/* ===== Operation Skyfall — calm mobile design system ===== */
:root{
  --bg:#0b0c0f; --surface:#16181d; --surface2:#1e2127; --hair:#262a31; --hair2:#333842;
  --text:#f4f6f8; --muted:#939aa5; --dim:#5c626c;
  --brand:#5cd6a0; --brand-dim:#16352a;
  --amber:#f0b954; --amber-dim:#3a2f17;
  --red:#ef6f61; --red-dim:#3a1f1c;
  --blue:#6ea8fe; --violet:#a99bff;
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Inter,system-ui,sans-serif;
  --r:20px; --r-sm:14px;
  --sat:env(safe-area-inset-top); --sab:env(safe-area-inset-bottom);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);
  line-height:1.45;-webkit-font-smoothing:antialiased;overscroll-behavior-y:none}
body{max-width:520px;margin:0 auto;position:relative}
button,input{font-family:inherit}
.num{font-variant-numeric:tabular-nums;letter-spacing:-0.01em}
.muted{color:var(--muted)} .dim{color:var(--dim)}
.pressable{transition:transform .12s ease} .pressable:active{transform:scale(.965)}

/* ---- header ---- */
header{position:sticky;top:0;z-index:30;padding:calc(var(--sat) + 14px) 20px 12px;
  background:linear-gradient(180deg,var(--bg) 72%,transparent);backdrop-filter:blur(4px)}
header .hi{font-size:13px;color:var(--muted);font-weight:500}
header .ttl{font-size:26px;font-weight:800;letter-spacing:-0.02em;margin-top:1px}
header .sync{float:right;font-size:11px;color:var(--dim);margin-top:8px;display:flex;align-items:center;gap:5px}
header .sync .dot{width:7px;height:7px;border-radius:50%;background:var(--dim)}
header .sync .dot.on{background:var(--brand)}

/* ---- screens ---- */
main{padding:4px 16px calc(96px + var(--sab));}
.screen{display:none;animation:rise .32s cubic-bezier(.2,.7,.2,1)}
.screen.on{display:block}
@keyframes rise{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ---- cards ---- */
.card{background:var(--surface);border:1px solid var(--hair);border-radius:var(--r);
  padding:18px;margin-bottom:14px}
.card.tap{cursor:pointer}
.card-h{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px}
.card-t{font-size:15px;font-weight:700;letter-spacing:-0.01em}
.card-s{font-size:13px;color:var(--muted);margin-top:2px}
.link{font-size:13px;color:var(--brand);font-weight:600}

/* ---- text ---- */
.eyebrow{font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.big{font-size:44px;font-weight:800;letter-spacing:-0.03em;line-height:1}
.mid{font-size:30px;font-weight:800;letter-spacing:-0.02em;line-height:1}
.unit{font-size:15px;font-weight:600;color:var(--muted)}

/* ---- rows / grids ---- */
.row{display:flex;gap:12px} .between{justify-content:space-between} .center{align-items:center}
.wrap{flex-wrap:wrap}
.grid{display:grid;gap:12px}
.g2{grid-template-columns:1fr 1fr} .g3{grid-template-columns:1fr 1fr 1fr}

/* ---- stat tiles ---- */
.tile{background:var(--surface2);border:1px solid var(--hair);border-radius:var(--r-sm);padding:13px 14px;min-width:0}
.tile .n{font-size:21px;font-weight:800;letter-spacing:-0.02em;line-height:1.05}
.tile .l{font-size:11.5px;color:var(--muted);margin-top:4px;font-weight:500}
.tile .l2{font-size:11px;color:var(--dim);margin-top:1px}

/* ---- rings ---- */
.ring-wrap{position:relative;display:inline-grid;place-items:center}
.ring-wrap svg{transform:rotate(-90deg)} .ring-wrap circle{fill:none;stroke-linecap:round}
.ring-wrap .trk{stroke:var(--hair2)}
.ring-wrap .val{transition:stroke-dashoffset .7s cubic-bezier(.3,.8,.3,1)}
.ring-c{position:absolute;inset:0;display:grid;place-content:center;text-align:center;gap:1px}
.ring-c b{font-size:22px;font-weight:800;letter-spacing:-0.02em;line-height:1}
.ring-c span{font-size:10.5px;color:var(--muted);font-weight:600}

/* ---- pills / chips ---- */
.pill{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  padding:5px 11px;border-radius:999px;background:var(--surface2);color:var(--muted)}
.pill.good{background:var(--brand-dim);color:var(--brand)}
.pill.warn{background:var(--amber-dim);color:var(--amber)}
.pill.bad{background:var(--red-dim);color:var(--red)}
.pill.info{background:#1b2740;color:var(--blue)}
.dotpill{width:8px;height:8px;border-radius:50%}

/* ---- buttons ---- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:600;
  border-radius:14px;padding:13px 16px;background:var(--surface2);color:var(--text);cursor:pointer;
  border:1px solid var(--hair2);transition:transform .12s}
.btn:active{transform:scale(.97)}
.btn.primary{background:var(--brand);color:#062219;border-color:var(--brand)}
.btn.block{width:100%}
.btn.ghost{background:transparent}
.btn.sm{padding:8px 12px;font-size:13px;border-radius:11px}
.btn.big{padding:16px;font-size:16px;border-radius:16px}

/* ---- inputs ---- */
input[type=text],input[type=number],textarea{width:100%;background:#0d0f13;border:1px solid var(--hair2);
  color:var(--text);border-radius:12px;padding:13px 14px;font-size:16px}
textarea{resize:none;line-height:1.45;font-family:inherit}
input:focus,textarea:focus{outline:none;border-color:var(--brand)}
.lbl{font-size:12px;font-weight:600;color:var(--muted);margin-bottom:6px;display:block}

/* ---- progress bar ---- */
.bar{height:9px;background:var(--hair);border-radius:99px;overflow:hidden}
.bar > i{display:block;height:100%;border-radius:99px;transition:width .6s cubic-bezier(.3,.8,.3,1)}

/* ---- checklist ---- */
.check{display:flex;align-items:center;gap:13px;padding:13px 0;border-top:1px solid var(--hair)}
.check:first-child{border-top:0}
.check .box{width:26px;height:26px;border-radius:9px;border:2px solid var(--hair2);flex:none;
  display:grid;place-items:center;color:transparent;transition:.15s}
.check.done .box{background:var(--brand);border-color:var(--brand);color:#062219}
.check .tx{flex:1;font-size:15px;font-weight:500}
.check.done .tx{color:var(--muted)}
.check .meta{font-size:11px;color:var(--dim);font-weight:600}
.check .auto{font-size:10px;font-weight:700;color:var(--brand);background:var(--brand-dim);padding:3px 7px;border-radius:6px}

/* ---- list rows ---- */
.lrow{display:flex;align-items:center;gap:12px;padding:12px 0;border-top:1px solid var(--hair)}
.lrow:first-child{border-top:0}
.lrow .nm{flex:1;font-size:15px}
.lrow .rt{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.x{color:var(--dim);font-size:20px;padding:2px 4px;cursor:pointer}

/* ---- exercise rows ---- */
.exr{display:flex;align-items:center;gap:12px;padding:13px 0;border-top:1px solid var(--hair);cursor:pointer}
.exr:first-child{border-top:0}
.exr .box{width:24px;height:24px;border-radius:8px;border:2px solid var(--hair2);flex:none;display:grid;place-items:center;color:transparent}
.exr.done .box{background:var(--brand);border-color:var(--brand);color:#062219}
.exr.done .en{color:var(--muted);text-decoration:line-through}
.exr .en{font-size:15px;font-weight:600}
.exr .es{font-size:12.5px;color:var(--muted);margin-top:1px}
.exr .reps{font-size:13px;color:var(--brand);font-weight:700;font-variant-numeric:tabular-nums;white-space:nowrap}

/* ---- coach / status boxes ---- */
.coach{background:linear-gradient(135deg,#17211d,#161a20);border:1px solid #24352c}
.note{font-size:13px;color:var(--muted);line-height:1.5}
.good-box{background:var(--brand-dim);border:1px solid #235140;border-radius:12px;padding:12px 13px;font-size:13.5px}
.warn-box{background:var(--amber-dim);border:1px solid #55471f;border-radius:12px;padding:12px 13px;font-size:13.5px}
.bad-box{background:var(--red-dim);border:1px solid #5a2c26;border-radius:12px;padding:12px 13px;font-size:13.5px}

/* ---- segmented ---- */
.seg{display:flex;gap:6px;flex-wrap:wrap}
.seg button{flex:1;min-width:64px;padding:10px 6px;border-radius:12px;border:1px solid var(--hair2);
  background:var(--surface2);color:var(--muted);font-size:13px;font-weight:600;cursor:pointer}
.seg button.on{background:var(--brand);color:#062219;border-color:var(--brand)}

/* ---- bottom tab bar ---- */
.tabbar{position:fixed;left:50%;transform:translateX(-50%);bottom:0;width:100%;max-width:520px;z-index:40;
  display:flex;padding:8px 8px calc(8px + var(--sab));background:rgba(13,14,18,.82);
  backdrop-filter:blur(20px) saturate(1.4);border-top:1px solid var(--hair)}
.tabbar button{flex:1;background:none;border:0;color:var(--dim);display:flex;flex-direction:column;
  align-items:center;gap:3px;padding:6px 0;cursor:pointer;font-size:10.5px;font-weight:600}
.tabbar button svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.tabbar button.on{color:var(--brand)}

/* ---- toast ---- */
.toast{position:fixed;left:50%;transform:translateX(-50%) translateY(20px);bottom:calc(96px + var(--sab));
  background:var(--text);color:#0b0c0f;font-weight:700;font-size:13.5px;padding:11px 20px;border-radius:999px;
  opacity:0;pointer-events:none;transition:.28s cubic-bezier(.2,.8,.2,1);z-index:60;box-shadow:0 10px 30px #0009}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---- bottom sheet ---- */
.sheet-bd{position:fixed;inset:0;background:#000a;opacity:0;pointer-events:none;transition:.25s;z-index:50}
.sheet-bd.on{opacity:1;pointer-events:auto}
.sheet{position:fixed;left:50%;transform:translateX(-50%) translateY(100%);bottom:0;width:100%;max-width:520px;z-index:55;
  background:var(--surface);border-radius:24px 24px 0 0;border:1px solid var(--hair);border-bottom:0;
  padding:10px 18px calc(24px + var(--sab));max-height:86vh;overflow:auto;transition:transform .32s cubic-bezier(.2,.8,.2,1)}
.sheet.on{transform:translateX(-50%) translateY(0)}
.sheet .grab{width:38px;height:5px;border-radius:99px;background:var(--hair2);margin:4px auto 14px}
.sheet h3{font-size:19px;font-weight:800;letter-spacing:-0.02em;margin:0 0 4px}

/* ---- chips (quick add) ---- */
.chip{text-align:left;background:var(--surface2);border:1px solid var(--hair);border-radius:13px;padding:11px 12px;cursor:pointer}
.chip b{display:block;font-size:13.5px;font-weight:600} .chip span{font-size:11.5px;color:var(--muted)}

/* ---- misc ---- */
hr{border:0;border-top:1px solid var(--hair);margin:14px 0}
.hairtop{border-top:1px solid var(--hair);margin-top:12px;padding-top:12px}
table{width:100%;border-collapse:collapse}
th{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.05em;text-align:left;padding:8px 6px;font-weight:600}
td{padding:10px 6px;font-size:13.5px;border-top:1px solid var(--hair);font-variant-numeric:tabular-nums}
details{border-top:1px solid var(--hair)} details:first-of-type{border-top:0}
summary{list-style:none;padding:14px 0;font-weight:600;font-size:15px;cursor:pointer;display:flex;justify-content:space-between}
summary::-webkit-details-marker{display:none} summary::after{content:'›';color:var(--dim);font-size:20px;transition:.2s}
details[open] summary::after{transform:rotate(90deg)}
details .db{padding:0 0 14px;color:var(--muted);font-size:13.5px;line-height:1.55}