/* ===== Reset & Base ===== */

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background-size: cover;
    background-position: center;
    min-height: 100vh;
    color: #222;
    position: relative;
}

.overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.35);
    z-index: -1;
}

/* ===== Header ===== */

.site-header {
    text-align: center;
    padding: 3rem 1rem 1.5rem;
    color: white;
}

.site-title {
    margin: 0;
    font-size: 3rem;
    font-weight: 800;
}

.site-subtitle {
    margin-top: 0.5rem;
    font-size: 1.1rem;
    opacity: 0.9;
}

/* ===== Navigation ===== */

.main-nav {
    text-align: center;
    margin-bottom: 2rem;
}

.main-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.main-nav li {
    display: inline-block;
    margin: 0 0.5rem;
}

.main-nav a {
    text-decoration: none;
    padding: 0.6rem 1.2rem;
    border-radius: 999px;
    background: white;
    color: #222;
    font-weight: 500;
    transition: 0.2s ease;
}

.main-nav li.active a,
.main-nav a:hover {
    background: #111;
    color: white;
}

/* ===== Content Card ===== */

.content-wrapper {
    display: flex;
    justify-content: center;
    padding: 0 1rem 3rem;
}

.content-card {
    background: rgba(255, 255, 255, 0.95);
    max-width: 900px;
    width: 100%;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.2);
}

/* ===== Markdown Styling ===== */

.content-card h1,
.content-card h2,
.content-card h3 {
    margin-top: 2rem;
}

.content-card a {
    color: #0056b3;
    text-decoration: none;
}

.content-card a:hover {
    text-decoration: underline;
}

.content-card pre {
    background: #f5f5f5;
    padding: 1rem;
    overflow-x: auto;
    border-radius: 10px;
}

.content-card code {
    background: #eee;
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
}

.content-card blockquote {
    border-left: 4px solid #ccc;
    padding-left: 1rem;
    color: #555;
}

/* ===== Footer ===== */

.site-footer {
    text-align: center;
    padding: 2rem 1rem;
    color: white;
}

.footer-logo {
  height: 40px;
  width: auto;
  max-width: 220px;
  display: inline-block;
}