.wcc-app {
    --wcc-bg: #f6f8fb;
    --wcc-panel: #ffffff;
    --wcc-ink: #17202a;
    --wcc-muted: #667085;
    --wcc-border: #d9e1ea;
    --wcc-blue: #2563eb;
    --wcc-green: #138a5b;
    --wcc-amber: #b7791f;
    --wcc-red: #c2410c;
    --wcc-shadow: 0 18px 45px rgba(18, 32, 53, 0.12);
    background: var(--wcc-bg);
    color: var(--wcc-ink);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    padding: 32px 16px;
}

.wcc-app * {
    box-sizing: border-box;
}

.wcc-shell {
    max-width: 1120px;
    margin: 0 auto;
}

.wcc-header {
    display: flex;
    justify-content: space-between;
    align-items: end;
    gap: 20px;
    margin-bottom: 18px;
}

.wcc-kicker {
    color: var(--wcc-blue);
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0;
    margin: 0 0 6px;
    text-transform: uppercase;
}

.wcc-header h1,
.wcc-panel-head h3 {
    color: var(--wcc-ink);
    line-height: 1.15;
    margin: 0;
}

.wcc-header h1 {
    font-size: 32px;
}

.wcc-intro {
    color: var(--wcc-muted);
    font-size: 15px;
    line-height: 1.55;
    margin: 10px 0 0;
    max-width: 720px;
}

.wcc-live-result,
.wcc-bmi-box,
.wcc-result-grid > div,
.wcc-stat-strip > div {
    background: #eef4ff;
    border: 1px solid #c8dcff;
    border-radius: 8px;
    min-width: 148px;
    padding: 12px 14px;
}

.wcc-live-result span,
.wcc-bmi-box span,
.wcc-result-grid span,
.wcc-stat-strip span {
    display: block;
    color: var(--wcc-ink);
    font-size: 22px;
    font-weight: 800;
    line-height: 1.15;
}

.wcc-live-result small,
.wcc-bmi-box small,
.wcc-result-grid small,
.wcc-stat-strip small {
    color: var(--wcc-muted);
    display: block;
    font-size: 12px;
    line-height: 1.3;
    margin-top: 5px;
}

.wcc-grid {
    display: grid;
    gap: 18px;
    grid-template-columns: minmax(300px, 0.9fr) minmax(360px, 1.4fr);
}

.wcc-panel {
    background: var(--wcc-panel);
    border: 1px solid var(--wcc-border);
    border-radius: 8px;
    box-shadow: var(--wcc-shadow);
    padding: 20px;
}

.wcc-controls,
.wcc-goal {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.wcc-panel-head {
    align-items: center;
    display: flex;
    gap: 12px;
    justify-content: space-between;
}

.wcc-panel-head h3 {
    font-size: 20px;
}

.wcc-panel-head span {
    color: var(--wcc-muted);
    font-size: 13px;
    text-align: right;
}

.wcc-field {
    display: flex;
    flex-direction: column;
    gap: 7px;
}

.wcc-field label {
    color: #344054;
    font-size: 13px;
    font-weight: 700;
}

.wcc-inline {
    display: grid;
    gap: 8px;
    grid-template-columns: minmax(0, 1fr) 130px;
}

.wcc-height-row {
    grid-template-columns: minmax(0, 1fr) 0 130px;
}

.wcc-height-row[data-mode="ft"] {
    grid-template-columns: minmax(0, 1fr) minmax(72px, 0.65fr) 130px;
}

.wcc-inch-input {
    opacity: 0;
    pointer-events: none;
    position: relative;
    width: 0;
}

.wcc-height-row[data-mode="ft"] .wcc-inch-input {
    opacity: 1;
    pointer-events: auto;
    width: 100%;
}

.wcc-field input,
.wcc-field select {
    appearance: none;
    background: #ffffff;
    border: 1px solid var(--wcc-border);
    border-radius: 8px;
    color: var(--wcc-ink);
    font: inherit;
    min-height: 46px;
    padding: 10px 12px;
    width: 100%;
}

.wcc-height-help {
    color: var(--wcc-muted);
    font-size: 12px;
    line-height: 1.35;
}

.wcc-field input:focus,
.wcc-field select:focus {
    border-color: var(--wcc-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
    outline: 0;
}

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

.wcc-result-grid > div {
    background: #f8fafc;
    border-color: var(--wcc-border);
    min-width: 0;
}

.wcc-copy-button {
    align-items: center;
    background: var(--wcc-blue);
    border: 0;
    border-radius: 8px;
    color: #ffffff;
    cursor: pointer;
    display: inline-flex;
    font: inherit;
    font-weight: 700;
    justify-content: center;
    min-height: 44px;
    padding: 10px 14px;
    transition: background-color 0.2s ease, transform 0.2s ease;
    width: 100%;
}

.wcc-copy-button:hover {
    background: #1d4ed8;
}

.wcc-copy-button:active {
    transform: translateY(1px);
}

.wcc-copy-status {
    color: var(--wcc-green);
    font-size: 13px;
    font-weight: 700;
    min-height: 18px;
    margin: -10px 0 0;
}

.wcc-two-col,
.wcc-stat-strip {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.wcc-bmi-box {
    align-self: end;
    min-height: 74px;
}

.wcc-bmi-box[data-state="under"] {
    background: #fff7ed;
    border-color: #fed7aa;
}

.wcc-bmi-box[data-state="normal"] {
    background: #ecfdf3;
    border-color: #abefc6;
}

.wcc-bmi-box[data-state="over"],
.wcc-bmi-box[data-state="obese"] {
    background: #fff1f0;
    border-color: #ffc9c2;
}

.wcc-chart-wrap {
    background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
    border: 1px solid var(--wcc-border);
    border-radius: 8px;
    min-height: 270px;
    padding: 12px;
}

.wcc-chart-wrap canvas {
    display: block;
    height: 100%;
    max-height: 320px;
    width: 100%;
}

.wcc-stat-strip {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.wcc-stat-strip > div {
    background: #f8fafc;
    border-color: var(--wcc-border);
    min-width: 0;
}

.wcc-note {
    background: #fffbeb;
    border: 1px solid #fde68a;
    border-radius: 8px;
    color: #7c4a03;
    font-size: 13px;
    line-height: 1.45;
    margin: 0;
    padding: 10px 12px;
}

.wcc-info-grid {
    display: grid;
    gap: 18px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    margin-top: 18px;
}

.wcc-info-panel {
    background: #ffffff;
    border: 1px solid var(--wcc-border);
    border-radius: 8px;
    padding: 20px;
}

.wcc-info-wide {
    grid-column: 1 / -1;
}

.wcc-info-panel h3 {
    color: var(--wcc-ink);
    font-size: 20px;
    line-height: 1.2;
    margin: 0 0 12px;
}

.wcc-info-panel ul,
.wcc-info-panel ol {
    color: #344054;
    line-height: 1.7;
    margin: 0;
    padding-left: 20px;
}

.wcc-info-panel .wcc-example-list {
    list-style: none;
    padding-left: 0;
}

.wcc-example-list li {
    background: #f8fafc;
    border: 1px solid var(--wcc-border);
    border-radius: 8px;
    margin-bottom: 8px;
    padding: 9px 10px;
}

.wcc-example-list li:last-child {
    margin-bottom: 0;
}

.wcc-table-wrap {
    border: 1px solid var(--wcc-border);
    border-radius: 8px;
    overflow-x: auto;
}

.wcc-info-panel table {
    border-collapse: collapse;
    color: #344054;
    font-size: 14px;
    min-width: 420px;
    width: 100%;
}

.wcc-info-panel th,
.wcc-info-panel td {
    border-bottom: 1px solid var(--wcc-border);
    padding: 10px 12px;
    text-align: left;
}

.wcc-info-panel th {
    background: #eef4ff;
    color: var(--wcc-ink);
    font-weight: 800;
}

.wcc-info-panel tr:last-child td {
    border-bottom: 0;
}

.wcc-info-panel details {
    border-top: 1px solid var(--wcc-border);
    padding: 11px 0;
}

.wcc-info-panel details:first-of-type {
    border-top: 0;
    padding-top: 0;
}

.wcc-info-panel details:last-child {
    padding-bottom: 0;
}

.wcc-info-panel summary {
    color: var(--wcc-ink);
    cursor: pointer;
    font-weight: 800;
}

.wcc-info-panel p {
    color: var(--wcc-muted);
    line-height: 1.55;
    margin: 8px 0 0;
}

.wcc-tool-grid {
    grid-template-columns: minmax(300px, 0.8fr) minmax(360px, 1.2fr);
}

.wcc-tool-fields {
    display: grid;
    gap: 14px;
}

.wcc-suffix-field {
    align-items: stretch;
    display: grid;
    gap: 8px;
    grid-template-columns: minmax(0, 1fr) auto;
}

.wcc-suffix-field span {
    align-items: center;
    background: #f8fafc;
    border: 1px solid var(--wcc-border);
    border-radius: 8px;
    color: var(--wcc-muted);
    display: inline-flex;
    font-size: 13px;
    font-weight: 700;
    justify-content: center;
    min-height: 46px;
    min-width: 82px;
    padding: 0 10px;
}

.wcc-tool-results {
    margin-top: 16px;
}

.wcc-tool-results > div {
    background: #f8fafc;
    border-color: var(--wcc-border);
}

.wcc-tool-plan {
    margin-top: 18px;
}

.wcc-tool-plan h3 {
    color: var(--wcc-ink);
    font-size: 18px;
    margin: 0 0 10px;
}

.wcc-tool-plan ul {
    display: grid;
    gap: 8px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.wcc-tool-plan li {
    background: #f8fafc;
    border: 1px solid var(--wcc-border);
    border-radius: 8px;
    color: #344054;
    line-height: 1.45;
    padding: 10px 12px;
}

.wcc-related-tools,
.wcc-tool-list {
    display: grid;
    gap: 10px;
}

.wcc-related-tools {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.wcc-related-tools a,
.wcc-tool-card {
    background: #f8fafc;
    border: 1px solid var(--wcc-border);
    border-radius: 8px;
    color: var(--wcc-ink);
    display: block;
    font-weight: 800;
    line-height: 1.35;
    padding: 12px;
    text-decoration: none;
}

.wcc-related-tools a:hover,
.wcc-tool-card:hover {
    border-color: var(--wcc-blue);
    color: var(--wcc-blue);
}

.wcc-tool-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.wcc-tool-card {
    min-height: 150px;
}

.wcc-tool-card span,
.wcc-tool-card small {
    display: block;
}

.wcc-tool-card span {
    color: var(--wcc-blue);
    font-size: 12px;
    font-weight: 800;
    margin-bottom: 8px;
    text-transform: uppercase;
}

.wcc-tool-card strong {
    display: block;
    font-size: 18px;
    margin-bottom: 8px;
}

.wcc-tool-card small {
    color: var(--wcc-muted);
    font-size: 13px;
    font-weight: 500;
}

@media (max-width: 860px) {
    .wcc-header,
    .wcc-panel-head {
        align-items: stretch;
        flex-direction: column;
    }

    .wcc-panel-head span {
        text-align: left;
    }

    .wcc-grid {
        grid-template-columns: 1fr;
    }

    .wcc-info-grid,
    .wcc-related-tools,
    .wcc-tool-list {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .wcc-app {
        padding: 20px 10px;
    }

    .wcc-header h1 {
        font-size: 25px;
    }

    .wcc-panel {
        padding: 14px;
    }

    .wcc-inline,
    .wcc-height-row,
    .wcc-height-row[data-mode="ft"],
    .wcc-two-col,
    .wcc-stat-strip,
    .wcc-result-grid,
    .wcc-suffix-field {
        grid-template-columns: 1fr;
    }

    .wcc-inch-input {
        display: none;
    }

    .wcc-height-row[data-mode="ft"] .wcc-inch-input {
        display: block;
    }

    .wcc-chart-wrap {
        min-height: 230px;
    }
}