/* =====================================================
   FORAGE AGRONOMY LAB
   SEEDING RATE CALCULATOR
   Page-specific styles only
===================================================== */


/* =====================================================
   CALCULATOR SECTION
===================================================== */

.calculator-section {
    padding: 100px 0 115px;
    background: var(--cream);
}

.calculator-intro {
    max-width: 820px;
    margin-bottom: 38px;
}

.calculator-intro h2 {
    margin-bottom: 18px;

    color: var(--brown-dark);

    font-size:
        clamp(36px, 5vw, 52px);

    font-weight: 500;
    line-height: 1.1;

    letter-spacing: -0.6px;
}

.calculator-intro p:not(.eyebrow) {
    max-width: 760px;

    color: var(--text-light);

    font-size: 17px;
    line-height: 1.75;
}


/* =====================================================
   DATA STATUS
===================================================== */

.data-status {
   display: none;
   
    padding: 15px 19px;
    margin-bottom: 30px;

    background: var(--success-bg);

    border: 1px solid #d3dfcc;

    color: var(--green-dark);

    font-family:
        Arial,
        Helvetica,
        sans-serif;

    font-size: 13px;
    line-height: 1.55;
}

.data-status.warning {
    background: var(--warning-bg);

    border-color: #e6d5aa;

    color: #6a5422;
}


/* =====================================================
   CALCULATOR CARD
===================================================== */

.calculator-card {
    position: relative;

    margin-bottom: 38px;

    padding: 43px 45px;

    background: var(--white);

    border: 1px solid var(--border-light);

    box-shadow:
        0 15px 40px
        rgba(59, 42, 32, 0.07);
}

.calculator-card::before {
    content: "";

    position: absolute;

    left: 0;
    top: 0;

    width: 100%;
    height: 3px;

    background: var(--green);
}


/* =====================================================
   CARD HEADING
===================================================== */

.card-heading {
    margin-bottom: 34px;
}

.card-heading h2 {
    margin-bottom: 9px;

    color: var(--brown-dark);

    font-size: 31px;
    font-weight: 500;

    line-height: 1.2;
}

.card-heading p:last-child {
    margin-bottom: 0;

    color: var(--text-light);

    font-size: 15px;
    line-height: 1.65;
}


/* =====================================================
   FORM GRID
===================================================== */

.form-grid {
    display: grid;

    grid-template-columns:
        repeat(4, minmax(0, 1fr));

    gap: 20px;
}

.form-group label {
    display: block;

    margin-bottom: 8px;

    color: var(--brown-dark);

    font-family:
        Arial,
        Helvetica,
        sans-serif;

    font-size: 11px;
    font-weight: 700;

    letter-spacing: 0.5px;
}

.form-group input,
.form-group select {
    width: 100%;

    min-height: 48px;

    padding: 10px 12px;

    background: var(--white);

    border: 1px solid var(--border);

    color: var(--text);

    font-size: 15px;

    outline: none;

    transition:
        border-color 0.2s ease,
        box-shadow 0.2s ease,
        background-color 0.2s ease;
}

.form-group input:hover,
.form-group select:hover {
    border-color: var(--brown-light);
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--green);

    box-shadow:
        0 0 0 3px
        rgba(83, 107, 69, 0.10);
}


/* =====================================================
   INPUT WITH UNIT
===================================================== */

.input-with-unit {
    position: relative;
}

.input-with-unit input {
    padding-right: 48px;
}

.input-with-unit span {
    position: absolute;

    right: 13px;
    top: 50%;

    transform:
        translateY(-50%);

    color: var(--text-light);

    font-family:
        Arial,
        Helvetica,
        sans-serif;

    font-size: 12px;

    pointer-events: none;
}


/* =====================================================
   UNIT TOGGLE
===================================================== */

.unit-toggle {
    display: grid;

    grid-template-columns:
        1fr 1fr;

    border: 1px solid var(--border);

    overflow: hidden;
}

.unit-button {
    min-height: 48px;

    background: var(--white);

    border: none;

    color: var(--text-light);

    cursor: pointer;

    font-family:
        Arial,
        Helvetica,
        sans-serif;

    font-size: 12px;
    font-weight: 700;

    transition:
        background-color 0.2s ease,
        color 0.2s ease;
}

.unit-button + .unit-button {
    border-left:
        1px solid var(--border);
}

.unit-button:hover {
    background: var(--cream);
    color: var(--brown-dark);
}

.unit-button.active {
    background: var(--brown-dark);
    color: var(--white);
}


/* =====================================================
   HELP TEXT / TOOLTIP
===================================================== */

.help-text {
    position: relative;

    display: inline-flex;

    align-items: center;
    justify-content: center;

    width: 16px;
    height: 16px;

    margin-left: 5px;

    border-radius: 50%;

    background: var(--brown);

    color: var(--white);

    font-family:
        Arial,
        Helvetica,
        sans-serif;

    font-size: 10px;
    font-weight: 700;

    line-height: 1;

    cursor: help;

    vertical-align: middle;

    outline: none;
}


/* =====================================================
   TOOLTIP
===================================================== */

.tooltip-text {
    position: absolute;

    bottom: calc(100% + 9px);
    left: 50%;

    width: 290px;

    padding: 11px 13px;

    background: var(--brown-dark);
    color: var(--white);

    border-radius: 5px;

    font-family:
        Arial,
        Helvetica,
        sans-serif;

    font-size: 12px;
    font-weight: 400;

    line-height: 1.5;

    text-align: left;

    visibility: hidden;
    opacity: 0;

    transform:
        translateX(-50%)
        translateY(4px);

    transition:
        opacity 0.18s ease,
        transform 0.18s ease;

    z-index: 1000;

    pointer-events: none;
}


/* =====================================================
   TOOLTIP ARROW
===================================================== */

.tooltip-text::after {
    content: "";

    position: absolute;

    top: 100%;
    left: 50%;

    margin-left: -6px;

    border-width: 6px;
    border-style: solid;

    border-color:
        var(--brown-dark)
        transparent
        transparent
        transparent;
}


/* =====================================================
   SHOW TOOLTIP ON HOVER OR KEYBOARD FOCUS
===================================================== */

.help-text:hover .tooltip-text,
.help-text:focus .tooltip-text {
    visibility: visible;

    opacity: 1;

    transform:
        translateX(-50%)
        translateY(0);
}


/* =====================================================
   KEYBOARD FOCUS
===================================================== */

.help-text:focus-visible {
    box-shadow:
        0 0 0 2px var(--white),
        0 0 0 4px var(--brown);
}


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

@media (max-width: 700px) {

    .tooltip-text {
        left: 0;

        width: 250px;

        transform:
            translateY(4px);
    }

    .help-text:hover .tooltip-text,
    .help-text:focus .tooltip-text {
        transform:
            translateY(0);
    }

    .tooltip-text::after {
        left: 8px;
    }

}


/* =====================================================
   GUIDANCE BOX
===================================================== */

.guidance-box {
    margin-top: 26px;

    padding: 21px 23px;

    background: var(--cream);

    border:
        1px solid var(--border-light);

    border-left:
        4px solid var(--green);
}

.guidance-box strong {
    display: block;

    margin-bottom: 5px;

    color: var(--brown-dark);

    font-size: 14px;
}

.guidance-box p {
    margin-bottom: 0;

    color: var(--text-light);

    font-size: 14px;
    line-height: 1.65;
}


/* =====================================================
   SPECIES SECTION
===================================================== */

.species-section {
    margin-bottom: 38px;
}

.section-top {
    display: flex;

    align-items: flex-end;
    justify-content: space-between;

    gap: 30px;

    margin-bottom: 30px;
}

.section-top h2,
.summary-heading h2,
.method-content h2 {
    margin-bottom: 8px;

    color: var(--brown-dark);

    font-size:
        clamp(32px, 4vw, 45px);

    font-weight: 500;

    line-height: 1.12;

    letter-spacing: -0.4px;
}

.section-top p:last-child {
    margin-bottom: 0;

    color: var(--text-light);

    font-size: 16px;
    line-height: 1.65;
}


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

.primary-button {
    flex-shrink: 0;

    min-height: 48px;

    padding: 12px 21px;

    background: var(--brown);

    border: 1px solid var(--brown);

    color: var(--white);

    font-family:
        Arial,
        Helvetica,
        sans-serif;

    font-size: 11px;
    font-weight: 700;

    letter-spacing: 0.8px;

    text-transform: uppercase;

    cursor: pointer;

    transition:
        background-color 0.2s ease,
        border-color 0.2s ease,
        transform 0.2s ease,
        box-shadow 0.2s ease;
}

.primary-button:hover {
    background: var(--green-dark);

    border-color: var(--green-dark);

    box-shadow:
        0 7px 18px
        rgba(62, 84, 53, 0.14);

    transform:
        translateY(-2px);
}

.primary-button:focus-visible,
.unit-button:focus-visible,
.remove-species:focus-visible {
    outline: 2px solid var(--green);

    outline-offset: 3px;
}


/* =====================================================
   SPECIES CARD
===================================================== */

.species-card {
    margin-bottom: 18px;

    background: var(--white);

    border: 1px solid var(--border);

    box-shadow:
        0 8px 25px
        rgba(59, 42, 32, 0.045);

    overflow: hidden;
}


/* =====================================================
   SPECIES HEADER
===================================================== */

.species-header {
    display: flex;

    align-items: center;
    justify-content: space-between;

    gap: 20px;

    padding: 20px 24px;

    background: var(--cream);

    border-bottom:
        1px solid var(--border);
}

.species-number {
    color: var(--green);

    font-family:
        Arial,
        Helvetica,
        sans-serif;

    font-size: 10px;
    font-weight: 700;

    letter-spacing: 1.7px;

    text-transform: uppercase;
}

.remove-species {
    padding: 4px 0;

    background: transparent;

    border: none;

    color: var(--text-light);

    cursor: pointer;

    font-family:
        Arial,
        Helvetica,
        sans-serif;

    font-size: 11px;
    font-weight: 700;

    transition:
        color 0.2s ease;
}

.remove-species:hover {
    color: var(--brown);
}


/* =====================================================
   SPECIES BODY
===================================================== */

.species-body {
    padding: 29px 24px 31px;
}

.species-form-grid {
    display: grid;

    grid-template-columns:
        1.8fr
        1fr
        1fr
        1fr;

    gap: 18px;
}

.species-form-grid.secondary {
    grid-template-columns:
        repeat(4, minmax(0, 1fr));

    margin-top: 20px;
}

.field-label {
    display: block;

    margin-bottom: 7px;

    color: var(--brown-dark);

    font-family:
        Arial,
        Helvetica,
        sans-serif;

    font-size: 10px;
    font-weight: 700;

    letter-spacing: 0.4px;
}

.species-field input,
.species-field select {
    width: 100%;

    min-height: 44px;

    padding: 9px 11px;

    background: var(--white);

    border: 1px solid var(--border);

    color: var(--text);

    font-size: 14px;

    outline: none;

    transition:
        border-color 0.2s ease,
        box-shadow 0.2s ease;
}

.species-field input:focus,
.species-field select:focus {
    border-color: var(--green);

    box-shadow:
        0 0 0 3px
        rgba(83, 107, 69, 0.10);
}

.species-field input[readonly] {
    background: var(--cream);

    color: var(--text-light);

    cursor: default;
}


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

.species-result {
    display: grid;

    grid-template-columns:
        repeat(3, minmax(0, 1fr));

    gap: 12px;

    margin-top: 25px;
}

.result-box {
    padding: 18px;

    background: var(--cream);

    border: 1px solid var(--border);
}

.result-box span {
    display: block;

    margin-bottom: 5px;

    color: var(--text-light);

    font-family:
        Arial,
        Helvetica,
        sans-serif;

    font-size: 9px;
    font-weight: 700;

    letter-spacing: 1px;

    text-transform: uppercase;
}

.result-box strong {
    color: var(--brown-dark);

    font-size: 23px;
    font-weight: 500;

    line-height: 1.2;
}


/* =====================================================
   MIXTURE TOTAL
===================================================== */

.mixture-total {
    display: grid;

    grid-template-columns:
        repeat(3, minmax(0, 1fr));

    margin-top: 25px;

    background: var(--brown-dark);

    color: var(--white);
}

.total-item {
    padding: 25px;

    border-right:
        1px solid
        rgba(255, 255, 255, 0.14);
}

.total-item:last-child {
    border-right: none;
}

.total-item span {
    display: block;

    margin-bottom: 5px;

    color:
        rgba(255, 255, 255, 0.62);

    font-family:
        Arial,
        Helvetica,
        sans-serif;

    font-size: 9px;
    font-weight: 700;

    letter-spacing: 1px;

    text-transform: uppercase;
}

.total-item strong {
    font-size: 26px;
    font-weight: 500;

    line-height: 1.2;
}


/* =====================================================
   SUMMARY
===================================================== */

.summary-section {
    margin-bottom: 38px;

    padding: 48px;

    background: var(--white);

    border: 1px solid var(--border-light);

    box-shadow:
        0 15px 40px
        rgba(59, 42, 32, 0.06);
}

.summary-heading {
    margin-bottom: 30px;
}


/* =====================================================
   SUMMARY TABLE
===================================================== */

.summary-table-wrapper {
    width: 100%;

    overflow-x: auto;
}

.summary-table {
    width: 100%;

    min-width: 850px;

    border-collapse: collapse;
}

.summary-table th {
    padding: 14px 13px;

    background: var(--brown-dark);

    color: var(--white);

    text-align: left;

    font-family:
        Arial,
        Helvetica,
        sans-serif;

    font-size: 9px;
    font-weight: 700;

    letter-spacing: 1px;

    text-transform: uppercase;
}

.summary-table td {
    padding: 14px 13px;

    border-bottom:
        1px solid var(--border);

    color: var(--text-light);

    font-size: 14px;
    line-height: 1.5;
}

.summary-table tbody tr:hover {
    background: var(--cream);
}

.summary-table tfoot td {
    background: var(--cream-dark);

    border-top:
        2px solid var(--brown);

    color: var(--brown-dark);

    font-weight: 700;
}

.empty-summary {
    padding: 30px !important;

    color: var(--text-light) !important;

    text-align: center;
}


/* =====================================================
   METHOD SECTION
===================================================== */

.method-section {
    margin-bottom: 35px;

    padding: 60px 45px;

    background: var(--cream-dark);

    border-top:
        1px solid var(--border);

    border-bottom:
        1px solid var(--border);
}

.method-content {
    max-width: 850px;
}

.method-content p:not(.eyebrow) {
    margin-bottom: 16px;

    color: var(--text-light);

    font-size: 16px;
    line-height: 1.75;
}

.formula-box {
    margin: 26px 0;

    padding: 22px 25px;

    background: var(--white);

    border: 1px solid var(--border);
}

.formula-box p {
    margin-bottom: 8px;

    color: var(--brown);

    font-family:
        Arial,
        Helvetica,
        sans-serif;

    font-size: 14px;
    line-height: 1.6;
}

.formula-box p:last-child {
    margin-bottom: 0;
}

.method-note {
    font-size: 13px !important;
    color: var(--text-light);
}


/* =====================================================
   TABLET
===================================================== */

@media (max-width: 1000px) {

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

    .species-form-grid {
        grid-template-columns:
            repeat(2, minmax(0, 1fr));
    }

    .species-form-grid.secondary {
        grid-template-columns:
            repeat(2, minmax(0, 1fr));
    }

}


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

@media (max-width: 700px) {

    .calculator-section {
        padding: 65px 0 75px;
    }

    .calculator-intro h2 {
        font-size: 36px;
    }

    .calculator-intro p:not(.eyebrow) {
        font-size: 16px;
    }

    .calculator-card,
    .summary-section {
        padding: 30px 22px;
    }


    /* Form */

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


    /* Section heading */

    .section-top {
        align-items: flex-start;

        flex-direction: column;

        gap: 18px;
    }

    .section-top h2 {
        font-size: 35px;
    }

    .primary-button {
        width: 100%;
    }


    /* Species */

    .species-form-grid,
    .species-form-grid.secondary {
        grid-template-columns: 1fr;
    }

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

    .mixture-total {
        grid-template-columns: 1fr;
    }

    .total-item {
        border-right: none;

        border-bottom:
            1px solid
            rgba(255, 255, 255, 0.14);
    }

    .total-item:last-child {
        border-bottom: none;
    }


    /* Method */

    .method-section {
        padding: 45px 22px;
    }

}


/* =====================================================
   SMALL MOBILE
===================================================== */

@media (max-width: 450px) {

    .calculator-section {
        padding: 55px 0 65px;
    }

    .calculator-card,
    .summary-section {
        padding: 25px 18px;
    }

    .card-heading h2 {
        font-size: 28px;
    }

    .species-header {
        padding: 17px 18px;
    }

    .species-body {
        padding: 23px 18px 25px;
    }

    .result-box strong {
        font-size: 21px;
    }

    .total-item {
        padding: 21px;
    }

    .method-section {
        padding: 38px 18px;
    }

}