html {
    scroll-behavior: smooth;
}

body {
    background: #060d14;
    color: #e6e6e6;
    font-family: Arial, sans-serif;
    margin: 0;
}

/* ---------------- HEADER ---------------- */

header {
    padding: 20px 60px;
    border-bottom: 1px solid #1a2530;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo img {
    height: 80px;
    display: block;
}

nav a {
    color: #e6e6e6;
    text-decoration: none;
    margin-left: 30px;
    font-size: 20px;
}

nav a .accent {
    color: #ff6a00;
    font-weight: 700;
}

/* ---------------- SEKCJE ---------------- */

.section-title {
    font-size: 36px;
    margin-bottom: 30px;
    color: #ff6a00;
}

#oferta, #kontakt {
    padding: 80px 60px;
    max-width: 900px;
    margin: 0 auto;
}

#oferta ul {
    line-height: 1.8;
}

#realizacje {
    padding: 80px 60px;
}

/* ---------------- SLIDER ---------------- */

.slider {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
    border-radius: 10px;
}

.slides {
    display: flex;
    transition: transform 0.5s ease;
}

.slides img {
    width: 100%;
    height: auto;
    object-fit: contain;
    flex-shrink: 0;
    border-radius: 10px;
}

.prev, .next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0,0,0,0.5);
    color: #fff;
    border: none;
    padding: 12px 18px;
    cursor: pointer;
    font-size: 24px;
    border-radius: 4px;
}

.prev { left: 10px; }
.next { right: 10px; }

.prev:hover, .next:hover {
    background: #ff6a00;
}

/* ---------------- KONTAKT ---------------- */

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
    margin-top: 30px;
    max-width: 500px;
}

.contact-item {
    display: flex;
    align-items: center;
    background: #0b1620;
    padding: 15px 20px;
    border-radius: 10px;
    border: 1px solid #1a2530;
}

.phone-icon {
    font-size: 28px;
    margin-right: 15px;
    color: #ff6a00;
}

.gallery img {
    width: 100%;
    height: auto;
    object-fit: contain;
}

/* ========================================================= */
/* ===================== RESPONSYWNOŚĆ ===================== */
/* ========================================================= */

@media (max-width: 1024px) {
    header {
        padding: 20px 30px;
    }

    #oferta, #kontakt, #realizacje {
        padding: 60px 30px;
    }
}

@media (max-width: 768px) {

    /* HEADER — układ pionowy */
    header {
        flex-direction: column;
        text-align: center;
        gap: 20px;
    }

    nav a {
        margin: 0 10px;
        font-size: 18px;
    }

    .logo img {
        height: 60px;
    }

    /* SEKCJE */
    .section-title {
        font-size: 28px;
        text-align: center;
    }

    #oferta, #kontakt, #realizacje {
        padding: 50px 20px;
    }

    /* SLIDER */
    .prev, .next {
        padding: 8px 12px;
        font-size: 18px;
    }

    /* KONTAKT — jedna kolumna */
    .contact-grid {
        grid-template-columns: 1fr;
        max-width: 100%;
    }

    .contact-item {
        padding: 12px 15px;
    }
}

@media (max-width: 480px) {

    nav a {
        display: inline-block;
        margin: 8px 5px;
        font-size: 16px;
    }

    .section-title {
        font-size: 24px;
    }

    #oferta, #kontakt, #realizacje {
        padding: 40px 15px;
    }

    .prev, .next {
        font-size: 16px;
        padding: 6px 10px;
    }
}