover {
    color: #1a1a1a;
    text-decoration-color: rgba(26, 26, 26, 0.8);
}

body.light-mode .highlight {
    color: #2563eb;
}


body.light-mode .search-bar {
    background: #ffffff;
    border-color: #d1d5db;
}

body.light-mode .search-bar input {
    color: #1a1a1a;
}

body.light-mode .search-bar input::placeholder {
    color: #9ca3af;
}

body.light-mode .project-card {
    background: #ffffff;
    border-color: #d1d5db;
}

body.light-mode .project-title {
    color: #1a1a1a;
}

body.light-mode .project-description {
    color: #4b5563;
}

body.light-mode .visual-placeholder {
    background: #f3f4f6;
    color: #9ca3af;
}


body.light-mode .social-link {
    color: #8f8d8d;
}

body.light-mode .social-link:hover {
    color: #1a1a1a;
}

body.light-mode .footer {
    border-top-color: rgba(0, 0, 0, 0.1);
}

body.light-mode .copyright {
    color: #8f8d8d;
}

body.light-mode .writing-content h2 {
    color: #1a1a1a;
}

body.light-mode .writing-content p {
    color: #4b5563;
}

/* Light mode project item styles */
body.light-mode .project-item {
    border-bottom-color: rgba(0, 0, 0, 0.1);
}

body.light-mode .project-item .project-title {
    color: #1a1a1a;
}

body.light-mode .achievement {
    color: #8f8d8d;
}

body.light-mode .external-link {
    color: #8f8d8d;
}

body.light-mode .external-link:hover {
    color: #1a1a1a;
}

body.light-mode .project-item .project-description {
    color: #4b5563;
}

body.light-mode .tech-tag {
    background: rgba(0, 0, 0, 0.1);
    color: #1a1a1a;
}

body.light-mode .project-link {
    color: #2563eb;
    text-decoration-color: rgba(37, 99, 235, 0.3);
}

body.light-mode .project-link:hover {
    color: #1d4ed8;
    text-decoration-color: rgba(29, 78, 216, 0.8);
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 0 1.8rem;
        max-width: 100%;
    }
    
    .header {
        padding: 1.5rem 0 1rem 0;
        padding-top: 2rem;
        flex-direction: row;
        justify-content: flex-end;
    }

    .header-right {
        gap: 1rem;
        width: auto;
        justify-content: flex-end;
    }

    .nav {
        gap: 1.5rem;
    }

    .nav-link {
        font-size: 0.9rem;
    }

    .main-content {
        padding: 1.5rem 0;
    }

    .about-content {
        padding-top: 2rem;
        padding-left: 1rem;
        padding-right: 1rem;
    }

    .greeting {
        font-size: 1.1rem;
        margin-bottom: 1rem;
    }

    .intro-paragraph {
        font-size: 0.95rem;
        margin-bottom: 1rem;
    }

    .experience-bullet {
        font-size: 0.95rem;
        margin-bottom: 0.7rem;
    }

    .arrow {
        margin-right: 0.6rem;
        font-size: 1rem;
    }

    .company-block-link {
        font-size: 0.95rem;
    }

    /* Project items mobile styles */
    .project-item {
        margin-bottom: 2.5rem;
        padding-bottom: 1.5rem;
    }

    .project-item .project-title {
        font-size: 1rem;
        line-height: 1.4;
    }

    .achievement {
        font-size: 0.85rem;
        display: block;
        margin-top: 0.2rem;
    }

    .project-item .project-description {
        font-size: 0.9rem;
        margin-bottom: 0.8rem;
    }

    .project-tech {
        gap: 0.4rem;
        margin-bottom: 0.8rem;
    }

    .tech-tag {
        font-size: 0.75rem;
        padding: 0.2rem 0.5rem;
    }

    .external-link {
        font-size: 0.9rem;
        margin-left: 0.3rem;
    }

    .footer {
        padding: 1.5rem 0;
    }

    .footer-right {
        position: static;
        margin-top: 1rem;
    }

    .social-links {
        gap: 0.6rem;
    }

    .social-link {
        width: 28px;
        height: 28px;
    }

    .social-link svg {
        width: 18px;
        height: 18px;
    }
}

/* Extra small devices */
@media (max-width: 480px) {
    .container {
        padding: 0 1.5rem;
    }
    
    .header {
        padding: 1.2rem 0 0.8rem 0;
        padding-top: 1.5rem;
    }

    .header-right {
        flex-direction: row;
        gap: 0.8rem;
    }

    .nav {
        gap: 1.2rem;
    }

    .nav-link {
        font-size: 0.85rem;
    }

    .main-content {
        padding: 1.2rem 0;
    }

    .about-content {
        padding-top: 1.5rem;
        padding-left: 1.2rem;
        padding-right: 1.2rem;
    }

    .greeting {
        font-size: 1rem;
    }

    .intro-paragraph {
        font-size: 0.9rem;
    }

    .experience-bullet {
        font-size: 0.9rem;
    }

    .project-item .project-title {
        font-size: 0.95rem;
    }

    .project-item .project-description {
        font-size: 0.85rem;
    }

    .tech-tag {
        font-size: 0.7rem;
        padding: 0.15rem 0.4rem;
    }

    .footer {
        padding: 1.2rem 0;
    }

    .copyright {
        font-size: 0.8rem;
    }
}

/* Touch-friendly improvements */
@media (max-width: 768px) {
    .external-link {
        padding: 0.5rem;
        margin: -0.5rem;
        border-radius: 4px;
        transition: background-color 0.2s ease;
    }
    
    .external-link:hover {
        background-color: rgba(255, 255, 255, 0.1);
    }
    
    .theme-toggle {
        padding: 0.6rem;
        margin: -0.2rem;
    }
    
    .nav-link {
        padding: 0.5rem 0;
        margin: -0.5rem 0;
    }
}

/* Landscape mobile orientation */
@media (max-width: 768px) and (orientation: landscape) {
    .header {
        padding: 1rem 0 0.8rem 0;
        padding-top: 1.5rem;
    }
    
    .main-content {
        padding: 1rem 0;
    }
    
    .project-item {
        margin-bottom: 2rem;
        padding-bottom: 1.2rem;
    }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .external-link {
        font-weight: 500;
    }
    
    .tech-tag {
        font-weight: 500;
    }
}