:root{--ink:#172554;--muted:#64748b;--line:#dbe4f0;--surface:#fff;--soft:#f4f7fb;--brand:#2563eb;--shadow:0 16px 40px rgba(30,64,175,.10)}*{box-sizing:border-box}html{background:#eef3f9}body{margin:0;color:#172033;background:linear-gradient(180deg,#f8fbff 0,#eef3f9 100%);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;min-height:100vh}.topbar{position:sticky;top:0;z-index:10;height:72px;display:flex;align-items:center;gap:12px;padding:0 max(20px,calc((100vw - 1160px)/2));background:rgba(255,255,255,.91);border-bottom:1px solid rgba(219,228,240,.9);backdrop-filter:blur(16px)}.brand{display:flex;align-items:center;gap:11px;min-width:0;margin-right:auto}.brand-mark{width:40px;height:40px;border-radius:13px;display:grid;place-items:center;background:linear-gradient(145deg,#1d4ed8,#172554);color:#fff;font-weight:900}.brand strong,.brand small{display:block}.brand strong{font-size:15px}.brand small{font-size:12px;color:var(--muted);margin-top:2px}.icon-button,.text-button,.primary,.secondary{border:0;font:inherit;cursor:pointer}.icon-button{width:40px;height:40px;border-radius:12px;background:#eef3f9;font-size:22px}.text-button{background:transparent;color:#1d4ed8;font-weight:750}.view{max-width:1160px;margin:0 auto;padding:30px 20px 70px}.hero{position:relative;overflow:hidden;padding:42px;border-radius:28px;color:white;background:radial-gradient(circle at 85% 15%,rgba(96,165,250,.6),transparent 30%),linear-gradient(135deg,#172554,#1d4ed8);box-shadow:var(--shadow)}.hero:after{content:"";position:absolute;width:260px;height:260px;border:1px solid rgba(255,255,255,.15);border-radius:50%;right:-70px;bottom:-150px}.eyebrow{margin:0 0 8px;font-size:11px;letter-spacing:.15em;font-weight:900}.hero h1{font-size:clamp(28px,5vw,48px);line-height:1.03;max-width:620px;margin:0 0 12px}.hero p:not(.eyebrow){max-width:650px;color:#dbeafe;font-size:17px;line-height:1.55}.primary,.secondary{padding:12px 17px;border-radius:12px;font-weight:800}.primary{background:#2563eb;color:#fff;box-shadow:0 8px 18px rgba(37,99,235,.22)}.hero .primary{background:#fff;color:#1d4ed8;margin-top:6px}.secondary{background:#edf2f7;color:#334155}.toolbar{display:flex;gap:12px;margin:28px 0 16px}.search{flex:1;display:flex;align-items:center;gap:8px;padding:0 14px;background:white;border:1px solid var(--line);border-radius:13px}.search input,.toolbar select{width:100%;height:46px;border:0;background:transparent;font:inherit;outline:0}.toolbar select{width:auto;min-width:185px;padding:0 12px;border:1px solid var(--line);border-radius:13px;background:white}.stats{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px;color:var(--muted);font-size:13px}.stat-pill{padding:7px 10px;background:#e8eef7;border-radius:999px}.subject-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px}.subject-card{position:relative;min-height:225px;display:flex;flex-direction:column;padding:20px;border:1px solid var(--line);border-top:6px solid var(--subject);border-radius:19px;background:white;box-shadow:0 5px 20px rgba(15,23,42,.04);cursor:pointer;transition:.2s ease}.subject-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}.subject-card-top{display:flex;justify-content:space-between;align-items:start}.subject-symbol{width:47px;height:47px;display:grid;place-items:center;border-radius:14px;background:color-mix(in srgb,var(--subject) 13%,white);font-size:23px}.subject-code{font-size:11px;font-weight:900;letter-spacing:.08em;color:var(--subject)}.subject-card h2{font-size:18px;line-height:1.25;margin:16px 0 5px}.subject-card .semester{font-size:13px;color:var(--muted)}.progress-track{height:7px;border-radius:99px;background:#e7edf5;overflow:hidden;margin-top:auto}.progress-track span{display:block;height:100%;background:var(--subject)}.card-foot{display:flex;justify-content:space-between;margin-top:9px;font-size:12px;color:var(--muted)}.empty-state{text-align:center;padding:60px 20px;background:white;border:1px dashed #bac8db;border-radius:20px}.empty-icon{font-size:40px;color:#2563eb}.subject-banner{padding:28px;border-radius:23px;color:white;background:linear-gradient(125deg,var(--subject),color-mix(in srgb,var(--subject) 62%,#0f172a));box-shadow:var(--shadow)}.banner-top{display:flex;justify-content:space-between;gap:18px}.banner-title{display:flex;align-items:center;gap:15px}.banner-title .subject-symbol{background:rgba(255,255,255,.17)}.banner-title h1{margin:0;font-size:clamp(25px,4vw,38px)}.banner-title p{margin:5px 0 0;color:rgba(255,255,255,.8)}.banner-stats{display:flex;gap:18px;margin-top:25px}.banner-stat strong,.banner-stat span{display:block}.banner-stat strong{font-size:21px}.banner-stat span{font-size:11px;color:rgba(255,255,255,.75)}.tabs{display:flex;gap:7px;margin:22px 0 14px;padding:5px;border:1px solid var(--line);background:white;border-radius:14px;overflow-x:auto}.tab{flex:1;min-width:90px;padding:10px;border:0;border-radius:10px;background:transparent;color:var(--muted);font:inherit;font-weight:800;cursor:pointer}.tab.active{background:#e9f0ff;color:#1d4ed8}.panel-head{display:flex;align-items:center;justify-content:space-between;margin:22px 0 12px}.panel-head h2{margin:0}.segment-list,.note-list{display:grid;gap:11px}.segment,.note-card,.shadow-card{padding:17px;border:1px solid var(--line);border-radius:15px;background:white}.segment{display:grid;grid-template-columns:1fr auto;gap:12px;align-items:center}.segment h3,.note-card h3{margin:0 0 5px;font-size:16px}.segment p,.note-card p{margin:0;color:var(--muted);font-size:13px;line-height:1.5}.status-select{padding:8px;border:1px solid var(--line);border-radius:9px;background:white}.note-meta{display:flex;gap:8px;margin-bottom:9px;color:var(--muted);font-size:11px}.note-photo{width:100%;max-height:310px;object-fit:contain;margin-top:12px;border-radius:11px;background:#eff3f8}.shadow-card{padding:24px}.shadow-text{font-size:clamp(20px,4vw,30px);line-height:1.45;color:var(--ink);min-height:110px}.shadow-controls{display:flex;flex-wrap:wrap;gap:9px}.shadow-controls button{padding:10px 13px;border:1px solid var(--line);border-radius:11px;background:white;font:inherit;font-weight:700;cursor:pointer}.shadow-controls .speak{background:#172554;color:white}.shadow-options{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:16px 0}.shadow-options label{font-size:12px;color:var(--muted)}.shadow-options select,.shadow-options input{width:100%;margin-top:5px}.recall-hidden{filter:blur(9px);user-select:none}.empty-panel{padding:35px;text-align:center;border:1px dashed #b9c5d5;border-radius:15px;background:#f9fbfd;color:var(--muted)}dialog{width:min(580px,calc(100% - 24px));border:0;border-radius:20px;padding:0;box-shadow:0 30px 90px rgba(15,23,42,.28)}dialog::backdrop{background:rgba(15,23,42,.55);backdrop-filter:blur(3px)}dialog form{padding:25px}.dialog-heading{display:flex;justify-content:space-between;align-items:start}.dialog-heading h2{margin:0 0 20px}form label,fieldset{display:block;margin:14px 0;color:#334155;font-size:13px;font-weight:750}form input,form textarea{width:100%;margin-top:6px;padding:12px;border:1px solid #cad5e3;border-radius:10px;font:inherit;outline:0}form input:focus,form textarea:focus{border-color:#2563eb;box-shadow:0 0 0 3px #dbeafe}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}fieldset{border:0;padding:0}.colour-choices,.icon-choices{display:flex;gap:9px;flex-wrap:wrap;margin-top:8px}.colour-choice,.icon-choice{width:36px;height:36px;border:2px solid transparent;border-radius:10px;display:grid;place-items:center;cursor:pointer}.colour-choice.selected,.icon-choice.selected{outline:3px solid #bfdbfe;border-color:#fff}.icon-choice{border-color:#d8e0eb;background:#f5f7fa;font-size:18px}.photo-input{padding:14px;border:1px dashed #93a4ba;border-radius:12px;text-align:center;cursor:pointer}.photo-input input{display:none}.privacy-note{font-size:12px;color:var(--muted)}.dialog-actions{display:flex;justify-content:flex-end;gap:9px;margin-top:22px}.hidden{display:none!important}.toast{position:fixed;left:50%;bottom:25px;z-index:99;transform:translateX(-50%);padding:12px 18px;border-radius:11px;background:#172554;color:white;box-shadow:var(--shadow);font-size:14px}@media(max-width:650px){.topbar{height:64px;padding:0 14px}.brand small{display:none}.brand strong{font-size:13px}.view{padding:18px 13px 60px}.hero{padding:28px 23px;border-radius:21px}.hero p:not(.eyebrow){font-size:15px}.toolbar{display:grid}.toolbar select{width:100%}.subject-grid{grid-template-columns:1fr 1fr;gap:10px}.subject-card{min-height:205px;padding:15px}.subject-card h2{font-size:15px}.subject-symbol{width:42px;height:42px}.form-row{grid-template-columns:1fr}.banner-top{display:block}.banner-top .primary{margin-top:18px}.banner-stats{gap:13px}.segment{grid-template-columns:1fr}.shadow-options{grid-template-columns:1fr}.subject-banner{padding:22px}.dialog-actions>*{flex:1}}@media(max-width:390px){.subject-grid{grid-template-columns:1fr}}