.jc-app {
    --jc-bg: #0f172a;
    --jc-panel: #ffffff;
    --jc-muted-panel: #f8fafc;
    --jc-border: #d9e2ef;
    --jc-text: #172033;
    --jc-muted: #5b6678;
    --jc-accent: #234d8f;
    --jc-accent-strong: #17396d;
    --jc-danger: #b42318;
    --jc-radius: 18px;
    --jc-shadow: 0 18px 50px rgba(15, 23, 42, 0.12);
    box-sizing: border-box;
    width: min(1180px, 100%);
    margin: 24px auto;
    padding: clamp(14px, 2vw, 28px);
    color: var(--jc-text);
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.5;
}

.jc-app *,
.jc-app *::before,
.jc-app *::after {
    box-sizing: border-box;
}

.jc-hero,
.jc-converter,
.jc-map-section,
.jc-form,
.jc-panel,
.jc-message {
    background: var(--jc-panel);
    border: 1px solid var(--jc-border);
    border-radius: var(--jc-radius);
    box-shadow: var(--jc-shadow);
}

.jc-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 22px;
    align-items: center;
    padding: clamp(20px, 3vw, 34px);
    background: linear-gradient(135deg, #101b33 0%, #234d8f 100%);
    color: #ffffff;
}

.jc-kicker {
    margin: 0 0 6px;
    color: rgba(255,255,255,0.76);
    font-size: 0.86rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.jc-hero h2 {
    margin: 0;
    color: #ffffff;
    font-size: clamp(1.6rem, 4vw, 3rem);
    line-height: 1.08;
}

.jc-hero p {
    margin: 10px 0 0;
    color: rgba(255,255,255,0.82);
}

.jc-stat-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(92px, 1fr));
    gap: 12px;
}

.jc-stat {
    min-width: 92px;
    padding: 15px;
    border-radius: 14px;
    background: rgba(255,255,255,0.13);
    border: 1px solid rgba(255,255,255,0.24);
    text-align: center;
}

.jc-stat span {
    display: block;
    color: #ffffff;
    font-size: 1.3rem;
    font-weight: 800;
}

.jc-stat small {
    display: block;
    margin-top: 3px;
    color: rgba(255,255,255,0.76);
    font-size: 0.78rem;
}

.jc-converter,
.jc-map-section,
.jc-form,
.jc-panel {
    margin-top: 18px;
    padding: clamp(16px, 2vw, 24px);
}

.jc-section-title,
.jc-panel h3 {
    margin: 0 0 14px;
    color: var(--jc-text);
    font-size: 1.12rem;
    font-weight: 800;
}

.jc-field-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.jc-field-grid-compact {
    grid-template-columns: repeat(2, minmax(220px, 1fr));
}

.jc-form label,
.jc-converter label {
    display: grid;
    gap: 7px;
    margin: 0;
    color: var(--jc-text);
    font-weight: 700;
}

.jc-form label span,
.jc-converter label span {
    font-size: 0.9rem;
}

.jc-form select,
.jc-form input,
.jc-converter input {
    width: 100%;
    min-height: 46px;
    border: 1px solid var(--jc-border);
    border-radius: 12px;
    background: #ffffff;
    color: var(--jc-text);
    padding: 10px 12px;
    font: inherit;
}

.jc-form select:focus,
.jc-form input:focus,
.jc-converter input:focus {
    outline: 3px solid rgba(35, 77, 143, 0.18);
    border-color: var(--jc-accent);
}

.jc-inline-result {
    display: block;
    padding: 10px 12px;
    border-radius: 12px;
    background: #eef4ff;
    color: var(--jc-accent-strong);
    font-weight: 700;
}

.jc-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.jc-actions button,
.jc-secondary,
.jc-constellation-sector {
    border: 0;
    border-radius: 12px;
    cursor: pointer;
    font: inherit;
    font-weight: 800;
}

.jc-actions button,
.jc-secondary {
    min-height: 44px;
    padding: 10px 16px;
}

.jc-actions button {
    background: var(--jc-accent);
    color: #ffffff;
}

.jc-actions button:hover,
.jc-secondary:hover {
    filter: brightness(0.96);
}

.jc-actions button:focus-visible,
.jc-secondary:focus-visible,
.jc-constellation-sector:focus-visible {
    outline: 3px solid rgba(35, 77, 143, 0.28);
    outline-offset: 2px;
}

.jc-actions .jc-secondary,
.jc-secondary {
    background: #eaf0f8;
    color: var(--jc-accent-strong);
}

.jc-map-section {
    overflow: hidden;
}

.jc-constellation-map {
    position: relative;
    width: min(560px, 88vw);
    height: min(560px, 88vw);
    min-height: 330px;
    margin: 4px auto 0;
    border-radius: 50%;
    background: radial-gradient(circle, #ffffff 0%, #f4f7fb 42%, #dfe8f6 100%);
    border: 1px solid var(--jc-border);
}

.jc-map-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 140px;
    height: 140px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: #ffffff;
    border: 1px solid var(--jc-border);
    color: var(--jc-text);
    font-weight: 800;
    box-shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
}

.jc-constellation-sector {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 92px;
    min-height: 34px;
    padding: 6px 8px;
    background: #ffffff;
    color: var(--jc-accent-strong);
    border: 1px solid var(--jc-border);
    box-shadow: 0 6px 14px rgba(15, 23, 42, 0.08);
    font-size: clamp(0.62rem, 1.7vw, 0.82rem);
    line-height: 1.15;
    transform: translate(-50%, -50%) rotate(calc(360deg / var(--sector-count) * var(--sector-index))) translate(min(222px, 34vw)) rotate(calc(-360deg / var(--sector-count) * var(--sector-index)));
}

.jc-constellation-sector:hover {
    background: #eef4ff;
}

.jc-message {
    margin-top: 18px;
    padding: 14px 16px;
    color: var(--jc-danger);
    background: #fff4f2;
    border-color: #ffd8d2;
    font-weight: 800;
}

.jc-results {
    margin-top: 18px;
}

.jc-card-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.jc-card {
    background: var(--jc-panel);
    border: 1px solid var(--jc-border);
    border-radius: var(--jc-radius);
    box-shadow: 0 10px 28px rgba(15, 23, 42, 0.08);
    padding: 18px;
    transition: transform 0.16s ease, box-shadow 0.16s ease;
}

.jc-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 36px rgba(15, 23, 42, 0.12);
}

.jc-card h3 {
    margin: 0 0 14px;
    color: var(--jc-text);
    font-size: 1.2rem;
    line-height: 1.25;
}

.jc-card dl {
    display: grid;
    gap: 10px;
    margin: 0;
}

.jc-card dl div {
    display: grid;
    grid-template-columns: 160px minmax(0, 1fr);
    gap: 10px;
    padding-top: 10px;
    border-top: 1px solid #edf1f7;
}

.jc-card dt {
    color: var(--jc-muted);
    font-weight: 800;
}

.jc-card dd {
    margin: 0;
    min-width: 0;
    overflow-wrap: anywhere;
}

.jc-badge {
    display: inline-block;
    border-radius: 999px;
    padding: 4px 10px;
    background: #edf1f7;
    color: var(--jc-muted);
    font-weight: 800;
    font-size: 0.82rem;
}

.jc-badge-alert {
    background: #fff0ef;
    color: var(--jc-danger);
}

.jc-panel-heading {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
}

.jc-muted {
    color: var(--jc-muted);
    margin-top: -6px;
}

.jc-test-bars {
    display: flex;
    align-items: end;
    gap: 8px;
    min-height: 82px;
    margin: 12px 0 18px;
    padding: 12px;
    border: 1px solid var(--jc-border);
    border-radius: 14px;
    background: var(--jc-muted-panel);
    overflow-x: auto;
}

.jc-test-bar {
    display: grid;
    align-content: end;
    justify-items: center;
    gap: 4px;
    min-width: 42px;
    color: var(--jc-muted);
    font-size: 0.72rem;
}

.jc-test-bar span {
    display: block;
    width: 18px;
    min-height: 4px;
    border-radius: 999px 999px 0 0;
    background: var(--jc-accent);
}

.jc-table-wrap {
    width: 100%;
    overflow-x: auto;
}

.jc-table {
    width: 100%;
    border-collapse: collapse;
    background: #ffffff;
    border: 1px solid var(--jc-border);
    border-radius: 14px;
    overflow: hidden;
}

.jc-table th,
.jc-table td {
    padding: 12px;
    border-bottom: 1px solid var(--jc-border);
    text-align: left;
    vertical-align: top;
}

.jc-table th {
    background: #f3f6fb;
    color: var(--jc-text);
    font-weight: 800;
}

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

.jc-empty {
    margin: 0;
    padding: 16px;
    border-radius: var(--jc-radius);
    background: #ffffff;
    border: 1px solid var(--jc-border);
}

@media (max-width: 900px) {
    .jc-hero {
        grid-template-columns: 1fr;
    }

    .jc-stat-grid,
    .jc-card-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    .jc-app {
        margin: 10px auto;
        padding: 10px;
    }

    .jc-field-grid,
    .jc-field-grid-compact {
        grid-template-columns: 1fr;
    }

    .jc-actions {
        display: grid;
        grid-template-columns: 1fr;
    }

    .jc-card dl div {
        grid-template-columns: 1fr;
        gap: 3px;
    }

    .jc-constellation-map {
        width: min(430px, 92vw);
        height: min(430px, 92vw);
    }

    .jc-map-center {
        width: 104px;
        height: 104px;
        font-size: 0.86rem;
    }

    .jc-constellation-sector {
        width: 76px;
        transform: translate(-50%, -50%) rotate(calc(360deg / var(--sector-count) * var(--sector-index))) translate(min(168px, 34vw)) rotate(calc(-360deg / var(--sector-count) * var(--sector-index)));
    }
}

@media (max-width: 540px) {
    .jc-table,
    .jc-table thead,
    .jc-table tbody,
    .jc-table tr,
    .jc-table th,
    .jc-table td {
        display: block;
    }

    .jc-table thead {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(0 0 0 0);
    }

    .jc-table tr {
        padding: 10px 12px;
        border-bottom: 1px solid var(--jc-border);
    }

    .jc-table td {
        display: grid;
        grid-template-columns: 130px minmax(0, 1fr);
        gap: 10px;
        padding: 7px 0;
        border-bottom: 0;
    }

    .jc-table td::before {
        content: attr(data-label);
        color: var(--jc-muted);
        font-weight: 800;
    }
}