:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:#eef2f7;background:#0b0f15;--bg:#0b0f15;--nav:#111821;--panel:#151d27;--panel2:#0f1620;--line:#273344;--muted:#9ba9bb;--text:#eef2f7;--primary:#f4f7fb;--primaryText:#0b1119;--danger:#d65f6a;--success:#55c58b;--warn:#e2b85a}*{box-sizing:border-box}html,body{min-height:100%}body{margin:0;display:flex;min-height:100vh;background:radial-gradient(circle at 85% -10%,#162238 0,transparent 34%),var(--bg);color:var(--text)}nav{width:236px;flex:0 0 236px;background:rgba(17,24,33,.96);border-right:1px solid #1e2938;padding:26px 20px;display:flex;flex-direction:column;gap:8px;position:sticky;top:0;height:100vh}nav b{font-size:21px;letter-spacing:.2px;margin:2px 8px 22px;color:#fff}nav a{color:#cbd5e1;text-decoration:none;padding:11px 13px;border-radius:10px;transition:.15s ease}nav a:hover,nav a.active{background:#202a38;color:#fff}main{flex:1;min-width:0;padding:34px 40px 52px;overflow:auto}.page-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}h1{font-size:38px;line-height:1.1;margin:0 0 12px;letter-spacing:-.7px}h2{font-size:21px;margin:0 0 14px}section{background:rgba(21,29,39,.92);border:1px solid var(--line);border-radius:16px;padding:22px;margin:18px 0;box-shadow:0 12px 38px rgba(0,0,0,.12)}.section-head{display:flex;gap:16px;align-items:center;justify-content:space-between;margin-bottom:16px}.section-head h2{margin:0}.muted{color:var(--muted);font-size:13px}.hint{font-size:12px;color:#7f8da0}.cards{display:grid;grid-template-columns:repeat(5,minmax(150px,1fr));gap:15px;margin:18px 0}.cards div{background:linear-gradient(180deg,#17212e,#121923);border:1px solid var(--line);border-radius:16px;padding:22px}.cards strong{font-size:34px;line-height:1;display:block;margin-bottom:8px}.cards span{color:#9aa7b7;font-size:13px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px;align-items:end}.full{grid-column:1/-1}label{display:flex;flex-direction:column;gap:7px;color:#b7c2d0;font-size:14px}input,select,textarea,button,.btn{font:inherit;border-radius:10px;border:1px solid #344155;background:#0d141d;color:#eef2f7;padding:11px 12px}input:focus,select:focus,textarea:focus{outline:none;border-color:#6d7d92;box-shadow:0 0 0 3px rgba(109,125,146,.15)}select[multiple]{min-height:120px}.actions{display:flex;gap:8px;align-items:end}button,.btn{width:auto;display:inline-flex;align-items:center;justify-content:center;gap:6px;background:#e9eef4;color:#101722;font-weight:700;cursor:pointer;text-decoration:none;white-space:nowrap}button:hover,.btn:hover{filter:brightness(.94)}button.primary,.btn.primary{background:#f8fafc;color:#0a111a}.danger{background:#381a20!important;color:#ffc4ca!important;border-color:#6f2e39!important}.table-wrap{width:100%;overflow:auto;border-radius:10px}table{width:100%;border-collapse:collapse;min-width:850px}th,td{text-align:left;padding:13px 12px;border-bottom:1px solid #273244;vertical-align:middle}th{color:#e9eef7;font-size:13px}td{font-size:14px;color:#d8e0eb}tr:last-child td{border-bottom:0}code,.submono{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;color:#bfe3ff}.submono{font-size:12px;margin-top:4px}.truncate{max-width:430px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.row-actions{display:flex;gap:7px;align-items:center;flex-wrap:wrap}.row-actions form{margin:0}.row-actions button{padding:8px 10px;font-size:12px}.badge{display:inline-flex;align-items:center;padding:5px 8px;border:1px solid #3a4658;border-radius:999px;font-size:11px;line-height:1;margin-top:5px}.badge.good{background:#153425;border-color:#2c6749;color:#aaf3ca}.badge.bad{background:#37191e;border-color:#6d2d37;color:#ffb8c0}.badge.neutral{background:#252b34;border-color:#45505f;color:#d6deea}.count{display:inline-flex;min-width:25px;height:25px;align-items:center;justify-content:center;border-radius:999px;background:#263244;font-size:12px}.search{display:flex;gap:8px;align-items:center;flex-wrap:wrap}.search input{min-width:280px}.search.wide input{flex:1;min-width:320px}.alert,.success,.notice{padding:12px 14px;border-radius:10px;margin:12px 0}.alert{background:#451f24;border:1px solid #813741;color:#ffd3d8}.success{background:#153225;border:1px solid #2d6b4a;color:#bff6d4}.notice{background:#182536;border:1px solid #314861;color:#c8d9ec}.payment-grid{display:grid;grid-template-columns:260px 1fr;gap:24px;align-items:start}.qr{display:block;width:240px;max-width:100%;background:#fff;border-radius:14px;padding:12px}.qr-placeholder{width:240px;height:240px;border:1px dashed #405069;border-radius:14px;display:flex;align-items:center;justify-content:center;color:#8190a3}.kv p{display:grid;grid-template-columns:160px 1fr;gap:12px;border-bottom:1px solid #263244;padding:10px 0;margin:0}.kv p span{color:#93a2b4}.copybox{width:100%}pre{white-space:pre-wrap;word-break:break-word;background:#0d141d;border:1px solid #2d394a;border-radius:10px;padding:14px;max-height:440px;overflow:auto}.login-body{display:grid;place-items:center;background:radial-gradient(circle at 50% 0,#1c2a42 0,transparent 36%),#0b0f15}.login{width:420px;max-width:92vw;margin:auto;background:#141c26;border:1px solid #2a3546;border-radius:18px;padding:30px;box-shadow:0 25px 70px rgba(0,0,0,.35)}.login h1{font-size:30px;margin-bottom:4px}.login form{display:grid;gap:14px;margin-top:22px}.brandmark{width:52px;height:52px;border-radius:14px;background:#f4f7fb;color:#101722;display:grid;place-items:center;font-weight:900;font-size:20px;margin-bottom:18px}@media(max-width:1200px){.cards{grid-template-columns:repeat(3,minmax(150px,1fr))}}@media(max-width:850px){body{display:block}nav{width:100%;height:auto;position:static;flex-direction:row;overflow:auto;border-right:0;border-bottom:1px solid #1e2938;padding:12px}nav b{display:none}nav a{white-space:nowrap}main{padding:22px 15px}.cards{grid-template-columns:repeat(2,minmax(0,1fr))}h1{font-size:30px}.section-head{align-items:flex-start;flex-direction:column}.search{width:100%}.search input,.search.wide input{min-width:0;width:100%}.payment-grid{grid-template-columns:1fr}.kv p{grid-template-columns:1fr}.qr{width:220px}}@media(max-width:520px){.cards{grid-template-columns:1fr}.grid{grid-template-columns:1fr}.full{grid-column:auto}.actions{width:100%}.actions button{width:100%}}

/* v1.5 playlist + plan UX */
.hidden{display:none!important}.playlist-top-grid{margin-bottom:14px}.source-panel{margin:12px 0 4px;padding:16px;border:1px solid #2b3748;border-radius:13px;background:#101720}.source-panel textarea{width:100%;min-height:230px;resize:vertical;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:12px;line-height:1.45}.playlist-actions{margin-top:14px}.test-result{margin-top:14px}.section-head.compact{margin-bottom:12px}.section-head a,.notice a,.plan-playlist-box a{color:#cce7ff}.plan-playlist-box{padding:16px;border:1px solid #2b3748;border-radius:14px;background:#0f1620}.playlist-check-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px}.playlist-check{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:10px;padding:12px;border:1px solid #2d394a;border-radius:12px;background:#121b26;cursor:pointer}.playlist-check:hover{border-color:#52647d;background:#162131}.playlist-check input{width:18px;height:18px;margin:0;accent-color:#e9eef4}.playlist-check span{display:flex;flex-direction:column;gap:3px}.playlist-check b{color:#eef2f7}.playlist-check small{font-size:11px;color:#8897aa;letter-spacing:.3px}.check-actions{display:flex;gap:8px;margin-top:12px}.mini{padding:7px 10px;font-size:12px}.playlist-names{max-width:280px;white-space:normal;line-height:1.35;margin-top:4px}
@media(max-width:700px){.playlist-check-grid{grid-template-columns:1fr}.source-panel{padding:13px}}
.saved-test-result{margin-top:6px;font-size:12px;max-width:340px;white-space:normal}.good-text{color:#7ce3a1}.bad-text{color:#ff8b8b}

/* v2.4 premium branding + theme system */
body.theme-midnight{--bg:#0a0f18;--nav:#0c1320;--panel:#131b28;--panel2:#0e1521;--line:#243041;--muted:#96a5b8;--text:#f2f6fb;--primary:#eef4fb;--primaryText:#0b1119}
body.theme-royal{--bg:#0a1020;--nav:#0e1730;--panel:#121d36;--panel2:#0d172c;--line:#28406b;--muted:#9fb4d5;--text:#f4f7fd;--primary:#f3f7ff;--primaryText:#111827}
body.theme-emerald{--bg:#081413;--nav:#0b1a1a;--panel:#102221;--panel2:#0d1a19;--line:#264543;--muted:#a3bfbc;--text:#effbf9;--primary:#eafcf7;--primaryText:#0f1720}
body.theme-sunset{--bg:#16110d;--nav:#1d1611;--panel:#241b14;--panel2:#1a140f;--line:#4f3a29;--muted:#c0ae97;--text:#fff8f0;--primary:#fff4e6;--primaryText:#1c120d}
body.theme-graphite{--bg:#0f1114;--nav:#14181d;--panel:#1b2027;--panel2:#151920;--line:#2f3741;--muted:#a1acba;--text:#f6f8fb;--primary:#f3f5f8;--primaryText:#111418}
body{background:radial-gradient(circle at 85% -10%,rgba(87,127,212,.18) 0,transparent 34%),var(--bg)}
nav{box-shadow:inset -1px 0 0 rgba(255,255,255,.03)}
.nav-brand{display:flex;align-items:center;gap:12px;padding:4px 8px 18px}
.nav-logo{width:46px;height:46px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,#fff1,transparent),linear-gradient(135deg,#f8fafc,#9fb5d1);color:#0c1521;font-weight:900;letter-spacing:.08em;box-shadow:0 10px 28px rgba(0,0,0,.25)}
.nav-brand-copy{display:flex;flex-direction:column;min-width:0}
.nav-brand-copy strong{font-size:22px;color:#fff;line-height:1.05}
.nav-brand-copy small{font-size:11px;color:#8fa2ba;letter-spacing:.12em;text-transform:uppercase}
nav b{display:none}
.page-subtitle{font-size:13px;color:var(--muted);margin-top:-4px}
.top-ticker{position:relative;overflow:hidden;border:1px solid color-mix(in srgb, var(--line) 75%, white 10%);background:linear-gradient(90deg,rgba(255,255,255,.07),rgba(255,255,255,.03));border-radius:14px;padding:10px 0;margin-bottom:18px}
.ticker-inner{display:flex;gap:48px;white-space:nowrap;min-width:max-content;animation:ticker-scroll 26s linear infinite;font-size:13px;color:#dbe6f5;font-weight:700;letter-spacing:.02em}
.ticker-inner span{padding-left:18px;padding-right:18px}
@keyframes ticker-scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}
button,.btn{background:linear-gradient(180deg,#ffffff,#e8edf5);color:#08111a;border-color:#d4dde8;box-shadow:0 8px 22px rgba(0,0,0,.12)}
button:hover,.btn:hover{filter:none;transform:translateY(-1px);box-shadow:0 14px 28px rgba(0,0,0,.18)}
button.primary,.btn.primary{background:linear-gradient(135deg,#ffffff,#dfe9f8);color:#09111a}
button[disabled],.btn[disabled],.btn.disabled{opacity:.82;color:#445262;background:linear-gradient(180deg,#f5f7fb,#dfe4ec)}
.section-head .btn,.page-head .btn{min-height:44px}
input,select,textarea{background:rgba(13,20,29,.86)}
section{box-shadow:0 18px 42px rgba(0,0,0,.18)}
.cards div{box-shadow:inset 0 1px 0 rgba(255,255,255,.03),0 16px 38px rgba(0,0,0,.16)}
.table-wrap table tr:hover td{background:rgba(255,255,255,.015)}
.checkbox-inline{display:flex;align-items:center;gap:10px;font-weight:600}
.checkbox-inline input{width:18px;height:18px;margin:0}
.theme-preview{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:10px}
.theme-chip{padding:13px 14px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.03);font-size:13px}
.theme-chip b{display:block;font-size:14px;margin-bottom:4px;color:#fff}
@media(max-width:850px){.top-ticker{margin-top:10px}.nav-brand{padding:0 10px 0 0}.nav-logo{width:40px;height:40px}.nav-brand-copy strong{font-size:18px}}

/* v2.4.1 premium nav logo */
.nav-brand{position:relative}
.nav-logo-wrap{position:relative;display:grid;place-items:center;width:52px;height:52px;flex:0 0 52px;border-radius:17px;background:linear-gradient(145deg,rgba(255,255,255,.12),rgba(255,255,255,.03));border:1px solid rgba(255,255,255,.10);box-shadow:0 16px 32px rgba(0,0,0,.22),inset 0 1px 0 rgba(255,255,255,.08)}
.nav-logo{width:38px;height:38px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,#ffffff,#9fb5d1);color:#0c1521;font-weight:900;letter-spacing:.14em;box-shadow:0 12px 26px rgba(0,0,0,.22)}
.nav-logo-orbit{position:absolute;inset:5px;border-radius:15px;border:1px solid rgba(255,255,255,.08)}
.brand-kicker{font-size:9px!important;letter-spacing:.22em!important;color:#9db4d0!important;margin-bottom:5px}
.nav-brand-copy strong{font-size:23px;letter-spacing:.12em;text-transform:uppercase;text-shadow:0 8px 22px rgba(0,0,0,.2)}
.nav-brand-copy small{line-height:1.1}
@media(max-width:850px){.nav-logo-wrap{width:44px;height:44px;flex-basis:44px}.nav-logo{width:32px;height:32px}.brand-kicker{display:none}.nav-brand-copy strong{font-size:18px}}

/* v2.4.2 sidebar independent scroll fix */
@media (min-width:851px){
  nav{
    height:100vh;
    height:100dvh;
    overflow-y:auto;
    overflow-x:hidden;
    overscroll-behavior:contain;
    scrollbar-width:thin;
    scrollbar-color:rgba(150,165,184,.45) transparent;
  }
  nav::-webkit-scrollbar{width:7px}
  nav::-webkit-scrollbar-track{background:transparent}
  nav::-webkit-scrollbar-thumb{background:rgba(150,165,184,.32);border-radius:999px}
  nav::-webkit-scrollbar-thumb:hover{background:rgba(150,165,184,.55)}
  .nav-brand{position:sticky;top:-26px;z-index:3;background:linear-gradient(180deg,var(--nav) 72%,rgba(17,24,33,0));padding-top:28px;margin-top:-28px}
}
@media(max-width:850px){
  nav{overflow-x:auto;overflow-y:hidden;height:auto;overscroll-behavior-x:contain}
}