:root{font:16px system-ui,-apple-system,Segoe UI,sans-serif;--bg:#101014;--surface:#1d1c24;--surface2:#282631;--text:#f9f8fc;--muted:#c4bcca;--border:#393442;--brand:#32195a;--accent:#a384cc;color-scheme:dark}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}body[data-theme=light]{--bg:#f8f7fa;--surface:#fff;--surface2:#f1eef5;--text:#19151e;--muted:#625a69;--border:#ddd6e5;--accent:#7451a1;color-scheme:light}button,input,select,textarea{font:inherit}button{cursor:pointer}button,input,select{min-height:44px}button:disabled{opacity:.5;cursor:wait}button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,a:focus-visible{outline:3px solid #a384cc;outline-offset:3px}a{color:var(--accent)}h1,h2,h3{line-height:1.2}h1{font-size:clamp(26px,3vw,38px);margin:8px 0}h2{font-size:20px;margin:0 0 16px}h3{font-size:16px}p{color:var(--muted);line-height:1.6;overflow-wrap:anywhere}label{display:grid;gap:7px;font-size:14px}input,select,textarea{width:100%;background:var(--surface2);border:1px solid var(--border);color:var(--text);border-radius:10px;padding:11px}textarea{min-height:90px;resize:vertical}fieldset{border:1px solid var(--border);border-radius:12px;padding:14px;min-width:0}.form{display:grid;gap:14px}.form h2{margin-bottom:0}.form>.btn{justify-self:start}.btn{border:0;border-radius:11px;background:var(--brand);color:white;padding:11px 16px;font-weight:650;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px}.btn.secondary{background:var(--surface2);color:var(--text);border:1px solid var(--border)}.btn.danger{background:#843d51;color:white}.actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.layout{display:grid;grid-template-columns:246px 1fr;min-height:100vh}.sidebar{background:var(--surface);border-right:1px solid var(--border);padding:24px 18px;position:sticky;top:0;height:100vh;overflow-y:auto}.brand{display:flex;align-items:center;gap:12px;margin-bottom:28px;font-size:14px;font-weight:800}.brand img{width:52px;height:52px;object-fit:contain;border-radius:50%;background:#fff}.brand small{display:block;margin-top:3px;font-weight:400;color:var(--muted)}.nav{display:grid;gap:6px}.nav button{display:flex;align-items:center;gap:12px;border:0;background:transparent;color:var(--text);border-radius:12px;padding:12px;text-align:left}.nav button.active{background:var(--brand);color:white}.icon{width:22px;font-size:20px;text-align:center}.account{margin-top:28px;padding-top:20px;border-top:1px solid var(--border);display:grid;gap:10px}.account small{color:var(--muted);overflow-wrap:anywhere}main{padding:32px;width:100%;max-width:1240px;margin:0 auto;min-width:0}.top{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:26px}.top p{margin:0}.theme{display:flex;gap:4px;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:4px}.theme button{border:0;background:transparent;color:var(--text);border-radius:9px;padding:7px 12px;font-size:13px;min-height:36px}.theme button[aria-pressed=true]{background:var(--brand);color:white}.card{background:var(--surface);border:1px solid var(--border);border-radius:18px;padding:22px;min-width:0}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}.two{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}.list{display:grid;gap:12px}.item{display:flex;justify-content:space-between;align-items:center;gap:18px;border:1px solid var(--border);background:var(--surface);padding:16px;border-radius:14px}.item p{margin:8px 0}.item strong{display:block}.gap{margin-top:24px}.muted,.small{color:var(--muted);font-size:13px}.pill{background:var(--surface2);border-radius:20px;padding:6px 10px;font-size:12px;display:inline-block}.stat{font-size:34px;color:var(--accent);font-weight:800;margin-top:10px}.empty{border:1px dashed var(--border);border-radius:12px;padding:24px;color:var(--muted);line-height:1.6}.note{padding:14px 16px;border-left:3px solid var(--accent);background:var(--surface2);border-radius:8px;color:var(--muted);font-size:14px;line-height:1.5}.hero{display:grid;grid-template-columns:1.15fr .85fr;overflow:hidden;border:1px solid var(--border);border-radius:22px;background:linear-gradient(125deg,#32195a66,var(--surface))}.hero .copy{padding:32px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.hero h2{font-size:clamp(28px,3.5vw,42px);margin-top:18px}.hero img{width:100%;height:350px;object-fit:contain;background:#0d0c10}.section-title{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:18px}.section-title h2{margin:0}.auth{max-width:500px;padding-top:60px}.auth .brand{justify-content:center;font-size:20px}.auth h1{font-size:28px}.auth .card{padding:28px}.auth-intro{text-align:center}.auth .actions .btn{flex:1}.auth .form>.btn{width:100%}#status{position:fixed;top:12px;left:50%;transform:translateX(-50%);z-index:30;max-width:min(650px,calc(100% - 24px));background:var(--surface);color:var(--text);border:1px solid var(--accent);padding:14px 18px;border-radius:12px;box-shadow:0 8px 40px #0004}#status:empty{display:none}#status.error{border-color:#c45f75}progress{width:100%;height:10px;border:0;border-radius:10px;background:var(--surface2);accent-color:#9068bb;overflow:hidden}progress::-webkit-progress-bar{background:var(--surface2)}progress::-webkit-progress-value{background:linear-gradient(90deg,#32195a,#9068bb)}.progress-meta{display:flex;justify-content:space-between;gap:12px;margin:16px 0 10px;font-size:14px}.exercise-list{padding-left:22px;line-height:1.8}.prewrap{white-space:pre-wrap}.checks{display:grid;grid-template-columns:1fr 1fr;gap:10px}.check{display:flex;align-items:center;gap:8px}.check input{width:18px;min-height:18px;accent-color:var(--brand)}summary{cursor:pointer;min-height:44px;display:flex;align-items:center;font-weight:650}details[open]>summary{margin-bottom:16px}.doc-line{display:grid;grid-template-columns:minmax(140px,1fr) 80px 100px auto;gap:8px;align-items:end}.doc-line label{font-size:12px}.document-lines{display:grid;gap:12px}.message{padding:16px;border-radius:12px;background:var(--surface2);border:1px solid var(--border)}.message.mine{border-left:3px solid var(--accent)}.message p{margin-bottom:0}.table-wrap{overflow:auto}table{border-collapse:collapse;width:100%;font-size:14px}th,td{padding:10px;text-align:left;border-bottom:1px solid var(--border)}th:last-child,td:last-child{text-align:right}.mobilebar,.menu-toggle{display:none}dialog{width:min(440px,calc(100% - 32px));padding:26px;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:18px;box-shadow:0 20px 80px #0006}dialog::backdrop{background:#07050cb3}[hidden]{display:none!important}.gallery{width:100%;height:240px;object-fit:contain;background:#0d0c10;border-radius:12px}.loading{opacity:.65;pointer-events:none}
@media(max-width:1000px){.grid{grid-template-columns:1fr 1fr}.layout{grid-template-columns:220px 1fr}main{padding:24px}.two{grid-template-columns:1fr}.hero .copy{padding:24px}}
@media(max-width:650px){.layout{display:block}.sidebar{position:static;height:auto;display:grid;grid-template-columns:1fr auto;gap:12px;padding:14px 16px;border-right:0;border-bottom:1px solid var(--border)}.brand{margin:0}.brand img{width:42px;height:42px}.menu-toggle{display:block;background:var(--surface2);color:var(--text);border:1px solid var(--border);border-radius:10px;padding:8px 14px}.sidebar .nav,.sidebar .account{display:none;grid-column:1/-1}.sidebar.open .nav{display:grid;grid-template-columns:1fr 1fr}.sidebar.open .account{display:grid;margin-top:0}.nav button{font-size:13px;padding:10px}main{padding:22px 16px 100px}.top{display:block}.top h1{margin:8px 0 16px}.theme{display:inline-flex}.hero{grid-template-columns:1fr}.hero img{height:260px}.grid{grid-template-columns:1fr}.summary-grid{grid-template-columns:1fr 1fr}.summary-grid .card:last-child{grid-column:1/-1}.card{padding:18px}.item{align-items:flex-start;flex-direction:column}.actions .btn{flex:1}.hero .actions{width:100%}.mobilebar{display:grid;grid-template-columns:repeat(4,1fr);position:fixed;bottom:0;left:0;right:0;z-index:10;background:var(--surface);border-top:1px solid var(--border);padding:7px 5px max(7px,env(safe-area-inset-bottom))}.mobilebar button{display:grid;place-items:center;gap:4px;border:0;background:transparent;color:var(--muted);font-size:10px;padding:6px 2px}.mobilebar button.active{background:var(--surface2);color:var(--text);border-radius:10px}.auth{padding-top:28px}.auth .brand{margin-bottom:24px}.doc-line{grid-template-columns:1fr 1fr}.doc-line label:first-child{grid-column:1/-1}.checks{grid-template-columns:1fr}.section-title{gap:12px}button{max-width:100%}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important}}
[hidden]{display:none!important}

/* Expanded mobile navigation occupies its own screen. */
@media(max-width:650px){
 .layout.menu-open main,.layout.menu-open+.mobilebar{display:none}
 .sidebar.open{min-height:100dvh;align-content:start;padding-bottom:max(24px,env(safe-area-inset-bottom))}
 .nav button{min-width:0;overflow-wrap:anywhere}
 main{padding-bottom:calc(112px + env(safe-area-inset-bottom))}
 .mobilebar button{min-width:0;line-height:1.3;overflow-wrap:anywhere}
 .top>.actions{flex-wrap:nowrap}
 .top>.actions>.btn{flex:0 0 auto;min-width:64px}
 .top>.actions>.theme{margin-left:auto}
 input,select,textarea{font-size:16px}
}

.password-control{display:block;position:relative;min-width:0;width:100%}
.password-control input{padding-right:54px}
.password-toggle{position:absolute;right:2px;top:2px;bottom:2px;width:46px;min-height:40px;display:flex;align-items:center;justify-content:center;border:0;border-radius:8px;background:transparent;color:var(--muted)}
.password-toggle:hover{color:var(--text)}

/* Quiet monochrome header controls, with full-size touch targets. */
.ui-icon{display:block;flex:none}
.icon{display:inline-flex;align-items:center;justify-content:center}
.icon-button{position:relative;display:inline-flex;align-items:center;justify-content:center;width:44px;min-height:44px;padding:10px;border:0;border-radius:8px;background:transparent;color:var(--text)}
.notification-button #notificationCount{position:absolute;right:-2px;top:0;min-width:18px;padding:1px 4px;border-radius:10px;background:var(--text);color:var(--bg);font-size:11px;line-height:16px}
.theme{background:transparent;border:0;padding:0;gap:8px}
.theme button{display:inline-flex;align-items:center;gap:7px;min-height:44px;border-radius:0;padding:9px 5px;color:var(--muted)}
.theme button[aria-pressed=true]{background:transparent;color:var(--text);box-shadow:inset 0 -2px currentColor}
@media(max-width:650px){.top>.actions>.notification-button{flex:0 0 44px;min-width:44px}}

/* Floating mobile navigation, clear of the device's home gesture area. */
@media(max-width:650px){
 .mobilebar{left:16px;right:16px;bottom:calc(12px + env(safe-area-inset-bottom));width:auto;max-width:560px;margin-inline:auto;min-height:68px;border:1px solid var(--border);border-radius:24px;padding:6px;box-shadow:0 6px 24px #0003}
 .mobilebar button{min-height:54px;border-radius:18px;padding:5px 2px}
 .mobilebar button.active{border-radius:18px}
}

.chat-shell{border:1px solid var(--border);border-radius:20px;background:var(--surface);overflow:hidden}
.chat-header{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px;border-bottom:1px solid var(--border)}
.chat-header h2{margin-bottom:8px}.chat-header p{margin:0}.chat-header>div{min-width:0}
.chat-messages{display:flex;flex-direction:column;gap:10px;height:48dvh;min-height:240px;overflow-y:auto;padding:16px;overscroll-behavior:contain;background:var(--bg)}
.chat-bubble{align-self:flex-start;max-width:88%;padding:12px;border:1px solid var(--border);border-radius:16px 16px 16px 4px;background:var(--surface)}
.chat-bubble.mine{align-self:flex-end;background:var(--surface2);border-radius:16px 16px 4px 16px}
.chat-bubble p{margin:0 0 8px;color:var(--text)}.chat-bubble small{display:block;color:var(--muted);font-size:11px;text-align:right;margin-top:8px}.chat-bubble .btn{display:flex;margin-top:6px;overflow-wrap:anywhere;max-width:100%}
.chat-shell>.form{padding:16px;border-top:1px solid var(--border)}.chat-shell>.form textarea{min-height:66px}
.call-dialog{width:min(1100px,calc(100% - 24px));height:calc(100dvh - 24px);max-width:none;max-height:none;padding:12px;overflow:hidden}.call-dialog iframe{display:block;border:0;width:100%;height:calc(100% - 56px);margin-top:8px}
@media(max-width:650px){.chat-header{align-items:flex-start;gap:8px;padding:12px}.chat-header>.btn{padding:10px;font-size:13px}.chat-messages{padding:12px;height:45dvh}.chat-shell>.form{padding:12px}}