* {
    box-sizing: border-box;
}

/* BODY */
body {
    margin: 0;
    min-height: 100vh;
    font-family: Arial, sans-serif;
    color: white;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 12px;
    transition: background 0.5s ease;
}

/* CONTAINER */
.container {
    width: min(100%, 420px);
    padding: 18px;
    border-radius: 22px;
    backdrop-filter: blur(18px);
    background: rgba(255,255,255,0.12);
    box-shadow: 0 10px 40px rgba(0,0,0,0.3);
    text-align: center;
}

/* LOADER FULL SCREEN */
#loader {
    position: fixed;
    inset: 0;
    background: linear-gradient(135deg,#667eea,#764ba2);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    transition: opacity 0.8s ease, visibility 0.8s;
}

/* Hide loader */
#loader.hide {
    opacity: 0;
    visibility: hidden;
}

/* Loader content */
.loader-content {
    text-align: center;
}

/* Title (reuse gradient style) */
.loader-title {
    font-size: 32px;
    font-weight: bold;
    margin-bottom: 20px;

    background: linear-gradient(90deg,#fff,#ffd6ff,#caffbf,#a0c4ff);
    background-size: 300%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;

    animation: gradientMove 5s ease infinite;
}

/* Loading bar */
.loader-bar {
    width: 120px;
    height: 4px;
    background: rgba(255,255,255,0.2);
    border-radius: 10px;
    overflow: hidden;
    position: relative;
}

/* Moving bar */
.loader-bar::before {
    content: "";
    position: absolute;
    height: 100%;
    width: 40%;
    background: white;
    border-radius: 10px;
    animation: loading 1.2s infinite;
}

@keyframes loading {
    0% { left: -40%; }
    100% { left: 100%; }
}

/* TITLE */
h1 {
    font-size: clamp(30px, 4vw, 35px);
    margin-bottom: 14px;
}

/* MOODS */
.moods {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-bottom: 12px;
}

.mood {
    padding: 8px 12px;
    border-radius: 20px;
    border: none;
    cursor: pointer;
    background: rgba(255,255,255,0.2);
    color: white;
    transition: 0.2s;
    font-size: 14px;
}

.mood:hover {
    transform: scale(1.05);
}

/* ACTIVE MOOD */
.mood.active {
    background: white;
    color: black;
    font-weight: bold;
    box-shadow: 0 0 10px rgba(255,255,255,0.6);
}

/* NOW PLAYING BLOCK */
.now-playing {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px;
    border-radius: 18px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* ONLY THIS ANIMATES */
.playing .now-playing {
    animation: pulse 1.6s ease-in-out infinite;
    box-shadow: 0 0 18px rgba(68, 52, 52, 0.15);
}

@keyframes pulse {
    0%,100% { transform: scale(1); }
    50% { transform: scale(1.03); }
}

/* IMAGE */
.now-playing img {
    width: clamp(90px, 25vw, 130px);
    height: clamp(90px, 25vw, 130px);
    object-fit: cover;
    border-radius: 20px;
    margin-bottom: 10px;
}

/* TEXT */
.now-playing h2 {
    margin: 0;
    font-size: clamp(18px, 4vw, 22px);
}

.now-playing p {
    margin: 4px 0 0;
    opacity: 0.8;
}

/* CONTROLS */
.controls {
    margin-top: 10px;
}

.controls button,
.extra button {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    margin: 6px;
    transition: 0.2s;
    background: rgba(255,255,255,0.9);
}

/* SMOOTH HOVER */
.controls button:hover,
.extra button:hover {
    transform: scale(1.05);
}

/* PLAY BUTTON */
#play {
    background: white;
    color: black;
    font-weight: bold;
}

/* PROGRESS BAR */
.progress-container {
    height: 5px;
    background: rgba(255,255,255,0.3);
    margin: 12px 0;
    border-radius: 5px;
    cursor: pointer;
    overflow: hidden;
}

.progress {
    height: 5px;
    background: white;
    width: 0%;
}

/* TIME */
.time {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
}

/* EXTRA BUTTONS */
.extra {
    margin-top: 8px;
}

/* VOLUME */
.volume {
    margin-top: 10px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
}

.volume input {
    width: 120px;
}

/* PLAYLIST */
#playlist {
    max-height: 160px;
    overflow-y: auto;
    margin-top: 10px;

    /* Firefox */
    scrollbar-width: thin;
    scrollbar-color: rgba(255,255,255,0.2) transparent;
}

/* SONG ITEM */
.song {
    padding: 8px;
    margin: 5px 0;
    border-radius: 10px;
    background: rgba(255,255,255,0.2);
    cursor: pointer;
    transition: 0.2s;
}

.song:hover {
    background: rgba(255,255,255,0.3);
}

.song.active {
    background: rgba(255,255,255,0.5);
    font-weight: bold;
}

/* PREMIUM SCROLLBAR */

/* Chrome / Edge */
#playlist::-webkit-scrollbar {
    width: 6px;
}

#playlist::-webkit-scrollbar-track {
    background: transparent;
}

#playlist::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.15);
    border-radius: 10px;
    opacity: 0;
    transition: 0.3s;
}

/* Show on hover */
#playlist:hover::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.35);
    opacity: 1;
}

/* 📱 MOBILE */
@media (max-width: 480px) {

    .container {
        width: 95%;
        padding: 14px;
    }

    .controls button {
        width: 38px;
        height: 38px;
    }

    .volume input {
        width: 90px;
    }

    #playlist {
        max-height: 130px;
    }
}

/* 📲 TABLET */
@media (min-width: 481px) and (max-width: 768px) {
    .container {
        width: 85%;
    }
}

/* 🖥 DESKTOP */
@media (min-width: 1024px) {
    .container {
        width: 420px;
    }
}