:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --bg-color: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --card-border: rgba(255, 255, 255, 0.1);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --batch-red: #ef4444;
    --batch-blue: #3b82f6;
    --batch-green: #10b981;
    --batch-gold: #f59e0b;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Outfit', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* Background Animated Blobs */
.background-blobs {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    overflow: hidden;
    background: #0f172a;
}

.blob {
    position: absolute;
    filter: blur(80px);
    border-radius: 50%;
    animation: float 20s infinite alternate;
    opacity: 0.6;
}

.blob-1 {
    top: -10%;
    left: -10%;
    width: 50vw;
    height: 50vw;
    background: radial-gradient(circle, rgba(99,102,241,0.4) 0%, rgba(99,102,241,0) 70%);
    animation-delay: 0s;
}

.blob-2 {
    bottom: -20%;
    right: -10%;
    width: 60vw;
    height: 60vw;
    background: radial-gradient(circle, rgba(236,72,153,0.3) 0%, rgba(236,72,153,0) 70%);
    animation-delay: -5s;
}

.blob-3 {
    top: 40%;
    left: 50%;
    width: 40vw;
    height: 40vw;
    background: radial-gradient(circle, rgba(16,185,129,0.2) 0%, rgba(16,185,129,0) 70%);
    transform: translateX(-50%);
    animation-delay: -10s;
}

@keyframes float {
    0% { transform: translate(0, 0) scale(1); }
    33% { transform: translate(30px, -50px) scale(1.1); }
    66% { transform: translate(-20px, 20px) scale(0.9); }
    100% { transform: translate(0, 0) scale(1); }
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.header {
    text-align: center;
    margin-bottom: 3rem;
}

.header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -0.05em;
}

.header p {
    font-size: 1.125rem;
    color: var(--text-muted);
}

.search-container {
    width: 100%;
    max-width: 600px;
    margin-bottom: 3rem;
    position: relative;
    z-index: 10;
}

.search-box {
    position: relative;
    width: 100%;
    border-radius: 100px;
    background: rgba(30, 41, 59, 0.6);
    border: 1px solid var(--card-border);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    padding: 0.5rem 1.5rem;
}

.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2), 0 8px 32px rgba(0, 0, 0, 0.4);
    background: rgba(30, 41, 59, 0.8);
    transform: translateY(-2px);
}

.search-icon {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-right: 1rem;
    transition: color 0.3s ease;
}

.search-box:focus-within .search-icon {
    color: var(--primary);
}

.search-box input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-main);
    font-size: 1.125rem;
    font-family: inherit;
    padding: 0.75rem 0;
}

.search-box input::placeholder {
    color: var(--text-muted);
}

.search-btn {
    background: var(--primary);
    color: white;
    border: none;
    padding: 0.6rem 1.5rem;
    border-radius: 100px;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-left: 1rem;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.search-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.6);
}

.search-btn:active {
    transform: translateY(1px);
}

/* Loader */
.loader {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-bottom-color: var(--primary);
    border-radius: 50%;
    display: inline-block;
    box-sizing: border-box;
    animation: rotation 1s linear infinite;
    margin-left: 1rem;
}

@keyframes rotation {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.results-container {
    width: 100%;
    min-height: 300px;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
    color: var(--text-muted);
    background: var(--card-bg);
    border: 1px dashed rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    backdrop-filter: blur(10px);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state p {
    font-size: 1.125rem;
}

.empty-state.error {
    color: var(--batch-red);
    border-color: rgba(239, 68, 68, 0.3);
}

.users-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.user-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 1.5rem;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: var(--glass-shadow);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px);
    animation: fadeUp 0.5s forwards;
}

@keyframes fadeUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.user-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0) 100%);
    pointer-events: none;
}

.user-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 255, 255, 0.2);
    background: rgba(30, 41, 59, 0.85);
}

.avatar-wrapper {
    position: relative;
    width: 64px;
    height: 64px;
    flex-shrink: 0;
}

.avatar {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid rgba(255, 255, 255, 0.1);
    background-color: rgba(0, 0, 0, 0.2);
}

.user-info {
    flex: 1;
    min-width: 0;
}

.user-name-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.25rem;
}

.user-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.batch {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    padding: 0.15rem 0.4rem;
    border-radius: 100px;
    letter-spacing: 0.5px;
}

.batch-icon {
    font-size: 0.85rem;
    display: flex;
    align-items: center;
}

.user-username {
    font-size: 0.9rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

@media (max-width: 600px) {
    .header h1 {
        font-size: 2.5rem;
    }
    
    .users-grid {
        grid-template-columns: 1fr;
    }
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1.5rem;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-container {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    transform: translateY(20px);
    animation: slideUp 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes slideUp {
    to { transform: translateY(0); }
}

.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--card-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(30, 41, 59, 0.5);
}

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(to right, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.close-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    transition: color 0.2s ease;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    color: var(--batch-red);
    background: rgba(239, 68, 68, 0.1);
}

.modal-content {
    padding: 2rem;
    overflow-y: auto;
    flex: 1;
}

.loader-container {
    display: flex;
    justify-content: center;
    padding: 3rem;
}

.playlists-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
}

.playlist-card {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.playlist-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.playlist-img-wrapper {
    width: 100%;
    aspect-ratio: 1/1;
    overflow: hidden;
    position: relative;
    background: #1e293b;
}

.playlist-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.playlist-card:hover .playlist-img {
    transform: scale(1.05);
}

.playlist-info {
    padding: 1rem;
}

.playlist-name {
    font-weight: 600;
    font-size: 1.125rem;
    margin-bottom: 0.25rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.playlist-meta {
    font-size: 0.875rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
}

.user-card, .playlist-card {
    cursor: pointer;
}

.songs-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.song-card {
    background: rgba(30, 41, 59, 0.5);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: all 0.3s ease;
}

.song-card:hover {
    background: rgba(30, 41, 59, 0.8);
    border-color: rgba(255, 255, 255, 0.2);
}

.song-img {
    width: 48px;
    height: 48px;
    border-radius: 8px;
    object-fit: cover;
}

.song-info {
    flex: 1;
    min-width: 0;
}

.song-title {
    font-weight: 600;
    color: var(--text-main);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 0.25rem;
}

.song-subtitle {
    font-size: 0.875rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.download-btn {
    background: var(--primary);
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    flex-shrink: 0;
}

.download-btn:hover {
    background: var(--primary-hover);
    transform: scale(1.05);
}

.download-btn:disabled {
    background: var(--text-muted);
    cursor: not-allowed;
    transform: none;
}

.downloading i {
    animation: bounce 1s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

.modal-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.back-btn {
    background: transparent;
    border: 1px solid var(--card-border);
    color: var(--text-main);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: inherit;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.back-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}