/*
 * HoldSteady — shared stylesheet
 *
 * Loaded after Pico on every page. Layers a flatter visual system on top
 * of Pico's defaults: white surfaces, hairline borders, no drop shadows,
 * status colour as signal.
 *
 * Page-level inline <style> blocks should be empty of anything defined
 * here. If a rule is genuinely page-specific (e.g. .hs-layout on /new),
 * it can stay inline — but err on the side of consolidating.
 */

:root {
  /* Surfaces & text */
  --hs-bg-page:        #fff;
  --hs-bg-muted:       #f8f9fa;        /* demo-chrome strip only; not a card bg */
  --hs-fg-1:           #11191f;
  --hs-fg-2:           #525860;
  --hs-fg-3:           #888c91;
  --hs-border:         #cfd5da;
  --hs-border-muted:   #e1e6ea;
  --hs-accent:         #0172ad;
  --hs-accent-hover:   #015887;

  /* Status palette — text/border tier */
  --hs-status-ok:             #2d6a4f;
  --hs-status-watch:          #b5a300;
  --hs-status-stretched:      #d4621a;
  --hs-status-broken:         #b00020;
  --hs-status-unknown:        #666;
  --hs-status-unknown-border: #888;

  /* Status palette — badge backgrounds (kept as signal) */
  --hs-status-ok-bg:        #d4edda;
  --hs-status-watch-bg:     #fff9c4;
  --hs-status-stretched-bg: #ffe0cc;
  --hs-status-broken-bg:    #fdd;
  --hs-status-unknown-bg:   #eee;

  /* Highlight tints used by hs-thesis-highlights */
  --hs-hl-ok-bg:        rgba(45, 106, 79, 0.12);
  --hs-hl-watch-bg:     rgba(181, 163, 0, 0.18);
  --hs-hl-stretched-bg: rgba(212, 98, 26, 0.16);
  --hs-hl-broken-bg:    rgba(176, 0, 32, 0.14);
  --hs-hl-unknown-bg:   rgba(102, 102, 102, 0.12);

  --hs-font: system-ui, -apple-system, "Segoe UI", Roboto, Oxygen, Ubuntu,
             Cantarell, Helvetica, Arial, "Helvetica Neue", sans-serif;
  --hs-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* Pico overrides — flatten chrome. */
  --pico-font-family: var(--hs-font);
  --pico-card-background-color: var(--hs-bg-page);
  --pico-card-sectioning-background-color: var(--hs-bg-page);
  --pico-card-box-shadow: none;
}

/* Reserve the header's vertical space before the <hs-page-header>
   component upgrades, so the page doesn't jump when the module loads. */
hs-page-header:not(:defined) {
  display: block;
  height: 44px;
  border-bottom: 1px solid var(--hs-border-muted);
}

/* ---------- Page header (sticky) ----------
   The same .page-header markup is used on every page. The four authed
   pages (/, /theses/, /theses/{id}, /new) share an identical inner
   layout: brand + New-thesis CTA on the left, Your-theses + Log-out
   on the right. Unauthed pages (/login, /confirm_error.html) keep the
   same chrome but render only the brand. */
.page-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: var(--hs-bg-page);
  border-bottom: 1px solid var(--hs-border-muted);
}
.page-header .row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 44px;
}
.page-header-left {
  display: flex;
  align-items: center;
  gap: 18px;
}
.page-header-right {
  display: flex;
  align-items: center;
  gap: 18px;
  font-size: 13.5px;
}
.brand {
  font-weight: 700;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--hs-fg-1);
  text-decoration: none;
}
.brand:hover { color: var(--hs-fg-1); }
.page-header a:not(.brand):not(.hs-cta) {
  color: var(--hs-fg-2);
  text-decoration: none;
}
.page-header a:not(.brand):not(.hs-cta):hover { color: var(--hs-fg-1); }
.page-header a.hs-cta {
  display: inline-block;
  padding: 4px 10px;
  background: var(--hs-accent);
  color: #fff;
  border: 1px solid var(--hs-accent);
  border-radius: 4px;
  font-weight: 500;
  font-size: 13px;
  text-decoration: none;
}
.page-header a.hs-cta:hover {
  background: var(--hs-accent-hover);
  border-color: var(--hs-accent-hover);
  color: #fff;
}

/* ---------- Flat surfaces in <main> ----------
   Pico styles <article> as a card with a fill, a sectioning-band tint
   on <header>/<footer>, and a box-shadow. We want flat: hairline
   border, transparent fill, no shadow. The .hs-assumption divs follow
   the same rule — the only filled surfaces in <main> are the status
   badges and the row tints, which carry meaning. */
main article {
  background: transparent;
  box-shadow: none;
  border: 1px solid var(--hs-border-muted);
  border-radius: 4px;
}
main article > header,
main article > footer {
  background: transparent;
  border-bottom: 1px solid var(--hs-border-muted);
}
main article > footer {
  border-bottom: none;
  border-top: 1px solid var(--hs-border-muted);
}
.hs-assumption { background: transparent; }

/* ---------- Mono ticker badge ---------- */
.hs-ticker-badge {
  display: inline-block;
  font-family: var(--hs-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--hs-fg-1);
  color: #fff;
  padding: 2px 6px;
  border-radius: 3px;
  vertical-align: middle;
}

/* ---------- Status text colours ---------- */
.hs-status-ok        { color: var(--hs-status-ok);        font-weight: 600; }
.hs-status-watch     { color: var(--hs-status-watch);     font-weight: 600; }
.hs-status-stretched { color: var(--hs-status-stretched); font-weight: 600; }
.hs-status-broken    { color: var(--hs-status-broken);    font-weight: 600; }
.hs-status-unknown   { color: var(--hs-status-unknown);   font-weight: 600; }

/* ---------- Status badges ---------- */
.hs-status-badge {
  display: inline-block;
  padding: 0.15em 0.5em;
  border-radius: 4px;
  font-size: 0.85em;
}
.hs-status-badge.hs-status-ok        { background: var(--hs-status-ok-bg); }
.hs-status-badge.hs-status-watch     { background: var(--hs-status-watch-bg); }
.hs-status-badge.hs-status-stretched { background: var(--hs-status-stretched-bg); }
.hs-status-badge.hs-status-broken    { background: var(--hs-status-broken-bg); }
.hs-status-badge.hs-status-unknown   { background: var(--hs-status-unknown-bg); }

/* ---------- Assumption cards ---------- */
.hs-assumption {
  background: var(--hs-bg-page);
  border: 1px solid var(--hs-border-muted);
  border-left: 4px solid var(--hs-status-unknown-border);
  border-radius: 0 4px 4px 0;
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
}
.hs-assumption.hs-border-ok        { border-left-color: var(--hs-status-ok); }
.hs-assumption.hs-border-watch     { border-left-color: var(--hs-status-watch); }
.hs-assumption.hs-border-stretched { border-left-color: var(--hs-status-stretched); }
.hs-assumption.hs-border-broken    { border-left-color: var(--hs-status-broken); }
.hs-assumption.hs-border-unknown   { border-left-color: var(--hs-status-unknown); }

.hs-border-ok        { border-left-color: var(--hs-status-ok); }
.hs-border-watch     { border-left-color: var(--hs-status-watch); }
.hs-border-stretched { border-left-color: var(--hs-status-stretched); }
.hs-border-broken    { border-left-color: var(--hs-status-broken); }
.hs-border-unknown   { border-left-color: var(--hs-status-unknown); }

.hs-assumption-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.hs-claim {
  font-style: italic;
  color: var(--hs-fg-2);
}
.hs-metric-label {
  font-size: 0.85em;
  color: var(--hs-fg-2);
}

/* Tracked reporting-period chip (ADR-0010): a muted metadata tag shown
   next to the metric label and in the assumption tooltip. */
.hs-period-chip {
  display: inline-block;
  font-family: var(--hs-mono);
  font-size: 0.7em;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--hs-fg-2);
  background: var(--hs-bg-muted);
  border: 1px solid var(--hs-border-muted);
  padding: 0.1em 0.4em;
  border-radius: 3px;
  vertical-align: middle;
  white-space: nowrap;
}
.hs-metric-value {
  font-size: 1.25em;
  font-weight: 600;
  margin: 0.25rem 0;
}
.hs-threshold {
  font-size: 0.85em;
}

/* Footnote-style note inside an assumption card. Hairline left bar
   instead of a grey fill — no neutral tint. */
.hs-note {
  font-size: 0.85em;
  color: var(--hs-fg-2);
  font-style: italic;
  padding: 0.5rem 1rem;
  margin-bottom: 0.75rem;
  border-left: 3px solid var(--hs-border);
}

/* ---------- Section heading ---------- */
.hs-section-heading {
  font-size: 0.9em;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--hs-fg-3);
  margin-bottom: 0.75rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--hs-border-muted);
  font-weight: 600;
}

/* ---------- Thesis body text + meta ---------- */
.hs-thesis-text {
  white-space: pre-wrap;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}
.hs-thesis-footnote {
  font-size: 0.8em;
  color: var(--hs-fg-3);
  margin: -0.5rem 0 1.5rem 0;
  font-style: italic;
}
.hs-highlight-summary {
  font-size: 0.95em;
  color: var(--hs-fg-2);
  margin: 0.25rem 0 0.75rem 0;
}
.hs-meta {
  font-size: 0.85em;
  color: var(--hs-fg-3);
  margin-bottom: 1.5rem;
}

/* ---------- Inline highlights ---------- */
.hs-hl {
  background: transparent;
  color: inherit;
  padding: 0.05em 0.15em;
  border-radius: 2px;
  border-bottom: 2px solid transparent;
  cursor: help;
  transition: background-color 120ms ease, border-color 120ms ease;
}
.hs-hl-ok        { background: var(--hs-hl-ok-bg);        border-bottom-color: var(--hs-status-ok); }
.hs-hl-watch     { background: var(--hs-hl-watch-bg);     border-bottom-color: var(--hs-status-watch); }
.hs-hl-stretched { background: var(--hs-hl-stretched-bg); border-bottom-color: var(--hs-status-stretched); }
.hs-hl-broken    { background: var(--hs-hl-broken-bg);    border-bottom-color: var(--hs-status-broken); }
.hs-hl-unknown   { background: var(--hs-hl-unknown-bg);   border-bottom-color: var(--hs-status-unknown-border); }

.hs-hl:hover           { background-color: rgba(0, 0, 0, 0.06); }
.hs-hl-ok:hover        { background-color: rgba(45, 106, 79, 0.22); }
.hs-hl-watch:hover     { background-color: rgba(181, 163, 0, 0.30); }
.hs-hl-stretched:hover { background-color: rgba(212, 98, 26, 0.28); }
.hs-hl-broken:hover    { background-color: rgba(176, 0, 32, 0.22); }
.hs-hl-unknown:hover   { background-color: rgba(102, 102, 102, 0.20); }

.hs-hl:focus-visible {
  outline: 2px solid var(--hs-accent);
  outline-offset: 2px;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.6);
}
.hs-hl[data-pinned] {
  box-shadow: 0 0 0 2px rgba(1, 114, 173, 0.35);
}

/* ---------- Tooltip ---------- */
.hs-tooltip {
  position: absolute;
  z-index: 1000;
  max-width: 22rem;
  min-width: 14rem;
  pointer-events: none;
  background: var(--hs-bg-page);
  color: var(--hs-fg-1);
  border: 1px solid var(--hs-border);
  border-radius: 6px;
  padding: 0.65rem 0.85rem;
  font-size: 0.9rem;
  line-height: 1.4;
}
.hs-tooltip[hidden] { display: none; }
.hs-tooltip-inner { display: flex; flex-direction: column; gap: 0.25rem; }
.hs-tooltip-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.15rem;
}
.hs-tooltip-name {
  font-weight: 600;
  font-size: 0.95rem;
}
.hs-tooltip-pill {
  font-size: 0.75rem;
  letter-spacing: 0.02em;
}
.hs-tooltip-row { font-size: 0.85rem; }
.hs-tooltip-row[hidden] { display: none; }
.hs-tooltip-note {
  margin-top: 0.35rem;
  padding-top: 0.35rem;
  border-top: 1px solid var(--hs-border-muted);
  font-size: 0.85rem;
  color: var(--hs-fg-2);
  font-style: italic;
}
.hs-tooltip-note[hidden] { display: none; }

/* Status pills inside the tooltip — match the highlight palette. */
.hs-tooltip-pill.hs-hl-ok        { background: var(--hs-status-ok-bg);        color: #1b4332; padding: 0.1em 0.5em; border-radius: 4px; }
.hs-tooltip-pill.hs-hl-watch     { background: var(--hs-status-watch-bg);     color: #6b5c00; padding: 0.1em 0.5em; border-radius: 4px; }
.hs-tooltip-pill.hs-hl-stretched { background: var(--hs-status-stretched-bg); color: #7a3a10; padding: 0.1em 0.5em; border-radius: 4px; }
.hs-tooltip-pill.hs-hl-broken    { background: var(--hs-status-broken-bg);    color: #6b0014; padding: 0.1em 0.5em; border-radius: 4px; }
.hs-tooltip-pill.hs-hl-unknown   { background: var(--hs-status-unknown-bg);   color: #444;    padding: 0.1em 0.5em; border-radius: 4px; }

/* ---------- Status timeline (per-assumption, on thesis page) ---------- */
hs-status-timeline {
  display: block;
  margin-top: 0.75rem;
  padding-top: 0.6rem;
  border-top: 1px solid var(--hs-border-muted);
}
.hs-timeline-header {
  font-size: 0.8em;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--hs-fg-3);
  margin-bottom: 0.4rem;
}
.hs-timeline-bar {
  display: flex;
  width: 100%;
  height: 14px;
  border-radius: 2px;
  overflow: hidden;
  background: var(--hs-bg-muted);
  border: 1px solid var(--hs-border-muted);
}
.hs-timeline-segment {
  height: 100%;
  min-width: 0;
}
.hs-timeline-segment-ok        { background: var(--hs-status-ok); }
.hs-timeline-segment-watch     { background: var(--hs-status-watch); }
.hs-timeline-segment-stretched { background: var(--hs-status-stretched); }
.hs-timeline-segment-broken    { background: var(--hs-status-broken); }
.hs-timeline-segment-unknown   { background: var(--hs-status-unknown-border); }
.hs-timeline-axis {
  display: flex;
  justify-content: space-between;
  font-size: 0.75em;
  color: var(--hs-fg-3);
  margin-top: 0.35rem;
}

/* ---------- Status bar (theses list) ---------- */
.hs-status-bar {
  display: flex;
  height: 8px;
  border-radius: 4px;
  overflow: hidden;
  background: var(--hs-status-unknown-bg);
  min-width: 80px;
}
.hs-status-bar > span {
  display: block;
  height: 100%;
}
.hs-bar-ok        { background: var(--hs-status-ok); }
.hs-bar-watch     { background: var(--hs-status-watch); }
.hs-bar-stretched { background: var(--hs-status-stretched); }
.hs-bar-broken    { background: var(--hs-status-broken); }
.hs-bar-unknown   { background: #ccc; }
.hs-bar-loading {
  width: 1rem;
  height: 1rem;
  border: 2px solid #ddd;
  border-top-color: var(--hs-accent);
  border-radius: 50%;
  animation: hs-spin 0.8s linear infinite;
}

/* ---------- Row tints on /theses (signal: status flipped since saved) ---------- */
tbody tr.hs-tint-improved { background: rgba(45, 106, 79, 0.08); }
tbody tr.hs-tint-degraded { background: rgba(176, 0, 32, 0.08); }
tbody tr.hs-tint-mixed    { background: rgba(212, 98, 26, 0.10); }

.hs-tint-legend {
  font-size: 0.85em;
  color: var(--hs-fg-3);
  margin: 0 0 0.5rem 0;
  font-style: italic;
}
.hs-tint-legend[hidden] { display: none; }

/* ---------- Spinner ---------- */
.hs-spinner {
  display: inline-block;
  width: 1.5rem;
  height: 1.5rem;
  border: 3px solid #ddd;
  border-top-color: var(--hs-accent);
  border-radius: 50%;
  animation: hs-spin 0.8s linear infinite;
  vertical-align: middle;
  margin-right: 0.5rem;
}
@keyframes hs-spin {
  to { transform: rotate(360deg); }
}

/* ---------- Loading / empty / error blocks ---------- */
.hs-loading {
  text-align: center;
  padding: 2rem;
}
.hs-empty {
  text-align: center;
  padding: 2rem;
  color: var(--hs-fg-2);
}
/* No pink fill — hairline border in status-broken, transparent background. */
.hs-error {
  color: var(--hs-status-broken);
  padding: 1rem;
  border: 1px solid #fdd;
  border-radius: 4px;
  background: transparent;
}

/* Login-form status messages — same flat treatment as .hs-error. */
.hs-error-msg {
  color: var(--hs-status-broken);
  border: 1px solid #fdd;
  border-radius: 4px;
  padding: 0.5rem 1rem;
  margin-bottom: 1rem;
  background: transparent;
  display: none;
}
.hs-info-msg {
  color: var(--hs-status-ok);
  border: 1px solid #b7dfc6;
  border-radius: 4px;
  padding: 0.5rem 1rem;
  margin-bottom: 1rem;
  background: transparent;
  display: none;
}