:root {
    --primary: #58C114;
    --secondary: #AB47BC;
    --bg: #0b0c15;
    --card-bg: rgba(20, 20, 25, 0.75);
    --text: #fff;
    --font: 'Fredoka', sans-serif;
}

body {
    margin: 0;
    padding: 0;
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
}

#particles-js {
    position: fixed;
    width: 100%;
    height: 100%;
    z-index: -1;
}

.bg-gradient-overlay {
    position: absolute; top:0; left:0; width:100%; height:100%;
    background: radial-gradient(circle at center, rgba(30,30,60,0.5), transparent);
    z-index: -2;
    pointer-events: none;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: rgba(0,0,0,0.5);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.logo { font-size: 1.5rem; font-weight: bold; color: #ff6b6b; letter-spacing: 2px; }

.nav-links { display: flex; gap: 1rem; }
.nav-btn {
    background: transparent;
    border: none;
    color: #ccc;
    font-family: var(--font);
    font-size: 1rem;
    cursor: pointer;
    padding: 5px 10px;
    transition: 0.3s;
}
.nav-btn:hover, .nav-btn.active { color: var(--primary); }

/* Main */
main { max-width: 1000px; margin: 0 auto; padding: 2rem; text-align: center; }

.spa-section { display: none; width: 100%; animation: slideUp 0.5s ease; }
.spa-section.active-section { display: flex; flex-direction: column; align-items: center; }

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Inputs */
.input-group {
    display: flex;
    gap: 10px;
    width: 100%;
    max-width: 600px;
    margin: 20px 0;
}

input[type="text"] {
    flex: 1;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.3);
    background: rgba(0,0,0,0.3);
    color: white;
    font-family: var(--font);
}

.primary-btn {
    padding: 12px 24px;
    background: var(--primary);
    border: none;
    border-radius: 8px;
    color: white;
    font-weight: bold;
    cursor: pointer;
    transition: 0.2s;
}
.primary-btn:hover { transform: scale(1.05); box-shadow: 0 0 15px var(--primary); }

.secondary-btn {
    padding: 10px 20px;
    background: var(--secondary);
    border: none;
    border-radius: 8px;
    color: white;
    cursor: pointer;
}

/* Cards */
.card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    width: 100%;
    border: 1px solid rgba(255,255,255,0.1);
    margin-bottom: 20px;
}

.setting-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 15px 0;
    text-align: left;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    padding-bottom: 10px;
}

/* Switch */
.switch { position: relative; display: inline-block; width: 50px; height: 28px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #333; transition: .4s; border-radius: 34px; }
.slider:before { position: absolute; content: ""; height: 20px; width: 20px; left: 4px; bottom: 4px; background-color: white; transition: .4s; border-radius: 50%; }
input:checked + .slider { background-color: var(--primary); }
input:checked + .slider:before { transform: translateX(22px); }

/* Results Grid */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 20px;
    width: 100%;
}

.video-card {
    background: rgba(0,0,0,0.4);
    border-radius: 8px;
    overflow: hidden;
    cursor: pointer;
    transition: 0.3s;
}
.video-card:hover { transform: translateY(-5px); border: 1px solid var(--primary); }
.thumb { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.details { padding: 10px; text-align: left; }
.title { font-weight: bold; font-size: 0.9rem; margin-bottom: 5px; }
.author { font-size: 0.8rem; color: #aaa; }

/* Player */
.video-wrapper {
    width: 100%;
    margin-bottom: 20px;
    background: #000;
    border-radius: 8px;
    overflow: hidden;
    position: relative;
    border: 1px solid rgba(255,255,255,0.2);
}
.player-controls {
    background: #222;
    padding: 10px;
    display: flex;
    justify-content: space-between;
}

/* Toast */
.toast {
    position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
    background: #333; color: var(--primary);
    padding: 10px 20px; border-radius: 20px;
    border: 1px solid var(--primary);
    opacity: 0; transition: 0.3s;
    pointer-events: none;
}
.toast.show { opacity: 1; bottom: 50px; }

/* Helpers */
.hidden { display: none; }
body.optimized #particles-js { display: none; }