:root {
    --bg: #0b1220;
    --bg-panel: #111a2c;
    --bg-panel-alt: #16223a;
    --border: #223151;
    --text: #e6ebf5;
    --text-dim: #93a2c2;
    --accent: #4f8cff;
    --accent-dim: #2a4a8a;
    --ok: #35c97a;
    --warn: #e0a83e;
    --danger: #ef5a6f;
    --radius: 10px;
    font-size: 15px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.5;
}

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

.shell { display: flex; min-height: 100vh; }

.sidebar {
    width: 240px;
    flex-shrink: 0;
    background: var(--bg-panel);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 20px 0;
}

.sidebar__brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 20px 20px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 16px;
}
.brand__mark {
    background: var(--accent);
    color: #fff;
    font-weight: 700;
    font-size: 13px;
    width: 32px; height: 32px;
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
}
.brand__name { font-weight: 600; }
.brand__name em { color: var(--text-dim); font-style: normal; font-weight: 400; }

.sidebar__nav { display: flex; flex-direction: column; gap: 2px; padding: 0 10px; flex: 1; }
.sidebar__nav a {
    color: var(--text-dim);
    padding: 9px 12px;
    border-radius: 8px;
    font-size: 14px;
}
.sidebar__nav a:hover, .sidebar__nav a.is-active {
    background: var(--bg-panel-alt);
    color: var(--text);
    text-decoration: none;
}

.sidebar__footer {
    padding: 16px 20px 0;
    border-top: 1px solid var(--border);
    margin-top: 16px;
    font-size: 13px;
    color: var(--text-dim);
}
.sidebar__user { margin-bottom: 8px; }
.link-btn {
    background: none; border: none; color: var(--text-dim);
    cursor: pointer; padding: 0; font: inherit; text-decoration: underline;
}
.sidebar__phase-flag { margin-top: 14px; }

.tag { display: inline-block; padding: 2px 8px; border-radius: 999px; font-size: 12px; font-weight: 600; }
.tag--on { background: rgba(53,201,122,.15); color: var(--ok); }
.tag--off { background: rgba(224,168,62,.15); color: var(--warn); }
.tag--neutral { background: var(--bg-panel-alt); color: var(--text-dim); }

.main { flex: 1; min-width: 0; }

.topbar {
    padding: 22px 32px;
    border-bottom: 1px solid var(--border);
}
.topbar h1 { margin: 0; font-size: 20px; }

.content { padding: 28px 32px; max-width: 1200px; }

.flash { padding: 12px 16px; border-radius: var(--radius); margin-bottom: 20px; font-size: 14px; }
.flash--success { background: rgba(53,201,122,.12); border: 1px solid rgba(53,201,122,.3); color: var(--ok); }
.flash--error { background: rgba(239,90,111,.12); border: 1px solid rgba(239,90,111,.3); color: var(--danger); }

.panel {
    background: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px 24px;
    margin-bottom: 22px;
}
.panel h2 { margin-top: 0; font-size: 16px; }

.grid { display: grid; gap: 18px; }
.grid--stats { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); }

.stat { background: var(--bg-panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px 18px; }
.stat__value { font-size: 26px; font-weight: 700; }
.stat__label { color: var(--text-dim); font-size: 13px; margin-top: 4px; }

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); }
th { color: var(--text-dim); font-weight: 600; font-size: 12px; text-transform: uppercase; letter-spacing: .03em; }
tr:hover td { background: var(--bg-panel-alt); }

.btn {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--accent); color: #fff; border: none;
    padding: 9px 16px; border-radius: 8px; font-size: 14px; font-weight: 600;
    cursor: pointer;
}
.btn:hover { background: #3d78e8; text-decoration: none; }
.btn--ghost { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn--ghost:hover { background: var(--bg-panel-alt); }
.btn--danger { background: var(--danger); }
.btn--sm { padding: 6px 12px; font-size: 13px; }

.form-group { margin-bottom: 16px; }
.form-group label { display: block; margin-bottom: 6px; font-size: 13px; color: var(--text-dim); }
.form-group input, .form-group select, .form-group textarea {
    width: 100%; background: var(--bg); border: 1px solid var(--border);
    border-radius: 8px; padding: 10px 12px; color: var(--text); font: inherit;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
    outline: none; border-color: var(--accent);
}
.form-row { display: flex; gap: 16px; flex-wrap: wrap; }
.form-row .form-group { flex: 1; min-width: 200px; }
.form-actions { display: flex; gap: 10px; margin-top: 20px; }
.hint { color: var(--text-dim); font-size: 12px; margin-top: 4px; }

.badge {
    display: inline-block; padding: 3px 10px; border-radius: 999px;
    font-size: 12px; font-weight: 600; background: var(--bg-panel-alt); color: var(--text-dim);
}
.badge--draft { color: var(--text-dim); }
.badge--active, .badge--completed, .badge--ready_for_dr, .badge--indexed { color: var(--ok); background: rgba(53,201,122,.12); }
.badge--queued, .badge--measuring, .badge--generating, .badge--indexing, .badge--monitoring, .badge--planning, .badge--preparing, .badge--submitting, .badge--verifying, .badge--submitted, .badge--valid { color: var(--accent); background: rgba(79,140,255,.12); }
.badge--partial, .badge--awaiting { color: var(--warn); background: rgba(224,168,62,.12); }
.badge--failed, .badge--disabled, .badge--degraded, .badge--rejected, .badge--invalid { color: var(--danger); background: rgba(239,90,111,.12); }
.badge--probed, .badge--classified, .badge--recorded { color: var(--accent); background: rgba(79,140,255,.12); }
.badge--retired { color: var(--text-dim); background: var(--bg-panel-alt); }

.empty-state { padding: 60px 20px; text-align: center; color: var(--text-dim); }

.error-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.error-shell h1 { font-size: 48px; margin-bottom: 8px; }

.login-shell {
    max-width: 380px; margin: 12vh auto; background: var(--bg-panel);
    border: 1px solid var(--border); border-radius: var(--radius); padding: 32px;
}
.login-shell h1 { font-size: 18px; text-align: center; margin-bottom: 24px; }

.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 13px; }
.text-dim { color: var(--text-dim); }
.section-actions { display: flex; justify-content: space-between; align-items: center; margin-bottom: 18px; }