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

.simcalculo-imc-app {
    --imc-ink: var(--simcalculo-text);
    --imc-muted: var(--simcalculo-muted);
    --imc-primary: var(--simcalculo-primary);
    --imc-primary-dark: var(--simcalculo-primary-dark);
    --imc-accent: var(--simcalculo-accent);
    --imc-border: var(--simcalculo-border);
    --imc-surface: var(--simcalculo-surface);
    --imc-soft: var(--simcalculo-surface-soft);
    --imc-shadow: var(--simcalculo-shadow);
    width: 100%;
    max-width: 920px;
    margin: 2rem auto;
    color: var(--imc-ink);
    font-family: inherit;
    line-height: 1.5;
}

.simcalculo-imc-card {
    width: 100%;
    overflow: hidden;
    background: var(--imc-surface);
    border: 1px solid var(--imc-border);
    border-radius: 24px;
    box-shadow: var(--imc-shadow);
}

.simcalculo-imc-header {
    padding: clamp(1.5rem, 4vw, 3rem);
    color: #fff;
    background: linear-gradient(135deg, #173b86 0%, #2563eb 58%, #0ea5a0 100%);
}

.simcalculo-imc-header h1 {
    margin: .35rem 0 .65rem;
    color: inherit;
    font-size: clamp(1.75rem, 4vw, 2.65rem);
    line-height: 1.1;
}

.simcalculo-imc-header p {
    max-width: 650px;
    margin: 0;
    color: rgba(255, 255, 255, .86);
    font-size: 1rem;
}

.simcalculo-imc-eyebrow,
.simcalculo-imc-label {
    display: block;
    color: var(--imc-muted);
    font-size: .74rem;
    font-weight: 800;
    letter-spacing: .09em;
    text-transform: uppercase;
}

.simcalculo-imc-eyebrow { color: rgba(255, 255, 255, .72); }

.simcalculo-imc-mode-tabs {
    display: flex;
    gap: .5rem;
    padding: 1rem clamp(1rem, 3vw, 2rem) 0;
    border-bottom: 1px solid var(--imc-border);
    background: var(--imc-surface);
}

.simcalculo-imc-mode-tabs button {
    appearance: none;
    border: 0;
    border-bottom: 3px solid transparent;
    padding: .75rem .9rem;
    color: var(--imc-muted);
    background: transparent;
    cursor: pointer;
    font: inherit;
    font-weight: 700;
}

.simcalculo-imc-mode-tabs button:hover,
.simcalculo-imc-mode-tabs button:focus-visible { color: var(--imc-primary); }

.simcalculo-imc-mode-tabs button[aria-selected="true"] {
    color: var(--imc-primary);
    border-bottom-color: var(--imc-primary);
}

.simcalculo-imc-card > [role="tabpanel"] {
    padding: clamp(1.25rem, 3vw, 2rem);
}

.simcalculo-imc-form { margin: 0; }

.simcalculo-imc-fields {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.simcalculo-imc-field { min-width: 0; }

.simcalculo-imc-field label {
    display: block;
    margin-bottom: .42rem;
    color: var(--imc-ink);
    font-size: .9rem;
    font-weight: 700;
}

.simcalculo-imc-field label span { color: var(--imc-muted); font-weight: 500; }

.simcalculo-imc-field input,
.simcalculo-imc-field select {
    display: block;
    width: 100%;
    min-height: 46px;
    margin: 0;
    padding: .7rem .8rem;
    border: 1px solid #cbd5e1;
    border-radius: 10px;
    color: var(--imc-ink);
    background: #fff;
    font: inherit;
    line-height: 1.3;
}

.simcalculo-imc-field input:focus,
.simcalculo-imc-field select:focus,
.simcalculo-imc-simulator input:focus {
    outline: 3px solid rgba(37, 99, 235, .18);
    border-color: var(--imc-primary);
}

.simcalculo-imc-submit {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: .55rem;
    width: 100%;
    min-height: 48px;
    margin-top: 1.25rem;
    padding: .75rem 1rem;
    border: 0;
    border-radius: 10px;
    color: #fff;
    background: var(--imc-primary);
    cursor: pointer;
    font: inherit;
    font-weight: 800;
    transition: background .2s ease, transform .2s ease;
}

.simcalculo-imc-submit:hover { background: var(--imc-primary-dark); transform: translateY(-1px); }
.simcalculo-imc-submit,
.simcalculo-imc-link-button { text-decoration: none !important; }
.simcalculo-imc-submit:focus-visible,
.simcalculo-imc-link-button:focus-visible { outline: 3px solid rgba(37, 99, 235, .3); outline-offset: 2px; }

.simcalculo-imc-error {
    margin: 1rem 0 0;
    padding: .75rem .9rem;
    border: 1px solid #fecaca;
    border-radius: 8px;
    color: #991b1b;
    background: #fef2f2;
}

.simcalculo-imc-result {
    margin: 0 clamp(1.25rem, 3vw, 2rem) 2rem;
    padding: clamp(1.15rem, 3vw, 1.75rem);
    border: 1px solid #bfdbfe;
    border-radius: 16px;
    background: linear-gradient(180deg, #eff6ff 0%, #fff 100%);
}

.simcalculo-imc-result-top,
.simcalculo-imc-sim-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.simcalculo-imc-value { margin-top: .3rem; }
.simcalculo-imc-value strong { color: var(--imc-primary-dark); font-size: clamp(2rem, 6vw, 3.2rem); line-height: 1; }
.simcalculo-imc-value span { color: var(--imc-muted); font-size: .9rem; }
.simcalculo-imc-classification { margin: .45rem 0 0; font-size: 1.05rem; font-weight: 800; }

.simcalculo-imc-badge {
    flex: 0 0 auto;
    padding: .45rem .7rem;
    border-radius: 999px;
    color: #075985;
    background: #dff7f3;
    font-size: .8rem;
    font-weight: 800;
}

.simcalculo-imc-cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .75rem; margin-top: 1.25rem; }
.simcalculo-imc-mini-card { padding: .9rem; border: 1px solid var(--imc-border); border-radius: 10px; background: #fff; }
.simcalculo-imc-mini-card span { display: block; color: var(--imc-muted); font-size: .82rem; }
.simcalculo-imc-mini-card strong { display: block; margin-top: .25rem; font-size: 1rem; }
.simcalculo-imc-explanation { margin: 1.25rem 0; color: #344054; }

.simcalculo-imc-details { border-top: 1px solid var(--imc-border); padding-top: 1rem; color: var(--imc-muted); }
.simcalculo-imc-details summary { cursor: pointer; color: var(--imc-ink); font-weight: 700; }
.simcalculo-imc-details p { margin-bottom: 0; }

.simcalculo-imc-simulator { margin-top: 1.25rem; padding: 1rem; border: 1px solid var(--imc-border); border-radius: 12px; background: var(--imc-soft); }
.simcalculo-imc-simulator h2 { color: var(--imc-ink); }
.simcalculo-imc-sim-head strong { color: var(--imc-primary-dark); font-size: 1.35rem; }
.simcalculo-imc-simulator input[type="range"] { display: block; width: 100%; margin: 1rem 0 .35rem; accent-color: var(--imc-primary); }
.simcalculo-imc-range-labels { display: flex; justify-content: space-between; gap: .5rem; color: var(--imc-muted); font-size: .78rem; }
.simcalculo-imc-range-labels span:nth-child(2) { color: var(--imc-primary-dark); font-weight: 700; }

.simcalculo-imc-actions { display: flex; flex-wrap: wrap; gap: .85rem 1.25rem; margin-top: 1.25rem; }
.simcalculo-imc-link-button { padding: 0; border: 0; color: var(--imc-primary-dark); background: transparent; cursor: pointer; font: inherit; font-size: .9rem; font-weight: 700; text-decoration: underline; }
.simcalculo-imc-disclaimer,
.simcalculo-imc-source { margin: 0 clamp(1.25rem, 3vw, 2rem) 1rem; color: var(--imc-muted); font-size: .82rem; }
.simcalculo-imc-source { margin-top: 0; }
.simcalculo-imc-source a { color: var(--imc-primary-dark); }

@media (max-width: 600px) {
    .simcalculo-imc-app { margin: 1rem auto; }
    .simcalculo-imc-card { border-radius: 16px; }
    .simcalculo-imc-mode-tabs { overflow-x: auto; }
    .simcalculo-imc-mode-tabs button { flex: 0 0 auto; white-space: nowrap; }
    .simcalculo-imc-fields,
    .simcalculo-imc-cards { grid-template-columns: 1fr; }
    .simcalculo-imc-result-top { flex-direction: column; }
    .simcalculo-imc-badge { align-self: flex-start; }
}