:root {
    --nk-primary: #22405E;
    --nk-primary-dark: #16293D;
    --nk-primary-light: #3A5E85;
    --nk-accent: #B98B4E;
    --nk-danger: #B3261E;
    --nk-bg: #F5F6F8;
    --nk-sidebar-width: 250px;
    --nk-radius: 0.85rem;
    --nk-shadow: 0 2px 10px rgba(20, 30, 45, 0.06);
    --nk-shadow-hover: 0 6px 18px rgba(20, 30, 45, 0.1);
}

body {
    background-color: var(--nk-bg);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

[x-cloak] {
    display: none !important;
}

.card {
    border-radius: var(--nk-radius) !important;
    box-shadow: var(--nk-shadow) !important;
    border: none;
}

.nk-list-card {
    display: block;
    transition: box-shadow 0.15s ease-in-out, transform 0.15s ease-in-out;
}

.nk-list-card:hover {
    box-shadow: var(--nk-shadow-hover) !important;
    transform: translateY(-1px);
}

.btn {
    border-radius: 0.6rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    white-space: nowrap;
}

.btn-sm {
    border-radius: 0.5rem;
}

.btn-nk-primary {
    background-color: var(--nk-primary);
    border-color: var(--nk-primary);
    color: #fff;
}

.btn-nk-primary:hover {
    background-color: var(--nk-primary-dark);
    border-color: var(--nk-primary-dark);
    color: #fff;
}

.form-control, .form-select {
    border-radius: 0.55rem;
    border-color: #dadfe5;
}

.form-control:focus, .form-select:focus {
    border-color: var(--nk-primary-light);
    box-shadow: 0 0 0 0.2rem rgba(34, 64, 94, 0.12);
}

.badge {
    font-weight: 600;
    letter-spacing: 0.01em;
}

.table {
    --bs-table-bg: transparent;
}

/* ---------- Topbar (mobile) ---------- */
.nk-topbar {
    position: sticky;
    display: none;
    align-items: center;
    justify-content: flex-end;
    background-color: var(--nk-primary);
    color: #fff;
    padding: 0.75rem 1rem;
    top: 0;
    z-index: 20;
}

.nk-topbar-brand {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.nk-topbar-btn {
    background: none;
    border: none;
    color: #fff;
    font-size: 1.4rem;
    line-height: 1;
}

/* ---------- Layout shell ---------- */
.nk-shell {
    display: flex;
    min-height: 100vh;
}

.nk-sidebar {
    width: var(--nk-sidebar-width);
    flex-shrink: 0;
    background-color: var(--nk-primary);
    color: #fff;
    display: flex;
    flex-direction: column;
    padding: 1.25rem 0.9rem;
}

.nk-sidebar .logo-area {
    display: flex;
    align-items: center;
    gap: 0.55rem;
    font-weight: 700;
    font-size: 1.1rem;
    padding: 0.5rem 0.6rem 1.25rem;
    letter-spacing: 0.01em;
}

.nk-sidebar .logo-area i {
    color: var(--nk-accent);
    font-size: 1.4rem;
}

.nk-sidebar nav {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
    flex: 1;
}

.nk-sidebar .nav-link {
    color: rgba(255, 255, 255, 0.82);
    padding: 0.65rem 0.8rem;
    border-radius: 0.6rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-weight: 500;
}

.nk-sidebar .nav-link i {
    width: 1.1rem;
    text-align: center;
}

.nk-sidebar .nav-link:hover {
    background-color: rgba(255, 255, 255, 0.08);
    color: #fff;
}

.nk-sidebar .nav-link.active {
    background-color: var(--nk-accent);
    color: #1b1608;
}

.nk-sidebar .logout-area {
    padding-top: 1rem;
}

.nk-sidebar-backdrop {
    display: none;
}

.nk-main {
    flex: 1;
    padding: 1.75rem;
    max-width: 100%;
    overflow-x: hidden;
}

/* ---------- Stat tiles ---------- */
.nk-stat {
    border-radius: var(--nk-radius);
    box-shadow: var(--nk-shadow);
    background: #fff;
    padding: 1.1rem 1.3rem;
}

.nk-stat .label {
    color: #6b7685;
    font-size: 0.82rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.nk-stat .value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--nk-primary-dark);
}

/* ---------- Mobile responsive sidebar ---------- */
@media (max-width: 900px) {
    .nk-topbar {
        display: flex;
    }

    .nk-shell {
        display: block;
    }

    .nk-sidebar {
        position: fixed;
        inset: 0 25% 0 auto;
        left: -100%;
        transition: left 0.2s ease-in-out;
        z-index: 40;
        min-height: 100vh;
    }

    .nk-sidebar.open {
        left: 0;
        width: 78%;
    }

    .nk-sidebar-backdrop.show {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(10, 15, 25, 0.4);
        z-index: 30;
    }

    .nk-main {
        padding: 1.1rem;
    }
}

/* ---------- Print ---------- */
@media print {
    .no-print {
        display: none !important;
    }

    .nk-main {
        padding: 0;
    }

    body {
        background: #fff;
    }
}