/* Themes: the palette of the app chrome, picked in Configuration (data-theme on <html>).
   Without data-theme the page follows the system light/dark setting. */
:root {
  --bg: #f4f5f7;
  --surface: #ffffff;
  --surface-2: #eef0f3;
  --border: #d9dde3;
  --text: #15181d;
  --muted: #5d6673;
  --accent: #1f6feb;
  --accent-text: #ffffff;
  --ok: #1a7f37;
  --warn: #9a6700;
  --danger: #cf222e;
  --log-bg: #0f1216;
  --log-text: #c9d1d9;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --bg: #0d1014;
    --surface: #161a20;
    --surface-2: #1e232b;
    --border: #2c333d;
    --text: #e8ecf1;
    --muted: #8b95a3;
    --accent: #4c8dff;
    --accent-text: #0d1014;
    --ok: #3fb950;
    --warn: #d29922;
    --danger: #f85149;
    --log-bg: #080a0d;
    --log-text: #b1bac4;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #0d1014;
  --surface: #161a20;
  --surface-2: #1e232b;
  --border: #2c333d;
  --text: #e8ecf1;
  --muted: #8b95a3;
  --accent: #4c8dff;
  --accent-text: #0d1014;
  --ok: #3fb950;
  --warn: #d29922;
  --danger: #f85149;
  --log-bg: #080a0d;
  --log-text: #b1bac4;
  color-scheme: dark;
}
:root[data-theme="monochrome"] {
  --bg: #f2f2f2;
  --surface: #ffffff;
  --surface-2: #e9e9e9;
  --border: #cfcfcf;
  --text: #111111;
  --muted: #5e5e5e;
  --accent: #1c1c1c;
  --accent-text: #ffffff;
  --ok: #3a3a3a;
  --warn: #6e6e6e;
  --danger: #111111;
  --log-bg: #161616;
  --log-text: #d4d4d4;
  color-scheme: light;
}
:root[data-theme="vivid"] {
  --bg: #120d24;
  --surface: #1c1536;
  --surface-2: #281e4a;
  --border: #3d2f6b;
  --text: #f4f0ff;
  --muted: #a99bd6;
  --accent: #ff4fa3;
  --accent-text: #120d24;
  --ok: #34e0a1;
  --warn: #ffc23d;
  --danger: #ff5c5c;
  --log-bg: #0b0818;
  --log-text: #cfc5f0;
  color-scheme: dark;
}
/* Chart series and training zones keep the same colors in every theme */
:root {
  --series-speed: #2a78d6;
  --series-incline: #1baf7a;
  --series-hr: #eb6834;
  --series-power: var(--series-speed);
  --zone-free: #c4c9d0; --zone-1: #8c939d; --zone-2: #3d84e0; --zone-3: #22a06b;
  --zone-4: #e0b030; --zone-5: #ef7a2d; --zone-6: #e0442b; --zone-7: #7c5cd6;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  --sidebar-w: 60px;
  /* One inner spacing and one corner for every card-like box */
  --pad: 16px;
  --radius: 6px;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.45 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  padding: 16px 16px 16px calc(var(--sidebar-w) + 16px);
}
/* Left-aligned next to the sidebar: the gap to it is the body padding, whatever the width */
main { max-width: 1120px; margin: 0; display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; }
.footer { text-align: center; padding: 8px 0 16px; }
h1 { font-size: 20px; font-weight: 650; }
h2 { font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .06em; color: var(--muted); margin-bottom: 12px; }
.num { font-variant-numeric: tabular-nums; }

header { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; }
.pills { display: flex; flex-wrap: wrap; gap: 8px; }
.pill {
  display: inline-flex; align-items: center; gap: 6px; min-height: 0; font-weight: 500; cursor: pointer;
  padding: 4px 10px; border-radius: 999px; font-size: 13px;
  background: var(--surface); border: 1px solid var(--border); color: var(--muted);
}
.pill::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--border); }
.pill[data-state="ready"]::before { background: var(--ok); }
.pill[data-state="busy"]::before { background: var(--warn); }
.pill[data-state="error"]::before { background: var(--danger); }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: var(--pad); }

button, select, input {
  font: inherit; color: var(--text);
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 4px;
  padding: 8px 14px; min-height: 40px;
}
/* Own arrow, away from the edge: the native one sits against it and ignores padding */
select {
  appearance: none; padding-right: 36px; text-overflow: ellipsis;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 19px) 50%, calc(100% - 14px) 50%;
  background-size: 5px 5px; background-repeat: no-repeat;
}
button { cursor: pointer; font-weight: 600; }
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: .45; cursor: not-allowed; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); }
button.danger { color: var(--danger); }
.row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
label.field { display: grid; gap: 4px; font-size: 13px; color: var(--muted); }

/* Session bar: values with icons and controls */
.dash { display: grid; grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr); padding: 0; }
.dash-half { display: grid; grid-template-columns: minmax(0, 1fr); gap: 12px; padding: var(--pad); align-content: space-between; min-width: 0; }
.dash-half + .dash-half { border-left: 1px solid var(--border); }
/* Incline and pace side by side, one above the other when there is no room */
.dash-split { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.dash-vals { display: flex; flex-wrap: wrap; gap: 6px 22px; align-items: baseline; }
.dv { display: inline-flex; align-items: baseline; gap: 6px; white-space: nowrap; }
.dv b { font-size: clamp(26px, 4vw, 38px); font-weight: 700; line-height: 1.1; }
.dv small { font-size: 13px; color: var(--muted); }
.dash-sub { font-size: 13px; color: var(--muted); }
.dash-vals { column-gap: 18px; }
.dv.alpha b { font-size: clamp(20px, 2.6vw, 28px); }
.dv.alpha small { max-width: 7.5em; white-space: normal; line-height: 1.15; }
.alpha-dot { width: 10px; height: 10px; border-radius: 50%; align-self: center; background: var(--alpha-none); flex: none; }
.alpha[data-state="aerobic"] .alpha-dot { background: var(--alpha-aerobic); }
.alpha[data-state="transition"] .alpha-dot { background: var(--alpha-transition); }
.alpha[data-state="anaerobic"] .alpha-dot { background: var(--alpha-anaerobic); }
/* Components keep no box of their own: their content lays out as if inline */
bw-icon { display: contents; }
bw-user-card, bw-zone-table, bw-workout-list, bw-chart { display: block; }
/* Zone tables scroll sideways inside their card on a narrow phone */
bw-zone-table { overflow-x: auto; }
.ico { width: 22px; height: 22px; align-self: center; fill: none; stroke: var(--muted); stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; flex: none; }
.ico .fill { fill: currentColor; stroke: none; }
button .ico { stroke: currentColor; }
.dash-ctl { display: grid; gap: 4px; grid-template-rows: auto auto 1fr; min-width: 0; }
.dash-ctl .pm { align-self: end; margin-top: 8px; }
.dash-btns, .pm { display: flex; flex-wrap: wrap; gap: 8px; }
.dash-note { grid-column: 1 / -1; padding: var(--pad); border-top: 1px solid var(--border); }
/* Icon buttons as tall as the other controls */
button.icon, .pm button { min-width: 44px; min-height: 40px; padding: 0 10px; display: inline-grid; place-items: center; font-size: 20px; line-height: 1; }
button.icon.danger { color: var(--danger); }
.off-target { color: var(--warn); }

.layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; align-items: start; }

/* Step list */
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 6px 8px; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 600; font-size: 12px; }
td.r, th.r { text-align: right; }
tr.current td { background: var(--surface-2); font-weight: 650; }
tr.done td { color: var(--muted); }
.steps-wrap { max-height: 420px; overflow: auto; }
.workout-desc { white-space: pre-wrap; font-size: 13px; color: var(--muted); margin-top: 8px; }

.log {
  background: var(--log-bg); color: var(--log-text); border-radius: 8px; padding: 10px;
  height: 220px; overflow: auto; font: 12px/1.4 ui-monospace, SFMono-Regular, Menlo, monospace;
  white-space: pre-wrap; word-break: break-all;
}
.log .tx { color: #d2a8ff; }
.log .rx { color: #e3b341; }
.log .warn { color: #f0883e; }
.log .error { color: #ff7b72; }
.log .data { color: #7ee787; }
.note { font-size: 13px; color: var(--muted); }
.banner { border-left: 4px solid var(--warn); padding: 10px 12px; background: var(--surface); border-radius: 8px; font-size: 14px; }
.hidden { display: none !important; }

/* Treadmill state */
.dev-block + .dev-block { margin-top: 14px; }
.dev-block h3 { font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.console-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px 16px; }
.console-grid div { display: grid; gap: 2px; min-width: 0; }
.console-grid span { font-size: 12px; color: var(--muted); }
.console-grid strong { font-size: 16px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mode[data-belt="running"] { color: var(--ok); }
.mode[data-belt="paused"], .mode[data-belt="stopped"] { color: var(--warn); }
.mode[data-alert="true"] { color: var(--danger); }
@media (max-width: 860px) { .console-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }

/* Chart */
.viz-head { display: flex; flex-wrap: wrap; gap: 8px 16px; align-items: center; justify-content: space-between; margin-bottom: 4px; }
.viz-head h2 { margin: 0; }
:root { --alpha-aerobic: var(--zone-3); --alpha-transition: var(--zone-5); --alpha-anaerobic: var(--zone-6); --alpha-none: var(--zone-free); }
.viz-alpha { opacity: .85; }
.viz-band { opacity: .4; }
.viz-axis.on-band { fill: var(--text); }
.viz-chip { opacity: .85; }
.viz-chip-text { font-size: 11px; font-weight: 700; fill: var(--text); }
.help { width: 32px; min-width: 32px; min-height: 32px; padding: 0; border-radius: 50%; font-size: 15px; }
.help-pop { max-width: min(460px, calc(100vw - 32px)); margin: auto; padding: var(--pad); background: var(--surface); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: 0 8px 32px rgba(0,0,0,.3); }
.pop-title { display: flex; align-items: center; gap: 8px; }
.pop-title.warn .ico { stroke: var(--warn); color: var(--warn); }
.help-pop::backdrop { background: rgba(0,0,0,.35); }
.help-pop .zones { display: flex; flex-wrap: wrap; gap: 4px 12px; }
.help-pop ul { list-style: none; padding: 0; margin: 10px 0; display: grid; gap: 8px; font-size: 14px; }
.help-pop li { display: grid; grid-template-columns: 22px 1fr; gap: 8px; align-items: baseline; }
.help-pop i { display: block; width: 18px; align-self: center; }
.help-pop i.line { height: 2px; border-radius: 1px; }
.help-pop i.dash { border-top: 2px dashed var(--muted); }
.help-pop i.block { height: 12px; border-radius: 2px 2px 0 0; background: var(--zone-2); opacity: .45; }
.help-pop i.block.alpha-key { height: 8px; border-radius: 2px; opacity: .85; background: linear-gradient(90deg, var(--alpha-aerobic) 0 50%, var(--alpha-transition) 50% 80%, var(--alpha-anaerobic) 80%); }
.help-pop i.block.cols { width: 8px; border-radius: 1px; background: linear-gradient(var(--zone-4), var(--zone-3) 50%, var(--zone-2)); opacity: .6; }
.menu { margin: 0; inset: auto; padding: 8px; display: none; gap: 6px; background: var(--surface); color: var(--text); border: 1px solid var(--border); border-radius: var(--radius); box-shadow: 0 8px 24px rgba(0,0,0,.25); }
.menu:popover-open { display: grid; }
.menu button { text-align: left; }
.viz-root { position: relative; width: 100%; }
.viz-svg { display: block; width: 100%; touch-action: pan-y; }
.viz-axis { font-size: 11px; fill: var(--muted); font-variant-numeric: tabular-nums; }
.viz-grid { stroke: var(--border); stroke-width: 1; opacity: .7; }
.viz-block { opacity: .45; }
.viz-target { stroke-width: 1.5; stroke-dasharray: 4 4; opacity: .55; fill: none; }
.viz-elapsed { fill: var(--surface); opacity: .45; }
.viz-now-dot { fill: var(--text); stroke: var(--surface); stroke-width: 2; }
.viz-empty { font-size: 13px; fill: var(--muted); }
.viz-line { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.viz-now { stroke: var(--text); stroke-width: 2; }
.viz-cross { stroke: var(--text); stroke-width: 1; opacity: .5; }
.viz-dot { stroke: var(--surface); stroke-width: 2; }
.viz-tip {
  position: absolute; pointer-events: none; z-index: 2; min-width: 170px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 8px;
  padding: 8px 10px; font-size: 13px; box-shadow: 0 4px 16px rgba(0,0,0,.18);
}
.viz-tip-head { color: var(--muted); font-variant-numeric: tabular-nums; margin-bottom: 4px; }
.viz-tip-row { display: flex; align-items: center; gap: 8px; white-space: nowrap; }
.viz-tip-row strong { font-variant-numeric: tabular-nums; }
.viz-tip-row span:last-child { color: var(--muted); }
.viz-key { width: 12px; height: 2px; border-radius: 1px; flex: none; }
.viz-key.plan { height: 8px; opacity: .35; border-radius: 2px 2px 0 0; }
.zones { display: grid; gap: 4px; margin-top: 10px; font-size: 12px; color: var(--muted); }
.zones div { display: flex; flex-wrap: wrap; gap: 4px 10px; align-items: center; }
.zones b { color: var(--text); font-weight: 600; min-width: 42px; }
.zones span { display: inline-flex; align-items: center; gap: 4px; }
.zones i { width: 10px; height: 10px; border-radius: 2px; flex: none; }
.tab { display: grid; grid-template-columns: minmax(0, 1fr); gap: 16px; }
.user-head { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }
.user-id { flex: 1; min-width: 160px; }
.user-name { font-size: 20px; font-weight: 650; }
.avatar { position: relative; width: 52px; height: 52px; border-radius: 50%; overflow: hidden; flex: none; display: grid; place-items: center; background: var(--surface-2); border: 1px solid var(--border); font-weight: 650; color: var(--muted); }
.avatar img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); gap: 12px; margin: 16px 0 8px; }
.stats div { display: grid; gap: 2px; }
.stats span { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; }
.stats strong { font-size: 22px; font-weight: 650; }
.stats small { font-size: 13px; color: var(--muted); font-weight: 400; }
.ztable td { white-space: nowrap; }
.zsummary { margin-top: 8px; font-size: 13px; color: var(--muted); }
.ztable i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 8px; }
.sidebar { position: fixed; inset: 0 auto 0 0; width: var(--sidebar-w); display: flex; flex-direction: column; justify-content: space-between; gap: 8px; padding: 12px 8px; background: var(--surface); border-right: 1px solid var(--border); z-index: 10; }
.nav-group { display: grid; gap: 6px; }
/* Optional and contextual buttons: fill the space between the top and bottom groups, from its top */
.nav-context { flex: 1; align-content: start; }
.sidebar button { border: 0; background: transparent; min-height: 44px; padding: 0; color: var(--muted); display: grid; place-items: center; border-radius: 10px; }
.sidebar .ico { stroke: currentColor; }
.sidebar button[aria-selected="true"] { background: var(--accent); color: var(--accent-text); }
.stack { display: grid; gap: 16px; }
.wlist { display: grid; grid-template-columns: minmax(0, 1fr); gap: 6px; margin-top: 10px; max-height: 70vh; overflow-y: auto; }
/* Duration, type (twice as wide) and level on one row; they wrap when narrow, so every value stays readable */
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filters .field { flex: 1 1 110px; min-width: 0; }
.filters .field:nth-child(2) { flex: 2 1 180px; }
.filters select { width: 100%; min-width: 0; }
/* Home: day and sport side by side, reload at the end; they wrap to two rows when narrow */
.home-filters { display: flex; flex-wrap: wrap; gap: 8px; align-items: end; }
.home-filters .field { flex: 1 1 150px; min-width: 0; }
.home-filters input, .home-filters select { width: 100%; min-width: 0; }
button.link { border: 0; background: none; padding: 0; min-height: 0; color: var(--accent); font: inherit; text-decoration: underline; cursor: pointer; }
.witem { display: flex; align-items: center; gap: 8px; text-align: left; font-weight: 400; padding: 8px 12px; background: var(--surface); }
.witem strong { font-weight: 650; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hr-tag { font-style: normal; font-size: 11px; font-weight: 600; color: var(--series-hr); border: 1px solid currentColor; border-radius: 999px; padding: 0 6px; white-space: nowrap; flex: none; }
.witem .sport-icon { display: flex; flex: none; }
.witem .sport-icon .ico { width: 18px; height: 18px; }
[hidden] { display: none !important; }
.witem[aria-pressed="true"] { border-color: var(--accent); box-shadow: inset 3px 0 0 var(--accent); background: var(--surface-2); }
.viz-baseline { stroke: var(--muted); stroke-width: 1; opacity: .6; }
details summary { cursor: pointer; color: var(--muted); font-size: 13px; }

@media (max-width: 860px) {
  .dash { grid-template-columns: 1fr; }
  .dash-half + .dash-half { border-left: 0; border-top: 1px solid var(--border); }
  .layout { grid-template-columns: 1fr; }
}
/* Workout page: the workout's name as the page title, on one line (long names end in …) */
/* Name on the left (cut with … when long), the play button on the right */
.workout-head { display: flex; gap: 12px; align-items: center; justify-content: space-between; margin-bottom: 8px; }
.workout-title { font-size: 18px; font-weight: 650; min-width: 0; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* Spacing and sizing helpers for the page fragments (instead of inline styles) */
.m-0 { margin: 0; }
.mt-4 { margin-top: 4px; }
.mt-8 { margin-top: 8px; }
.mt-10 { margin-top: 10px; }
.mt-12 { margin-top: 12px; }
.mt-14 { margin-top: 14px; }
.mb-12 { margin-bottom: 12px; }
.my-10 { margin-top: 10px; margin-bottom: 10px; }
.lead { margin: 4px 0 8px; }
.spread { justify-content: space-between; }
.end { justify-content: flex-end; }
.grow { flex: 1; min-width: 180px; }
.w-90 { width: 90px; }
.w-110 { width: 110px; }
.as-written { text-transform: none; }
input.check { min-height: auto; }
.field-end { align-self: end; min-height: 40px; }