:root {
    --bg: #f4f5f7;
    --card-bg: #ffffff;
    --border: #dde1e6;
    --text: #1f2430;
    --muted: #6b7280;
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --danger: #dc2626;
    --ok: #16a34a;
    --warn: #d97706;
}

* { box-sizing: border-box; }

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

.topbar {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
}

.topbar-inner {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.brand {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text);
    text-decoration: none;
}

.nav { display: flex; gap: 1.25rem; flex: 1; }
.nav a { color: var(--text); text-decoration: none; font-size: 0.95rem; }
.nav a:hover { color: var(--primary); }

.user-box { display: flex; align-items: center; gap: 1rem; font-size: 0.9rem; color: var(--muted); }
.user-box a { color: var(--primary); text-decoration: none; }

.content { max-width: 1100px; margin: 0 auto; padding: 1.5rem; }

h1 { font-size: 1.5rem; margin-bottom: 1rem; }
h2 { font-size: 1.1rem; margin: 0 0 0.75rem; }

.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1.25rem;
    margin-bottom: 1.25rem;
}

.muted { color: var(--muted); font-size: 0.9rem; }

.flash { padding: 0.75rem 1rem; border-radius: 8px; margin-bottom: 1rem; font-size: 0.95rem; }
.flash-success { background: #dcfce7; color: #166534; }
.flash-error { background: #fee2e2; color: #991b1b; }

form.stack-form { display: flex; flex-direction: column; gap: 0.9rem; max-width: 480px; }
form.inline-form { display: flex; align-items: flex-end; gap: 1rem; flex-wrap: wrap; }
form.inline { display: inline; }

label { display: flex; flex-direction: column; gap: 0.3rem; font-size: 0.9rem; color: var(--text); }
label.grow { flex: 1; }
label.checkbox { flex-direction: row; align-items: center; gap: 0.5rem; }

input[type="text"], input[type="password"], select {
    padding: 0.5rem 0.6rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.95rem;
    min-width: 200px;
}

.mono { font-family: "SFMono-Regular", Menlo, Consolas, monospace; }

button {
    cursor: pointer;
    border: none;
    border-radius: 6px;
    padding: 0.55rem 1rem;
    background: var(--primary);
    color: #fff;
    font-size: 0.95rem;
}
button:hover { background: var(--primary-dark); }
button:disabled { background: #a1a1aa; cursor: not-allowed; }

.btn-primary { background: var(--primary); }
.btn-danger { background: var(--danger); }
.btn-small { padding: 0.3rem 0.6rem; font-size: 0.85rem; }
.btn-large { padding: 0.9rem 2rem; font-size: 1.1rem; }

.table { width: 100%; border-collapse: collapse; }
.table th, .table td { text-align: left; padding: 0.55rem 0.6rem; border-bottom: 1px solid var(--border); font-size: 0.92rem; }
.table th { color: var(--muted); font-weight: 600; }

.badge { display: inline-block; padding: 0.15rem 0.5rem; border-radius: 999px; font-size: 0.78rem; font-weight: 600; }
.badge-ok { background: #dcfce7; color: #166534; }
.badge-warn { background: #fef3c7; color: #92400e; }
.badge-error { background: #fee2e2; color: #991b1b; }

.camera-preview img, .test-snapshot {
    max-width: 100%;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: #111;
}

.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--bg);
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

.login-box {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    width: 100%;
    max-width: 340px;
}

.login-box form { display: flex; flex-direction: column; gap: 1rem; margin-top: 1rem; }