:root{--ink:#142126;--muted:#6f7d80;--paper:#f2f4ee;--card:#fff;--line:#dfe5df;--green:#176b52;--mint:#dff2e9;--orange:#d86f38}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.5 Inter,"Segoe UI",sans-serif}.hidden{display:none!important}button,input,select,textarea{font:inherit}button{cursor:pointer;border:0;border-radius:9px;background:var(--green);color:#fff;padding:11px 18px;font-weight:650}button:hover{filter:brightness(.96)}input,select,textarea{width:100%;border:1px solid var(--line);border-radius:9px;padding:11px 12px;background:#fbfcfa;color:var(--ink);outline:none}input:focus,select:focus,textarea:focus{border-color:var(--green);box-shadow:0 0 0 3px #176b5215}label{display:block;font-size:12px;font-weight:700;color:#536366;margin-bottom:6px}.login-shell{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 15% 15%,#d7ede2,transparent 32%),var(--paper)}.login-card{width:min(420px,100%);background:#fff;padding:42px;border:1px solid var(--line);border-radius:18px;box-shadow:0 18px 60px #213a2d12}.login-card h1{font-size:30px;margin:8px 0}.login-card label{margin-top:26px}.login-card button{width:100%;margin-top:14px}.brand-mark{display:grid;place-items:center;width:52px;height:52px;border-radius:14px;background:var(--green);color:#fff;font:800 24px/1 serif}.brand-mark.small{width:38px;height:38px;border-radius:10px;font-size:18px}.eyebrow{margin:0;color:var(--green);font-size:10px;font-weight:800;letter-spacing:.16em}.muted{color:var(--muted)}.error{color:#b6412f;min-height:20px}.app{min-height:100vh;display:grid;grid-template-columns:230px 1fr}aside{position:sticky;top:0;height:100vh;padding:24px 18px;background:#122e27;color:#e8f3ee;display:flex;flex-direction:column}.brand{display:flex;gap:12px;align-items:center;margin:0 5px 34px}.brand strong,.brand span{display:block}.brand span{font-size:11px;color:#94b1a6}.nav{width:100%;text-align:left;background:transparent;color:#a9c1b8;margin:3px 0}.nav.active{background:#24483e;color:#fff}.aside-foot{margin-top:auto;font-size:12px;color:#9db4ab}.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:#54d89c;margin-right:8px;box-shadow:0 0 0 4px #54d89c22}main{padding:36px 4vw 110px;max-width:1280px;width:100%;margin:auto}header{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px}h1,h2{font-family:Georgia,"Noto Serif SC",serif;margin:4px 0}header h1{font-size:34px}.secondary{background:#fff;color:var(--ink);border:1px solid var(--line)}.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px;box-shadow:0 5px 20px #28403608}.toolbar{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:18px}.add-group>div,.word-form{display:flex;gap:8px}.add-group button,.word-form button{white-space:nowrap}.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.pill{padding:6px 10px;border-radius:999px;background:var(--mint);color:var(--green);font-size:12px;font-weight:700}.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:12px;overflow:hidden}.feature{display:flex;justify-content:space-between;align-items:center;background:#fff;padding:18px}.feature strong,.feature span{display:block}.feature span{font-size:12px;color:var(--muted)}.switch{position:relative;width:44px;height:25px;flex:none}.switch input{opacity:0;width:0;height:0}.slider{position:absolute;inset:0;background:#cbd3cf;border-radius:99px;transition:.2s}.slider:before{content:"";position:absolute;width:19px;height:19px;left:3px;top:3px;border-radius:50%;background:white;transition:.2s;box-shadow:0 1px 4px #0002}.switch input:checked+.slider{background:var(--green)}.switch input:checked+.slider:before{transform:translateX(19px)}.two-col{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}.two-col h2{margin-top:4px}.two-col textarea{margin-top:14px;resize:vertical}.word-form{margin:15px 0}.tags{display:flex;flex-wrap:wrap;gap:7px}.tag{background:#f2f5f1;border:1px solid var(--line);border-radius:999px;padding:6px 9px}.tag button{background:transparent;color:#9e4b39;padding:0 0 0 7px}.savebar{position:fixed;bottom:20px;right:4vw;left:calc(230px + 4vw);max-width:calc(1280px - 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