.project-details h2 {
    margin-bottom: 20px;
}

.project-intro {
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--color-ink-soft);
    margin-bottom: 25px;
    padding-left: 15px;
    border-left: 3px solid var(--color-accent);
}

.project-overview h3, .methodology h3, .innovation h3, .results h3, .publications h3 {
    color: var(--color-primary);
    margin-bottom: 15px;
    font-size: 1.25em;
}

.project-overview p, .methodology ul, .innovation p, .results p, .publications p {
    font-size: 1.02em;
    line-height: 1.7;
    color: var(--color-ink-soft);
    margin-bottom: 20px;
}

.methodology ul:not(.feature-grid) {
    list-style-type: disc;
    padding-left: 30px;
}

.methodology li {
    margin-bottom: 10px;
}

.image-gallery {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
    margin-bottom: 25px;
}

.image-gallery img {
    width: 320px;
    max-width: 100%;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease;
    cursor: pointer;
}

.image-gallery img:hover {
    transform: scale(1.03);
}

.publications a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.publications a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

@media (max-width: 600px) {
    .image-gallery img {
        width: 100%;
        max-width: 360px;
    }
}

.innovation p:nth-child(2) {
    font-style: italic;
    color: var(--color-muted);
}

.project-overview, .methodology, .innovation, .results, .publications {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.6s forwards ease-out;
}

.project-overview { animation-delay: 0.1s; }
.methodology { animation-delay: 0.25s; }
.innovation { animation-delay: 0.4s; }
.results { animation-delay: 0.55s; }
.publications { animation-delay: 0.7s; }

/* Fullscreen lightbox modal */
.modal {
    display: none;
    position: fixed;
    z-index: 100;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.9);
}

.modal-content {
    margin: auto;
    display: block;
    width: 80%;
    max-width: 700px;
}

.modal-content, .close-button {
    animation-name: zoom;
    animation-duration: 0.4s;
}

@keyframes zoom {
    from { transform: scale(0); }
    to { transform: scale(1); }
}

.close-button {
    position: absolute;
    top: 15px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
    cursor: pointer;
}

.close-button:hover,
.close-button:focus {
    color: #bbb;
}

/* Tools tag row (badge style) */
.project-tools {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 22px;
}

.project-tool-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-nav);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    color: #fff;
    background-color: var(--color-primary-dark);
    padding: 4px 11px;
    border-radius: 5px;
}

.project-tool-tag i {
    font-size: 0.8em;
    opacity: 0.85;
}

/* Previous / next project navigation */
.project-pager {
    display: flex;
    justify-content: space-between;
    gap: 16px;
    margin-top: 10px;
    padding-top: 22px;
    border-top: 1px solid var(--color-border);
}

.project-pager a {
    display: flex;
    flex-direction: column;
    max-width: 46%;
    text-decoration: none;
    color: var(--color-ink);
    font-weight: 500;
    transition: color 0.25s ease;
}

.project-pager a:hover {
    color: var(--color-primary);
}

.project-pager-label {
    font-family: var(--font-nav);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    color: var(--color-muted);
    margin-bottom: 4px;
}

.project-pager-next {
    text-align: right;
    margin-left: auto;
    align-items: flex-end;
}

@media (max-width: 600px) {
    .project-pager {
        flex-direction: column;
    }
    .project-pager a,
    .project-pager-next {
        max-width: 100%;
        text-align: left;
        align-items: flex-start;
    }
}

/* Hero image at the top of a project page */
.project-hero {
    display: block;
    width: 100%;
    max-height: 420px;
    object-fit: cover;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    margin-bottom: 24px;
    cursor: zoom-in;
}

/* Methodology as numbered steps */
.method-steps {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 18px;
    padding-left: 0;
    margin-bottom: 20px;
}

.method-steps li {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.method-step-number {
    flex-shrink: 0;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: #fff;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.method-step-body strong {
    display: block;
    color: var(--color-ink);
    margin-bottom: 3px;
    font-size: 1.02em;
}

.method-step-body p {
    margin-bottom: 0;
    color: var(--color-ink-soft);
    font-size: 1em;
}

/* Pull-quote callout inside a project section */
.project-callout {
    margin: 4px 0 18px;
    padding: 16px 22px;
    background-color: var(--color-primary-tint);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--radius-md);
    font-size: 1.05rem;
    font-weight: 500;
    font-style: normal;
    color: var(--color-primary-dark);
}

/* Feature grid: for non-sequential lists (e.g. software features, tech stack) */
.feature-grid {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    padding-left: 0;
    margin-bottom: 20px;
}

.feature-grid li {
    background-color: var(--color-paper);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    margin-bottom: 0;
}

.feature-grid strong {
    display: block;
    color: var(--color-primary-dark);
    margin-bottom: 4px;
    font-size: 0.98em;
}

.feature-grid span {
    display: block;
    color: var(--color-ink-soft);
    font-size: 0.92em;
    line-height: 1.55;
}

@media (max-width: 640px) {
    .feature-grid {
        grid-template-columns: 1fr;
    }
}