/* =====================================================================
   ChuckleMore — self-management dashboard
   Design system. Self-contained, no external requests.
   Fonts: Unbounded (display) + Plus Jakarta Sans (body) — local, see fonts.css.
   Colour: warm, gently-playful, clinician-credible. Charts read tokens so
   light/dark both work. dataviz-validated categorical palette.
   ===================================================================== */

/* ------------------------------------------------ TOKENS (light default) */
:root {
  /* type */
  --font-display: 'Unbounded', system-ui, sans-serif;
  --font-body: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --step--1: clamp(0.78rem, 0.75rem + 0.15vw, 0.86rem);
  --step-0:  clamp(0.95rem, 0.92rem + 0.2vw, 1.02rem);
  --step-1:  clamp(1.12rem, 1.05rem + 0.4vw, 1.3rem);
  --step-2:  clamp(1.4rem, 1.25rem + 0.8vw, 1.85rem);
  --step-3:  clamp(1.9rem, 1.6rem + 1.6vw, 2.9rem);
  --hero:    clamp(3.2rem, 2.4rem + 3.4vw, 4.4rem);

  /* spacing / shape */
  --sp-1: 0.375rem; --sp-2: 0.625rem; --sp-3: 1rem; --sp-4: 1.5rem;
  --sp-5: 2.25rem; --sp-6: 3.25rem;
  --radius: 20px; --radius-sm: 12px; --radius-pill: 999px;
  --maxw: 1120px;

  /* surfaces & ink */
  --paper: #f7f4ee;
  --paper-2: #fbf9f4;
  --surface: #ffffff;
  --ink: #221f1a;
  --ink-2: #5c574e;
  --ink-muted: #6f6960;   /* clears 4.5:1 on white for small text */
  --line: #ece6da;
  --baseline: #d8d1c4;
  --border: rgba(34, 31, 26, 0.10);
  --track: #e8eaf6;
  --shadow: 0 1px 2px rgba(34,31,26,.05), 0 14px 30px -18px rgba(34,31,26,.22);
  --shadow-lift: 0 2px 4px rgba(34,31,26,.06), 0 22px 46px -20px rgba(34,31,26,.30);

  /* brand */
  --accent: #f4b23e;         /* honey — the "chuckle" */
  --accent-deep: #d98f22;
  --accent-ink: #935e10;     /* accent legible as text */
  --accent-soft: #fbeacb;

  /* chart categorical — the three "levers" (dataviz-validated, light) */
  --series-sleep:   #3b60e4;
  --series-move:    #e8720c;
  --series-recover: #0e9b8a;

  /* sleep-stage ordinal blues + a warm "awake" */
  --stage-deep:  #1c3fb7;
  --stage-rem:   #4c6ef5;
  --stage-light: #8299f0;
  --stage-awake: #e8965b;

  /* movement intensity — sequential effort ramp (ordered) */
  --intensity-light: #f0c088;
  --intensity-mod:   #ec8b3c;
  --intensity-vig:   #c7500c;

  --good: #0f7d4a;
  --warn: #c77a12;

  color-scheme: light;
}

/* ------------------------------------------------ DARK (auto + override) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #100e0a;
    --paper-2: #16130d;
    --surface: #1a1712;
    --ink: #f6f4ef;
    --ink-2: #c4bfb3;
    --ink-muted: #948d80;
    --line: #2a2620;
    --baseline: #38332b;
    --border: rgba(246,244,239,0.12);
    --track: #262a3a;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 16px 34px -18px rgba(0,0,0,.7);
    --shadow-lift: 0 2px 6px rgba(0,0,0,.5), 0 26px 52px -20px rgba(0,0,0,.8);
    --accent-ink: #f4b23e;
    --accent-soft: #3a2f19;

    --series-sleep:   #6d8bff;
    --series-move:    #d46a11;
    --series-recover: #12a48d;
    --stage-deep:  #2e4cc4;
    --stage-rem:   #5e7bf0;
    --stage-light: #8aa0ff;
    --stage-awake: #e8965b;
    --intensity-light: #e8b06b;
    --intensity-mod:   #d77e2a;
    --intensity-vig:   #c2560f;
    --good: #35c07d;
    --warn: #e6a53a;
    color-scheme: dark;
  }
}
/* explicit dark toggle wins regardless of OS setting */
:root[data-theme="dark"] {
  --paper: #100e0a; --paper-2: #16130d; --surface: #1a1712;
  --ink: #f6f4ef; --ink-2: #c4bfb3; --ink-muted: #948d80;
  --line: #2a2620; --baseline: #38332b; --border: rgba(246,244,239,0.12);
  --track: #262a3a;
  --shadow: 0 1px 2px rgba(0,0,0,.4), 0 16px 34px -18px rgba(0,0,0,.7);
  --shadow-lift: 0 2px 6px rgba(0,0,0,.5), 0 26px 52px -20px rgba(0,0,0,.8);
  --accent-ink: #f4b23e; --accent-soft: #3a2f19;
  --series-sleep: #6d8bff; --series-move: #d46a11; --series-recover: #12a48d;
  --stage-deep: #2e4cc4; --stage-rem: #5e7bf0; --stage-light: #8aa0ff; --stage-awake: #e8965b;
  --intensity-light: #e8b06b; --intensity-mod: #d77e2a; --intensity-vig: #c2560f;
  --good: #35c07d; --warn: #e6a53a;
  color-scheme: dark;
}

/* ---------------------------------------------------------------- RESET */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.55;
  color: var(--ink);
  background: var(--paper);
  background-image:
    radial-gradient(circle at 1px 1px, color-mix(in srgb, var(--ink) 5%, transparent) 1px, transparent 0);
  background-size: 22px 22px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { margin: 0; line-height: 1.15; }
p { margin: 0; }
a { color: var(--series-sleep); }
img, svg { max-width: 100%; }
:focus-visible {
  outline: 3px solid var(--accent-deep);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 100;
  background: var(--ink); color: var(--paper); padding: .6rem 1rem;
  border-radius: 0 0 var(--radius-sm) 0; font-weight: 700;
}
.skip-link:focus { left: 0; }

/* ------------------------------------------------------ MANDATORY BANNER */
.banner {
  position: sticky; top: 0; z-index: 40;
  background: var(--accent);
  color: #241a05;
  border-bottom: 2px solid var(--accent-deep);
  box-shadow: 0 6px 18px -10px rgba(120,80,10,.5);
}
.banner__inner {
  max-width: var(--maxw); margin: 0 auto;
  display: flex; align-items: center; gap: var(--sp-2);
  padding: .5rem var(--sp-3);
}
.banner__badge {
  font-size: 1.1rem; line-height: 1; flex: none;
  animation: badgespin 6s linear infinite;
}
.banner__text {
  font-size: var(--step--1); font-weight: 500;
  letter-spacing: .01em;
}
.banner__text strong { font-weight: 800; }
@keyframes badgespin { to { transform: rotate(360deg); } }

/* ------------------------------------------------------------- MASTHEAD */
.masthead {
  max-width: var(--maxw); margin: 0 auto;
  padding: var(--sp-4) var(--sp-3) var(--sp-2);
}
.masthead__inner {
  display: flex; align-items: center; flex-wrap: wrap; gap: var(--sp-2) var(--sp-3);
}
.brand { display: flex; align-items: center; gap: .6rem; }
.brand__mark { display: inline-flex; }
.brand__smile { stroke: var(--accent-deep); }
.brand__eye { fill: var(--ink); }
.brand__wordmark {
  font-family: var(--font-display); font-weight: 800;
  font-size: var(--step-2); letter-spacing: -.01em; color: var(--ink);
}
.masthead__tagline {
  font-family: var(--font-display); font-weight: 500;
  color: var(--ink-2); font-size: var(--step-0);
  margin-right: auto;
}
.masthead__tools { display: flex; align-items: center; gap: var(--sp-2); }
.chip {
  font-size: var(--step--1); font-weight: 700; letter-spacing: .02em;
  padding: .3rem .7rem; border-radius: var(--radius-pill);
  background: var(--accent-soft); color: var(--accent-ink);
  border: 1px solid color-mix(in srgb, var(--accent) 40%, transparent);
  white-space: nowrap;
}
.iconbtn {
  width: 42px; height: 42px; border-radius: var(--radius-pill);
  border: 1px solid var(--border); background: var(--surface);
  color: var(--ink); cursor: pointer; font-size: 1.15rem;
  display: inline-flex; align-items: center; justify-content: center;
  transition: transform .16s ease, background .2s ease, box-shadow .2s ease;
}
.iconbtn:hover { transform: translateY(-1px); box-shadow: var(--shadow); }
.iconbtn:active { transform: translateY(0); }
.masthead__pending {
  margin-top: var(--sp-2); font-size: var(--step--1); color: var(--ink-2);
  border-left: 3px solid var(--accent); padding: .25rem .7rem;
  background: color-mix(in srgb, var(--accent) 9%, transparent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

/* ------------------------------------------------------------- LAYOUT */
.wrap {
  max-width: var(--maxw); margin: 0 auto;
  padding: var(--sp-3) var(--sp-3) var(--sp-6);
  display: grid; gap: var(--sp-5);
}
.panel {
  background: var(--paper-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--sp-4);
  position: relative; overflow: hidden;
}
.panel::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 4px;
}
.panel--sleep::before { background: linear-gradient(90deg, var(--series-sleep), color-mix(in srgb, var(--series-sleep) 55%, var(--accent))); }
.panel--move::before  { background: linear-gradient(90deg, var(--series-move), var(--accent)); }
.panel--recover::before { background: var(--baseline); }

.panel__head { margin-bottom: var(--sp-4); max-width: 62ch; }
.panel__kicker {
  display: inline-block; font-size: var(--step--1); font-weight: 800;
  letter-spacing: .08em; text-transform: uppercase;
  color: var(--accent-ink); margin-bottom: .35rem;
}
.panel__kicker--quiet { color: var(--ink-muted); }
.panel__title {
  font-family: var(--font-display); font-weight: 700;
  font-size: var(--step-2); color: var(--ink);
}
.panel__title--quiet { font-weight: 500; color: var(--ink-2); }
.panel__lede { margin-top: .5rem; color: var(--ink-2); font-size: var(--step-0); }

/* --------------------------------------------------------------- HERO */
.hero {
  display: grid; grid-template-columns: minmax(0, 260px) minmax(0, 1fr);
  gap: var(--sp-4); align-items: center; margin-bottom: var(--sp-4);
}
.hero__dial {
  text-align: center; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius);
  padding: var(--sp-4) var(--sp-3) var(--sp-3); box-shadow: var(--shadow);
}
.hero__gauge { max-width: 240px; margin: 0 auto -14px; aspect-ratio: 220 / 150; }
.hero__figure { display: flex; align-items: baseline; justify-content: center; gap: .3rem; }
.hero__number {
  font-family: var(--font-body); font-weight: 800;
  font-size: var(--hero); color: var(--series-sleep);
  line-height: 1; letter-spacing: -.02em;
}
.hero__scale { color: var(--ink-muted); font-weight: 700; font-size: var(--step-1); }
.hero__label {
  font-family: var(--font-display); font-weight: 500;
  color: var(--ink); margin-top: .3rem; font-size: var(--step-1);
}
.hero__sub { color: var(--ink-muted); font-size: var(--step--1); margin-top: .25rem; }
.hero__trend { min-width: 0; }

/* --------------------------------------------------------------- CARDS */
.grid { display: grid; gap: var(--sp-3); }
.grid--2 { grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.panel .grid + .card, .panel .card + .grid, .panel .grid + .grid { margin-top: var(--sp-3); }

.card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: var(--sp-3);
  box-shadow: var(--shadow); min-width: 0;
  transition: transform .18s ease, box-shadow .22s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-lift); }
.card--quiet { box-shadow: none; background: transparent; }
.card--quiet:hover { transform: none; box-shadow: none; }
.card__caption { display: flex; align-items: baseline; justify-content: space-between; gap: var(--sp-2); margin-bottom: .4rem; flex-wrap: wrap; }
.card__caption--split { align-items: flex-start; }
.card__title { font-size: var(--step-0); font-weight: 700; color: var(--ink); }
.card__meta { font-size: var(--step--1); color: var(--ink-muted); }
.card__stat { font-size: var(--step-1); font-weight: 800; color: var(--ink); font-variant-numeric: tabular-nums; }
.card__stat--quiet { font-weight: 600; color: var(--ink-2); }
.card__stat.is-under { color: var(--warn); }
.card__note { margin-top: .55rem; font-size: var(--step--1); color: var(--ink-2); }
.card__note--fine { color: var(--ink-muted); font-style: italic; }
.card__note em { color: var(--ink); font-style: normal; font-weight: 600; }

/* target controls (personal goals) */
.target-ctl {
  display: inline-flex; align-items: center; gap: .4rem;
  font-size: var(--step--1); color: var(--ink-2); margin: .2rem 0 .5rem;
}
.target-ctl input {
  width: 4.4rem; font: inherit; font-weight: 700; color: var(--ink);
  padding: .25rem .5rem; border-radius: var(--radius-sm);
  border: 1px solid var(--border); background: var(--paper-2);
  font-variant-numeric: tabular-nums;
}

/* streak */
.streakbox {
  text-align: center; background: color-mix(in srgb, var(--series-move) 12%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--series-move) 30%, transparent);
  border-radius: var(--radius-sm); padding: .4rem .8rem; flex: none;
}
.streakbox__num {
  display: block; font-family: var(--font-body); font-weight: 800;
  font-size: var(--step-2); color: var(--series-move); line-height: 1;
  font-variant-numeric: tabular-nums;
}
.streakbox__label { font-size: 0.66rem; color: var(--ink-2); line-height: 1.15; display: block; margin-top: .1rem; }
.streak-wrap { margin-top: .5rem; }
.streakstrip { display: flex; flex-wrap: wrap; gap: 4px; }
.streakstrip__dot {
  width: 12px; height: 12px; border-radius: 4px;
  background: var(--track); border: 1px solid var(--border);
}
.streakstrip__dot.is-hit {
  background: var(--series-move); border-color: transparent;
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--series-move) 22%, transparent);
}

/* meter */
.meter {
  height: 12px; border-radius: var(--radius-pill); background: var(--track);
  overflow: hidden; margin: .4rem 0;
}
.meter__fill {
  display: block; height: 100%; width: 0; border-radius: inherit;
  background: var(--series-move);
  transition: width .8s cubic-bezier(.22,.61,.36,1);
}
.meter__fill[data-level="steady"] { background: var(--good); }
.meter__fill[data-level="sporadic"] { background: var(--warn); }
[data-level] { }
#consistency-stat[data-level="steady"] { color: var(--good); }
#consistency-stat[data-level="sporadic"] { color: var(--warn); }

/* --------------------------------------------------------------- LEGEND */
.legend { display: flex; flex-wrap: wrap; gap: .35rem .9rem; margin-top: .5rem; }
.legend__item { display: inline-flex; align-items: center; gap: .4rem; font-size: var(--step--1); color: var(--ink-2); }
.legend__swatch { width: 12px; height: 12px; border-radius: 3px; flex: none; }

/* --------------------------------------------------------------- CHARTS */
/* reserve exact space before JS inserts the SVG (aspect matches each chart's
   viewBox) so chart insertion causes no layout shift (CLS) */
.plot { position: relative; margin-top: .3rem; aspect-ratio: 720 / 250; }
#chart-stages, #chart-intensity { aspect-ratio: 720 / 200; }
.chart { width: 100%; }
.chart__svg, .gauge__svg { width: 100%; height: auto; display: block; overflow: visible; }
.axis-grid { stroke: var(--line); stroke-width: 1; }   /* SVG gridlines */
.axis-tick { fill: var(--ink-muted); font-size: 12px; font-family: var(--font-body); font-variant-numeric: tabular-nums; }
.line { fill: none; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.area { opacity: 0.10; stroke: none; }
.end-dot, .focus-dot { stroke: var(--surface); stroke-width: 2; }
.end-label { fill: var(--ink); font-size: 12px; font-weight: 700; font-family: var(--font-body); }
.crosshair { stroke: var(--baseline); stroke-width: 1; pointer-events: none; }
.target-line { stroke: var(--accent-deep); stroke-width: 1.5; stroke-dasharray: 5 4; opacity: .85; }
.target-label { fill: var(--accent-ink); font-size: 11px; font-weight: 700; font-family: var(--font-body); }
.chart__svg .hit { cursor: crosshair; }

.chart__svg, .chart--stack .chart__svg { touch-action: pan-y; }

.chart__tip {
  position: absolute; top: -6px; transform: translate(-50%, -100%);
  background: var(--ink); color: var(--paper);
  padding: .4rem .6rem; border-radius: var(--radius-sm);
  font-size: var(--step--1); line-height: 1.3; pointer-events: none;
  white-space: nowrap; box-shadow: var(--shadow-lift); z-index: 5;
  display: flex; flex-direction: column; gap: 1px;
}
.chart__tip[hidden] { display: none; }
.chart__tip-date { font-weight: 800; }
.chart__tip-val { opacity: .9; }

/* gauge */
.gauge__track { fill: none; stroke-width: 14; stroke-linecap: round; }
.gauge__fill { fill: none; stroke-width: 14; stroke-linecap: round; }

/* sparkline */
.spark { width: 120px; height: 34px; }
.spark__line { fill: none; stroke-width: 2; stroke-linecap: round; }

/* --------------------------------------------------------- DATA TABLE */
.datatable {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: var(--sp-2) var(--sp-3);
}
.datatable > summary {
  cursor: pointer; font-weight: 700; color: var(--ink-2);
  padding: .4rem 0; font-size: var(--step-0);
}
.datatable__scroll { overflow-x: auto; margin-top: .5rem; }
.datatable table { border-collapse: collapse; width: 100%; font-size: var(--step--1); }
.datatable caption { text-align: left; color: var(--ink-muted); padding-bottom: .5rem; font-size: var(--step--1); }
.datatable th, .datatable td { padding: .4rem .6rem; text-align: right; white-space: nowrap; border-bottom: 1px solid var(--line); font-variant-numeric: tabular-nums; }
.datatable th:first-child, .datatable td:first-child { text-align: left; font-variant-numeric: normal; }
.datatable thead th { color: var(--ink-2); position: sticky; top: 0; background: var(--surface); }

/* --------------------------------------------------------------- FOOTER */
.foot { border-top: 1px solid var(--border); background: var(--paper-2); }
.foot__inner { max-width: var(--maxw); margin: 0 auto; padding: var(--sp-4) var(--sp-3); }
.foot__baseline { color: var(--ink); font-size: var(--step-0); max-width: 68ch; }
.foot__fine { margin-top: .6rem; color: var(--ink-muted); font-size: var(--step--1); letter-spacing: .01em; }
.error { padding: var(--sp-4); color: var(--warn); font-weight: 600; }

/* --------------------------------------------------------------- MOTION */
/* transform-only entrance: content is always fully opaque (never hidden from
   contrast checks) and transforms don't shift layout, so CLS stays ~0 */
.reveal { transform: translateY(14px); }
.reveal.is-in { transform: none; transition: transform .6s cubic-bezier(.22,.61,.36,1); }

@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal.is-in { opacity: 1; transform: none; transition: none; }
  .banner__badge { animation: none; }
  .meter__fill { transition: none; }
  * { scroll-behavior: auto !important; }
}

/* ------------------------------------------------------------ RESPONSIVE */
@media (max-width: 860px) {
  .grid--2, .grid--3 { grid-template-columns: 1fr; }
  .hero { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  :root { --radius: 16px; }
  .wrap { padding-left: var(--sp-2); padding-right: var(--sp-2); }
  .panel { padding: var(--sp-3); }
  .masthead { padding-left: var(--sp-2); padding-right: var(--sp-2); }
  .masthead__tagline { flex-basis: 100%; margin: 0; order: 5; }
  .banner__inner { align-items: flex-start; }
}