/* ============================================================
   VITAL SUITE — DESIGN TOKENS (DRAFT v1, 2026-04-14)
   Mercury-inspired. RIT Brand Book governs.
   ============================================================ */

:root {
  /* ---- BRAND (RIT Brand Book — authoritative) ---- */
  --brand-navy:        #25326B;
  --brand-blue:        #2489E2;
  --brand-gold:        #F1B91B;   /* insight accent ONLY */

  /* ---- CANVAS / SURFACE (Mercury-style tonal stack) ---- */
  --bg-page:           #0A0D14;   /* page base — deep navy-black */
  --bg-surface:        #14161B;   /* card bg */
  --bg-surface-hi:     #1A1D24;   /* hover lift (+~3%) */
  --bg-surface-sunk:   #0E1117;   /* inset wells, table stripes */
  --bg-rail:           #0C0F16;   /* left rail, slightly darker than page */

  /* ---- BORDERS / ELEVATION ---- */
  --border-soft:       rgba(255,255,255,0.06);
  --border-med:        rgba(255,255,255,0.10);
  --border-strong:     rgba(255,255,255,0.16);
  --border-brand:      rgba(36,137,226,0.35);

  /* ---- TEXT ---- */
  --text-hi:           rgba(255,255,255,0.96);
  --text-med:          rgba(255,255,255,0.70);
  /* QC-13 a11y fix (Rich 2026-04-18): lifted text-lo 0.48→0.58 and
   * text-muted 0.32→0.52 so body-text contrast vs #0A0D14 bg lands
   * at ~4.6:1 (WCAG AA for body text) instead of the prior ~3.9:1
   * (fails AA). Visual effect: subtle \u2014 muted rows read slightly
   * brighter but still clearly sub-dominant. Hero + h1/h2 tokens
   * (text_hi) unchanged. */
  --text-lo:           rgba(255,255,255,0.58);
  --text-muted:        rgba(255,255,255,0.56);  /* repeat QC-13: 0.52→0.56 so it passes AA on #1A1D24 hover surface */
  --text-on-brand:     #FFFFFF;

  /* ---- SEMANTIC (states, only used with intent) ---- */
  --ok:                #34C759;
  --warn:              #F1B91B;   /* = brand gold */
  --risk:              #FF6B6B;
  --info:              #2489E2;   /* = brand blue */

  /* ---- TYPOGRAPHY ---- */
  --font-display:      'Inter', system-ui, -apple-system, sans-serif;
  --font-body:         'Rubik', system-ui, -apple-system, sans-serif;
  --font-mono:         'JetBrains Mono', ui-monospace, monospace;

  /* type scale */
  --fs-display:        40px;   /* hero metric */
  --fs-h1:             22px;   /* page title */
  --fs-h2:             16px;   /* section header */
  --fs-h3:             13px;   /* card title */
  --fs-body:           14px;
  --fs-small:          12px;
  --fs-eyebrow:        11px;   /* uppercase tracked labels */

  --lh-tight:          1.1;
  --lh-snug:           1.3;
  --lh-body:           1.5;

  --tracking-eyebrow:  0.08em;
  --tracking-tight:    -0.01em;

  /* ---- SPACING SCALE (4pt grid) ---- */
  --s-1:   4px;
  --s-2:   8px;
  --s-3:  12px;
  --s-4:  16px;
  --s-5:  24px;
  --s-6:  32px;
  --s-7:  48px;
  --s-8:  64px;

  /* ---- RADIUS ---- */
  --r-sm:  6px;
  --r-md: 10px;
  --r-lg: 14px;   /* .vs-card default */
  --r-xl: 20px;

  /* ---- MOTION ---- */
  --ease:             cubic-bezier(0.2, 0.8, 0.2, 1);
  --dur-fast:         120ms;
  --dur:              150ms;
  --dur-slow:         240ms;

  /* ---- LAYOUT ---- */
  --rail-w:           248px;
  --content-max:     1320px;
  --card-pad:         24px;
  --card-pad-lg:      32px;
}

/* ============================================================
   RESET + BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg-page);
  color: var(--text-hi);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: var(--tracking-tight);
  margin: 0;
}
a { color: var(--brand-blue); text-decoration: none; transition: color var(--dur) var(--ease); }
a:hover { color: #5AAEEE; }
.num, .tabnum { font-variant-numeric: tabular-nums; }

/* ============================================================
   LAYOUT — APP SHELL (left rail + content)   [8.1.5b — not active in 8.1.5a]
   ============================================================ */
.vs-shell {
  display: grid;
  grid-template-columns: var(--rail-w) 1fr;
  min-height: 100vh;
}

.vs-rail {
  background: var(--bg-rail);
  border-right: 1px solid var(--border-soft);
  padding: var(--s-5) var(--s-4);
  position: sticky; top: 0; height: 100vh;
  display: flex; flex-direction: column; gap: var(--s-5);
}

.vs-rail__brand {
  display: flex; align-items: center; gap: var(--s-3);
  padding: 0 var(--s-2) var(--s-4);
  border-bottom: 1px solid var(--border-soft);
}
.vs-rail__brand .logo {
  width: 32px; height: 32px; border-radius: var(--r-sm);
  background: linear-gradient(135deg, var(--brand-blue), var(--brand-navy));
  display: grid; place-items: center; color: #fff; font-weight: 700; font-size: 14px;
  font-family: var(--font-display);
}
.vs-rail__brand .wordmark {
  font-family: var(--font-display); font-weight: 600; font-size: 14px;
  letter-spacing: 0.02em;
}
.vs-rail__brand .wordmark small {
  display: block; color: var(--text-lo); font-size: 10px; font-weight: 400;
  letter-spacing: var(--tracking-eyebrow); text-transform: uppercase; margin-top: 2px;
}

.vs-workspace {
  background: var(--bg-surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-md);
  padding: var(--s-3);
  display: flex; align-items: center; gap: var(--s-3);
  cursor: pointer;
  transition: background var(--dur) var(--ease);
}
.vs-workspace:hover { background: var(--bg-surface-hi); }
.vs-workspace .avatar {
  width: 28px; height: 28px; border-radius: var(--r-sm);
  background: #2A2F3A; display: grid; place-items: center;
  color: var(--text-med); font-weight: 600; font-size: 11px;
  flex-shrink: 0;
}
.vs-workspace .names { flex: 1; min-width: 0; }
.vs-workspace .names .name {
  font-size: var(--fs-body); font-weight: 500; color: var(--text-hi);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.vs-workspace .names .sub {
  font-size: var(--fs-small); color: var(--text-lo);
}
.vs-workspace .chev { color: var(--text-lo); }

.vs-nav { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.vs-nav__group {
  font-size: var(--fs-eyebrow); letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase; color: var(--text-muted);
  padding: var(--s-3) var(--s-2) var(--s-2);
}
.vs-nav__item {
  display: flex; align-items: center; gap: var(--s-3);
  padding: 8px var(--s-2);
  border-radius: var(--r-sm);
  color: var(--text-med); font-size: var(--fs-body);
  cursor: pointer;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.vs-nav__item:hover { background: var(--bg-surface); color: var(--text-hi); }
.vs-nav__item.is-active {
  background: var(--bg-surface); color: var(--text-hi);
  box-shadow: inset 2px 0 0 var(--brand-blue);
}
.vs-nav__item .ico { width: 16px; height: 16px; flex-shrink: 0; opacity: 0.85; }
.vs-nav__item .badge {
  margin-left: auto; font-size: 10px; color: var(--text-lo);
  background: var(--bg-surface-hi); padding: 2px 6px; border-radius: 999px;
}

.vs-rail__user {
  border-top: 1px solid var(--border-soft);
  padding-top: var(--s-4);
  display: flex; align-items: center; gap: var(--s-3);
}
.vs-rail__user .av {
  width: 32px; height: 32px; border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-gold), #B8871A);
  display: grid; place-items: center; font-weight: 700; color: #1a1a1a; font-size: 13px;
  flex-shrink: 0;
}
.vs-rail__user .info { flex: 1; min-width: 0; }
.vs-rail__user .info .n { font-size: var(--fs-small); color: var(--text-hi); font-weight: 500; }
.vs-rail__user .info .r { font-size: 10px; color: var(--text-lo); letter-spacing: var(--tracking-eyebrow); text-transform: uppercase; }
.vs-rail__user .gear { color: var(--text-lo); cursor: pointer; }
.vs-rail__user .gear:hover { color: var(--text-hi); }

/* ============================================================
   CONTENT AREA
   ============================================================ */
.vs-main { padding: var(--s-6) var(--s-7); max-width: var(--content-max); }

.vs-page-head {
  display: flex; align-items: end; justify-content: space-between;
  padding-bottom: var(--s-5);
  border-bottom: 1px solid var(--border-soft);
  margin-bottom: var(--s-6);
}
.vs-page-head .eyebrow {
  font-size: var(--fs-eyebrow); letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase; color: var(--text-lo); margin-bottom: var(--s-2);
}
.vs-page-head h1 { font-size: var(--fs-h1); }
.vs-page-head .sub { color: var(--text-lo); font-size: var(--fs-body); margin-top: var(--s-2); }
.vs-page-head .actions { display: flex; gap: var(--s-2); }

/* ============================================================
   COMPONENTS
   ============================================================ */
.vs-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-soft);
  border-radius: var(--r-lg);
  padding: var(--card-pad);
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.vs-card:hover { background: var(--bg-surface-hi); }
.vs-card--lg { padding: var(--card-pad-lg); }
.vs-card--flush { padding: 0; }
.vs-card__head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--s-4);
}
.vs-card__title {
  font-family: var(--font-display);
  font-size: var(--fs-h3); font-weight: 600;
  color: var(--text-hi);
}
.vs-card__eyebrow {
  font-size: var(--fs-eyebrow); letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase; color: var(--text-lo);
  margin-bottom: var(--s-2);
}
.vs-card__foot {
  margin-top: var(--s-4); padding-top: var(--s-4);
  border-top: 1px solid var(--border-soft);
  color: var(--text-lo); font-size: var(--fs-small);
  display: flex; justify-content: space-between;
}

.vs-hero {
  font-family: var(--font-display);
  font-size: var(--fs-display); font-weight: 700;
  letter-spacing: -0.02em; line-height: var(--lh-tight);
  font-variant-numeric: tabular-nums;
  color: var(--text-hi);
}
.vs-hero--gold { color: var(--brand-gold); }
.vs-delta {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: var(--fs-small); font-weight: 500;
  padding: 2px 8px; border-radius: 999px;
  font-variant-numeric: tabular-nums;
}
.vs-delta--up   { color: var(--ok);   background: rgba(52,199,89,0.08); }
.vs-delta--down { color: var(--risk); background: rgba(255,107,107,0.08); }
.vs-delta--flat { color: var(--text-lo); background: rgba(255,255,255,0.04); }

.vs-metric-row {
  display: flex; align-items: baseline; gap: var(--s-3);
  flex-wrap: wrap;
}
.vs-metric-row .label {
  font-size: var(--fs-eyebrow); letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase; color: var(--text-lo);
  display: block; margin-bottom: var(--s-2);
}

.vs-spark { display: block; width: 100%; height: 48px; margin-top: var(--s-3); }

.vs-grid { display: grid; gap: var(--s-4); }
.vs-grid--3 { grid-template-columns: repeat(3, 1fr); }
.vs-grid--4 { grid-template-columns: repeat(4, 1fr); }
.vs-grid--2 { grid-template-columns: repeat(2, 1fr); }
.vs-grid--2-1 { grid-template-columns: 2fr 1fr; }

.vs-section {
  display: flex; align-items: baseline; justify-content: space-between;
  margin: var(--s-7) 0 var(--s-4);
}
.vs-section h2 {
  font-size: var(--fs-h2); font-weight: 600;
  text-transform: none; letter-spacing: 0;
}
.vs-section .meta { font-size: var(--fs-small); color: var(--text-lo); }

.vs-table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.vs-table th, .vs-table td {
  padding: var(--s-3) var(--s-4);
  text-align: left; font-size: var(--fs-body);
  border-bottom: 1px solid var(--border-soft);
}
.vs-table th {
  font-size: var(--fs-eyebrow); letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase; color: var(--text-lo); font-weight: 500;
  background: var(--bg-surface-sunk);
}
.vs-table tbody tr { transition: background var(--dur) var(--ease); }
.vs-table tbody tr:hover { background: var(--bg-surface-hi); }
.vs-table td.num, .vs-table th.num { text-align: right; }

.pill {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11px; font-weight: 500;
  padding: 2px 10px; border-radius: 999px;
  background: var(--bg-surface-hi); color: var(--text-med);
  border: 1px solid var(--border-soft);
}
.pill--ok   { color: var(--ok);   border-color: rgba(52,199,89,0.25);  background: rgba(52,199,89,0.06); }
.pill--warn { color: var(--warn); border-color: rgba(241,185,27,0.25); background: rgba(241,185,27,0.06); }
.pill--risk { color: var(--risk); border-color: rgba(255,107,107,0.25); background: rgba(255,107,107,0.06); }
.pill--info { color: var(--info); border-color: rgba(36,137,226,0.25); background: rgba(36,137,226,0.06); }
.pill .dot { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

.btn {
  display: inline-flex; align-items: center; gap: var(--s-2);
  padding: 8px 14px; font-size: var(--fs-body); font-weight: 500;
  border-radius: var(--r-md); border: 1px solid var(--border-soft);
  background: var(--bg-surface); color: var(--text-hi);
  cursor: pointer;
  transition: background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.btn:hover { background: var(--bg-surface-hi); border-color: var(--border-med); }
.btn--primary {
  background: var(--brand-blue); border-color: var(--brand-blue); color: #fff;
}
.btn--primary:hover { background: #3A9BEE; border-color: #3A9BEE; }
.btn--ghost { background: transparent; }

.vs-insight {
  border-left: 2px solid var(--brand-gold);
  padding: var(--s-2) var(--s-4);
  background: rgba(241,185,27,0.04);
  border-radius: 0 var(--r-sm) var(--r-sm) 0;
}
.vs-insight .eyebrow {
  font-size: var(--fs-eyebrow); letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase; color: var(--brand-gold);
  margin-bottom: 4px;
}
.vs-insight .body { color: var(--text-hi); font-size: var(--fs-body); }

.vs-progress {
  width: 100%; height: 6px; background: var(--bg-surface-sunk);
  border-radius: 999px; overflow: hidden;
}
.vs-progress__fill {
  height: 100%; background: var(--brand-blue); border-radius: 999px;
}
.vs-progress__fill--gold { background: var(--brand-gold); }
.vs-progress__fill--ok   { background: var(--ok); }