:root {
  --bg: #0e0f13; --card: #17181f; --card2: #20222b; --line: #2c2f3b;
  --text: #eceef4; --muted: #9a9fb2; --accent: #a78bfa; --accent-ink: #160d33;
  --warn: #f2c14e; --danger: #ff6b6b;
  --tabh: 64px; --sb: env(safe-area-inset-bottom, 0px);
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; overscroll-behavior: contain; }
body {
  margin: 0; background: var(--bg); color: var(--text);
  font: 17px/1.45 "IBM Plex Sans Thai", "Noto Sans Thai", system-ui, sans-serif;
  -webkit-tap-highlight-color: transparent; overflow-x: hidden;
}
#view {
  max-width: 520px; margin: 0 auto;
  padding: calc(12px + env(safe-area-inset-top, 0px)) max(12px, env(safe-area-inset-right)) calc(var(--tabh) + 110px + var(--sb)) max(12px, env(safe-area-inset-left));
}
h1 { font-size: 1.5rem; line-height: 1.25; margin: 0 0 6px; }
h2 { font-size: 1.3rem; margin: 8px 0; }
h3 { font-size: 1.05rem; margin: 14px 0 6px; color: var(--accent); }
a { color: var(--accent); }
p { margin: 6px 0; }
.muted { color: var(--muted); font-size: .92rem; }
.pad { padding: 0 4px; }
.th { font-family: "IBM Plex Sans Thai", "Noto Sans Thai", system-ui, sans-serif; line-height: 1.65; }
.center { text-align: center; }
.card { background: var(--card); border-radius: 16px; padding: 14px 16px; margin: 10px 0; }
.credit { font-size: .8rem; color: var(--muted); text-align: center; margin: 18px 0; }

/* buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-height: 48px; padding: 0 16px; border: 1px solid var(--line); border-radius: 14px;
  background: var(--card2); color: var(--text); font: inherit; font-weight: 600; text-decoration: none; cursor: pointer;
}
.btn:disabled { opacity: .35; }
.btn.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.btn.danger { background: var(--danger); color: #2a0707; border-color: var(--danger); }
.btn.ghost { background: transparent; }
.btn.big { width: 100%; min-height: 60px; font-size: 1.15rem; margin: 6px 0; }
.btn.small { min-height: 44px; padding: 0 12px; font-size: .95rem; }
.danger-text { color: var(--danger); width: 100%; margin-top: 10px; }
.warn-text { color: var(--warn); }
.file { cursor: pointer; }
.row { display: flex; gap: 8px; }
.row > * { flex: 1; }

/* banners, segmented control, chips */
.banner { display: block; background: #211a3a; border: 1px solid var(--accent); color: var(--text); border-radius: 14px; padding: 12px 16px; margin: 8px 0; text-decoration: none; }
.banner b { display: block; color: var(--accent); }
.banner span { font-size: .9rem; color: var(--muted); }
.banner.warn { background: #33290f; border-color: var(--warn); }
.banner.warn b { color: var(--warn); }
.seg { display: flex; background: var(--card); border-radius: 14px; padding: 4px; gap: 4px; margin: 6px 0; }
.seg button { flex: 1; min-height: 48px; border: 0; border-radius: 11px; background: transparent; color: var(--muted); font: inherit; font-size: .9rem; font-weight: 600; line-height: 1.2; padding: 4px 6px; }
.seg button.on { background: var(--card2); color: var(--accent); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 10px 0; }
.chip { display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 0 14px; border-radius: 22px; border: 1px solid var(--line); background: var(--card); color: var(--text); font: inherit; font-size: .95rem; }
.chip.on { border-color: var(--accent); color: var(--accent); }
.chip small { font-size: .7rem; background: var(--accent); color: var(--accent-ink); border-radius: 8px; padding: 0 6px; }
.chip button { min-width: 36px; min-height: 36px; border: 0; background: transparent; color: var(--muted); font-size: 1.2rem; }
.tag { display: inline-block; font-size: .72rem; font-weight: 700; color: var(--accent); border: 1px solid var(--accent); border-radius: 6px; padding: 0 5px; }
.exlist li .sspill { display: inline-block; margin-left: 4px; vertical-align: 1px; }

/* exercise list */
.exlist { list-style: none; padding: 0; margin: 10px 0; counter-reset: ex; }
.exlist li { display: flex; justify-content: space-between; gap: 10px; background: var(--card); border-radius: 12px; padding: 10px 14px; margin: 6px 0; }
.exlist li > div:not(.kgcol) { min-width: 0; flex: 1; }
.exlist li.tap { align-items: center; min-height: 48px; cursor: pointer; -webkit-tap-highlight-color: transparent; }
.exlist li.tap:active { background: var(--card2); }
.thumb { flex: none; width: 48px; height: 48px; border-radius: 10px; overflow: hidden; background: var(--card2); }
.thumb img, .thumb .ph { width: 48px; height: 48px; object-fit: cover; display: block; }
.thumb .ph { animation: pulse 1.2s ease-in-out infinite alternate; }
.exlist li span { display: block; }
.kgcol { text-align: right; font-size: .9rem; white-space: nowrap; flex-shrink: 0; }
.kgcol span { display: block; }
.up { color: var(--accent); font-weight: 700; }
.up.big { font-size: 1.25rem; }
.stats { display: flex; gap: 8px; margin-top: 8px; }
.stats div { flex: 1; background: var(--card2); border-radius: 12px; padding: 10px; text-align: center; }
.stats b { display: block; font-size: 1.6rem; color: var(--accent); }
.stats span { font-size: .85rem; color: var(--muted); }

/* bottom tabs + dock */
#tabs {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 10; display: flex; justify-content: center;
  background: #0b0c10; border-top: 1px solid var(--line); padding-bottom: var(--sb);
}
#tabs a { flex: 1; max-width: 104px; height: var(--tabh); display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px; color: var(--muted); text-decoration: none; font-size: .75rem; }
#tabs a svg { width: 24px; height: 24px; fill: currentColor; }
#tabs a.on { color: var(--accent); }
.dock {
  position: fixed; left: 0; right: 0; bottom: calc(var(--tabh) + var(--sb)); z-index: 9;
  max-width: 520px; margin: 0 auto; padding: 8px 12px; background: linear-gradient(transparent, var(--bg) 22%);
}
body.workout #tabs { display: none; }
body.workout .dock { bottom: 0; padding-bottom: calc(8px + var(--sb)); }
body.workout #view { padding-bottom: calc(132px + var(--sb)); } /* = dock height (see .navrow / #done-btn) */

/* player */
.phead { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.ptitle { font-weight: 600; color: var(--muted); text-align: center; flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.progress { height: 6px; background: var(--card2); border-radius: 3px; margin: 10px 0; overflow: hidden; }
.progress i { display: block; height: 100%; background: var(--accent); transform-origin: left; transition: transform .25s ease; }
.ex h1 { font-size: 1.4rem; margin: 0 0 4px; }
.pics { display: flex; gap: 8px; margin: 8px 0; }
.exhead { display: flex; align-items: center; gap: 10px; margin: 4px 0 6px; }
.exhead > div:first-child { flex-shrink: 0; }
.exhead .pics { margin: 0; }
.exhead .pics img, .exhead .pics .ph { flex: none; width: 64px; max-width: 64px; height: 64px; }
.exinfo { flex: 1; min-width: 0; }
.exinfo p { margin: 0; }
.warm { font-size: .8rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.pics img { flex: 1; min-width: 0; aspect-ratio: 1; object-fit: cover; border-radius: 12px; background: var(--card2); }
.pics.small img { max-width: 104px; }
.target { font-size: 1.05rem; font-weight: 700; line-height: 1.3; }
.note { background: var(--card); border-radius: 12px; padding: 6px 10px; font-size: .9rem; line-height: 1.5; margin: 6px 0; }
.note.clamp { position: relative; display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 2; line-clamp: 2; overflow: hidden; padding: 0 52px 0 10px; border: solid transparent; border-width: 6px 0; }
.note.clamp::after { content: "more"; position: absolute; right: 8px; bottom: 0; color: var(--accent); font-size: .8rem; line-height: 1.5; }
.note.clamp.open { display: block; }
.note.clamp.open::after { content: "less"; }
.last { font-weight: 600; }
.logged { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0; }
.logged .chip { padding-right: 2px; }
.lastrow { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin: 6px 0 2px; font-size: .9rem; }
.lastrow .last { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.setlabel { font-size: 1.05rem; font-weight: 700; white-space: nowrap; }
.linkbtn { min-height: 40px; width: 100%; font-size: .9rem; }
.stepper { display: flex; gap: 8px; margin: 6px 0; }
.stepper > button {
  width: 60px; min-height: 56px; flex-shrink: 0; border-radius: 16px; border: 1px solid var(--line);
  background: var(--card2); color: var(--text); font-size: 1.8rem; font-weight: 700;
}
.stepper label { flex: 1; min-width: 0; position: relative; }
.stepper input {
  width: 100%; height: 56px; border-radius: 16px; border: 2px solid var(--line); background: var(--card);
  color: var(--text); font: inherit; font-size: 2rem; font-weight: 700; text-align: center; padding: 0 44px 0 8px;
}
.stepper input:focus { outline: none; border-color: var(--accent); }
.stepper label span { position: absolute; right: 10px; top: 50%; transform: translateY(-50%); color: var(--muted); font-size: .8rem; pointer-events: none; max-width: 48px; text-align: right; line-height: 1.1; }
.navrow { display: flex; gap: 6px; margin-bottom: 6px; }
.dock .btn.big { min-height: 56px; margin: 0; }
.navrow .btn { min-height: 44px; flex: 1; padding: 0 4px; font-size: .88rem; min-width: 0; }

/* rest overlay */
#rest {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 20; max-width: 520px; margin: 0 auto;
  background: #15131f; border-top: 2px solid var(--accent); border-radius: 20px 20px 0 0;
  padding: 14px 16px calc(14px + var(--sb)); text-align: center; box-shadow: 0 -10px 40px #000a;
}
.restlabel { color: var(--muted); text-transform: uppercase; letter-spacing: .15em; font-size: .85rem; }
.restnum { font-size: 5rem; font-weight: 700; line-height: 1.05; font-variant-numeric: tabular-nums; color: var(--accent); }
.restbar { height: 6px; background: var(--card2); border-radius: 3px; overflow: hidden; margin: 8px 0; }
.restbar i { display: block; height: 100%; width: 100%; background: var(--accent); transform-origin: left; transition: transform .25s linear; }
#rest .btn { min-height: 56px; }

/* sheet */
#sheet { position: fixed; inset: 0; z-index: 30; }
.backdrop { position: absolute; inset: 0; background: #000b; }
.panel {
  position: absolute; left: 0; right: 0; bottom: 0; max-width: 520px; margin: 0 auto; max-height: 88vh; overflow-y: auto;
  background: var(--card); border-radius: 20px 20px 0 0; padding: 16px 16px calc(16px + var(--sb));
}
.panel .close { float: right; }
.panel ol, .panel ul { padding-left: 22px; }
.panel li { margin: 4px 0; }
.pics.large img { max-width: none; }
.ask { font-size: 1.1rem; margin: 8px 0 16px; }
.swapopt { display: flex; align-items: center; gap: 12px; width: 100%; min-height: 64px; margin: 8px 0; padding: 6px; text-align: left; border: 1px solid var(--line); border-radius: 14px; background: var(--card2); color: var(--text); font: inherit; }
.swapopt .pics { margin: 0; flex-shrink: 0; }
.swapopt .pics img { width: 56px; max-width: 56px; }

#toast {
  position: fixed; left: 50%; transform: translateX(-50%); bottom: calc(var(--tabh) + 90px + var(--sb)); z-index: 40;
  background: var(--text); color: var(--bg); padding: 10px 18px; border-radius: 12px; font-weight: 600; max-width: 90vw;
}

/* native feel: no tap delay, no selection/highlight on controls, contained overscroll */
button, a, label.btn, .chip, .seg button, #tabs a { touch-action: manipulation; -webkit-user-select: none; user-select: none; -webkit-tap-highlight-color: transparent; }
body { overscroll-behavior-y: contain; }
.panel { overscroll-behavior: contain; }
button:active, .btn:active, .chip:active { transform: scale(.97); }

/* skeletons: fixed square boxes so nothing shifts when pictures / data arrive */
.pics .ph { flex: 1; aspect-ratio: 1; border-radius: 12px; }
.pics.small .ph { max-width: 104px; }
.swapopt .pics .ph { width: 56px; max-width: 56px; flex: none; }
.pics .ph, .pics img, .sk { background: var(--card2); animation: pulse 1.2s ease-in-out infinite alternate; }
.pics img { animation: none; }
.sk { height: 16px; border-radius: 8px; margin: 10px 0; }
.sk.short { width: 60%; }
@keyframes pulse { from { opacity: 1; } to { opacity: .45; } }

/* sheets + rest slide up */
#sheet .backdrop { animation: fade-in .2s ease-out; }
#sheet .panel { animation: sheet-up .22s cubic-bezier(.2,.8,.2,1); }
#sheet.closing .backdrop { animation: fade-out .18s ease-in forwards; }
#sheet.closing .panel { animation: sheet-down .18s ease-in forwards; }
#rest.enter { animation: sheet-up .22s cubic-bezier(.2,.8,.2,1); }
@keyframes sheet-up { from { transform: translateY(100%); } }
@keyframes sheet-down { to { transform: translateY(100%); } }
@keyframes fade-in { from { opacity: 0; } }
@keyframes fade-out { to { opacity: 0; } }

/* view transitions: screens + prev/next exercise (transform/opacity only) */
#tabs { view-transition-name: tabs; }
::view-transition-old(root), ::view-transition-new(root) { animation-duration: .2s; animation-timing-function: cubic-bezier(.2,.8,.2,1); }
::view-transition-old(root) { animation-name: fade-out; }
::view-transition-new(root) { animation-name: fade-in; }
html[data-dir=fwd]::view-transition-old(root) { animation-name: out-left; }
html[data-dir=fwd]::view-transition-new(root) { animation-name: in-right; }
html[data-dir=back]::view-transition-old(root) { animation-name: out-right; }
html[data-dir=back]::view-transition-new(root) { animation-name: in-left; }
@keyframes out-left { to { opacity: 0; transform: translateX(-24px); } }
@keyframes in-right { from { opacity: 0; transform: translateX(24px); } }
@keyframes out-right { to { opacity: 0; transform: translateX(24px); } }
@keyframes in-left { from { opacity: 0; transform: translateX(-24px); } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after, ::view-transition-group(*), ::view-transition-old(*), ::view-transition-new(*) { animation: none !important; transition: none !important; }
}

#update { position: fixed; left: 0; right: 0; top: 0; z-index: 25; max-width: 520px; margin: 0 auto; padding: calc(8px + env(safe-area-inset-top, 0px)) 12px 8px; }
#update button { width: 100%; min-height: 48px; border: 0; border-radius: 14px; background: var(--accent); color: var(--accent-ink); font: inherit; font-weight: 700; box-shadow: 0 6px 20px #000a; animation: fade-in .2s ease-out; }
.upd { border: 1px solid var(--accent); }
body.has-update #view { padding-top: calc(76px + env(safe-area-inset-top, 0px)); }
#toast { width: max-content; text-align: center; }
[hidden] { display: none !important; }

/* this-week card */
.weekcard { display: flex; flex-direction: column; gap: 6px; height: 68px; justify-content: center; margin: 8px 0; padding: 0 16px; background: var(--card); border-radius: 14px; color: var(--text); text-decoration: none; }
.wdots { display: flex; justify-content: space-between; }
.wd { display: flex; flex-direction: column; align-items: center; gap: 2px; width: 28px; font-size: .68rem; line-height: 1; color: var(--muted); }
.wd i { width: 18px; height: 18px; border-radius: 50%; border: 2px solid var(--line); box-sizing: border-box; }
.wd.on i { background: var(--accent); border-color: var(--accent); }
.wd.now { color: var(--text); }
.wd.now:not(.on) i { border-color: var(--muted); }
.wcount { font-size: .85rem; color: var(--muted); line-height: 1.1; }
.wcount b { color: var(--text); }
.wcount span { float: right; color: var(--accent); }
.exlist li .sspill { max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ===== desktop (>= 900px): sidebar + wider content. Phone rules above are untouched. ===== */
@media (min-width: 900px) {
  body:not(.workout) { padding-left: 200px; }
  #tabs {
    top: 0; right: auto; width: 200px; height: 100vh; flex-direction: column; justify-content: flex-start;
    gap: 4px; padding: 76px 12px 16px; border-top: 0; border-right: 1px solid var(--line);
  }
  #tabs::before { content: "Gym Plan"; position: absolute; top: 22px; left: 24px; font-size: 1.3rem; font-weight: 700; color: var(--text); }
  #tabs a { flex: none; max-width: none; height: 48px; flex-direction: row; justify-content: flex-start; gap: 12px; padding: 0 14px; border-radius: 12px; font-size: 1rem; }
  #tabs a.on { background: #211a3a; }
  #view, body.workout #view { max-width: 1100px; padding: 28px 32px 48px; }
  body:not(.workout) #update { left: 200px; }
  body[data-sub]:is([data-r=history], [data-r=explore]) #view { max-width: 800px; }
  body[data-sub][data-r=plan] #view { max-width: 760px; }
  body.workout #view { max-width: 640px; }
  .card { margin: 12px 0; }

  /* docks are part of the page flow, buttons keep a normal width */
  .dock, body.workout .dock { position: static; max-width: none; padding: 8px 0 0; background: none; }
  .dock .btn.big { width: auto; min-width: 260px; padding: 0 32px; }
  body.workout .dock .btn.big { width: 100%; }

  /* Today */
  .weekcard { max-width: 560px; }
  .seg { max-width: 460px; }
  .exlist { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .exlist li { margin: 0; }
  body.workout .exlist { grid-template-columns: 1fr; }

  /* Player */
  .ex { background: var(--card); border-radius: 20px; padding: 20px 24px; margin: 12px 0; }
  .exhead { gap: 20px; }
  .exhead .pics img, .exhead .pics .ph { width: 140px; max-width: 140px; height: 140px; }
  .ex h1 { font-size: 1.6rem; }
  #rest { left: 0; right: 0; top: 0; bottom: 0; margin: auto; height: fit-content; width: 420px; max-width: calc(100vw - 32px); border: 2px solid var(--accent); border-radius: 20px; padding: 18px 20px; }

  /* Sheets: centred dialog */
  .panel { top: 0; bottom: 0; height: fit-content; max-width: 600px; max-height: 85vh; border-radius: 20px; padding: 20px 24px; box-shadow: 0 20px 60px #000c; }
  #sheet .panel, #sheet.closing .panel { animation: fade-in .18s ease-out; }
  #sheet.closing .panel { animation: fade-out .15s ease-in forwards; }
  #toast { bottom: 32px; }

  /* History */
  .cols { display: grid; gap: 0 24px; align-items: start; }
  .cols > * { min-width: 0; }
  #view > .cols { grid-template-columns: 1fr 1fr; }
  #view > .cols > .c2 { grid-column: 2; grid-row: 1 / span 2; }
  #view > .cols > #h-bw { grid-column: 1; grid-row: 2; }
  .hcal { max-width: 420px; margin: 0 auto; }
  .hcal > span, .hcal > button { min-height: 0; }
  .hchart { max-height: 340px; }

  /* Plan */
  body[data-r=plan]:not([data-sub]) #view { display: grid; grid-template-columns: 1fr 1fr; gap: 0 20px; align-items: start; }
  body[data-r=plan]:not([data-sub]) #view > :not(.pl-card) { grid-column: 1 / -1; }
  .pl-card { margin: 6px 0; }

  /* Explore */
    .cols.x { grid-template-columns: 420px 1fr; gap: 0 32px; }
#view .cols.x > .c1 { position: sticky; top: 24px; }
  .xmap { height: min(70vh, 560px); }
  .xchips { flex-wrap: wrap; overflow-x: hidden; overflow-y: auto; max-height: 112px; margin: 8px 0; padding: 0; }
  .cols .xchips { max-height: none; overflow: visible; }
  .xlist { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
  .xrow { margin: 0; }
  .cols .xlist { grid-template-columns: 1fr; }
  .xq { max-width: 560px; }

  /* focus rings */
  :focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
  .stepper input:focus-visible { outline: none; }
}
@media (min-width: 900px) and (hover: hover) {
  .btn:not(:disabled):hover, .chip:hover, .seg button:hover, .swapopt:hover, .pl-ib:not(:disabled):hover, .stepper > button:hover { filter: brightness(1.15); cursor: pointer; }
  .btn.ghost:hover { background: var(--card2); }
  .exlist li.tap:hover, .hrow:hover, .xrow:hover, .pl-row:hover, .banner:hover, .weekcard:hover { background: var(--card2); }
  #tabs a:hover { background: var(--card); color: var(--text); }
  #tabs a.on:hover { background: #211a3a; color: var(--accent); }
  .hcal > button:hover { filter: brightness(1.25); cursor: pointer; }
  .hrow, .xrow, .weekcard { cursor: pointer; }
}
@media (min-width: 1500px) {
  #view { max-width: 1320px; }
  body.workout #view { max-width: 640px; }
  body[data-sub]:is([data-r=history], [data-r=explore]) #view { max-width: 800px; }
  body[data-sub][data-r=plan] #view { max-width: 760px; }
  body:not(.workout) .exlist { grid-template-columns: repeat(3, 1fr); }
  .cols.x { grid-template-columns: 460px 1fr; }
  body[data-r=explore]:not([data-sub]) .xlist { grid-template-columns: repeat(3, 1fr); }
  body[data-r=explore]:not([data-sub]) .cols .xlist { grid-template-columns: 1fr 1fr; }
}

/* Next-session kg override (Guide sheet opened from Today) */
.nkrow { background: var(--card2); border: 1px solid var(--line); border-radius: 14px; padding: 10px; margin: 8px 0 12px; clear: both; }
.nkrow .stepper { margin: 6px 0 0; gap: 6px; align-items: stretch; }
.nkrow .stepper > button:not(.btn) { width: 44px; min-height: 44px; font-size: 1.4rem; border-radius: 12px; }
.nkrow .stepper .btn { flex-shrink: 0; width: auto; padding: 0 14px; min-height: 44px; font-size: 1rem; font-weight: 700; border-radius: 12px; }
.nkrow .stepper input { height: 44px; font-size: 1.3rem; border-radius: 12px; padding: 0 40px 0 6px; }
.nkrow .linkbtn { min-height: 32px; margin-top: 4px; }
.kgcol .tag { display: inline-block; margin-left: 4px; }