:root {
    --bg-primary: #fafafa;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f5f5f5;
    --text-primary: #0a0a0a;
    --text-secondary: #525252;
    --text-tertiary: #737373;
    --accent: #2563eb;
    --accent-hover: #1d4ed8;
    --border: #e5e5e5;
    --success: #16a34a;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

[data-theme="dark"] {
    --bg-primary: #0a0a0a;
    --bg-secondary: #141414;
    --bg-tertiary: #1a1a1a;
    --text-primary: #fafafa;
    --text-secondary: #a3a3a3;
    --text-tertiary: #737373;
    --accent: #3b82f6;
    --accent-hover: #60a5fa;
    --border: #262626;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    transition: background-color 0.3s, color 0.3s;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}


.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background-color: rgba(250, 250, 250, 0.8);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    backdrop-filter: blur(10px);
}

[data-theme="dark"] .navbar {
    background-color: rgba(10, 10, 10, 0.8);
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 2rem;
}

.logo svg {
    color: var(--text-primary);
    transition: color 0.2s;
}

.logo:hover svg {
    color: var(--accent);
}

.nav-menu {
    display: flex;
    gap: 2.5rem;
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    font-weight: 500;
    transition: color 0.2s;
    text-decoration: none;
    position: relative;
}

.nav-link:hover {
    color: var(--text-primary);
}

.nav-link.active {
    color: var(--text-primary);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--text-secondary);
    transition: color 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    color: var(--text-primary);
}

.theme-icon-dark {
    display: none;
}

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

[data-theme="dark"] .theme-icon-dark {
    display: block;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
}

.hamburger span {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
}


.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
}

.hero .container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-label {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--success);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 2rem;
}

.hero-label svg {
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.05;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    margin-bottom: 2.5rem;
    padding: 1.5rem 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    margin-top: 0.25rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.75rem;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.9375rem;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    text-decoration: none;
}

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

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    border-color: var(--text-primary);
}

.btn-small {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
}


.code-window {
    background-color: #18181b;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.window-header {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    background-color: rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.window-dots {
    display: flex;
    gap: 0.5rem;
}

.window-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.window-dots span:nth-child(1) { background-color: #ff5f56; }
.window-dots span:nth-child(2) { background-color: #ffbd2e; }
.window-dots span:nth-child(3) { background-color: #27c93f; }

.window-title {
    margin-left: 1rem;
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.6);
    font-family: var(--font-mono);
}

.window-content {
    padding: 1.5rem;
    overflow-x: auto;
}

.window-content pre {
    margin: 0;
    min-width: fit-content;
}

.window-content code {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.7;
    color: #e4e4e7;
    white-space: pre;
}

.code-keyword { color: #c678dd; }
.code-class { color: #e5c07b; }
.code-function { color: #61afef; }
.code-param { color: #e06c75; }
.code-string { color: #98c379; }
.code-number { color: #d19a66; }


section {
    padding: 6rem 0;
}

.section-header {
    margin-bottom: 3rem;
}

.section-label {
    display: inline-block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    line-height: 1.2;
    margin-bottom: 0.5rem;
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}


.about {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 4rem;
}

.about-intro {
    font-size: 1.25rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
}

.about-main p {
    margin-bottom: 1.25rem;
    color: var(--text-secondary);
}

.about-principles h3 {
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

.principles-list {
    list-style: none;
}

.principles-list li {
    display: flex;
    align-items: start;
    gap: 0.75rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.principles-list svg {
    flex-shrink: 0;
    margin-top: 0.125rem;
    color: var(--accent);
}


.tech-stack {
    padding: 4rem 0 0 0;
    background-color: var(--bg-secondary);
}

.tech-stack .container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

.tech-stack h3 {
    font-size: 1.5rem;
    margin-bottom: 2rem;
    text-align: center;
}

.stack-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.stack-item {
    display: flex;
    gap: 1rem;
    padding: 1.5rem;
    background-color: var(--bg-tertiary);
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: all 0.2s;
}

.stack-item:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.stack-icon {
    flex-shrink: 0;
    color: var(--accent);
}

.stack-info h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.stack-info p {
    font-size: 0.875rem;
    color: var(--text-tertiary);
    line-height: 1.5;
}


.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 40px;
    margin-top: 3rem;
}

.project-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 18px;
    overflow: hidden;
    transition: all 0.35s ease;
    cursor: pointer;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.06);
}

.project-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] .project-card {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .project-card:hover {
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4);
}

.project-image {
    width: 100%;
    height: 240px;
    background: linear-gradient(135deg, var(--accent), var(--accent-hover));
    position: relative;
    overflow: hidden;
    border-bottom: 1px solid var(--border);
}

.project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease;
}

.project-card:hover .project-image img {
    transform: scale(1.05);
}

.project-image.no-image {
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-image.no-image::after {
    content: '';
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
}

.project-overlay {
    position: absolute;
    top: 1rem;
    right: 1rem;
}

.project-content {
    padding: 1.6rem 1.8rem 2rem;
}

.project-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
    color: var(--text-primary);
}

.project-meta {
    font-size: 0.8125rem;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 0.75rem;
    letter-spacing: 0.02em;
}

.project-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.9375rem;
    line-height: 1.6;
}

.project-highlights {
    list-style: none;
    padding: 0;
    margin: 0 0 1.25rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.project-highlights li {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
    padding-left: 18px;
    position: relative;
    margin-bottom: 8px;
}

.project-highlights li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    background: #2563eb;
    border-radius: 50%;
}

[data-theme="dark"] .project-highlights li::before {
    background: #60a5fa;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.25rem;
}

.tech-tag {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    padding: 0.375rem 0.75rem;
    border-radius: 6px;
    font-size: 0.8125rem;
    border: 1px solid var(--border);
    font-weight: 500;
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9375rem;
    transition: gap 0.2s ease;
}

.project-link:hover {
    gap: 0.75rem;
}

.project-link svg {
    transition: transform 0.2s ease;
}

.project-link:hover svg {
    transform: translateX(2px);
}

.project-status {
    padding: 6px 12px;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
    backdrop-filter: blur(10px);
}

.status-completed {
    background: rgba(34, 197, 94, 0.12);
    color: #16a34a;
}

[data-theme="dark"] .status-completed {
    background: rgba(34, 197, 94, 0.15);
    color: #4ade80;
}

.status-progress {
    background: rgba(59, 130, 246, 0.12);
    color: #2563eb;
}

[data-theme="dark"] .status-progress {
    background: rgba(59, 130, 246, 0.15);
    color: #60a5fa;
}


.experience {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.timeline {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    padding-left: 2rem;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background-color: var(--border);
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -2.375rem;
    top: 0.25rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--accent);
    border: 2px solid var(--bg-secondary);
}

.timeline-date {
    color: var(--accent);
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.timeline-content h3 {
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
}

.timeline-content ul {
    list-style: disc;
    padding-left: 1.5rem;
    color: var(--text-secondary);
}

.timeline-content li {
    margin-bottom: 0.25rem;
}


.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.blog-card {
    background-color: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    transition: border-color 0.2s;
}

.blog-card:hover {
    border-color: var(--accent);
}

.blog-date {
    color: var(--accent);
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.75rem;
}

.blog-card h3 {
    margin-bottom: 0.75rem;
    font-size: 1.125rem;
}

.blog-card p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.9375rem;
}

.blog-link {
    color: var(--accent);
    font-weight: 500;
    font-size: 0.9375rem;
}

.blog-link:hover {
    color: var(--accent-hover);
}


.contact {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-intro {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background-color: var(--bg-tertiary);
    border-radius: 6px;
    border: 1px solid var(--border);
    transition: border-color 0.2s;
}

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

.contact-link svg {
    flex-shrink: 0;
    color: var(--text-tertiary);
}

.contact-availability {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    background-color: var(--bg-tertiary);
    border-radius: 6px;
    border: 1px solid var(--border);
}

.availability-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--success);
    animation: pulse 2s ease-in-out infinite;
}

.contact-availability span {
    font-size: 0.9375rem;
    color: var(--text-secondary);
}


.footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 2rem 0;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-left p {
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.875rem;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--text-primary);
}


@media (max-width: 968px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-visual {
        order: -1;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .window-content {
        text-align: left;
    }
    
    .window-content code {
        text-align: left;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .stack-grid {
        grid-template-columns: 1fr;
    }
    
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--bg-secondary);
        width: 100%;
        padding: 2rem;
        transition: left 0.3s;
        border-bottom: 1px solid var(--border);
        gap: 1.5rem;
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .nav-actions {
        gap: 0.5rem;
    }
    
    .hamburger {
        display: flex;
    }
    
    .footer-content {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}

@media (max-width: 640px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        gap: 2rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .container {
        padding: 0 1.5rem;
    }
    
    .code-window {
        border-radius: 6px;
        max-width: 100%;
    }
    
    .window-header {
        padding: 0.5rem 0.75rem;
    }
    
    .window-dots span {
        width: 8px;
        height: 8px;
    }
    
    .window-title {
        font-size: 0.7rem;
        margin-left: 0.5rem;
    }
    
    .window-content {
        padding: 0.75rem;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .window-content code {
        font-size: 0.7rem;
        line-height: 1.5;
    }
    
    .hero-visual {
        max-width: 100%;
        overflow: hidden;
    }
}


@media (max-width: 400px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .window-content {
        padding: 0.5rem;
    }
    
    .window-content code {
        font-size: 0.65rem;
        line-height: 1.4;
    }
    
    .code-window {
        border-radius: 4px;
    }
}


.project-hero {
    padding: 8rem 0 4rem;
    background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-tertiary) 100%);
    border-bottom: 1px solid var(--border);
}

.project-hero-content {
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.project-hero h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.project-hero .subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.6;
}

.project-badges {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 2rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.badge svg {
    width: 16px;
    height: 16px;
    color: var(--accent);
}

.badge.badge-primary {
    background-color: rgba(37, 99, 235, 0.1);
    border-color: var(--accent);
    color: var(--accent);
}

.badge.badge-success {
    background-color: rgba(22, 163, 74, 0.1);
    border-color: var(--success);
    color: var(--success);
}

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}


.project-section {
    padding: 4rem 0;
}

.project-section.bg-light {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.project-section h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.01em;
}

.section-intro {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 800px;
    line-height: 1.7;
}


.problem-solution-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.problem-box,
.solution-box {
    padding: 2rem;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.problem-box {
    background-color: rgba(239, 68, 68, 0.05);
    border-color: rgba(239, 68, 68, 0.2);
}

.solution-box {
    background-color: rgba(22, 163, 74, 0.05);
    border-color: rgba(22, 163, 74, 0.2);
}

.problem-box h3,
.solution-box h3 {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
}

.problem-box h3 svg {
    color: #ef4444;
}

.solution-box h3 svg {
    color: var(--success);
}

.problem-box ul,
.solution-box ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.problem-box li,
.solution-box li {
    display: flex;
    align-items: start;
    gap: 0.75rem;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.problem-box li svg,
.solution-box li svg {
    flex-shrink: 0;
    margin-top: 0.25rem;
    width: 16px;
    height: 16px;
}


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

.architecture-item {
    padding: 1.5rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    transition: all 0.2s;
}

.architecture-item:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.architecture-item h3 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.architecture-item h3 svg {
    color: var(--accent);
    width: 20px;
    height: 20px;
}

.architecture-item p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}

.architecture-item code {
    background-color: var(--bg-secondary);
    padding: 0.125rem 0.375rem;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--accent);
}


.features-list {
    display: grid;
    gap: 1.5rem;
}

.feature-item {
    display: flex;
    gap: 1.25rem;
    padding: 1.5rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    transition: all 0.2s;
}

.feature-item:hover {
    border-color: var(--accent);
}

.feature-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-secondary);
    border-radius: 8px;
    color: var(--accent);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.feature-item h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
}


.architecture-diagram {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.arch-layer {
    padding: 1.5rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    text-align: center;
    transition: all 0.2s;
}

.arch-layer:hover {
    background-color: var(--bg-secondary);
    border-color: var(--accent);
}

.arch-layer h3 {
    font-size: 1.125rem;
    margin-bottom: 0.5rem;
}

.arch-layer p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.5;
}

.arch-arrow {
    text-align: center;
    color: var(--accent);
    font-size: 1.5rem;
    padding: 0.5rem 0;
    font-weight: 300;
}

.tech-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-top: 2rem;
}

.tech-badge {
    padding: 0.5rem 1rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.2s;
}

.tech-badge:hover {
    border-color: var(--accent);
    color: var(--accent);
}


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

.security-item {
    padding: 1.5rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.security-item h4 {
    font-size: 1rem;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.security-item h4::before {
    content: '';
    width: 8px;
    height: 8px;
    background-color: var(--success);
    border-radius: 50%;
    flex-shrink: 0;
}

.security-item p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
}


.decisions-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.decision-item {
    padding: 1.5rem;
    background-color: var(--bg-tertiary);
    border-left: 3px solid var(--accent);
    border-radius: 4px;
}

.decision-item h3 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.decision-item p {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.7;
}


.limitations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.limitation-item {
    padding: 1.5rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.limitation-item h4 {
    font-size: 1rem;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.limitation-item p {
    color: var(--text-secondary);
    font-size: 0.875rem;
    line-height: 1.6;
}

.limitation-note {
    padding: 1.25rem;
    background-color: rgba(37, 99, 235, 0.05);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: 8px;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    font-style: italic;
}


.roadmap-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}

.roadmap-column {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
}

.roadmap-status {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--border);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.roadmap-status svg {
    width: 20px;
    height: 20px;
}

.roadmap-status.implemented {
    color: var(--success);
    border-bottom-color: var(--success);
}

.roadmap-status.in-progress {
    color: #f59e0b;
    border-bottom-color: #f59e0b;
}

.roadmap-status.planned {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.roadmap-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.roadmap-list li {
    display: flex;
    align-items: start;
    gap: 0.75rem;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.5;
}

.roadmap-list li::before {
    content: '';
    width: 6px;
    height: 6px;
    background-color: var(--text-tertiary);
    border-radius: 50%;
    flex-shrink: 0;
    margin-top: 0.5rem;
}


.why-content {
    max-width: 800px;
    margin: 0 auto;
}

.why-content p {
    font-size: 1.0625rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.why-content p:last-child {
    margin-bottom: 0;
}


.project-cta {
    padding: 4rem 0;
    text-align: center;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
}

.project-cta h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.project-cta > p {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.cta-note {
    color: var(--text-tertiary);
    font-size: 0.875rem;
    font-style: italic;
}


footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 2rem 0;
}

footer .container {
    text-align: center;
}

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


@media (max-width: 968px) {
    .project-hero h1 {
        font-size: 2.25rem;
    }
    
    .problem-solution-grid {
        grid-template-columns: 1fr;
    }
    
    .architecture-grid {
        grid-template-columns: 1fr;
    }
    
    .security-grid {
        grid-template-columns: 1fr;
    }
    
    .limitations-grid {
        grid-template-columns: 1fr;
    }
    
    .roadmap-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .project-hero {
        padding: 6rem 0 3rem;
    }
    
    .project-hero h1 {
        font-size: 1.875rem;
    }
    
    .project-hero .subtitle {
        font-size: 1rem;
    }
    
    .project-section {
        padding: 3rem 0;
    }
    
    .project-section h2 {
        font-size: 1.5rem;
    }
    
    .hero-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .hero-actions .btn {
        width: 100%;
    }
    
    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .cta-buttons .btn {
        width: 100%;
    }
}



.language-selector {
    position: relative;
}

.language-toggle {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--text-secondary);
    transition: color 0.2s;
    border-radius: 6px;
}

.language-toggle:hover {
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
}

.language-text {
    font-size: 0.875rem;
    font-weight: 600;
}

.language-dropdown {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    min-width: 150px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 1000;
}

[data-theme="dark"] .language-dropdown {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.language-dropdown.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.language-option {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.75rem 1rem;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 0.9375rem;
    transition: all 0.2s;
    text-align: left;
}

.language-option:first-child {
    border-radius: 8px 8px 0 0;
}

.language-option:last-child {
    border-radius: 0 0 8px 8px;
}

.language-option:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.language-option.active {
    background-color: var(--accent);
    color: white;
}

.language-option .flag {
    font-size: 1.25rem;
}

@media (max-width: 968px) {
    .language-selector {
        order: -1;
    }
}