:root{
  --bg:#f5f1f6;--surface:#fffdfd;--surface-2:#efe8f1;--surface-3:#e7eef0;
  --ink:#252431;--muted:#777284;--line:#ded6e1;--accent:#7e668e;--accent-strong:#695376;
  --teal:#68868a;--warn:#9a7258;--ok:#5d8173;--shadow:0 8px 24px rgba(63,49,70,.06);
  --radius:20px;--nav-h:76px;
}
*{box-sizing:border-box}html{background:var(--bg)}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}
button,input{font:inherit}.hidden{display:none!important}.topbar{position:sticky;top:0;z-index:30;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:8px;padding:calc(10px + env(safe-area-inset-top)) 16px 10px;background:rgba(245,241,246,.96);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.top-title-wrap{min-width:0}.brand{font-size:10px;letter-spacing:.065em;text-transform:uppercase;color:var(--accent);font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.top-title{font-size:19px;font-weight:800;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}.top-actions{display:flex;gap:4px}.top-icon{width:40px;height:40px;border:0;border-radius:14px;background:transparent;color:var(--accent-strong);display:grid;place-items:center}.top-icon:active{background:var(--surface-2)}.top-icon svg{width:23px;height:23px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
main{padding:16px 16px calc(var(--nav-h) + 28px + env(safe-area-inset-bottom));max-width:920px;margin:0 auto}.page-lead{margin:0 0 18px}.page-lead h1{font-size:28px;line-height:1.08;margin:0 0 8px}.page-lead p{margin:0;color:var(--muted);font-size:15px;line-height:1.45}.tiny-note{font-size:12px;color:var(--muted);line-height:1.35;margin-top:8px}
.section{margin:22px 0}.section-title{font-size:13px;text-transform:uppercase;letter-spacing:.07em;color:var(--accent-strong);font-weight:850;margin:0 0 10px;padding:0 2px}.section-band{background:var(--surface-2);border:1px solid var(--line);border-radius:15px;padding:10px 12px;margin-bottom:10px;font-weight:800;color:var(--accent-strong)}
.zone-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.zone-tile{border:1px solid var(--line);background:var(--surface);border-radius:18px;padding:15px 14px;min-height:78px;text-align:left;color:var(--ink);box-shadow:var(--shadow);font-weight:780;font-size:16px;line-height:1.18}.zone-tile small{display:block;margin-top:7px;color:var(--muted);font-weight:550;font-size:12px}.zone-tile:active,.branch-card:active,.row-link:active{transform:scale(.99)}
.branch-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:14px 0 20px}.branch-card{border:0;border-radius:18px;padding:17px;text-align:left;min-height:92px;color:var(--ink);background:var(--surface-2);box-shadow:inset 0 0 0 1px var(--line)}.branch-card.alt{background:var(--surface-3)}.branch-card strong{display:block;font-size:18px}.branch-card span{display:block;color:var(--muted);font-size:13px;margin-top:6px;line-height:1.3}
.compact-list{border:1px solid var(--line);background:var(--surface);border-radius:18px;overflow:hidden;box-shadow:var(--shadow)}.row-link{width:100%;border:0;border-bottom:1px solid var(--line);background:transparent;padding:13px 14px;display:flex;align-items:center;gap:12px;text-align:left;color:var(--ink)}.row-link:last-child{border-bottom:0}.row-icon{width:30px;height:30px;border-radius:10px;background:var(--surface-2);color:var(--accent-strong);display:grid;place-items:center;flex:0 0 auto;font-weight:800}.row-text{min-width:0;flex:1}.row-text strong{display:block;font-size:15px;line-height:1.2}.row-text small{display:block;color:var(--muted);font-size:12px;margin-top:3px;line-height:1.25}.chev{color:var(--muted);font-size:20px}
.content-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:15px;margin:10px 0;box-shadow:var(--shadow)}.content-card h3{margin:0 0 9px;font-size:16px}.content-card p{margin:0;color:#4d4958;line-height:1.5;font-size:14px}.content-card ul{margin:8px 0 0;padding-left:20px}.content-card li{margin:5px 0;line-height:1.42;font-size:14px}.muted-card{background:rgba(255,255,255,.5);box-shadow:none}.status-strip{display:flex;gap:7px;flex-wrap:wrap;margin:10px 0}.chip{font-size:11px;font-weight:800;border-radius:999px;padding:5px 8px;background:var(--surface-2);color:var(--accent-strong);border:1px solid var(--line)}.chip.teal{background:#e4efee;color:#557978}.chip.warn{background:#f2e9e3;color:#88644d}
.practice{margin:16px 0;border-radius:18px;border:1px solid var(--line);overflow:hidden;background:var(--surface)}.practice-title{padding:11px 13px;background:var(--surface-2);font-weight:850;font-size:14px}.practice-row{padding:11px 13px;border-top:1px solid var(--line)}.practice-row b{display:block;font-size:12px;color:var(--accent-strong);margin-bottom:4px}.practice-row p{margin:0;font-size:13px;color:#575161;line-height:1.4}.practice-row.diff{background:#fbf6f1}
.favorite-line{display:flex;align-items:flex-start;gap:10px}.fav-toggle{margin-left:auto;border:0;background:transparent;color:var(--accent);font-size:25px;line-height:1;padding:2px 4px}.fav-toggle.active{color:#725b87}
.calc-box{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:14px;box-shadow:var(--shadow)}.criterion{display:flex;gap:11px;align-items:flex-start;padding:10px 0;border-bottom:1px solid var(--line)}.criterion:last-child{border-bottom:0}.criterion input{width:21px;height:21px;accent-color:var(--accent);margin-top:1px}.criterion span{font-size:14px;line-height:1.35}.calc-result{margin-top:12px;border-radius:15px;padding:12px 13px;font-weight:750;line-height:1.35;background:var(--surface-2);color:var(--accent-strong)}.calc-result.positive{background:#f3e7e3;color:#875f4f}.calc-result.negative{background:#e5efea;color:#557465}
.search-wrap{position:relative;margin-bottom:14px}.search-input{width:100%;border:1px solid var(--line);background:var(--surface);border-radius:16px;padding:14px 15px 14px 44px;color:var(--ink);outline:none;font-size:16px;box-shadow:var(--shadow)}.search-wrap svg{position:absolute;left:15px;top:14px;width:20px;height:20px;stroke:var(--muted);fill:none;stroke-width:2}.empty{padding:32px 12px;text-align:center;color:var(--muted)}
.exercise-head{background:linear-gradient(135deg,var(--surface-2),#f6f3f7);border:1px solid var(--line);border-radius:20px;padding:18px}.exercise-head .goal{color:var(--muted);font-size:14px;line-height:1.45}.xr-placeholder{height:150px;border-radius:17px;background:linear-gradient(135deg,#d8d8dc,#aeb0b8);display:grid;place-items:center;color:#52545c;font-weight:800;letter-spacing:.05em;margin:12px 0}.xr-placeholder span{background:rgba(255,255,255,.65);padding:7px 10px;border-radius:10px;font-size:12px}
.bottom-nav{position:fixed;left:0;right:0;bottom:0;z-index:35;height:calc(var(--nav-h) + env(safe-area-inset-bottom));padding:8px 10px env(safe-area-inset-bottom);display:grid;grid-template-columns:repeat(4,1fr);background:rgba(235,227,239,.97);backdrop-filter:blur(20px);border-top:1px solid #d8cfdd}.nav-item{border:0;background:transparent;color:#756d7d;border-radius:15px;padding:6px 2px;display:flex;flex-direction:column;align-items:center;gap:4px;font-size:11px;font-weight:700}.nav-item svg{width:23px;height:23px;stroke:currentColor;fill:none;stroke-width:2}.nav-item.active{color:var(--accent-strong);background:rgba(255,255,255,.55)}
.small-heading{font-size:14px;font-weight:850;margin:16px 2px 8px;color:var(--accent-strong)}.link-inline{color:var(--accent-strong);font-weight:750;text-decoration:none}.warning-note{border-left:4px solid var(--warn);background:#fbf6f1;border-radius:0 14px 14px 0;padding:10px 12px;color:#654f43;font-size:13px;line-height:1.4;margin:12px 0}
@media(min-width:700px){.zone-grid{grid-template-columns:repeat(3,1fr)}main{padding-left:24px;padding-right:24px}.topbar{padding-left:max(24px,calc((100vw - 920px)/2));padding-right:max(24px,calc((100vw - 920px)/2))}}