@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: #0d1117;
    color: #c9d1d9;
    min-height: 100vh;
    line-height: 1.6;
}

/* ── Nav ── */
nav {
    background-color: rgba(22, 27, 34, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid #21262d;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
}

nav .nav-inner {
    max-width: 960px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
}

nav .nav-brand {
    color: #f0f6fc;
    font-weight: 600;
    font-size: 1.05rem;
    text-decoration: none;
    letter-spacing: -0.01em;
}

nav .nav-brand:hover {
    color: #58a6ff;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 4px;
}

nav ul li a {
    display: block;
    color: #8b949e;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 14px 14px;
    text-decoration: none;
    border-radius: 6px;
    transition: color 0.15s, background-color 0.15s;
}

nav ul li a:hover {
    color: #f0f6fc;
    background-color: rgba(255, 255, 255, 0.06);
}

nav ul li .nav-active {
    display: block;
    color: #f0f6fc;
    font-size: 0.9rem;
    font-weight: 500;
    padding: 14px 14px;
    border-bottom: 2px solid #58a6ff;
}

/* ── Layout ── */
.container {
    max-width: 960px;
    width: 100%;
    margin: 0 auto;
    padding: 100px 24px 60px;
}

/* ── Hero / Profile header ── */
.hero {
    text-align: center;
    padding: 48px 0 40px;
}

.hero .profile-pic {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    border: 3px solid #21262d;
    margin-bottom: 20px;
    object-fit: cover;
}

.hero h1 {
    font-size: 2.2rem;
    font-weight: 700;
    color: #f0f6fc;
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}

.hero .subtitle {
    font-size: 1.1rem;
    color: #8b949e;
    max-width: 520px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ── Section cards ── */
.section-card {
    background-color: #161b22;
    border: 1px solid #21262d;
    border-radius: 12px;
    padding: 32px;
    margin-bottom: 20px;
}

.section-card h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #f0f6fc;
    margin-bottom: 16px;
    letter-spacing: -0.01em;
}

.section-card p {
    color: #c9d1d9;
    margin-bottom: 10px;
    line-height: 1.7;
}

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

/* ── Links ── */
a {
    color: #58a6ff;
    text-decoration: none;
    transition: color 0.15s;
}

a:hover {
    color: #79c0ff;
    text-decoration: underline;
}

/* ── Lists inside sections ── */
.section-card ul {
    list-style: none;
    padding: 0;
}

.section-card ul li {
    padding: 8px 0;
    border-bottom: 1px solid #21262d;
    font-size: 0.95rem;
}

.section-card ul li:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

/* ── Tech pills ── */
.tech-category {
    margin-bottom: 20px;
}

.tech-category:last-child {
    margin-bottom: 0;
}

.tech-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: #8b949e;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 10px;
}

.tech-pills {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tech-pill {
    background-color: #1c2333;
    border: 1px solid #30363d;
    color: #c9d1d9;
    padding: 5px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    transition: border-color 0.15s, color 0.15s;
}

.tech-pill:hover {
    border-color: #58a6ff;
    color: #f0f6fc;
}

/* ── Project links (What's Happening) ── */
.project-link {
    display: block;
    padding: 14px 16px;
    background-color: #1c2333;
    border: 1px solid #30363d;
    border-radius: 8px;
    margin-bottom: 10px;
    color: #c9d1d9;
    text-decoration: none;
    transition: border-color 0.15s, transform 0.1s;
}

.project-link:hover {
    border-color: #58a6ff;
    transform: translateY(-1px);
    text-decoration: none;
    color: #f0f6fc;
}

.project-link:last-child {
    margin-bottom: 0;
}

.project-link .project-name {
    font-weight: 600;
    color: #58a6ff;
}

.project-link .project-desc {
    font-size: 0.85rem;
    color: #8b949e;
    margin-top: 2px;
}

/* ── Blog listing ── */
.blog-listing h1 {
    font-size: 2rem;
    font-weight: 700;
    color: #f0f6fc;
    margin-bottom: 8px;
}

.blog-listing > p {
    color: #8b949e;
    margin-bottom: 28px;
}

.blog-card {
    background-color: #161b22;
    border: 1px solid #21262d;
    border-radius: 12px;
    padding: 24px 28px;
    margin-bottom: 16px;
    transition: border-color 0.15s;
}

.blog-card:hover {
    border-color: #30363d;
}

.blog-card h2 {
    margin: 0 0 6px 0;
    font-size: 1.2rem;
    font-weight: 600;
}

.blog-card h2 a {
    color: #f0f6fc;
}

.blog-card h2 a:hover {
    color: #58a6ff;
    text-decoration: none;
}

.blog-card p {
    margin: 4px 0;
    color: #8b949e;
    font-size: 0.9rem;
}

.post-meta {
    color: #8b949e;
    font-size: 0.85rem;
}

.tag {
    background-color: rgba(56, 139, 253, 0.1);
    color: #58a6ff;
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 500;
    margin-right: 4px;
}

/* ── Blog post content ── */
.post-content {
    max-width: 720px;
}

.post-content .back-link {
    display: inline-block;
    font-size: 0.9rem;
    margin-bottom: 24px;
    color: #8b949e;
}

.post-content .back-link:hover {
    color: #58a6ff;
}

.post-content h1 {
    font-size: 2rem;
    font-weight: 700;
    color: #f0f6fc;
    margin-bottom: 8px;
}

.post-content hr {
    border: none;
    border-top: 1px solid #21262d;
    margin: 20px 0 28px;
}

.post-content p {
    margin-bottom: 16px;
    line-height: 1.75;
}

.post-content h2 {
    font-size: 1.3rem;
    font-weight: 600;
    color: #f0f6fc;
    margin: 32px 0 12px;
}

.post-content h3 {
    font-size: 1.1rem;
    font-weight: 600;
    color: #f0f6fc;
    margin: 24px 0 10px;
}

.post-content img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.post-content code {
    background-color: #1c2333;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.88em;
    font-family: 'SFMono-Regular', Consolas, monospace;
}

.post-content pre {
    background-color: #161b22;
    border: 1px solid #21262d;
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 16px 0;
}

.post-content pre code {
    background: none;
    padding: 0;
}

.post-content blockquote {
    border-left: 3px solid #58a6ff;
    margin: 16px 0;
    padding-left: 16px;
    color: #8b949e;
}

.post-content ul,
.post-content ol {
    padding-left: 24px;
    margin-bottom: 16px;
}

.post-content ul {
    list-style: disc;
}

.post-content li {
    margin-bottom: 6px;
    font-size: 1rem;
}

/* ── Footer ── */
footer {
    border-top: 1px solid #21262d;
    margin-top: 60px;
    padding: 24px 0;
}

.footer-inner {
    max-width: 960px;
    margin: 0 auto;
    padding: 0 24px;
    text-align: center;
}

footer p {
    color: #484f58;
    font-size: 0.85rem;
}

footer a {
    color: #6e7681;
}

footer a:hover {
    color: #8b949e;
}

/* ── Responsive ── */
@media (max-width: 640px) {
    .container {
        padding: 80px 16px 40px;
    }

    .hero {
        padding: 32px 0;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .section-card {
        padding: 24px 20px;
    }

    nav .nav-inner {
        padding: 0 16px;
    }

    nav ul li a {
        padding: 14px 10px;
        font-size: 0.85rem;
    }
}