:root {
    --bg-primary: #0a0c10;
    --bg-card: #12161f;
    --bg-card-hover: #181e2b;
    --border-color: #242c3d;
    --text-primary: #f0f6fc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-blue: #38bdf8;
    --accent-blue-bg: rgba(56, 189, 248, 0.1);
    --accent-green: #34d399;
    --accent-green-bg: rgba(52, 211, 153, 0.1);
    --accent-purple: #c084fc;
    --accent-purple-bg: rgba(192, 132, 252, 0.1);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    padding: 40px 20px;
}

.container {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

/* Hero Section */
.hero {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 48px 36px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.hero-avatar-wrap {
    position: relative;
    width: 120px;
    height: 120px;
    margin: 0 auto 20px auto;
}

.hero-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    border: 3px solid var(--border-color);
    object-fit: cover;
}

.hero-name {
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: #ffffff;
    margin-bottom: 8px;
}

.hero-tagline {
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--accent-blue);
    margin-bottom: 16px;
}

.hero-location {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 14px;
    letter-spacing: 0.02em;
}

.hero-bio {
    max-width: 640px;
    margin: 0 auto 20px auto;
    color: var(--text-secondary);
    font-size: 0.98rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

.hero-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 0.92rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
}

.btn-primary {
    background-color: var(--accent-blue);
    color: #0b1120;
    font-weight: 600;
}

.btn-primary:hover {
    background-color: #7dd3fc;
    transform: translateY(-2px);
}

.btn-outline {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-outline:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: var(--text-secondary);
    transform: translateY(-2px);
}

/* Card Sections */
.card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 36px 32px;
}

.section-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 24px;
    letter-spacing: -0.01em;
}

/* Education */
.education-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.education-item {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    padding: 20px;
}

.edu-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}

.edu-header h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #ffffff;
}

.edu-date {
    font-size: 0.85rem;
    color: var(--accent-blue);
    font-family: var(--font-mono);
}

.edu-degree {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.edu-desc {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.6;
}

/* Skills */
.skills-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.skill-group h4 {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-muted);
    margin-bottom: 10px;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag {
    background-color: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 500;
}

/* Projects Grid */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 18px;
}

@media (max-width: 640px) {
    .projects-grid {
        grid-template-columns: 1fr;
    }
}

.project-card {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    padding: 22px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: all 0.2s ease;
}

.project-card:hover {
    background-color: var(--bg-card-hover);
    border-color: var(--border-color);
    transform: translateY(-3px);
}

.project-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 10px;
}

.project-header h3 a {
    color: #ffffff;
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 600;
}

.project-header h3 a:hover {
    color: var(--accent-blue);
}

.project-badge {
    background-color: var(--accent-purple-bg);
    color: var(--accent-purple);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 6px;
    white-space: nowrap;
}

.project-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 16px;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.project-tags span {
    background-color: rgba(255, 255, 255, 0.04);
    color: var(--text-muted);
    font-size: 0.75rem;
    font-family: var(--font-mono);
    padding: 3px 8px;
    border-radius: 4px;
}

/* Archives */
.archives-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.archive-item {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    padding: 18px 20px;
}

.archive-item h4 a {
    color: #ffffff;
    text-decoration: none;
    font-size: 1.05rem;
    font-weight: 600;
}

.archive-item h4 a:hover {
    color: var(--accent-blue);
}

.archive-item p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    margin-top: 6px;
}

/* Footer */
.footer {
    text-align: center;
    padding: 24px 0 10px 0;
    color: var(--text-muted);
    font-size: 0.88rem;
}

.footer a {
    color: var(--text-secondary);
    text-decoration: none;
}

.footer a:hover {
    color: var(--accent-blue);
}

.footer-sub {
    margin-top: 6px;
    font-size: 0.82rem;
    color: var(--text-muted);
    font-style: italic;
}