/* Mobile-first responsive design */
* {
    box-sizing: border-box;
}

body {
    font-family: Roboto, -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    background: white;
    color: black;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    -webkit-text-size-adjust: 100%;
    -ms-text-size-adjust: 100%;
}

.container {
    background: white;
    border: 2px solid black;
    border-radius: 0px; /* No radius on mobile for seamless appearance */
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    margin-top: 0px;
    margin-bottom: 0px; /* No gap on mobile for maximum space utilization */
}

.header {
    padding: 8px 15px;
    border-bottom: 2px solid black;
    text-align: center;
}

.header h1 {
    margin: 0 0 10px 0;
    font-size: 1.2rem;
    font-weight: bold;
}

.header p {
    margin: 0;
    font-size: 0.8rem;
}

.player-section {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: white;
    color: black;
    border-top: 2px solid black;
    padding: 8px 12px;
    z-index: 1000;
    max-width: 100vw;
    box-sizing: border-box;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
}

.current-track {
    flex: 1;
    text-align: left;
    min-width: 0;
}

.track-info {
    margin: 0;
}

.track-title {
    font-weight: bold;
    font-size: 0.8rem;
    margin: 0 0 2px 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: black;
}

.track-artist {
    font-size: 0.7rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: black;
    margin: 0;
}

.controls {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}

.control-btn {
    background: white;
    color: black;
    border: 2px solid black;
    border-radius: 4px;
    padding: 6px 10px;
    font-size: 0.7rem;
    font-weight: bold;
    cursor: pointer;
    font-family: Roboto, -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    min-height: 32px;
    min-width: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: rgba(0,0,0,0.1);
}

.control-btn:hover,
.control-btn:active {
    background: black;
    color: white;
}

.control-btn:disabled {
    background: white;
    color: black;
    opacity: 0.5;
    cursor: not-allowed;
}

.playlist-section {
    max-height: calc(100vh - 52px); /* Account for playback controls height only */
    overflow-y: auto;
}

.track-item {
    padding: 12px 15px;
    border-bottom: 1px solid black;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
}

.track-item:hover {
    background: black;
    color: white;
}

.track-item.playing {
    background: black;
    color: white;
}

.track-number {
    font-weight: bold;
    min-width: 25px;
    font-size: 0.8rem;
}

.track-details {
    flex: 1;
}

.track-name {
    font-weight: bold;
    font-size: 0.85rem;
    margin-bottom: 2px;
}

.track-artist-name {
    font-size: 0.75rem;
}

.loading {
    text-align: center;
    padding: 40px 20px;
    font-size: 0.9rem;
}

.error {
    text-align: center;
    padding: 20px;
    border: 2px solid black;
    border-radius: 8px;
    margin: 10px;
    font-size: 0.9rem;
}

#device-list {
    position: fixed;
    bottom: 60px; /* Position above the smaller fixed controls */
    left: 50%;
    transform: translateX(-50%);
    width: calc(100% - 30px);
    max-width: 470px;
    border: 2px solid black;
    border-radius: 8px;
    background: white;
    z-index: 1001;
    max-height: 300px;
    overflow-y: auto;
}

.device-header {
    padding: 10px 15px;
    border-bottom: 2px solid black;
    font-weight: bold;
    font-size: 0.9rem;
    background: black;
    color: white;
}

.device-item {
    padding: 12px 15px;
    border-bottom: 1px solid black;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.device-item:last-child {
    border-bottom: none;
}

.device-item:hover {
    background: black;
    color: white;
}

.device-item.active {
    background: black;
    color: white;
    font-weight: bold;
}

.device-info {
    flex: 1;
}

.device-name {
    font-weight: bold;
    font-size: 0.9rem;
    margin-bottom: 2px;
}

.device-type {
    font-size: 0.8rem;
}

.device-status {
    font-size: 0.8rem;
    font-weight: bold;
}

.nav-header {
    display: none;
}

.nav-title {
    font-weight: bold;
    font-size: 1rem;
}

.nav-buttons {
    display: flex;
    gap: 10px;
}

.nav-btn {
    background: black;
    color: white;
    border: 2px solid black;
    border-radius: 4px;
    padding: 6px 10px;
    font-size: 0.7rem;
    font-weight: bold;
    cursor: pointer;
    text-decoration: none;
    font-family: Roboto, -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    min-height: 32px;
    min-width: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: rgba(0,0,0,0.1);
}

.nav-btn:hover,
.nav-btn:active {
    background: white;
    color: black;
}

.filter-section {
    margin-top: 3px;
    padding-top: 3px;
}

.filter-buttons {
    display: flex;
    gap: 8px;
    margin-bottom: 3px;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
}

.filter-left {
    display: flex;
    gap: 8px;
}

.filter-right {
    display: flex;
    gap: 8px;
}

.filter-btn {
    background: white;
    color: black;
    border: 2px solid black;
    border-radius: 4px;
    padding: 6px 10px;
    font-size: 0.7rem;
    font-weight: bold;
    cursor: pointer;
    font-family: Roboto, -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
    min-height: 32px;
    min-width: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-tap-highlight-color: rgba(0,0,0,0.1);
}

.filter-btn:hover,
.filter-btn:active {
    background: black;
    color: white;
}

.filter-btn.active {
    background: black;
    color: white;
}

.filter-info {
    font-size: 0.75rem;
    color: black;
    opacity: 0.8;
    text-align: center;
}

/* Tablet styles */
@media (min-width: 768px) {
    .container {
        margin-top: 20px;
        max-width: 600px;
        margin-bottom: 140px; /* More space for larger controls */
    }
    
    .header {
        padding: 10px 20px;
    }
    
    .header h1 {
        font-size: 1.5rem;
        margin-bottom: 15px;
    }
    
    .header p {
        font-size: 1rem;
    }
    
    .player-section {
        padding: 15px 20px;
    }
    
    .track-title {
        font-size: 1rem;
    }
    
    .track-artist {
        font-size: 0.85rem;
    }
    
    .control-btn {
        padding: 12px 18px;
        font-size: 1rem;
        min-height: 48px;
    }
    
    .track-item {
        padding: 15px 20px;
    }
    
    .track-name {
        font-size: 1rem;
    }
    
    .track-artist-name {
        font-size: 0.85rem;
    }
    
    #device-list {
        bottom: 150px; /* More space for larger tablet controls */
    }
}

/* Desktop styles */
@media (min-width: 1024px) {
    .container {
        max-width: 700px;
        margin-top: 20px;
        margin-bottom: 100px; /* Proper spacing for desktop controls */
        border-radius: 12px; /* Restore rounded corners on desktop */
    }
    
    .playlist-section {
        max-height: calc(100vh - 200px); /* More conservative height for desktop */
    }
    
    .header h1 {
        font-size: 1.8rem;
    }
    
    .player-section {
        padding: 12px 20px;
    }
    
    .track-title {
        font-size: 0.9rem;
    }
    
    .track-artist {
        font-size: 0.8rem;
    }
    
    .control-btn {
        padding: 8px 12px;
        font-size: 0.8rem;
        min-height: 36px;
        min-width: 36px;
    }
    
    .nav-btn {
        padding: 8px 12px;
        font-size: 0.8rem;
        min-height: 36px;
        min-width: 36px;
    }
    
    .filter-btn {
        padding: 8px 12px;
        font-size: 0.8rem;
        min-height: 36px;
        min-width: 36px;
    }
    
    #device-list {
        bottom: 80px; /* Adjust for smaller desktop controls */
    }
}