:root{
  --bg:#0f1115; --card:#171a21; --card-2:#1e222b; --line:#2a2f3a;
  --text:#e8eaf0; --dim:#8b93a5; --faint:#5b6373;
  --run:#4ea8ff; --gym:#c88bff; --rest:#465063; --done:#3ddc97;
  --warn:#ffb347; --bad:#ff6b6b; --strava:#fc4c02;
  --r:14px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{
  background:var(--bg);color:var(--text);
  font:16px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  padding-bottom:env(safe-area-inset-bottom);
  overscroll-behavior-y:none;
}
h1,h2,h3,h4{margin:0;font-weight:650;letter-spacing:-.015em}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer}
.hidden{display:none !important}

/* ---------- header ---------- */
.top{
  position:sticky;top:0;z-index:20;background:rgba(15,17,21,.92);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--line);
  padding:calc(env(safe-area-inset-top) + 12px) 16px 0;
}
.top-row{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}
.top h1{font-size:19px}
.sub{margin:2px 0 0;color:var(--dim);font-size:13px}
.strava-btn{
  background:var(--strava);color:#fff;font-size:12px;font-weight:650;
  padding:7px 12px;border-radius:999px;white-space:nowrap;flex:none;
}
.strava-btn.connected{background:var(--card-2);color:var(--dim);font-weight:500}
.tabs{display:flex;gap:2px;margin-top:12px;overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{
  font-size:13.5px;color:var(--dim);padding:9px 12px;white-space:nowrap;
  border-bottom:2px solid transparent;
}
.tab.active{color:var(--text);border-bottom-color:var(--run)}

main{padding:16px 16px 64px;max-width:640px;margin:0 auto}

/* ---------- calendar ---------- */
.month-nav{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.month-nav h2{font-size:16px}
.month-nav button{font-size:26px;color:var(--dim);padding:0 14px;line-height:1}
.dow{display:grid;grid-template-columns:repeat(7,1fr);gap:5px;margin-bottom:5px}
.dow span{text-align:center;font-size:11px;color:var(--faint);font-weight:600}
.grid{display:grid;grid-template-columns:repeat(7,1fr);gap:5px}
.cell{
  aspect-ratio:1/1.12;background:var(--card);border-radius:11px;
  padding:5px 4px 4px;display:flex;flex-direction:column;align-items:center;
  gap:3px;position:relative;border:1px solid transparent;
}
.cell.empty{background:none}
.cell.today{border-color:var(--run)}
.cell .num{font-size:13px;font-weight:600;line-height:1}
.cell.off .num{color:var(--faint)}
.cell .dot{width:7px;height:7px;border-radius:50%}
.cell .km{font-size:9.5px;color:var(--dim);line-height:1;margin-top:auto}
.cell .tick{
  position:absolute;top:3px;right:4px;width:6px;height:6px;border-radius:50%;
  background:var(--done);
}
.cell.milestone::after{
  content:'';position:absolute;bottom:3px;left:50%;transform:translateX(-50%);
  width:14px;height:2px;border-radius:2px;background:var(--warn);
}
.dot.run{background:var(--run)} .dot.gym{background:var(--gym)}
.dot.rest{background:var(--rest)} .dot.done{background:var(--done)}
.dot.race{background:var(--warn)}
.legend{display:flex;gap:14px;flex-wrap:wrap;margin-top:16px;font-size:11.5px;color:var(--dim)}
.legend i{display:inline-block;width:7px;height:7px;border-radius:50%;margin-right:5px}

/* ---------- cards ---------- */
.card{background:var(--card);border-radius:var(--r);padding:14px;margin-bottom:10px}
.card h3{font-size:15px;margin-bottom:8px}
.card.tight{padding:12px 14px}
.muted{color:var(--dim);font-size:13.5px}
.meta{color:var(--faint);font-size:12px;text-transform:uppercase;letter-spacing:.06em;font-weight:600}
.pill{
  display:inline-block;font-size:11px;font-weight:650;padding:3px 8px;
  border-radius:999px;background:var(--card-2);color:var(--dim);
}
.pill.run{background:rgba(78,168,255,.16);color:var(--run)}
.pill.gym{background:rgba(200,139,255,.16);color:var(--gym)}
.pill.rest{background:var(--card-2);color:var(--dim)}
.pill.on{background:rgba(61,220,151,.16);color:var(--done)}
.pill.fast{background:rgba(255,179,71,.16);color:var(--warn)}
.pill.slow{background:rgba(255,107,107,.16);color:var(--bad)}
.pill.na{background:var(--card-2);color:var(--faint)}
.pill.warn{background:rgba(255,179,71,.16);color:var(--warn)}

/* ---------- sheet ---------- */
.sheet{position:fixed;inset:0;z-index:60}
.sheet-backdrop{position:absolute;inset:0;background:rgba(0,0,0,.6)}
.sheet-panel{
  position:absolute;left:0;right:0;bottom:0;max-height:92vh;overflow-y:auto;
  background:var(--bg);border-radius:20px 20px 0 0;
  /* leave room at the bottom so the floating Close button never covers content */
  padding:0 16px calc(env(safe-area-inset-bottom) + 88px);
  border-top:1px solid var(--line);
  animation:up .22s cubic-bezier(.2,.8,.3,1);
  -webkit-overflow-scrolling:touch;
}
@keyframes up{from{transform:translateY(20px);opacity:.4}to{transform:none;opacity:1}}
.sheet-panel.dragging{animation:none;transition:none}
.sheet-panel.snapback{transition:transform .2s cubic-bezier(.2,.8,.3,1)}

.sheet-handle{
  position:sticky;top:0;background:var(--bg);padding:14px 0 8px;
  display:flex;justify-content:center;align-items:center;z-index:3;
  cursor:grab;
}
.sheet-handle::before{content:'';width:38px;height:5px;border-radius:3px;background:var(--line)}
/* Small × top-right for anyone reaching that way, plus keyboard users. */
.sheet-x{
  position:absolute;right:-4px;top:6px;width:38px;height:38px;border-radius:50%;
  color:var(--dim);font-size:15px;line-height:1;display:flex;
  align-items:center;justify-content:center;
}
.sheet-x:active{background:var(--card-2)}

/* The main way out on a phone: fixed in the thumb zone, always reachable. */
.sheet-fab{
  position:fixed;z-index:70;
  right:16px;bottom:calc(env(safe-area-inset-bottom) + 18px);
  display:flex;align-items:center;gap:6px;
  padding:13px 20px;border-radius:999px;
  background:rgba(40,45,56,.92);color:var(--text);
  font-size:14.5px;font-weight:650;
  border:1px solid var(--line);
  backdrop-filter:saturate(160%) blur(14px);
  box-shadow:0 6px 20px rgba(0,0,0,.45);
}
.sheet-fab:active{background:var(--card-2);transform:scale(.96)}
.sheet-fab span{font-size:13px;opacity:.65}
.sheet-title{margin-bottom:2px;font-size:20px}
.sheet-date{color:var(--dim);font-size:13px;margin:0 0 14px}

/* ---------- tables ---------- */
table{width:100%;border-collapse:collapse;font-size:13.5px}
th{text-align:left;color:var(--faint);font-weight:600;font-size:11px;
   text-transform:uppercase;letter-spacing:.05em;padding:0 0 6px}
td{padding:7px 0;border-top:1px solid var(--line);vertical-align:top}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums}
.ex-note{display:block;color:var(--faint);font-size:12px;margin-top:2px;line-height:1.35}
.ex-key{color:var(--warn)}

/* ---------- log form ---------- */
.seg{display:flex;gap:6px;margin-bottom:10px}
.seg button{
  flex:1;padding:9px 0;border-radius:10px;background:var(--card-2);
  font-size:13px;color:var(--dim);font-weight:600;
}
.seg button.sel{background:var(--done);color:#08130d}
.seg button.sel.miss{background:var(--bad);color:#1a0808}
.seg button.sel.part{background:var(--warn);color:#1a1206}
textarea,input[type=number]{
  width:100%;background:var(--card-2);border:1px solid var(--line);
  color:var(--text);border-radius:10px;padding:10px;font:inherit;font-size:14px;
  resize:vertical;
}
label.fld{display:block;font-size:12px;color:var(--faint);margin:10px 0 5px;
  text-transform:uppercase;letter-spacing:.05em;font-weight:600}
.save{
  width:100%;margin-top:12px;padding:13px;border-radius:12px;
  background:var(--run);color:#04121f;font-weight:700;font-size:15px;
}
.save.saved{background:var(--done);color:#08130d}
.rpe-row{display:flex;align-items:center;gap:10px}
.rpe-row input{flex:1}

/* ---------- analysis ---------- */
.stat-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:10px}
.stat{background:var(--card-2);border-radius:10px;padding:8px 11px;flex:1;min-width:78px}
.stat .k{font-size:10.5px;color:var(--faint);text-transform:uppercase;letter-spacing:.05em;font-weight:600}
.stat .v{font-size:17px;font-weight:650;font-variant-numeric:tabular-nums;margin-top:1px}
.headline{font-size:14.5px;line-height:1.5;margin:0 0 12px}
.bar{height:6px;border-radius:3px;background:var(--card-2);overflow:hidden;margin-top:5px}
.bar i{display:block;height:100%;border-radius:3px}
.warnbox{background:rgba(255,179,71,.1);border:1px solid rgba(255,179,71,.25);
  border-radius:10px;padding:10px;font-size:12.5px;color:var(--warn);margin-bottom:10px;line-height:1.45}
svg.spark{width:100%;height:64px;display:block;margin-top:8px}

/* ---------- week / progress ---------- */
.day-row{
  display:flex;align-items:center;gap:11px;padding:11px 0;border-top:1px solid var(--line);
  cursor:pointer;
}
.day-row:first-of-type{border-top:none}
.day-row .dow-l{width:34px;font-size:12px;color:var(--faint);font-weight:650;flex:none}
.day-row .t{flex:1;font-size:14px}
.day-row .t small{display:block;color:var(--faint);font-size:12px}
.kv{display:flex;justify-content:space-between;padding:7px 0;border-top:1px solid var(--line);font-size:13.5px}
.kv:first-child{border-top:none}
.kv span:first-child{color:var(--dim)}
.kv span:last-child{font-variant-numeric:tabular-nums}
details{border-top:1px solid var(--line);padding:10px 0}
details summary{cursor:pointer;font-size:14px;font-weight:600;list-style:none}
details summary::-webkit-details-marker{display:none}
details summary::before{content:'+ ';color:var(--dim)}
details[open] summary::before{content:'– '}
details p{color:var(--dim);font-size:13.5px;margin:8px 0 0}
.loading{color:var(--faint);font-size:13px;padding:8px 0}