/**
 * Project Calculator Pro V2
 * Metric and Imperial Conversion Calculator
 */

/* =========================================================
   CALCULATOR CONTAINER
   ========================================================= */

.pcp-metric-imperial {
    max-width: 700px;
    margin: 0 auto;
    padding: 20px;
    font-family: Arial, Helvetica, sans-serif;
    box-sizing: border-box;
}

.pcp-metric-imperial *,
.pcp-metric-imperial *::before,
.pcp-metric-imperial *::after {
    box-sizing: border-box;
}


/* =========================================================
   HEADINGS AND INSTRUCTIONS
   ========================================================= */

.pcp-metric-imperial h2 {
    margin: 0 0 10px;
    color: #283655;
    font-family: Helvetica, Arial, sans-serif;
    font-size: 24px;
    font-weight: 800;
    line-height: 1.25;
}

.pcp-metric-imperial .calc-instructions {
    margin: 8px 0 20px;
    color: #000;
    font-family: Helvetica, Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
}

.pcp-metric-imperial .pcp-section-title,
.pcp-metric-imperial .pcp-subtitle {
    margin: 0 0 12px;
    color: #283655;
    font-size: 18px;
    font-weight: 700;
    line-height: 1.3;
}


/* =========================================================
   CONVERSION AND SETTINGS SECTIONS
   ========================================================= */

.pcp-metric-imperial .pcp-section,
.pcp-metric-imperial .pcp-settings {
    margin: 20px 0;
    padding: 15px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 10px;
}

.pcp-metric-imperial .pcp-section {
    margin-top: 15px;
}

.pcp-metric-imperial .pcp-settings .pcp-subtitle {
    margin-top: 0;
}


/* =========================================================
   FIELD GROUPS AND LABELS
   ========================================================= */

.pcp-metric-imperial .pcp-group {
    margin-bottom: 14px;
}

.pcp-metric-imperial .pcp-group:last-child {
    margin-bottom: 0;
}

.pcp-metric-imperial label {
    display: block;
    margin: 0 0 5px;
    color: #000;
    font-size: 16px;
    font-weight: 700;
}

.pcp-metric-imperial .pcp-field-note {
    margin: 6px 0 0;
    color: #000;
    font-size: 14px;
    font-weight: 400;
    line-height: 1.45;
}


/* =========================================================
   INPUTS AND SELECTORS
   ========================================================= */

.pcp-metric-imperial input,
.pcp-metric-imperial select {
    width: 100%;
    min-height: 46px;
    padding: 10px 12px;
    color: #000;
    background: #fff;
    border: 1px solid #bbb;
    border-radius: 6px;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
}

.pcp-metric-imperial select {
    cursor: pointer;
}

.pcp-metric-imperial input:focus,
.pcp-metric-imperial select:focus {
    outline: none;
    border-color: #f26522;
    box-shadow: 0 0 0 2px rgba(242, 101, 34, 0.2);
}

.pcp-metric-imperial input[aria-invalid="true"] {
    border-color: #f26522;
    box-shadow: 0 0 0 2px rgba(242, 101, 34, 0.2);
}


/* =========================================================
   CATEGORY AND PRECISION SELECTORS
   ========================================================= */

.pcp-metric-imperial .mic-category,
.pcp-metric-imperial .mic-precision {
    background: #283655;
    color: #fff;
}

.pcp-metric-imperial .mic-category option,
.pcp-metric-imperial .mic-precision option {
    background: #fff;
    color: #000;
}


/* =========================================================
   UNIT CONVERSION ROW
   ========================================================= */

.pcp-metric-imperial .mic-unit-row {
    display: grid;
    grid-template-columns:
        minmax(0, 1fr)
        54px
        minmax(0, 1fr);
    align-items: end;
    gap: 12px;
    margin-top: 4px;
}

.pcp-metric-imperial .mic-unit-group {
    min-width: 0;
    margin-bottom: 0;
}

.pcp-metric-imperial .mic-from-unit,
.pcp-metric-imperial .mic-to-unit {
    background: #283655;
    color: #fff;
}

.pcp-metric-imperial .mic-from-unit option,
.pcp-metric-imperial .mic-to-unit option {
    background: #fff;
    color: #000;
}


/* =========================================================
   SWAP BUTTON
   ========================================================= */

.pcp-metric-imperial .mic-swap-wrap {
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.pcp-metric-imperial .mic-swap-button {
    flex: none;
    width: 54px;
    min-width: 54px;
    min-height: 46px;
    padding: 8px;
    font-size: 24px;
    line-height: 1;
}


/* =========================================================
   PRIMARY BUTTON ROW
   ========================================================= */

.pcp-metric-imperial .pcp-button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 20px;
}

.pcp-metric-imperial .pcp-button-row .pcp-btn {
    flex: 1 1 150px;
}


/* =========================================================
   BUTTONS
   ========================================================= */

.pcp-metric-imperial .pcp-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 12px 16px;
    background: #f26522;
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.3px;
    line-height: 1.2;
    text-align: center;
    transition:
        background-color 0.2s ease,
        transform 0.1s ease;
}

.pcp-metric-imperial .pcp-btn:hover {
    background: #283655;
}

.pcp-metric-imperial .pcp-btn:focus-visible {
    outline: 3px solid rgba(242, 101, 34, 0.3);
    outline-offset: 2px;
}

.pcp-metric-imperial .pcp-btn:active {
    transform: translateY(1px);
}

.pcp-metric-imperial .mic-swap-button {
    background: #283655;
}

.pcp-metric-imperial .mic-swap-button:hover {
    background: #f26522;
}


/* =========================================================
   RESULTS
   ========================================================= */

.pcp-metric-imperial .pcp-result {
    margin-top: 20px;
    font-size: 16px;
    line-height: 1.5;
}

.pcp-metric-imperial .pcp-result:empty {
    display: none;
}

.pcp-metric-imperial .pcp-result-success {
    display: block;
    padding: 15px;
    background: #f4f4f4;
    border-radius: 8px;
}

.pcp-metric-imperial .pcp-result-success h3 {
    margin: 0 0 12px;
    color: #283655;
    font-size: 20px;
    font-weight: 800;
}

.pcp-metric-imperial .pcp-result-success p {
    margin: 6px 0;
    color: #000;
}

.pcp-metric-imperial .mic-result-equation {
    margin: 12px 0 16px !important;
    padding: 14px;
    background: #fff;
    border: 1px solid #ddd;
    border-left: 4px solid #f26522;
    border-radius: 6px;
    color: #283655 !important;
    font-size: 21px;
    line-height: 1.4;
    overflow-wrap: anywhere;
}

.pcp-metric-imperial .pcp-result-note {
    margin-top: 14px !important;
    padding-top: 12px;
    border-top: 1px solid #ddd;
    font-size: 14px;
}


/* =========================================================
   VALIDATION ERRORS
   ========================================================= */

.pcp-metric-imperial .pcp-result-error {
    display: block;
    padding: 12px 15px;
    background: #f4f4f4;
    border-left: 4px solid #f26522;
    border-radius: 6px;
    color: #000;
    font-weight: 700;
}


/* =========================================================
   CALCULATOR NOTE
   ========================================================= */

.pcp-metric-imperial .pcp-calculator-note {
    margin: 16px 0 0;
    padding: 12px 14px;
    background: #f4f4f4;
    border-left: 4px solid #283655;
    border-radius: 6px;
    color: #000;
    font-size: 14px;
    line-height: 1.5;
}


/* =========================================================
   MOBILE LAYOUT
   ========================================================= */

@media (max-width: 600px) {
    .pcp-metric-imperial {
        padding: 15px;
    }

    .pcp-metric-imperial h2 {
        font-size: 22px;
    }

    .pcp-metric-imperial .pcp-section-title,
    .pcp-metric-imperial .pcp-subtitle {
        font-size: 17px;
    }

    .pcp-metric-imperial .mic-unit-row {
        grid-template-columns: 1fr;
        align-items: stretch;
        gap: 10px;
    }

    .pcp-metric-imperial .mic-swap-wrap {
        align-items: center;
    }

    .pcp-metric-imperial .mic-swap-button {
        width: 100%;
        min-width: 0;
        min-height: 44px;
    }

    .pcp-metric-imperial .pcp-button-row {
        gap: 10px;
    }

    .pcp-metric-imperial .pcp-button-row .pcp-btn {
        flex-basis: calc(50% - 5px);
    }

    .pcp-metric-imperial .mic-result-equation {
        font-size: 18px;
    }
}

@media (max-width: 420px) {
    .pcp-metric-imperial .pcp-button-row .pcp-btn {
        flex-basis: 100%;
    }

    .pcp-metric-imperial .pcp-section,
    .pcp-metric-imperial .pcp-settings {
        padding: 12px;
    }
}


/* =========================================================
   PRINT / PDF LAYOUT
   ========================================================= */

@media print {
    .pcp-metric-imperial {
        max-width: 100%;
        padding: 0;
    }

    .pcp-metric-imperial .pcp-button-row,
    .pcp-metric-imperial .mic-swap-wrap {
        display: none;
    }

    .pcp-metric-imperial .pcp-section,
    .pcp-metric-imperial .pcp-settings,
    .pcp-metric-imperial .pcp-result,
    .pcp-metric-imperial .pcp-calculator-note {
        break-inside: avoid;
        page-break-inside: avoid;
    }

    .pcp-metric-imperial select {
        background: #fff;
        color: #000;
    }
}