:root {
    --bg: #0f1115;
    --panel: #171a21;
    --panel-2: #1e222b;
    --text: #e6e8ec;
    --muted: #9aa3b2;
    --line: #2a2f3a;
    --ok: #3fb950;
    --warn: #f0b429;
    --error: #f85149;
    --accent: #4c8bf5;
    --demo: #c62828;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    font-size: 15px;
    line-height: 1.45;
}

.demo-banner {
    background: var(--demo);
    color: #fff;
    text-align: center;
    font-weight: 700;
    letter-spacing: .04em;
    padding: 6px 12px;
    text-transform: uppercase;
    font-size: 12px;
}

.tag-demo {
    background: var(--demo);
    color: #fff;
    border-radius: 4px;
    padding: 1px 8px;
    font-size: .7em;
    vertical-align: middle;
    letter-spacing: .05em;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 20px;
    background: var(--panel);
    border-bottom: 1px solid var(--line);
}

.brand { font-weight: 700; }
.topbar-right { display: flex; align-items: center; gap: 12px; }

.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 2px;
    background: var(--panel);
    padding: 0 12px;
    border-bottom: 1px solid var(--line);
}
.tabs a {
    color: var(--muted);
    text-decoration: none;
    padding: 10px 14px;
    border-bottom: 2px solid transparent;
}
.tabs a:hover { color: var(--text); }
.tabs a.active { color: var(--text); border-bottom-color: var(--accent); }

.content { padding: 20px; max-width: 1100px; margin: 0 auto; }
h1 { font-size: 1.4rem; margin: 0 0 16px; }
h2 { font-size: 1rem; margin: 0 0 8px; color: var(--muted); font-weight: 600; }

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 14px;
    margin-bottom: 24px;
}
.card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 10px;
    padding: 14px 16px;
}
.big { font-size: 1.5rem; font-weight: 700; margin: 4px 0 0; }
.ok { color: var(--ok); }
.warn { color: var(--warn); }

.controls { display: flex; flex-wrap: wrap; gap: 14px; align-items: flex-start; }
.controls form { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 14px; }
.resume-form { display: flex; flex-direction: column; gap: 8px; max-width: 360px; }
.check { font-size: .9rem; color: var(--muted); display: flex; gap: 8px; align-items: center; }

button {
    background: var(--accent);
    color: #fff;
    border: 0;
    border-radius: 8px;
    padding: 9px 14px;
    font-size: .9rem;
    cursor: pointer;
}
button:hover { filter: brightness(1.08); }
button[disabled] { opacity: .5; cursor: not-allowed; }
.btn-warn { background: var(--warn); color: #1a1a1a; }
.btn-ok { background: var(--ok); }
.btn-link { background: none; color: var(--muted); padding: 4px 6px; }
.inline { display: inline; }

table { width: 100%; border-collapse: collapse; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
th, td { text-align: left; padding: 9px 12px; border-bottom: 1px solid var(--line); font-size: .86rem; }
th { color: var(--muted); font-weight: 600; background: var(--panel-2); }
tr:last-child td { border-bottom: 0; }
.kv th { width: 230px; }
.row-critical td { background: rgba(248, 81, 73, .12); }
.mono { font-family: ui-monospace, "SFMono-Regular", Menlo, monospace; font-size: .8rem; }
.muted { color: var(--muted); }
.mb { margin-bottom: 16px; }

.alert { padding: 10px 14px; border-radius: 8px; margin: 12px 20px; }
.alert-error { background: rgba(248, 81, 73, .15); color: #ffb4ae; border: 1px solid var(--error); }
.alert-ok { background: rgba(63, 185, 80, .15); color: #9ff0a8; border: 1px solid var(--ok); }
.alert-warn { background: rgba(240, 180, 41, .15); color: #ffd98a; border: 1px solid var(--warn); }

.foot { text-align: center; padding: 20px; font-size: .8rem; border-top: 1px solid var(--line); margin-top: 20px; }

/* Login */
.login-body { display: flex; min-height: 100vh; flex-direction: column; }
.login-card {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    padding: 28px;
    width: 340px;
    margin: auto;
}
.login-card h1 { margin-top: 0; }
.login-card label { display: block; margin: 14px 0 0; font-size: .85rem; color: var(--muted); }
.login-card input { width: 100%; margin-top: 6px; padding: 9px 10px; border-radius: 8px; border: 1px solid var(--line); background: var(--panel-2); color: var(--text); }
.login-card button { width: 100%; margin-top: 18px; }