/**
 * Plain English intro block — project / test pages (Pass 1 architecture tier)
 */
.plain-intro {
    background: rgba(212, 175, 55, 0.07);
    border: 1px solid rgba(212, 175, 55, 0.35);
    border-left: 4px solid #d4af37;
    border-radius: 0 12px 12px 0;
    padding: 22px 26px;
    margin: 0 0 8px;
    max-width: 1000px;
}

.plain-intro-label {
    color: #48f2c2;
    font-size: 0.72rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 14px;
    font-weight: 400;
}

.plain-intro dl {
    margin: 0;
    display: grid;
    gap: 12px;
}

.plain-intro dt {
    color: #d4af37;
    font-size: 13px;
    font-weight: 400;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin: 0;
}

.plain-intro dd {
    color: #ddd;
    font-size: 15px;
    font-weight: 200;
    line-height: 1.65;
    margin: 4px 0 0;
}

.plain-intro dd strong.pass-line {
    color: #64ff64;
}

.plain-intro dd a {
    color: #6ed4ff;
    text-decoration: none;
    border-bottom: 1px solid rgba(110, 212, 255, 0.45);
}

.plain-intro-wrap {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 40px 28px;
}

@media (max-width: 768px) {
    .plain-intro-wrap { padding: 0 24px 24px; }
    .plain-intro { padding: 18px 20px; }
}