.dtl-calculator,
.dtl-calculator * {
    box-sizing: border-box;
}

.dtl-calculator {
    --dtl-text: #1a4177;
    --dtl-muted: #5d4810;
    --dtl-border: #efd68a;
    --dtl-surface: #fffdf8;
    --dtl-soft: #fff9df;
    --dtl-primary: #fcd402;
    --dtl-primary-dark: #d79a05;
    --dtl-accent: #b67905;
    --dtl-success: #1a4177;
    --dtl-warning: #b67905;
    --dtl-control-height: 48px;
    --dtl-rule-height: 64px;
    max-width: 720px;
    margin: 18px auto;
    overflow: hidden;
    color: var(--dtl-text);
    background: var(--dtl-surface);
    border: 1px solid var(--dtl-border);
    border-radius: 8px;
    box-shadow: 0 14px 40px rgba(15, 23, 42, 0.08);
    font-family: inherit;
}

.dtl-calculator__header {
    padding: 14px 18px;
    background: linear-gradient(90deg, #fcd402 0%, #fff4bf 100%);
    border-bottom: 1px solid var(--dtl-border);
}

.dtl-calculator__header h2 {
    margin: 0;
    color: #1a4177;
    font-size: 21px;
    line-height: 1.25;
    font-weight: 700;
    letter-spacing: 0;
}

.dtl-calculator__form {
    display: grid;
    gap: 16px;
    padding: 18px;
}

.dtl-fieldset {
    min-width: 0;
    margin: 0;
    padding: 0;
    border: 0;
}

.dtl-fieldset legend,
.dtl-field span {
    display: flex;
    align-items: center;
    gap: 7px;
    margin: 0 0 6px;
    color: var(--dtl-text);
    font-size: 14px;
    font-weight: 700;
    line-height: 1.35;
}

.dtl-field input[type='date'] {
    width: 100%;
    height: var(--dtl-control-height);
    min-height: var(--dtl-control-height);
    padding: 8px 10px;
    color: var(--dtl-text);
    background: #fff;
    border: 1px solid var(--dtl-border);
    border-radius: 6px;
    font: inherit;
    line-height: 1.3;
}

.dtl-field input[type='date']:focus,
.dtl-segmented__item:focus-within,
.dtl-rule:focus-within {
    border-color: var(--dtl-primary);
    outline: 2px solid rgba(252, 212, 2, 0.3);
    outline-offset: 1px;
}

.dtl-segmented {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.dtl-segmented__item,
.dtl-rule {
    position: relative;
    display: flex;
    align-items: center;
    min-width: 0;
    height: var(--dtl-control-height);
    min-height: var(--dtl-control-height);
    padding: 8px 10px;
    cursor: pointer;
    background: #fff;
    border: 1px solid var(--dtl-border);
    border-radius: 6px;
    transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.dtl-segmented__item input,
.dtl-rule input {
    position: absolute;
    width: 1px;
    height: 1px;
    opacity: 0;
    pointer-events: none;
}

.dtl-segmented__item span,
.dtl-rule span {
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 0;
    width: 100%;
    overflow-wrap: anywhere;
}

.dtl-label-icon,
.dtl-option-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    flex: 0 0 18px;
    margin-right: 0;
    color: var(--dtl-accent);
    font-size: 14px;
    line-height: 1;
}

.dtl-option-icon {
    color: #1a4177;
}

.dtl-segmented__item.is-active,
.dtl-rule.is-active {
    background: #fff9df;
    border-color: var(--dtl-primary);
    box-shadow: inset 0 0 0 1px var(--dtl-primary);
}

.dtl-rule-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.dtl-rule {
    height: var(--dtl-rule-height);
    min-height: var(--dtl-rule-height);
}

.dtl-rule strong,
.dtl-rule small {
    display: block;
    line-height: 1.35;
}

.dtl-rule small {
    margin-top: 3px;
    color: var(--dtl-muted);
    font-size: 12px;
}

.dtl-button {
    width: 100%;
    height: var(--dtl-control-height);
    min-height: var(--dtl-control-height);
    padding: 10px 14px;
    cursor: pointer;
    color: #1a4177;
    background: var(--dtl-primary);
    border: 0;
    border-radius: 6px;
    font: inherit;
    font-weight: 700;
    line-height: 1.25;
    transition: background 160ms ease, transform 160ms ease;
}

.dtl-button:hover,
.dtl-button:focus {
    background: var(--dtl-primary-dark);
    color: #fff;
}

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

.dtl-button:disabled {
    cursor: wait;
    opacity: 0.72;
}

.dtl-result {
    margin: 0 18px 18px;
    padding: 16px;
    border: 1px solid var(--dtl-border);
    border-radius: 8px;
    background: var(--dtl-soft);
}

.dtl-result[hidden],
[data-dtl-rules][hidden] {
    display: none !important;
}

.dtl-result--error {
    color: #5a4210;
    background: #fff4c9;
    border-color: #efd68a;
}

.dtl-result--success {
    background: #fff9df;
}

.dtl-result__top {
    display: grid;
    gap: 4px;
    padding-bottom: 10px;
    margin-bottom: 10px;
    border-bottom: 1px solid var(--dtl-border);
}

.dtl-result__top > span {
    color: var(--dtl-muted);
    font-size: 13px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0;
}

.dtl-result__top strong {
    color: var(--dtl-accent);
    font-size: 27px;
    line-height: 1.15;
}

.dtl-result__grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
}

.dtl-result__grid p,
.dtl-result__status,
.dtl-result__note,
.dtl-result--error p {
    margin: 0;
}

.dtl-result__grid p {
    min-width: 0;
    padding: 9px 10px;
    background: #fff;
    border: 1px solid #efd68a;
    border-radius: 6px;
}

.dtl-result__grid p > span {
    display: block;
    margin-bottom: 4px;
    color: var(--dtl-muted);
    font-size: 13px;
    line-height: 1.3;
}

.dtl-result__grid strong {
    display: block;
    color: var(--dtl-text);
    font-size: 15px;
    line-height: 1.35;
    overflow-wrap: anywhere;
}

.dtl-result__number {
    display: inline;
    color: var(--dtl-accent);
    font-size: 1.08em;
    font-weight: 800;
    white-space: nowrap;
}

.dtl-result__date .dtl-result__number {
    font-size: inherit;
}

.dtl-result__grid strong .dtl-result__number {
    font-size: 1.12em;
}

.dtl-result__status .dtl-result__number {
    font-size: 1.18em;
}

.dtl-result__note .dtl-result__number {
    font-weight: 700;
}

.dtl-result__status {
    margin-top: 10px;
    color: var(--dtl-success);
    font-weight: 700;
}

.dtl-result--past .dtl-result__status {
    color: var(--dtl-muted);
}

.dtl-result--today .dtl-result__status {
    color: var(--dtl-warning);
}

.dtl-result__note {
    margin-top: 8px;
    color: var(--dtl-muted);
    font-size: 14px;
    line-height: 1.45;
}

@media (max-width: 640px) {
    .dtl-calculator {
        margin: 12px 0;
        border-radius: 8px;
    }

    .dtl-calculator__header,
    .dtl-calculator__form,
    .dtl-result {
        padding: 14px;
    }

    .dtl-result {
        margin: 0 14px 14px;
    }

    .dtl-calculator__header h2 {
        font-size: 19px;
    }

    .dtl-segmented,
    .dtl-rule-grid,
    .dtl-result__grid {
        grid-template-columns: 1fr;
    }

    .dtl-result__top strong {
        font-size: 23px;
    }
}