/* ==============================
   PORTRAIT PHOTOGRAPHY CASE STUDY
============================== */

/* PROJECT INTRO */

.portrait-project-intro {
    width: 100%;
    max-width: 900px;
    margin: 0 auto clamp(65px, 9vw, 100px);
}

.portrait-eyebrow {
    margin: 0 0 16px;
    font-size: 11px;
    letter-spacing: 0.16em;
    font-weight: 600;
}

/* TITLE */

.portrait-project-intro h1 {
    margin: 0;
    font-family: "Playfair Display", Georgia, serif;
    font-size: clamp(42px, 7vw, 82px);
    line-height: 1.02;
    font-weight: 500;
    color: var(--colour-black, #171717);
}

.portrait-project-intro h1 span {
    color: var(--colour-black);
}

/* SECTION 1: PROJECT DETAILS */

.portrait-project-details {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 24px;
    margin: 42px 0 48px;
    padding: 22px 0;
    border-top: 1px solid rgba(0, 0, 0, 0.25);
    border-bottom: 1px solid rgba(0, 0, 0, 0.25);
}

.portrait-detail-label {
    display: block;
    margin-bottom: 8px;
    font-size: 10px;
    letter-spacing: 0.13em;
    opacity: 0.65;
}

.portrait-project-details p {
    margin: 0;
    font-size: 13px;
    line-height: 1.5;
}

/* SECTION 2: PROJECT OVERVIEW */

.portrait-overview {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 35px;
    align-items: start;
    margin-bottom: 48px;
}

.portrait-page .portrait-overview h2 {
    margin: 5px 0 0;
    font-family: "Playfair Display", Georgia, serif;
    font-size: 22px;
    font-weight: 500;
    letter-spacing: 0.12em;
}

.portrait-overview p {
    margin: 0;
    max-width: 650px;
    font-size: 15px;
    line-height: 1.8;
}

/* SECTION 3: PROJECT NOTES */

.portrait-project-notes {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 35px;
    padding-top: 28px;
    border-top: 1px solid rgba(0, 0, 0, 0.25);
}

.portrait-project-notes h3 {
    margin: 0 0 12px;
    font-family: "Playfair Display", Georgia, serif;
    font-size: 17px;
    font-weight: 500;
    letter-spacing: 0.12em;
}

.portrait-project-notes p {
    margin: 0;
    font-size: 14px;
    line-height: 1.75;
}

/* FEATURED IMAGE */

.portrait-feature-art {
    width: 100%;
    max-width: 900px;
    margin: 0 auto clamp(75px, 11vw, 135px);
    padding: 0;
}

.portrait-feature-art img {
    display: block;
    width: 100%;
    height: auto;
}

/* ------------------------------
   SHARED SECTIONS
------------------------------ */

.portrait-process,
.portrait-comparisons,
.portrait-final-gallery {
    width: min(1100px, 90%);
    margin: 0 auto;
    padding: clamp(55px, 8vw, 100px) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.25);
}

.portrait-page h2,
.portrait-page h3 {
    font-family: "Playfair Display", serif;
    font-weight: 500;
    letter-spacing: 0.12em;
}

.portrait-page h2 {
    margin: 0 0 24px;
    font-size: clamp(20px, 2vw, 27px);
}

.portrait-page h3 {
    margin: 0 0 8px;
    font-size: 17px;
}


/* ------------------------------
   PROCESS
------------------------------ */

.portrait-process {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: clamp(35px, 6vw, 80px);
    align-items: center;
}

.portrait-process-copy p {
    margin: 0;
    max-width: 460px;
    font-size: 16px;
    line-height: 1.8;
}

.portrait-process-images {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 15px;
}


/* ------------------------------
   IMAGE STYLING
------------------------------ */

.portrait-image-placeholder,
.comparison-image-placeholder,
.final-image-placeholder {
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
    background: transparent;
    border: none;
    outline: none;
    box-shadow: none;
}

.portrait-image-placeholder img,
.comparison-image-placeholder img,
.final-image-placeholder img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ------------------------------
   BEFORE & AFTER
------------------------------ */

.portrait-comparisons > h2 {
    margin-bottom: 35px;
}

.comparison-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 40px;
    align-items: start;
}

.comparison {
    min-width: 0;
    width: 100%;
}

.comparison + .comparison {
    padding-left: 0;
    border-left: none;
}

.comparison-images {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 6px;
    width: 100%;
}

.comparison-image-placeholder {
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
}

.comparison-image-placeholder img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.comparison-labels {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    margin-top: 12px;
    text-align: center;
    font-size: 10px;
    letter-spacing: 0.18em;
}

.comparison-caption {
    margin: 20px 0 0;
    text-align: center;
    font-family: "Playfair Display", serif;
    font-style: italic;
    font-size: 14px;
    line-height: 1.5;
}

/* ------------------------------
   FINAL GALLERY
------------------------------ */

.final-gallery-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 15px;
}

.final-image-placeholder {
    width: 100%;
    aspect-ratio: 4 / 3;
    overflow: hidden;
}

/* Match the black-and-blue case-study text palette. */
.portrait-project-intro h1 {
    color: var(--colour-black);
}

.portrait-project-intro h1 span {
    color: var(--colour-accent);
}

/* All remaining page text: black */
.portrait-page p,
.portrait-page h2,
.portrait-page h3,
.portrait-page .portrait-detail-label,
.portrait-page .comparison-label,
.portrait-page .comparison-labels {
    color: var(--colour-black);
}

/* Detail labels should not appear faded */
.portrait-detail-label {
    opacity: 1;
}




/* ------------------------------
   MOBILE
------------------------------ */

@media (max-width: 800px) {

    .portrait-process {
        grid-template-columns: 1fr;
    }

    .portrait-project-details {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        row-gap: 25px;
    }

    .portrait-project-details {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        row-gap: 25px;
    }

    .portrait-overview {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    .portrait-project-notes {
        grid-template-columns: 1fr;
        gap: 28px;
    }

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

    .comparison + .comparison {
        padding: 40px 0 0;
        border-left: none;
        border-top: 1px solid rgba(0, 0, 0, 0.25);
    }
}

@media (max-width: 600px) {

    .portrait-process-images {
        gap: 8px;
    }

    .final-gallery-grid {
        grid-template-columns: 1fr;
    }

    .final-image-placeholder {
        aspect-ratio: 4 / 3;
    }
}