/* FASTBREAK — "Glacier Dawn" design direction.
   Pale ice surfaces, deep glacial-navy ink, aurora teal for the fasted state,
   ember orange for the break/fed moment and primary actions. */
:root{
  --ice:#EAF3F5; --ice2:#F5FAFB; --card:#FFFFFF;
  --ink:#0B2233; --ink2:#33566B; --mut:#4A6575; /* 5.47:1 on ice — AA pass */
  --teal:#0EA5A4; --teal-d:#0B7C7B; --teal-soft:#D9F2F1;
  --ember:#F4652A; --ember-d:#D14E18; --ember-soft:#FDE8DC;
  --line:#D8E6EB; --gold:#C9A24B;
  --r:18px; --rs:12px;
  --shadow:0 10px 30px rgba(11,34,51,.08);
  --font:-apple-system,BlinkMacSystemFont,"SF Pro Text","Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
}
/* Idea 85: dark mode — true dark theme for 5am fasted sessions. */
body.dark{
  --ice:#0A141C; --ice2:#0E1B25; --card:#12232E;
  --ink:#EAF3F5; --ink2:#B9D2DC; --mut:#8FA9B5;
  --teal:#2DD4D3; --teal-d:#5FE3E2; --teal-soft:#143A3D;
  --ember:#FF7A3D; --ember-d:#FF8A52; --ember-soft:#3A2318;
  --line:#23404F; --gold:#D9B45C;
  --shadow:0 10px 30px rgba(0,0,0,.45);
}
body.dark .ob-banner{filter:brightness(.85)}
body.dark input,body.dark select,body.dark textarea{background:#0E1B25;color:var(--ink);border-color:var(--line)}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;padding:0}
body{background:var(--ice);color:var(--ink);font-family:var(--font);font-size:16px;line-height:1.5;min-height:100vh}
#app{max-width:560px;margin:0 auto;min-height:100vh;position:relative;background:var(--ice)}
h1,h2,h3{margin:0;line-height:1.15;letter-spacing:-.02em}
.kicker{font-size:11px;font-weight:800;letter-spacing:.22em;text-transform:uppercase;color:var(--teal-d);margin:0 0 8px}
.display{font-size:30px;font-weight:800}
.display-xl{font-size:64px;font-weight:900;letter-spacing:-.04em}
/* Idea 81: offline banner. */
#offline-banner{background:#0B2233;color:#fff;font-size:13px;font-weight:700;text-align:center;padding:9px 12px;position:sticky;top:0;z-index:60}
/* Idea 88: tabular numerals — timer digits never jump widths. */
.display-xl,.w-timer,.w-rest-timer,.timer-digits,.fast-hero-time{font-variant-numeric:tabular-nums}
.lede{font-size:17px;color:var(--ink2);margin:10px 0 0}
.fine{font-size:13px;color:var(--mut);margin:8px 0 0}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:18px;margin:14px 0;box-shadow:var(--shadow)}
.card.teal{background:linear-gradient(135deg,#0B2233,#10465F);color:#fff;border:none}
.card.teal .t-title{color:#fff}.card.teal .t-detail{color:#BFDCE4}.card.teal .fine{color:#9CC4D2}
.card.emberline{border-left:6px solid var(--ember)}
.t-title{font-size:16px;font-weight:800;margin-bottom:6px}
.t-detail{font-size:14px;color:var(--ink2)}
.seg{display:flex;background:var(--ice);border:1px solid var(--line);border-radius:999px;padding:4px;gap:4px;margin:10px 0}
.seg button{flex:1;border:0;background:transparent;border-radius:999px;padding:10px 6px;font-weight:700;font-size:14px;color:var(--ink2);cursor:pointer}
.seg button.on{background:var(--ink);color:#fff}
.seg.big button{padding:13px 6px;font-size:15px}
.btn-ember{display:block;width:100%;border:0;border-radius:16px;background:linear-gradient(135deg,var(--ember),var(--ember-d));color:#fff;font-weight:800;font-size:16px;padding:15px;cursor:pointer;box-shadow:0 8px 20px rgba(244,101,42,.35)}
.btn-ember.big{font-size:18px;padding:17px}
.btn-teal{display:block;width:100%;border:0;border-radius:16px;background:linear-gradient(135deg,var(--teal),var(--teal-d));color:#fff;font-weight:800;font-size:16px;padding:15px;cursor:pointer}
.btn-ghost{display:inline-block;border:1.5px solid var(--line);background:#fff;border-radius:12px;padding:10px 16px;font-weight:700;font-size:14px;color:var(--ink);cursor:pointer}
.btn-row{display:flex;gap:10px;margin-top:12px}
.btn-row .btn-ember,.btn-row .btn-teal,.btn-row .btn-ghost{flex:1;width:auto}
.linklike{background:none;border:0;color:var(--teal-d);font-weight:700;font-size:14px;cursor:pointer;padding:8px}
.fld{display:block;margin:10px 0}
.fld span{display:block;font-size:13px;font-weight:700;color:var(--ink2);margin-bottom:6px}
.fld input,.time-in,.text-in{width:100%;border:1.5px solid var(--line);border-radius:12px;padding:13px;font-size:16px;font-family:var(--font);background:#fff;color:var(--ink)}
/* Idea 98: native time picker sized for thumbs. */
input[type="time"].time-in{min-height:52px;font-size:18px;padding:12px 14px}
input[type="time"].time-in::-webkit-calendar-picker-indicator{width:28px;height:28px;opacity:.75;cursor:pointer}
.pill{display:inline-flex;align-items:center;gap:5px;background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 13px;font-weight:800;font-size:14px}
/* login */
.login-wrap{padding:48px 22px 30px;text-align:center}
.login-card{text-align:left;margin-top:22px}
#auth-seg{margin:0 0 4px}
/* onboarding */
.ob-wrap{padding:28px 20px 40px}
/* topbar + tabs */
#topbar{position:sticky;top:0;z-index:20;display:flex;justify-content:space-between;align-items:center;padding:14px 18px;background:rgba(234,243,245,.92);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.brand{font-weight:900;letter-spacing:.14em;font-size:15px}
.brand-mark{color:var(--teal-d)}
.top-stats{display:flex;gap:8px}
#pages{padding:6px 16px 110px}
.page[hidden]{display:none}
#tabbar{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:560px;display:flex;background:rgba(255,255,255,.96);backdrop-filter:blur(12px);border-top:1px solid var(--line);z-index:30;padding:8px 4px calc(8px + env(safe-area-inset-bottom))}
#tabbar button{flex:1;border:0;background:none;display:flex;flex-direction:column;align-items:center;gap:3px;font-size:11px;font-weight:700;color:var(--mut);cursor:pointer;padding:6px 0}
#tabbar button .ti{font-size:20px}
#tabbar button.on{color:var(--ink)}
#tabbar button.on .ti{color:var(--ember)}
/* today */
.hero{border-radius:22px;padding:22px;margin:14px 0;color:#fff;background:linear-gradient(140deg,#0B2233 20%,#0E4A5E 70%,#0EA5A4 130%);box-shadow:var(--shadow)}
.hero .kicker{color:#7FD8D7}
.hero h2{font-size:26px}
.hero .meta{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
.chip{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.25);border-radius:999px;padding:6px 12px;font-size:13px;font-weight:700}
.tier-pick{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:10px}
.tier-btn{border:2px solid var(--line);background:#fff;border-radius:16px;padding:16px 10px;text-align:center;cursor:pointer}
.tier-btn .tt{font-weight:900;font-size:16px}
.tier-btn .ts{font-size:12px;color:var(--mut);margin-top:4px}
.tier-btn.on{border-color:var(--ember);background:var(--ember-soft)}
.ex-row{display:flex;justify-content:space-between;align-items:center;padding:12px 2px;border-bottom:1px solid var(--line)}
.ex-row:last-child{border-bottom:0}
.ex-name{font-weight:700;font-size:15px}
.ex-sub{font-size:13px;color:var(--mut)}
.setlog{display:flex;gap:8px;align-items:center;margin-top:8px;flex-wrap:wrap}
.setlog input{width:64px;border:1.5px solid var(--line);border-radius:10px;padding:9px;font-size:15px;text-align:center;font-family:var(--font)}
.setlog .done{background:var(--teal-soft);border-color:var(--teal)}
.checkline{display:flex;gap:10px;align-items:flex-start;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px}
.checkline:last-child{border:0}
/* runner */
#runner{position:fixed;inset:0;z-index:60;background:var(--ice);display:flex;flex-direction:column;max-width:560px;margin:0 auto}
#runner[hidden]{display:none}
.run-top{display:flex;align-items:center;justify-content:space-between;padding:14px 16px;background:#0B2233;color:#fff}
.run-top button{background:rgba(255,255,255,.12);border:0;color:#fff;font-size:20px;width:46px;height:46px;border-radius:50%;cursor:pointer}
.run-clock{text-align:center}
.run-clock #run-clock{font-size:34px;font-weight:900;font-variant-numeric:tabular-nums;letter-spacing:.02em}
.run-sub{display:block;font-size:11px;letter-spacing:.24em;color:#7FD8D7;font-weight:800}
.run-body{flex:1;overflow-y:auto;padding:20px 18px}
.run-ex{font-size:26px;font-weight:900;margin:6px 0}
.run-sets{font-size:15px;color:var(--ink2)}
.run-big{font-size:64px;font-weight:900;text-align:center;margin:26px 0;font-variant-numeric:tabular-nums}
.run-cue{text-align:center;font-size:17px;font-weight:700;color:var(--teal-d);min-height:28px}
.run-foot{padding:14px 18px calc(18px + env(safe-area-inset-bottom));background:#fff;border-top:1px solid var(--line)}
#run-pause.paused{background:var(--ember)}
.stoke-note{background:var(--ember-soft);border:1px solid #F5C4AB;border-radius:14px;padding:14px;margin:14px 0;font-size:14px}
.stoke-note b{color:var(--ember-d)}
.music-banner{position:fixed;bottom:0;left:50%;transform:translateX(-50%);width:100%;max-width:560px;background:#0B2233;color:#fff;padding:10px 16px;display:flex;justify-content:space-between;align-items:center;font-size:13px;z-index:70}
.music-banner[hidden]{display:none}
/* overlays */
#fast-overlay{position:fixed;inset:0;z-index:80;background:#0B2233;display:flex;flex-direction:column}
#fast-overlay[hidden]{display:none}
#fast-overlay iframe{flex:1;border:0;width:100%}
.ov-head{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;color:#fff;font-weight:800;background:#0B2233}
.ov-head button{background:rgba(255,255,255,.12);border:0;color:#fff;font-size:18px;width:42px;height:42px;border-radius:50%;cursor:pointer}
#ff-collapse{position:fixed;top:14px;right:14px;z-index:90;background:#0B2233;color:#fff;border:0;width:46px;height:46px;border-radius:50%;font-size:18px;cursor:pointer}
#ff-collapse[hidden]{display:none}
iframe.fuel-frame{width:100%;height:78vh;border:0;border-radius:var(--r);background:#fff}
iframe.fuel-frame.ff-fuel-expanded{position:fixed;inset:0;width:100%;height:100%;z-index:85;border-radius:0}
/* modal + toast */
#modal-root:empty{display:none}
.modal-veil{position:fixed;inset:0;background:rgba(11,34,51,.55);z-index:100;display:flex;align-items:flex-end;justify-content:center}
.modal{background:#fff;border-radius:22px 22px 0 0;padding:24px 20px calc(24px + env(safe-area-inset-bottom));width:100%;max-width:560px;max-height:86vh;overflow-y:auto}
.modal h3{margin-bottom:8px}
#toast-root{position:fixed;bottom:110px;left:50%;transform:translateX(-50%);z-index:120;display:flex;flex-direction:column;gap:8px;align-items:center;pointer-events:none}
.toast{background:#0B2233;color:#fff;border-radius:999px;padding:11px 20px;font-size:14px;font-weight:700;box-shadow:var(--shadow);animation:tin .25s ease}
@keyframes tin{from{opacity:0;transform:translateY(10px)}to{opacity:1}}
.badge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.badge{border:1.5px solid var(--line);border-radius:14px;padding:12px 6px;text-align:center;background:#fff}
.badge .bi{font-size:26px}
.badge .bn{font-size:11px;font-weight:800;margin-top:6px}
.badge.locked{opacity:.38}
.badge.won{border-color:var(--gold);background:#FDF6E3}
table.coach{width:100%;border-collapse:collapse;font-size:13px}
table.coach th{text-align:left;padding:8px;border-bottom:2px solid var(--line);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--mut)}
table.coach td{padding:9px 8px;border-bottom:1px solid var(--line)}
.bar{height:8px;background:var(--ice);border-radius:99px;overflow:hidden;margin-top:6px}
.bar i{display:block;height:100%;background:linear-gradient(90deg,var(--teal),var(--ember));border-radius:99px}
.glos dt{font-weight:900;color:var(--teal-d);margin-top:12px}
.glos dd{margin:4px 0 0;font-size:14px;color:var(--ink2)}
.share-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
#boot-fail{position:fixed;inset:0;z-index:200;background:rgba(11,34,51,.6);display:flex;align-items:center;justify-content:center;padding:24px}
.setrow{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.setrow:last-child{border:0}
.toggle{width:52px;height:30px;border-radius:99px;background:#CBDDE4;border:0;position:relative;cursor:pointer}
.toggle.on{background:var(--teal)}
.toggle::after{content:"";position:absolute;top:3px;left:3px;width:24px;height:24px;border-radius:50%;background:#fff;transition:left .15s}
.toggle.on::after{left:25px}
.voice-row{display:flex;gap:8px;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--line);font-size:14px}
.voice-row:last-child{border:0}
@media (min-width:600px){.display{font-size:34px}}
/* Seamless editorial imagery: full-bleed, edges dissolve into the ice, cool grade to sit in the palette */
.login-hero,.ob-banner{display:block;object-fit:cover;border-radius:0;box-shadow:none;
 -webkit-mask-image:linear-gradient(to bottom,transparent,#000 12%,#000 88%,transparent);
 mask-image:linear-gradient(to bottom,transparent,#000 12%,#000 88%,transparent);
 filter:saturate(.88) contrast(1.04) brightness(1.01);}
.login-hero{width:calc(100% + 44px);max-height:380px;margin:24px -22px 0}
.ob-banner{width:calc(100% + 40px);max-height:260px;margin:10px -20px 22px}
.chk{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink2);margin:10px 0;cursor:pointer}
.chk input{width:20px;height:20px;margin-top:1px;accent-color:var(--ember)}
/* Exercise demo: instructional photo, bottom edge dissolves into the page */
.ex-demo{display:block;width:100%;max-height:300px;object-fit:cover;border-radius:16px;margin:12px 0 4px;
 -webkit-mask-image:linear-gradient(to bottom,#000 80%,transparent);
 mask-image:linear-gradient(to bottom,#000 80%,transparent);}
.btn-ghost.lt{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.45)}
.run-side{display:flex;gap:8px}
.fld textarea{width:100%;border:1.5px solid var(--line);border-radius:12px;padding:13px;font-size:16px;font-family:var(--font);background:#fff;color:var(--ink);resize:vertical;min-height:76px}
/* PR confetti (idea 4): falling emoji, no library */
.cfetti{position:fixed;top:-24px;z-index:200;pointer-events:none;font-size:22px;animation:cfall 1.7s ease-in forwards}
@keyframes cfall{to{transform:translateY(112vh) rotate(340deg);opacity:0}}
/* Milestone road (idea 16): 42-day journey map */
.road-dot{cursor:pointer;transition:r .12s}
.road-dot:hover{r:9}
/* Program grid cells (idea 20: moved out of renderProgram's inline <style>) */
.cald{position:relative;border:1.5px solid var(--line);background:#fff;border-radius:12px;padding:10px 4px;font-weight:800;cursor:pointer;display:flex;flex-direction:column;align-items:center;font-size:15px}
.cald span{font-size:10px;color:var(--mut);font-weight:700}
.cald.won{background:var(--teal-soft);border-color:var(--teal)}
.cald.rest{background:var(--ember-soft)}
.cald.test{border-color:var(--gold);background:#FDF6E3}
.calgrid{display:grid;grid-template-columns:repeat(7,1fr);gap:7px;margin-top:12px}
/* RPE picker (idea 24) + debrief segs (idea 32): compact number buttons */
.rpe-btn{border:1.5px solid var(--line);background:#fff;border-radius:10px;min-width:38px;padding:7px 10px;font-weight:800;font-size:14px;color:var(--ink2);cursor:pointer;margin:2px}
.rpe-btn.on{background:var(--ink);color:#fff;border-color:var(--ink)}
/* Fast history calendar (idea 43) */
.fcal{display:grid;grid-template-columns:repeat(7,1fr);gap:4px;margin-top:10px}
.fcal-h{font-size:10px;font-weight:800;color:var(--mut);text-align:center}
.fcal-d{font-size:12px;font-weight:700;color:var(--ink2);text-align:center;padding:7px 0;border-radius:8px;background:var(--ice)}
.fcal-d.hit{background:var(--teal-soft);color:var(--teal-d)}
.fcal-d.today{outline:2px solid var(--ember)}
/* Fasting FAQ accordion (idea 59) */
.faq{border-bottom:1px solid var(--line);padding:10px 0}
.faq:last-child{border:0}
.faq summary{font-weight:700;font-size:14px;color:var(--ink);cursor:pointer}
.faq p{margin:8px 0 0}

/* second-100 batch 1 */
.fab-start{position:fixed;left:16px;right:16px;bottom:calc(76px + env(safe-area-inset-bottom));z-index:40;max-width:528px;margin:0 auto}
.more-h{position:sticky;top:0;z-index:5;background:var(--ice);padding:10px 2px 6px;font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--teal-d)}
body.dark .more-h{background:#0d1417}
.run-endbar{position:absolute;left:12px;right:12px;bottom:86px;z-index:60;display:flex;align-items:center;gap:10px;background:rgba(11,34,51,.96);color:#fff;border-radius:14px;padding:10px 14px;font-weight:700;font-size:14px}
.run-endbar[hidden]{display:none}
.run-endbar span{flex:1}
details.card summary{cursor:pointer;list-style:none}
details.card summary::-webkit-details-marker{display:none}
details.card summary::after{content:'▾';float:right;color:var(--mut)}
details.card:not([open]) summary::after{content:'▸'}
.glance-line{color:#BFDCE4;font-size:13px;margin:6px 0 0;font-weight:600}
/* item 60: keep the login form above the fold on small phones */
@media (max-width: 380px) {
  .login-hero { max-height: 220px; object-fit: cover; width: 100%; }
}
/* item 62: respect reduced motion — no confetti, pulse, shimmer, or smooth scrolling */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}
/* item 73: today skeleton */
.skel-hero,.skel-card{border-radius:14px;background:linear-gradient(90deg,var(--line) 25%,#f4f9fa 50%,var(--line) 75%);background-size:200% 100%;animation:shimmer 1.4s infinite}
.skel-hero{height:120px;margin:14px 0 10px}
.skel-card{height:86px;margin:0 0 10px}
@keyframes shimmer { to { background-position: -200% 0; } }
/* item 78: standardized empty state */
.empty-state{text-align:center;padding:18px 8px}
.empty-icon{font-size:34px;margin-bottom:6px}
/* item 80: visible keyboard focus + selection */
:focus-visible { outline: 2px solid var(--teal-d); outline-offset: 2px; }
::selection { background: var(--teal); color: #062a33; }

/* Program: week chooser + day list */
.week-chips{display:flex;gap:8px;margin:10px 0 4px;overflow-x:auto;padding-bottom:4px}
.wchip{flex:1;min-width:64px;border:2px solid #D8E6EB;background:#fff;border-radius:12px;padding:8px 4px;font-weight:800;font-size:14px;color:#0B2233;display:flex;flex-direction:column;align-items:center;gap:2px}
.wchip span{font-size:10px;font-weight:600;color:#6B8291}
.wchip.on{border-color:#0EA5A4;background:#E6F7F6}
.day-row{display:flex;align-items:center;gap:12px;width:100%;background:#fff;border:1px solid #E4EEF2;border-radius:14px;padding:12px;margin:8px 0;font-size:15px;color:#0B2233;text-align:left}
.day-row.is-today{border-color:#0EA5A4;background:#F2FBFB}
.day-num{width:34px;height:34px;border-radius:50%;background:#EDF4F6;color:#0B2233;font-weight:800;display:flex;align-items:center;justify-content:center;flex:none}
.day-row.is-today .day-num{background:#0EA5A4;color:#fff}
.day-name{flex:1;font-weight:600}
.pill{font-size:11px;font-weight:700;padding:3px 10px;border-radius:20px;flex:none}
.pill.done{background:#DDF3F2;color:#0B7C7B}
.pill.half{background:#E4F5F4;color:#2A9D9C}
.pill.today{background:#0EA5A4;color:#fff}
.pill.todo{background:#F0F4F6;color:#9DB2BD}
.chev{color:#9DB2BD;font-size:20px;font-weight:700}

/* ---- Flip-for-more (standing rule): tappable things flip and mini-expand in place.
   The surface stays clean; depth is one tap away. Inline card below the element;
   only expand to a sheet when the detail can't fit inline. ---- */
.flip-more{margin:10px 0 0;border:1px solid var(--line);border-left:3px solid var(--teal);
  border-radius:var(--rs);background:var(--ice2);padding:12px 14px;font-size:14px;
  line-height:1.55;color:var(--ink2);text-align:left}
.flip-more p{margin:0 0 8px}.flip-more p:last-child{margin-bottom:0}
.flip-more strong{color:var(--ink)}
/* dark variant for cards living inside the hero */
.hero .flip-more{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.28);
  border-left-color:#2DD4D3;color:#DCEFF4;margin:10px 0 0}
.hero .flip-more strong{color:#fff}
/* hero chips become ≥44px tappable buttons */
button.chip.flip-chip{font:inherit;color:inherit;cursor:pointer;padding:12px 14px;line-height:1.4}
/* tappable labels: caret rotates on expand */
.flip-caret{display:inline-block;margin-left:2px;transition:transform .18s ease;font-size:.85em}
[aria-expanded="true"] .flip-caret{transform:rotate(90deg)}
/* badges are buttons now; the shared detail card sits under the grid */
button.badge{font:inherit;color:inherit;cursor:pointer;width:100%;min-height:92px}
button.badge .bi,button.badge .bn{display:block}
/* glossary terms: tap to reveal the definition inline */
.glos-t{background:none;border:0;padding:10px 0;min-height:44px;font:inherit;
  font-weight:900;color:var(--teal-d);cursor:pointer;display:flex;align-items:center;
  gap:4px;width:100%;text-align:left}
.flip-lbl{background:none;border:0;padding:10px 0;font:inherit;font-weight:700;
  color:var(--ink);cursor:pointer;text-align:left;min-height:44px;display:inline-flex;
  align-items:center;gap:4px}