:root{
  --bg:#ffffff;--soft:#f5f4fe;--card:#ffffff;--card2:#f2f0fc;--line:#eae8f5;
  --txt:#1a1533;--mut:#6f6a86;--accent:#6d3bef;--accent2:#f5a623;
  --grad:linear-gradient(120deg,#6d3bef,#a06bff);--ok:#22b573;
}
*{margin:0;padding:0;box-sizing:border-box}
body{background:linear-gradient(160deg,#efeafe,#f7f5ff 60%);color:var(--txt);font-family:'Inter',sans-serif;-webkit-font-smoothing:antialiased;min-height:100vh;display:grid;place-items:center;padding:24px}
h1,h2,h3,.brand{font-family:'Sora',sans-serif}
.phone{width:100%;max-width:410px;height:min(840px,94vh);background:var(--bg);border:1px solid var(--line);border-radius:38px;box-shadow:0 40px 100px rgba(26,21,51,.25);overflow:hidden;position:relative;display:flex;flex-direction:column}
.notch{height:26px;display:flex;justify-content:center;align-items:flex-start;padding-top:8px}
.notch::after{content:"";width:110px;height:7px;border-radius:10px;background:#e6e2f5}
.screen{flex:1;overflow-y:auto;padding:8px 22px 90px}
.screen::-webkit-scrollbar{display:none}
.btn{width:100%;font-family:'Sora';font-weight:600;font-size:15px;padding:15px;border-radius:14px;border:none;cursor:pointer;transition:.2s;background:var(--grad);color:#fff}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(109,59,239,.3)}
.btn.o{background:#fff;color:var(--txt);border:1px solid var(--line)}
.btn.o:hover{border-color:var(--accent);color:var(--accent);box-shadow:none}
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;color:var(--mut);margin-bottom:7px;font-weight:500}
.field input{width:100%;background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:13px 14px;color:var(--txt);font-family:inherit;font-size:14.5px;outline:none;transition:.2s}
.field input:focus{border-color:var(--accent);background:#fff}
.auth-logo{width:60px;height:60px;border-radius:16px;background:var(--grad);display:grid;place-items:center;color:#fff;margin:14px auto 18px}
.auth-logo svg{width:30px;height:30px}
.auth h1{text-align:center;font-size:23px;font-weight:700;letter-spacing:-.5px}
.auth .sub{text-align:center;color:var(--mut);font-size:14px;margin:8px 0 24px}
.tabs{display:flex;background:var(--soft);border-radius:12px;padding:4px;margin-bottom:22px}
.tabs button{flex:1;padding:10px;border:none;background:none;color:var(--mut);font-family:'Sora';font-weight:600;font-size:14px;border-radius:9px;cursor:pointer;transition:.2s}
.tabs button.on{background:var(--grad);color:#fff}
.err{color:#e5484d;font-size:12.5px;margin:-6px 0 12px;display:none}
.mut-c{text-align:center;color:var(--mut);font-size:12.5px;margin-top:16px}
/* dashboard */
.topbar{display:flex;justify-content:space-between;align-items:center;padding:14px 0 18px}
.topbar .hi{font-size:13px;color:var(--mut)}
.topbar .hi b{display:block;font-family:'Sora';font-size:20px;font-weight:700;margin-top:2px}
.topbar .av{width:44px;height:44px;border-radius:50%;background:var(--grad);display:grid;place-items:center;color:#fff;font-family:'Sora';font-weight:700;font-size:17px}
.streak{background:var(--grad);border-radius:20px;padding:20px;color:#fff;position:relative;overflow:hidden;margin-bottom:20px;display:flex;align-items:center;gap:18px}
.streak::after{content:"";position:absolute;right:-30px;top:-30px;width:120px;height:120px;background:radial-gradient(circle,rgba(255,255,255,.2),transparent 70%)}
.streak .big{font-family:'Sora';font-size:40px;font-weight:700}
.streak .l{font-size:13px;opacity:.9}
.streak .l b{display:block;font-family:'Sora';font-size:16px;font-weight:600}
.sec-t{font-family:'Sora';font-weight:700;font-size:16px;margin:6px 0 12px;display:flex;justify-content:space-between;align-items:center}
.sec-t span{font-size:12.5px;color:var(--accent);font-weight:600;cursor:pointer}
/* course row */
.cr{display:flex;gap:14px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:16px;padding:14px;margin-bottom:12px;cursor:pointer;transition:.2s}
.cr:hover{border-color:var(--accent)}
.cr .th{width:54px;height:54px;border-radius:12px;background:var(--grad);display:grid;place-items:center;color:#fff;flex:none}
.cr .th.o2{background:linear-gradient(120deg,#f5a623,#ff7a59)}
.cr .th.o3{background:linear-gradient(120deg,#22b8cf,#4dd4ac)}
.cr .th svg{width:24px;height:24px}
.cr .info{flex:1;min-width:0}
.cr b{font-size:14.5px;font-family:'Sora'}
.cr .m{color:var(--mut);font-size:12px;margin:4px 0 6px}
.cr .prog{height:6px;background:var(--soft);border-radius:6px;overflow:hidden}
.cr .prog i{display:block;height:100%;background:var(--grad);border-radius:6px;transition:width 1s ease}
/* rings row */
.stats3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:20px}
.st{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:16px;text-align:center}
.st b{font-family:'Sora';font-size:24px;font-weight:700;display:block}
.st span{color:var(--mut);font-size:12px}
/* browse grid */
.bg{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.bc{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;cursor:pointer;transition:.2s}
.bc:hover{transform:translateY(-3px);border-color:var(--accent)}
.bc .top{height:80px;background:var(--grad);display:grid;place-items:center;color:#fff}
.bc .top.o2{background:linear-gradient(120deg,#f5a623,#ff7a59)}.bc .top.o3{background:linear-gradient(120deg,#22b8cf,#4dd4ac)}.bc .top.o4{background:linear-gradient(120deg,#e5484d,#ff7a9c)}
.bc .top svg{width:30px;height:30px;opacity:.9}
.bc .b{padding:12px}
.bc b{font-size:13px;font-family:'Sora'}
.bc .m{color:var(--mut);font-size:11.5px;margin-top:3px}
.bc .p{color:var(--accent);font-family:'Sora';font-weight:700;font-size:14px;margin-top:6px}
/* profile */
.pcard{text-align:center;padding:20px 0}
.pcard .av{width:78px;height:78px;border-radius:50%;background:var(--grad);display:grid;place-items:center;color:#fff;font-family:'Sora';font-weight:700;font-size:30px;margin:0 auto 14px}
.pcard h2{font-size:20px;font-weight:700}
.pcard .em{color:var(--mut);font-size:13.5px;margin-top:4px}
.plist{margin-top:10px}
.pl{display:flex;justify-content:space-between;padding:14px 0;border-bottom:1px solid var(--line);font-size:14px}
.pl span{color:var(--mut)}.pl b{font-weight:600}
.tabbar{position:absolute;bottom:0;left:0;right:0;height:74px;background:rgba(255,255,255,.92);backdrop-filter:blur(14px);border-top:1px solid var(--line);display:flex;padding:0 10px}
.tabbar button{flex:1;background:none;border:none;color:var(--mut);cursor:pointer;display:flex;flex-direction:column;align-items:center;gap:4px;font-size:10.5px;font-family:'Sora';font-weight:500;padding-top:12px;transition:.2s}
.tabbar button svg{width:22px;height:22px}
.tabbar button.on{color:var(--accent)}
.hidden{display:none!important}
.toast{position:absolute;bottom:88px;left:22px;right:22px;background:var(--txt);color:#fff;padding:13px;border-radius:13px;font-family:'Sora';font-weight:600;font-size:13.5px;text-align:center;transform:translateY(140px);transition:.4s cubic-bezier(.5,0,.2,1);z-index:20}
.toast.show{transform:translateY(0)}
.fade{animation:fade .4s ease}
@keyframes fade{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}