:root{--paper:#f2efe7;--paper2:#e8e2d7;--ink:#222b30;--muted:#6d767a;--line:#c8c3b8;--blue:#193f52;--blue2:#285f75;--copper:#b86b43;--ochre:#c99b3d;--sage:#6b7f72;--white:#fffdf8;--shadow:0 14px 38px rgba(25,39,45,.10);--radius:18px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);font-family:"Segoe UI",Arial,sans-serif;background-color:var(--paper);background-image:linear-gradient(rgba(25,63,82,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(25,63,82,.035) 1px,transparent 1px);background-size:28px 28px}a{color:inherit}button,input,select,textarea{font:inherit}.shell{max-width:1380px;margin:auto;padding:0 24px}
.hero{color:white;background:linear-gradient(120deg,#132e3a,#1b485c 58%,#2b6579);border-bottom:5px solid var(--copper)}.hero-inner{padding:34px 0 26px}.brand{display:flex;align-items:center;gap:18px}.brandmark{width:64px;height:64px;display:grid;place-items:center;border:1px solid rgba(255,255,255,.35);border-radius:12px;font-weight:800;letter-spacing:2px;position:relative}.brandmark:before,.brandmark:after{content:"";position:absolute;background:rgba(255,255,255,.2)}.brandmark:before{width:1px;height:100%;left:50%}.brandmark:after{height:1px;width:100%;top:50%}.brand h1{margin:0;font-size:clamp(30px,4vw,46px);letter-spacing:-1px}.brand p{margin:6px 0 0;color:#d7e2e7}.hero-meta{display:flex;gap:8px;flex-wrap:wrap;margin-top:19px}.hero-meta span,.hero-meta a{padding:8px 11px;border:1px solid rgba(255,255,255,.22);border-radius:999px;font-size:13px;text-decoration:none;color:#f2f7f8}.course-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:24px}.course-tab{border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);color:#fff;padding:13px;border-radius:12px;cursor:pointer;text-align:left;transition:.18s}.course-tab small{display:block;color:#bdd0d8;margin-top:3px}.course-tab.active,.course-tab:hover{background:#fff;color:var(--blue);border-color:#fff}.course-tab.active small,.course-tab:hover small{color:#647a84}
main{padding:26px 0 54px}.control-panel{background:rgba(255,253,248,.94);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;position:sticky;top:8px;z-index:20;backdrop-filter:blur(8px)}.filters{display:grid;grid-template-columns:2fr repeat(5,minmax(135px,1fr));gap:10px}.field{display:flex;flex-direction:column;gap:6px}.field label{font-size:11px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);font-weight:700}.field input,.field select,.field textarea{width:100%;border:1px solid #c8c9c4;background:#fffdfa;color:var(--ink);border-radius:10px;padding:11px 12px;outline:none}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--blue2);box-shadow:0 0 0 3px rgba(40,95,117,.10)}.subnav{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.subnav button,.secondary-btn{border:1px solid #c6cccb;background:#fffdfa;color:#4f5b60;border-radius:999px;padding:8px 12px;cursor:pointer;text-decoration:none;font-size:13px}.subnav button.active{background:var(--blue);color:#fff;border-color:var(--blue)}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin:20px 0}.stat{background:var(--white);border:1px solid var(--line);border-radius:14px;padding:16px;position:relative;overflow:hidden}.stat:after{content:"";position:absolute;right:-18px;bottom:-25px;width:80px;height:80px;border:1px solid rgba(25,63,82,.11);transform:rotate(45deg)}.stat strong{display:block;font-size:28px;color:var(--blue)}.stat span{font-size:13px;color:var(--muted)}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:14px;margin:28px 0 12px}.section-head h2{margin:0;font-size:25px}.section-head p{margin:4px 0 0;color:var(--muted);font-size:14px}.legend{display:flex;gap:8px;flex-wrap:wrap}.badge{font-size:11px;font-weight:700;padding:5px 8px;border-radius:999px}.badge.mandatory{background:#dce8ed;color:#17485c}.badge.elective{background:#efe2d2;color:#87502e}.badge.material{background:#e3ece6;color:#486756}.notice{margin:16px 0;padding:12px 14px;border-left:4px solid var(--ochre);background:#fff9e8;color:#6d5a31;border-radius:8px;font-size:13px}
.semester{margin:16px 0 24px;background:rgba(255,253,249,.78);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.semester-title{padding:14px 16px;background:linear-gradient(90deg,#e5dfd3,#f4f0e8);display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line)}.semester-title h3{margin:0;font-size:18px}.semester-title span{font-size:12px;color:var(--muted)}.subject-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;padding:14px}.subject{background:white;border:1px solid #d9d8d1;border-radius:14px;padding:15px;display:flex;flex-direction:column;min-height:170px;transition:.18s}.subject:hover{transform:translateY(-2px);box-shadow:0 9px 22px rgba(37,48,53,.08);border-color:#b6c0c0}.subject-top{display:flex;justify-content:space-between;gap:8px;align-items:flex-start}.subject h4{margin:0 0 7px;font-size:15.5px;line-height:1.36}.subject-index{width:31px;height:31px;border:1px solid #cfd4d4;border-radius:8px;display:grid;place-items:center;font-size:12px;color:#617177;flex:0 0 auto}.subject .block{font-size:11px;color:#8c654a;line-height:1.35;margin-top:6px}.subject-bottom{margin-top:auto;display:flex;justify-content:space-between;align-items:center;gap:8px;padding-top:14px}.material-count{font-size:12px;color:var(--muted)}.open-btn{border:0;background:var(--blue);color:#fff;border-radius:9px;padding:8px 10px;cursor:pointer;font-size:12px}.open-btn:hover{background:var(--blue2)}.empty{padding:30px;text-align:center;color:var(--muted)}
.drawer{position:fixed;inset:0;z-index:60;background:rgba(13,24,28,.48);display:none;align-items:stretch;justify-content:flex-end}.drawer.open{display:flex}.drawer-panel{width:min(720px,100%);background:var(--paper);height:100%;overflow:auto;box-shadow:-14px 0 40px rgba(0,0,0,.18);padding:24px}.drawer-head{display:flex;justify-content:space-between;gap:16px;align-items:flex-start}.drawer-head h2{margin:0;font-size:25px}.close-btn{border:1px solid #c9c9c4;background:white;border-radius:10px;padding:8px 11px;cursor:pointer}.drawer-meta{display:flex;gap:7px;flex-wrap:wrap;margin:12px 0 18px}.material-group{margin:18px 0}.material-group h3{font-size:14px;text-transform:uppercase;letter-spacing:.8px;color:#56656b;margin:0 0 9px}.material-card{background:white;border:1px solid #d4d4ce;border-left:4px solid var(--copper);border-radius:12px;padding:14px;margin:9px 0}.material-card .top{display:flex;justify-content:space-between;gap:10px}.material-card h4{margin:0;font-size:15px}.material-card p{margin:7px 0;color:var(--muted);font-size:13px;line-height:1.45}.tags{display:flex;gap:5px;flex-wrap:wrap;margin-top:8px}.tag{font-size:10px;border:1px solid #d1d3cf;border-radius:999px;padding:4px 7px;color:#677277}.link-btn{display:inline-flex;text-decoration:none;background:var(--copper);color:#fff;padding:8px 11px;border-radius:8px;font-size:12px;font-weight:700;margin-top:9px}.no-materials{border:1px dashed #bfc3c0;border-radius:14px;padding:24px;text-align:center;color:var(--muted);background:rgba(255,255,255,.5)}
.footer{border-top:1px solid var(--line);padding:25px 0 40px;color:var(--muted);font-size:13px}.footer a{color:var(--blue)}
.editor-shell{max-width:1050px;margin:auto;padding:28px 20px 50px}.editor-card{background:white;border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:var(--shadow)}.editor-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:13px}.editor-grid .full{grid-column:1/-1}textarea{min-height:90px;resize:vertical}.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:16px}.primary{border:0;background:var(--blue);color:white;border-radius:9px;padding:10px 14px;cursor:pointer;font-weight:700}.primary.copper{background:var(--copper)}.codebox{margin-top:18px;background:#1f292e;color:#eaf0f2;border-radius:12px;padding:14px;white-space:pre-wrap;overflow:auto;font-family:Consolas,monospace;font-size:12px}.saved-row{display:flex;justify-content:space-between;gap:12px;padding:11px;border-top:1px solid #e1e1db}.saved-row small{color:var(--muted)}
@media(max-width:1050px){.filters{grid-template-columns:repeat(2,1fr)}.subject-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:720px){.shell{padding:0 14px}.course-tabs{grid-template-columns:repeat(2,1fr)}.control-panel{position:static}.filters{grid-template-columns:1fr}.stats{grid-template-columns:repeat(2,1fr)}.subject-grid{grid-template-columns:1fr}.editor-grid{grid-template-columns:1fr}.editor-grid .full{grid-column:auto}}