/* ============================================================
   shared.css — Have a Sense About Everything
   Design tokens · Reset · Layout · Shared components
   ============================================================ */

/* === DESIGN TOKENS === */
:root {
  --color-background-primary: #ffffff;
  --color-background-secondary: #f5f5f4;
  --color-background-tertiary: #eeede8;
  --color-background-info: #e6f1fb;
  --color-background-success: #eaf3de;
  --color-background-warning: #faeeda;
  --color-background-danger: #fcebeb;

  --color-text-primary: #1a1a18;
  --color-text-secondary: #5f5e5a;
  --color-text-tertiary: #888780;
  --color-text-info: #0c447c;
  --color-text-success: #27500a;
  --color-text-warning: #633806;
  --color-text-danger: #791f1f;

  --color-border-primary: rgba(0,0,0,0.4);
  --color-border-secondary: rgba(0,0,0,0.3);
  --color-border-tertiary: rgba(0,0,0,0.15);
  --color-border-info: #85b7eb;
  --color-border-success: #97c459;
  --color-border-warning: #ef9f27;
  --color-border-danger: #f09595;

  --font-sans: system-ui, -apple-system, sans-serif;
  --font-serif: Georgia, serif;
  --font-mono: 'Courier New', monospace;

  --border-radius-md: 8px;
  --border-radius-lg: 12px;
  --border-radius-xl: 16px;

  --page-max-width: 860px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-background-primary: #1c1c1a;
    --color-background-secondary: #252523;
    --color-background-tertiary: #2e2e2b;
    --color-background-info: #0c2540;
    --color-background-success: #142808;
    --color-background-warning: #2a1a03;
    --color-background-danger: #2a0a0a;

    --color-text-primary: #e8e6df;
    --color-text-secondary: #a8a69e;
    --color-text-tertiary: #6e6c65;
    --color-text-info: #85b7eb;
    --color-text-success: #97c459;
    --color-text-warning: #ef9f27;
    --color-text-danger: #f09595;

    --color-border-primary: rgba(255,255,255,0.4);
    --color-border-secondary: rgba(255,255,255,0.25);
    --color-border-tertiary: rgba(255,255,255,0.12);
  }
}


/* === RESET AND BASE === */
*, *::before, *::after { box-sizing: border-box; }

body {
  font-family: var(--font-sans);
  background: var(--color-background-tertiary);
  color: var(--color-text-primary);
  margin: 0;
  padding: 0;
  font-size: 16px;
  line-height: 1.7;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}


/* === LAYOUT === */
.page-wrap {
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 2rem 1.5rem;
}


/* === NAVIGATION === */
.nav-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-secondary);
  text-decoration: none;
  margin-bottom: 1.5rem;
  padding: 5px 0;
}
.nav-back:hover { color: var(--color-text-primary); }


/* === MODULE PAGE TITLE === */
.module-title {
  font-size: 22px;
  font-weight: 500;
  color: var(--color-text-primary);
  margin: 0 0 0.25rem;
}
.module-subtitle {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0 0 2rem;
}


/* === SECTION HEADING === */
.sec {
  margin: 2rem 0 0.6rem;
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text-secondary);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  border-bottom: 0.5px solid var(--color-border-tertiary);
  padding-bottom: 5px;
}


/* === CARD === */
.card {
  background: var(--color-background-primary);
  border: 0.5px solid var(--color-border-tertiary);
  border-radius: var(--border-radius-lg);
  padding: 13px 15px;
}


/* === CARD GRID === */
.cgrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 1rem;
}


/* === METRIC CARD PARTS === */
.clabel { font-size: 11px; color: var(--color-text-secondary); margin: 0 0 3px; }
.cval   { font-size: 20px; font-weight: 500; color: var(--color-text-primary); margin: 0 0 2px; }
.cnote  { font-size: 12px; color: var(--color-text-secondary); margin: 0; line-height: 1.5; }


/* === Q&A REVEAL === */
.qa {
  background: var(--color-background-secondary);
  border-radius: var(--border-radius-md);
  padding: 11px 13px;
  margin-bottom: 8px;
}
.qa-q   { font-size: 13px; font-weight: 500; color: var(--color-text-primary); margin: 0 0 7px; }
.qa-btn {
  font-size: 12px;
  color: var(--color-text-secondary);
  cursor: pointer;
  border: 0.5px solid var(--color-border-secondary);
  border-radius: var(--border-radius-md);
  padding: 3px 10px;
  background: none;
}
.qa-btn:hover { background: var(--color-background-primary); }
.qa-ans {
  font-size: 13px;
  color: var(--color-text-primary);
  margin-top: 8px;
  display: none;
  line-height: 1.6;
}
.qa-ans.show { display: block; }


/* === ANCHOR ROW (used in 11+ modules) === */
.anchor-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  border-bottom: 0.5px solid var(--color-border-tertiary);
}
.anchor-row:last-child { border-bottom: none; }
.atext { font-size: 13px; color: var(--color-text-primary); line-height: 1.5; }
.asub  { font-size: 12px; color: var(--color-text-secondary); margin-top: 1px; }


/* === PILL BADGES (used in 10+ modules) === */
.pill {
  font-size: 12px;
  font-weight: 500;
  border-radius: var(--border-radius-md);
  padding: 3px 9px;
  min-width: 82px;
  text-align: center;
  flex-shrink: 0;
}
.p-amber  { color: #633806; background: #FAEEDA; }
.p-green  { color: #27500A; background: #EAF3DE; }
.p-blue   { color: #0C447C; background: #E6F1FB; }
.p-purple { color: #3C3489; background: #EEEDFE; }
.p-teal   { color: #085041; background: #E1F5EE; }
.p-coral  { color: #712B13; background: #FAECE7; }
.p-red    { color: #791F1F; background: #FCEBEB; }


/* === HORIZONTAL BAR ROW (used in 5+ modules) === */
.bar-row {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 5px;
}
.bl {
  font-size: 12px;
  color: var(--color-text-secondary);
  width: 140px;
  flex-shrink: 0;
  text-align: right;
  padding-right: 10px;
  line-height: 1.3;
}
.bb {
  height: 22px;
  border-radius: 3px;
  display: flex;
  align-items: center;
  padding: 0 8px;
  min-width: 4px;
}
.bv { font-size: 11px; font-weight: 500; white-space: nowrap; }


/* === PROGRESS BAR (used in modules 1, 2) === */
.bar-wrap  { margin: 6px 0 14px; }
.bar-label { display: flex; justify-content: space-between; font-size: 12px; color: var(--color-text-secondary); margin-bottom: 3px; }
.bar-track { background: var(--color-background-secondary); border-radius: 4px; height: 10px; overflow: hidden; }
.bar-fill  { height: 10px; border-radius: 4px; }


/* === BUTTONS (interactive explorer buttons) === */
button {
  background: none;
  border: 0.5px solid var(--color-border-secondary);
  border-radius: var(--border-radius-md);
  color: var(--color-text-primary);
  cursor: pointer;
  padding: 4px 12px;
  font-size: 13px;
  font-family: var(--font-sans);
  transition: background 0.1s;
}
button:hover  { background: var(--color-background-secondary); }
button:active { transform: scale(0.98); }


/* === FORM INPUTS === */
input[type="number"],
input[type="text"],
select {
  height: 36px;
  padding: 0 10px;
  border-radius: var(--border-radius-md);
  border: 0.5px solid var(--color-border-secondary);
  background: var(--color-background-primary);
  color: var(--color-text-primary);
  font-size: 13px;
  font-family: var(--font-sans);
  width: 100%;
}
input[type="range"] {
  width: 100%;
  accent-color: var(--color-text-info);
}


/* ============================================================
   THEME OVERRIDES (manual toggle via data-theme attribute)
   ============================================================ */
html[data-theme="light"] {
  --color-background-primary: #ffffff;
  --color-background-secondary: #f5f5f4;
  --color-background-tertiary: #eeede8;
  --color-background-info: #e6f1fb;
  --color-background-success: #eaf3de;
  --color-background-warning: #faeeda;
  --color-background-danger: #fcebeb;
  --color-text-primary: #1a1a18;
  --color-text-secondary: #5f5e5a;
  --color-text-tertiary: #888780;
  --color-text-info: #0c447c;
  --color-text-success: #27500a;
  --color-text-warning: #633806;
  --color-text-danger: #791f1f;
  --color-border-primary: rgba(0,0,0,0.4);
  --color-border-secondary: rgba(0,0,0,0.3);
  --color-border-tertiary: rgba(0,0,0,0.15);
}
html[data-theme="dark"] {
  --color-background-primary: #1c1c1a;
  --color-background-secondary: #252523;
  --color-background-tertiary: #2e2e2b;
  --color-background-info: #0c2540;
  --color-background-success: #142808;
  --color-background-warning: #2a1a03;
  --color-background-danger: #2a0a0a;
  --color-text-primary: #e8e6df;
  --color-text-secondary: #a8a69e;
  --color-text-tertiary: #6e6c65;
  --color-text-info: #85b7eb;
  --color-text-success: #97c459;
  --color-text-warning: #ef9f27;
  --color-text-danger: #f09595;
  --color-border-primary: rgba(255,255,255,0.4);
  --color-border-secondary: rgba(255,255,255,0.25);
  --color-border-tertiary: rgba(255,255,255,0.12);
}


/* ============================================================
   TOPBAR (injected by shared.js)
   ============================================================ */
.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: var(--page-max-width);
  margin: 0 auto;
  padding: 12px 1.5rem 0;
}
.topbar-left,
.topbar-right {
  display: flex;
  align-items: center;
  gap: 6px;
}
.topbar-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 0.5px solid var(--color-border-tertiary);
  background: var(--color-background-primary);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
  padding: 0;
  text-decoration: none;
}
.topbar-btn:hover {
  background: var(--color-background-secondary);
  color: var(--color-text-primary);
  border-color: var(--color-border-secondary);
}
.topbar-btn svg { width: 16px; height: 16px; }
.topbar-btn--disabled {
  opacity: 0.3;
  pointer-events: none;
  cursor: default;
}