:root {
    --pb-bg: #f3f5f9;
    --pb-card: #ffffff;
    --pb-border: #e6e9ef;
    --pb-text: #18212f;
    --pb-muted: #6b7280;
    --pb-blue: #0d6efd;
    --pb-green: #2f9e44;
}

body {
    background: radial-gradient(circle at top, #ffffff 0%, var(--pb-bg) 62%);
    color: var(--pb-text);
}

.container.py-4,
.container.py-5 {
    max-width: 1380px;
}

.prikbord-shell {
    display: grid;
    grid-template-columns: 280px minmax(0, 1fr);
    gap: 1.5rem;
    align-items: start;
}

.prikbord-sidebar {
    position: sticky;
    top: 1rem;
    align-self: start;
}

.prikbord-main {
    min-width: 0;
}

.prikbord-panel {
    background: linear-gradient(180deg, #ffffff 0%, #f8fafc 100%);
    border: 1px solid var(--pb-border);
    border-radius: 22px;
    box-shadow: 0 10px 28px rgba(15, 23, 42, .06);
    overflow: hidden;
}

.panel-head {
    padding: 1rem 1rem .75rem;
    border-bottom: 1px solid var(--pb-border);
}

.panel-body {
    padding: 1rem;
}

.section-title {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 800;
    letter-spacing: -.02em;
    color: #111827;
}

.section-subtitle {
    color: var(--pb-muted);
    font-size: .92rem;
    margin-top: .2rem;
}

.sidebar-links {
    display: grid;
    gap: .65rem;
}

.sidebar-links a {
    position: relative;
    display: flex;
    align-items: center;
    gap: .85rem;
    padding: .95rem 1rem;
    border-radius: 16px;
    text-decoration: none;
    color: var(--pb-text);
    background: #fff;
    border: 1px solid var(--pb-border);
    box-shadow: 0 6px 18px rgba(15, 23, 42, .04);
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease;
}

.sidebar-links a::before {
    content: "";
    position: absolute;
    left: 0;
    top: 10px;
    bottom: 10px;
    width: 4px;
    border-radius: 999px;
    background: linear-gradient(180deg, var(--pb-blue) 0%, var(--pb-green) 100%);
    opacity: 0;
    transition: opacity .18s ease;
}

.sidebar-links a:hover {
    transform: translateX(4px);
    border-color: rgba(13, 110, 253, .22);
    background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
    box-shadow: 0 14px 28px rgba(15, 23, 42, .09);
}

.sidebar-links a:hover::before {
    opacity: 1;
}

.sidebar-links i {
    width: 22px;
    height: 22px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--pb-blue);
    flex: 0 0 22px;
}

.sidebar-links span {
    font-weight: 600;
    line-height: 1.2;
}

.sidebar-links a:hover span {
    color: #0b5ed7;
}

.card.border.rounded-4.shadow-sm.h-100 {
    background: var(--pb-card);
    border: 1px solid var(--pb-border) !important;
    border-radius: 18px !important;
    box-shadow: 0 8px 24px rgba(15,23,42,.06) !important;
    transition: transform .18s ease, box-shadow .18s ease, border-color .18s ease;
    overflow: hidden;
}

.card.border.rounded-4.shadow-sm.h-100:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 36px rgba(15,23,42,.12) !important;
    border-color: rgba(13, 110, 253, .18) !important;
}

.card-body.py-3.px-4 {
    padding-top: 1rem !important;
    padding-bottom: 1rem !important;
}

.card-body p,
.card-body div,
.card-body span {
    color: var(--pb-text);
}

.card-body .fw-semibold {
    font-weight: 700 !important;
}

.text-muted {
    color: var(--pb-muted) !important;
}

@media (max-width: 1199.98px) {
    .prikbord-shell {
        grid-template-columns: 1fr;
    }

    .prikbord-sidebar {
        position: static;
    }
}

@media (max-width: 767.98px) {
    .container.py-4,
    .container.py-5 {
        padding-left: .85rem;
        padding-right: .85rem;
    }

    .panel-body {
        padding: .85rem;
    }

    .sidebar-links a {
        padding: .85rem .95rem;
        border-radius: 14px;
    }
}