:root{--indigo: #4f46e5;--bg: #f6f7fb;--card: #ffffff;--text: #1f2430;--muted: #6b7280;--border: #e5e7eb;--green: #16a34a;--red: #dc2626}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}.app{max-width:560px;margin:0 auto;padding:16px calc(16px + env(safe-area-inset-right)) 40px calc(16px + env(safe-area-inset-left))}header{display:flex;align-items:center;justify-content:space-between}h1{font-size:22px;margin:8px 0 16px}.tabs{display:flex;gap:8px;margin-bottom:16px}.tab{flex:1;padding:10px;border:1px solid var(--border);background:var(--card);border-radius:10px;font-size:15px;cursor:pointer}.tab.active{background:var(--indigo);color:#fff;border-color:var(--indigo)}.card{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:16px;margin-bottom:16px}label{display:block;font-size:13px;color:var(--muted);margin:10px 0 4px}input{width:100%;padding:12px;font-size:16px;border:1px solid var(--border);border-radius:10px;background:#fff}button{cursor:pointer;font-size:15px}button.primary{width:100%;margin-top:14px;padding:13px;border:none;border-radius:10px;background:var(--indigo);color:#fff;font-weight:600}button.primary:disabled{opacity:.5}.link{background:none;border:none;color:var(--indigo);padding:0}.link.danger{color:var(--red);font-size:13px}.preview{margin-top:16px;padding-top:16px;border-top:1px dashed var(--border)}.row{margin-bottom:10px}.label-uk{display:block;font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.03em}.value{font-size:16px}.word-list{list-style:none;padding:0;margin:0}.word-head{display:flex;justify-content:space-between;align-items:center}.translation{color:var(--indigo);font-weight:600;margin:4px 0}.muted{color:var(--muted)}.small{font-size:13px}.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}.chip{padding:6px 12px;border:1px solid var(--border);border-radius:999px;background:#fff;font-size:13px}.chip.small{padding:3px 10px;font-size:12px}.chip.active{background:var(--indigo);color:#fff;border-color:var(--indigo)}.tags{display:flex;gap:6px;flex-wrap:wrap;margin-top:8px}.choices{display:flex;flex-direction:column;gap:10px;margin:16px 0}.choice{padding:14px;border:1px solid var(--border);border-radius:10px;background:#fff;text-align:left;font-size:16px}.choice.correct{border-color:var(--green);background:#ecfdf3}.choice.wrong{border-color:var(--red);background:#fef2f2}.quiz-word{text-align:center;font-size:28px;margin:8px 0}.center{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}.center-text{text-align:center}.auth-card{max-width:360px;width:100%}.error{color:var(--red);font-size:14px}.input-wrap{position:relative}.input-wrap input{padding-right:40px}.input-clear{position:absolute;top:50%;right:8px;transform:translateY(-50%);width:26px;height:26px;border:none;border-radius:50%;background:var(--border);color:var(--muted);font-size:18px;line-height:1;display:flex;align-items:center;justify-content:center}.load-more{display:block;width:100%;margin:4px 0 16px;padding:10px}.word-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:8px}.word-meta .tags{margin-top:0}.badge{font-size:12px;color:var(--muted);background:var(--bg);border:1px solid var(--border);border-radius:999px;padding:3px 10px;white-space:nowrap}.badge.remembered{color:var(--green);background:#ecfdf3;border-color:var(--green)}.remembered-section{margin-top:8px;border-top:1px solid var(--border);padding-top:12px}.section-toggle{background:none;border:none;padding:6px 0;font-size:15px;font-weight:600;color:var(--text)}