.calculator .calculator-shell {
    --calculator-field-tint: #EDF8F8;
    --stage-i-bg: #046CB4;
    --stage-ii-bg: #3DA43D;
    --stage-iii-bg: #F28E17;
    --stage-iv-bg: #D61617;
    --calculator-result-dark: #394648;
    box-sizing: border-box;
    max-width: 760px;
    min-height: 0;
    margin: 0 auto;
    padding: 1.5rem 1rem;
}
.calculator [hidden] { display: none !important; }
.calculator h2 { font-size: clamp(1.3rem, 3vw, 1.8rem); padding: 0; margin: 1.25rem 0; line-height: 1.35; overflow-wrap: anywhere; }
.calculator .calculator-shell a { color: var(--primary-color); text-decoration: underline; }
.calculator .calculator-access {
    width: 100%;
    max-width: 600px;
    margin-inline: auto;
    text-align: center;
}
.calculator .calculator-status {
    box-sizing: border-box;
    width: 100%;
    max-width: 600px;
    margin-inline: auto;
    padding: 1rem;
    text-align: center;
}
.calculator .calculator-status p {
    margin-bottom: 1rem;
    text-align: center;
}
.calculator .calculator-access .btn {
    background: var(--highlight-color);
    border-color: var(--highlight-color);
    color: var(--bg-color);
}
.calculator .calculator-access .btn:hover {
    background: var(--bg-color);
    border-color: var(--primary-color);
    color: var(--primary-color);
}
.calculator .calculator-access .btn.btn-disabled,
.calculator .calculator-access .btn.btn-disabled:hover {
    background: #c5c5c5;
    border-color: #c5c5c5;
    color: var(--bg-color);
    cursor: default;
}
.calculator #navLogo { display: block; }
.calculator #navLogo img { max-width: 100%; height: auto; }
.calculator nav ul.menu li:not(.menu-calculator) > a { display: block; color: inherit; }
.calculator .choices, .calculator .actions { display: flex; flex-wrap: wrap; gap: .75rem; }
.calculator .choices { flex-direction: column; }
.calculator #calculator-form, .calculator .choices { width: 100%; max-width: 600px; margin-inline: auto; }
.calculator .calculator-heading {
    width: 100%;
    max-width: 600px;
    margin: 0 auto clamp(1rem, 3vw, 1.5rem);
    text-align: center;
}
.calculator .calculator-eyebrow {
    margin: 0 0 .35rem;
    padding: 0;
    color: var(--primary-color);
    font-size: clamp(.75rem, 2vw, .9rem);
    font-weight: bold;
    line-height: 1.3;
    letter-spacing: .12em;
    text-align: center;
    text-transform: uppercase;
}
.calculator #calculator-title {
    margin: 0;
    padding: 0;
    color: var(--secondary-color);
    font-size: clamp(1.75rem, 5vw, 2.65rem);
    font-weight: bold;
    line-height: 1.12;
    overflow-wrap: anywhere;
    text-align: center;
}
.calculator #calculator-title:focus {
    outline: none;
}
.calculator #chooser-title:focus {
    outline: none;
    border-radius: 4px;
    box-shadow: 0 2px 0 rgba(0, 107, 105, .35);
}
.calculator .calculator-title-meta {
    display: block;
    margin-top: .3rem;
    color: var(--primary-color);
    font-size: clamp(1rem, 3vw, 1.35rem);
    font-weight: 600;
    line-height: 1.25;
    letter-spacing: .02em;
}
.calculator .fields { display: grid; grid-template-columns: minmax(0, 1fr); gap: 1.1rem; }
.calculator .fields > div {
    min-width: 0;
    padding: clamp(.75rem, 3vw, 1.2rem);
    border-radius: 20px;
    background: var(--calculator-field-tint);
}
.calculator .fields label {
    display: block;
    padding: .7rem 1rem;
    margin-bottom: .75rem;
    border-radius: 12px;
    background: var(--primary-color);
    color: white;
    font-size: clamp(1.3rem, 4vw, 1.8rem);
    font-weight: bold;
    line-height: 1.3;
    overflow-wrap: anywhere;
}
.calculator select {
    box-sizing: border-box;
    width: 100%;
    min-height: 58px;
    padding: .85rem 3rem .85rem 1rem;
    border: 1px solid var(--primary-color);
    border-radius: 12px;
    appearance: none;
    background-color: white;
    background-image: linear-gradient(45deg, transparent 50%, #394648 50%), linear-gradient(135deg, #394648 50%, transparent 50%);
    background-position: calc(100% - 23px) 50%, calc(100% - 16px) 50%;
    background-size: 7px 7px;
    background-repeat: no-repeat;
    color: #394648;
    font: inherit;
    font-size: clamp(1.1rem, 3vw, 1.3rem);
    cursor: pointer;
}
.calculator .btn { min-height: 48px; max-width: 100%; box-sizing: border-box; border-radius: 12px; padding: .85rem 1.25rem; white-space: normal; overflow-wrap: anywhere; line-height: 1.75; font-family: inherit; font-size: 1.5rem; cursor: pointer; background-color: var(--primary-color); border-color: var(--primary-color); }
.calculator .actions { margin-top: 1.25rem; }
.calculator .calculator-shell :is(a, button, input, select):focus-visible,
.calculator #navLogo:focus-visible,
.calculator footer a:focus-visible { outline: 3px solid var(--secondary-color); outline-offset: 4px; }
.calculator .result-panel[data-stage] {
    --calculator-result-bg: #FFFFFF;
    --calculator-result-fg: var(--calculator-result-dark);
    box-sizing: border-box;
    width: 100%;
    border: 2px solid var(--primary-color);
    border-radius: 20px;
    padding: clamp(1.25rem, 4vw, 2rem);
    margin-top: 1.25rem;
    background: var(--calculator-result-bg);
    color: var(--calculator-result-fg);
    text-align: center;
}
.calculator .result-panel[data-stage="IA"],
.calculator .result-panel[data-stage="IB"] { --calculator-result-bg: var(--stage-i-bg); --calculator-result-fg: #FFFFFF; border-color: var(--stage-i-bg); }
.calculator .result-panel[data-stage="IIA"],
.calculator .result-panel[data-stage="IIB"],
.calculator .result-panel[data-stage="IIC"] { --calculator-result-bg: var(--stage-ii-bg); --calculator-result-fg: #000000; border-color: var(--stage-ii-bg); }
.calculator .result-panel[data-stage="III"],
.calculator .result-panel[data-stage="IIIA"],
.calculator .result-panel[data-stage="IIIB"],
.calculator .result-panel[data-stage="IIIC"],
.calculator .result-panel[data-stage="IIID"] { --calculator-result-bg: var(--stage-iii-bg); --calculator-result-fg: #000000; border-color: var(--stage-iii-bg); }
.calculator .result-panel[data-stage="IV"] { --calculator-result-bg: var(--stage-iv-bg); --calculator-result-fg: #FFFFFF; border-color: var(--stage-iv-bg); }
.calculator .result-panel[data-stage] .stage,
.calculator .result-panel[data-stage] .result p {
    background-color: var(--calculator-result-bg);
    color: var(--calculator-result-fg);
}
.calculator .result p { margin: .5rem 0 1.25rem; padding: 0; text-align: center; font-size: clamp(1.1rem, 3vw, 1.35rem); overflow-wrap: anywhere; }
.calculator .stage { display: block; font-size: clamp(2rem, 7vw, 3rem); font-weight: bold; line-height: 1.2; overflow-wrap: anywhere; }
.calculator .result-panel .btn { background: #FFFFFF; border-color: #394648; color: #394648; }
.calculator .result-panel .btn:hover { background: #FFFFFF; color: #394648; text-decoration: underline; box-shadow: inset 0 0 0 1px #394648; }
.calculator .result-panel .btn:focus-visible { background: #FFFFFF; color: #394648; outline: 3px solid #394648; outline-offset: 3px; box-shadow: 0 0 0 6px #FFFFFF; }
@media (max-width: 520px) {
    .calculator .actions > button { width: 100%; }
}
@media (forced-colors: active) {
    .calculator select { appearance: auto; background-image: none; }
    .calculator .result-panel[data-stage] { --calculator-result-bg: Canvas; --calculator-result-fg: CanvasText; border-color: CanvasText; }
}