:root{font-family:system-ui,-apple-system,"Noto Sans TC",sans-serif;background:#eef9fa;color:#14333a;--teal:#0f9fa8;--teal-dark:#087780;--cyan:#28c3cc;--aqua:#dff6f7;--aqua-2:#eefbfb;--line:#cfe7e9;--muted:#668087;--danger:#c64b55}*{box-sizing:border-box}body{margin:0;background:linear-gradient(180deg,#dff6f7 0,#f7fbfb 280px,#eef8f9 100%);min-height:100vh}main{max-width:920px;margin:auto;padding:22px}header,.row,.section-title{display:flex;justify-content:space-between;align-items:center;gap:14px}.brand{display:inline-flex;align-items:center;gap:8px;color:var(--teal-dark);font-size:16px;font-weight:900;letter-spacing:.03em}.brand-mark{display:inline-grid;place-items:center;width:27px;height:27px;border-radius:9px;background:linear-gradient(135deg,var(--teal),var(--cyan));color:white;font-size:15px}.brand em{font-style:normal;font-size:12px;background:#cceff1;padding:4px 8px;border-radius:999px;color:#17666d}h1{font-size:30px;line-height:1.2;margin:6px 0 20px}h2{font-size:23px;margin:4px 0 14px}h3{font-size:18px;margin:4px 0}small,.hint{color:var(--muted);font-size:14px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.stats article,.panel{background:rgba(255,255,255,.97);border:1px solid var(--line);border-radius:18px;padding:18px;box-shadow:0 6px 22px rgba(14,111,119,.06)}.stats article:nth-child(1){border-top:5px solid var(--teal)}.stats article:nth-child(2){border-top:5px solid var(--cyan)}.stats article:nth-child(3){border-top:5px solid #68aee8}.stats b{display:block;font-size:31px;line-height:1.1}.stats span{font-size:15px;color:var(--muted)}.start button,button{border:0;border-radius:13px;padding:14px 17px;font-size:16px;font-weight:800;cursor:pointer;background:var(--teal);color:white;transition:.15s}.start button:hover,button:hover{background:var(--teal-dark);transform:translateY(-1px)}.start button{width:100%;font-size:19px;margin:16px 0}.secondary{background:#e6f1f2;color:#24464b}.secondary:hover{background:#d7e9eb;color:#14333a}.danger.ghost{background:#fff0f1;color:var(--danger);border:1px solid #f0c9cd}.danger.ghost:hover{background:#fde3e6}.session-actions{display:flex;gap:8px;flex-wrap:wrap}.panel{margin-top:16px}select,input{width:100%;padding:13px 14px;border:1px solid #c9e0e2;border-radius:11px;background:white;font-size:17px;color:#14333a}select:focus,input:focus{outline:3px solid rgba(15,159,168,.14);border-color:var(--teal)}select optgroup{font-weight:900;color:#24656b;background:#eaf8f8}select option{font-weight:500;color:#14333a;background:white}header select{width:auto;min-width:120px}label{font-size:15px;font-weight:650;color:#4d686e;display:grid;gap:6px}.help{font-weight:500;font-size:13px;color:#7b9094}.record{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:16px 0}.wide{grid-column:1/-1}.exercise-head{margin-top:18px;padding:14px 16px;background:var(--aqua);border-radius:14px;border-left:5px solid var(--teal)}.exercise-head h2{margin-bottom:4px}.exercise-head p{margin:4px 0}.equipment{color:#5c7479}.set,.history{display:grid;grid-template-columns:105px 1fr 115px;gap:10px;padding:13px 6px;border-top:1px solid #e2eeee;align-items:center}.set small{grid-column:2/-1}.history{color:inherit;text-decoration:none;border-radius:10px}.history:hover{background:#eef9f9}.history b{font-size:15px}.history span{font-size:15px}.inline{display:flex;gap:9px}.inline input{flex:1}.year-badge{background:var(--aqua);color:var(--teal-dark);font-size:14px;font-weight:800;padding:7px 10px;border-radius:999px}.history-detail{margin-top:16px;padding:14px;background:#f6fbfb;border:1px solid var(--line);border-radius:14px}.history-detail .section-title a{color:var(--teal-dark);font-weight:700;text-decoration:none}.history-actions{display:flex;align-items:center;gap:12px}.history-actions form{margin:0}.danger-link{background:none!important;color:var(--danger);padding:0;border-radius:0;font-size:14px}.danger-link:hover{background:none!important;transform:none;text-decoration:underline}.detail-row{display:grid;grid-template-columns:minmax(180px,1fr) auto;gap:6px 12px;padding:12px 2px;border-top:1px solid #e0ecee}.detail-row:first-of-type{margin-top:8px}.detail-row small{grid-column:1/-1}.flash{margin:4px 0 14px;padding:12px 14px;border-radius:12px;background:#dff5f6;border:1px solid #bde5e8;color:#17666d;font-weight:700}footer{text-align:center;color:#74888c;padding:26px 0;font-size:13px}.session-state{border-top:5px solid var(--cyan)}.optional{font-size:13px;color:var(--muted);background:#eef5f5;padding:6px 9px;border-radius:999px}.state-form{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:14px}.state-form.compact{margin:12px 0 4px}.state-edit{margin:14px 0;padding:12px 14px;background:#f5fbfb;border:1px solid var(--line);border-radius:13px}.state-edit summary{cursor:pointer;font-weight:800;color:var(--teal-dark)}.state-summary{display:flex;flex-wrap:wrap;gap:7px 12px;margin:10px 0 14px;padding:12px;background:var(--aqua);border-radius:12px}.state-summary b{width:100%}.state-summary span{font-size:14px}.state-summary small{width:100%}@media(max-width:600px){main{padding:13px}.grid{grid-template-columns:repeat(3,1fr);gap:7px}.stats article{padding:13px 10px}.stats b{font-size:25px}.stats span{font-size:13px}.record{grid-template-columns:1fr 1fr}.record .wide{grid-column:1/-1}.set,.history{grid-template-columns:86px 1fr auto}.history b,.history span{font-size:13px}.detail-row{grid-template-columns:1fr}header{align-items:flex-start}header select{max-width:125px}h1{font-size:25px}h2{font-size:21px}label{font-size:15px}select,input{font-size:16px}.section-title{align-items:flex-start}.state-form{grid-template-columns:1fr 1fr}.state-form .wide{grid-column:1/-1}.session-actions{justify-content:flex-end}.session-actions button{padding:11px 12px}.history-actions{flex-direction:column;align-items:flex-end;gap:5px}}
/* v0.1.2 UI polish: Momentum identity + user settings */
.hero-brand{padding:2px 0 10px}.brand-line{display:flex;align-items:center;gap:10px;color:var(--teal-dark)}.brand-line strong{font-size:21px;letter-spacing:.09em}.brand-line em{font-style:normal;font-size:12px;background:#cceff1;padding:4px 8px;border-radius:999px;color:#17666d}.tagline{margin:4px 0 0 38px;font-size:15px;font-style:italic;color:#5c7b80;letter-spacing:.02em}.user-tools{display:flex;align-items:center;gap:8px}.user-tools form{margin:0}.user-settings{position:relative}.user-settings>summary{list-style:none;display:grid;place-items:center;width:46px;height:46px;border:1px solid #c9e0e2;border-radius:13px;background:#fff;cursor:pointer;font-size:19px}.user-settings>summary::-webkit-details-marker{display:none}.user-settings[open]>summary{outline:3px solid rgba(15,159,168,.12);border-color:var(--teal)}.user-settings-card{position:absolute;z-index:20;right:0;top:54px;width:260px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:0 12px 34px rgba(14,111,119,.16)}.user-settings-card button{width:100%;margin-top:10px;padding:11px}.dashboard-title{margin:10px 0 14px}.dashboard-title small{font-weight:900;letter-spacing:.12em;color:var(--teal)}.dashboard-title h1{margin:3px 0 2px}.dashboard-title p{margin:0;color:var(--muted)}
@media(max-width:600px){.brand-line strong{font-size:18px}.tagline{margin-left:37px}.user-tools{gap:5px}.user-settings>summary{width:42px;height:42px}.user-settings-card{position:fixed;top:82px;right:13px;left:13px;width:auto}header select{max-width:110px}.dashboard-title{margin-top:8px}}