/* ==========================================================
   GALLOP DESIGN — PAINT COVERAGE CALCULATOR
   STAGING UI
   ========================================================== */

.paint-coverage-calculator-tool {
    padding: 34px 0 72px;
}

.paint-coverage-calculator-tool > .container {
    max-width: 1360px;
}

/* HERO */

.paint-coverage-hero {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 32px;
    padding: 40px 44px;
    margin-bottom: 30px;
}

.paint-coverage-hero .tool-hero-copy {
    max-width: 900px;
}

.paint-coverage-hero h1 {
    margin: 8px 0 16px;
    font-size: clamp(44px, 5vw, 68px);
    line-height: 1.04;
}

.paint-coverage-hero p {
    max-width: 820px;
    margin: 0;
    font-size: 18px;
    line-height: 1.7;
}

.accuracy-badge {
    flex: 0 0 auto;
    padding: 10px 15px;
    border: 1px solid currentColor;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .12em;
    white-space: nowrap;
}

/* ALERT */

.calculator-alert {
    margin-bottom: 24px;
    padding: 18px 20px;
    border: 1px solid currentColor;
    border-radius: 14px;
    line-height: 1.6;
}

.calculator-alert strong {
    display: block;
    margin-bottom: 4px;
}

/* MAIN CALCULATOR */

.calculator-panel {
    margin-bottom: 30px;
}

.calculator-section {
    padding: 30px;
    margin-bottom: 22px;
    border: 1px solid rgba(127, 127, 127, .22);
    border-radius: 20px;
    background: rgba(255, 255, 255, .02);
}

.section-heading {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 24px;
    margin-bottom: 24px;
}

.section-heading h2 {
    margin: 6px 0 0;
    font-size: clamp(24px, 3vw, 34px);
    line-height: 1.15;
}

.mode-selector {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
}

.mode-selector label {
    display: block;
    cursor: pointer;
}

.mode-selector input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.mode-selector span {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 54px;
    padding: 12px 16px;
    border: 1px solid rgba(127, 127, 127, .35);
    border-radius: 12px;
    font-weight: 700;
    text-align: center;
    transition:
        transform .15s ease,
        border-color .15s ease,
        background .15s ease;
}

.mode-selector input:checked + span {
    border-color: currentColor;
    background: rgba(127, 127, 127, .10);
}

.mode-selector label:hover span {
    transform: translateY(-1px);
}

.formula-display {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    margin-top: 18px;
    padding: 14px 16px;
    border-radius: 12px;
    background: rgba(127, 127, 127, .08);
}

.formula-display span {
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.formula-display strong {
    font-size: 16px;
    text-align: right;
}

/* FORM */

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.form-field {
    min-width: 0;
}

.form-field label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    font-weight: 700;
}

.form-field input,
.form-field select {
    width: 100%;
    min-height: 50px;
    padding: 11px 13px;
    border: 1px solid rgba(127, 127, 127, .34);
    border-radius: 10px;
    background: transparent;
    color: inherit;
    font: inherit;
}

.form-field input:focus,
.form-field select:focus {
    outline: 2px solid currentColor;
    outline-offset: 2px;
}

.field-with-unit {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(115px, auto);
    gap: 10px;
}

.unit-suffix {
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 72px;
    min-height: 50px;
    padding: 10px 14px;
    border: 1px solid rgba(127, 127, 127, .34);
    border-radius: 10px;
    font-weight: 700;
}

.mode-section[hidden] {
    display: none !important;
}

/* ACTIONS */

.calculator-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin: 6px 0 34px;
}

.calculator-actions .button {
    min-width: 180px;
    text-align: center;
}

/* INFORMATION CARDS */

.calculator-info-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    margin-bottom: 32px;
}

.info-card {
    padding: 24px;
    border: 1px solid rgba(127, 127, 127, .22);
    border-radius: 18px;
}

.info-card h2 {
    margin: 6px 0 10px;
    font-size: 22px;
}

.info-card p {
    margin: 0;
    line-height: 1.65;
}

/* RESULT REPORT */

.paint-report {
    padding: 30px;
    border: 1px solid rgba(127, 127, 127, .25);
    border-radius: 22px;
}

.report-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 24px;
}

.report-header h2 {
    margin: 6px 0 0;
    font-size: clamp(28px, 3vw, 38px);
}

.result-highlight-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 18px;
}

.result-highlight {
    min-width: 0;
    padding: 20px;
    border: 1px solid rgba(127, 127, 127, .24);
    border-radius: 16px;
}

.result-highlight span {
    display: block;
    margin-bottom: 8px;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.result-highlight strong {
    display: block;
    overflow-wrap: anywhere;
    font-size: clamp(20px, 2.4vw, 30px);
    line-height: 1.18;
}

.primary-result {
    grid-column: span 1;
}

.report-grid {
    display: grid;
    grid-template-columns: minmax(0, .8fr) minmax(0, 1.2fr);
    gap: 18px;
    margin-top: 20px;
}

.report-card {
    padding: 22px;
    border: 1px solid rgba(127, 127, 127, .22);
    border-radius: 16px;
}

.report-card h3 {
    margin: 0 0 14px;
    font-size: 20px;
}

.formula-result {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
    line-height: 1.55;
}

.result-list {
    margin: 0;
}

.result-list > div {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 18px;
    padding: 10px 0;
    border-bottom: 1px solid rgba(127, 127, 127, .16);
}

.result-list > div:last-child {
    border-bottom: 0;
}

.result-list dt {
    text-transform: capitalize;
}

.result-list dd {
    margin: 0;
    font-weight: 700;
    text-align: right;
}

.calculation-disclosure {
    margin-top: 22px;
    padding: 16px 18px;
    border: 1px solid rgba(127, 127, 127, .22);
    border-radius: 14px;
    line-height: 1.6;
}

.calculation-disclosure strong {
    display: inline-block;
    margin-right: 8px;
    font-size: 12px;
    letter-spacing: .10em;
}

/* RESPONSIVE */

@media (max-width: 980px) {
    .paint-coverage-hero {
        flex-direction: column;
    }

    .mode-selector {
        grid-template-columns: 1fr;
    }

    .calculator-info-grid {
        grid-template-columns: 1fr;
    }

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

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

@media (max-width: 720px) {
    .paint-coverage-calculator-tool {
        padding-top: 20px;
        padding-bottom: 48px;
    }

    .paint-coverage-hero,
    .calculator-section,
    .paint-report {
        padding: 22px;
    }

    .paint-coverage-hero h1 {
        font-size: clamp(36px, 11vw, 52px);
    }

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

    .field-with-unit {
        grid-template-columns: minmax(0, 1fr) 110px;
    }

    .formula-display {
        align-items: flex-start;
        flex-direction: column;
    }

    .formula-display strong {
        text-align: left;
    }

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

    .calculator-actions .button {
        width: 100%;
    }

    .report-header {
        flex-direction: column;
    }
}

@media (max-width: 440px) {
    .paint-coverage-hero,
    .calculator-section,
    .paint-report,
    .info-card {
        padding: 18px;
    }

    .field-with-unit {
        grid-template-columns: 1fr;
    }

    .unit-suffix {
        justify-content: flex-start;
    }
}

/* PRINT */

@media print {
    .no-print,
    .paint-coverage-hero,
    .calculator-panel,
    .calculator-info-grid {
        display: none !important;
    }

    .paint-coverage-calculator-tool {
        padding: 0;
    }

    .paint-coverage-calculator-tool > .container {
        max-width: none;
    }

    .paint-report {
        border: 0;
        padding: 0;
    }

    .result-highlight-grid,
    .report-grid {
        break-inside: avoid;
    }
}

/* ==========================================================
   GALLOP DESIGN — PAINT COVERAGE CALCULATOR
   BLACK / GOLD / WHITE VISUAL ADAPTER

   VISUAL ONLY.
   Audited geometry, responsive rules, print rules,
   calculations and result structure remain authoritative.
   ========================================================== */


/* PAGE CANVAS */

.paint-coverage-calculator-tool {
    --pc-black: #0B0B0B;
    --pc-panel: #151515;
    --pc-deep: #070707;
    --pc-gold: #D4A017;
    --pc-gold-light: #E5B62F;
    --pc-cream: #FFF8E7;
    --pc-white: #FFFFFF;
    --pc-light: #E7E7E7;

    background:
        radial-gradient(
            circle at 10% 3%,
            rgba(255,255,255,.28),
            transparent 26%
        ),
        radial-gradient(
            circle at 93% 19%,
            rgba(255,248,231,.24),
            transparent 25%
        ),
        linear-gradient(
            135deg,
            #D9AD38 0%,
            #EBCB68 30%,
            #F3DB8B 54%,
            #E6C04E 77%,
            #C9961E 100%
        );

    color: #0B0B0B;
}


/* HERO */

.paint-coverage-hero {
    background:
        linear-gradient(
            135deg,
            #0B0B0B 0%,
            #151515 100%
        );

    color: #FFFFFF;

    border:
        1px solid rgba(212,160,23,.76);

    box-shadow:
        0 18px 44px rgba(0,0,0,.22);
}

.paint-coverage-hero h1 {
    color: #FFFFFF;
}

.paint-coverage-hero p {
    color: #E7E7E7;
}

.paint-coverage-hero .eyebrow {
    color: #E5B62F;
}


/* ACCURACY BADGE */

.accuracy-badge {
    background:
        linear-gradient(
            135deg,
            #D4A017,
            #E5B62F
        );

    color: #0B0B0B;

    border:
        1px solid rgba(255,255,255,.20);

    box-shadow:
        0 8px 22px rgba(0,0,0,.18);
}


/* CALCULATOR ALERT */

.calculator-alert {
    background: #FFF8E7;
    color: #0B0B0B;

    border-color:
        rgba(212,160,23,.64);
}

.calculator-alert strong {
    color: #8A6500;
}


/* CALCULATOR SECTIONS */

.calculator-section {
    background:
        linear-gradient(
            180deg,
            #FFFFFF 0%,
            #FFF8E7 100%
        );

    color: #0B0B0B;

    border-color:
        rgba(212,160,23,.62);

    box-shadow:
        0 14px 34px rgba(0,0,0,.12);
}

.section-heading h2 {
    color: #0B0B0B;
}

.section-heading .eyebrow {
    color: #9A7100;
}


/* MODE SELECTOR */

.mode-selector span {
    background: #FFFFFF;
    color: #0B0B0B;

    border:
        1px solid rgba(212,160,23,.52);
}

.mode-selector input:checked + span {
    background:
        linear-gradient(
            135deg,
            #0B0B0B,
            #231C0E
        );

    color: #FFFFFF;

    border-color: #D4A017;

    box-shadow:
        0 8px 20px rgba(0,0,0,.16);
}

.mode-selector label:hover span {
    border-color: #D4A017;
}


/* FORMULA DISPLAY */

.formula-display {
    background:
        linear-gradient(
            135deg,
            #151515,
            #231C0E
        );

    color: #FFFFFF;

    border:
        1px solid rgba(212,160,23,.64);

    box-shadow:
        inset 0 0 0 1px rgba(255,255,255,.04);
}

.formula-display span {
    color: #E7E7E7;
}

.formula-display strong {
    color: #E5B62F;
}


/* FORM FIELDS */

.form-field label {
    color: #0B0B0B;
}

.form-field input,
.form-field select {
    background: #FFFFFF;
    color: #0B0B0B;

    border-color:
        rgba(201,150,30,.72);
}

.form-field input:focus,
.form-field select:focus {
    outline-color: #D4A017;

    box-shadow:
        0 0 0 3px rgba(212,160,23,.14);
}

.unit-suffix {
    background:
        linear-gradient(
            135deg,
            #151515,
            #231C0E
        );

    color: #E5B62F;

    border:
        1px solid rgba(212,160,23,.68);
}


/* ACTION BUTTONS */

.calculator-actions .calculate-button {
    background:
        linear-gradient(
            135deg,
            #0B0B0B,
            #231C0E
        );

    color: #FFFFFF;

    border:
        1px solid #D4A017;

    box-shadow:
        0 8px 20px rgba(0,0,0,.17);
}

.calculator-actions .button-secondary {
    background: #FFFFFF;
    color: #0B0B0B;

    border:
        1px solid rgba(212,160,23,.72);
}


/* INFORMATION CARDS */

.info-card {
    background:
        linear-gradient(
            145deg,
            #0B0B0B,
            #151515
        );

    color: #E7E7E7;

    border:
        1px solid rgba(212,160,23,.68);

    box-shadow:
        0 14px 34px rgba(0,0,0,.18);
}

.info-card .eyebrow {
    color: #E5B62F;
}

.info-card h2 {
    color: #FFFFFF;
}

.info-card p {
    color: #E7E7E7;
}


/* RESULT REPORT */

.paint-report {
    background:
        linear-gradient(
            145deg,
            #0B0B0B,
            #151515
        );

    color: #E7E7E7;

    border-color:
        rgba(212,160,23,.74);

    box-shadow:
        0 20px 48px rgba(0,0,0,.23);
}

.report-header h2 {
    color: #FFFFFF;
}

.report-header .eyebrow {
    color: #E5B62F;
}

.paint-report .print-button {
    background:
        linear-gradient(
            135deg,
            #D4A017,
            #E5B62F
        );

    color: #0B0B0B;

    border:
        1px solid rgba(255,255,255,.16);
}


/* RESULT HIGHLIGHTS */

.result-highlight {
    background:
        linear-gradient(
            180deg,
            #FFFFFF,
            #FFF8E7
        );

    color: #0B0B0B;

    border-color:
        rgba(212,160,23,.62);
}

.result-highlight span {
    color: #806A3D;
}

.result-highlight strong {
    color: #0B0B0B;
}

.primary-result {
    background:
        linear-gradient(
            135deg,
            #D4A017,
            #E5B62F
        );

    color: #0B0B0B;

    border-color:
        rgba(11,11,11,.22);

    box-shadow:
        0 10px 24px rgba(212,160,23,.18);
}

.primary-result span,
.primary-result strong {
    color: #0B0B0B;
}


/* REPORT CARDS */

.report-card {
    background:
        linear-gradient(
            180deg,
            #FFFFFF,
            #FFF8E7
        );

    color: #0B0B0B;

    border-color:
        rgba(212,160,23,.62);
}

.report-card h3 {
    color: #0B0B0B;
}

.formula-result {
    color: #8A6500;
}


/* RESULT LIST */

.result-list > div {
    border-bottom-color:
        rgba(212,160,23,.24);
}

.result-list dt {
    color: #665A44;
}

.result-list dd {
    color: #0B0B0B;
}


/* CALCULATION DISCLOSURE */

.calculation-disclosure {
    background:
        rgba(212,160,23,.10);

    color: #FFF8E7;

    border:
        1px solid rgba(212,160,23,.42);
}

.calculation-disclosure strong {
    color: #E5B62F;
}


/* =========================================================
   PAINT FORMULA SCALER SEO CONTENT — FULL-WIDTH BLACK / GOLD
   ========================================================= */

.paint-coverage-calculator-tool > .tool-intro,
.paint-coverage-calculator-tool > .calculator-layout,
.paint-coverage-calculator-tool > .calculator-report,
.paint-coverage-calculator-tool > .calculator-content {
    width: min(1120px, calc(100% - 32px));
    margin-inline: auto;
    box-sizing: border-box;
}

.paint-coverage-calculator-tool .paint-coverage-seo-content {
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 68px 24px 72px;
    box-sizing: border-box;
    border: 0;
    border-radius: 0;
    background: linear-gradient(145deg, #0B0B0B 0%, #151515 100%);
    color: #FFFFFF;
}

.paint-coverage-calculator-tool .paint-coverage-seo-content > * {
    width: min(1120px, 100%);
    max-width: 1120px;
    margin-left: auto;
    margin-right: auto;
}

.paint-coverage-calculator-tool .paint-coverage-seo-intro {
    max-width: 860px;
    margin: 0 auto 42px;
    text-align: center;
}

.paint-coverage-calculator-tool .paint-coverage-seo-eyebrow {
    display: block;
    margin: 0 0 16px;
    color: #E5B62F;
    font-size: 0.82rem;
    font-weight: 900;
    letter-spacing: 0.20em;
    text-transform: uppercase;
    text-align: center;
}

.paint-coverage-calculator-tool .paint-coverage-seo-intro h2 {
    margin: 0 0 18px;
    color: #FFFFFF;
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.08;
    text-align: center;
}

.paint-coverage-calculator-tool .paint-coverage-seo-intro p {
    max-width: 820px;
    margin: 0 auto;
    color: #FFFFFF;
    line-height: 1.75;
    text-align: center;
}

.paint-coverage-calculator-tool .paint-coverage-seo-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
}

.paint-coverage-calculator-tool .paint-coverage-seo-card {
    padding: 30px;
    border: 1px solid #D4A017;
    border-radius: 16px;
    background: linear-gradient(145deg, #101010 0%, #171717 100%);
    color: #FFFFFF;
}

.paint-coverage-calculator-tool .paint-coverage-seo-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    margin-bottom: 22px;
    padding: 0;
    border-radius: 50%;
    background: #E5B62F;
    color: #0B0B0B;
    font-weight: 900;
}

.paint-coverage-calculator-tool .paint-coverage-seo-card h3 {
    margin: 0 0 14px;
    color: #E5B62F;
    font-size: 1.2rem;
    line-height: 1.3;
}

.paint-coverage-calculator-tool .paint-coverage-seo-card p,
.paint-coverage-calculator-tool .paint-coverage-seo-summary p {
    color: #FFFFFF;
    line-height: 1.7;
}

.paint-coverage-calculator-tool .paint-coverage-seo-formula {
    margin: 18px 0 0;
    padding: 14px 16px;
    border: 1px solid #D4A017;
    border-radius: 10px;
    background: #0B0B0B;
    color: #FFFFFF;
    font-weight: 700;
    line-height: 1.5;
}

.paint-coverage-calculator-tool .paint-coverage-seo-summary {
    margin-top: 24px;
    padding: 28px 30px;
    border: 1px solid #D4A017;
    border-radius: 16px;
    background: linear-gradient(145deg, #101010 0%, #171717 100%);
}

.paint-coverage-calculator-tool .paint-coverage-seo-summary h3 {
    margin: 0 0 14px;
    color: #E5B62F;
}

@media (max-width: 800px) {
    .paint-coverage-calculator-tool .paint-coverage-seo-content {
        padding: 48px 18px 52px;
    }

    .paint-coverage-calculator-tool .paint-coverage-seo-grid {
        grid-template-columns: 1fr;
    }

    .paint-coverage-calculator-tool .paint-coverage-seo-card {
        padding: 24px;
    }
}

@media (max-width: 640px) {
    .paint-coverage-calculator-tool > .tool-intro,
    .paint-coverage-calculator-tool > .calculator-layout,
    .paint-coverage-calculator-tool > .calculator-report,
    .paint-coverage-calculator-tool > .calculator-content {
        width: calc(100% - 20px);
    }

    .paint-coverage-calculator-tool .paint-coverage-seo-content {
        padding-left: 16px;
        padding-right: 16px;
    }

    .paint-coverage-calculator-tool .paint-coverage-seo-number {
        width: 46px;
        height: 46px;
    }
}

@media print {
    .paint-coverage-calculator-tool .paint-coverage-seo-content,
    .paint-coverage-calculator-tool .paint-coverage-seo-card,
    .paint-coverage-calculator-tool .paint-coverage-seo-summary,
    .paint-coverage-calculator-tool .paint-coverage-seo-formula {
        background: #FFFFFF !important;
        color: #000000 !important;
        border-color: #999999 !important;
    }

    .paint-coverage-calculator-tool .paint-coverage-seo-intro h2,
    .paint-coverage-calculator-tool .paint-coverage-seo-intro p,
    .paint-coverage-calculator-tool .paint-coverage-seo-card p,
    .paint-coverage-calculator-tool .paint-coverage-seo-summary p {
        color: #000000 !important;
    }
}