.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    min-height: 42px;
    padding: 0.7rem 1.05rem;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    font-weight: 800;
    line-height: 1;
    white-space: nowrap;
    transition:
        background var(--transition-fast),
        color var(--transition-fast),
        border-color var(--transition-fast),
        transform var(--transition-fast),
        box-shadow var(--transition-fast);
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    color: #ffffff;
    background: var(--color-primary-600);
    border-color: var(--color-primary-600);
}

.btn-primary:hover {
    background: var(--color-primary-700);
    border-color: var(--color-primary-700);
    box-shadow: 0 8px 20px rgba(23, 86, 169, 0.18);
}

.btn-accent {
    color: var(--color-primary-950);
    background: var(--color-accent-500);
    border-color: var(--color-accent-500);
}

.btn-accent:hover {
    background: var(--color-accent-400);
    border-color: var(--color-accent-400);
    box-shadow: 0 8px 22px rgba(255, 191, 33, 0.22);
}

.btn-light {
    color: var(--color-primary-950);
    background: #ffffff;
    border-color: #ffffff;
}

.btn-light:hover {
    background: #f3f6fa;
    border-color: #f3f6fa;
}

.btn-outline {
    color: inherit;
    background: transparent;
    border-color: var(--color-border-strong);
}

.site-header .btn-outline,
.dashboard-sidebar .btn-outline {
    border-color: rgba(255, 255, 255, 0.28);
}

.site-header .btn-outline:hover,
.dashboard-sidebar .btn-outline:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.45);
}

.btn-sm {
    min-height: 34px;
    padding: 0.5rem 0.75rem;
    font-size: 0.78rem;
}

.card,
.panel-card,
.stat-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow-xs);
}

.card {
    padding: 1.4rem;
    border-radius: var(--radius-md);
}

.panel-card {
    padding: 1.3rem;
    border-radius: var(--radius-md);
}

.panel-card h3 {
    margin-bottom: 1rem;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 1rem;
}

.stat-card {
    position: relative;
    overflow: hidden;
    min-height: 118px;
    padding: 1.15rem 1.2rem;
    border-radius: var(--radius-md);
}

.stat-card::after {
    content: "";
    position: absolute;
    width: 80px;
    height: 80px;
    right: -30px;
    bottom: -30px;
    border-radius: 50%;
    background: rgba(38, 114, 216, 0.05);
}

.stat-card span {
    position: relative;
    z-index: 1;
    display: block;
    margin-bottom: 0.45rem;
    font-size: 0.8rem;
    font-weight: 700;
}

.stat-card strong {
    position: relative;
    z-index: 1;
    display: block;
    color: var(--color-text-strong);
    font-size: 1.65rem;
    line-height: 1.1;
    letter-spacing: -0.035em;
}

.badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.3rem;
    min-height: 24px;
    padding: 0.25rem 0.6rem;
    color: var(--color-primary-600);
    background: var(--color-info-soft);
    border-radius: var(--radius-pill);
    font-size: 0.7rem;
    font-weight: 850;
    line-height: 1;
}

.badge-success {
    color: var(--color-success);
    background: var(--color-success-soft);
}

.badge-warning {
    color: var(--color-warning);
    background: var(--color-warning-soft);
}

.badge-danger {
    color: var(--color-danger);
    background: var(--color-danger-soft);
}

.avatar {
    width: 46px;
    height: 46px;
    flex: 0 0 46px;
    display: grid;
    place-items: center;
    overflow: hidden;
    color: var(--color-primary-700);
    background:
        linear-gradient(
            135deg,
            #edf4ff 0%,
            #dce9fb 100%
        );
    border: 1px solid #d8e2ef;
    border-radius: 50%;
    font-weight: 900;
}

.progress {
    width: 100%;
    height: 8px;
    overflow: hidden;
    background: var(--color-surface-muted);
    border-radius: var(--radius-pill);
}

.progress > span {
    display: block;
    width: 0;
    height: 100%;
    background:
        linear-gradient(
            90deg,
            var(--color-primary-500),
            var(--color-success)
        );
    border-radius: inherit;
    transition: width 400ms ease;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
}

.data-table th,
.data-table td {
    padding: 0.85rem 0.95rem;
    border-bottom: 1px solid var(--color-border);
    text-align: left;
    vertical-align: middle;
    font-size: 0.84rem;
}

.data-table th {
    color: var(--color-muted);
    background: #fafbfd;
    font-size: 0.72rem;
    font-weight: 850;
    letter-spacing: 0.055em;
    text-transform: uppercase;
}

.data-table tr:last-child td {
    border-bottom: 0;
}

.flash,
.alert {
    margin-bottom: 1rem;
    padding: 0.85rem 1rem;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 0.86rem;
    font-weight: 650;
}

.flash-success,
.alert-success {
    color: #11673e;
    background: var(--color-success-soft);
    border-color: #ccebdc;
}

.flash-error,
.alert-error {
    color: #a32d2d;
    background: var(--color-danger-soft);
    border-color: #f4cccc;
}

.empty {
    padding: 2.5rem 1rem;
    color: var(--color-muted);
    text-align: center;
}

.list-clean {
    margin: 0;
    padding: 0;
    list-style: none;
}

.list-clean li {
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--color-border);
}

.list-clean li:last-child {
    border-bottom: 0;
}

.kpi-strip {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    overflow: hidden;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.kpi-strip > div {
    min-width: 0;
    padding: 1.15rem 1rem;
    text-align: center;
    border-right: 1px solid var(--color-border);
}

.kpi-strip > div:last-child {
    border-right: 0;
}

.kpi-strip strong {
    display: block;
    margin-bottom: 0.28rem;
    color: var(--color-primary-700);
    font-size: clamp(1.55rem, 2.2vw, 1.9rem);
    font-weight: 900;
    line-height: 1;
    letter-spacing: -0.04em;
}

.kpi-strip span {
    display: block;
    color: var(--color-muted);
    font-size: 0.76rem;
    font-weight: 700;
    line-height: 1.4;
}

.avatar img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar.avatar-hidden {
    font-size: 0.65rem;
}