:root {
  color-scheme: light;
  --bg: #f4f6f9;
  --panel: #ffffff;
  --border: #e3e8ef;
  --text: #16202a;
  --muted: #6b7a8d;
  --accent: #3b82f6;
  --ok: #16a34a;
  --warn: #d97706;
  --bad: #dc2626;
  --code-bg: #f1f4f8;
  --input-bg: #ffffff;
  --btn-bg: #eef2f7;
  --grid: #e8edf3;
  --axis: #8b98a8;
  --zone1: #94a3b8;
  --zone2: #3b82f6;
  --zone3: #22c55e;
  --zone4: #eab308;
  --zone5: #f97316;
  --zone6: #ef4444;
  --zone7: #a855f7;
  --ok-bg: #e7f6ec;
  --ok-fg: #157347;
  --warn-bg: #fdf3e3;
  --warn-fg: #b45309;
  --bad-bg: #fdeaea;
  --bad-fg: #b02a2a;
  --accent-bg: #e8f1fe;
  --accent-contrast: #ffffff;
  --shadow: 0 1px 2px rgba(16, 24, 40, .06);
}

[data-theme="dark"] {
  color-scheme: dark;
  --bg: #101418;
  --panel: #171d24;
  --border: #26303b;
  --text: #e8edf3;
  --muted: #8fa0b3;
  --accent: #4da3ff;
  --ok: #3fbf7f;
  --warn: #e0a63c;
  --bad: #e05c5c;
  --code-bg: #0d1217;
  --input-bg: #0e1318;
  --btn-bg: #1d2833;
  --grid: #243040;
  --axis: #6d7f93;
  --zone1: #6b7a8d;
  --zone2: #4da3ff;
  --zone3: #3fbf7f;
  --zone4: #e0c23c;
  --zone5: #f0903c;
  --zone6: #e05c5c;
  --zone7: #b07cff;
  --ok-bg: #153223;
  --ok-fg: #9fe3bd;
  --warn-bg: #3a2c12;
  --warn-fg: #f0cf9a;
  --bad-bg: #3a1d1d;
  --bad-fg: #f3b3b3;
  --accent-bg: #14283f;
  --accent-contrast: #07121f;
  --shadow: none;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
code { background: var(--code-bg); padding: 1px 5px; border-radius: 5px; font-size: 12px; }

.topbar {
  display: flex; align-items: center; gap: 20px;
  padding: 12px 20px; background: var(--panel);
  border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 5;
}
.brand { font-weight: 700; color: var(--text); }
.topbar nav a { color: var(--muted); margin-right: 14px; }
.topbar nav a.on { color: var(--text); }
.icu { margin-left: auto; font-size: 13px; color: var(--muted); }
.icu.ok { color: var(--ok); }
.icu.warn { color: var(--warn); }
.settings-link { color: var(--muted); font-size: 13px; }
.settings-link.on { color: var(--text); }

main { max-width: 1100px; margin: 0 auto; padding: 20px; }
footer {
  max-width: 1100px; margin: 0 auto; padding: 20px;
  color: var(--muted); font-size: 12px; border-top: 1px solid var(--border);
}

h1 { font-size: 22px; margin: 0 0 6px; }
h2 { font-size: 17px; margin: 0 0 10px; }
h3 { font-size: 15px; margin: 18px 0 8px; }

.flash { padding: 10px 14px; border-radius: 8px; margin-bottom: 16px; }
.flash.ok { background: var(--ok-bg); color: var(--ok-fg); }
.flash.bad { background: var(--bad-bg); color: var(--bad-fg); }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 16px; }
.card, .panel { background: var(--panel); border: 1px solid var(--border); border-radius: 10px; padding: 14px 16px; }
.card .num { font-size: 22px; font-weight: 700; }
.card .label { color: var(--muted); font-size: 13px; }
.panel { margin-bottom: 16px; }

.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
.filters { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 0 0 14px; }
.filters label { color: var(--muted); display: inline-flex; gap: 6px; align-items: center; }

input, select, textarea, button {
  font: inherit; color: var(--text); background: var(--input-bg);
  border: 1px solid var(--border); border-radius: 7px; padding: 7px 10px;
}
.generate { margin: 0 0 14px; }
.generate summary { cursor: pointer; color: var(--muted); margin-bottom: 10px; }
.generate form { display: grid; gap: 10px; max-width: 760px; }
.generate textarea { resize: vertical; }
button { cursor: pointer; background: var(--btn-bg); }
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-contrast); font-weight: 600; }
label.check { display: inline-flex; gap: 6px; align-items: center; color: var(--muted); }

/* -- recovery tab: Polar Flow date controls ------------------------------ */
.polar-nav { position: relative; margin: 0 0 14px; }
.polar-nav-bar { display: flex; align-items: center; gap: 4px; margin-bottom: 8px; }
.polar-arrow,
.polar-picker-nav {
  width: 42px; height: 32px; padding: 0; line-height: 1;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 11px; color: var(--text); background: var(--panel);
  border: 1px solid var(--border); border-radius: 4px;
  box-shadow: 0 2px 3px rgba(0, 0, 0, .1);
}
.polar-arrow:hover,
.polar-picker-nav:hover { border-color: var(--accent); }
.polar-period-wrap { position: relative; display: inline-block; }
.polar-period {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 10px; font-size: 19px; font-weight: 400; line-height: 1.2;
  background: transparent; border-color: transparent; color: var(--text);
}
.polar-period:hover { background: var(--btn-bg); border-color: var(--border); }
.polar-caret {
  width: 0; height: 0; display: inline-block; margin-left: 2px;
  border-left: 5px solid transparent; border-right: 5px solid transparent;
  border-top: 6px solid currentColor; opacity: .75;
}
.polar-select { position: relative; display: inline-block; }
.polar-select-btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 10px; background: var(--panel);
}
.polar-menu {
  position: absolute; top: calc(100% + 4px); left: 0; z-index: 14;
  min-width: 130px; margin: 0; padding: 6px 0; list-style: none;
  background: var(--panel); border: 1px solid var(--border); border-radius: 4px;
  box-shadow: rgba(0, 0, 0, .4) 0 1px 2px;
}
.polar-menu[hidden] { display: none; }
.polar-menu li { margin: 0; }
.polar-menu button {
  display: block; width: 100%; padding: 7px 14px; text-align: left;
  background: transparent; border: 0; border-radius: 0;
}
.polar-menu button:hover { background: var(--btn-bg); }
.polar-menu button.on { color: #d10027; font-weight: 600; }
.polar-picker {
  position: absolute; top: calc(100% + 6px); left: 0; z-index: 15;
  width: 320px; padding: 8px; background: var(--panel);
  box-shadow: rgba(0, 0, 0, .4) 0 1px 2px; border-radius: 2px;
  font-size: 14px; color: var(--text);
}
.polar-picker[hidden] { display: none; }
.polar-picker-head { display: flex; align-items: center; gap: 4px; }
.polar-picker-nav { width: 42px; height: 30px; padding: 4px 10px; }
.polar-picker-switch {
  flex: 1; height: 30px; padding: 5px; text-align: center;
  background: transparent; border-color: transparent; color: var(--text); font-size: 14px;
}
.polar-picker-switch:hover { background: var(--btn-bg); border-color: transparent; }
.polar-picker-table { width: 100%; border-collapse: collapse; margin-top: 2px; }
.polar-picker-table th {
  padding: 5px 0; text-align: center; font-weight: 400; font-size: 13px; color: var(--text);
}
.polar-picker-table th.cw, .polar-picker-table td.cw {
  width: 34px; background: color-mix(in srgb, var(--muted) 18%, transparent);
  color: var(--muted); font-size: 12px; text-align: center;
}
.polar-picker-table td { padding: 0; }
.polar-picker-table td.day {
  padding: 5px 0; text-align: center; cursor: pointer; border-radius: 4px;
}
.polar-picker-table td.day:hover { background: var(--btn-bg); }
.polar-picker-table td.old, .polar-picker-table td.new { color: color-mix(in srgb, var(--muted) 75%, transparent); }
.polar-picker-table td.active { background: #d10027; color: #fff; font-weight: 600; }
.polar-picker-table td.today:not(.active) { box-shadow: inset 0 0 0 1px #d10027; }
.polar-picker-grid td { padding: 2px; text-align: center; }
.polar-month {
  display: block; padding: 9px 0; border-radius: 4px; cursor: pointer;
}
.polar-month:hover { background: var(--btn-bg); }
.polar-month.active { background: #d10027; color: #fff; font-weight: 600; }


table.list { width: 100%; border-collapse: collapse; }
table.list th, table.list td { text-align: left; padding: 7px 9px; border-bottom: 1px solid var(--border); vertical-align: top; }
table.list th { color: var(--muted); font-weight: 600; font-size: 13px; }
tr.dim td { opacity: .55; }

.badge {
  display: inline-block; padding: 1px 8px; border-radius: 999px;
  border: 1px solid var(--border); color: var(--muted); font-size: 12px; margin-right: 4px;
}
.badge.ok { color: var(--ok); border-color: var(--ok); }
.badge.warn { color: var(--warn); border-color: var(--warn); }

.muted { color: var(--muted); }
.small { font-size: 13px; }
.page-head { margin-bottom: 16px; }
.badges { margin: 4px 0 8px; }
.popular { list-style: none; margin: 8px 0 0; padding: 0; display: grid; gap: 4px; }
.popular li { display: flex; align-items: center; gap: 8px; }
.popular li > :last-child { margin-left: auto; }
.seen { margin-top: 8px; }
.seen summary { cursor: pointer; }
.pager { display: flex; gap: 14px; align-items: center; margin-top: 14px; color: var(--muted); }

.chart { width: 100%; height: auto; background: var(--code-bg); border: 1px solid var(--border); border-radius: 8px; }
.chart .grid { stroke: var(--grid); stroke-width: 1; }
.chart .axis { fill: var(--axis); font-size: 11px; }
.chart .area { fill: rgba(77, 163, 255, .22); }
.chart .line { fill: none; stroke: var(--accent); stroke-width: 2; }

/* Zwift-style workout profile cards */
.wchart { display: block; width: 100%; height: auto; background: var(--code-bg); border: 1px solid var(--border); border-radius: 8px; }
.wchart .wchart-bar { fill: var(--zone2); }
.wchart .wchart-bar.z1 { fill: var(--zone1); }
.wchart .wchart-bar.z2 { fill: var(--zone2); }
.wchart .wchart-bar.z3 { fill: var(--zone3); }
.wchart .wchart-bar.z4 { fill: var(--zone4); }
.wchart .wchart-bar.z5 { fill: var(--zone5); }
.wchart .wchart-bar.z6 { fill: var(--zone6); }
.wchart .wchart-bar.z7 { fill: var(--zone7); }
.wchart .wchart-bar.freeride { fill: var(--muted); opacity: .55; }
.wchart .wchart-grid { stroke: var(--grid); stroke-width: 1; }
.wchart .wchart-axis { fill: var(--axis); font-size: 10px; font-variant-numeric: tabular-nums; }
.wchart.mini { border-radius: 6px; }
.wthumb { margin-top: 6px; max-width: 240px; }

pre.code {
  background: var(--code-bg); border: 1px solid var(--border); border-radius: 8px;
  padding: 12px; overflow: auto; font-size: 12px; max-height: 420px;
}
.button { display: inline-block; padding: 8px 12px; border: 1px solid var(--border); border-radius: 7px; }

/* -- theming ------------------------------------------------------- */

.theme-toggle { margin-left: 8px; font-size: 12px; padding: 4px 10px; min-width: 58px; }

/* -- tabs ---------------------------------------------------------- */

.tabbar {
  display: flex; flex-wrap: wrap; gap: 4px;
  border-bottom: 1px solid var(--border); margin: 0 0 16px;
}
.tab {
  background: transparent; border: 1px solid transparent; border-bottom: 2px solid transparent;
  border-radius: 8px 8px 0 0; color: var(--muted); padding: 7px 12px;
}
.tab:hover { color: var(--text); border-color: transparent; }
.tab.on { color: var(--text); border-bottom-color: var(--accent); background: var(--panel); }
.tabpane { display: none; }
.tabpane.on { display: block; }

/* -- tiles / pills / meters ---------------------------------------- */

.tiles { display: grid; grid-template-columns: repeat(auto-fit, minmax(175px, 1fr)); gap: 12px; margin-bottom: 16px; }
.tile {
  background: var(--panel); border: 1px solid var(--border); border-radius: 10px;
  padding: 12px 14px; box-shadow: var(--shadow);
}
.tile .k { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.tile .value { font-size: 24px; font-weight: 700; margin: 4px 0 2px; }
.tile .value .unit { font-size: 13px; font-weight: 500; color: var(--muted); margin-left: 3px; }
.tile .sub { color: var(--muted); font-size: 12px; margin-top: 4px; }

.pill {
  display: inline-block; padding: 2px 9px; border-radius: 999px; font-size: 12px;
  border: 1px solid var(--border); color: var(--muted); background: var(--code-bg);
}
.pill.ok { color: var(--ok-fg); background: var(--ok-bg); border-color: transparent; }
.pill.warn { color: var(--warn-fg); background: var(--warn-bg); border-color: transparent; }
.pill.bad { color: var(--bad-fg); background: var(--bad-bg); border-color: transparent; }
.pill.accent { color: var(--accent); background: var(--accent-bg); border-color: transparent; }
.pill.muted { color: var(--muted); }

.meter {
  height: 8px; border-radius: 999px; background: var(--code-bg);
  border: 1px solid var(--border); overflow: hidden; margin: 6px 0 2px;
}
.meter > i { display: block; height: 100%; background: var(--accent); }
.meter.ok > i { background: var(--ok); }
.meter.warn > i { background: var(--warn); }
.meter.bad > i { background: var(--bad); }

.collapse summary { cursor: pointer; list-style: none; display: flex; align-items: center; gap: 8px; }
.collapse summary::-webkit-details-marker { display: none; }
.collapse summary::before { content: "▸"; color: var(--muted); font-size: 12px; }
.collapse[open] summary::before { content: "▾"; }
.collapse summary h2 { margin: 0; }
.collapse[open] summary { margin-bottom: 10px; }

.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid2 > :only-child { grid-column: 1 / -1; }
@media (max-width: 800px) { .grid2 { grid-template-columns: 1fr; } }

.legend { display: flex; gap: 14px; flex-wrap: wrap; color: var(--muted); font-size: 12px; margin: 6px 0 0; }
.legend i { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 5px; vertical-align: middle; }

.kv { display: grid; grid-template-columns: 160px 1fr; gap: 6px 12px; font-size: 14px; margin: 0; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; }

.advice {
  border-left: 3px solid var(--accent); background: var(--code-bg);
  border-radius: 6px; padding: 8px 12px;
}

:root {
  --polar-red: #e3001b;
  --polar-cyan: #05cddc;
  --polar-carry: #c9d0d9;
}

[data-theme="dark"] {
  --polar-red: #ff4d5e;
  --polar-cyan: #35d6e2;
  --polar-carry: #3d4652;
}

/* -- chat (OpenCode proxy) ---------------------------------------------- */
.chat-shell { display: flex; flex-direction: column; gap: 10px; }
.chat-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.chat-spacer { flex: 1; }
.chat-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--muted); }
.chat-dot.ok { background: var(--ok); }
.chat-dot.bad { background: var(--bad); }
.chat-log {
  display: flex; flex-direction: column; gap: 10px;
  min-height: 320px; max-height: 62vh; overflow-y: auto;
  padding: 14px; background: var(--panel); border: 1px solid var(--border);
  border-radius: 10px; box-shadow: var(--shadow);
}
.chat-empty { color: var(--muted); margin: auto; text-align: center; max-width: 46ch; }
.chat-msg { display: flex; }
.chat-msg.user { justify-content: flex-end; }
.chat-bubble {
  max-width: 78%; padding: 8px 12px; border-radius: 12px;
  background: var(--code-bg); white-space: pre-wrap; overflow-wrap: anywhere;
}
.chat-msg.user .chat-bubble { background: var(--accent); color: var(--accent-contrast); }
.chat-reasoning {
  border: 1px dashed var(--border); border-radius: 8px; padding: 6px 10px;
  color: var(--muted); font-size: 13px;
}
.chat-reasoning summary { cursor: pointer; }
.chat-reasoning pre { margin: 6px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.chat-tool { border: 1px solid var(--border); border-radius: 8px; padding: 6px 10px; background: var(--panel); }
.chat-tool summary { cursor: pointer; display: flex; align-items: center; gap: 8px; }
.chat-tool-name { font-weight: 600; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }
.chat-tool-body { margin-top: 6px; }
.chat-tool-label { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: .04em; margin-top: 6px; }
.chat-tool pre { margin: 6px 0 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.chat-idle { color: var(--muted); font-size: 12px; text-align: center; }
.chat-idle.bad { color: var(--bad); }
.chat-perm {
  border: 1px solid var(--warn); border-radius: 8px; padding: 10px 12px;
  display: flex; flex-direction: column; gap: 8px;
}
.chat-perm .row { gap: 8px; }
.chat-perm-title { font-weight: 600; }
.chat-perm button.danger { color: var(--bad); }
.chat-compose { display: flex; gap: 10px; align-items: flex-end; }
.chat-compose textarea { flex: 1; resize: vertical; min-height: 44px; }
.chat-compose-actions { display: flex; gap: 8px; }

/* -- auth ---------------------------------------------------------------- */
.auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 24px; }
.auth-card { width: 100%; max-width: 430px; padding: 26px 28px; }
.auth-card h1 { margin: 0 0 4px; font-size: 22px; }
.auth-card .lede { margin: 0 0 18px; color: var(--muted); font-size: 13px; }
.auth-card form { display: grid; gap: 12px; }
.auth-card label { display: grid; gap: 5px; color: var(--muted); font-size: 13px; }
.auth-card input { width: 100%; box-sizing: border-box; }
.auth-card .actions { display: flex; justify-content: flex-end; }
.auth-card .hint { color: var(--muted); font-size: 12px; margin: 0; }
.who { color: var(--muted); font-size: 13px; }
.who.warn { color: var(--warn); }
.logout { display: inline; }
.logout button { padding: 4px 10px; font-size: 12px; }
.keys { list-style: none; margin: 10px 0; padding: 0; display: grid; gap: 8px; }
.keys li { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; border: 1px solid var(--border); border-radius: 8px; padding: 8px 10px; }
.keys .key-name { font-weight: 600; }

/* -- settings page ------------------------------------------------------- */
.conns { list-style: none; margin: 0; padding: 0; }
.conns > li { padding: 12px 0; border-top: 1px solid var(--border); }
.conns > li:first-child { padding-top: 0; border-top: 0; }
.conns > li:last-child { padding-bottom: 0; }
.conn-row { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.conn-row .conn-name { font-weight: 600; }
.conn-row .conn-actions { margin-left: auto; display: inline-flex; gap: 8px; align-items: center; }
.conns li > p { margin: 6px 0 0; }
.edit-creds { margin-top: 8px; }
.edit-creds summary { cursor: pointer; color: var(--muted); font-size: 13px; }
.edit-creds[open] summary { margin-bottom: 10px; }
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(165px, 1fr)); gap: 12px 14px; align-items: end; }
.form-grid > label { display: grid; gap: 5px; color: var(--muted); font-size: 13px; }
.form-grid input { width: 100%; box-sizing: border-box; }
.form-actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 8px; }
.cred-form { margin-top: 10px; }
.stack-form { display: grid; gap: 12px; max-width: 360px; }
.stack-form > label { display: grid; gap: 5px; color: var(--muted); font-size: 13px; }
.stack-form input { width: 100%; box-sizing: border-box; }
label.check.wide { display: flex; align-items: flex-start; }
label.check.wide input { margin-top: 3px; flex: none; }
.key-create { display: flex; gap: 8px; margin-top: 14px; }
.key-create input { flex: 1 1 200px; min-width: 0; }
.keys li .key-revoke, .keys li .pill { margin-left: auto; }
.mcp-note { margin: 16px 0 0; padding-top: 12px; border-top: 1px solid var(--border); }
button.danger { color: var(--bad); }