/* Listen Together — tối giản, tối, xem tốt trên điện thoại */
:root {
  --bg: #121218;
  --bg-2: #1a1a22;
  --card: #1e1e28;
  --card-2: #25252f;
  --border: #2e2e3a;
  --text: #ececf1;
  --text-dim: #9a9aa8;
  --accent: #1db954;        /* xanh Spotify */
  --accent-2: #17a34a;
  --danger: #e5534b;
  --warn: #e0a030;
  --radius: 14px;
}

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

body {
  background: radial-gradient(1200px 800px at 70% -10%, #1c2b22 0%, var(--bg) 55%);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  min-height: 100vh;
}

.hidden { display: none !important; }

/* ========== Màn hình home ========== */
#screen-home {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
}
.home-card {
  width: 100%;
  max-width: 440px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}
.logo { font-size: 52px; }
.home-card h1 { font-size: 28px; margin: 8px 0 4px; letter-spacing: .5px; }
.sub { color: var(--text-dim); font-size: 13px; margin-bottom: 22px; }

.home-card label, .link-card label {
  display: block; text-align: left; font-size: 13px; color: var(--text-dim); margin: 12px 0 6px;
}

input[type="text"] {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 12px 14px;
  font-size: 15px;
  outline: none;
  transition: border-color .15s;
}
input[type="text"]:focus { border-color: var(--accent); }

.home-actions { margin-top: 16px; display: flex; flex-direction: column; gap: 10px; }
.room-code-input { text-transform: uppercase; letter-spacing: 4px; text-align: center; font-size: 18px !important; }

.divider { display: flex; align-items: center; gap: 10px; color: var(--text-dim); font-size: 12px; margin: 6px 0; }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }

.btn {
  border: none; border-radius: 10px; padding: 12px 18px; font-size: 15px; font-weight: 600;
  cursor: pointer; transition: transform .1s, filter .15s; color: #fff;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--accent); color: #06270f; }
.btn-primary:hover { filter: brightness(1.1); }
.btn-secondary { background: var(--card-2); border: 1px solid var(--border); color: var(--text); }
.btn-secondary:hover { border-color: var(--accent); }
.btn-ghost { background: transparent; border: 1px solid var(--border); color: var(--text-dim); }
.btn-ghost:hover { color: var(--text); border-color: var(--accent); }
.btn-small { padding: 8px 12px; font-size: 13px; }
.btn-danger { background: var(--danger); }
.btn-approve { background: var(--accent); color: #06270f; padding: 6px 14px; border: none; border-radius: 8px; font-weight: 700; cursor: pointer; }
.btn-deny { background: transparent; border: 1px solid var(--danger); color: var(--danger); padding: 6px 14px; border-radius: 8px; cursor: pointer; }

.error-text { color: var(--danger); font-size: 13px; min-height: 18px; margin-top: 10px; }
.ok-text { color: var(--accent); font-size: 13px; min-height: 18px; margin-top: 6px; }
.footnote { color: var(--text-dim); font-size: 11px; margin-top: 18px; line-height: 1.5; }

/* ========== Phòng ========== */
.room-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 18px; border-bottom: 1px solid var(--border);
  background: rgba(18,18,24,.85); backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 10;
}
.room-info { display: flex; align-items: center; gap: 10px; }
.room-label { color: var(--text-dim); font-size: 13px; }
.room-code { font-size: 22px; font-weight: 800; letter-spacing: 4px; color: var(--accent); font-family: "Consolas", monospace; }

.icon-btn { background: none; border: none; color: var(--text-dim); font-size: 18px; cursor: pointer; padding: 4px; }
.icon-btn:hover { color: var(--text); }
.icon-btn.big { font-size: 26px; }

.room-main { max-width: 1080px; margin: 0 auto; padding: 18px 14px 60px; display: flex; flex-direction: column; gap: 14px; }

.card {
  background: var(--card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px;
}
.card h3 { font-size: 16px; }
.card-title-row { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; flex-wrap: wrap; }

.count-badge { background: var(--card-2); border-radius: 20px; padding: 1px 9px; font-size: 12px; color: var(--accent); }

/* Now playing */
.np-row { display: flex; gap: 16px; align-items: center; }
.np-cover {
  width: 96px; height: 96px; border-radius: 12px; object-fit: cover;
  background: var(--card-2); flex-shrink: 0; border: 1px solid var(--border);
}
.np-meta { min-width: 0; }
.type-badge { display: inline-block; font-size: 10px; font-weight: 800; letter-spacing: 1px; background: var(--accent); color: #06270f; border-radius: 5px; padding: 2px 8px; margin-bottom: 6px; }
.type-badge.yt { background: #ff4e45; color: #fff; }
.type-badge.sc { background: #ff7700; color: #fff; }
.type-badge.sp { background: #1db954; color: #06270f; }
.np-meta h2 { font-size: 18px; line-height: 1.35; overflow-wrap: anywhere; }
.np-meta p { color: var(--text-dim); font-size: 13px; margin-top: 4px; overflow-wrap: anywhere; }

.player-hidden { display: none !important; }
#soundcloudPlayer { width: 100%; height: 166px; border: 0; border-radius: 10px; margin-top: 12px; }
#soundcloudPlayer.visible { display: block !important; }
#spotifyPlayer iframe, #spotifyPlayer > div { border-radius: 12px; }
#spotifyPlayer.visible { display: block !important; margin-top: 12px; }

.progress-row { display: flex; align-items: center; gap: 10px; margin-top: 16px; }
.time { font-size: 12px; color: var(--text-dim); min-width: 38px; text-align: center; font-variant-numeric: tabular-nums; }
#progressBar { flex: 1; appearance: none; height: 6px; border-radius: 3px; background: var(--card-2); outline: none; cursor: pointer; }
#progressBar::-webkit-slider-thumb { appearance: none; width: 14px; height: 14px; border-radius: 50%; background: var(--accent); cursor: pointer; }
#progressBar:disabled { opacity: .4; cursor: default; }

.control-row { display: flex; align-items: center; justify-content: center; gap: 22px; margin-top: 14px; }
.play-btn {
  width: 62px; height: 62px; border-radius: 50%; border: none; cursor: pointer;
  background: var(--accent); color: #06270f; font-size: 26px;
  display: flex; align-items: center; justify-content: center;
  transition: transform .1s, filter .15s;
}
.play-btn:hover { filter: brightness(1.1); transform: scale(1.05); }
.guest-hint { text-align: center; color: var(--text-dim); font-size: 13px; margin-top: 12px; }

.tap-to-play {
  display: block; margin: 14px auto 0; padding: 14px 34px; font-size: 17px; font-weight: 700;
  background: var(--warn); color: #241500; border: none; border-radius: 12px; cursor: pointer;
  animation: pulse 1.6s infinite;
}
@keyframes pulse { 0%,100% { transform: scale(1); } 50% { transform: scale(1.05); } }

/* Link card */
.link-row { display: flex; gap: 8px; }
.link-row input { flex: 1; }
.spotify-note { font-size: 11px; color: var(--warn); margin-top: 8px; }

/* Hai cột */
.two-col { display: grid; grid-template-columns: 1.2fr 1fr; gap: 14px; }
@media (max-width: 820px) { .two-col { grid-template-columns: 1fr; } }

/* Danh sách bài */
.track-list { list-style: none; display: flex; flex-direction: column; gap: 6px; max-height: 340px; overflow-y: auto; }
.track-item {
  display: flex; align-items: center; gap: 10px; padding: 8px 10px;
  border-radius: 10px; background: var(--card-2); border: 1px solid transparent;
}
.track-item:hover { border-color: var(--border); }
.track-item .t-cover { width: 44px; height: 44px; border-radius: 8px; object-fit: cover; background: var(--bg-2); flex-shrink: 0; }
.track-item .t-meta { min-width: 0; flex: 1; }
.track-item .t-title { font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.track-item .t-sub { font-size: 11px; color: var(--text-dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.track-item .t-actions { display: flex; gap: 6px; flex-shrink: 0; }
.mini-btn {
  font-size: 11px; padding: 5px 10px; border-radius: 7px; border: 1px solid var(--border);
  background: transparent; color: var(--text); cursor: pointer; white-space: nowrap;
}
.mini-btn:hover { border-color: var(--accent); color: var(--accent); }
.mini-btn.primary { background: var(--accent); border-color: var(--accent); color: #06270f; font-weight: 700; }
.mini-btn.primary:hover { color: #06270f; filter: brightness(1.1); }

.empty-hint { color: var(--text-dim); font-size: 13px; text-align: center; padding: 14px 0 6px; }

/* Thành viên */
.member-list { list-style: none; display: flex; flex-direction: column; gap: 6px; margin-bottom: 8px; }
.member-item { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 8px; }
.member-item:hover { background: var(--card-2); }
.avatar { width: 32px; height: 32px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 14px; font-weight: 700; background: var(--card-2); color: var(--accent); flex-shrink: 0; text-transform: uppercase; }
.member-name { font-size: 13px; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.host-badge { font-size: 10px; background: var(--accent); color: #06270f; padding: 2px 8px; border-radius: 10px; font-weight: 800; }

.approval-area h4 { font-size: 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 1px; margin: 14px 0 6px; }
.approval-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.approval-item { background: var(--card-2); border: 1px solid var(--border); border-radius: 10px; padding: 8px 10px; }
.approval-item .a-title { font-size: 13px; font-weight: 600; overflow-wrap: anywhere; }
.approval-item .a-sub { font-size: 11px; color: var(--text-dim); margin: 3px 0 8px; }
.approval-actions { display: flex; gap: 8px; }

/* Thư viện */
.search-input { max-width: 260px; }
.library-list { max-height: 380px; }
.dsf-note { font-size: 12px; color: var(--warn); margin-bottom: 8px; }

/* Toast + overlay */
.toast {
  position: fixed; bottom: 26px; left: 50%; transform: translateX(-50%);
  background: var(--card-2); border: 1px solid var(--accent); color: var(--text);
  padding: 10px 20px; border-radius: 10px; font-size: 13px; z-index: 100;
  box-shadow: 0 8px 30px rgba(0,0,0,.5);
}
.overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.7); z-index: 200;
  display: flex; align-items: center; justify-content: center; padding: 20px;
}
.overlay-box { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 30px; text-align: center; max-width: 380px; }
.overlay-box h2 { margin-bottom: 10px; }
.overlay-box p { color: var(--text-dim); margin-bottom: 18px; }

/* Điện thoại */
@media (max-width: 600px) {
  .np-cover { width: 72px; height: 72px; }
  .np-meta h2 { font-size: 16px; }
  .link-row { flex-direction: column; }
  .search-input { max-width: 100%; width: 100%; }
  .room-code { font-size: 18px; }
}