/* Études de conception — Laboratoire */

.lab-filter {
    width: min(760px, 92%);
    margin: 0 auto clamp(28px, 5vw, 40px);
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
}

.lab-filter__btn {
    appearance: none;
    border: 1px solid var(--border);
    background: var(--bg-surface);
    color: var(--text-muted);
    font: inherit;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.04em;
    padding: 0.45rem 0.85rem;
    border-radius: 999px;
    cursor: pointer;
    transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease;
}

.lab-filter__btn:hover,
.lab-filter__btn:focus-visible {
    border-color: var(--accent);
    color: var(--accent);
    outline: none;
}

.lab-filter__btn.is-active {
    border-color: rgba(34, 211, 238, 0.5);
    color: var(--text);
    background: var(--accent-soft);
}

.lab-status {
    display: inline-block;
    margin: 0 0 0.75rem;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.study-board {
    width: min(760px, 92%);
    margin: clamp(28px, 5vw, 40px) auto 0;
    padding: clamp(22px, 4vw, 32px);
    border: 1px solid var(--border);
    border-radius: 16px;
    background: var(--bg-card);
}

.study-board__title {
    margin: 0 0 1.4rem;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--text-muted);
    text-align: center;
}

.study-block {
    margin: 0 0 1.35rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px solid var(--border);
}

.study-block:last-of-type {
    border-bottom: 0;
    margin-bottom: 0;
    padding-bottom: 0;
}

.study-block h3 {
    margin: 0 0 0.45rem;
    font-size: 0.95rem;
    font-weight: 600;
    letter-spacing: -0.015em;
    color: var(--text);
}

.study-block p {
    margin: 0;
    font-size: 0.95rem;
    line-height: 1.55;
    color: var(--lead-color, var(--text-muted));
}

.study-note {
    display: inline-block;
    margin: 0 0 0.55rem;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--text-muted-soft, var(--text-muted));
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.2rem 0.5rem;
}

.study-journal-link {
    display: inline-block;
    margin-top: 1.4rem;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--accent);
    text-decoration: none;
}

.study-journal-link:hover {
    text-decoration: underline;
    text-underline-offset: 0.18em;
}

.lab-empty {
    width: min(560px, 92%);
    margin: 1.5rem auto 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.project-card__media--placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100%;
    background:
        linear-gradient(145deg, rgba(14, 20, 36, 0.95) 0%, rgba(8, 12, 22, 0.98) 100%);
}

.project-card__placeholder-label {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.page-projects .page-intro h1 {
    letter-spacing: -0.03em;
}

.journal-page {
    max-width: min(720px, 92%);
    margin: 0 auto;
    padding-bottom: clamp(48px, 8vw, 80px);
}

.journal-page .page-intro {
    text-align: center;
    margin-bottom: clamp(28px, 5vw, 40px);
}

.journal-page .page-intro__kicker {
    margin: 0 0 0.75rem;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: -0.01em;
}

.journal-page .page-intro__lead + .page-intro__lead {
    margin-top: 0.65rem;
}

.journal-entry {
    margin: 0 0 1.75rem;
    padding: 1.25rem 1.35rem;
    border-left: 2px solid var(--border);
    background: var(--bg-surface);
    border-radius: 0 12px 12px 0;
}

.journal-entry--next {
    border-left-color: rgba(34, 211, 238, 0.55);
}

.journal-entry__meta {
    margin: 0 0 0.45rem;
    font-size: 0.72rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.journal-entry h2 {
    margin: 0 0 0.55rem;
    font-size: 1.1rem;
    letter-spacing: -0.02em;
}

.journal-entry p {
    margin: 0;
    color: var(--lead-color, var(--text-muted));
    line-height: 1.55;
}

.journal-entry p + p,
.journal-entry p + ul,
.journal-entry ul + p {
    margin-top: 0.75rem;
}

.journal-entry ul {
    margin: 0.75rem 0 0;
    padding: 0 0 0 1.15em;
    color: var(--lead-color, var(--text-muted));
    line-height: 1.65;
}

.journal-entry li {
    margin: 0 0 0.3rem;
}

.journal-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.85rem;
}

.journal-list a {
    display: block;
    padding: 1rem 1.15rem;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg-card);
    text-decoration: none;
    color: inherit;
}

.journal-list a:hover {
    border-color: rgba(34, 211, 238, 0.45);
}

.journal-list strong {
    display: block;
    margin-bottom: 0.25rem;
}