@charset "utf-8";
/* CSS Document */
/* =========================================================
   CalcAtlas Calculator Layout
   Shared styles for calculator pages
   ========================================================= */

.calculator-page {
    max-width: 1100px;
    margin: 0 auto;
    padding: 32px 20px 60px;
}

.breadcrumbs {
    font-size: 0.9rem;
    margin-bottom: 24px;
}

.breadcrumbs a {
    text-decoration: none;
}

.calculator-intro {
    max-width: 760px;
    margin-bottom: 32px;
}

.calculator-intro h1 {
    margin-bottom: 12px;
}

.calculator-tool {
    max-width: 720px;
    padding: 28px;
    margin: 30px 0;
    border: 1px solid #d9dfe7;
    border-radius: 14px;
    background: #ffffff;
}

.calculator-field {
    margin-bottom: 20px;
}

.calculator-field label {
    display: block;
    font-weight: 600;
    margin-bottom: 7px;
}

.calculator-field input,
.calculator-field select {
    width: 100%;
    box-sizing: border-box;
    padding: 12px 14px;
    border: 1px solid #bcc5d0;
    border-radius: 8px;
    font-size: 1rem;
}

.calculator-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    margin-top: 24px;
}

.calculate-button,
.reset-button {
    border: 0;
    border-radius: 8px;
    padding: 12px 22px;
    font-size: 1rem;
    cursor: pointer;
}

.calculate-button {
    background: #315f8c;
    color: #ffffff;
}

.reset-button {
    background: #eef1f5;
    color: #222222;
}

.calculator-result {
    margin-top: 28px;
    padding: 22px;
    border-radius: 10px;
    background: #f3f7fb;
}

.calculator-result h2 {
    margin-top: 0;
}

.result-main {
    font-size: 1.8rem;
    font-weight: 700;
    margin: 8px 0;
}

.result-secondary {
    font-size: 1rem;
    margin-top: 8px;
}

.calculator-error {
    color: #a52222;
    font-weight: 600;
    margin-top: 14px;
}

.calculator-content {
    max-width: 800px;
    margin-top: 42px;
}

.calculator-content section {
    margin-bottom: 42px;
}

.formula-box,
.example-box {
    padding: 20px;
    border-radius: 10px;
    background: #f7f8fa;
}

.rebar-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

.rebar-table th,
.rebar-table td {
    padding: 11px;
    border-bottom: 1px solid #dfe3e8;
    text-align: left;
}

.rebar-table th {
    background: #f3f5f7;
}

/* =========================================================
   Calculator controls
   ========================================================= */

.measurement-system {
    border: 0;
    padding: 0;
    margin: 0 0 24px;
}

.measurement-system legend {
    font-weight: 600;
    margin-bottom: 10px;
}

.measurement-options {
    display: flex;
    gap: 10px;
}

.measurement-option {
    cursor: pointer;
}

.measurement-option input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.measurement-option span {
    display: block;
    padding: 10px 22px;
    border: 1px solid #bcc5d0;
    border-radius: 8px;
    background: #ffffff;
}

.measurement-option input:checked + span {
    background: #315f8c;
    color: #ffffff;
    border-color: #315f8c;
}


.input-with-unit {
    display: flex;
    align-items: stretch;
}

.input-with-unit input {
    border-radius: 8px 0 0 8px;
}

.input-unit {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 58px;
    padding: 0 14px;
    border: 1px solid #bcc5d0;
    border-left: 0;
    border-radius: 0 8px 8px 0;
    background: #f3f5f7;
    font-weight: 600;
}


.field-error {
    min-height: 20px;
    margin-top: 6px;
    font-size: 0.9rem;
    color: #a52222;
}


.result-primary {
    margin-bottom: 22px;
}

.result-label {
    margin-top: 3px;
    font-size: 0.9rem;
    color: #58636d;
}


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

.result-item {
    padding: 15px;
    border-radius: 8px;
    background: #ffffff;
}

.result-item strong {
    display: block;
    margin-bottom: 5px;
    font-size: 1.15rem;
}

.result-item span {
    display: block;
    font-size: 0.85rem;
    color: #58636d;
}

/* =========================================================
   FAQ
   ========================================================= */

.calculator-faq {
    margin-top: 42px;
}

.faq-item {
    padding: 20px 0;
    border-bottom: 1px solid #dfe3e8;
}

.faq-item:first-of-type {
    padding-top: 6px;
}

.faq-item h3 {
    margin: 0 0 10px;
    font-size: 1.1rem;
}

.faq-item p {
    margin-bottom: 0;
}


/* =========================================================
   Related calculators
   ========================================================= */

.related-calculator-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 16px;
    margin-top: 20px;
}

.related-calculator-card {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 18px;
    border: 1px solid #d9dfe7;
    border-radius: 10px;
    background: #ffffff;
}

.related-calculator-card strong {
    font-size: 1rem;
}

.related-calculator-card span {
    font-size: 0.85rem;
    color: #66717c;
}

@media (max-width: 700px) {

    .calculator-page {
        padding: 22px 18px 45px;
    }

    .calculator-intro h1 {
    font-size: 2rem;
    line-height: 1.15;
}

    .calculator-intro p {
        font-size: 1.1rem;
        line-height: 1.6;
    }

    .breadcrumbs {
        font-size: 0.95rem;
        line-height: 1.5;
    }

    .calculator-tool {
        padding: 22px;
        margin: 26px 0 34px;
    }

    .calculator-field label {
        font-size: 1.1rem;
    }

    .calculator-field input,
    .calculator-field select {
        font-size: 1rem;
        padding: 13px 14px;
    }

    .calculator-field small {
        font-size: 0.9rem;
        line-height: 1.4;
    }

    .calculator-actions {
        flex-direction: column;
    }

    .calculate-button,
    .reset-button {
        width: 100%;
        font-size: 1rem;
    }

    .calculator-result h2 {
        font-size: 1.5rem;
    }

    .result-main {
        font-size: 1.8rem;
    }

    .result-secondary {
        font-size: 1rem;
    }

    .calculator-content h2 {
        font-size: 1.55rem;
        line-height: 1.25;
    }

    .calculator-content p,
    .calculator-content li {
        font-size: 1rem;
        line-height: 1.65;
    }

    .formula-box,
    .example-box {
        padding: 18px;
    }

    .rebar-table th,
    .rebar-table td {
        font-size: 0.95rem;
        padding: 11px 8px;
    }
	
	.measurement-options {
    width: 100%;
}

.measurement-option {
    flex: 1;
}

.measurement-option span {
    text-align: center;
}

.result-grid {
    grid-template-columns: 1fr;
}

.result-item {
    padding: 14px;
}
	.related-calculator-grid {
    grid-template-columns: 1fr;
}

.faq-item h3 {
    font-size: 1.05rem;
}

}