* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: Arial, Helvetica, sans-serif;
}

/* =====================
   GLOBAL
===================== */

body {
    color: #e0e0e0;
    min-height: 100vh;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
}

/* =====================
   BACKGROUNDS
===================== */

body.home {
    background-image: url("images/hero-bg.jpg");
}

body.about {
    background-image: url("images/hero-kontakt.jpg");
}

body.contact {
    background-image: url("images/hero-kontakt.jpg");
}

/* =====================
   HEADER & NAV
===================== */

header {
    position: fixed;
    top: 30px;
    right: 50px;
    z-index: 10;
}

nav a {
    color: #cfcfcf;
    margin-left: 30px;
    text-decoration: none;
    font-size: 14px;
    letter-spacing: 1px;
}

nav a:hover {
    color: #ffffff;
}

/* =====================
   LOGO
===================== */

.logo {
    position: fixed;
    top: 30px;
    left: 50px;
    z-index: 10;
}

.logo img {
    height: 48px;
}

/* показываем нужный логотип */
.logo-light {
    display: none;
}

.logo-dark {
    display: none;
}

/* по умолчанию (главная и тёмные фоны) */
body.home .logo-light,
body.about .logo-light {
    display: block;
}

/* если нужен другой логотип */
body.contact .logo-dark {
    display: block;
}

/* =====================
   MAIN
===================== */

main.center {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
}

main.center h1 {
    font-size: 48px;
    letter-spacing: 4px;
}

main.center span {
    margin-top: 10px;
    font-size: 18px;
    opacity: 0.7;
}

main.content {
    padding: 160px 80px 160px;
    max-width: 1500px;
}

/* =====================
   FORM
===================== */

form {
    max-width: 400px;
}

input, button {
    width: 100%;
    padding: 12px;
    margin-top: 15px;
    background: rgba(0,0,0,0.6);
    border: 1px solid #444;
    color: #fff;
}

label {
    display: block;
    margin-top: 15px;
    font-size: 12px;
}

/* =====================
   FOOTER
===================== */

footer {
    position: fixed;
    bottom: 20px;
    width: 100%;
    padding: 0 40px;
    font-size: 11px;
    color: #9a9a9a;
}

.footer-left {
    position: absolute;
    left: 50px;
}

.footer-right {
    position: absolute;
    right: 40px;
    text-align: right;
    line-height: 1.6;
}

.footer-center {
    position: fixed;
    bottom: 5px;
    width: 100%;
    text-align: center;
}

/* =====================
   COOKIE
===================== */

#cookie-banner {
    position: fixed;
    bottom: 0;
    width: 100%;
    background: rgba(0,0,0,0.85);
    padding: 15px;
    text-align: center;
    font-size: 12px;
}