:root {
    --admin-bg: #eef2f5;
    --admin-surface: #ffffff;
    --admin-primary: #0f2a4a;
    --admin-text: #1d2733;
    --admin-muted: #5f6b7a;
    --admin-border: #d8e0e7;
}

body {
    font-family: 'Source Sans 3', sans-serif;
    background: var(--admin-bg);
    color: var(--admin-text);
    margin: 0;
}

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

.admin-sidebar {
    background: #111f2f;
    min-height: 100vh;
    color: #e4ebf3;
    padding: 0.85rem 0.7rem;
    border-right: 1px solid #24384f;
}

.admin-sidebar .brand {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 0.9rem;
    letter-spacing: 0.02em;
}

.admin-sidebar .nav-link {
    color: #d8e1eb;
    border: 1px solid transparent;
    font-weight: 600;
    margin-bottom: 0.28rem;
    padding: 0.48rem 0.62rem;
    text-decoration: none;
}

.admin-sidebar .nav-link:hover,
.admin-sidebar .nav-link.active {
    background: #162d46;
    border-color: #2f4c6b;
    color: #fff;
}

.admin-main {
    padding: 0.85rem 1rem;
}

.top-head {
    background: var(--admin-surface);
    border: 1px solid var(--admin-border);
    padding: 0.62rem 0.85rem;
    margin-bottom: 0.7rem;
}

.admin-sidebar-toggle {
    display: none;
    width: 34px;
    height: 32px;
    margin-right: 0.55rem;
    border: 1px solid #b7c4d2;
    background: #fff;
    color: #1f3348;
    font-size: 1.05rem;
    line-height: 1;
}

.panel-card {
    background: var(--admin-surface);
    border: 1px solid var(--admin-border);
    margin-bottom: 0.65rem;
}

.panel-card .card-header {
    background: #f8fafc;
    border-bottom: 1px solid var(--admin-border);
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.panel-card .card-body {
    padding: 0.8rem;
}

.table td,
.table th {
    vertical-align: middle;
    font-size: 0.92rem;
}

.form-label {
    font-weight: 600;
    font-size: 0.88rem;
    margin-bottom: 0.28rem;
}

.btn-admin {
    background: var(--admin-primary);
    border-color: var(--admin-primary);
    color: #fff;
    border-radius: 0;
    font-weight: 600;
    font-size: 0.84rem;
}

.btn-admin:hover {
    background: #0b2139;
    border-color: #0b2139;
    color: #fff;
}

.login-wrapper {
    min-height: 100vh;
    display: grid;
    place-items: center;
    background: linear-gradient(180deg, #f4f6f9, #e9eef3);
}

.login-box {
    width: min(410px, 94vw);
    background: #fff;
    border: 1px solid var(--admin-border);
    padding: 1.1rem;
    box-shadow: 0 8px 20px rgba(13, 28, 47, 0.06);
}

.login-brand {
    display: grid;
    grid-template-columns: 56px 1fr;
    gap: 0.7rem;
    align-items: center;
    margin-bottom: 0.85rem;
    padding-bottom: 0.7rem;
    border-bottom: 1px solid #dde5ee;
}

.login-insignia {
    width: 56px;
    height: 56px;
    border: 1px solid #b8c7d7;
    background: #f4f7fa;
    display: grid;
    place-items: center;
    color: #17314f;
    font-size: 1.6rem;
}

.login-insignia img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.login-title {
    margin: 0;
    font-size: 1.08rem;
    font-weight: 700;
    color: #1b2f46;
    text-transform: uppercase;
    letter-spacing: 0.02em;
}

.login-subtitle {
    margin: 0.15rem 0 0;
    color: #5b6b7d;
    font-size: 0.82rem;
}

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

.form-control,
.form-select,
textarea.form-control,
input[type="color"].form-control,
.form-control-color {
    width: 100%;
    border: 1px solid #b7c4d2 !important;
    background: #fff;
    border-radius: 0 !important;
    color: #17212d;
    padding: 0.48rem 0.62rem !important;
    font-size: 0.88rem;
    line-height: 1.35;
    box-shadow: none !important;
}

textarea.form-control {
    min-height: 90px;
}

.form-control:focus,
.form-select:focus,
textarea.form-control:focus {
    border-color: #33557a !important;
    outline: none;
    box-shadow: 0 0 0 2px rgba(51, 85, 122, 0.12) !important;
}

input[type="file"].form-control {
    padding: 0.26rem 0.38rem !important;
}

.form-check {
    min-height: auto;
    margin-bottom: 0;
}

.form-check-input {
    border-radius: 0 !important;
    border-color: #9bb0c5;
}

.form-check-input:checked {
    background-color: var(--admin-primary);
    border-color: var(--admin-primary);
}

.row.g-2 {
    --bs-gutter-x: 0.8rem;
    --bs-gutter-y: 0.8rem;
}

.row.g-3 {
    --bs-gutter-x: 0.95rem;
    --bs-gutter-y: 0.95rem;
}

.btn {
    border-radius: 0 !important;
    font-size: 0.82rem;
    font-weight: 600;
    padding: 0.34rem 0.58rem;
}

.btn-outline-primary {
    color: #1b3d63;
    border-color: #8ea5be;
}

.btn-outline-danger {
    color: #8a2830;
    border-color: #d1a1a6;
}

.table {
    margin-bottom: 0;
    border-collapse: collapse;
}

.table > :not(caption) > * > * {
    padding: 0.52rem 0.56rem;
    border-bottom: 1px solid #d5dee8;
}

.table thead th {
    text-transform: uppercase;
    letter-spacing: 0.02em;
    font-size: 0.74rem;
    background: #f5f8fb;
    color: #2b3c4f;
}

.table td {
    font-size: 0.84rem;
}

.alert {
    border-radius: 0;
    border: 1px solid transparent;
    padding: 0.42rem 0.58rem;
    font-size: 0.85rem;
}

.alert-success {
    background: #edf7ef;
    border-color: #bddbc5;
    color: #1a5b2b;
}

.alert-danger {
    background: #fbeff0;
    border-color: #e3bdc1;
    color: #7c2631;
}

@media (max-width: 991px) {
    .admin-sidebar {
        min-height: 100vh;
        position: fixed;
        left: 0;
        top: 0;
        bottom: 0;
        width: min(290px, 84vw);
        z-index: 1200;
        transform: translateX(-100%);
        transition: transform 0.2s ease;
        box-shadow: 8px 0 24px rgba(12, 23, 36, 0.25);
    }

    .admin-sidebar.is-open {
        transform: translateX(0);
    }

    .admin-main {
        width: 100%;
        padding: 0.65rem 0.65rem 0.9rem;
    }

    .admin-sidebar-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .top-head {
        padding: 0.56rem 0.62rem;
    }

    .top-head > div:first-child {
        display: flex;
        align-items: center;
    }

    .panel-card .card-body {
        padding: 0.62rem;
    }

    .panel-card .card-body.p-0 {
        overflow-x: auto;
    }

    .table {
        min-width: 760px;
    }

    .btn {
        min-height: 34px;
    }
}