:root {
    --vr-white: #ffffff;
    --vr-black: #111111;
    --vr-gray: #6c757d;
    --vr-border: rgba(17, 17, 17, 0.14);
    --vr-surface: #f7f7f7;
}

body {
    min-height: 100vh;
    color: var(--vr-black);
    background:
        radial-gradient(circle at top left, rgba(17, 17, 17, 0.06), transparent 28%),
        linear-gradient(180deg, #ffffff 0%, #f3f3f3 100%);
}

.auth-shell {
    min-height: 100vh;
}

.brand-panel {
    border: 1px solid var(--vr-border);
    background: rgba(255, 255, 255, 0.88);
    backdrop-filter: blur(12px);
    box-shadow: 0 24px 70px rgba(17, 17, 17, 0.08);
}

.brand-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.9rem;
    border: 1px solid var(--vr-border);
    border-radius: 999px;
    font-size: 0.85rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    background: var(--vr-white);
}

.brand-divider {
    width: 72px;
    height: 3px;
    border-radius: 999px;
    background: var(--vr-black);
}

.auth-card {
    border: 1px solid var(--vr-border);
    border-radius: 1.25rem;
    background: var(--vr-white);
    box-shadow: 0 20px 50px rgba(17, 17, 17, 0.08);
}

.form-control,
.card,
.alert {
    border-radius: 0.95rem;
}

.form-control {
    padding: 0.9rem 1rem;
    border-color: var(--vr-border);
}

.form-control:focus {
    border-color: var(--vr-black);
    box-shadow: 0 0 0 0.18rem rgba(17, 17, 17, 0.1);
}

.btn-dark {
    background-color: var(--vr-black);
    border-color: var(--vr-black);
}

.btn-dark:hover,
.btn-dark:focus {
    background-color: #000000;
    border-color: #000000;
}

.stat-card {
    border: 1px solid var(--vr-border);
    border-radius: 1.1rem;
    background: linear-gradient(180deg, #ffffff 0%, #fbfbfb 100%);
}

.admin-shell {
    min-height: 100vh;
}

.admin-layout {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.admin-main {
    flex: 1 1 auto;
    min-width: 0;
}

.admin-sidebar {
    width: min(100%, 290px);
    flex: 0 0 auto;
}

.admin-sidebar-panel {
    padding: 1.5rem 1.25rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 1.75rem;
    background:
        radial-gradient(circle at top left, rgba(255, 255, 255, 0.08), transparent 24%),
        linear-gradient(180deg, #131927 0%, #171f2f 100%);
    box-shadow: 0 22px 60px rgba(9, 12, 18, 0.28);
}

.admin-content-panel,
.admin-surface {
    border: 1px solid var(--vr-border);
    border-radius: 1.5rem;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 20px 48px rgba(17, 17, 17, 0.06);
}

.admin-eyebrow {
    color: var(--vr-gray);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.admin-sidebar-brand {
    display: flex;
    align-items: center;
    gap: 0.95rem;
}

.admin-brand-mark {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.22rem;
    width: 3rem;
    height: 3rem;
    padding: 0.72rem;
    border-radius: 1rem;
    background: linear-gradient(180deg, #ffffff 0%, #d9d9d9 100%);
    box-shadow: 0 12px 28px rgba(255, 255, 255, 0.12);
}

.admin-brand-mark span {
    border-radius: 0.22rem;
    background: #111111;
}

.admin-sidebar-label {
    color: rgba(255, 255, 255, 0.48);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.admin-sidebar-subtitle {
    color: rgba(255, 255, 255, 0.64);
    font-size: 0.95rem;
}

.admin-sidebar-group {
    margin-bottom: 1.75rem;
}

.admin-nav-link {
    display: flex;
    align-items: center;
    gap: 0.9rem;
    padding: 0.95rem 1rem;
    border: 1px solid transparent;
    border-radius: 999px;
    color: rgba(255, 255, 255, 0.82);
    text-decoration: none;
    transition: all 0.2s ease;
}

.admin-nav-link:hover {
    border-color: rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.05);
    color: var(--vr-white);
}

.admin-nav-link.is-active {
    border-color: rgba(255, 255, 255, 0.45);
    background: linear-gradient(180deg, #ffffff 0%, #ececec 100%);
    color: var(--vr-black);
    box-shadow: 0 10px 28px rgba(255, 255, 255, 0.16);
}

.admin-nav-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.15rem;
    height: 1.15rem;
    flex-shrink: 0;
}

.admin-nav-icon svg {
    width: 100%;
    height: 100%;
    stroke: currentColor;
    fill: none;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.admin-nav-link.is-active .admin-nav-icon svg:first-child rect,
.admin-nav-link.is-active .admin-nav-icon svg:first-child path:first-child {
    fill: var(--vr-black);
    stroke: var(--vr-black);
}

.admin-nav-link .admin-nav-icon svg rect,
.admin-nav-link .admin-nav-icon svg ellipse {
    fill: currentColor;
    stroke: currentColor;
}

.admin-nav-link .admin-nav-icon svg path {
    fill: none;
}

.admin-user-card {
    padding: 1.15rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 1.35rem;
    background: rgba(255, 255, 255, 0.06);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.03);
}

.admin-sidebar-footer {
    padding: 1rem 1rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.admin-kpi-label {
    color: var(--vr-gray);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.admin-kpi-value {
    font-size: 2.2rem;
    font-weight: 700;
    line-height: 1;
}

.admin-kpi-card {
    position: relative;
    overflow: hidden;
}

.admin-kpi-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.9rem;
    height: 2.9rem;
    margin-bottom: 1rem;
    border: 1px solid rgba(17, 17, 17, 0.08);
    border-radius: 1rem;
    background: linear-gradient(180deg, #ffffff 0%, #f2f2f2 100%);
    color: var(--vr-black);
    font-size: 1.2rem;
    box-shadow: 0 12px 24px rgba(17, 17, 17, 0.06);
}

.admin-content-panel .nav-pills .nav-link {
    color: var(--vr-black);
}

.admin-content-panel .nav-pills .nav-link:hover,
.admin-content-panel .nav-pills .nav-link:focus {
    color: var(--vr-black);
}

.admin-content-panel .nav-pills .nav-link.disabled,
.admin-content-panel .nav-pills .nav-link:disabled {
    color: var(--vr-gray);
}

.admin-list-item {
    padding: 1rem 0;
    border-bottom: 1px solid rgba(17, 17, 17, 0.08);
}

.admin-list-item:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.admin-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.8rem;
    border: 1px solid var(--vr-border);
    border-radius: 999px;
    background: var(--vr-white);
    color: var(--vr-black);
    font-size: 0.85rem;
    text-decoration: none;
}

.admin-hero {
    background:
        linear-gradient(135deg, rgba(17, 17, 17, 0.05), rgba(255, 255, 255, 0.9)),
        #ffffff;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
}

.table thead th {
    color: var(--vr-gray);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

.question-card-title {
    font-size: 1.02rem;
    line-height: 1.35;
}

.question-card-header {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 14rem;
    gap: 0.75rem;
    align-items: start;
}

.question-card-copy {
    min-width: 0;
}

.question-card-actions {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.5rem;
    width: 14rem;
    min-width: 14rem;
}

.question-card-actions .btn,
.question-card-actions form,
.question-card-actions a {
    width: 100%;
    min-width: 0;
}

.question-card-actions .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    white-space: nowrap;
    font-size: 0.78rem;
    padding: 0.45rem 0.65rem;
}

.question-card-actions .btn .bi {
    margin-right: 0.25rem !important;
}

.question-card-actions form {
    margin: 0;
    min-width: 0;
}

@media (max-width: 991.98px) {
    .brand-copy {
        text-align: center;
    }

    .brand-divider {
        margin-inline: auto;
    }

    .admin-sidebar {
        position: static;
        width: 100%;
    }

    .question-card-header {
        grid-template-columns: minmax(0, 1fr) 12rem;
    }

    .question-card-actions {
        width: 12rem;
        min-width: 12rem;
    }

    .question-card-actions .btn {
        font-size: 0.72rem;
        padding: 0.4rem 0.45rem;
    }
}

@media (min-width: 992px) {
    .admin-layout {
        flex-direction: row;
        align-items: flex-start;
    }

    .admin-sidebar {
        position: sticky;
        top: 1rem;
        min-height: calc(100vh - 2rem);
        width: 290px;
    }

    .admin-sidebar-panel {
        min-height: calc(100vh - 2rem);
    }
}