/* Separate invitation below the four homepage cards. */
.mc-home .mc-colour-invite {
    display: flex; align-items: center; gap: 20px; width: 100%; min-width: 0;
    margin: -12px 0 30px; padding: 18px 24px; border: 1px solid #dce6eb; border-radius: 0;
    background: #f4f8fa; color: #203b49; font: inherit; line-height: 1.5; text-align: left;
    cursor: pointer; transition: background .2s ease, border-color .2s ease;
}
.mc-home .mc-colour-invite[hidden] { display: none !important; }
.mc-colour-invite-art { display: block; width: 112px; flex: 0 0 112px; border: 1px solid #d6e0e5; background: #fff; overflow: hidden; }
.mc-colour-invite-art > img { display: block; width: 100%; height: auto; object-fit: contain; }
.mc-colour-invite-copy { display: block; flex: 1; min-width: 0; }
.mc-colour-invite-copy strong { display: block; margin: 0 0 3px; font-size: 18px; font-weight: 500; line-height: 1.3; }
.mc-colour-invite-copy > span { display: block; font-size: 13px; font-weight: 400; color: #526c7a; }
.mc-colour-invite-cta { display: inline-flex; align-items: center; gap: 12px; flex-shrink: 0; font-size: 14px; font-weight: 500; color: #1b5d78; }
@media (hover: hover) {
    .mc-home .mc-colour-invite:hover { background: #edf4f7; border-color: #9fb9c5; }
    .mc-colour-invite:hover .mc-colour-invite-cta { text-decoration: underline; text-underline-offset: 4px; }
    .mc-colour-invite-cta svg { display: inline-block; }
}
@media (max-width: 560px) {
    .mc-home .mc-colour-invite { display: grid; grid-template-columns: 80px minmax(0, 1fr); gap: 9px 14px; padding: 16px; margin-bottom: 26px; }
    .mc-colour-invite-art { width: 80px; grid-row: 1 / 3; align-self: center; }
    .mc-colour-invite-copy strong { font-size: 16px; }
    .mc-colour-invite-copy > span { font-size: 12px; }
    .mc-colour-invite-cta { grid-column: 2; font-size: 13px; gap: 10px; }
}
.mc-colour-dialog {
    position: fixed; inset: 0; width: min(660px, calc(100vw - 32px)); max-width: none;
    max-height: calc(100vh - 32px); max-height: calc(100dvh - 32px);
    margin: auto; padding: 0; border: 1px solid #d9e3e8; border-radius: 10px;
    background: #fff; color: #203b49; box-shadow: 0 24px 90px rgba(5,25,38,.28);
    overflow: auto; overscroll-behavior: contain;
}
.mc-colour-dialog:not([open]) { display: none; }
.mc-colour-dialog::backdrop { background: rgba(14,30,41,.58); backdrop-filter: blur(3px); }
.mc-colour-experiment-open { overflow: hidden; }
.mc-colour-dialog-head { position: relative; padding: 30px 32px 24px; }
.mc-colour-dialog-kicker { display: block; padding-right: 36px; margin-bottom: 16px; font-size: 10px; line-height: 1.5; letter-spacing: 1.5px; text-transform: uppercase; color: #547685; }
.mc-colour-dialog .mc-colour-dialog-close {
    display: grid; place-items: center; position: absolute; top: 16px; right: 16px;
    width: 40px; height: 40px; padding: 0; border: 0; border-radius: 50%;
    background: #eef3f5; color: #365666; cursor: pointer;
}
.mc-colour-dialog h2 { margin: 0 0 10px; font-size: 28px; font-weight: 500; line-height: 1.2; letter-spacing: -.4px; color: #203b49; }
.mc-colour-dialog-head p { margin: 0; font-size: 14px; line-height: 1.6; color: #526c7a; }
.mc-colour-illusion { position: relative; display: grid; grid-template-columns: 1fr 1fr; height: 196px; margin: 0 32px; border-radius: 5px; overflow: hidden; }
.mc-colour-field { position: relative; display: grid; place-items: center; transition: background-color .7s ease; }
.mc-colour-field--a { background: #142633; }
.mc-colour-field--b { background: #eef2f4; }
.mc-colour-swatch { display: block; width: 80px; height: 80px; background: rgb(128,128,128); }
.mc-colour-field-label { position: absolute; bottom: 13px; font-size: 11px; font-weight: 500; letter-spacing: 1px; color: #dde5e9; }
.mc-colour-field--b .mc-colour-field-label { color: #4e6570; }
.mc-colour-bridge { position: absolute; top: calc(50% - 40px); left: calc(25% + 39px); width: calc(50% - 78px); height: 80px; background: rgb(128,128,128); opacity: 0; transition: opacity .7s ease; pointer-events: none; }
.mc-colour-dialog[data-revealed="true"] .mc-colour-field { background: #e2e9ec; }
.mc-colour-dialog[data-revealed="true"] .mc-colour-field-label { color: #4e6570; }
.mc-colour-dialog[data-revealed="true"] .mc-colour-bridge { opacity: 1; }
.mc-colour-dialog-body { padding: 24px 32px 22px; text-align: center; }
.mc-colour-dialog .mc-colour-reveal {
    display: inline-flex; align-items: center; justify-content: center; gap: 16px;
    min-width: 190px; min-height: 44px; padding: 11px 20px; margin: 0;
    border: 1px solid #1b5d78; border-radius: 4px; background: #1b5d78; color: #fff;
    font: inherit; font-size: 14px; font-weight: 500; line-height: 1.4; cursor: pointer;
}
.mc-colour-proof { min-height: 96px; padding-top: 20px; font-size: 14px; line-height: 1.6; color: #526c7a; }
.mc-colour-proof:empty::before { content: 'Zaufaj pierwszemu wrażeniu. Sprawdź je jednym kliknięciem.'; font-size: 13px; }
.mc-colour-proof strong { display: block; margin-bottom: 5px; color: #203b49; font-size: 18px; font-weight: 500; }
.mc-colour-proof p { margin: 0; }
.mc-colour-dialog-foot { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px; padding: 18px 32px; border-top: 1px solid #e2e9ed; background: #f8fafb; font-size: 12px; color: #526c7a; }
.mc-colour-dialog-foot a { display: inline-flex; align-items: center; gap: 12px; color: #1b5d78; text-decoration: none; font-size: 13px; font-weight: 500; }
.mc-home .mc-colour-invite:focus-visible, .mc-colour-dialog button:focus-visible, .mc-colour-dialog a:focus-visible { outline: 3px solid #2782aa; outline-offset: 3px; }
@media (max-width: 480px) {
    .mc-colour-dialog { width: calc(100vw - 24px); max-height: calc(100dvh - 24px); }
    .mc-colour-dialog-head { padding: 24px 20px 20px; }
    .mc-colour-dialog h2 { font-size: 24px; padding-right: 8px; }
    .mc-colour-dialog-kicker { max-width: 245px; }
    .mc-colour-illusion { margin: 0 20px; height: 162px; }
    .mc-colour-swatch { width: 64px; height: 64px; }
    .mc-colour-bridge { top: calc(50% - 32px); left: calc(25% + 31px); width: calc(50% - 62px); height: 64px; }
    .mc-colour-dialog-body { padding: 20px 20px 14px; }
    .mc-colour-proof { min-height: 120px; }
    .mc-colour-proof strong { font-size: 17px; }
    .mc-colour-dialog-foot { padding: 16px 20px; }
}
@media (prefers-reduced-motion: reduce) {
    .mc-colour-invite, .mc-colour-field, .mc-colour-bridge { transition: none !important; }
}

/* Three independent demonstrations. Only surrounding context changes. */
.mc-colour-dialog { width: min(760px, calc(100vw - 32px)); }
.mc-colour-dialog [hidden] { display: none !important; }
.mc-colour-dialog-head { padding-top: 24px; padding-bottom: 20px; }
.mc-colour-dialog-kicker { margin-bottom: 14px; }
.mc-colour-tabs { display: flex; gap: 6px; margin: 0 0 20px; padding: 4px; background: #f0f4f6; border-radius: 6px; width: fit-content; }
.mc-colour-dialog .mc-colour-tabs button { padding: 9px 16px; border: 0; border-radius: 4px; font: inherit; font-size: 13px; color: #526c7a; background: transparent; cursor: pointer; }
.mc-colour-dialog .mc-colour-tabs button[aria-selected="true"] { color: #1b5d78; background: #fff; box-shadow: 0 1px 4px #203b491f; }
.mc-colour-proof { min-height: 68px; }
.mc-colour-proof:empty::before { content: 'Zaufaj pierwszemu wrażeniu. Potem sprawdź.'; }
.mc-colour-dialog-body { padding-top: 20px; padding-bottom: 18px; }
.mc-checker { position: relative; width: min(100% - 64px, 430px); margin: auto; background: #fff; }
.mc-checker img { display: block; width: 100%; height: auto; }
.mc-checker-mask { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0; transition: opacity .6s ease; pointer-events: none; }
.mc-colour-dialog[data-revealed="true"] .mc-checker-mask { opacity: 1; }
.mc-colour-credit { margin: 10px 32px 0; font-size: 10px; line-height: 1.5; text-align: center; color: #627783; }
.mc-colour-credit a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }
.mc-bar-illusion { position: relative; display: grid; place-items: center; margin: 0 32px; height: 196px; background: #e2e9ec; isolation: isolate; overflow: hidden; border-radius: 5px; }
.mc-bar-illusion::before { content: ''; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg,#080808,#fafafa); opacity: 1; transition: opacity .6s ease; }
.mc-bar-swatch { width: 78%; height: 48px; background: rgb(128,128,128); }
.mc-colour-dialog[data-revealed="true"] .mc-bar-illusion::before { opacity: 0; }
.mc-colour-explanation { margin: 0 32px 28px; padding-top: 22px; border-top: 1px solid #dce5e9; }
.mc-colour-explanation h3 { margin: 0 0 8px; font-size: 18px; font-weight: 500; color: #203b49; }
.mc-colour-explanation p { margin: 0 0 14px; font-size: 14px; line-height: 1.65; color: #526c7a; }
.mc-colour-hood { display: grid; grid-template-columns: 220px minmax(0,1fr); gap: 22px; align-items: center; margin: 22px 0; }
.mc-colour-hood figure { margin: 0; }
.mc-colour-hood img { width: 100%; height: auto; }
.mc-colour-hood figcaption { font-size: 10px; line-height: 1.5; color: #627783; margin-top: 8px; }
.mc-colour-explanation .mc-colour-note { font-size: 12px; margin-bottom: 0; }
.mc-colour-article { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 16px 18px; background: #eff5f8; color: #1b5d78; font-size: 14px; line-height: 1.5; text-decoration: none; }
.mc-colour-article:hover { background: #e6f0f4; }
@media (max-width: 560px) {
 .mc-colour-dialog { width: calc(100vw - 24px); }
 .mc-colour-tabs { gap: 2px; }
 .mc-colour-dialog .mc-colour-tabs button { padding: 9px 12px; }
 .mc-colour-hood { grid-template-columns: 1fr; gap: 16px; }
 .mc-colour-hood figure { max-width: 280px; margin: auto; }
 .mc-colour-explanation { margin: 0 20px 24px; }
 .mc-checker { width: calc(100% - 40px); max-width: 400px; }
 .mc-colour-credit { margin-left: 20px; margin-right: 20px; }
 .mc-bar-illusion { margin: 0 20px; height: 162px; }
 .mc-colour-proof { min-height: 88px; }
 .mc-colour-proof strong { font-size: 17px; }
}
@media (prefers-reduced-motion: reduce) { .mc-checker-mask, .mc-bar-illusion::before { transition: none !important; } }

/* Neural illustration: visible subject, clear copy, compact category transition. */
.mc-home .mc-colour-invite {
 position: relative;
 isolation: isolate;
 overflow: hidden;
 margin-bottom: 0;
 background: #f0f7fb;
}
.mc-home .mc-colour-invite::before {
 content: '';
 position: absolute;
 z-index: -1;
 pointer-events: none;
 top: 0;
 bottom: 0;
 left: calc(58% - 330px);
 width: 500px;
 background: url('../images/colour/mind-neural-v1.webp') center / cover no-repeat;
 -webkit-mask-image: linear-gradient(90deg, transparent, #000 23%, #000 86%, transparent);
 mask-image: linear-gradient(90deg, transparent, #000 23%, #000 86%, transparent);
}
.mc-home .mc-colour-invite-copy { max-width: 470px; }
.mc-home .mc-colour-invite-cta { margin-left: auto; }
.mc-home .mc-colour-invite + .mc-section-head { margin-top: 16px; margin-bottom: 14px; }
@media (hover: hover) {
 .mc-home .mc-colour-invite:hover { background-color: #eaf3f8; }
}
@media (min-width: 561px) and (max-width: 1000px) {
 .mc-home .mc-colour-invite { flex-wrap: wrap; }
 .mc-home .mc-colour-invite-copy { max-width: calc(100% - 132px); }
 .mc-home .mc-colour-invite-cta { flex-basis: 100%; margin-left: 132px; }
 .mc-home .mc-colour-invite::before { width: 350px; height: 115px; top: auto; left: auto; right: -10px; }
}
@media (max-width: 560px) {
 .mc-home .mc-colour-invite { padding-bottom: 18px; row-gap: 16px; }
 .mc-home .mc-colour-invite-copy { max-width: none; }
 .mc-home .mc-colour-invite-art { grid-row: 1; }
 .mc-home .mc-colour-invite-cta { grid-column: 1 / -1; margin: 0; min-height: 38px; align-self: end; }
 .mc-home .mc-colour-invite::before { top: auto; bottom: 0; left: auto; right: -5px; width: 220px; height: 78px; }
}