:root{font-family:system-ui,-apple-system,'Segoe UI',Arial,sans-serif;color:#14233b;background:#f4f7fc}*{box-sizing:border-box}body{margin:0}a{color:#135bc5;text-decoration:none}a:hover{text-decoration:underline}button{font:inherit}.app-shell{min-height:100vh;display:grid;grid-template-columns:262px minmax(0,1fr)}.app-side{background:#101e37;color:#ebf2ff;padding:26px 16px;display:flex;flex-direction:column;gap:12px}.brand{display:flex;align-items:center;gap:12px;padding:0 8px 30px}.brand-mark{width:43px;height:43px;border-radius:14px;background:linear-gradient(135deg,#356bff,#10bad0);display:grid;place-items:center;font-size:24px;font-weight:800}.brand strong{font-size:15px}.brand small{display:block;color:#9db1d0;margin-top:3px}.side-label{color:#92a9c9;font-size:11px;letter-spacing:1.2px;font-weight:700;padding:13px 12px 6px}.app-side nav{display:grid;gap:5px}.app-side nav a{display:block;padding:13px 15px;border-radius:12px;color:#d4e1f6;font-weight:600}.app-side nav a:hover{background:#213758;text-decoration:none;color:#fff}.side-note{margin-top:auto;border:1px solid #304766;padding:15px;border-radius:14px;font-size:13px;color:#dce8ff}.side-note small{color:#a6bad7}.app-main{min-width:0;min-height:100vh;display:flex;flex-direction:column}.app-top{display:flex;align-items:center;gap:22px;padding:22px 34px;background:#fff;border-bottom:1px solid #e5ebf4}.app-top h1{font-size:clamp(18px,2vw,25px);margin:5px 0 0}.eyebrow{font-size:11px;font-weight:800;letter-spacing:1.2px;color:#2470c7}.top-action{margin-left:auto;background:#eaf2ff;padding:10px 16px;border-radius:12px;font-weight:700}.app-content{padding:30px 34px 48px;flex:1;overflow:auto}.app-footer{padding:14px 34px;color:#718099;font-size:12px;background:#fff;border-top:1px solid #e5ebf4}.tth-app{max-width:none!important;margin:0!important;padding:0!important;font-family:inherit!important}.tth-app h1{display:none}.tth-app h2{font-size:22px;color:#142944}.tth-hero{padding:32px;background:linear-gradient(120deg,#e5f2ff,#edf8fb);border-radius:18px;border:1px solid #d8e9fa}.tth-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px}.tth-card,.tth-app article{background:#fff;padding:23px;border:1px solid #dce5f1;border-radius:16px;box-shadow:0 5px 20px #1f4f7a0a}.tth-card h3{margin:0 0 10px}.tth-app button{border:0;border-radius:10px;background:#1767cf;padding:11px 18px;color:white}.menu-toggle{display:none;border:1px solid #dce6f2;background:#fff;border-radius:8px;padding:9px 12px}@media(max-width:850px){.app-shell{display:block}.app-side{position:fixed;inset:0 auto 0 0;width:262px;z-index:20;transform:translateX(-100%);transition:transform .22s}.app-side.is-open{transform:translateX(0)}.menu-toggle{display:inline-block}.app-top{padding:18px}.app-content{padding:18px}.top-action{font-size:12px}.app-footer{padding:15px}}

/* 0.3.4 workspace components */
.tth-workspace-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin-top:20px}.tth-workspace-grid article{background:#fff;border:1px solid #dbe6f3;border-radius:18px;padding:26px;box-shadow:0 8px 24px #1f4f7a0a}.tth-workspace-grid h3{font-size:18px;margin:16px 0 8px}.tth-workspace-grid p{line-height:1.6;color:#475569}.tth-mini-icon{display:inline-grid;place-items:center;width:44px;height:44px;background:#dbeafe;color:#1d4ed8;border-radius:14px;font-weight:800}.app-side nav a:focus-visible,.top-action:focus-visible{outline:3px solid #60a5fa;outline-offset:2px}
/* TTHTCD 0.3.5 — learning resources + community demand */
.tth35-actions{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 20px}.tth35-link{padding:10px 14px;background:#e2eeff;border-radius:10px;color:#124686;text-decoration:none;font-weight:600}.tth35-panel{padding:24px 28px;background:#eaf3fc;border:1px solid #d5e6fa;border-radius:20px;margin:0 0 24px}.tth35-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;margin-top:18px}.tth35-card{padding:22px;border:1px solid #dfebf5;border-radius:18px;background:#fff;box-shadow:0 7px 25px #0f294111}.tth35-card h3{margin:10px 0;font-size:1.12rem}.tth35-card p{line-height:1.6;color:#4b6078}.tth35-pill{display:inline-block;padding:4px 9px;border-radius:10px;background:#ecf5ff;font-size:.73rem;color:#2563eb;font-weight:700}.tth35-form{display:grid;gap:14px;max-width:850px;background:#fff;padding:24px;border:1px solid #dfe9f4;border-radius:20px}.tth35-form label{display:grid;gap:7px;font-weight:600}.tth35-form input,.tth35-form textarea,.tth35-form select{font:inherit;padding:11px 13px;border:1px solid #c9d8e9;border-radius:10px;width:100%;background:#fff;color:#172c45}.tth35-form button{justify-self:start;border:0;background:#1763cf;color:#fff;padding:12px 20px;border-radius:10px;cursor:pointer}.tth35-notice{padding:12px;border:1px solid #86d4b1;background:#ecfff6;border-radius:12px}.tth35-table{border-collapse:collapse;width:100%;background:#fff}.tth35-table td,.tth35-table th{border:1px solid #dbe6f2;padding:12px;text-align:left}.tth35-table th{background:#ecf4fd}