/* --- Color & Font Palette --- */
:root {
    --background-color: #121212; /* A softer black */
    --container-bg: #1e1e1e;
    --primary-text: #e0e0e0;
    --accent-purple: #bb86fc;
    --accent-pink: #f06292;
    --accent-orange: #ffb74d;
    --accent-blueberry: #64b5f6;
    --glow-color: var(--accent-pink);
    --glow-color-hsla: hsla(320, 90%, 70%, 0.2); /* Default for initial load */
    --font-family: 'Poppins', sans-serif;
}

body {
    font-family: var(--font-family);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: var(--background-color);
    color: var(--primary-text);
    font-weight: 300;
    overflow: hidden;
}

.player-page-body {
    display: block;
    justify-content: initial;
    align-items: initial;
}

.login-container, .player-container {
    text-align: center;
    background-color: var(--container-bg);
    padding: 2rem;
    box-shadow: 0 0 25px var(--accent-purple); /* Default glow */
    transition: box-shadow 0.8s ease-in-out; /* Smooth transition for glow color change */
}

.login-container {
    border-radius: 20px;
}

.player-container {
    border-radius: 20px 20px 0 0;
    position: fixed; /* Position at the bottom */
    bottom: 0;
    left: 0;
    width: calc(100% - 4rem); /* Full width minus padding */
}

.login-container h1 {
    color: var(--accent-purple);
    text-shadow: 0 0 8px var(--accent-purple);
}

.top-selectors {
    display: flex;
    justify-content: space-between;
    margin-bottom: 1rem;
}

.selector-group {
    display: flex;
    align-items: center;
}

input, button, select {
    padding: 0.5rem;
    margin: 0.5rem;
    border-radius: 5px;
    border: 1px solid var(--primary-text);
    background-color: transparent;
    color: var(--primary-text);
}

select {
    /* Hide the default arrow */
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    /* Add custom arrow */
    background-image: linear-gradient(45deg, transparent 50%, var(--accent-purple) 50%), linear-gradient(135deg, var(--accent-purple) 50%, transparent 50%);
    background-position: calc(100% - 20px) calc(1em + 2px), calc(100% - 15px) calc(1em + 2px);
    background-size: 5px 5px, 5px 5px;
    background-repeat: no-repeat;
    padding-right: 2rem; /* Make space for the custom arrow */
}

select option {
    background: var(--container-bg);
    color: var(--primary-text);
}

button {
    cursor: pointer;
    background-color: transparent;
    color: var(--primary-text);
    border: 1px solid var(--primary-text);
    transition: all 0.3s ease;
}

button:hover {
    color: white;
    border-color: var(--glow-color);
    box-shadow: 0 0 10px var(--glow-color), inset 0 0 5px var(--glow-color);
    text-shadow: 0 0 5px white;
}

#play-pause-btn.playing {
    background-color: var(--accent-pink);
    border-color: var(--accent-pink);
    color: var(--background-color);
    box-shadow: 0 0 10px var(--accent-pink);
    font-weight: 600;
}

#shuffle-btn.active {
    background-color: var(--accent-purple);
    border-color: var(--accent-purple);
    color: white;
    box-shadow: 0 0 10px var(--accent-purple);
    font-weight: 400;
}

#eq-toggle-btn.active, #playlist-view-btn.active {
    background-color: var(--accent-pink);
    border-color: var(--accent-pink);
    color: white;
}

.eq-preset-btn.active {
    background-color: var(--accent-blueberry);
    border-color: var(--accent-blueberry);
    color: white;
    box-shadow: 0 0 10px var(--accent-blueberry);
}

.error-message {
    color: red;
    height: 1rem;
}

#visualizer {
    position: absolute;
    width: 100%;
    height: 50vh;
    top: 0;
    left: 0;
}

#login-image-placeholder {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    margin: 0 auto 1.5rem auto;
    /* Make sure your image is in the /img/ folder */
    background-image: url('../img/login-logo.png');
    background-size: cover;
    background-position: center;
}

#song-info {
    margin-top: 1rem;
    text-align: left;
}

.links {
    margin-top: 1.5rem;
}

.links a {
    color: var(--accent-purple);
    margin: 0 1rem;
    text-decoration: none;
    transition: all 0.3s ease;
}

.links a:hover {
    filter: drop-shadow(0 0 8px var(--accent-purple));
}

.links img {
    height: 30px;
    width: auto;
    vertical-align: middle;
    transition: transform 0.3s ease;
}

.controls {
    margin: 1rem 0;
}

#equalizer-container {
    display: none; /* Hide by default */
    flex-direction: column;
    align-items: center;
    margin: 1.5rem 0;
    padding: 1rem;
    border-top: 1px solid #444;
    border-bottom: 1px solid #444;
    gap: 1rem;
}

#eq-reset-btn {
    grid-column: 1 / -1; /* Span all columns if using grid */
    width: 50%;
    margin-top: 1rem;
}

#equalizer-container.visible {
    display: flex;
}

#eq-presets-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
}

.eq-preset-btn {
    flex-grow: 1;
}

#eq-bands-container {
    display: flex;
    justify-content: space-around;
    width: 100%;
}

.eq-band {
    display: flex;
    /* Center the rotated slider vertically and horizontally */
    justify-content: center;
    align-items: center;
    height: 140px; /* Increase height to give sliders more room */
    padding: 0 5px;
}

.eq-band input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    background: var(--glow-color-hsla); /* Dynamic semi-transparent track */
    width: 100px;
    height: 5px;
    transform: rotate(-90deg);
}

.eq-band input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 15px;
    height: 15px;
    background: var(--glow-color); /* Use the dynamic glow color */
    cursor: pointer;
    border-radius: 50%;
    border: 1px solid var(--container-bg);
}

.eq-band input[type="range"]::-moz-range-thumb {
    width: 15px;
    height: 15px;
    background: var(--glow-color); /* Use the dynamic glow color */
    cursor: pointer;
    border-radius: 50%;
    border: 1px solid var(--container-bg);
}

/* Playback Progress & Volume */
.playback-controls {
    margin: 1rem 0;
}

#progress-container {
    background-color: var(--glow-color-hsla); /* Dynamic semi-transparent track */
    border-radius: 5px;
    cursor: pointer;
    height: 10px;
    width: 100%;
}

#progress-bar {
    background-color: var(--glow-color); /* Dynamic progress bar color */
    height: 100%;
    width: 0%;
    border-radius: 5px;
}

/* ... (rest of the CSS) ... */

#volume-slider {
    -webkit-appearance: none;
    appearance: none;
    width: 120px;
    height: 5px;
    background: var(--glow-color-hsla); /* Dynamic semi-transparent track */
    outline: none;
    border-radius: 3px;
    margin-left: 0.5rem;
}

#volume-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 15px;
    height: 15px;
    background: var(--glow-color); /* Dynamic thumb color */
    cursor: pointer;
    border-radius: 50%;
}

#volume-slider::-moz-range-thumb {
    width: 15px;
    height: 15px;
    background: var(--glow-color); /* Dynamic thumb color */
    cursor: pointer;
    border-radius: 50%;
}
/* Playlist Modal Styles */
.modal-hidden {
    display: none;
}

#playlist-modal {
    position: fixed;
    z-index: 100;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0,0,0,0.7);
}

.modal-content {
    background-color: rgba(30, 30, 30, 0.6); /* Semi-transparent background */
    backdrop-filter: blur(10px); /* The frosted glass effect */
    -webkit-backdrop-filter: blur(10px); /* For Safari */
    margin: 10% auto;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    width: 80%;
    max-width: 600px;
    border-radius: 10px;
    position: relative;
}

.modal-close {
    color: #aaa;
    position: absolute;
    top: 10px;
    right: 20px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
}

#playlist-search {
    width: calc(100% - 1rem);
    margin-bottom: 1rem;
}

#playlist-view-list {
    list-style-type: none;
    padding: 0;
    margin: 0;
    max-height: 50vh;
    overflow-y: auto;
    text-align: left;
}

#playlist-view-list li {
    padding: 10px;
    border-bottom: 1px solid #444;
    cursor: pointer;
}

#playlist-view-list li.currently-playing {
    background-color: rgba(187, 134, 252, 0.2); /* Semi-transparent purple */
    color: var(--accent-purple);
    font-weight: 600;
}