:root {
    --sdd-navy: #1e3a8a;
    --sdd-teal: #0f766e;
    --sdd-amber: #b45309;
    --sdd-red: #b91c1c;
    --sdd-green: #15803d;
    --sdd-ink: #0f172a;
    --sdd-muted: #475569;
    --sdd-subtle: #64748b;
    --sdd-line: #e2e8f0;
    --sdd-surface: #ffffff;
    --sdd-canvas: #f5f7fb;
    --sdd-radius: 12px;
    --sdd-shadow: 0 1px 2px rgba(15, 23, 42, 0.05), 0 10px 28px -18px rgba(15, 23, 42, 0.25);
    --sdd-font: "Manrope", "Segoe UI", system-ui, sans-serif;
    --sdd-mono: "IBM Plex Mono", "Cascadia Mono", ui-monospace, monospace;
}

html, body {
    margin: 0;
    min-height: 100%;
    background: var(--sdd-canvas);
    color: var(--sdd-ink);
    font-family: var(--sdd-font);
    -webkit-font-smoothing: antialiased;
}

a { color: var(--sdd-navy); }

h1:focus { outline: none; }

.mono { font-family: var(--sdd-mono); font-size: 0.8125rem; letter-spacing: -0.01em; }
.num { font-variant-numeric: tabular-nums; }
.muted { color: var(--sdd-subtle); }
.right { text-align: right; }
.sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.page { max-width: 1320px; margin: 0 auto; padding: 28px 24px 72px; outline: none; }
.page-header { display: flex; flex-wrap: wrap; gap: 16px; align-items: flex-end; justify-content: space-between; margin-bottom: 24px; }
.page-eyebrow { margin: 0 0 6px; font-size: 0.72rem; font-weight: 800; letter-spacing: 0.14em; text-transform: uppercase; color: var(--sdd-teal); }
.page-title { margin: 0; font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem); font-weight: 800; letter-spacing: -0.025em; }
.page-subtitle { margin: 6px 0 0; color: var(--sdd-muted); max-width: 70ch; }
.header-actions { display: flex; gap: 8px; flex-wrap: wrap; }

.panel { background: var(--sdd-surface); border: 1px solid var(--sdd-line); border-radius: var(--sdd-radius); box-shadow: var(--sdd-shadow); }
.panel + .panel { margin-top: 20px; }
.panel-pad { padding: 20px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 20px 0; flex-wrap: wrap; }
.panel-title { margin: 0 0 12px; font-size: 1rem; font-weight: 800; letter-spacing: -0.01em; }
.panel-head .panel-title { margin: 0; }

.filters { display: grid; gap: 12px; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); align-items: end; padding: 16px 20px; }
.filters-actions { display: flex; gap: 8px; align-items: center; }

.clickable-row { cursor: pointer; }
.row-deleted td { opacity: 0.5; text-decoration: line-through; }
.row-invalid td { background: #fff5f5; }
.row-errors { margin: 0; padding-left: 18px; color: var(--sdd-red); font-size: 0.82rem; }
.row-ok { color: var(--sdd-green); font-weight: 700; font-size: 0.82rem; }

.empty-state { padding: 40px 16px; text-align: center; color: var(--sdd-muted); }
.status-chip { font-weight: 700; }
.state-page { max-width: 560px; margin: 12vh auto; text-align: center; padding: 0 16px; }
.app-loading { padding: 48px; text-align: center; color: var(--sdd-muted); }
.actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 20px; }
.actions--split { justify-content: space-between; align-items: center; }

.account-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 24px;
    background:
        radial-gradient(1200px 600px at 10% -10%, rgba(30, 58, 138, 0.18), transparent 60%),
        radial-gradient(900px 500px at 110% 110%, rgba(15, 118, 110, 0.18), transparent 60%),
        var(--sdd-canvas);
}

.login-card {
    width: min(440px, 100%);
    background: var(--sdd-surface);
    border: 1px solid var(--sdd-line);
    border-radius: 18px;
    box-shadow: 0 30px 60px -30px rgba(15, 23, 42, 0.35);
    padding: 36px 32px 28px;
    text-align: center;
}

.login-mark {
    display: inline-grid; place-items: center; width: 56px; height: 56px; margin-bottom: 18px;
    border-radius: 16px; color: #fff; font-weight: 800; letter-spacing: 0.08em;
    background: linear-gradient(135deg, var(--sdd-navy), var(--sdd-teal));
}

.login-title { margin: 0 0 8px; font-size: 1.45rem; font-weight: 800; letter-spacing: -0.02em; }
.login-subtitle { margin: 0 0 24px; color: var(--sdd-muted); }
.login-footnote { margin: 20px 0 0; font-size: 0.8rem; color: var(--sdd-subtle); }

.login-button {
    display: inline-flex; align-items: center; justify-content: center; gap: 10px; width: 100%;
    padding: 12px 16px; border-radius: 10px; border: 1px solid var(--sdd-navy);
    background: var(--sdd-navy); color: #fff; font: 700 0.95rem var(--sdd-font);
    cursor: pointer; text-decoration: none; transition: background-color 120ms ease;
}

.login-button:hover { background: #172f70; }
.login-button:focus-visible { outline: 3px solid #93c5fd; outline-offset: 2px; }
.login-button--secondary { margin-top: 12px; background: #fff; color: var(--sdd-navy); }
.login-button--secondary:hover { background: #eef2fb; }

.login-alert {
    margin: 0 0 18px; padding: 12px 14px; border-radius: 10px; text-align: left;
    background: #fef2f2; color: #991b1b; border: 1px solid #fecaca; font-size: 0.9rem;
}

.login-alert--info { background: #eff6ff; color: #1e3a8a; border-color: #bfdbfe; }

.login-spinner {
    width: 36px; height: 36px; margin: 0 auto 16px; border-radius: 50%;
    border: 4px solid #dbe4f5; border-top-color: var(--sdd-navy);
    animation: sdd-spin 900ms linear infinite;
}

@keyframes sdd-spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
    .login-spinner { animation-duration: 3s; }
}

@media (max-width: 600px) {
    .page { padding: 20px 14px 56px; }
    .panel-pad { padding: 16px; }
    .login-card { padding: 28px 20px 22px; }
}

.stat-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 14px;
    margin-bottom: 20px;
}