:root {
    --ink: #0f172a;
    --ink-soft: #334155;
    --muted: #64748b;
    --line: #e2e8f0;
    --surface: #ffffff;
    --canvas: #f1f5f9;
    --accent: #0f766e;
    --accent-soft: #ccfbf1;
    --danger: #b91c1c;
    --warning: #b45309;
    --ok: #047857;
    --sidebar: #0b1220;
    --sidebar-hover: #152033;
    --radius: 10px;
    --shadow: 0 1px 2px rgba(15, 23, 42, 0.04), 0 8px 24px rgba(15, 23, 42, 0.04);
    --font: "IBM Plex Sans", "Segoe UI", sans-serif;
    --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--font);
    color: var(--ink);
    background: var(--canvas);
    font-size: 14.5px;
    line-height: 1.45;
    -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }
a:hover { color: #0d9488; }

.app-shell {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 240px 1fr;
}

.sidebar {
    background: linear-gradient(180deg, #0b1220 0%, #111827 100%);
    color: #cbd5e1;
    padding: 1.25rem 0.85rem 1.5rem;
    border-right: 1px solid rgba(255, 255, 255, 0.04);
    position: sticky;
    top: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.brand {
    padding: 0.35rem 0.75rem 1.25rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.15);
    margin-bottom: 1rem;
}

.brand-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    border-radius: 8px;
    background: var(--accent);
    color: #fff;
    font-size: 12px;
    font-weight: 650;
    letter-spacing: 0.02em;
    margin-bottom: 0.65rem;
}

.brand-title {
    color: #f8fafc;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin: 0;
}

.brand-sub {
    margin: 0.2rem 0 0;
    color: #94a3b8;
    font-size: 0.72rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.nav-section {
    display: flex;
    flex-direction: column;
    gap: 0.2rem;
    flex: 1;
}

.sidebar a.nav-link {
    color: #94a3b8;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.55rem;
    padding: 0.55rem 0.75rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: background 0.15s ease, color 0.15s ease;
}

.sidebar a.nav-link:hover {
    color: #f1f5f9;
    background: var(--sidebar-hover);
}

.sidebar a.nav-link.active {
    color: #ecfeff;
    background: rgba(15, 118, 110, 0.28);
    box-shadow: inset 0 0 0 1px rgba(45, 212, 191, 0.25);
}

.sidebar-foot {
    margin-top: auto;
    padding: 0.85rem 0.75rem 0;
    border-top: 1px solid rgba(148, 163, 184, 0.15);
}

.sidebar-user {
    color: #cbd5e1;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 0.55rem;
}

.sidebar a.nav-logout {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.82rem;
    display: inline-block;
    padding: 0.25rem 0;
}

.sidebar a.nav-logout:hover { color: #fecaca; }

.app-main {
    padding: 1.75rem 1.75rem 2.5rem;
    min-width: 0;
}

.page-header {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.35rem;
}

.page-header h1,
.page-header h2,
.app-main > h2 {
    margin: 0 0 0.2rem;
    font-size: 1.45rem;
    font-weight: 650;
    letter-spacing: -0.02em;
    color: var(--ink);
}

.page-header .page-desc,
.app-main > h2 + .page-desc {
    margin: 0;
    color: var(--muted);
    font-size: 0.88rem;
}

.panel,
.card,
.table-responsive.bg-white,
form.bg-white {
    background: var(--surface) !important;
    border: 1px solid var(--line) !important;
    border-radius: var(--radius) !important;
    box-shadow: var(--shadow) !important;
}

.card {
    overflow: hidden;
}

.card-header {
    background: #f8fafc !important;
    border-bottom: 1px solid var(--line) !important;
    color: var(--ink-soft) !important;
    font-weight: 600;
    font-size: 0.86rem;
    letter-spacing: 0.01em;
    padding: 0.75rem 1rem !important;
}

.card-body { padding: 1rem !important; }

.stat-card {
    border: 1px solid var(--line) !important;
    border-left: 3px solid var(--accent) !important;
    border-radius: var(--radius) !important;
    box-shadow: none !important;
    background: var(--surface);
    height: 100%;
}

.stat-card.border-warning { border-left-color: var(--warning) !important; }
.stat-card.border-danger { border-left-color: var(--danger) !important; }
.stat-card.border-secondary { border-left-color: #64748b !important; }
.stat-card.border-success { border-left-color: var(--ok) !important; }

.stat-card .card-body {
    padding: 1rem 1.1rem !important;
}

.stat-label {
    color: var(--muted);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 0.35rem;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 650;
    letter-spacing: -0.03em;
    color: var(--ink);
    line-height: 1.1;
}

.table {
    --bs-table-bg: transparent;
    margin-bottom: 0;
    font-size: 0.875rem;
}

.table > :not(caption) > * > * {
    padding: 0.7rem 0.85rem;
    vertical-align: middle;
    border-bottom-color: var(--line);
}

.table thead th,
.table-light th {
    background: #f8fafc !important;
    color: var(--muted) !important;
    font-size: 0.72rem;
    font-weight: 650;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    border-bottom: 1px solid var(--line) !important;
    white-space: nowrap;
}

.table-hover > tbody > tr:hover > * {
    background: #f8fafc;
}

tr.row-link {
    cursor: pointer;
}

tr.row-link:hover > * {
    background: #f0fdfa !important;
}

.table a {
    color: var(--ink);
    font-weight: 550;
    text-decoration: none;
}

.table a:hover {
    color: var(--accent);
    text-decoration: underline;
}

.badge {
    font-weight: 600;
    font-size: 0.68rem;
    letter-spacing: 0.03em;
    border-radius: 999px;
    padding: 0.35em 0.65em;
    border: 1px solid transparent;
}

.badge.bg-danger {
    background: #fee2e2 !important;
    color: #991b1b !important;
    border-color: #fecaca;
}

.badge.bg-warning {
    background: #ffedd5 !important;
    color: #9a3412 !important;
    border-color: #fed7aa;
}

.badge.bg-success {
    background: #dbeafe !important;
    color: #1e40af !important;
    border-color: #bfdbfe;
}

.badge.bg-info {
    background: #dbeafe !important;
    color: #1e40af !important;
    border-color: #bfdbfe;
}

.badge.bg-secondary {
    background: #e2e8f0 !important;
    color: #334155 !important;
    border-color: #cbd5e1;
}

tr.row-link:has(.badge.bg-danger) {
    box-shadow: inset 3px 0 0 #dc2626;
}

.pager-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem 1rem;
    margin-top: 0.85rem;
    padding: 0.65rem 0.25rem;
}

.pager-meta {
    font-size: 0.82rem;
}

.pager-controls {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    flex-wrap: wrap;
}

.pager-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 2rem;
    height: 2rem;
    padding: 0 0.55rem;
    border-radius: 8px;
    border: 1px solid var(--line);
    background: #fff;
    color: var(--ink-soft);
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 600;
}

a.pager-btn:hover {
    background: #f0fdfa;
    border-color: #99f6e4;
    color: var(--accent);
}

.pager-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
}

.pager-btn.disabled {
    opacity: 0.45;
    pointer-events: none;
}

.pager-ellipsis {
    color: var(--muted);
    padding: 0 0.2rem;
}

.pager-size {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.8rem;
    color: var(--muted);
}

.pager-size .form-select {
    width: auto;
    min-width: 4.5rem;
}

.form-control,
.form-select {
    border-color: #cbd5e1;
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--ink);
    background: #fff;
}

.form-control:focus,
.form-select:focus {
    border-color: #5eead4;
    box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.15);
}

.form-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--ink-soft);
}

.btn {
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.875rem;
}

.btn-primary {
    --bs-btn-bg: var(--accent);
    --bs-btn-border-color: var(--accent);
    --bs-btn-hover-bg: #0d9488;
    --bs-btn-hover-border-color: #0d9488;
    --bs-btn-active-bg: #0f766e;
    --bs-btn-active-border-color: #0f766e;
}

.btn-outline-secondary {
    border-color: #cbd5e1;
    color: var(--ink-soft);
}

.btn-outline-danger {
    border-color: #fecaca;
    color: var(--danger);
}

.alert {
    border-radius: 8px;
    border: 1px solid transparent;
    font-size: 0.9rem;
}

.alert-success {
    background: #ecfdf5;
    border-color: #a7f3d0;
    color: #065f46;
}

.alert-danger {
    background: #fef2f2;
    border-color: #fecaca;
    color: #991b1b;
}

pre.payload {
    max-height: 400px;
    overflow: auto;
    font-family: var(--mono);
    font-size: 12px;
    background: #0b1220;
    color: #e2e8f0;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid #1e293b;
}

code {
    font-family: var(--mono);
    font-size: 0.84em;
    color: #0f766e;
    background: #f0fdfa;
    padding: 0.1em 0.35em;
    border-radius: 4px;
}

.section-title {
    font-size: 0.95rem;
    font-weight: 650;
    margin: 0 0 0.75rem;
    color: var(--ink);
}

.login-page {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: 2rem 1rem;
    background:
        radial-gradient(1200px 500px at 10% -10%, rgba(15, 118, 110, 0.12), transparent 55%),
        radial-gradient(900px 400px at 100% 0%, rgba(15, 23, 42, 0.08), transparent 50%),
        var(--canvas);
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: 14px;
    box-shadow: var(--shadow);
    padding: 1.75rem;
}

.login-card h1 {
    font-size: 1.25rem;
    font-weight: 650;
    margin: 0 0 0.25rem;
    letter-spacing: -0.02em;
}

.login-card .login-sub {
    color: var(--muted);
    font-size: 0.88rem;
    margin-bottom: 1.35rem;
}

.dl-clean dt {
    color: var(--muted);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.dl-clean dd {
    margin-bottom: 0.65rem;
}

.accordion-item {
    border-color: var(--line) !important;
}

.accordion-button {
    font-size: 0.88rem;
    font-weight: 600;
    background: #f8fafc !important;
}

.accordion-button:not(.collapsed) {
    color: var(--ink) !important;
    box-shadow: none !important;
}

@media (max-width: 991.98px) {
    .app-shell {
        grid-template-columns: 1fr;
    }
    .sidebar {
        position: relative;
        height: auto;
    }
    .app-main {
        padding: 1.25rem;
    }
}