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

:root {
    --bg: #0f0f0f;
    --surface: #1a1a1a;
    --border: #2e2e2e;
    --text: #e0e0e0;
    --muted: #888;
    --accent: #4f8ef7;
    --danger: #e05555;
    --success: #4caf7d;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: system-ui, -apple-system, sans-serif;
    font-size: 16px;
    line-height: 1.6;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ── Public layout ── */
header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1rem 2rem;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.site-title { font-weight: 700; font-size: 1.1rem; color: var(--text); }

nav { display: flex; gap: 1rem; }
nav a { color: var(--muted); font-size: 0.9rem; }
nav a:hover, nav a.active { color: var(--accent); text-decoration: none; }

main {
    max-width: 780px;
    margin: 2.5rem auto;
    padding: 0 1.5rem;
}

footer {
    text-align: center;
    padding: 2rem;
    color: var(--muted);
    font-size: 0.8rem;
    border-top: 1px solid var(--border);
    margin-top: 4rem;
}

/* ── Markdown content ── */
main h1, main h2, main h3 { margin: 1.5rem 0 0.5rem; line-height: 1.3; }
main h1 { font-size: 2rem; }
main h2 { font-size: 1.4rem; border-bottom: 1px solid var(--border); padding-bottom: 0.3rem; }
main p { margin: 0.25rem 0; }
main img { max-width: 100%; height: auto; }
main code {
    background: var(--surface);
    padding: 0.1em 0.4em;
    border-radius: 4px;
    font-family: 'Cascadia Code', 'Fira Code', monospace;
    font-size: 0.88em;
}
main pre {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1rem;
    overflow-x: auto;
    margin: 1rem 0;
}
main pre code { background: none; padding: 0; }
main ul, main ol { padding-left: 1.5rem; margin: 0.75rem 0; }
main blockquote {
    border-left: 3px solid var(--accent);
    padding-left: 1rem;
    color: var(--muted);
    margin: 1rem 0;
}

/* ── Admin layout ── */
.admin-page header { justify-content: space-between; }

.admin-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 0.6rem 0.8rem; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-size: 0.85rem; font-weight: 600; }

.button {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: var(--accent);
    color: #fff;
    border-radius: 5px;
    font-size: 0.9rem;
    border: none;
    cursor: pointer;
}
.button:hover { opacity: 0.85; text-decoration: none; }

.btn-link {
    background: none;
    border: none;
    color: var(--accent);
    cursor: pointer;
    font-size: inherit;
    padding: 0;
}
.btn-link.danger { color: var(--danger); }

/* ── Forms ── */
label { display: block; margin-bottom: 1rem; font-size: 0.9rem; color: var(--muted); }
label input, label textarea {
    display: block;
    width: 100%;
    margin-top: 0.3rem;
    padding: 0.5rem 0.7rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 5px;
    color: var(--text);
    font-size: 1rem;
    font-family: inherit;
}
label textarea { font-family: 'Cascadia Code', 'Fira Code', monospace; font-size: 0.9rem; resize: vertical; }
label input:focus, label textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.form-actions { display: flex; gap: 1rem; align-items: center; margin-top: 0.5rem; }
.form-actions button { padding: 0.5rem 1.4rem; background: var(--accent); color: #fff; border: none; border-radius: 5px; cursor: pointer; font-size: 1rem; }

/* ── Login page ── */
.login-page { display: flex; justify-content: center; align-items: center; min-height: 100vh; }
.login-box { width: 100%; max-width: 360px; padding: 2rem; background: var(--surface); border-radius: 8px; border: 1px solid var(--border); }
.login-box h2 { margin-bottom: 1.5rem; }

/* ── Messages ── */
.error   { color: var(--danger);  background: #2a1111; border: 1px solid var(--danger);  padding: 0.6rem 1rem; border-radius: 5px; margin-bottom: 1rem; }
.success { color: var(--success); background: #112a1a; border: 1px solid var(--success); padding: 0.6rem 1rem; border-radius: 5px; margin-bottom: 1rem; }