:root{--bg:#f4f6f8;--sidebar:#151a1f;--sidebar-2:#20272e;--surface:#fff;--surface-soft:#f8fafb;--border:#dce2e8;--border-strong:#b9c4ce;--text:#17212b;--text-dim:#637282;--accent:#116d6e;--accent-strong:#0b5556;--gold:#b2862d;--danger:#b42318;--shadow:0 18px 48px #16212b14;--radius:8px}*{box-sizing:border-box}body{background:var(--bg);min-width:320px;color:var(--text);margin:0;font-family:Avenir Next,PingFang SC,Hiragino Sans GB,Segoe UI,sans-serif}a{color:inherit;text-decoration:none}button{border-radius:var(--radius);background:var(--accent);color:#fff;cursor:pointer;border:none;min-height:38px;padding:9px 15px;font-size:14px;font-weight:650}button:hover{background:var(--accent-strong)}button:disabled{cursor:not-allowed;opacity:.55}input,textarea,select{border:1px solid var(--border);border-radius:var(--radius);width:100%;color:var(--text);background:#fff;padding:10px 12px;font-size:14px}input:focus,textarea:focus,select:focus{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px #116d6e1f}label{color:var(--text-dim);margin:14px 0 6px;font-size:13px;font-weight:650;display:block}table{border-collapse:collapse;width:100%;font-size:14px}th,td{border-bottom:1px solid var(--border);text-align:left;padding:14px 16px}th{color:var(--text-dim);letter-spacing:0;text-transform:uppercase;font-size:12px}.platform-shell{grid-template-columns:260px minmax(0,1fr);min-height:100vh;display:grid}.sidebar{background:linear-gradient(180deg, var(--sidebar), var(--sidebar-2));color:#edf2f4;padding:22px 16px}.brand-lockup{align-items:center;gap:12px;padding:6px 8px 22px;display:flex}.brand-mark{border-radius:var(--radius);color:var(--sidebar);background:#edf2f4;justify-content:center;align-items:center;width:42px;height:42px;font-weight:800;display:inline-flex}.brand-lockup strong,.user-chip strong{display:block}.brand-lockup small,.user-chip small,.side-link small{color:#edf2f4a8;margin-top:2px;font-size:12px;display:block}.side-nav{gap:6px;display:grid}.side-link{border-radius:var(--radius);border:1px solid #0000;justify-content:space-between;padding:12px 10px;display:flex}.side-link:hover,.side-link.active{background:#ffffff14;border-color:#ffffff1f}.workspace{grid-template-rows:auto 1fr;min-width:0;display:grid}.topbar{border-bottom:1px solid var(--border);background:#ffffffdb;justify-content:space-between;align-items:center;padding:18px 28px;display:flex}.topbar h1{margin:2px 0 0;font-size:22px}.eyebrow{color:var(--gold);letter-spacing:0;text-transform:uppercase;font-size:12px;font-weight:800;display:inline-block}.user-chip{background:var(--surface-soft);border:1px solid var(--border);border-radius:var(--radius);align-items:center;gap:10px;padding:8px;display:flex}.user-chip small{color:var(--text-dim)}.avatar{border-radius:var(--radius);color:var(--accent-strong);background:#dfeceb;justify-content:center;align-items:center;width:36px;height:36px;font-weight:800;display:inline-flex}.ghost-button,button.secondary{border:1px solid var(--border);color:var(--text);background:#fff}.ghost-button:hover,button.secondary:hover{background:var(--surface-soft)}.content-surface{padding:28px}.page-stack{gap:20px;display:grid}.dashboard-hero{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);grid-template-columns:minmax(0,1fr) minmax(280px,420px);align-items:stretch;gap:24px;padding:28px;display:grid}.dashboard-hero h2,.section-heading h2{margin:4px 0 8px;font-size:28px}.dashboard-hero p,.section-heading p,.module-card p,.skill-card .desc{color:var(--text-dim);margin:0;line-height:1.65}.hero-metrics{grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;display:grid}.hero-metrics div{background:var(--surface-soft);border:1px solid var(--border);border-radius:var(--radius);padding:16px}.hero-metrics strong{font-size:24px;display:block}.hero-metrics span{color:var(--text-dim);font-size:13px}.module-grid,.grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;display:grid}.module-card,.skill-card,.card,.table-panel,.roadmap-panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:0 8px 24px #16212b0d}.module-card{min-height:178px}.module-card:hover,.skill-card:hover{border-color:var(--accent);transform:translateY(-1px)}.module-card-head,.row{justify-content:space-between;align-items:center;gap:12px;display:flex}.module-code,.meta,.mono{color:var(--text-dim);font-family:SFMono-Regular,Consolas,monospace;font-size:12px}.status-pill,.badge{border:1px solid var(--border);color:var(--text-dim);border-radius:999px;padding:3px 9px;font-size:12px;font-weight:700;display:inline-flex}.status-pill.online,.status-pill.public,.badge.public{color:var(--accent-strong);background:#e5f1ef;border-color:#b9d8d3}.section-heading{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:22px}.container{max-width:1160px}.search-bar{margin:16px 0 20px}.empty{color:var(--text-dim);text-align:center;padding:36px}.error{border-radius:var(--radius);color:var(--danger);background:#fff1f0;border:1px solid #ffd0cc;margin:12px 0;padding:10px 12px;font-size:14px}.notice{border-radius:var(--radius);color:var(--accent-strong);background:#e5f1ef;border:1px solid #b9d8d3;margin:12px 0;padding:10px 12px;font-size:14px}.form-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;box-shadow:0 8px 24px #16212b0d}.toolbar{justify-content:flex-end;gap:10px;display:flex}.checkbox-row{align-items:center;gap:8px;margin:6px 0;display:flex}.checkbox-row 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