:root{--bg:#f6f7fb;--ink:#111827;--muted:#6b7280;--card:#fff;--line:#e5e7eb;--accent:#0f172a;--danger:#dc2626}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Noto Sans TC",sans-serif;background:var(--bg);color:var(--ink)}.app{max-width:760px;margin:0 auto;padding:env(safe-area-inset-top) 16px 28px}.hero{display:flex;justify-content:space-between;align-items:end;padding:28px 0 18px}.eyebrow{margin:0 0 3px;color:var(--muted);font-size:13px;text-transform:uppercase;letter-spacing:.12em}h1{margin:0;font-size:38px;letter-spacing:-.04em}h2{margin:0 0 14px;font-size:20px}.hero select{border:1px solid var(--line);background:#fff;border-radius:14px;padding:10px}.tabs{display:flex;gap:8px;overflow:auto;padding:4px 0 14px;position:sticky;top:0;background:linear-gradient(var(--bg) 82%,transparent);z-index:1}.tab,.actions button,.form button,.import{border:0;border-radius:999px;padding:11px 14px;background:#e9edf5;color:#253044;font-weight:700;white-space:nowrap}.tab.active,.form button,.actions button:first-child{background:var(--accent);color:#fff}.panel{display:none}.panel.active{display:block}.card{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:18px;margin:0 0 14px;box-shadow:0 10px 28px rgba(15,23,42,.06)}.health-note{background:#eef6ff;border-color:#cfe2ff}.grid{display:grid;gap:12px}.two{grid-template-columns:1fr 1fr}.stat span{display:block;color:var(--muted);font-size:13px}.stat b{display:block;margin-top:8px;font-size:18px}.form{display:grid;gap:12px}.form label span{display:block;font-weight:700;margin:0 0 6px}.form input,.form textarea,.form select,.prediction select{width:100%;border:1px solid var(--line);border-radius:16px;padding:13px 14px;font:inherit;background:#fff}.form textarea{resize:vertical}.prediction{display:grid;grid-template-columns:1fr 1fr;gap:12px;align-items:center}.prediction output{font-size:30px;font-weight:800;text-align:right}.hint{color:var(--muted);font-size:13px;line-height:1.45}.list{display:grid;gap:10px}.item{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:13px;border:1px solid var(--line);border-radius:18px}.item small{display:block;color:var(--muted);margin-top:3px}.item button{border:0;background:#f3f4f6;border-radius:10px;padding:8px;color:#6b7280}.actions{display:flex;gap:10px;flex-wrap:wrap}.danger{background:#fee2e2!important;color:var(--danger)!important}.import{display:inline-block;cursor:pointer}.import input{display:none}@media(max-width:520px){.two,.prediction{grid-template-columns:1fr}.prediction output{text-align:left}.hero{align-items:start}h1{font-size:34px}.card{border-radius:22px}}

.photo-preview{display:none;width:100%;max-height:360px;object-fit:contain;border-radius:18px;border:1px solid var(--line);background:#f3f4f6}.photo-preview.show{display:block}.coach-output{display:grid;gap:10px}.coach-card{padding:13px;border:1px solid var(--line);border-radius:18px;background:#fafafa}.coach-card b{display:block;margin-bottom:4px}

.brand{display:flex;align-items:center;gap:12px}.brand-icon{width:54px;height:54px;border-radius:14px;flex:0 0 auto}

.helper-fab{position:fixed;right:18px;bottom:calc(18px + env(safe-area-inset-bottom));width:58px;height:58px;border:0;border-radius:50%;background:#000;color:#fff;font-size:25px;font-weight:900;box-shadow:0 14px 35px rgba(0,0,0,.28);z-index:20}.helper-box{display:none;position:fixed;right:14px;bottom:calc(88px + env(safe-area-inset-bottom));width:min(380px,calc(100vw - 28px));max-height:min(610px,calc(100vh - 130px));background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:0 24px 70px rgba(15,23,42,.25);overflow:hidden;z-index:21}.helper-box.open{display:flex;flex-direction:column}.helper-box header{display:flex;justify-content:space-between;gap:12px;align-items:center;padding:15px 16px;background:#0f172a;color:#fff}.helper-box header small{display:block;color:#cbd5e1;margin-top:2px}.helper-box header button{border:0;background:transparent;color:#fff;font-size:28px;line-height:1}.helper-messages{padding:14px;overflow:auto;display:grid;gap:10px;min-height:260px}.msg{max-width:86%;padding:10px 12px;border-radius:16px;line-height:1.35;font-size:14px;white-space:pre-wrap}.msg.user{justify-self:end;background:#0f172a;color:#fff;border-bottom-right-radius:5px}.msg.bot{justify-self:start;background:#f1f5f9;color:#0f172a;border-bottom-left-radius:5px}.helper-form{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line);background:#fff}.helper-form input{flex:1;border:1px solid var(--line);border-radius:999px;padding:12px 14px;font:inherit;min-width:0}.helper-form button{border:0;border-radius:999px;background:#0f172a;color:#fff;font-weight:800;padding:0 15px}.helper-samples{font-size:12px;color:#64748b}

/* iPhone layout fix: keep date inputs inside their cards */
.form label{min-width:0;max-width:100%}
.form input,.form textarea,.form select{min-width:0;max-width:100%}
input[type="date"]{display:block;min-width:0;max-width:100%;-webkit-appearance:none;appearance:none;}

.beta-badge{position:fixed;left:10px;bottom:calc(8px + env(safe-area-inset-bottom));font-size:10px;font-weight:800;letter-spacing:.12em;color:#94a3b8;background:rgba(255,255,255,.82);border:1px solid #e5e7eb;border-radius:999px;padding:4px 7px;z-index:19;user-select:none}