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

html, body {
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.navbar {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: row;
    gap: 15px;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    padding: 15px 25px;
    border-radius: 30px;
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: 
        0 8px 32px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.5);
    transition: transform 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94), opacity 0.4s ease;
    transform: translateX(-50%) translateY(-150%);
    opacity: 0;
}

.navbar.visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.nav-btn {
    padding: 10px 20px;
    border: none;
    background: transparent;
    color: rgba(255, 255, 255, 0.7);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    position: relative;
    border-radius: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.nav-icon {
    width: 22px;
    height: 22px;
    transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.nav-btn.active .nav-icon {
    width: 28px;
    height: 28px;
    filter: drop-shadow(0 0 8px rgba(255, 255, 255, 0.6));
}

.nav-btn.active {
    background: rgba(255, 255, 255, 0.3);
    color: white;
    font-size: 16px;
    font-weight: 600;
    box-shadow: 
        0 0 20px rgba(255, 255, 255, 0.3),
        0 4px 15px rgba(0, 0, 0, 0.1);
}

.nav-btn:hover:not(.active) {
    color: white;
    background: rgba(255, 255, 255, 0.1);
}

html {
    scroll-behavior: smooth;
}

.scroll-container {
    width: 100%;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    scroll-snap-type: y mandatory;
    scrollbar-width: none;
    -ms-overflow-style: none;
    -webkit-overflow-scrolling: touch;
    scroll-padding-top: 0;
}

.scroll-container::-webkit-scrollbar {
    display: none;
}

.container {
    width: 100%;
    height: 100%;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 3rem;
    font-weight: bold;
    scroll-snap-align: start;
    scroll-snap-stop: always;
}

.container:nth-child(1) { background: #ff6b6b; }
.container:nth-child(2) { background: #4ecdc4; }
.container:nth-child(3) { background: #45b7d1; }
.container:nth-child(4) { background: #96ceb4; }
.container:nth-child(5) { background: #ffeaa7; }