:root {
    --bg: #0f172a;
    --card: #ffffff;
    --text: #1e293b;
    --muted: #64748b;
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --ok: #15803d;
    --ok-bg: #dcfce7;
    --err: #b91c1c;
    --err-bg: #fee2e2;
    --border: #e2e8f0;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
    background: #f1f5f9;
    color: var(--text);
}

.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #0f172a, #1e293b);
}

.auth-card {
    background: var(--card);
    padding: 2.5rem;
    border-radius: 12px;
    width: 360px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.25);
}

.auth-card h1 { margin: 0 0 0.25rem; font-size: 1.4rem; }
.subtitle { color: var(--muted); margin: 0 0 1.25rem; font-size: 0.9rem; }

label { display: block; font-size: 0.85rem; margin: 0.75rem 0 0.25rem; font-weight: 600; }

input[type="text"], input[type="password"], input[type="datetime-local"] {
    width: 100%;
    padding: 0.6rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 1rem;
}

button {
    cursor: pointer;
    border: none;
    border-radius: 8px;
    background: var(--primary);
    color: #fff;
    padding: 0.65rem 1rem;
    font-size: 0.95rem;
    font-weight: 600;
}
button:hover { background: var(--primary-dark); }
button:disabled { opacity: 0.6; cursor: not-allowed; }

.auth-card form button { width: 100%; margin-top: 1.25rem; }

.link-button {
    background: none;
    color: var(--primary);
    padding: 0;
    font-weight: 600;
    width: auto;
}
.link-button:hover { background: none; text-decoration: underline; }

.inline-form { display: inline; margin-top: 0.5rem; }
.back-link { display: block; margin-top: 1rem; font-size: 0.85rem; color: var(--muted); text-decoration: none; }

.alert { padding: 0.65rem 0.9rem; border-radius: 8px; font-size: 0.9rem; margin-bottom: 1rem; }
.alert-error { background: var(--err-bg); color: var(--err); }
.alert-ok { background: var(--ok-bg); color: var(--ok); }

.topbar {
    background: var(--bg);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1.5rem;
}
.brand { font-weight: 700; }
.topbar-right { display: flex; align-items: center; gap: 1rem; font-size: 0.9rem; }
.topbar .link-button { color: #cbd5e1; }

.container { max-width: 1000px; margin: 1.5rem auto; padding: 0 1rem; }

.card {
    background: var(--card);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}
.card h2 { margin-top: 0; font-size: 1.1rem; }
.muted { color: var(--muted); font-size: 0.9rem; }
.muted.small { font-size: 0.8rem; margin-top: 0.4rem; }

.form-row { display: flex; gap: 1rem; align-items: end; flex-wrap: wrap; }
.form-row > div { flex: 1; min-width: 180px; }
.form-row-button { flex: 0 0 auto; }

.log-table { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
.log-table th, .log-table td { text-align: left; padding: 0.55rem 0.6rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.log-table th { color: var(--muted); font-weight: 600; font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.03em; }

.badge { display: inline-block; padding: 0.15rem 0.55rem; border-radius: 999px; font-size: 0.78rem; font-weight: 600; }
.badge-ok { background: var(--ok-bg); color: var(--ok); }
.badge-error { background: var(--err-bg); color: var(--err); }