* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; background: #111; color: #eee; min-height: 100vh; }
#app { width: 100%; max-width: 1200px; margin: 0 auto; padding: 1rem; display: flex; flex-direction: column; min-height: 100vh; }
h1 { font-size: 1.2rem; color: #888; margin-bottom: 1rem; display: flex; align-items: center; gap: 0.5rem; }
h3 { font-size: 0.9rem; color: #666; margin-bottom: 0.5rem; text-transform: uppercase; letter-spacing: 0.05em; }
#sync-indicator { width: 8px; height: 8px; border-radius: 50%; background: #4e8; display: none; flex-shrink: 0; }
#sync-indicator.visible { display: inline-block; }
#sync-indicator.disconnected { background: #e44; }

/* Header */
#header-row { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1rem; }
#auth-section { display: flex; gap: 0.5rem; align-items: center; }
#auth-section .user-info { display: flex; align-items: center; gap: 0.5rem; }
#auth-section .username { color: #4e8; font-weight: 600; }
#auth-section .admin-badge { background: #c4f; color: #111; padding: 0.1rem 0.4rem; border-radius: 3px; font-size: 0.7rem; }
#stream-select select { background: #222; color: #eee; border: 1px solid #333; padding: 0.4rem 0.8rem; border-radius: 4px; font-size: 0.9rem; }

/* Main content - library and playlist */
#main-content { display: flex; gap: 1rem; flex: 1; min-height: 0; margin-bottom: 1rem; }
#channels-panel { flex: 0 0 180px; background: #1a1a1a; border-radius: 8px; padding: 1rem; display: flex; flex-direction: column; min-height: 300px; max-height: 60vh; }
#channels-list { flex: 1; overflow-y: auto; }
#channels-list .channel-item { padding: 0.5rem 0.75rem; border-radius: 4px; font-size: 0.9rem; display: flex; flex-direction: column; gap: 0.25rem; }
#channels-list .channel-item.active { background: #2a4a3a; color: #4e8; }
#channels-list .channel-header { display: flex; justify-content: space-between; align-items: center; cursor: pointer; padding: 0.25rem 0; border-radius: 4px; }
#channels-list .channel-header:hover { background: #222; }
#channels-list .channel-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#channels-list .listener-count { font-size: 0.75rem; color: #666; flex-shrink: 0; margin-left: 0.5rem; }
#channels-list .channel-listeners { display: flex; flex-direction: column; margin-left: 1rem; border-left: 2px solid #333; padding-left: 0.5rem; }
#channels-list .listener { font-size: 0.75rem; color: #aaa; padding: 0.15rem 0; position: relative; }
#channels-list .listener::before { content: ""; position: absolute; left: -0.5rem; top: 50%; width: 0.4rem; height: 2px; background: #333; }
#channels-list .listener-mult { color: #666; font-size: 0.65rem; }
#library-panel, #playlist-panel { flex: 2; background: #1a1a1a; border-radius: 8px; padding: 1rem; display: flex; flex-direction: column; min-height: 300px; max-height: 60vh; }
#playlists-panel { flex: 1; background: #1a1a1a; border-radius: 8px; padding: 1rem; display: flex; flex-direction: column; min-height: 300px; max-height: 60vh; min-width: 180px; max-width: 250px; }
#playlists-list { flex: 1; overflow-y: auto; }
#playlists-list .playlist-item { padding: 0.5rem 0.75rem; border-radius: 4px; cursor: pointer; font-size: 0.9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#playlists-list .playlist-item:hover { background: #222; }
#playlists-list .playlist-item.active { background: #2a3a4a; color: #8cf; }
#playlist-title { margin: 0 0 0.5rem 0; }
.panel-header { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.5rem; }
.panel-header h3 { margin: 0; flex-shrink: 0; }
.panel-header select { flex: 1; background: #222; color: #eee; border: 1px solid #333; padding: 0.3rem 0.5rem; border-radius: 4px; font-size: 0.8rem; }
.panel-header button { background: #333; color: #eee; border: 1px solid #444; width: 28px; height: 28px; border-radius: 4px; cursor: pointer; font-size: 1rem; line-height: 1; padding: 0; }
.panel-header button:hover { background: #444; }
.new-playlist-input { flex: 1; background: #222; color: #eee; border: 1px solid #333; padding: 0.3rem 0.5rem; border-radius: 4px; font-size: 0.8rem; }
.btn-submit-playlist { background: #2a4a3a; color: #4e8; border: 1px solid #3a5a4a; width: 28px; height: 28px; border-radius: 4px; cursor: pointer; font-size: 1.2rem; line-height: 1; padding: 0; }
.btn-submit-playlist:hover { background: #3a5a4a; }
#library, #playlist { flex: 1; overflow-y: auto; }
#library .track, #playlist .track { padding: 0.5rem 0.75rem; border-radius: 4px; cursor: pointer; font-size: 0.9rem; display: flex; justify-content: space-between; align-items: center; position: relative; }
#library .track:hover, #playlist .track:hover { background: #222; }
#playlist .track.active { background: #2a4a3a; color: #4e8; }
.cache-indicator { width: 3px; height: 100%; position: absolute; left: 0; top: 0; border-radius: 4px 0 0 4px; }
.track.cached .cache-indicator { background: #4e8; }
.track.not-cached .cache-indicator { background: #ea4; }
.track-title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.track-actions { display: flex; align-items: center; gap: 0.5rem; flex-shrink: 0; }
.track-actions .duration { color: #666; font-size: 0.8rem; }
.track-actions .btn-add, .track-actions .btn-remove { width: 20px; height: 20px; display: flex; align-items: center; justify-content: center; background: #333; border-radius: 3px; font-size: 0.9rem; opacity: 0; transition: opacity 0.2s; }
.track:hover .btn-add, .track:hover .btn-remove { opacity: 0.6; }
.track-actions .btn-add:hover, .track-actions .btn-remove:hover { opacity: 1; background: #444; }
.track-actions .btn-remove { color: #e44; }

/* Player bar */
#player-bar { background: #1a1a1a; border-radius: 8px; padding: 1rem; display: flex; gap: 1rem; align-items: center; }
#now-playing { min-width: 200px; }
#channel-name { font-size: 0.75rem; color: #666; margin-bottom: 0.2rem; }
#track-name { font-size: 1rem; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
#player-controls { flex: 1; }
#progress-row { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.3rem; }
#progress-row.denied { animation: flash-red 0.5s ease-out; }
@keyframes flash-red { 0% { background: #e44; } 100% { background: transparent; } }
#btn-sync { font-size: 0.75rem; cursor: pointer; color: #666; transition: color 0.2s, text-shadow 0.2s; letter-spacing: 0.05em; }
#btn-sync:hover { color: #888; }
#btn-sync.synced { color: #eb0; text-shadow: 0 0 8px #eb0, 0 0 12px #eb0; }
#btn-sync.synced.connected { color: #4e8; text-shadow: 0 0 8px #4e8, 0 0 12px #4e8; }
#btn-prev, #btn-next { font-size: 0.8rem; cursor: pointer; opacity: 0.6; transition: opacity 0.2s; }
#btn-prev:hover, #btn-next:hover { opacity: 1; }
#status-icon { font-size: 0.9rem; width: 1rem; text-align: center; cursor: pointer; }
#progress-container { background: #222; border-radius: 4px; height: 6px; cursor: pointer; position: relative; flex: 1; }
#progress-bar { background: #555; height: 100%; border-radius: 4px; width: 0%; transition: width 0.3s linear; pointer-events: none; }
#progress-bar.playing.synced { background: #4e8; }
#progress-bar.playing.local { background: #c4f; }
#progress-bar.muted { background: #555 !important; }
#seek-tooltip { position: absolute; bottom: 12px; background: #333; color: #eee; padding: 2px 6px; border-radius: 3px; font-size: 0.75rem; pointer-events: none; display: none; transform: translateX(-50%); }
#time { font-size: 0.8rem; color: #888; margin: 0; line-height: 1; white-space: nowrap; }
#buffer-bar { display: flex; gap: 2px; margin-bottom: 0.3rem; }
#buffer-bar .segment { flex: 1; height: 3px; background: #333; border-radius: 2px; }
#buffer-bar .segment.available { background: #396; }
#buffer-bar .segment.loading { background: #666; animation: throb 0.6s ease-in-out infinite alternate; }
@keyframes throb { from { background: #444; } to { background: #888; } }
#download-speed { font-size: 0.65rem; color: #555; text-align: right; }
#volume-controls { display: flex; gap: 0.5rem; align-items: center; }
#btn-mute { font-size: 1.2rem; cursor: pointer; opacity: 0.8; transition: opacity 0.2s; }
#btn-mute:hover { opacity: 1; }
#volume { width: 80px; accent-color: #4e8; }

/* Common */
button { background: #222; color: #eee; border: 1px solid #333; padding: 0.5rem 1.2rem; border-radius: 4px; cursor: pointer; font-size: 0.9rem; }
button:hover { background: #333; }
#status { margin-top: 0.5rem; font-size: 0.8rem; color: #666; text-align: center; }
.empty { color: #666; font-style: italic; }

/* Login panel */
#login-panel { display: flex; flex-direction: column; gap: 1rem; padding: 2rem; background: #1a1a1a; border-radius: 8px; border: 1px solid #333; max-width: 400px; margin: auto; }
#login-panel.hidden { display: none; }
#login-panel h2 { font-size: 1.1rem; color: #888; margin-bottom: 0.5rem; }
#login-panel .tabs { display: flex; gap: 1rem; margin-bottom: 1rem; }
#login-panel .tabs button { background: none; border: none; color: #666; font-size: 1rem; cursor: pointer; padding: 0.5rem 0; border-bottom: 2px solid transparent; }
#login-panel .tabs button.active { color: #4e8; border-bottom-color: #4e8; }
#login-panel input { background: #222; color: #eee; border: 1px solid #333; padding: 0.6rem; border-radius: 4px; font-size: 0.95rem; }
#login-panel .form-group { display: flex; flex-direction: column; gap: 0.5rem; }
#login-panel .form-group.hidden { display: none; }
#login-panel .submit-btn { background: #4e8; color: #111; border: none; padding: 0.6rem; border-radius: 4px; font-size: 0.95rem; cursor: pointer; font-weight: 600; }
#login-panel .submit-btn:hover { background: #5fa; }
#auth-error, #signup-error { color: #e44; font-size: 0.8rem; }
#guest-section { margin-top: 1rem; }
#guest-section.hidden { display: none; }
#guest-section .divider { display: flex; align-items: center; gap: 1rem; margin-bottom: 1rem; color: #666; font-size: 0.85rem; }
#guest-section .divider::before, #guest-section .divider::after { content: ""; flex: 1; height: 1px; background: #333; }
#guest-section .guest-btn { width: 100%; background: #333; color: #eee; border: 1px solid #444; padding: 0.6rem; border-radius: 4px; font-size: 0.95rem; cursor: pointer; }
#guest-section .guest-btn:hover { background: #444; }

#player-content { display: none; flex-direction: column; flex: 1; }
#player-content.visible { display: flex; }

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background-color: #111; border-radius: 4px; }
::-webkit-scrollbar-thumb { background-color: #333; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background-color: #555; }

/* Toast notifications */
#toast-container { position: fixed; top: 1rem; left: 1rem; display: flex; flex-direction: column; gap: 0.5rem; z-index: 1000; pointer-events: none; }
.toast { background: #1a3a2a; color: #4e8; padding: 0.75rem 1rem; border-radius: 6px; border: 1px solid #4e8; box-shadow: 0 4px 12px rgba(0,0,0,0.4); font-size: 0.9rem; animation: toast-in 0.3s ease-out; max-width: 300px; }
.toast.fade-out { animation: toast-out 0.3s ease-in forwards; }
@keyframes toast-in { from { opacity: 0; transform: translateX(-20px); } to { opacity: 1; transform: translateX(0); } }
@keyframes toast-out { from { opacity: 1; transform: translateX(0); } to { opacity: 0; transform: translateX(-20px); } }