* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background: #111;
    color: #eee;
    line-height: 1.6;
}


/* HEADER */

header {
    background: #050505;
    border-bottom: 3px solid #c62828;
    padding: 20px 5%;

    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo {
    font-size: 1.9rem;
    font-weight: bold;
    color: #fff;
}

.logo span {
    color: #ef3333;
}

nav a {
    color: #ddd;
    text-decoration: none;
    margin-left: 28px;
    font-weight: bold;
    transition: color 0.2s;
}

nav a:hover {
    color: #ef5350;
}


/* HERO */

.hero {
    min-height: 640px;

    padding: 55px 5%;

    display: flex;
    align-items: center;
    justify-content: space-between;

    gap: 45px;

    background:
        linear-gradient(
            90deg,
            #050505 0%,
            #080808 43%,
            #111 100%
        );
}

.hero-content {
    max-width: 650px;
    flex: 0.9;
}

.hero h1 {
    font-size: 3.7rem;
    line-height: 1.05;
    margin-bottom: 25px;
}

.hero h1 span {
    color: #ef3e3e;
}

.hero p {
    font-size: 1.25rem;
    color: #ccc;
    max-width: 680px;
    margin-bottom: 35px;
}


/* HERO IMAGE */

.hero-image {
    flex: 1.15;

    display: flex;
    justify-content: center;
    align-items: center;

    overflow: hidden;

    border-radius: 10px;
}

.hero-image img {
    width: 100%;
    max-width: 720px;
    height: auto;
    object-fit: contain;
    border-radius: 10px;
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.65);
}

/* BUTTONS */

.button {
    display: inline-block;

    background: #d62828;
    color: white;

    text-decoration: none;
    font-weight: bold;

    padding: 15px 28px;

    border-radius: 5px;

    transition:
        background 0.2s,
        transform 0.2s;
}

.button:hover {
    background: #ef3535;
    transform: translateY(-1px);
}


/* GENERAL SECTIONS */

section {
    padding: 70px 5%;
}

section h2 {
    font-size: 2.3rem;
    margin-bottom: 15px;
}

.section-intro {
    color: #bbb;

    max-width: 800px;

    margin-bottom: 35px;

    font-size: 1.1rem;
}


/* SERVICES */

.services {
    background: #181818;
}

.service-grid {
    display: grid;

    grid-template-columns:
        repeat(auto-fit, minmax(240px, 1fr));

    gap: 20px;
}

.service-card {
    background:
        linear-gradient(
            145deg,
            #242424,
            #1c1c1c
        );

    border: 1px solid #373737;

    border-radius: 8px;

    padding: 26px;

    transition:
        transform 0.2s,
        border-color 0.2s;
}

.service-card:hover {
    transform: translateY(-3px);
    border-color: #c62828;
}

.service-card h3 {
    color: #ef4343;

    margin-bottom: 10px;
}

.service-card p {
    color: #bbb;
}


/* DETAILS SECTION */

.difference {
    background:
        linear-gradient(
            90deg,
            #080808,
            #101010
        );
}

.feature-grid {
    display: grid;

    grid-template-columns:
        repeat(auto-fit, minmax(250px, 1fr));

    gap: 28px;
}

.feature {
    border-left: 3px solid #c62828;

    padding-left: 22px;
}

.feature h3 {
    margin-bottom: 10px;
}

.feature p {
    color: #bbb;
}


/* MAINTENANCE */

.maintenance {
    background: #181818;
}

.maintenance-box {
    max-width: 950px;

    background:
        linear-gradient(
            145deg,
            #252525,
            #1f1f1f
        );

    padding: 32px;

    border-radius: 8px;

    border: 1px solid #383838;
}

.maintenance-box p {
    color: #ccc;
}

.maintenance-box strong {
    color: #ef4343;
}


/* CALL TO ACTION */

.cta {
    background:
        linear-gradient(
            90deg,
            #8f1010,
            #c31818,
            #941010
        );

    padding-top: 38px;
    padding-bottom: 38px;
}

.cta-content {
    max-width: 1400px;

    margin: 0 auto;

    display: grid;

    grid-template-columns:
        1.3fr 1fr auto;

    gap: 40px;

    align-items: center;
}

.cta h2 {
    margin: 0;

    font-size: 2rem;

    line-height: 1.15;
}

.cta p {
    margin: 0;

    font-size: 1.05rem;
}

.cta-button {
    background: white;
    color: #111;

    white-space: nowrap;
}

.cta-button:hover {
    background: #ddd;
}


/* FOOTER */

footer {
    background: #050505;

    padding: 28px 5%;

    text-align: center;

    color: #888;
}


/* TABLET */

@media (max-width: 1050px) {

    .hero {
        min-height: 580px;
        gap: 30px;
    }

    .hero h1 {
        font-size: 3rem;
    }

    .hero-image img {
        height: 350px;
    }

    .cta-content {
        grid-template-columns: 1fr 1fr;
    }

    .cta-content > div:last-child {
        grid-column: 1 / -1;
    }
}


/* MOBILE */

@media (max-width: 760px) {

    header {
        align-items: flex-start;
    }

    nav {
        width: 100%;
        margin-top: 15px;
    }

    nav a {
        margin-left: 0;
        margin-right: 18px;
    }

    .hero {
        flex-direction: column;

        align-items: flex-start;

        min-height: auto;

        padding-top: 55px;
        padding-bottom: 55px;
    }

    .hero-content {
        max-width: 100%;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .hero-image {
        width: 100%;
    }

    .hero-image img {
        max-width: 100%;

        height: auto;

        max-height: 420px;
    }

    section {
        padding:
            55px 6%;
    }

    section h2 {
        font-size: 2rem;
    }

    .cta-content {
        display: block;
    }

    .cta-content > div {
        margin-bottom: 25px;
    }

    .cta-content > div:last-child {
        margin-bottom: 0;
    }
}