* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-main);
    color: var(--text-main);
    font-family: var(--font-inter);
    font-size: 15px;
    overflow-x: hidden;
    user-select: none;
}

#noise-overlay {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    pointer-events: none;
    z-index: 9999;
    opacity: 0.04;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

h1, h2, h3, .oswald {
    font-family: var(--font-oswald);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

#app {
    width: 100%;
    min-height: 100vh;
    position: relative;
    padding-bottom: var(--safe-area-bottom);
}

.screen {
    display: none;
    width: 100%;
    min-height: 100vh;
    animation: fadeIn 0.3s ease-out;
}

.screen.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

#top-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--card-bg);
    display: flex;
    z-index: 100;
    padding-top: max(env(safe-area-inset-top), 10px);
}

#top-nav.hidden {
    display: none !important;
}

.nav-btn {
    flex: 1;
    background: none;
    border: none;
    color: var(--text-sec);
    font-family: var(--font-oswald);
    font-size: 12px;
    padding: 15px 0;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: all 0.2s;
}

.nav-btn.active {
    color: var(--primary-accent);
    text-shadow: var(--glow);
    border-bottom: 2px solid var(--primary-accent);
}

.pt-nav {
    padding-top: 50px;
}