.ev4x-pc-lab,
.ev4x-pc-lab * {
    box-sizing: border-box;
}

.ev4x-pc-lab {
    position: relative;
    isolation: isolate;
    max-width: 1320px;
    margin: 24px auto;
    padding: 24px;
    border-radius: 28px;
    overflow: hidden;
    color: #eef7ff;
    background:
        radial-gradient(circle at top left, rgba(54, 190, 255, .28), transparent 34%),
        radial-gradient(circle at 70% 20%, rgba(245, 194, 92, .18), transparent 28%),
        linear-gradient(135deg, #071225 0%, #0b1f3d 48%, #06111f 100%);
    box-shadow: 0 24px 70px rgba(0, 0, 0, .28);
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.ev4x-pc-bg {
    position: absolute;
    inset: 0;
    z-index: -1;
    opacity: .55;
    background-image:
        radial-gradient(circle, rgba(255, 255, 255, .8) 1px, transparent 1.8px),
        radial-gradient(circle, rgba(255, 255, 255, .35) 1px, transparent 1.8px);
    background-size: 48px 48px, 82px 82px;
    background-position: 0 0, 24px 18px;
}

.ev4x-pc-hero {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 18px;
    margin-bottom: 22px;
}

.ev4x-pc-kicker {
    display: inline-flex;
    margin: 0 0 8px;
    padding: 7px 12px;
    border: 1px solid rgba(255, 255, 255, .18);
    border-radius: 999px;
    color: #bdefff;
    background: rgba(255, 255, 255, .07);
    font-size: 13px;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.ev4x-pc-hero h1 {
    margin: 0;
    color: #ffffff;
    font-size: clamp(30px, 4vw, 48px);
    line-height: 1.04;
}

.ev4x-pc-lead {
    max-width: 760px;
    margin: 10px 0 0;
    color: rgba(238, 247, 255, .82);
    font-size: 18px;
}

.ev4x-pc-badge {
    min-width: 116px;
    padding: 14px 16px;
    text-align: center;
    border: 1px solid rgba(245, 194, 92, .42);
    border-radius: 22px;
    background: rgba(245, 194, 92, .12);
    box-shadow: inset 0 0 24px rgba(245, 194, 92, .10);
}

.ev4x-pc-badge span {
    display: block;
    color: #f7e2aa;
    font-size: 13px;
}

.ev4x-pc-badge strong {
    display: block;
    color: #fff;
    font-size: 30px;
}

.ev4x-pc-task {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(280px, .8fr);
    gap: 18px;
    margin-bottom: 22px;
    padding: 18px;
    border: 1px solid rgba(255, 255, 255, .14);
    border-radius: 24px;
    background: rgba(255, 255, 255, .08);
    backdrop-filter: blur(10px);
}

.ev4x-pc-task h2,
.ev4x-pc-toolbar h2,
.ev4x-pc-panel h2,
.ev4x-pc-help h3,
.ev4x-pc-category h3 {
    margin: 0;
    color: #fff;
}

.ev4x-pc-task p,
.ev4x-pc-toolbar p,
.ev4x-pc-help p {
    margin: 8px 0 0;
    color: rgba(238, 247, 255, .78);
}

.ev4x-pc-task-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
}

.ev4x-pc-task-grid span {
    padding: 10px 12px;
    border-radius: 14px;
    color: #dbfbff;
    background: rgba(21, 180, 140, .16);
    border: 1px solid rgba(95, 235, 202, .24);
    font-size: 14px;
}

.ev4x-pc-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 360px;
    gap: 22px;
    align-items: start;
}

.ev4x-pc-main,
.ev4x-pc-panel-card,
.ev4x-pc-result,
.ev4x-pc-help {
    border: 1px solid rgba(255, 255, 255, .13);
    background: rgba(255, 255, 255, .075);
    border-radius: 24px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, .18);
    backdrop-filter: blur(12px);
}

.ev4x-pc-main {
    padding: 18px;
}

.ev4x-pc-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 18px;
}

.ev4x-pc-toolbar-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: flex-end;
}

.ev4x-pc-btn {
    appearance: none;
    border: 0;
    border-radius: 999px;
    padding: 11px 16px;
    cursor: pointer;
    font-weight: 800;
    line-height: 1;
    transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
}

.ev4x-pc-btn:hover,
.ev4x-pc-card:hover {
    transform: translateY(-2px);
}

.ev4x-pc-btn-primary {
    width: 100%;
    padding: 14px 18px;
    color: #06111f;
    background: linear-gradient(135deg, #69f4d6, #f6d06c);
    box-shadow: 0 12px 26px rgba(105, 244, 214, .22);
}

.ev4x-pc-btn-soft {
    color: #06111f;
    background: #bdefff;
}

.ev4x-pc-btn-ghost {
    color: #f2fbff;
    background: rgba(255, 255, 255, .10);
    border: 1px solid rgba(255, 255, 255, .18);
}

.ev4x-pc-components {
    display: grid;
    gap: 18px;
}

.ev4x-pc-category {
    padding: 16px;
    border-radius: 22px;
    background: rgba(4, 16, 32, .46);
    border: 1px solid rgba(255, 255, 255, .10);
}

.ev4x-pc-category-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 12px;
}

.ev4x-pc-category h3 {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 20px;
}

.ev4x-pc-category small {
    color: rgba(238, 247, 255, .62);
}

.ev4x-pc-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 12px;
}

.ev4x-pc-card {
    min-height: 178px;
    display: flex;
    flex-direction: column;
    gap: 9px;
    width: 100%;
    padding: 14px;
    text-align: left;
    color: #ecf8ff;
    border: 1px solid rgba(255, 255, 255, .13);
    border-radius: 18px;
    background: rgba(255, 255, 255, .075);
    cursor: pointer;
    transition: transform .18s ease, border-color .18s ease, background .18s ease, box-shadow .18s ease;
}

.ev4x-pc-card.is-selected {
    border-color: rgba(245, 194, 92, .95);
    background: rgba(245, 194, 92, .16);
    box-shadow: 0 0 0 3px rgba(245, 194, 92, .12), 0 18px 32px rgba(0, 0, 0, .18);
}

.ev4x-pc-card-title {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    font-weight: 850;
    color: #fff;
}

.ev4x-pc-price {
    white-space: nowrap;
    color: #f7df9d;
}

.ev4x-pc-specs {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.ev4x-pc-chip {
    display: inline-flex;
    align-items: center;
    min-height: 24px;
    padding: 3px 8px;
    border-radius: 999px;
    color: #d9f9ff;
    background: rgba(57, 192, 255, .13);
    border: 1px solid rgba(57, 192, 255, .20);
    font-size: 12px;
}

.ev4x-pc-note {
    margin: auto 0 0;
    color: rgba(238, 247, 255, .70);
    font-size: 13px;
    line-height: 1.38;
}

.ev4x-pc-panel {
    position: sticky;
    top: 20px;
    display: grid;
    gap: 14px;
}

.ev4x-pc-panel-card,
.ev4x-pc-result,
.ev4x-pc-help {
    padding: 18px;
}

.ev4x-pc-summary {
    display: grid;
    gap: 8px;
    margin: 14px 0;
}

.ev4x-pc-summary-row {
    display: grid;
    grid-template-columns: 115px 1fr;
    gap: 10px;
    padding: 10px;
    border-radius: 14px;
    background: rgba(0, 0, 0, .16);
}

.ev4x-pc-summary-row span:first-child {
    color: rgba(238, 247, 255, .62);
    font-size: 13px;
}

.ev4x-pc-summary-row strong {
    color: #fff;
    font-size: 14px;
}

.ev4x-pc-total {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 10px;
    margin: 14px 0;
}

.ev4x-pc-total > div {
    padding: 12px;
    border-radius: 16px;
    background: rgba(255, 255, 255, .08);
}

.ev4x-pc-total span {
    display: block;
    color: rgba(238, 247, 255, .62);
    font-size: 13px;
}

.ev4x-pc-total strong {
    display: block;
    margin-top: 2px;
    color: #fff;
    font-size: 20px;
}

.ev4x-pc-result:empty {
    display: none;
}

.ev4x-pc-result h3 {
    margin: 0 0 10px;
    color: #fff;
}

.ev4x-pc-score-box {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-bottom: 12px;
}

.ev4x-pc-score-box > div {
    padding: 12px;
    border-radius: 16px;
    background: rgba(255, 255, 255, .08);
}

.ev4x-pc-score-box span {
    display: block;
    color: rgba(238, 247, 255, .66);
    font-size: 13px;
}

.ev4x-pc-score-box strong {
    display: block;
    color: #fff;
    font-size: 28px;
}

.ev4x-pc-message-list {
    display: grid;
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.ev4x-pc-message-list li {
    padding: 10px 12px;
    border-radius: 14px;
    line-height: 1.35;
}

.ev4x-pc-message-error {
    color: #ffe8e8;
    background: rgba(255, 70, 70, .16);
    border: 1px solid rgba(255, 116, 116, .24);
}

.ev4x-pc-message-warning {
    color: #fff4d8;
    background: rgba(245, 194, 92, .16);
    border: 1px solid rgba(245, 194, 92, .28);
}

.ev4x-pc-message-success {
    color: #dcfff7;
    background: rgba(61, 220, 168, .14);
    border: 1px solid rgba(97, 238, 202, .24);
}

.ev4x-pc-final-note {
    margin: 12px 0 0;
    color: rgba(238, 247, 255, .82);
    line-height: 1.45;
}

@media (max-width: 1040px) {
    .ev4x-pc-layout,
    .ev4x-pc-task {
        grid-template-columns: 1fr;
    }

    .ev4x-pc-panel {
        position: static;
    }
}

@media (max-width: 680px) {
    .ev4x-pc-lab {
        padding: 16px;
        border-radius: 20px;
    }

    .ev4x-pc-hero,
    .ev4x-pc-toolbar {
        flex-direction: column;
    }

    .ev4x-pc-task-grid,
    .ev4x-pc-total,
    .ev4x-pc-score-box {
        grid-template-columns: 1fr;
    }

    .ev4x-pc-card-grid {
        grid-template-columns: 1fr;
    }
}