:root{
  --bg:#070a0f;--panel:#101722;--panel2:#151e2b;--text:#f5f7fa;--muted:#8d99a8;
  --gold:#d8b06a;--gold2:#f0cf91;--cyan:#56d6e8;--line:#223041;--soft:#0c121a;
}
*{box-sizing:border-box}
html,body{min-height:100%}
body{margin:0;background:
  radial-gradient(circle at 85% -5%,#163343 0,transparent 26%),
  radial-gradient(circle at 8% 18%,#32271444 0,transparent 22%),
  linear-gradient(180deg,#090d13 0,#070a0f 100%);
  color:var(--text);font-family:Inter,system-ui,-apple-system,sans-serif}
button,input{font:inherit}
button{color:inherit;-webkit-tap-highlight-color:transparent}
.mobile-shell{max-width:760px;margin:auto;padding:24px 18px 184px}
.topbar{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}
.brand-row{display:flex;align-items:center;gap:11px}
.brand-mark{width:38px;height:38px;border-radius:13px;display:grid;place-items:center;
  background:linear-gradient(145deg,#d9b36e,#7b5b2b);color:#0b0a08;font-weight:900;
  box-shadow:0 8px 28px #d5ab5b22}
.eyebrow{font-size:10px;letter-spacing:.24em;color:var(--gold)}
h1{margin:3px 0 0;font-size:26px;letter-spacing:-.03em}
.icon-btn{width:44px;height:44px;border-radius:15px;border:1px solid #263446;background:#101722;
  box-shadow:inset 0 1px #ffffff08}
.hero{position:relative;overflow:hidden;min-height:208px;padding:25px;border-radius:30px;
  background:linear-gradient(135deg,#172538 0,#111925 58%,#0d131b 100%);
  border:1px solid #263548;display:flex;align-items:end;justify-content:space-between;
  box-shadow:0 20px 60px #0006}
.hero::before{content:"";position:absolute;inset:0;background:
  linear-gradient(125deg,transparent 40%,#58d6e80b 60%,transparent 78%)}
.hero-glow{position:absolute;width:220px;height:220px;right:-40px;top:-60px;border-radius:50%;
  background:radial-gradient(circle,#51d7ea55 0,#51d7ea16 38%,transparent 70%)}
.hero .copy{position:relative;z-index:1;max-width:72%}
.hero span{font-size:10px;color:var(--gold2);letter-spacing:.18em}
.hero h2{font-size:27px;line-height:1.08;margin:9px 0 8px;letter-spacing:-.025em}
.hero p{color:var(--muted);margin:0;font-size:14px}
.round-play{position:relative;z-index:1;width:60px;height:60px;border:0;border-radius:50%;
  background:linear-gradient(145deg,var(--gold2),#bf9250);color:#15100a;font-size:20px;
  box-shadow:0 12px 34px #d8b06a35}
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}
.quick-card{border:1px solid #202c3a;background:#0d141d;border-radius:18px;padding:13px 12px}
.quick-card b{display:block;font-size:16px}.quick-card span{font-size:11px;color:var(--muted)}
.section{margin-top:28px}
.section-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.section h3{font-size:19px;margin:0 0 13px}
.search-wrap{position:relative;width:52%}
.search{width:100%;border:1px solid var(--line);background:#0d141d;color:#fff;border-radius:14px;padding:11px 13px 11px 34px}
.search-wrap::before{content:"⌕";position:absolute;left:12px;top:8px;color:var(--muted)}
.song-list{display:flex;flex-direction:column;gap:9px}
.song{display:grid;grid-template-columns:58px 1fr auto;gap:12px;align-items:center;
  background:linear-gradient(180deg,#101722,#0e151e);border:1px solid #1d2938;border-radius:19px;padding:9px;
  transition:.18s ease}
.song:active{transform:scale(.992);background:#141e2a}
.song img{width:58px;height:58px;border-radius:14px;object-fit:cover;background:#1c2530}
.song strong{display:block;font-size:14px}.song span{font-size:12px;color:var(--muted)}
.song button{border:0;background:#17202c;width:39px;height:39px;border-radius:50%;font-size:14px}
.bottom-nav{position:fixed;left:50%;transform:translateX(-50%);bottom:0;width:min(100%,760px);
  padding:9px 12px calc(10px + env(safe-area-inset-bottom));display:grid;grid-template-columns:repeat(4,1fr);
  background:#0a0f16ef;backdrop-filter:blur(22px);border-top:1px solid #202b39;z-index:20}
.bottom-nav button{border:0;background:transparent;color:var(--muted);display:grid;gap:3px;font-size:18px}
.bottom-nav span{font-size:10px}.bottom-nav .active{color:var(--gold2)}
.mini-player{position:fixed;left:50%;transform:translateX(-50%);bottom:72px;width:calc(min(100%,760px) - 20px);
  display:grid;grid-template-columns:48px 1fr 38px 46px 38px;gap:7px;align-items:center;
  background:#121a24f5;border:1px solid #2b3949;border-radius:19px;padding:8px;z-index:19;
  backdrop-filter:blur(22px);box-shadow:0 16px 45px #0008}
.hidden{display:none}
.mini-player img{width:48px;height:48px;border-radius:12px;object-fit:cover;background:#222}
.mini-meta{overflow:hidden}.mini-meta strong,.mini-meta span{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mini-meta strong{font-size:13px}.mini-meta span{font-size:11px;color:var(--muted)}
.mini-player button{border:0;background:transparent}.mini-main{background:var(--gold)!important;color:#15100a!important;border-radius:50%;height:40px}
dialog{border:0;padding:0;background:transparent;color:var(--text)}
dialog::backdrop{background:#030507d9;backdrop-filter:blur(12px)}
.player-dialog{width:100%;max-width:760px}
.player-panel{min-height:100dvh;background:
  radial-gradient(circle at 50% 8%,#294052 0,#101722 34%,#080b10 72%);
  padding:26px 24px 40px;text-align:center}
.close{float:right;border:0;background:transparent;font-size:28px}
.now-label{clear:both;padding-top:30px;color:var(--gold);font-size:10px;letter-spacing:.2em}
.now-cover{display:block;width:min(78vw,360px);aspect-ratio:1;margin:36px auto 26px;border-radius:30px;object-fit:cover;
  box-shadow:0 28px 90px #000a,0 0 0 1px #ffffff0c;background:#202833}
.player-panel h2{font-size:28px;margin:0 0 7px;letter-spacing:-.03em}.player-panel p{color:var(--muted)}
#seek{width:100%;margin-top:22px;accent-color:var(--gold)}
.times{display:flex;justify-content:space-between;color:var(--muted);font-size:11px}
.player-actions{display:grid;grid-template-columns:1fr 1fr 78px 1fr 1fr;gap:9px;align-items:center;margin-top:24px}
.player-actions button{height:54px;border:0;background:transparent;font-size:21px}
.play-big{height:72px!important;border-radius:50%;background:linear-gradient(145deg,var(--gold2),#bd8e47)!important;color:#15100a!important;font-size:27px!important}
.repeat-text{margin-top:15px;color:var(--muted);font-size:12px}
.upload-dialog{width:min(92vw,520px)}
.upload-dialog form{background:#111822;border:1px solid #273648;border-radius:25px;padding:22px;box-shadow:0 30px 90px #0009}
.upload-dialog h2{margin-top:4px}.upload-dialog label{display:block;color:var(--muted);font-size:12px;margin:14px 0}
.upload-dialog input{display:block;width:100%;margin-top:6px;padding:12px;border-radius:12px;border:1px solid var(--line);background:#0b1118;color:#fff}
.save-btn{width:100%;padding:13px;border:0;border-radius:14px;background:linear-gradient(145deg,var(--gold2),#bd8e47);color:#17110a;font-weight:800}
#uploadStatus{margin-top:12px;color:var(--cyan);font-size:12px}

.category-scroll{display:flex;gap:9px;overflow-x:auto;padding:18px 2px 2px;scrollbar-width:none}
.category-scroll::-webkit-scrollbar{display:none}
.cat{white-space:nowrap;border:1px solid #233142;background:#0d141d;color:var(--muted);border-radius:999px;padding:9px 13px;font-size:12px}
.cat.active{color:#13100a;background:linear-gradient(145deg,var(--gold2),#bd8e47);border-color:transparent}
.cat.karaoke:not(.active){color:#d5c2ff;border-color:#51427b;background:#19142a}
.karaoke-open{margin-top:20px;border:1px solid #57459a;background:#1a1430;color:#d9ccff;padding:12px 16px;border-radius:14px}
.song-badge{display:inline-block;margin-top:4px!important;color:#d7c8ff!important;background:#21193a;border:1px solid #4d3f78;padding:2px 7px;border-radius:999px;font-size:9px!important}
.upload-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.upload-dialog select,.upload-dialog textarea{display:block;width:100%;margin-top:6px;padding:12px;border-radius:12px;border:1px solid var(--line);background:#0b1118;color:#fff}
.karaoke-dialog{width:100%;max-width:760px}
.karaoke-screen{position:relative;min-height:100dvh;background:#07090d;overflow:hidden;display:grid;grid-template-rows:auto 1fr auto auto;padding:18px 18px calc(24px + env(safe-area-inset-bottom))}
.karaoke-bg{position:absolute;inset:0;background-size:cover;background-position:center;filter:blur(20px) brightness(.24);transform:scale(1.08)}
.karaoke-screen>*:not(.karaoke-bg){position:relative;z-index:1}
.karaoke-head{display:grid;grid-template-columns:44px 1fr 44px;align-items:center;gap:10px}
.karaoke-head button{height:42px;border:1px solid #2b3542;background:#0d1218cc;border-radius:13px}
.karaoke-head strong,.karaoke-head span{display:block}.karaoke-head span{font-size:12px;color:var(--muted)}
.lyrics-stage{display:flex;align-items:center;justify-content:center;overflow:hidden;padding:24px 8px}
.lyrics-box{width:100%;max-height:58vh;overflow:auto;text-align:center;padding:26px 18px;border-radius:24px;scroll-behavior:smooth}
.lyrics-box.dark{background:#05070ac7}.lyrics-box.soft{background:#0c101680}.lyrics-box.clear{background:transparent}
.lyric-line{font-size:40px;line-height:1.28;font-weight:760;color:#787f89;opacity:.58;margin:18px 0;transition:.2s ease;text-wrap:balance}
.lyric-line.near{color:#d7dde4;opacity:.84}
.lyric-line.active{color:var(--lyric-active,#f3c86f);opacity:1;text-shadow:0 0 24px color-mix(in srgb,var(--lyric-active,#f3c86f) 55%,transparent);transform:scale(1.03)}
.karaoke-progress{display:grid;grid-template-columns:42px 1fr 42px;gap:9px;align-items:center;font-size:11px;color:#a2acb9}
.karaoke-progress input{width:100%;accent-color:#7c5cff}
.karaoke-controls{display:grid;grid-template-columns:1fr 1fr 74px 1fr 1fr;align-items:center;text-align:center;margin-top:14px}
.karaoke-controls button{border:0;background:transparent;font-size:21px}.karaoke-controls small{display:block;font-size:8px;color:var(--muted)}
.karaoke-main{height:68px!important;border-radius:50%;background:linear-gradient(145deg,#8c6cff,#5d3ce0)!important;box-shadow:0 0 32px #7c5cff66}
.lyric-settings{position:absolute!important;right:18px;top:74px;width:min(310px,calc(100% - 36px));background:#0d1218f7;border:1px solid #313a48;border-radius:18px;padding:16px;z-index:5!important;box-shadow:0 20px 70px #000b}
.lyric-settings h3{margin:0 0 12px}.lyric-settings label{display:block;font-size:12px;color:var(--muted);margin:12px 0}
.lyric-settings input,.lyric-settings select{width:100%;margin-top:7px}
@media(max-width:420px){.lyric-line{font-size:34px}.lyrics-box{padding:20px 8px}}

.private-app.hidden{display:none!important}
.auth-gate{min-height:100dvh;display:grid;place-items:center;padding:24px;background:
  radial-gradient(circle at 50% 0,#183342 0,transparent 35%),
  linear-gradient(180deg,#080b10,#05070a)}
.auth-gate.hidden{display:none!important}
.auth-card{width:min(420px,100%);background:#0d141ddd;border:1px solid #263445;border-radius:28px;padding:28px;box-shadow:0 30px 90px #0009;backdrop-filter:blur(18px)}
.auth-logo{width:56px;height:56px;border-radius:18px;display:grid;place-items:center;background:linear-gradient(145deg,var(--gold2),#ad7e3d);color:#15100a;font-size:24px;font-weight:900;margin-bottom:18px}
.auth-card h1{font-size:28px;margin:6px 0 8px}.auth-card p{color:var(--muted);line-height:1.5;margin:0 0 22px}
.auth-card label{display:block;color:var(--muted);font-size:12px;margin:14px 0}
.auth-card input{display:block;width:100%;margin-top:6px;padding:13px;border-radius:13px;border:1px solid var(--line);background:#090e15;color:#fff}
.auth-card button{width:100%;margin-top:8px;padding:13px;border:0;border-radius:14px;background:linear-gradient(145deg,var(--gold2),#bd8e47);color:#17110a;font-weight:800}
#loginStatus{margin-top:12px;color:var(--cyan);font-size:12px;min-height:18px}
.top-actions{display:flex;gap:8px}.logout-btn{color:#d5a7a7}


.password-field{position:relative}
.password-field input{padding-right:46px!important}
.password-toggle{position:absolute!important;right:7px;top:50%;transform:translateY(-50%);width:34px!important;height:34px!important;margin:0!important;padding:0!important;border:0!important;background:transparent!important;color:#aeb8c5!important;display:grid!important;place-items:center}
.login-options{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:12px 0 14px}
.remember-row{display:flex!important;align-items:center;gap:7px;margin:0!important;color:var(--muted);font-size:12px!important}
.remember-row input{width:auto!important;margin:0!important}
.link-btn{width:auto!important;margin:0!important;padding:0!important;background:transparent!important;color:var(--gold2)!important;font-weight:600!important;font-size:12px}
.auth-status{min-height:18px;margin-top:12px;font-size:12px;line-height:1.4}
.auth-status.error{color:#ff8f96!important}
.auth-status.success{color:#73ddb0!important}
.auth-dialog{width:min(92vw,460px)}
.auth-dialog form{background:#101722;border:1px solid #263445;border-radius:24px;padding:22px;color:#fff}
.auth-dialog p{color:var(--muted);font-size:13px;line-height:1.5}
.auth-dialog label{display:block;color:var(--muted);font-size:12px;margin:14px 0}
.auth-dialog input{display:block;width:100%;margin-top:6px;padding:12px;border-radius:12px;border:1px solid var(--line);background:#0b1118;color:#fff}

.mobile-cover-upload{display:grid;grid-template-columns:92px 1fr;gap:12px;align-items:center;margin-top:7px}
.mobile-cover-preview{width:92px;height:92px;border-radius:16px;border:1px solid #2a3847;background:linear-gradient(145deg,#151e29,#0e141c);display:grid;place-items:center;overflow:hidden;color:var(--gold);font-size:24px}
.mobile-cover-preview img{width:100%;height:100%;object-fit:cover}
.mobile-cover-upload small{display:block;margin-top:7px;color:#7f8b99}
.secondary-btn{width:auto!important;margin-top:8px!important;padding:8px 10px!important;background:#131b25!important;color:#e6ebef!important;border:1px solid #2b3948!important;font-weight:600!important}

/* V1.6 Midnight Cyan/Violet */
:root{--bg:#070A12;--panel:#0E1522;--panel2:#121B2B;--text:#F4F7FB;--muted:#7F8CA0;--gold:#55D6E8;--gold2:#7BE7F4;--cyan:#55D6E8;--line:#1E2A3B}
body{background:radial-gradient(circle at 85% -5%,#193453 0,transparent 27%),radial-gradient(circle at 10% 10%,#2B1F5E33 0,transparent 26%),linear-gradient(180deg,#080B13,#070A12)}
.brand-mark{background:linear-gradient(145deg,#55D6E8,#8A6CFF);color:#071018}
.hero{background:radial-gradient(circle at 88% 15%,#55D6E833 0,transparent 26%),linear-gradient(135deg,#101B2A,#0D1420);border-color:#213149}
.round-play,.play-big,.save-btn{background:linear-gradient(145deg,#55D6E8,#8A6CFF)!important;color:#071018!important}
.cat.active{background:linear-gradient(145deg,#55D6E8,#8A6CFF);color:#071018}
.bottom-nav .active{color:#7BE7F4}
.mini-main{background:linear-gradient(145deg,#55D6E8,#8A6CFF)!important;color:#071018!important}
.song{background:linear-gradient(180deg,#0E1520,#0A111A);border-color:#1D2A3A}


/* V1.6.4 Branding */
.app-brand-row{display:flex;align-items:center;min-height:42px}
.app-brand-logo{display:block;width:154px;height:auto}
.auth-app-logo{display:block;width:176px;height:auto;margin-bottom:18px}


/* V1.6.5 Lyric Manager */
.song{
  grid-template-columns:58px 1fr auto;
}
.song-actions{
  display:flex;
  align-items:center;
  gap:6px;
}
.song-lyric-btn{
  border:1px solid #3A3266!important;
  background:#16132A!important;
  color:#C2BAFF!important;
  width:auto!important;
  height:38px!important;
  border-radius:12px!important;
  padding:0 9px!important;
  font-size:10px!important;
}
.song-lyric-btn.has-lyric{
  border-color:#285265!important;
  background:#10232D!important;
  color:#7BE7F4!important;
}
.lyric-edit-dialog textarea{
  display:block;
  width:100%;
  margin-top:6px;
  padding:12px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#0B1118;
  color:#fff;
  resize:vertical;
}
.lyric-edit-dialog small{
  display:block;
  color:#7F8B99;
  margin:7px 0 14px;
}


/* V1.6.7 Karaoke Focus Mobile */
.karaoke-screen{
  grid-template-rows:auto 1fr auto auto;
  padding:16px 16px calc(22px + env(safe-area-inset-bottom));
  background:#070A12;
}

.karaoke-bg{
  filter:blur(34px) brightness(.16) saturate(.8);
  transform:scale(1.18);
  opacity:.72;
}

.lyrics-stage{
  padding:8px 0;
  overflow:hidden;
}

.lyrics-box{
  width:100%;
  max-height:62vh;
  padding:14vh 8px;
  overflow-y:auto;
  background:transparent!important;
  border-radius:0;
  scrollbar-width:none;
  -ms-overflow-style:none;
  mask-image:linear-gradient(to bottom,transparent 0%,black 16%,black 84%,transparent 100%);
  -webkit-mask-image:linear-gradient(to bottom,transparent 0%,black 16%,black 84%,transparent 100%);
}

.lyrics-box::-webkit-scrollbar{
  display:none;
}

.lyric-line{
  margin:15px 0;
  padding:0 10px;
  font-size:25px;
  line-height:1.34;
  font-weight:650;
  letter-spacing:-.02em;
  color:#667181;
  opacity:.34;
  transform:scale(.95);
  transition:.24s ease;
  text-wrap:balance;
}

.lyric-line.near{
  color:#AAB4C1;
  opacity:.62;
  transform:scale(.98);
}

.lyric-line.active{
  color:#F5FCFF;
  opacity:1;
  font-size:31px;
  font-weight:760;
  transform:scale(1);
  text-shadow:0 0 22px rgba(85,214,232,.16);
}

.karaoke-controls{
  margin-top:10px;
}

.karaoke-controls button{
  color:#8E9AAA;
}

.karaoke-main{
  background:linear-gradient(145deg,#55D6E8,#8A6CFF)!important;
  color:#071018!important;
  box-shadow:0 10px 28px rgba(85,214,232,.18);
}


/* V1.6.8 AI Lyric Mobile */
.ai-lyric-mobile-actions{
  display:grid;
  gap:8px;
  margin:13px 0 8px;
}
.ai-mobile-btn{
  width:100%;
  display:grid;
  grid-template-columns:40px 1fr;
  align-items:center;
  gap:10px;
  text-align:left;
  padding:10px!important;
  border-radius:14px!important;
  border:1px solid #29384D!important;
  background:#101925!important;
}
.ai-mobile-btn:nth-child(2){
  border-color:#3B326D!important;
  background:#16132B!important;
}
.ai-mobile-btn b{
  width:40px;
  height:40px;
  border-radius:12px;
  display:grid;
  place-items:center;
  background:linear-gradient(135deg,#173847,#28225E);
  color:#89EBF4;
  font-size:12px;
}
.ai-mobile-btn strong,.ai-mobile-btn small{display:block}
.ai-mobile-btn strong{font-size:12px;color:#F1F8FB}
.ai-mobile-btn small{font-size:10px;color:#7E8B9C;margin-top:2px}
.ai-lyric-status{
  min-height:18px;
  font-size:11px;
  color:#7E8CA0;
}
.ai-lyric-status.working{color:#7BE7F4}
.ai-lyric-status.success{color:#71DBB0}
.ai-lyric-status.error{color:#FF8D98}