:root {
    --bg-dark: #0a0a0a;
    --accent: #0084ff;
    --accent-glow: rgba(0, 132, 255, 0.6);
}

.theme-orange {
    --accent: #ff7b00;
    --accent-glow: rgba(255, 123, 0, 0.6);
}

* { box-sizing: border-box; margin: 0; padding: 0; font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; }

body {
    background-color: var(--bg-dark);
    color: white;
    overflow-x: hidden;
    display: flex;
    justify-content: center;
    padding: 40px 20px;
}

/* Background Effect */
.banner-bg {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-size: cover;
    background-position: center;
    filter: blur(8px) brightness(0.3);
    z-index: -1;
}

/* Container */
.container {
    max-width: 500px;
    width: 100%;
    text-align: center;
}

/* Theme Switcher */
.theme-switcher {
    position: fixed;
    top: 20px; right: 20px;
    display: flex; gap: 10px;
    background: rgba(255,255,255,0.1);
    padding: 10px;
    border-radius: 50px;
    backdrop-filter: blur(5px);
}
.theme-switcher button {
    width: 25px; height: 25px; border-radius: 50%; border: 2px solid white; cursor: pointer;
}
.btn-blue { background: #0084ff; }
.btn-orange { background: #ff7b00; }

/* Profile Card */
.profile-card img {
    width: 120px; height: 120px;
    border-radius: 50%;
    border: 3px solid var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
    margin-bottom: 15px;
}

.profile-card h1 { font-size: 1.5rem; margin-bottom: 5px; }
.profile-card p { color: #ccc; font-size: 0.9rem; margin-bottom: 30px; }

/* Infinite Slider */
.slider-container {
    width: 100%;
    overflow: hidden;
    margin-bottom: 30px;
    border-radius: 15px;
}
.slider-track {
    display: flex;
    width: calc(250px * 10);
    animation: scroll 20s linear infinite;
}
.slider-track img {
    width: 200px; height: 110px;
    object-fit: cover;
    margin: 0 10px;
    border-radius: 10px;
    border: 1px solid rgba(255,255,255,0.1);
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(calc(-220px * 5)); }
}

/* Menu Items */
.menu-grid {
    display: flex;
    flex-direction: column;
    gap: 15px;
}
.menu-item {
    text-decoration: none;
    color: white;
    background: rgba(255, 255, 255, 0.05);
    padding: 15px;
    border-radius: 12px;
    border: 1px solid var(--accent);
    transition: 0.3s;
    font-weight: 500;
    box-shadow: inset 0 0 5px var(--accent-glow);
}
.menu-item:hover {
    background: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
    transform: translateY(-2px);
}
.highlight {
    background: rgba(255, 255, 255, 0.1);
    border-width: 2px;
}