:root {
    --ui-focus: #9dc2ff;
    --ui-surface: rgba(255, 255, 255, .035);
    --ui-surface-strong: rgba(255, 255, 255, .07);
    --ui-info: #93c5fd;
    --ui-success: #86efac;
    --ui-warning: #fde68a;
    --ui-danger: #fda4af;
}

:focus-visible {
    outline: 3px solid var(--ui-focus);
    outline-offset: 3px;
}

.ui-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.ui-page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 18px;
    flex-wrap: wrap;
    padding: clamp(18px, 3vw, 28px);
    margin: 0 0 16px;
    border: 1px solid var(--line2);
    border-radius: 18px;
    background: linear-gradient(135deg, rgba(65, 105, 225, .20), rgba(139, 92, 246, .10));
    box-shadow: var(--shadow);
}

.ui-page-header h1 {
    margin: 0;
    font-size: clamp(24px, 3vw, 32px);
    line-height: 1.15;
}

.ui-page-header__description,
.ui-section__header p,
.ui-empty-state p {
    max-width: 76ch;
    margin: 8px 0 0;
    color: var(--muted);
}

.ui-action-group {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}

.ui-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    border: 1px solid transparent;
    border-radius: 10px;
    padding: 8px 12px;
    font: inherit;
    font-weight: 650;
    line-height: 1.2;
    text-decoration: none;
    cursor: pointer;
    transition: border-color .12s ease, background-color .12s ease, transform .12s ease;
}

.ui-button:hover {
    text-decoration: none;
    transform: translateY(-1px);
}

.ui-button--primary {
    color: #07111f;
    background: linear-gradient(180deg, #9dc2ff, #76a9ff);
    border-color: #a9c9ff;
}

.ui-button--secondary {
    color: var(--text);
    background: linear-gradient(180deg, #2c4270, #23365e);
    border-color: var(--line2);
}

.ui-button--danger {
    color: #fff1f2;
    background: rgba(190, 24, 93, .35);
    border-color: rgba(253, 164, 175, .65);
}

.ui-button--quiet {
    color: var(--blue);
    background: transparent;
    border-color: transparent;
}

.ui-button--sm {
    min-height: 34px;
    padding: 6px 10px;
    font-size: 13px;
}

.ui-button[aria-disabled="true"],
.ui-button:disabled {
    opacity: .55;
    cursor: not-allowed;
    transform: none;
}

.ui-alert {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 12px;
    align-items: start;
    margin: 0 0 16px;
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 14px;
    background: var(--ui-surface);
}

.ui-alert__icon {
    display: grid;
    place-items: center;
    width: 24px;
    height: 24px;
    border: 1px solid currentColor;
    border-radius: 50%;
    font-weight: 800;
}

.ui-alert__title {
    display: block;
    margin: 0 0 2px;
}

.ui-alert__message {
    color: var(--muted);
}

.ui-alert--info { border-color: rgba(147, 197, 253, .65); color: var(--ui-info); }
.ui-alert--success { border-color: rgba(134, 239, 172, .65); color: var(--ui-success); }
.ui-alert--warning { border-color: rgba(253, 230, 138, .70); color: var(--ui-warning); }
.ui-alert--danger { border-color: rgba(253, 164, 175, .70); color: var(--ui-danger); }

.ui-icon-button {
    display: inline-grid;
    place-items: center;
    width: 32px;
    height: 32px;
    margin: -4px -4px 0 0;
    padding: 0;
    border: 0;
    border-radius: 8px;
    color: inherit;
    background: transparent;
    font-size: 22px;
    line-height: 1;
}

.ui-icon-button:hover { background: rgba(255, 255, 255, .10); }

.ui-empty-state {
    display: grid;
    justify-items: center;
    max-width: 620px;
    margin: 0 auto;
    padding: clamp(24px, 5vw, 52px) 18px;
    text-align: center;
}

.ui-empty-state__icon {
    display: grid;
    place-items: center;
    width: 48px;
    height: 48px;
    margin-bottom: 12px;
    border: 1px solid var(--line2);
    border-radius: 16px;
    color: var(--blue);
    background: rgba(118, 169, 255, .10);
    font-size: 24px;
}

.ui-empty-state h2 {
    margin: 0;
    font-size: 20px;
}

.ui-empty-state__action { margin-top: 16px; }

.ui-loading {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    min-height: 48px;
    color: var(--muted);
}

.ui-loading--compact { min-height: 32px; font-size: 13px; }

.ui-spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(157, 194, 255, .26);
    border-top-color: var(--ui-focus);
    border-radius: 50%;
    animation: ui-spin .75s linear infinite;
}

.ui-badge {
    display: inline-flex;
    align-items: center;
    min-height: 22px;
    padding: 2px 8px;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: rgba(255, 255, 255, .05);
    font-size: 12px;
    font-weight: 700;
    line-height: 1.2;
}

.ui-badge--info { border-color: rgba(147, 197, 253, .7); color: var(--ui-info); }
.ui-badge--success { border-color: rgba(134, 239, 172, .7); color: var(--ui-success); }
.ui-badge--warning { border-color: rgba(253, 230, 138, .75); color: var(--ui-warning); }
.ui-badge--danger { border-color: rgba(253, 164, 175, .75); color: var(--ui-danger); }

.ui-section {
    margin: 0 0 16px;
    border: 1px solid var(--line);
    border-radius: 18px;
    background: linear-gradient(180deg, rgba(255, 255, 255, .045), rgba(255, 255, 255, .025));
    box-shadow: var(--shadow);
}

.ui-section__header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
    flex-wrap: wrap;
    padding: 16px 18px;
    border-bottom: 1px solid var(--line);
}

.ui-section__header h2 {
    margin: 0;
    font-size: 18px;
}

.ui-section__header p { font-size: 13px; }
.ui-section__body { padding: 18px; }

.ui-table-region {
    width: 100%;
    overflow-x: auto;
    overscroll-behavior-x: contain;
    border: 1px solid var(--line);
    border-radius: 12px;
}

.ui-table-region > table { min-width: 640px; }

.ui-table--skeleton { border-collapse: collapse; }
.ui-table--skeleton th,
.ui-table--skeleton td { min-width: 130px; }

.ui-skeleton {
    display: block;
    width: min(100%, 180px);
    height: 14px;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(255, 255, 255, .05), rgba(157, 194, 255, .18), rgba(255, 255, 255, .05));
    background-size: 200% 100%;
    animation: ui-shimmer 1.25s ease-in-out infinite;
}

[data-ui-loading-form][aria-busy="true"] {
    position: relative;
    pointer-events: none;
    opacity: .72;
}

[data-ui-loading-form][aria-busy="true"] [data-ui-loading-indicator] { display: inline-flex; }
[data-ui-loading-indicator] { display: none; }

@keyframes ui-spin { to { transform: rotate(360deg); } }
@keyframes ui-shimmer { to { background-position: -200% 0; } }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        scroll-behavior: auto !important;
        transition-duration: .01ms !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
    }
}

@media (max-width: 640px) {
    main { padding: 14px; }
    .ui-page-header { padding: 18px; }
    .ui-page-header__content, .ui-action-group { width: 100%; }
    .ui-action-group > .ui-button { flex: 1 1 auto; }
    .ui-section__body { padding: 14px; }
    .ui-alert { grid-template-columns: auto minmax(0, 1fr) auto; }
}