@import"https://fonts.googleapis.com/css2?family=Fredoka:wght@400;500;600;700&display=swap";:root{--pink:#FA095B;--purple:#A93AF6;--cyan:#02B9F4;--ink:#20143A;--muted:#8A839C;--cream:#FBF7FC;--white:#fff;--line:#ece5f1;--shadow:0 18px 50px rgba(32,20,58,.1);--card-shadow:0 14px 38px rgba(32,20,58,.075);font-family:Fredoka,system-ui,sans-serif;color:var(--ink);background:var(--cream)}*{box-sizing:border-box}body{margin:0;background:var(--cream)}button,input{font:inherit}.loading{min-height:100vh;display:grid;place-items:center;font-size:28px;font-weight:700}.login-page{min-height:100vh;display:grid;place-items:center;position:relative;overflow:hidden;padding:24px;background:linear-gradient(135deg,#2b1748,#8b2cc3 58%,#d20b69)}.login-video{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;object-fit:cover}.login-overlay{position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(180deg,#140a242e,#140a248c),radial-gradient(circle at 75% 15%,rgba(2,185,244,.2),transparent 35%)}.login-card{position:relative;z-index:2;width:min(430px,100%);padding:30px;border-radius:30px;background:#ffffffeb;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);box-shadow:0 30px 90px #0a051959}.brand-mark{display:flex;align-items:center;gap:8px;font-weight:700;font-size:38px;letter-spacing:-1.5px;direction:ltr}.brand-mark i{width:20px;height:20px;border-radius:50%;display:inline-block;background:linear-gradient(135deg,var(--pink),var(--purple));box-shadow:inset -3px -3px 7px #46006438,inset 4px 4px 7px #ffffff80}.brand-mark.small{font-size:27px}.brand-mark.small i{width:14px;height:14px}.eyebrow{font-size:12px;text-transform:uppercase;letter-spacing:.16em;font-weight:600;color:var(--purple);margin:8px 0}.login-card h1{font-size:42px;margin:8px 0 4px}.muted{color:var(--muted);line-height:1.5}.login-card form{display:grid;gap:14px;margin-top:24px}.login-card label{display:grid;gap:7px;font-size:14px;font-weight:600}.login-card input{border:1px solid var(--line);border-radius:15px;padding:13px 14px;background:#fff;outline:none}.login-card input:focus{border-color:var(--purple);box-shadow:0 0 0 4px #a93af61a}.primary-button{border:0;border-radius:15px;padding:13px 18px;color:#fff;font-weight:600;background:linear-gradient(135deg,var(--pink),var(--purple));cursor:pointer}.primary-button:disabled{opacity:.6}.form-error{margin:0;color:#b42318;font-size:13px}.login-card small{display:block;text-align:center;color:var(--muted);margin-top:18px}.workspace{min-height:100vh;padding-bottom:88px;transition:background-color .22s ease}.workspace.view-timeline{background:#e6f8fe}.workspace.view-tree{background:#f6ebfe}.workspace.view-compare{background:#fee6ef}.app-header{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;padding:14px 18px;background:#fffc;-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid rgba(32,20,58,.08)}.app-header p{margin:2px 0 0;color:var(--muted);font-size:13px}.ghost-button{border:1px solid var(--line);background:#fff;border-radius:999px;padding:8px 12px;color:var(--ink)}.context-bar{display:flex;gap:10px;justify-content:space-between;padding:14px 16px 8px;max-width:980px;margin:auto}.segmented{display:flex;padding:3px;background:#ffffff8c;border-radius:14px}.segmented button{border:0;background:transparent;padding:8px 11px;border-radius:11px;color:var(--muted);cursor:pointer}.segmented button.active{background:#fff;color:var(--ink);box-shadow:0 4px 12px #20143a14;font-weight:600}.workspace-content{max-width:980px;margin:0 auto;padding:8px 16px 30px}.screen-section{display:grid;gap:14px}.year-card{display:flex;align-items:center;justify-content:space-between;padding:20px;background:linear-gradient(120deg,#fffffff2,#f8eeffeb);border-radius:24px;border:1px solid rgba(32,20,58,.1);box-shadow:var(--card-shadow)}.year-card h2{margin:2px 0;font-size:28px}.year-card strong{font-size:22px}.month-list{display:grid;gap:12px}.month-card{background:#fffffff0;border:1px solid rgba(32,20,58,.09);border-radius:22px;overflow:hidden;box-shadow:var(--card-shadow)}.month-card summary{list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px;cursor:pointer}.month-card summary::-webkit-details-marker{display:none}.month-card h3{margin:0 0 4px;font-size:22px}.month-card summary p{margin:0;color:var(--muted);font-size:13px}.month-card summary>span{white-space:nowrap;background:#f6f0f9;border-radius:999px;padding:7px 10px;font-size:13px}.month-body{border-top:1px solid var(--line);padding:8px 14px 14px}.lesson-no{width:34px;height:34px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(135deg,#fa095b1f,#a93af61f);color:var(--purple);font-weight:600}.empty-state{padding:30px;text-align:center;color:var(--muted);background:#fff;border:1px dashed var(--line);border-radius:20px;box-shadow:var(--card-shadow)}.lesson-tree{display:grid;gap:0}.schedule-lesson{padding:15px 4px;border-bottom:1px solid #edf0f3}.schedule-lesson:last-child{border-bottom:0}.schedule-lesson-head{display:grid;grid-template-columns:38px 1fr;gap:12px;align-items:center}.schedule-lesson-head h4{margin:0;font-size:16px}.schedule-lesson-head p{margin:3px 0 0;color:var(--muted);font-size:13px}.learned-list{margin:10px 0 0 46px;display:grid;gap:7px}.learned-item{display:grid;grid-template-columns:20px 1fr;gap:7px;align-items:start;padding:8px 10px;border-radius:12px;background:#ccf1fd6b}.learned-item .tree-branch{color:var(--cyan);font-weight:700}.learned-item strong{display:block;font-size:14px}.learned-item small{display:block;color:var(--muted);font-size:12px;margin-top:2px}.tree-list{gap:10px}.tree-node{background:#fffffff0;border:1px solid rgba(32,20,58,.09);border-radius:18px;overflow:hidden;box-shadow:var(--card-shadow)}.tree-node summary{list-style:none;display:flex;justify-content:space-between;align-items:center;padding:15px 16px;cursor:pointer}.tree-node summary::-webkit-details-marker{display:none}.tree-node summary span{font-weight:600}.tree-node summary small{color:var(--muted)}.domain-node>summary{background:#ffffff73}.tree-children{padding:0 10px 10px}.topic-node{margin-top:8px;box-shadow:0 8px 24px #20143a0e}.concept-list{border-top:1px solid var(--line)}.concept-row{width:100%;display:grid;grid-template-columns:1fr auto 18px;align-items:center;gap:10px;padding:12px 14px;border:0;border-bottom:1px solid #f3eef5;background:#fff;text-align:right;color:var(--ink)}.concept-row:last-child{border-bottom:0}.concept-row small{color:var(--muted);white-space:nowrap}.concept-row b{color:var(--purple)}.compare-toolbar{display:flex;justify-content:space-between;align-items:center}.compare-toolbar button{border:1px solid rgba(32,20,58,.1);border-radius:999px;padding:8px 12px;background:#fff}.compare-toolbar button.active{background:var(--ink);color:#fff}.compare-toolbar span{color:#20143a94;font-size:13px}.compare-table-wrap{overflow:hidden;border-radius:20px;border:1px solid rgba(32,20,58,.1);background:#fffffff0;box-shadow:var(--card-shadow)}.compare-table{width:100%;border-collapse:collapse;table-layout:fixed}.compare-table thead th{position:sticky;top:0;background:#fffffffa;z-index:2;font-size:13px;color:var(--muted);text-align:center;padding:12px 10px;border-bottom:1px solid var(--line)}.compare-table thead th:first-child{text-align:right;width:48%}.compare-table tbody th,.compare-table tbody td{padding:13px 10px;border-bottom:1px solid #f2edf5;vertical-align:top}.compare-table tbody tr:last-child th,.compare-table tbody tr:last-child td{border-bottom:0}.compare-table tbody th{text-align:right;font-weight:500}.compare-table tbody th strong{display:block;font-size:14px}.compare-table tbody th small{display:block;color:var(--muted);font-size:11px;margin-top:3px;font-weight:400}.compare-table tbody td{text-align:center;font-weight:600;background:#ffffff6b}.bottom-nav{position:fixed;bottom:0;left:0;right:0;z-index:30;display:grid;grid-template-columns:repeat(3,1fr);padding:8px max(12px,env(safe-area-inset-right)) calc(8px + env(safe-area-inset-bottom));background:#fffffff2;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);border-top:1px solid var(--line);box-shadow:0 -8px 30px #20143a0e}.bottom-nav button{display:grid;justify-items:center;gap:2px;border:0;background:none;color:var(--muted);font-size:12px}.bottom-nav button span{font-size:20px}.bottom-nav button.active{color:var(--purple);font-weight:600}@media(max-width:520px){.learned-list{margin-right:0;margin-left:0;padding-right:46px}.schedule-lesson-head p{line-height:1.4}}@media(min-width:760px){.workspace{padding-bottom:100px}.context-bar{justify-content:flex-start}.screen-section{max-width:760px;margin:auto}.bottom-nav{left:50%;right:auto;transform:translate(-50%);width:460px;bottom:18px;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow)}}