/* Buttons, forms, cards, tables, alerts, empty states, skeletons. */

.btn {
    border-radius: var(--lf-radius-md) !important;
    box-shadow: none !important;
    font-weight: 600;
    letter-spacing: -0.01em;
    transition: background-color var(--lf-motion) var(--lf-ease),
                border-color var(--lf-motion) var(--lf-ease),
                color var(--lf-motion) var(--lf-ease),
                opacity var(--lf-motion) var(--lf-ease);
}

.btn-icon,
.btn-sm.btn-icon {
    width: 2rem;
    height: 2rem;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.shadow,
.shadow-sm,
.shadow-lg {
    box-shadow: none !important;
}

a:not(.btn):not(.nav-link):not(.dropdown-item):not(.page-link):not(.lf-brand):not(.navbar-brand) {
    color: var(--lf-ink);
    text-underline-offset: 0.15em;
}

a:not(.btn):not(.nav-link):not(.dropdown-item):not(.page-link):not(.lf-brand):hover {
    color: var(--lf-ink);
}

.text-primary:not(.btn) {
    color: var(--lf-ink) !important;
}

.bg-white {
    background-color: var(--lf-surface) !important;
}

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

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--lf-signal-hover);
    border-color: var(--lf-signal-hover);
    color: #fff;
}

.btn-outline-primary {
    color: var(--lf-signal);
    border-color: var(--lf-line-strong);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--lf-signal-wash);
    border-color: var(--lf-signal);
    color: var(--lf-signal-hover);
}

.btn-outline-secondary,
.btn-light {
    background: var(--lf-surface);
    border-color: var(--lf-line-strong);
    color: var(--lf-ink);
}

.btn-light:hover,
.btn-outline-secondary:hover {
    background: var(--lf-wash);
    color: var(--lf-ink);
    border-color: var(--lf-line-strong);
}

.btn.is-busy {
    pointer-events: none;
    opacity: 0.7;
}

.form-label {
    font-weight: 600;
    color: var(--lf-ink);
    font-size: 0.8125rem;
    letter-spacing: -0.01em;
}

.form-control,
.form-select {
    border-radius: var(--lf-radius-md);
    border-color: var(--lf-line-strong);
    background: var(--lf-surface);
    color: var(--lf-ink);
    padding: 0.55rem 0.75rem;
    box-shadow: none;
}

.form-control::placeholder {
    color: var(--lf-muted);
    opacity: 0.75;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--lf-signal);
    box-shadow: 0 0 0 3px var(--lf-signal-wash);
    background: var(--lf-surface);
}

.form-control[aria-invalid="true"] {
    border-color: var(--lf-danger);
}

.form-hint,
.field-error {
    font-size: var(--lf-text-xs);
    margin-top: var(--lf-space-1);
}

.field-error {
    color: var(--lf-danger);
}

.form-hint {
    color: var(--lf-muted);
}

.card {
    border: 1px solid var(--lf-line);
    box-shadow: none !important;
    border-radius: var(--lf-radius-lg) !important;
    background: var(--lf-surface);
}

.card-hoverable {
    transition: border-color var(--lf-motion) var(--lf-ease);
}

.card-hoverable:hover {
    transform: none;
    box-shadow: none;
    border-color: var(--lf-line-strong);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--lf-line);
    padding: 0.95rem 1.15rem;
}

.card-body {
    padding: 1.15rem 1.2rem;
}

.card-title {
    font-weight: 600;
    letter-spacing: -0.025em;
    color: var(--lf-ink);
}

.card-table thead th {
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--lf-muted);
    background: transparent;
    border-bottom: 1px solid var(--lf-line);
    padding: 0.65rem 1rem;
}

.card-table tbody td {
    padding: 0.7rem 1rem;
    vertical-align: middle;
    border-color: var(--lf-line);
}

.table-hover > tbody > tr:hover > * {
    background: var(--lf-wash);
}

@media (max-width: 767.98px) {
    .table-stack thead {
        display: none;
    }

    .table-stack tbody tr {
        display: block;
        padding: var(--lf-space-3) 0;
        border-bottom: 1px solid var(--lf-line);
    }

    .table-stack tbody td {
        display: flex;
        justify-content: space-between;
        gap: var(--lf-space-3);
        padding: 0.35rem 1rem;
    }

    .table-stack tbody td::before {
        content: attr(data-label);
        font-weight: 600;
        color: var(--lf-muted);
        flex: 0 0 40%;
    }

    .table-stack tbody td.col-optional {
        display: none;
    }

    .table-stack tbody td.table-actions {
        justify-content: flex-start;
        padding-top: 0.65rem;
    }

    .table-stack tbody td.table-actions::before {
        display: none;
    }
}

.alert-premium {
    border: 1px solid var(--lf-line);
    border-left: 3px solid var(--lf-signal);
    border-radius: var(--lf-radius-md);
    box-shadow: none;
    background: var(--lf-surface);
}

.alert-premium.alert-danger {
    background: var(--lf-danger-wash);
    border-left-color: var(--lf-danger);
    color: #7a160f;
}

.alert-premium.alert-success {
    background: var(--lf-positive-wash);
    border-left-color: var(--lf-positive);
    color: #1d4632;
}

.alert-premium.alert-warning {
    background: var(--lf-warning-wash);
    border-left-color: var(--lf-warning);
    color: #5c430c;
}

.alert-premium.alert-info {
    background: var(--lf-wash);
    border-left-color: var(--lf-ink);
    color: var(--lf-ink-soft);
}

.empty-state {
    padding: 2.75rem 1.5rem;
    text-align: center;
}

.empty-state-icon {
    font-size: 1.5rem !important;
    color: var(--lf-muted) !important;
    margin-bottom: 0.85rem;
    display: inline-flex;
    padding: 0.5rem !important;
    background: var(--lf-wash) !important;
    border-radius: var(--lf-radius-md) !important;
    line-height: 1;
}

.empty-state-title {
    font-weight: 600;
    font-size: 1.05rem;
    letter-spacing: -0.02em;
    margin-bottom: 0.4rem;
    color: var(--lf-ink);
}

.empty-state-description {
    color: var(--lf-muted);
    max-width: 28rem;
    margin: 0 auto 1.25rem;
}

.skeleton {
    display: block;
    background: var(--lf-wash);
    border-radius: var(--lf-radius-sm);
    min-height: 1rem;
    position: relative;
    overflow: hidden;
}

.skeleton::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, transparent, rgba(251, 250, 246, 0.7), transparent);
    animation: lf-shimmer 1.4s var(--lf-ease) infinite;
}

.skeleton-chart {
    height: 160px;
}

.skeleton-chart-lg {
    height: min(18rem, 58vw);
}

@keyframes lf-shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

@media (prefers-reduced-motion: reduce) {
    .skeleton::after {
        animation: none;
    }
}

.badge {
    font-weight: 600;
    border-radius: var(--lf-radius-sm) !important;
    letter-spacing: 0.02em;
}

.avatar,
.avatar.rounded-circle {
    border-radius: var(--lf-radius-md) !important;
}

.badge.bg-green-lt,
.badge.bg-emerald-lt {
    background: var(--lf-positive-wash) !important;
    color: var(--lf-positive) !important;
}

.badge.bg-red-lt {
    background: var(--lf-danger-wash) !important;
    color: var(--lf-danger) !important;
}

.badge.bg-warning-lt,
.badge.bg-amber-lt {
    background: var(--lf-warning-wash) !important;
    color: var(--lf-warning) !important;
}

.badge.bg-cyan-lt,
.badge.bg-blue-lt,
.badge.bg-purple-lt {
    background: var(--lf-wash) !important;
    color: var(--lf-ink) !important;
}

.copy-btn {
    cursor: pointer;
}

.copy-btn.is-copied {
    color: var(--lf-positive);
    border-color: var(--lf-positive);
}

.pagination .page-link {
    border-radius: var(--lf-radius-sm) !important;
    color: var(--lf-ink);
}

.pagination .page-item.active .page-link {
    background: var(--lf-ink);
    border-color: var(--lf-ink);
    color: #fbfaf6;
}

.lf-pagination {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--lf-space-3);
    margin-top: var(--lf-space-5);
    padding: var(--lf-space-3) 0;
    background: transparent;
    border: 0;
    border-radius: 0;
    box-shadow: none;
}

.status-429 {
    background-color: var(--lf-danger-wash) !important;
}

.status-2xx {
    background-color: var(--lf-positive-wash) !important;
}

.lf-disclosure {
    border-top: 1px solid var(--lf-line);
    padding-top: 0.85rem;
    margin-top: 0.25rem;
}

.lf-disclosure summary {
    cursor: pointer;
    font-weight: 600;
    font-size: 0.875rem;
    color: var(--lf-ink-soft);
    list-style: none;
}

.lf-disclosure summary::-webkit-details-marker {
    display: none;
}

.lf-disclosure summary::after {
    content: "+";
    float: right;
    color: var(--lf-muted);
    font-weight: 500;
}

.lf-disclosure[open] summary::after {
    content: "–";
}

.segmented-control {
    background: var(--lf-wash);
    padding: 3px;
    border-radius: var(--lf-radius-md);
    display: inline-flex;
    border: 1px solid var(--lf-line);
}

.segmented-control .btn-segmented,
.btn-trend-range {
    border: none !important;
    background: transparent !important;
    color: var(--lf-ink-soft) !important;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.3rem 0.75rem;
    border-radius: 3px;
    cursor: pointer;
    letter-spacing: 0.04em;
}

.segmented-control .btn-segmented.active,
.btn-trend-range.btn-primary,
.btn-trend-range.active {
    background: var(--lf-surface) !important;
    color: var(--lf-ink) !important;
    box-shadow: none !important;
}

@media (max-width: 767.98px) {
    .col-optional {
        display: none !important;
    }
}