:root {
    --primary-color: #e0e5ec;
    --highlight-color-light: #ffffff;
    --shadow-color-dark: #a3b1c6;
    --text-color: #555;
    --accent-color: #3498db;
}

body {
    font-family: 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--primary-color);
    color: var(--text-color);
    margin: 0;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    min-height: 100vh;
}

#app-container {
    width: 100%;
    max-width: 1200px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* --- Neumorphic Base Styles --- */
.neumorphic-button, .neumorphic-select, .nav-button, .social-button, .control-button, .player-card, .filters-card, .radio-list-container, .radio-item {
    background: var(--primary-color);
    border: none;
    border-radius: 15px;
    box-shadow: 6px 6px 12px var(--shadow-color-dark), -6px -6px 12px var(--highlight-color-light);
    transition: all 0.2s ease-in-out;
}

.neumorphic-button:active, .nav-button:active, .social-button:active, .control-button:active {
    box-shadow: inset 4px 4px 8px var(--shadow-color-dark), inset -4px -4px 8px var(--highlight-color-light);
    color: var(--accent-color);
}

.neumorphic-button.active {
    box-shadow: inset 4px 4px 8px var(--shadow-color-dark), inset -4px -4px 8px var(--highlight-color-light);
    color: var(--accent-color);
}


/* --- Header --- */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 25px;
    border-radius: 20px;
    background: var(--primary-color);
    box-shadow: 8px 8px 16px var(--shadow-color-dark), -8px -8px 16px var(--highlight-color-light);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 15px;
}

.platform-logo {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    padding: 5px;
    background: var(--primary-color);
    box-shadow: inset 3px 3px 6px var(--shadow-color-dark), inset -3px -3px 6px var(--highlight-color-light);
}

header h1 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-color);
    text-shadow: 1px 1px 2px var(--highlight-color-light);
}

.external-links {
    display: flex;
    gap: 15px;
}

.nav-button {
    padding: 10px 20px;
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
}

/* --- Main Content --- */
main {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.player-and-filters {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 20px;
}

/* --- Player Card --- */
.player-card {
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 20px;
}
.station-art img {
    width: 120px;
    height: 120px;
    border-radius: 15px;
    object-fit: cover;
    box-shadow: 4px 4px 8px var(--shadow-color-dark), -4px -4px 8px var(--highlight-color-light);
}

.station-info {
    flex-grow: 1;
}
.station-info h2 { margin: 0 0 5px 0; }
.station-info p { margin: 0; color: #777; }

.control-button {
    width: 70px;
    height: 70px;
    border-radius: 50%;
    font-size: 2rem;
    color: var(--text-color);
    cursor: pointer;
}

/* --- Filters Card --- */
.filters-card {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.filters-card h2 {
    margin: 0 0 10px 0;
    text-align: center;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.neumorphic-input {
    width: 100%;
    padding: 10px 15px;
    border: none;
    outline: none;
    background: var(--primary-color);
    border-radius: 10px;
    box-shadow: inset 3px 3px 6px var(--shadow-color-dark), inset -3px -3px 6px var(--highlight-color-light);
    color: var(--text-color);
    font-size: 1rem;
    box-sizing: border-box;
}
.neumorphic-input::placeholder {
    color: #999;
}

.neumorphic-select {
    width: 100%;
    padding: 10px;
    border: none;
    outline: none;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    color: var(--text-color);
    font-size: 1rem;
    cursor: pointer;
}

.neumorphic-button {
    padding: 10px;
    color: var(--text-color);
    cursor: pointer;
    font-size: 1rem;
    text-align: center;
}

/* --- Radio List --- */
.radio-list-container {
    padding: 20px;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
    max-height: 50vh;
    overflow-y: auto;
}

.radio-item {
    display: flex;
    align-items: center;
    padding: 15px;
    gap: 15px;
    cursor: pointer;
}
.radio-item:hover {
    transform: translateY(-2px);
    box-shadow: 8px 8px 16px var(--shadow-color-dark), -8px -8px 16px var(--highlight-color-light);
}

.radio-item.playing {
    box-shadow: inset 4px 4px 8px var(--shadow-color-dark), inset -4px -4px 8px var(--highlight-color-light);
    transform: translateY(0);
}


.radio-item img {
    width: 60px;
    height: 60px;
    border-radius: 10px;
    object-fit: cover;
}

.radio-item-info {
    flex-grow: 1;
}

.radio-item-info h3 {
    margin: 0;
    font-size: 1.1rem;
}

.radio-item-info p {
    margin: 4px 0 0 0;
    font-size: 0.9rem;
    color: #888;
}

.favorite-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-color);
    cursor: pointer;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}
.favorite-btn:hover {
     box-shadow: 4px 4px 8px var(--shadow-color-dark), -4px -4px 8px var(--highlight-color-light);
}
.favorite-btn:active {
    box-shadow: inset 2px 2px 4px var(--shadow-color-dark), inset -2px -2px 4px var(--highlight-color-light);
}

.favorite-btn.is-favorite {
    color: var(--accent-color);
}

/* --- Footer --- */
footer {
    text-align: center;
    padding: 20px;
}

.social-media {
    margin-bottom: 15px;
    display: flex;
    justify-content: center;
    gap: 20px;
}

.social-button {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    color: var(--text-color);
    font-size: 1.2rem;
}

/* --- Responsive --- */
@media (max-width: 900px) {
    .player-and-filters {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    body {
        padding: 10px;
    }
    header {
        flex-direction: column;
        gap: 15px;
    }
    .radio-list-container {
        grid-template-columns: 1fr;
    }
}