:root {
    --bg: #000000;
    --metro-font: "Segoe UI", "Open Sans", Arial, sans-serif;
}

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

body {
    background-color: var(--bg);
    background-image: url("https://i.pinimg.com/originals/ba/e0/b1/bae0b111491f38f225962f347ef50248.gif");
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    color: white;
    font-family: var(--metro-font);
    overflow-x: hidden;
}

.start-screen {
    padding: 40px 0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
    padding: 0 10%;
}

.header h1 {
    font-size: 42px;
    font-weight: 300;
    letter-spacing: 1px;
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-profile .avatar {
    width: 40px;
    height: 40px;
    background: #555;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.user-profile .avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.groups-container {
    display: flex;
    gap: 60px;
    overflow-x: auto;
    padding: 0 10% 40px 10%;
    scroll-behavior: smooth;
    -webkit-overflow-scrolling: touch;
    flex-grow: 1;
}

/* hide scrollbar for Chrome */
.groups-container::-webkit-scrollbar {
    display: none;
}

/* hide scrollbar for IE, Edge and Firefox */
.groups-container {
    -ms-overflow-style: none; /* IE and Edge */
    scrollbar-width: none; /* Firefox */
}

.tile-group {
    display: flex;
    flex-direction: column;
}

.group-title {
    font-size: 22px;
    font-weight: 400;
    margin-bottom: 15px;
    color: rgba(255, 255, 255, 0.8);
}

.tile-grid {
    display: grid;
    grid-template-columns: repeat(2, 150px);
    grid-auto-rows: 150px;
    gap: 10px;
}

.tile {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 15px;
    text-decoration: none;
    color: white;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.1, 0.7, 0.1, 1);
    overflow: hidden;

    /* acrylic effect */
    backdrop-filter: blur(20px) saturate(125%);
    -webkit-backdrop-filter: blur(20px) saturate(125%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.tile:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.3);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
    filter: brightness(1.1);
}

.tile:active {
    transform: scale(0.97);
}

.tile-double {
    grid-column: span 2;
}

.tile-large {
    grid-column: span 2;
    grid-row: span 2;
}

/* bio content styling */
.tile-avatar {
    width: 80px;
    height: 80px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    margin-bottom: 15px;
    object-fit: cover;
    background-color: rgba(255, 255, 255, 0.1);
}

.bio-content h2 {
    font-size: 28px;
    font-weight: 300;
    margin-bottom: 5px;
}

.bio-content .subtitle {
    font-size: 14px;
    opacity: 0.8;
    margin-bottom: 15px;
    display: block;
}

.bio-content p {
    font-size: 14px;
    line-height: 1.4;
    font-weight: 300;
}

/* acrylic colors */
.tile-blue {
    background-color: rgba(0, 120, 215, 0.5);
}
.tile-teal {
    background-color: rgba(0, 171, 169, 0.5);
}
.tile-steel {
    background-color: rgba(100, 118, 135, 0.5);
}
.tile-cobalt {
    background-color: rgba(0, 80, 239, 0.5);
}
.tile-mauve {
    background-color: rgba(118, 96, 138, 0.5);
}
.tile-orange {
    background-color: rgba(227, 162, 26, 0.5);
}
.tile-green {
    background-color: rgba(96, 169, 23, 0.5);
}
.tile-lastfm {
    background-color: rgba(213, 16, 7, 0.5);
}
.tile-node {
    background-color: rgba(51, 51, 51, 0.6);
}

/* last.fm track styling */
.lfm-info {
    display: flex;
    align-items: center;
    gap: 15px;
    width: 100%;
}

.lfm-cover {
    width: 100px;
    height: 100px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    object-fit: cover;
    background-color: rgba(255, 255, 255, 0.1);
    flex-shrink: 0;
}

.lfm-text {
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow: hidden;
    text-align: left;
}

.track-name {
    font-size: 16px;
    font-weight: 400;
    margin-bottom: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.artist-name {
    font-size: 13px;
    opacity: 0.7;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 250px;
}

.tile-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center; /* center icons */
    width: 100%;
    margin-bottom: 20px;
}

.tile-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
}

.tile-single .tile-icon img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.tile-double .tile-icon img {
    width: 72px;
    height: 72px;
    object-fit: contain;
}

.tile-large .tile-icon img {
    width: 120px;
    height: 120px;
    object-fit: contain;
}

.tile-label {
    font-size: 13px;
    font-weight: 300;
    text-transform: none;
    position: absolute;
    bottom: 12px;
    left: 15px;
}

.tile-status {
    font-size: 12px;
    font-weight: 300;
    opacity: 0.7;
    position: absolute;
    bottom: 12px;
    right: 15px;
}

/* responsive adjustments */
@media (max-width: 600px) {
    .start-screen {
        padding: 20px 0;
    }

    .header {
        padding: 0 20px;
        margin-bottom: 30px;
    }

    .header h1 {
        font-size: 32px;
    }

    .groups-container {
        flex-direction: column;
        gap: 40px;
        padding: 0 20px 40px 20px;
        overflow-x: hidden;
    }

    .tile-grid {
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        justify-content: center;
    }

    .tile-double,
    .tile-large {
        grid-column: span 2;
    }
}