* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Cinzel', serif;
}

html {
    scroll-behavior: smooth;
}

body {
    background: white;
    color: #111;
}

/* ===== MENU ===== */

header {
    width: 100%;
    position: fixed;
    top: 0;
    left: 0;
    background: rgba(255,255,255,0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #ddd;
    z-index: 1000;
}

nav {
    max-width: 1200px;
    margin: auto;
    padding: 20px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
      height: 40px;
    }

.menu {
    display: flex;
    gap: 40px;
}

.menu a {
    text-decoration: none;
    color: #111;
    font-size: 16px;
    font-weight: 700;
    transition: 0.3s;
    position: relative;
}

.menu a::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: -5px;
    width: 0%;
    height: 1px;
    background: black;
    transition: 0.3s;
}

.menu a:hover::after {
    width: 100%;
}

/* ===== BANER ===== */

.banner {
    height: 100vh;
    background: url('twoje-zdjecie.jpg') center/cover no-repeat;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
}

.banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(255,255,255,0.35);
}

.banner-content {
    position: relative;
    z-index: 1;
    padding: 20px;
}

.banner h1 {
    font-size: 70px;
    margin-bottom: 20px;
    letter-spacing: 4px;
}

.banner p {
    font-size: 22px;
    letter-spacing: 2px;
}

/* ===== SEKCJE ===== */

section {
    min-height: 100vh;
    padding: 140px 60px;
}

#about {
    background: #ffffff;
}

#portfolio {
    background: #f5f5f5;
}

#collab {
    background: #ffffff;
}

#contact {
    background: #f5f5f5;
}

h2 {
    font-size: 46px;
    margin-bottom: 30px;
    letter-spacing: 3px;
}

#about p {
    line-height: 2.3;
    margin-bottom: 22px;
    max-width: 750px;
}

p {
    max-width: 800px;
    line-height: 1.8;
    font-size: 18px;
}

/* ===== RESPONSIVE ===== */

@media (max-width: 768px) {

        nav {
        flex-direction: column;
        gap: 10px;
    }

    .menu {
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }

    .menu a {
        font-size: 14px;
    }

    .banner h1 {
        font-size: 42px;
    }

    .banner p {
        font-size: 18px;
    }

    section {
        padding: 120px 25px;
    }

    h2 {
        font-size: 34px;
    }

    #about p {
        line-height: 1.8;
        margin-bottom: 16px;

    }

}