/* === Основни стилове === */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    background-color: #f4f7f6;
    color: #333;
    padding-top: 220px;
    scrollbar-width: none;
    overflow-x: hidden;
}
body::-webkit-scrollbar { display: none; }

/* === Хедър (Фиксиран) === */
.app-header {
    position: fixed; top: 0; left: 0; width: 100%; z-index: 100; box-sizing: border-box;
    height: 220px; padding: 10px 20px; background-color: #ffffff;
    border-bottom: 1px solid #e0e0e0; box-shadow: 0 2px 4px rgba(0,0,0,0.05); overflow-x: hidden;
}
.header-content-wrapper {
    display: flex; flex-direction: column; justify-content: center; align-items: center;
    width: 100%; height: 100%; overflow-x: hidden;
}
.logo { margin-bottom: 10px; }
.logo img { height: 40px; }

/* === Вертикално меню със скрол === */
.main-menu {
    display: flex;
    flex-direction: column;
    max-height: 75px;
    overflow-y: auto;
    width: 75%;
    touch-action: pan-y;
    scroll-snap-type: y mandatory;
    /* КЛЮЧОВО ПРАВИЛО: Казва на браузъра да остави 25px празно място отгоре при скрол и залепване */
    scroll-padding-top: 25px;
}

.main-menu .menu-link {
    scroll-snap-align: center;
    flex-shrink: 0;
    margin: 0;
    padding: 4px 10px;
    text-align: center;
    text-decoration: none;
    color: #333;
    font-weight: bold;
    opacity: 0.4;
    transform: scale(1);
    transition: all 0.25s ease-out;
}

.main-menu .menu-link.is-active { opacity: 1; transform: scale(1.2); }
.main-menu .menu-link.is-prev { opacity: 1; -webkit-mask-image: linear-gradient(to bottom, transparent, black); mask-image: linear-gradient(to bottom, transparent, black); }
.main-menu .menu-link.is-next { opacity: 1; -webkit-mask-image: linear-gradient(to top, transparent, black); mask-image: linear-gradient(to top, transparent, black); }
.main-menu .menu-link:hover { color: #3498db; opacity: 1; }
.main-menu::-webkit-scrollbar { display: none; }
.main-menu { scrollbar-width: none; }

/* === Футър и основно съдържание === */
.main-content { max-width: 800px; margin: 20px auto; padding: 20px; }
.main-content h1 { font-size: 2em; color: #333; margin-bottom: 20px; }
.main-content p { font-size: 1.1em; line-height: 1.6; color: #555; margin-bottom: 1em; }
.app-footer { background-color: #ffffff; border-top: 1px solid #e0e0e0; padding: 5px 0; }
.footer-menu { display: flex; justify-content: space-around; align-items: center; }
.footer-menu a { display: flex; flex-direction: column; align-items: center; text-decoration: none; color: #555; padding: 10px; font-size: 12px; }
.footer-menu a:hover { color: #3498db; }
.main-menu .menu-link:visited, .main-menu .menu-link:active, .main-menu .menu-link:focus { color: #333; outline: none; -webkit-tap-highlight-color: transparent; }