:root {
    --app-bg: #f5f7fb;
    --app-ink: #172033;
    --app-muted: #667085;
    --app-primary: #2457d6;
    --app-panel: #ffffff;
    --app-border: #d9e0ec;
}

body {
    min-height: 100vh;
    background: var(--app-bg);
    color: var(--app-ink);
}

.app-navbar {
    background: #111827;
}

.app-navbar .navbar-brand {
    color: #ffffff;
    font-weight: 700;
}

.app-sidebar {
    background: #ffffff;
    border-bottom: 1px solid var(--app-border);
}

.app-sidebar__inner {
    width: min(100% - 24px, 1140px);
    margin: 0 auto;
    display: flex;
    gap: 6px;
    overflow-x: auto;
    padding: 10px 0;
}

.app-nav-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--app-muted);
    text-decoration: none;
    border-radius: 8px;
    padding: 8px 12px;
    white-space: nowrap;
}

.app-nav-link:hover {
    background: #eef3ff;
    color: var(--app-primary);
}

.app-panel {
    background: var(--app-panel);
    border: 1px solid var(--app-border);
    border-radius: 8px;
    padding: 28px;
    box-shadow: 0 10px 24px rgba(17, 24, 39, 0.06);
}

.app-module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 14px;
}

.app-module-card {
    min-height: 148px;
    background: #ffffff;
    border: 1px solid var(--app-border);
    border-radius: 8px;
    color: var(--app-ink);
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 20px;
    text-decoration: none;
    transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease;
}

.app-module-card:hover {
    border-color: rgba(36, 87, 214, 0.45);
    box-shadow: 0 14px 28px rgba(17, 24, 39, 0.08);
    transform: translateY(-2px);
}

.app-module-card i {
    color: var(--app-primary);
    font-size: 26px;
}

.app-module-card span {
    color: var(--app-muted);
    font-size: 14px;
}

.app-empty-state {
    min-height: 220px;
    border: 1px dashed var(--app-border);
    border-radius: 8px;
    display: grid;
    place-items: center;
    align-content: center;
    gap: 8px;
    color: var(--app-muted);
    text-align: center;
    padding: 24px;
}

.app-empty-state i {
    color: var(--app-primary);
    font-size: 34px;
}

.app-empty-state strong {
    color: var(--app-ink);
}

.app-table {
    margin-bottom: 0;
}

.app-table th {
    color: var(--app-muted);
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
}

.app-form {
    max-width: 860px;
}

.auth-page {
    display: grid;
    place-items: center;
    padding: 24px;
    background:
        linear-gradient(135deg, rgba(36, 87, 214, 0.16), rgba(20, 184, 166, 0.12)),
        var(--app-bg);
}

.auth-card {
    width: min(100%, 390px);
    background: #ffffff;
    border: 1px solid var(--app-border);
    border-radius: 8px;
    padding: 30px;
    box-shadow: 0 18px 44px rgba(17, 24, 39, 0.12);
}