/* ============================================================================
 *  MEDPATH · FLOW — Design system
 *  ---------------------------------------------------------------------------
 *  Palette rationale (clinical / workers'-comp B2B; distinct from the teal of
 *  the reference site): a deep navy "ink" base reads as calm, trustworthy, and
 *  medical. A single clinical BLUE carries the ScriptNet/MedPath current.
 *  VIOLET marks the optional AI layer (intelligence, set apart). AMBER is
 *  reserved exclusively as the opioid RISK MARKER so it always means "look
 *  here." EMERALD signals restorative pathways. Type is a system stack (no web
 *  fonts → fully offline): humanist sans for prose, monospace for technical
 *  labels (NCPDP codes, eyebrows) to give a clinical-systems feel.
 * ========================================================================== */

:root {
  /* surfaces */
  --bg-0:#081120; --bg-1:#0b1830; --bg-2:#0f1f3b; --bg-3:#16294a;
  --line:#22375d; --line-soft:rgba(120,150,200,.14);

  /* ink */
  --ink:#eaf1fc; --ink-2:#aebfdb; --ink-3:#7388ad; --ink-4:#4a5d82;

  /* accents */
  --blue:#4d94ff; --blue-bright:#7db4ff; --blue-soft:rgba(77,148,255,.16);
  --cyan:#2dd4d4; --violet:#9b7dff; --violet-bright:#b9a3ff;
  --amber:#f5a524; --amber-bright:#ffc05a;
  --emerald:#37d399; --coral:#fb7185;

  /* type */
  --sans: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, "Cascadia Code", "SF Mono", Menlo, Consolas, monospace;

  /* motion */
  --ease: cubic-bezier(.16,1,.3,1);
  --ease-spring: cubic-bezier(.34,1.4,.6,1);
}

* , *::before , *::after { box-sizing:border-box; }

html,body{ margin:0; padding:0; }
body{
  font-family:var(--sans);
  color:var(--ink);
  background:
    radial-gradient(1200px 600px at 12% -8%, rgba(77,148,255,.10), transparent 60%),
    radial-gradient(1000px 620px at 92% 8%, rgba(155,125,255,.08), transparent 60%),
    var(--bg-0);
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
  display:flex; flex-direction:column;
  overflow-x:hidden;
}
::selection{ background:var(--blue); color:var(--bg-0); }
strong{ color:var(--ink); font-weight:600; }
em{ font-style:italic; }

/* ---------- shared bits ---------- */
.eyebrow{
  font-family:var(--mono); font-size:11px; font-weight:600;
  letter-spacing:.2em; text-transform:uppercase; color:var(--blue);
  display:inline-flex; align-items:center; gap:11px;
}
.eyebrow::before{ content:""; width:26px; height:1px; background:currentColor; }
.eyebrow--violet{ color:var(--violet); }

.kbd{
  font-family:var(--mono); font-size:.85em; color:var(--blue-bright);
  background:var(--blue-soft); border:1px solid var(--line);
  padding:.08em .5em; border-radius:6px; white-space:nowrap;
}

/* ================= TOP BAR ================= */
.topbar{
  position:sticky; top:0; z-index:40;
  display:flex; align-items:center; justify-content:space-between; gap:20px;
  padding:14px clamp(16px,3vw,40px);
  background:rgba(8,17,32,.72); backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
}
.topbar__brand{ display:flex; align-items:center; gap:12px; min-width:0; }
.topbar__mark{ color:var(--blue); display:flex; }
.topbar__name{ font-weight:700; letter-spacing:-.01em; font-size:18px; white-space:nowrap; }
.topbar__name-dot{ color:var(--blue); margin:0 1px; }
.topbar__tag{
  color:var(--ink-3); font-size:13px; padding-left:14px; margin-left:2px;
  border-left:1px solid var(--line); white-space:nowrap;
  overflow:hidden; text-overflow:ellipsis;
}
.topbar__controls{ display:flex; align-items:center; gap:12px; flex-shrink:0; }

/* segmented view toggle */
.seg{
  position:relative; display:flex; padding:4px;
  background:var(--bg-2); border:1px solid var(--line); border-radius:999px;
}
.seg__btn{
  position:relative; z-index:2; border:0; background:transparent; cursor:pointer;
  font-family:var(--sans); font-size:13px; font-weight:600; color:var(--ink-3);
  padding:8px 18px; border-radius:999px; transition:color .3s var(--ease);
}
.seg__btn.is-active{ color:var(--bg-0); }
.seg__thumb{
  position:absolute; z-index:1; top:4px; left:4px; height:calc(100% - 8px);
  width:calc(50% - 4px); border-radius:999px;
  background:linear-gradient(120deg,var(--blue),var(--blue-bright));
  transition:transform .42s var(--ease-spring), background .42s var(--ease);
}
.seg[data-active="ai"] .seg__thumb{
  transform:translateX(100%);
  background:linear-gradient(120deg,var(--violet),var(--violet-bright));
}

/* motion control */
.ctl{
  display:flex; align-items:center; gap:8px; cursor:pointer;
  background:var(--bg-2); border:1px solid var(--line); border-radius:999px;
  color:var(--ink-2); font-family:var(--mono); font-size:11px;
  letter-spacing:.12em; text-transform:uppercase; padding:8px 14px;
  transition:border-color .3s var(--ease), color .3s var(--ease);
}
.ctl:hover{ border-color:var(--blue); color:var(--ink); }
.ctl__dot{
  width:8px; height:8px; border-radius:50%; background:var(--emerald);
  box-shadow:0 0 0 0 rgba(55,211,153,.6); animation:pulse 2.4s infinite;
}
.ctl[aria-pressed="true"] .ctl__dot{ background:var(--ink-4); animation:none; box-shadow:none; }
@keyframes pulse{
  0%{ box-shadow:0 0 0 0 rgba(55,211,153,.5); }
  70%{ box-shadow:0 0 0 7px rgba(55,211,153,0); }
  100%{ box-shadow:0 0 0 0 rgba(55,211,153,0); }
}

/* ================= STAGE / VIEWS ================= */
.stage{ flex:1; width:100%; max-width:1320px; margin:0 auto;
  padding:clamp(24px,4vw,52px) clamp(16px,3vw,40px) 12px; }

.view{ display:none; animation:viewIn .5s var(--ease); }
.view.is-active{ display:block; }
@keyframes viewIn{ from{ opacity:0; transform:translateY(10px);} to{ opacity:1; transform:none;} }

.view__head{ max-width:820px; margin-bottom:clamp(22px,3vw,34px); }
.view__title{
  font-family:var(--sans); font-weight:700; letter-spacing:-.025em;
  font-size:clamp(26px,3.6vw,44px); line-height:1.06; margin:16px 0 14px;
}
.view__title em{ color:var(--violet-bright); font-weight:600; }
.view__lede{ color:var(--ink-2); font-size:clamp(14px,1.15vw,17px); line-height:1.6; margin:0; }

/* ---------- caption ---------- */
.caption{
  color:var(--ink-3); font-size:13px; line-height:1.6; max-width:880px;
  margin:20px auto 0; text-align:center;
}
.caption__flag{ color:var(--amber); font-weight:600; }

/* =====================================================================
 *  VIEW 1 — FLOW
 * ===================================================================== */
.flow-cols{
  display:grid; grid-template-columns:1fr 1.15fr 1fr; gap:12px;
  margin-bottom:6px; padding:0 4px;
}
.flow-cols__col{
  font-family:var(--mono); font-size:11px; letter-spacing:.16em;
  text-transform:uppercase; color:var(--ink-3); text-align:center;
}
.flow-cols__col:first-child{ text-align:left; }
.flow-cols__col:last-child{ text-align:right; }
.flow-cols__n{ color:var(--blue); margin-right:6px; }

.flowviz{
  position:relative; width:100%;
  background:
    radial-gradient(ellipse at 50% 45%, rgba(77,148,255,.06), transparent 62%),
    var(--bg-1);
  border:1px solid var(--line); border-radius:22px;
  padding:8px; overflow:hidden;
}
#flowSvg{ width:100%; height:auto; display:block; }

/* node cards rendered inside foreignObject */
.node{
  height:100%; display:flex; flex-direction:column; justify-content:center;
  gap:3px; padding:11px 13px; border-radius:13px;
  background:linear-gradient(160deg, var(--bg-3), var(--bg-2));
  border:1px solid var(--line);
  transition:border-color .35s var(--ease), box-shadow .35s var(--ease),
             transform .35s var(--ease), opacity .35s var(--ease);
}
.node__head{ display:flex; align-items:center; gap:9px; }
.node__glyph{
  width:26px; height:26px; flex-shrink:0; border-radius:8px;
  display:flex; align-items:center; justify-content:center;
  background:var(--accent-soft,var(--blue-soft)); color:var(--accent,var(--blue));
}
.node__glyph svg{ width:16px; height:16px; }
.node__name{ font-size:13.5px; font-weight:650; line-height:1.15; color:var(--ink); }
.node__desc{ font-size:11px; line-height:1.35; color:var(--ink-3); }

/* pathway node states */
.node--pathway{ cursor:default; border-color:var(--line); }
.node--pathway .node__name{ color:var(--accent,var(--ink)); }
.node--priority{
  border-color:var(--accent);
  box-shadow:0 0 0 1px var(--accent), 0 8px 30px -12px var(--accent);
}
.node--priority .node__badge{
  font-family:var(--mono); font-size:9px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--bg-0); background:var(--accent); padding:2px 7px; border-radius:5px;
  align-self:flex-start; margin-top:3px;
}
.node__note{
  font-size:10px; line-height:1.4; color:var(--ink-4); margin-top:4px;
  border-top:1px dashed var(--line); padding-top:5px;
}

/* hover spotlight: dim non-targets */
.flowviz.is-spotlight .node--pathway{ opacity:.32; }
.flowviz.is-spotlight .node--pathway.is-lit{
  opacity:1; transform:translateY(-2px);
  box-shadow:0 0 0 1px var(--accent), 0 14px 40px -14px var(--accent);
}

/* MedPath hub card */
.hub{
  height:100%; display:flex; flex-direction:column; gap:8px;
  padding:14px; border-radius:16px;
  background:
    radial-gradient(120% 90% at 50% 0%, rgba(77,148,255,.16), transparent 70%),
    linear-gradient(165deg,var(--bg-3),var(--bg-2));
  border:1px solid var(--blue); box-shadow:0 12px 50px -18px rgba(77,148,255,.7);
}
.hub__top{ display:flex; align-items:center; gap:10px; }
.hub__mark{ color:var(--blue); display:flex; }
.hub__title{ font-weight:750; font-size:17px; letter-spacing:-.01em; }
.hub__kicker{ font-family:var(--mono); font-size:9.5px; letter-spacing:.14em;
  text-transform:uppercase; color:var(--ink-3); }
.hub__steps{ display:flex; flex-direction:column; gap:6px; margin-top:2px; }
.hub__step{ display:flex; gap:9px; align-items:flex-start; }
.hub__step-n{
  font-family:var(--mono); font-size:10px; color:var(--blue-bright);
  border:1px solid var(--line); border-radius:5px; padding:1px 5px; margin-top:1px; flex-shrink:0;
  transition:color .5s var(--ease), border-color .5s var(--ease),
             box-shadow .5s var(--ease), background .5s var(--ease);
}
.hub__step-l{ font-size:12px; font-weight:650; color:var(--ink); }
.hub__step-d{ font-size:10.5px; line-height:1.35; color:var(--ink-3); }
/* subtle glow (not a hard fill) so frequent Capture→Screen→Route transitions
   read as a gentle pulse without viewer fatigue */
.hub__step.is-active .hub__step-n{
  color:var(--blue-bright);
  border-color:rgba(77,148,255,0.55);
  background:rgba(77,148,255,0.10);
  box-shadow:0 0 9px rgba(77,148,255,0.45);
}

/* legend */
.legend{ display:flex; flex-wrap:wrap; gap:10px 22px; justify-content:center;
  margin-top:16px; font-family:var(--mono); font-size:11px; letter-spacing:.08em; color:var(--ink-2); }
.legend__item{ display:flex; align-items:center; gap:8px; }
.legend__dot{ width:10px; height:10px; border-radius:50%; flex-shrink:0; }
.legend__dot--flag{ position:relative; }
.legend__dot--flag::after{
  content:""; position:absolute; inset:-4px; border-radius:50%;
  border:1.5px solid var(--amber); opacity:.7;
}
.legend__dot--surg{ border-radius:2px; transform:rotate(45deg); }

/* =====================================================================
 *  VIEW 2 — AI LAYER
 * ===================================================================== */
.scenarios{ display:grid; grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
  gap:12px; margin-bottom:24px; }
.scn{
  position:relative; overflow:hidden;
  text-align:left; cursor:pointer; padding:13px 15px; border-radius:14px;
  background:var(--bg-2); border:1px solid var(--line); color:var(--ink-2);
  font-family:var(--sans); font-size:13px; line-height:1.4;
  transition:border-color .3s var(--ease), transform .3s var(--ease), background .3s var(--ease);
}
/* countdown bar — visible only on the active card while auto-cycling */
.scn__timer{
  position:absolute; left:0; bottom:0; height:3px; width:0%;
  background:linear-gradient(90deg,var(--violet),var(--violet-bright));
  border-radius:0 3px 3px 0;
}
@keyframes scnCount{ from{ width:0%; } to{ width:100%; } }
.scn:hover{ border-color:var(--violet); transform:translateY(-2px); }
.scn.is-active{ border-color:var(--violet); background:linear-gradient(160deg,var(--bg-3),var(--bg-2));
  box-shadow:0 12px 40px -18px var(--violet); }
.scn__n{ font-family:var(--mono); font-size:10px; letter-spacing:.14em; color:var(--violet);
  text-transform:uppercase; display:block; margin-bottom:6px; }
.scn.is-active .scn__label{ color:var(--ink); }

.ai{ display:grid; grid-template-columns:1fr auto 1fr; gap:clamp(14px,2.5vw,40px);
  align-items:center; }
.ai__col{ display:flex; flex-direction:column; gap:12px; }

/* inputs */
.inp{
  position:relative; padding:13px 15px 13px 16px; border-radius:14px;
  background:var(--bg-2); border:1px solid var(--line);
  transition:border-color .4s var(--ease), box-shadow .4s var(--ease),
             opacity .4s var(--ease), transform .4s var(--ease);
}
.inp::before{ content:""; position:absolute; left:0; top:14px; bottom:14px; width:3px;
  border-radius:3px; background:var(--ink-4); transition:background .4s var(--ease), box-shadow .4s var(--ease); }
.inp__label{ font-size:13.5px; font-weight:650; color:var(--ink); }
.inp__desc{ font-size:11px; line-height:1.4; color:var(--ink-3); margin-top:2px; }
.inp__strength{ font-family:var(--mono); font-size:9.5px; letter-spacing:.14em;
  text-transform:uppercase; color:var(--ink-4); margin-top:7px; display:inline-block; }
.inp.is-optional{ border-style:dashed; }
.inp.lit{ border-color:var(--violet); box-shadow:0 8px 30px -16px var(--violet); }
.inp.lit::before{ background:var(--violet); box-shadow:0 0 12px var(--violet); }
.inp.lit .inp__strength{ color:var(--violet-bright); }
.inp.lit-low::before{ background:var(--emerald); box-shadow:0 0 12px var(--emerald); }
.inp.lit-low{ border-color:var(--emerald); }
.inp.lit-med::before{ background:var(--blue); box-shadow:0 0 12px var(--blue); }
.inp.lit-med{ border-color:var(--blue); }
.inp.lit-high::before{ background:var(--amber); box-shadow:0 0 12px var(--amber); }
.inp.lit-high{ border-color:var(--amber); }
.inp.is-dim{ opacity:.42; }

/* engine */
.ai__engine{ align-items:center; }
.engine{ position:relative; width:clamp(150px,16vw,200px); aspect-ratio:1; display:grid; place-items:center; }
.engine__ring{ position:absolute; inset:0; border-radius:50%;
  border:1px solid var(--line);
  background:conic-gradient(from 0deg, transparent, rgba(155,125,255,.18), transparent 60%);
  animation:spin 8s linear infinite; }
.engine__ring::after{ content:""; position:absolute; inset:9px; border-radius:50%;
  border:1px dashed var(--line-soft); }
@keyframes spin{ to{ transform:rotate(360deg); } }
.engine__core{ position:relative; z-index:2; width:74%; aspect-ratio:1; border-radius:50%;
  display:flex; flex-direction:column; align-items:center; justify-content:center; gap:5px; text-align:center;
  background:radial-gradient(circle at 50% 35%, var(--bg-3), var(--bg-1));
  border:1px solid var(--violet); box-shadow:0 0 50px -18px var(--violet); padding:10px; }
.engine.is-scoring .engine__core{ box-shadow:0 0 60px -10px var(--violet); }
.engine__kicker{ font-family:var(--mono); font-size:10px; letter-spacing:.22em; color:var(--violet); }
.engine__label{ font-size:13px; font-weight:650; color:var(--ink); }
.engine__meter{ width:70%; height:4px; border-radius:3px; background:var(--bg-3); overflow:hidden; margin-top:4px; }
.engine__meter-fill{ display:block; height:100%; width:0%;
  background:linear-gradient(90deg,var(--violet),var(--violet-bright));
  transition:width .9s var(--ease); }
.engine__status{ font-family:var(--mono); font-size:9.5px; letter-spacing:.12em;
  text-transform:uppercase; color:var(--ink-3); }

/* outputs */
.out{ padding:15px 16px; border-radius:14px; background:var(--bg-2); border:1px solid var(--line); }
.out__kicker{ font-family:var(--mono); font-size:10px; letter-spacing:.14em; text-transform:uppercase;
  color:var(--ink-3); display:block; margin-bottom:10px; }
.out__kicker em{ color:var(--violet); text-transform:none; letter-spacing:0; font-size:11px; }
.risk{ display:flex; align-items:center; gap:10px; }
.risk__dot{ width:13px; height:13px; border-radius:50%; background:var(--ink-4);
  transition:background .5s var(--ease), box-shadow .5s var(--ease); }
.risk__label{ font-size:18px; font-weight:700; color:var(--ink); flex:1; }
.risk__score{ font-family:var(--mono); font-size:13px; color:var(--ink-2); }
.risk__bar{ height:6px; border-radius:4px; background:var(--bg-3); overflow:hidden; margin-top:11px; }
.risk__bar-fill{ display:block; height:100%; width:0%; border-radius:4px; background:var(--ink-4);
  transition:width 1s var(--ease), background .5s var(--ease); }

.out--route{ margin-top:12px; }
.reco{ display:flex; align-items:center; gap:10px; padding:12px 14px; border-radius:12px;
  background:var(--bg-1); border:1px solid var(--line); transition:border-color .5s var(--ease); }
.reco__name{ font-size:16px; font-weight:700; color:var(--ink); }
.reco__name--pending{ color:var(--ink-3); font-weight:600; font-style:italic; }
.reco__why{ font-size:12px; line-height:1.5; color:var(--ink-3); margin:10px 2px 0; }

/* ================= FOOTER ================= */
.foot{ display:flex; flex-wrap:wrap; gap:6px 12px; justify-content:center;
  padding:18px clamp(16px,3vw,40px) 26px; color:var(--ink-4); font-size:12px; text-align:center; }
.foot strong{ color:var(--ink-3); }
.foot__sep{ color:var(--line); }

/* =====================================================================
 *  STACKED FALLBACK (built by flow.js; shown only on narrow screens)
 * ===================================================================== */
.stack{ display:none; flex-direction:column; align-items:stretch; gap:0; padding:18px 14px; }
.stack__grp{ display:flex; flex-direction:column; gap:10px; }
.stack__cap{ font-family:var(--mono); font-size:10px; letter-spacing:.16em; text-transform:uppercase;
  color:var(--ink-3); }
.stack__cap .stack__n{ color:var(--blue); }
.stack__card{
  position:relative; padding:12px 14px; border-radius:13px; padding-left:16px;
  background:linear-gradient(160deg,var(--bg-3),var(--bg-2)); border:1px solid var(--line);
}
.stack__card::before{ content:""; position:absolute; left:0; top:12px; bottom:12px; width:3px;
  border-radius:3px; background:var(--accent,var(--blue)); }
.stack__card b{ display:block; font-size:14px; color:var(--ink); }
.stack__card span{ display:block; font-size:12px; line-height:1.4; color:var(--ink-3); margin-top:2px; }
.stack__card--hub{ border-color:var(--blue); box-shadow:0 8px 30px -16px var(--blue); }
.stack__card.is-priority{ box-shadow:0 0 0 1px var(--accent), 0 8px 28px -14px var(--accent); }
.stack__badge{ display:inline-block; margin-top:7px; font-family:var(--mono); font-size:9px;
  letter-spacing:.12em; text-transform:uppercase; color:var(--bg-0); background:var(--accent);
  padding:2px 7px; border-radius:5px; font-style:normal; }
/* connector with one descending pip — the simplified "flow" on mobile */
.stack__conn{ position:relative; height:34px; margin:4px auto; width:2px;
  background:linear-gradient(var(--line),var(--blue),var(--line)); }
.stack__pip{ position:absolute; left:50%; width:8px; height:8px; margin-left:-4px; border-radius:50%;
  background:var(--blue); box-shadow:0 0 10px var(--blue); top:0;
  animation:pip 1.8s var(--ease) infinite; }
@keyframes pip{ 0%{ top:0; opacity:0; } 15%{ opacity:1; } 85%{ opacity:1; } 100%{ top:100%; opacity:0; } }

@media (max-width:860px){
  #flowSvg{ display:none; }
  .stack{ display:flex; }
  .legend{ display:none; }
}
@media (prefers-reduced-motion:reduce){ .stack__pip{ animation:none; opacity:.9; top:46%; } }
body.motion-off .stack__pip{ animation:none; opacity:.9; top:46%; }

/* =====================================================================
 *  RESPONSIVE — stack the flow + AI board on narrow screens
 * ===================================================================== */
@media (max-width:860px){
  .topbar__tag{ display:none; }
  .flow-cols{ display:none; }
  .ai{ grid-template-columns:1fr; gap:16px; }
  .ai__engine{ order:0; }
  .engine{ width:160px; }
  .scenarios{ grid-template-columns:1fr; }
}
@media (max-width:560px){
  .topbar{ flex-wrap:wrap; }
  .seg__btn{ padding:8px 14px; }
}

/* =====================================================================
 *  REDUCED MOTION — honor OS setting and the in-app Motion toggle.
 *  Tokens are placed statically by JS; here we kill incidental motion.
 * ===================================================================== */
@media (prefers-reduced-motion:reduce){
  .engine__ring{ animation:none; }
  .ctl__dot{ animation:none; }
  *{ scroll-behavior:auto; }
}
body.motion-off .engine__ring{ animation:none; }
body.motion-off .ctl__dot{ animation:none; }

/* focus visibility */
:focus-visible{ outline:2px solid var(--blue-bright); outline-offset:3px; border-radius:8px; }