:root {
    /* Dark theme (default) */
    --bg-color: #121214;
    --text-color: rgba(255, 255, 255, 0.9);
    --secondary-color: #1a1a1d;
    --inactive-color: #444446;
    --highlight-color: #666668;
    --border-color: rgba(255, 255, 255, 0.08);
}

:root[data-theme="light"] {
    --bg-color: #ffffff;
    --text-color: rgba(0, 0, 0, 0.9);
    --secondary-color: #f5f5f7;
    --inactive-color: #999999;
    --highlight-color: #666666;
    --border-color: rgba(0, 0, 0, 0.08);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    display: flex;
    flex-direction: column;
}

body.menu-open {
    overflow: hidden;
    position: fixed;
    width: 100%;
    height: 100%;
}

.container {
    display: grid;
    grid-template-columns: 280px 1fr;
    min-height: 100vh;
    flex: 1;
}

.sidebar {
    background-color: var(--bg-color);
    padding: 2rem;
    position: sticky;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    border-right: 1px solid var(--border-color);
}

/* Scrollbar Styles */
.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: var(--bg-color);
}

.sidebar::-webkit-scrollbar-thumb {
    background: var(--inactive-color);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
    background: var(--highlight-color);
}

.main-content {
    background-color: var(--bg-color);
    padding: 3rem 2rem;
    overflow-y: auto;
    scroll-behavior: smooth;
}

.title {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.05em;
    margin-bottom: 0.5rem;
    color: var(--text-color);
}

/* Remove gradient from titles */
.title:not(.hero-section .title) {
    color: var(--text-color);
    -webkit-text-fill-color: initial;
    background: none;
}

/* Cloud effect styles */
.hero-section h1.title {
    position: relative;
    overflow: visible;
    display: flex;
    flex-wrap: wrap;
    line-height: 1.2;
    white-space: nowrap;
    background: none;
    -webkit-text-fill-color: initial;
}

.imagination-text {
    position: relative;
    color: var(--text-color);
    transition: color 1.5s ease;
    display: inline-block;
}

.imagination-text + span {
    color: var(--text-color);
    display: inline-block;
    margin-left: 0.5rem;
}

.subtitle {
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    color: var(--text-color);
    opacity: 0.7;
}

.bio {
    font-size: 1rem;
    color: var(--text-color);
    opacity: 0.8;
    margin-bottom: 2rem;
}

.controls-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.mute-button {
    background: none;
    border: none;
    color: var(--text-color);
    padding: 0;
    cursor: pointer;
    transition: opacity 0.2s ease;
    opacity: 0.8;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mute-button:hover {
    opacity: 1;
    background: none;
}

.mute-button svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

.mute-button .icon-muted {
    display: none;
}

.mute-button.muted .icon-muted {
    display: block;
}

.mute-button.muted .icon-unmuted {
    display: none;
}

.theme-toggle {
    background: none;
    border: none;
    color: var(--text-color);
    padding: 0;
    cursor: pointer;
    transition: opacity 0.2s ease;
    opacity: 0.8;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    opacity: 1;
    background: none;
}

.theme-toggle svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

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

.theme-toggle .icon-dark {
    display: block;
}

:root[data-theme="light"] .theme-toggle .icon-light {
    display: block;
}

:root[data-theme="light"] .theme-toggle .icon-dark {
    display: none;
}

.github-link {
    color: var(--text-color);
    opacity: 0.8;
    transition: opacity 0.2s ease;
}

.github-link:hover {
    opacity: 1;
}

.github-link svg {
    width: 24px;
    height: 24px;
    fill: currentColor;
}

.projects-nav {
    margin-top: 2rem;
}

.projects-title {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
    font-weight: 600;
    opacity: 0.7;
}

.project-link {
    display: block;
    padding: 0.25rem 0;
    font-size: 0.95rem;
    color: var(--inactive-color);
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    text-decoration: none;
    font-weight: 400;
}

.project-link:hover {
    color: var(--text-color);
    transform: translateX(5px);
}

.project-link.active {
    color: var(--text-color);
    font-weight: 500;
}

.project-link.active::before {
    content: '';
    position: absolute;
    left: -20px;
    top: 50%;
    transform: translateY(-50%);
    width: 10px;
    height: 1px;
    background-color: var(--text-color);
}

.project-content {
    display: none;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
    scroll-margin-top: 2rem;
}

.project-content.active {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.project-header {
    margin-bottom: 2rem;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
}

.project-detail-title {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-color);
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.project-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.project-date {
    font-size: 0.9rem;
    color: var(--text-color);
    opacity: 0.6;
    font-family: 'Inter', monospace;
    letter-spacing: 0.05em;
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--secondary-color);
    transition: all 0.2s ease;
    cursor: pointer;
}

.project-date:hover {
    opacity: 1;
    border-color: var(--text-color);
}

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

.project-tag {
    font-size: 0.8rem;
    color: var(--text-color);
    opacity: 0.6;
    font-family: 'Inter', monospace;
    letter-spacing: 0.05em;
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--highlight-color);
    transition: all 0.2s ease;
    cursor: pointer;
}

.project-tag:hover {
    opacity: 1;
    border-color: var(--text-color);
    transform: translateY(-1px);
}

.project-detail-description {
    font-size: 1.1rem;
    line-height: 1.8;
    max-width: 800px;
    margin-bottom: 2rem;
}

.project-detail-image {
    width: 100%;
    max-width: 1000px;
    border-radius: 4px;
    margin-bottom: 2rem;
}

.welcome-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 60vh;
    text-align: center;
}

.welcome-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.6;
}

.welcome-message {
    font-size: 1.2rem;
    max-width: 500px;
    opacity: 0.4;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-in {
    animation: fadeIn 0.5s ease forwards;
}

.mobile-nav-controls {
    display: none;
    justify-content: space-between;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-nav-btn {
    background-color: var(--secondary-color);
    color: var(--text-color);
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.mobile-nav-btn:hover {
    background-color: var(--highlight-color);
}

.mobile-nav-btn:active {
    transform: scale(0.95);
}

.mobile-project-title {
    display: none;
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-color);
    opacity: 0.8;
}

.mobile-menu-toggle {
    display: none;
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 100;
    background-color: var(--secondary-color);
    color: var(--text-color);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.mobile-menu-toggle .bar {
    display: block;
    width: 20px;
    height: 2px;
    margin: 4px auto;
    background-color: var(--text-color);
    transition: all 0.3s ease;
}

/* Footer Styles */
.site-footer {
    width: 100%;
    background-color: var(--bg-color);
    border-top: 1px solid var(--border-color);
    padding: 1.5rem 2rem;
    margin-top: auto;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

.footer-text {
    color: var(--text-color);
    opacity: 0.7;
    font-size: 0.9rem;
    transition: opacity 0.2s ease;
    white-space: nowrap;
}

.footer-text:hover {
    opacity: 1;
}

.footer-mute {
    opacity: 0.7;
    padding: 0.5rem;
    margin-right: -0.5rem;
}

.footer-mute:hover {
    opacity: 1;
}

.footer-mute svg {
    width: 20px;
    height: 20px;
}

/* Responsive */
@media (max-width: 768px) {
    .site-header {
        position: fixed;
        top: 0;
        left: 0;
        padding: 1rem;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    }

    .footer-content {
        padding: 0;
        gap: 0.5rem;
    }

    .site-footer {
        padding: 1rem;
    }

    .container {
        padding-top: 5rem;
        grid-template-columns: 1fr;
    }
    
    .site-header .title {
        font-size: 1.75rem;
    }
    
    .hero-section h1 {
        font-size: 1.75rem;
    }
    
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        width: 100%;
        height: 100%;
        z-index: 90;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        background-color: var(--bg-color);
        overflow: hidden;
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-inner {
        height: 100%;
        overflow-y: auto;
        padding: 5rem 1rem 1rem;
        -webkit-overflow-scrolling: touch;
    }

    .sidebar .subtitle {
        font-size: 0.9rem;
        margin-bottom: 0.5rem;
    }

    .sidebar .bio {
        font-size: 0.8rem;
        margin-bottom: 1rem;
        opacity: 0.8;
        display: block;
    }

    .controls-row {
        margin-bottom: 1rem;
    }

    .projects-nav {
        margin-top: auto;
    }
    
    .mobile-menu-toggle {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        position: fixed;
        top: 1rem;
        right: 1rem;
        z-index: 100;
        width: 40px;
        height: 40px;
    }

    .mobile-menu-toggle .bar {
        width: 20px;
        height: 2px;
        background-color: var(--text-color);
        margin: 2px 0;
        transition: all 0.3s ease;
    }

    .mobile-menu-toggle.open .bar:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .mobile-menu-toggle.open .bar:nth-child(2) {
        opacity: 0;
    }

    .mobile-menu-toggle.open .bar:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .project-header {
        gap: 0.5rem;
    }

    .project-meta {
        gap: 0.75rem;
    }

    .project-date, .project-tag {
        font-size: 0.8rem;
    }
    
    .title {
        font-size: 1.75rem;
    }
    
    .subtitle {
        font-size: 1rem;
        margin-bottom: 1rem;
    }
    
    .bio {
        font-size: 0.9rem;
        margin-bottom: 1.5rem;
    }
    
    .projects-title {
        margin-bottom: 1rem;
        font-size: 1rem;
    }
    
    .project-link {
        padding: 0.5rem 0;
        font-size: 0.9rem;
    }
    
    .mobile-nav-controls {
        display: flex;
    }
    
    .mobile-project-title {
        display: block;
    }

    .footer-text {
        font-size: 0.8rem;
    }

    .footer-mute {
        padding: 0.35rem;
        margin-right: -0.35rem;
    }

    .footer-mute svg {
        width: 18px;
        height: 18px;
    }
}

/* Small phones */
@media (max-width: 480px) {
    .sidebar {
        padding: 1rem;
    }
    
    .main-content {
        padding: 1rem;
    }
    
    .project-detail-title {
        font-size: 1.75rem;
    }
    
    .project-detail-description {
        font-size: 0.9rem;
    }

    .footer-text {
        font-size: 0.75rem;
    }

    .footer-mute svg {
        width: 16px;
        height: 16px;
    }
}

.site-header {
    width: 100%;
    background-color: var(--bg-color);
    z-index: 100;
    padding: 0.75rem 2rem;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    transition: transform 0.3s ease;
}

.header-hidden {
    transform: translateY(-100%);
}

.site-header .hero-section {
    flex: 0 1 auto;
}

.site-header .title {
    margin: 0;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-color);
    letter-spacing: -0.02em;
}

/* Remove these now unnecessary classes */
.mobile-title-container,
.mobile-only,
.desktop-only {
    display: none !important;
}

.filtered-projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.project-card {
    background-color: var(--secondary-color);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    cursor: pointer;
    border: 1px solid var(--border-color);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.project-card-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 1px solid var(--border-color);
}

.project-card-content {
    padding: 1.5rem;
}

.project-card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-color);
}

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

.project-card-date {
    font-size: 0.8rem;
    color: var(--text-color);
    opacity: 0.6;
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.project-card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.project-card-tag {
    font-size: 0.8rem;
    color: var(--text-color);
    opacity: 0.6;
    padding: 0.25rem 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--highlight-color);
}

.project-card-description {
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--text-color);
    opacity: 0.8;
    margin-top: 1rem;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .filtered-projects-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1.5rem;
        padding: 1.5rem;
    }
    
    .project-card-image {
        height: 150px;
    }
    
    .project-card-content {
        padding: 1rem;
    }
    
    .project-card-title {
        font-size: 1.1rem;
    }
}

@media (max-width: 480px) {
    .filtered-projects-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
        padding: 1rem;
    }
}