/* =========================
   Powertrain Hero
========================= */

.powertrain-hero {
    width: 100%;
    min-height: 350px;

    display: flex;
    align-items: center;

    background:
        linear-gradient(
            to right,
            rgba(20, 43, 64, 0.55),
            rgba(20, 43, 64, 0.92)
        ),
        url("Exp-img/FSAE/fsae_car.jpg");

    background-size: cover;
    background-position: center;
}

.powertrain-hero-content {
    width: 1100px;
    margin: auto;
    padding: 80px 40px;
    color: white;
}

.powertrain-hero-content p:first-child {
    font-size: 16px;
    letter-spacing: 2px;
    margin-bottom: 15px;
    color: #cfcfcf;
}

.powertrain-hero-content h1 {
    font-size: 60px;
    margin: 0 0 10px;
}

.powertrain-hero-content h2 {
    font-size: 28px;
    font-weight: normal;
    margin: 0 0 25px;
}

.powertrain-hero-content p:last-child {
    max-width: 650px;
    font-size: 18px;
    line-height: 1.6;
    color: #cfcfcf;
}


/* =========================
   Overview
========================= */

.powertrain-overview {
    background-color: #ffffff;
    padding: 75px 30px 0 75px;
    display: flex;
    width: 1300px;
    align-items: center;
    justify-content: center;
    margin: 0 auto;
    gap: 75px;
}

.powertrain-overview-content {
    max-width: 1100px;
    margin: auto;
}

.powertrain-overview h2 {
    font-size: 38px;
    color: #142B40;
    margin-bottom: 25px;
}

.powertrain-overview p {
    max-width: 950px;
    font-size: 17px;
    line-height: 1.7;
    color: #444444;
    margin-bottom: 20px;
}

.powertrain-overview img {
    height: 400px;
    width: auto;
    border-radius: 8px;
}


/* =========================
   Main Sections
========================= */

.powertrain-section {
    max-width: 1100px;
    margin: 0 auto;

    padding: 80px 0;

    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;

    align-items: center;
}

.powertrain-section.reverse {
    background-color: #f5f7f9;
    max-width: none;
    padding-left: calc((100% - 1100px) / 2);
    padding-right: calc((100% - 1100px) / 2);
}

.powertrain-text {
    min-width: 0;
}

.section-label {
    color: #188ce6;
    font-size: 14px;
    letter-spacing: 2px;
    font-weight: bold;
    margin-bottom: 10px;
}

.powertrain-text h2 {
    font-size: 34px;
    color: #142B40;
    margin: 0 0 25px;
}

.powertrain-text ul {
    padding-left: 22px;
}

.powertrain-text li {
    font-size: 16px;
    line-height: 1.6;
    color: #444444;
    margin-bottom: 15px;
}

.powertrain-image img {
    width: 100%;
    max-height: 350px;
    object-fit: cover;
    border-radius: 6px;
    display: block;
    margin-top: 120px;
}


/* =========================
   Results
========================= */

.powertrain-results {
    background-color: #ffffff;

    padding: 100px 30px;
}

.powertrain-results > .section-label,
.powertrain-results > h2 {
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

.powertrain-results h2 {
    font-size: 38px;
    color: #142B40;
    margin-top: 0;
    margin-bottom: 45px;
}

.results-grid {
    max-width: 1100px;
    margin: auto;

    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.result-box {
    border-top: 3px solid #188ce6;
    padding: 25px 10px;
}

.result-box h3 {
    font-size: 26px;
    color: #142B40;
    margin: 0 0 15px;
}

.result-box p {
    font-size: 15px;
    line-height: 1.6;
    color: #555555;
}


.powertrain-image-stack {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.powertrain-image-stack img {
    width: 100%;
    max-height: 350px;
    object-fit: cover;
    border-radius: 6px;
    display: block;
}

/* =========================
   Skills
========================= */

.powertrain-skills {
    background-color: #EAF0F6;
    padding: 100px 30px;
}

.powertrain-skills > .section-label,
.powertrain-skills > h2 {
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

.powertrain-skills h2 {
    font-size: 38px;
    color: #142B40;
    margin-top: 0;
    margin-bottom: 45px;
}

.skills-grid {
    max-width: 1100px;
    margin: auto;

    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.skill-category {
    background-color: #ffffff;
    padding: 30px;
    border-radius: 6px;
    border: 1px solid #d6dde4;
}

.skill-category h3 {
    font-size: 21px;
    color: #142B40;
    margin: 0 0 15px;
}

.skill-category p {
    font-size: 15px;
    line-height: 1.8;
    color: #555555;
}


/* =========================
   Responsive
========================= */

@media (max-width: 1000px) {

    .powertrain-hero-content {
        width: 100%;
        padding: 70px 50px;
    }

    .powertrain-hero-content h1 {
        font-size: 48px;
    }

    .powertrain-section {
        padding: 70px 50px;
        gap: 40px;
    }

    .powertrain-section.reverse {
        padding-left: 50px;
        padding-right: 50px;
    }

    .results-grid,
    .skills-grid {
        grid-template-columns: 1fr;
        max-width: 700px;
    }
}


@media (max-width: 700px) {

    .powertrain-hero {
        min-height: 450px;
    }

    .powertrain-hero-content {
        padding: 60px 25px;
    }

    .powertrain-hero-content h1 {
        font-size: 38px;
    }

    .powertrain-hero-content h2 {
        font-size: 22px;
    }

    .powertrain-overview {
        padding: 65px 25px;
    }

    .powertrain-overview h2 {
        font-size: 30px;
    }

    .powertrain-section {
        grid-template-columns: 1fr;
        padding: 60px 25px;
        gap: 35px;
    }

    .powertrain-section.reverse {
        padding-left: 25px;
        padding-right: 25px;
    }

    .powertrain-text h2 {
        font-size: 29px;
    }

    .powertrain-results,
    .powertrain-skills {
        padding: 65px 25px;
    }

    .powertrain-results h2,
    .powertrain-skills h2 {
        font-size: 30px;
    }

    .results-grid,
    .skills-grid {
        gap: 20px;
    }
}