.subnav-wrap {
    position: sticky;
    top: 72px;
    z-index: 15;
    padding: 0.75rem 0 1.5rem;
    background: linear-gradient(180deg, rgba(246, 243, 239, 0.96), rgba(246, 243, 239, 0.75));
    backdrop-filter: blur(8px);
}

.subnav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.9rem;
}

.subnav a {
    padding: 0.7rem 1rem;
    border: 1px solid rgba(107, 15, 26, 0.18);
    border-radius: 999px;
    background: #ffffff;
    color: var(--accent);
    font-weight: 700;
    box-shadow: 0 8px 22px rgba(36, 20, 14, 0.06);
}

.subnav a:hover,
.subnav a:focus-visible {
    background: rgba(107, 15, 26, 0.06);
}

.trajectory-panel {
    padding: 2rem;
    border: 1px solid rgba(107, 15, 26, 0.1);
    border-radius: 32px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(255, 249, 245, 0.98)),
        #ffffff;
    box-shadow: 0 18px 42px rgba(36, 20, 14, 0.08);
}

.trajectory-intro {
    max-width: 920px;
    margin: 0 auto 2rem;
    padding: 0 0 1.6rem;
    text-align: center;
    border-bottom: 1px solid rgba(107, 15, 26, 0.12);
}

.trajectory-intro h2 {
    margin: 0 0 0.8rem;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
}

.trajectory-intro p:last-child {
    margin: 0;
    font-size: 1.08rem;
    line-height: 1.8;
}

.trajectory-topics {
    display: grid;
    gap: 1.4rem;
}

.track-block {
    padding: 1.8rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 10px 30px rgba(36, 20, 14, 0.06);
}

.track-block h2 {
    margin: 0 0 0.8rem;
    color: var(--accent);
    font-size: 1.7rem;
}

.track-block p {
    margin: 0;
    line-height: 1.8;
}

.course-cards {
    margin-top: 1.2rem;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1rem;
}

.course-cards-single {
    grid-template-columns: minmax(0, 560px);
}

.mini-course-card {
    padding: 1rem 1rem 1.1rem;
    border: 1px solid rgba(107, 15, 26, 0.12);
    border-radius: 18px;
    background: #fffdfb;
    box-shadow: 0 8px 20px rgba(36, 20, 14, 0.05);
}

.diploma-link {
    display: block;
    width: calc(100% + 2rem);
    margin: -1rem -1rem 1rem;
    overflow: hidden;
    border-radius: 18px 18px 0 0;
    background: transparent;
}

.diploma-link img {
    display: block;
    width: 100%;
    height: auto;
}

#tecnologia-ia .diploma-link {
    width: 72%;
    margin: 0 auto 1rem;
    border-radius: 12px;
}

.mini-course-card h3 {
    margin: 0 0 0.3rem;
    font-size: 1.05rem;
    color: var(--text);
}

.mini-course-card p {
    margin: 0;
    line-height: 1.6;
    font-size: 0.96rem;
}

.mini-course-card .course-place {
    margin-bottom: 0.45rem;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.mini-certificate {
    display: grid;
    place-items: center;
    min-height: 170px;
    margin-bottom: 0.9rem;
    border: 2px dashed rgba(107, 15, 26, 0.28);
    border-radius: 16px;
    background: linear-gradient(180deg, #fffefe, #f7f0ea);
    color: var(--accent);
    font-size: 0.95rem;
    font-weight: 700;
    text-align: center;
    padding: 1rem;
}

@media (max-width: 900px) {
    .course-cards {
        grid-template-columns: 1fr;
    }

    .trajectory-panel {
        padding: 1.2rem;
        border-radius: 24px;
    }

    .subnav-wrap {
        top: 108px;
    }

    #tecnologia-ia .diploma-link {
        width: 82%;
    }

}

@media (max-width: 640px) {
    .subnav-wrap {
        position: static;
        padding: 0.5rem 0 1.1rem;
    }

    .subnav {
        display: grid;
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }

    .subnav a {
        width: 100%;
        padding: 0.85rem 1rem;
        text-align: center;
        line-height: 1.35;
    }
}