:root{color-scheme:dark;--bg:#101816;--panel:#18221f;--line:#314139;--text:#edf1e9;--muted:#a4b3a9;--accent:#d5ed91}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.6 system-ui,sans-serif}button,input,textarea,select{font:inherit}button,a,input,textarea,select{outline-offset:4px}button{cursor:pointer}a{color:var(--accent)}.shell{max-width:1280px;margin:auto;padding:30px 42px}header{display:flex;align-items:center;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);padding-bottom:24px}.brand{font-size:24px;font-weight:850;letter-spacing:-1px}.brand em{font-style:normal;color:var(--accent)}.label{font-size:11px;letter-spacing:2px;text-transform:uppercase;color:var(--accent);font-weight:700}h1{font-size:clamp(30px,5vw,54px);line-height:1.12;letter-spacing:-2px;margin:15px 0}h2{font-size:23px;line-height:1.3;margin:6px 0 16px;letter-spacing:-.6px}h3{margin:0}p{color:var(--muted)}.hero{padding:40px 0 30px;display:flex;align-items:center;justify-content:space-between;gap:25px}.hero p{max-width:610px}.badge{border:1px solid var(--line);border-radius:30px;padding:7px 14px;font-size:12px;color:var(--muted)}.btn{background:var(--accent);color:#162115;border:0;border-radius:8px;padding:11px 17px;font-weight:700}.btn.secondary{background:transparent;color:var(--text);border:1px solid var(--line)}.btn.danger{background:transparent;color:#f0aaa0;border:1px solid #64413c;padding:6px 10px;font-size:12px}.row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.layout{display:grid;grid-template-columns:260px 1fr;gap:25px}.card{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:24px;margin-bottom:22px}.sidebar{align-self:start}.student{width:100%;text-align:left;background:transparent;border:1px solid transparent;border-radius:8px;padding:12px;color:var(--text);margin:3px 0}.student.active{background:#2a392b;border-color:#60774b}.student small{display:block;color:var(--muted)}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-bottom:24px}.stat{border:1px solid var(--line);padding:18px;border-radius:12px}.stat strong{font-size:30px;display:block;color:var(--accent)}.stat span{font-size:12px;color:var(--muted)}label{display:block;font-size:12px;color:var(--muted);margin:10px 0 5px}input,textarea,select{width:100%;background:#101916;color:var(--text);border:1px solid #435348;border-radius:7px;padding:10px 12px}textarea{min-height:100px;resize:vertical}form .btn{margin-top:16px}.formgrid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.full{grid-column:1/-1}.calendar{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:7px;margin-top:18px}.weekday{font-size:10px;text-align:center;color:var(--muted);padding:8px 0}.day{min-height:82px;border:1px solid #2e3b33;background:transparent;border-radius:8px;text-align:left;color:var(--muted);padding:10px}.day.planned{border-color:#6e844b;color:var(--text);background:#263523}.day.selected{box-shadow:0 0 0 2px var(--accent)}.day.done{background:#304638}.day strong{display:block}.day small{display:block;font-size:10px;line-height:1.4;margin-top:7px;overflow-wrap:anywhere}.columns{display:grid;grid-template-columns:1fr 1fr;gap:22px}.entry{border-top:1px solid var(--line);padding:16px 0}.entry p{white-space:pre-wrap;margin:6px 0}.entry .row{justify-content:space-between}.empty{padding:25px 0;color:var(--muted);font-size:13px}.auth{min-height:100vh;display:grid;grid-template-columns:1.15fr 1fr}.authintro{padding:10vw 7vw;background:linear-gradient(135deg,#263725,#101816);display:flex;flex-direction:column;justify-content:center}.authintro h1{font-size:clamp(44px,5vw,76px);max-width:600px}.authintro .brand{margin-bottom:60px}.authform{display:flex;justify-content:center;align-items:center;padding:35px}.authform .card{width:100%;max-width:430px}.authform .btn{width:100%}.error{color:#ffb8aa;font-size:13px;min-height:20px}.progress{height:5px;background:#344437;border-radius:8px;margin-top:12px;overflow:hidden}.progress span{display:block;height:100%;background:var(--accent)}#toast{position:fixed;bottom:24px;right:24px;max-width:350px;background:var(--accent);color:#14210f;padding:12px 20px;border-radius:10px;display:none;z-index:100}details summary{cursor:pointer;font-weight:600}footer{margin-top:24px;color:var(--muted);font-size:12px;border-top:1px solid var(--line);padding-top:22px}.selected-session{margin-top:22px;border-top:1px solid var(--line);padding-top:22px}.selected-session p{white-space:pre-wrap}button:disabled{opacity:.5;cursor:wait}@media(max-width:850px){.shell{padding:22px}.layout,.columns,.auth{grid-template-columns:1fr}.authintro{padding:45px 30px}.authintro .brand{margin-bottom:25px}.authintro h1{font-size:44px}.sidebar .student{width:auto;display:inline-block}.hero{align-items:flex-start}.stats{gap:8px}.stat{padding:12px}.calendar{gap:4px}.day{padding:7px;min-height:72px}.day small{font-size:9px}.card{padding:18px}}@media(max-width:480px){header{align-items:flex-start}.brand{font-size:21px}.hero{display:block}.hero .badge{display:inline-block}.formgrid{grid-template-columns:1fr}.stats strong{font-size:25px}.row .btn{padding:8px 12px}.day small{display:none}.day.planned:after{content:'●';color:var(--accent);font-size:9px}.authintro h1{font-size:37px}}

.between{justify-content:space-between}.check{width:auto}.spaced{margin-bottom:20px}
.brand-logo{display:block;width:160px;height:auto}.authintro .brand-logo{width:240px;max-width:100%}@media(max-width:480px){.brand-logo{width:120px}.authintro .brand-logo{width:180px}}
.topic-fields{padding-bottom:16px}.topic-select{display:block;margin-top:10px}#session-focus{scroll-margin-top:24px}
[hidden]{display:none!important}.session-overlay{position:fixed;inset:0;background:rgba(0,0,0,.75);z-index:50;display:flex;align-items:center;justify-content:center;padding:20px}.session-modal{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:24px;width:min(600px,100%);max-height:90vh;overflow-y:auto;margin:0;box-shadow:0 20px 80px #0008}.modal-close{display:block;margin-left:auto;margin-bottom:18px}body:has(.session-overlay:not([hidden])){overflow:hidden}
.auth-links{display:flex;flex-direction:column;gap:12px;margin-top:22px}.text-button{border:0;background:none;color:var(--accent);padding:0;text-decoration:underline;cursor:pointer;font:inherit;text-align:left}