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

html {
    min-height: 100%;
    width: 100%;
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    background: radial-gradient(circle at top left, rgba(78, 95, 198, 0.12), transparent 28%), radial-gradient(circle at bottom right, rgba(78, 95, 198, 0.10), transparent 24%), var(--page-bg);
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text-color);
}

header {
    background-color: var(--main-color);
    position: fixed;
    display: flex;
    align-items: center;
    padding: 0 24px;
    top: 0;
    left: 0;
    right: 0;
    height: 78px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    z-index: 1000;
}

.logo_reu {
    display: block;
    height: 52px;
    width: auto;
}

.page-content {
    min-height: 100vh;
    padding-top: 78px;
}