.app-main{max-width:1050px;margin:0 auto;padding:40px 34px 70px}
.view{display:none}
.view.active{display:block;animation:fade .22s ease}
@keyframes fade{from{opacity:0;transform:translateY(4px)}to{opacity:1;transform:none}}
.view h1{font:600 36px/1.08 var(--display);letter-spacing:-1px;margin:0}
.lead{color:var(--muted);font-size:16px;line-height:1.7;max-width:66ch;margin:10px 0 0}
.empty{padding:36px;border:1px dashed var(--line);border-radius:var(--radius);text-align:center;color:var(--muted)}
.play-layout{display:grid;grid-template-columns:220px minmax(0,1fr);gap:14px;margin-top:26px}
.play-langs{padding:12px;display:grid;gap:5px;align-content:start}
.play-langs button{border:0;background:transparent;color:var(--muted);text-align:left;padding:9px 10px;border-radius:8px;cursor:pointer}
.play-langs button.active{background:var(--accent-soft);color:var(--accent)}
.editor-wrap{min-width:0}
.editor-toolbar{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 12px;border-bottom:1px solid var(--line)}
.editor-toolbar span{font:12px var(--mono);color:var(--muted)}
.editor-area{display:grid;grid-template-columns:1fr;min-height:340px}
.editor-area textarea{border:0;border-radius:0;background:var(--code-bg);font:13px/1.65 var(--mono);padding:18px 20px;min-height:320px}
.editor-output{border-top:1px solid var(--line);background:var(--console);padding:15px 18px;min-height:80px;color:#7fffe4;font:12.5px/1.6 var(--mono);white-space:pre-wrap}
.editor-output.muted-out{color:var(--muted)}
.preview-frame{width:100%;min-height:230px;border:0;background:#fff;display:none}
.play-note{margin-top:12px;color:var(--muted);font-size:12.5px}
.two-col{display:grid;grid-template-columns:1.35fr .65fr;gap:16px;margin-top:26px}
.panel{padding:22px}
.panel h2{font:600 19px var(--display);margin:0 0 14px}
.row{padding:13px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:18px;align-items:center}
.row:last-child{border-bottom:0}
.row .d{font-size:12.5px;color:var(--muted);margin-top:3px}
.toggle{width:44px;height:25px;border-radius:999px;background:var(--line);position:relative;cursor:pointer;flex:0 0 auto;border:0}
.toggle:after{content:"";position:absolute;width:19px;height:19px;border-radius:50%;background:#fff;left:3px;top:3px;transition:left .18s}
.toggle.on{background:var(--accent)}
.toggle.on:after{left:22px}
.profile-block{text-align:center}
.avatar{width:72px;height:72px;border-radius:18px;background:var(--accent);color:var(--onaccent);display:grid;place-items:center;margin:0 auto 13px;font:700 25px var(--mono)}
.build-preview{margin-top:26px;padding:30px;border-style:dashed}
.build-preview h2{font:600 28px var(--display);margin:0}
.build-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:22px}
.build-step{padding:14px;background:#11141b;border:1px solid var(--line);border-radius:10px}
.build-step b{font:11px var(--mono);color:var(--accent)}
.build-step p{margin:8px 0 0;font-size:12px;color:var(--muted)}
.compact-mode .app-main{padding-top:26px}
.plan-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:26px}
.plan-card{padding:22px}
.plan-card h2{font:600 21px var(--display);margin:13px 0 7px}
.plan-card p{color:var(--muted);font-size:13.5px;line-height:1.6;margin:0}
.plan-card ul{padding-left:18px;color:var(--muted);font-size:13px;line-height:1.8}
.plan-card .status{margin-top:14px;font:700 10px var(--mono);color:var(--accent);text-transform:uppercase;letter-spacing:.7px}
@media(max-width:700px){.plan-grid{grid-template-columns:1fr}}

/* ===== App shell: top bar with four destinations, avatar menu, phone tab bar ===== */
[hidden]{display:none!important}
body{overflow-x:hidden}
.topbar{position:sticky;top:0;z-index:30;height:64px;display:flex;align-items:center;gap:22px;padding:0 28px;background:rgba(15,17,23,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.topbar .brand{font-size:17px;flex:none}
.topnav{display:flex;gap:4px}
.topnav a{display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border-radius:10px;color:var(--muted);font-weight:650;font-size:14.5px}
.topnav a:hover{background:var(--hover);color:var(--ink)}
.topnav a[aria-current="page"]{background:var(--accent-soft);color:var(--accent)}
.topnav svg,.tabbar svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
.soon{font:700 9px/1 var(--mono);letter-spacing:.6px;text-transform:uppercase;color:var(--warning);border:1px solid rgba(255,212,121,.4);border-radius:999px;padding:3px 6px}
.topbar-end{margin-left:auto;display:flex;align-items:center;gap:12px}
.streak{display:inline-flex;align-items:center;gap:6px;font:700 13px var(--mono);color:var(--warning);border:1px solid rgba(255,212,121,.35);background:rgba(255,212,121,.08);border-radius:999px;padding:5px 11px}
.menu{position:relative}
.avatar-btn{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:linear-gradient(135deg,#8b7cf6,var(--accent));color:#0b0e14;font:700 15px var(--display);cursor:pointer}
.avatar-btn:focus-visible,.topnav a:focus-visible,.tabbar a:focus-visible,.menu-list a:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.menu-list{position:absolute;right:0;top:calc(100% + 10px);width:240px;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow);padding:6px;display:grid;z-index:40}
.menu-list[hidden]{display:none}
.menu-head{padding:10px 12px 12px;border-bottom:1px solid var(--line);margin-bottom:6px;display:grid;gap:2px}
.menu-head strong{font-size:14px}.menu-head span{font-size:12px;color:var(--muted)}
.menu-list a{padding:10px 12px;border-radius:9px;font-size:14px;color:var(--ink)}
.menu-list a:hover,.menu-list a:focus{background:var(--hover);outline:none}
.menu-list a[aria-current="page"]{color:var(--accent)}
.app-main{max-width:1180px;margin:0 auto;padding:40px 34px 70px}
.app-main:focus{outline:none}
.home-start{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
.tabbar{display:none}
@media(max-width:940px){.topbar{padding:0 18px;gap:14px}.topnav a{padding:9px 10px}.topnav a span:not(.soon){display:none}.topnav a .soon{display:none}.app-main{padding:32px 22px 60px}.play-layout,.two-col{grid-template-columns:1fr}.play-langs{grid-template-columns:repeat(3,1fr)}.build-steps{grid-template-columns:1fr 1fr}}
@media(max-width:760px){
  .topnav{display:none}
  .topbar{height:58px}
  .tabbar{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;left:0;right:0;bottom:0;z-index:30;background:rgba(15,17,23,.97);backdrop-filter:blur(12px);border-top:1px solid var(--line);padding:6px 6px calc(6px + env(safe-area-inset-bottom))}
  .tabbar a{display:flex;flex-direction:column;align-items:center;gap:3px;padding:7px 0;border-radius:10px;color:var(--muted);font-size:11.5px;font-weight:650}
  .tabbar svg{width:21px;height:21px}
  .tabbar a[aria-current="page"]{color:var(--accent)}
  body{padding-bottom:calc(72px + env(safe-area-inset-bottom))}
  .app-main{padding:24px 16px 40px}
  .view h1{font-size:30px}
}
@media(max-width:580px){.build-steps{grid-template-columns:1fr}.play-langs{display:flex;gap:6px;padding:8px;overflow-x:auto;scrollbar-width:none;-webkit-mask-image:linear-gradient(90deg,#000 88%,transparent);mask-image:linear-gradient(90deg,#000 88%,transparent)}.play-langs::-webkit-scrollbar{display:none}.play-langs button{flex:none;padding:8px 14px;border:1px solid var(--line);border-radius:999px;white-space:nowrap}.play-langs button.active{border-color:rgba(94,234,212,.45)}.two-col{grid-template-columns:1fr}.view h1{font-size:31px}}

/* profile + settings: device-local progress */
.btn-danger{background:#3a1c26;border-color:#6b2a3b;color:#ff9db3}
.btn-danger:hover{background:#4a2230}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.clear-wrap{display:flex;align-items:center;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.clear-wrap .d{margin:0;color:var(--ink)}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin-bottom:18px}
.stat{background:var(--surface-2);border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.stat b{display:block;font:600 26px/1.1 var(--display);color:var(--accent)}
.stat span{font-size:12.5px;color:var(--muted)}
.track-progress{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.track-progress a{display:grid;grid-template-columns:120px 1fr auto;gap:14px;align-items:center;padding:9px 10px;border-radius:10px}
.track-progress a:hover{background:var(--hover)}
.tp-name{font-weight:600}
.tp-bar{height:6px;border-radius:6px;background:#262c38;overflow:hidden}
.tp-bar i{display:block;height:100%;background:var(--accent);border-radius:6px;min-width:4px}
.tp-n{font:600 12px var(--mono);color:var(--muted)}
#profileActivity > .d{font-size:12.5px;color:var(--muted);margin:14px 0 0}
@media(max-width:580px){.stat-grid{grid-template-columns:1fr 1fr}.track-progress a{grid-template-columns:90px 1fr auto}.row{flex-wrap:wrap}.clear-wrap{justify-content:flex-start}}
/* iOS zooms into inputs under 16px; keep the Practice editor at 16px on phones. */
@media(max-width:760px){.editor-area textarea{font-size:16px}}