/* -------- GLOBAL -------- */
body {
    margin: 0;
    font-family: system-ui, sans-serif;
    line-height: 1.6;
    background: var(--bg);
    color: var(--fg);
    padding: 2rem;
}

:root {
    --bg: #f7f7f7;
    --fg: #222;
    --card-bg: white;
    --border: #ddd;
    --accent: #4a6cf7;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #1e1e1e;
        --fg: #eee;
        --card-bg: #2a2a2a;
        --border: #444;
        --accent: #6c8dff;
    }
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

h1 {
    margin-bottom: 0.2rem;
    font-size: 2.2rem;
}

.tagline {
    opacity: 0.8;
}

/* -------- CONTENT -------- */
.card {
    background: var(--card-bg);
    padding: 1.5rem;
    margin: 1.5rem auto;
    max-width: 700px;
    border: 1px solid var(--border);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06);
}

h2 {
    margin-top: 0;
}

/* -------- LINKS + BUTTONS -------- */
a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

.button {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.6rem 1.2rem;
    background: var(--accent);
    color: white;
    border-radius: 6px;
    text-decoration: none;
}

.button:hover {
    opacity: 0.9;
}

.button.secondary {
    background: transparent;
    color: #cbd5e1;
    border: 1px solid #334155;
}

.button.secondary:hover {
    background: #1e293b;
}

/* -------- FOOTER -------- */
footer {
    text-align: center;
    opacity: 0.8;
    font-size: 0.9rem;
    margin-top: 2rem;
}