/* ---------- Base Reset ---------- */
body {
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
    background-color: #0f172a;
    color: #e5e7eb;
    line-height: 1.75;
}

/* ---------- Layout ---------- */
header, main, footer {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

/* ---------- Header ---------- */
header h1 {
    font-size: 2.6rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    margin-bottom: 5px;
    color: #f8fafc;
}

.tagline {
    color: #94a3b8;
    font-size: 1.05rem;
    margin-bottom: 15px;
}

nav a {
    color: #38bdf8;
    text-decoration: none;
    margin-right: 12px;
    font-weight: 600;
}

nav a:hover {
    text-decoration: underline;
}

/* ---------- Post List ---------- */
.post-list {
    list-style: none;
    padding: 0;
}

.post-list li {
    margin-bottom: 22px;
}

.post-list a {
    font-size: 1.15rem;
    font-weight: 600;
    color: #e5e7eb;
    text-decoration: none;
}

.post-list a:hover {
    color: #38bdf8;
}

.date {
    display: block;
    font-size: 0.9rem;
    color: #94a3b8;
    margin-top: 4px;
}

/* ---------- Article Content ---------- */
article h2 {
    font-size: 2.1rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: #f8fafc;
}

article h3 {
    margin-top: 30px;
    font-weight: 600;
    color: #38bdf8;
}

article p {
    max-width: 75ch;
    margin-bottom: 20px;
    font-size: 1.05rem;
}

/* ---------- Images ---------- */
.post-image {
    width: 100%;
    max-width: 900px;
    display: block;
    margin: 30px auto;
    border-radius: 10px;
}

/* ---------- Footer ---------- */
footer {
    margin-top: 40px;
    border-top: 1px solid #1e293b;
    color: #94a3b8;
    font-size: 0.9rem;
}