:root {
    --bg-dark: #121212;
    --bg-card: #1e1e1e;
    --accent: #e3acf9;
    --text-main: #fbf1d3;
    --text-dim: #b3b3b3;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

body {
    margin: 0;
    background-color: var(--bg-dark);
    color: var(--text-main);
    overflow: hidden;
}

.layout-wrapper {
    display: grid;
    grid-template-rows: auto 1fr auto;
    height: 100vh;
}

#header {
    background-color: #000;
    padding: 1rem 2rem;
    border-bottom: 1px solid #333;
    z-index: 10;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

#logo {
    font-size: 1.5rem;
    margin: 0;
    letter-spacing: -1px;
    font-weight: 800;
}

#logo span { color: var(--accent); }

#nav {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 0.75rem;
}

.controls-bar {
    display: flex;
    gap: 1rem;
    align-items: center;
    flex-wrap: wrap;
}

input#search, .styled-select {
    background: #2a2a2a;
    border: 1px solid transparent;
    color: white;
    padding: 0.6rem 1.2rem;
    border-radius: 20px;
    outline: none;
    transition: var(--transition);
}

input#search:focus { 
    border-color: var(--accent); 
    width: 300px; 
    background: #333;
}

.nav-btn {
    cursor: pointer;
    background: #2a2a2a;
    color: white;
    border: 1px solid #444;
    padding: 0.7rem 1.4rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition);
}

.nav-btn:hover {
    background: var(--accent);
    color: var(--bg-dark);
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(227, 172, 249, 0.2);
}

.nav-btn.active {
    background: var(--accent);
    color: var(--bg-dark);
    border-color: var(--accent);
}

#app {
    padding: 2rem;
    overflow-y: auto; 
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 2rem;
    align-content: start;
    scroll-behavior: smooth;
}

#app::-webkit-scrollbar {
    width: 8px;
}
#app::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 10px;
}

#player-bar {
    background: #181818;
    padding: 1.2rem 2rem;
    border-top: 1px solid #333;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

@media (min-width: 768px) {
    #player-bar {
        flex-direction: row;
        justify-content: space-between;
    }
}

#current-track-info {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent);
}

#audio-player {
    width: 100%;
    max-width: 600px;
    filter: invert(100%) hue-rotate(180deg) brightness(1.5);
}

.hide { display: none !important; }

.loader, .error-container {
    grid-column: 1 / -1;
    text-align: center;
    padding: 5rem;
    font-size: 1.2rem;
    color: var(--text-dim);
}

.error-container button {
    margin-top: 1rem;
    background: var(--accent);
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    cursor: pointer;
}