.hole-spacing-calculator {
    width: min(880px, calc(100% - 40px));
    margin: 0 auto;
    padding: 28px 0 48px;
    display: grid;
    gap: 18px;
    color: var(--text);
}

.hole-spacing-calculator__header {
    display: grid;
    gap: 4px;
}

.hole-spacing-calculator__header h1,
.hole-spacing-calculator__panel h2,
.hole-spacing-calculator__result h2,
.hole-spacing-calculator__result h3 {
    margin: 0;
}

.hole-spacing-calculator__intro {
    color: var(--muted-2);
    font-size: 15px;
}

.hole-spacing-calculator__panel,
.hole-spacing-calculator__result {
    padding: 20px;
    background: var(--surface);
    border: 1px solid var(--overlay-border);
    border-radius: 8px;
}

.hole-spacing-calculator__panel h2,
.hole-spacing-calculator__result h2 {
    font-size: 22px;
}

.hole-spacing-calculator__form {
    display: grid;
    gap: 18px;
    margin-top: 18px;
}

.hole-spacing-calculator__fields {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

.hole-spacing-calculator__field {
    display: grid;
    gap: 8px;
    min-width: 0;
}

.hole-spacing-calculator__field label {
    color: var(--text);
    font-size: 14px;
    font-weight: 700;
}

.hole-spacing-calculator__field input {
    width: 100%;
    min-width: 0;
    min-height: 42px;
    box-sizing: border-box;
    padding: 10px 12px;
    background: var(--input-bg);
    color: var(--text);
    border: 1px solid var(--input-border);
    border-radius: 6px;
    font: inherit;
    font-size: 15px;
}

.hole-spacing-calculator__field input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: none;
}

.hole-spacing-calculator__field input[aria-invalid="true"] {
    border-color: var(--error-text);
}

.hole-spacing-calculator__actions {
    display: flex;
    justify-content: flex-end;
}

.hole-spacing-calculator__submit {
    min-height: 40px;
    padding: 10px 20px;
    background: var(--btn-gradient);
    color: #000000;
    border: 0;
    border-radius: 6px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
}

.hole-spacing-calculator__submit:hover {
    background: var(--button-gradient-hover);
}

.hole-spacing-calculator__submit:focus-visible {
    outline: 2px solid var(--accent-color);
    outline-offset: 3px;
}

.hole-spacing-calculator__result[hidden] {
    display: none;
}

.hole-spacing-calculator__result[data-state="error"] {
    border-color: var(--error-text);
}

.hole-spacing-calculator__error {
    color: var(--error-text);
    font-size: 15px;
}

.hole-spacing-calculator__summary {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
    margin: 16px 0 20px;
}

.hole-spacing-calculator__metric {
    min-width: 0;
    padding: 12px;
    background: var(--card-bg-strong);
    border-radius: 8px;
}

.hole-spacing-calculator__metric dt {
    color: var(--muted-2);
    font-size: 13px;
}

.hole-spacing-calculator__metric dd {
    margin: 4px 0 0;
    color: var(--text);
    font-size: 20px;
    font-weight: 700;
}

.hole-spacing-calculator__result h3 {
    font-size: 16px;
}

.hole-spacing-calculator__positions {
    margin-top: 10px;
    padding: 12px;
    background: var(--input-bg);
    color: var(--text);
    border: 1px solid var(--input-border);
    border-radius: 6px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 14px;
    font-variant-numeric: tabular-nums;
    line-height: 1.7;
    overflow-wrap: anywhere;
}

@media (max-width: 720px) {
    .hole-spacing-calculator__fields {
        grid-template-columns: 1fr;
    }

    .hole-spacing-calculator__summary {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 480px) {
    .hole-spacing-calculator {
        width: min(100% - 28px, 880px);
        padding-top: 20px;
    }

    .hole-spacing-calculator__panel,
    .hole-spacing-calculator__result {
        padding: 16px;
    }

    .hole-spacing-calculator__summary {
        grid-template-columns: 1fr;
    }

    .hole-spacing-calculator__submit {
        width: 100%;
    }
}