/* Copyright 2026 SZL Holdings — SPDX-License-Identifier: Apache-2.0
   yarqa Space — cinematic-dark scientific, mobile/tablet first, 0 overflow. */
:root{
  --bg:#04060c; --bg2:#0a0f1e; --surface:rgba(13,19,34,0.78); --surface2:rgba(20,28,50,0.92);
  --border:rgba(120,150,210,0.16); --border-s:rgba(150,180,240,0.34);
  --text:#eef2ff; --muted:#9aa8cc; --dim:#5d6a8f;
  --accent:#40e0c5; --accent2:#ffb13f; --warn:#ff6b8f; --ok:#5ad1ff; --proj:#c89bff;
  --radius:15px; --blur:18px;
  --fd:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Inter,Roboto,sans-serif;
  --fm:ui-monospace,"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;
  --shadow:0 18px 56px rgba(0,0,0,0.5);
  --topbar-h:58px; --tabs-h:62px;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{background:radial-gradient(130% 100% at 50% -10%,#0a1428 0%,var(--bg) 60%);
  color:var(--text);font-family:var(--fd);-webkit-font-smoothing:antialiased;
  letter-spacing:.005em;overflow:hidden}
code{font-family:var(--fm)}
.muted{color:var(--muted)} .dim{color:var(--dim)}

/* loader */
#loader{position:fixed;inset:0;z-index:90;display:flex;flex-direction:column;align-items:center;
  justify-content:center;background:radial-gradient(circle at 50% 40%,#0c1430,#05070d 70%);transition:opacity .5s}
#loader.hidden{opacity:0;pointer-events:none}
#loader .ring{width:54px;height:54px;border-radius:50%;border:2px solid rgba(64,224,197,.22);
  border-top-color:var(--accent);animation:spin 1s linear infinite}
#loader .lt{margin-top:16px;font-family:var(--fm);font-size:11px;letter-spacing:.16em;
  color:var(--muted);text-transform:uppercase}
@keyframes spin{to{transform:rotate(360deg)}}

/* topbar */
.topbar{position:fixed;top:0;left:0;right:0;height:var(--topbar-h);z-index:40;display:flex;
  align-items:center;gap:12px;padding:0 16px;background:linear-gradient(180deg,rgba(6,10,20,.92),rgba(6,10,20,.66));
  backdrop-filter:blur(var(--blur));border-bottom:1px solid var(--border)}
.brand{display:flex;align-items:center;gap:10px;color:var(--accent);text-decoration:none}
.brand .logo{flex:none}
.brand-txt{display:flex;flex-direction:column;line-height:1.05}
.brand-txt b{font-size:16px;color:var(--text);letter-spacing:-.01em}
.brand-txt i{font-style:normal;font-size:10px;color:var(--dim);letter-spacing:.04em}
.tier-pill{margin-left:6px;font-family:var(--fm);font-size:10px;letter-spacing:.04em;color:var(--accent2);
  border:1px solid rgba(255,177,63,.34);background:rgba(255,177,63,.08);padding:5px 10px;border-radius:99px;
  display:flex;align-items:center;gap:7px}
.tier-pill .dot{width:6px;height:6px;border-radius:50%;background:var(--accent2)}
.health{margin-left:auto;display:flex;align-items:center;gap:8px;font-family:var(--fm);font-size:10.5px;
  color:var(--muted);border:1px solid var(--border);background:var(--surface);padding:6px 11px;border-radius:99px}
.hdot{width:8px;height:8px;border-radius:50%;background:var(--dim);box-shadow:0 0 0 0 rgba(90,209,255,.5)}
.hdot.ok{background:var(--ok);animation:pulse 2.4s infinite}
.hdot.bad{background:var(--warn)}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(90,209,255,.45)}70%{box-shadow:0 0 0 7px rgba(90,209,255,0)}100%{box-shadow:0 0 0 0 rgba(90,209,255,0)}}

/* tabs (desktop/tablet) */
.tabs{position:fixed;top:var(--topbar-h);left:0;right:0;height:var(--tabs-h);z-index:35;display:flex;gap:6px;
  padding:9px 14px;overflow-x:auto;background:rgba(6,10,20,.6);backdrop-filter:blur(var(--blur));
  border-bottom:1px solid var(--border);scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{flex:none;display:flex;flex-direction:column;align-items:flex-start;gap:1px;cursor:pointer;
  font-family:var(--fd);font-size:12.5px;font-weight:600;color:var(--muted);background:transparent;
  border:1px solid transparent;border-radius:11px;padding:7px 13px;transition:.18s}
.tab small{font-weight:500;font-size:9.5px;color:var(--dim);letter-spacing:.02em}
.tab .ti{display:none}
.tab:hover{color:var(--text);background:var(--surface)}
.tab.is-active{color:var(--text);background:var(--surface2);border-color:var(--border-s)}
.tab.is-active small{color:var(--accent)}

/* main + panels */
#main{position:fixed;top:calc(var(--topbar-h) + var(--tabs-h));left:0;right:0;bottom:0;overflow:hidden}
.panel{position:absolute;inset:0;display:none;overflow-y:auto;-webkit-overflow-scrolling:touch}
.panel.is-active{display:block}
.content{max-width:920px;margin:0 auto;padding:26px 20px 80px}
h2{font-size:21px;font-weight:650;letter-spacing:-.01em;display:flex;align-items:center;gap:11px;flex-wrap:wrap}
h2 .muted{font-size:13px;font-weight:500}
.lede{margin:12px 0 18px;color:var(--muted);font-size:14px;line-height:1.55;max-width:68ch}
.lede code,.honest code{font-family:var(--fm);font-size:12.5px;color:var(--accent);background:rgba(64,224,197,.08);
  padding:1px 5px;border-radius:5px}
.honest{margin-top:16px;font-size:12px;color:var(--dim);line-height:1.5;border-left:2px solid rgba(255,107,143,.4);
  padding-left:11px}
.proj{color:var(--proj)}

/* badges + chips */
.badge{font-family:var(--fm);font-size:10px;font-weight:700;letter-spacing:.08em;padding:4px 9px;border-radius:7px;
  border:1px solid var(--dim);color:var(--muted);background:var(--surface);text-transform:uppercase}
.badge.live{color:#04120e;background:var(--accent);border-color:var(--accent);box-shadow:0 0 14px rgba(64,224,197,.4)}
.badge.sample{color:var(--accent2);background:rgba(255,177,63,.1);border-color:rgba(255,177,63,.5)}
.chip{font-family:var(--fm);font-size:11px;color:var(--muted);border:1px solid var(--border);
  background:var(--surface);padding:5px 10px;border-radius:8px}

/* flow tab split */
#panel-flow{display:none}
#panel-flow.is-active{display:grid;grid-template-columns:1fr 340px}
.canvas-wrap{position:relative;min-width:0;background:radial-gradient(120% 100% at 50% 30%,#0a1226,#05070f)}
#scene{width:100%;height:100%;display:block;touch-action:none}
.canvas-overlay{position:absolute;top:14px;left:14px;display:flex;gap:8px;align-items:center}
.side{border-left:1px solid var(--border);background:var(--surface);backdrop-filter:blur(var(--blur));
  padding:22px 20px 60px;overflow-y:auto}
.side h2{font-size:18px}
.ctl{margin:16px 0}
.ctl.inline{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.ctl label{display:flex;justify-content:space-between;font-family:var(--fm);font-size:11px;color:var(--muted);
  letter-spacing:.04em;margin-bottom:7px}
.ctl.inline label{margin-bottom:0;gap:8px}
.ctl output{color:var(--accent)}
input[type=range]{width:100%;accent-color:var(--accent);height:4px}
.ctl.inline input[type=range]{width:160px}
.receipt{margin:18px 0 6px;padding:12px;border:1px solid var(--border);border-radius:11px;background:var(--bg2)}
.rlabel{display:block;font-family:var(--fm);font-size:9px;letter-spacing:.18em;text-transform:uppercase;color:var(--dim);margin-bottom:6px}
.receipt code{font-size:10.5px;color:var(--accent2);word-break:break-all;line-height:1.5}
.legend{margin-top:16px;display:flex;flex-wrap:wrap;gap:7px}
.legend .lg{display:flex;align-items:center;gap:6px;font-family:var(--fm);font-size:10.5px;color:var(--muted);
  border:1px solid var(--border);border-radius:7px;padding:3px 8px}
.legend .sw{width:11px;height:11px;border-radius:3px}

/* buttons + rows */
.row{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:8px 0 18px}
.btn{font-family:var(--fd);font-size:13px;font-weight:600;color:var(--text);background:var(--surface2);
  border:1px solid var(--border-s);border-radius:10px;padding:9px 15px;cursor:pointer;transition:.16s}
.btn:hover{border-color:var(--accent);background:rgba(64,224,197,.1)}
.btn.primary{background:var(--accent);color:#04120e;border-color:var(--accent)}
.btn.primary:hover{filter:brightness(1.08)}
.btn.danger{color:var(--warn);border-color:rgba(255,107,143,.45)}
.btn.danger:hover{background:rgba(255,107,143,.12)}
.verdict{font-family:var(--fm);font-size:12px;padding:6px 12px;border-radius:8px;border:1px solid var(--border);color:var(--muted)}
.verdict.ok{color:#04120e;background:var(--accent);border-color:var(--accent)}
.verdict.bad{color:var(--warn);background:rgba(255,107,143,.12);border-color:rgba(255,107,143,.5)}

/* loop diagram */
.loop-diagram{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:6px 0 20px}
.loop-diagram .node{font-family:var(--fm);font-size:12px;color:var(--accent);border:1px solid var(--border-s);
  border-radius:9px;padding:8px 14px;background:var(--surface)}
.loop-diagram .arr{color:var(--dim)}

/* agentic log */
.log{display:flex;flex-direction:column;gap:8px;margin-top:6px}
.step{border:1px solid var(--border);border-radius:11px;background:var(--surface);padding:12px 14px;
  display:grid;grid-template-columns:auto 1fr auto;gap:10px;align-items:center;animation:slidein .3s ease}
@keyframes slidein{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.step .sidx{font-family:var(--fm);font-size:10px;color:var(--dim)}
.step .smeta{font-family:var(--fm);font-size:11px;color:var(--muted);line-height:1.6;word-break:break-word}
.step .smeta b{color:var(--text)}
.step .dec{font-family:var(--fm);font-size:10px;font-weight:700;padding:4px 9px;border-radius:7px}
.dec.ALLOW{color:#04120e;background:var(--accent)}
.dec.DENY{color:var(--warn);background:rgba(255,107,143,.14);border:1px solid rgba(255,107,143,.5)}

/* chain */
.chain{display:flex;flex-direction:column;gap:0;margin-top:4px}
.link{border:1px solid var(--border);border-radius:11px;background:var(--surface);padding:12px 14px;position:relative}
.link + .link{margin-top:22px}
.link + .link::before{content:"⛓";position:absolute;top:-20px;left:20px;color:var(--dim);font-size:13px}
.link.broken{border-color:rgba(255,107,143,.6);background:rgba(255,107,143,.07)}
.link .lh{display:flex;justify-content:space-between;align-items:center;gap:8px;flex-wrap:wrap}
.link .lh b{font-family:var(--fm);font-size:11px;color:var(--text)}
.link .ld{font-family:var(--fm);font-size:10px;color:var(--muted);word-break:break-all;margin-top:7px;line-height:1.5}
.link .prevd{color:var(--dim)}
.link .okdot{width:9px;height:9px;border-radius:50%;background:var(--accent)}
.link.broken .okdot{background:var(--warn)}

/* forecast */
#fcChart{width:100%;max-width:880px;border:1px solid var(--border);border-radius:13px;background:var(--bg2);margin-top:6px}
.fc-legend{display:flex;gap:18px;align-items:center;margin:12px 0;font-family:var(--fm);font-size:11px;color:var(--muted)}
.fc-legend .sw{display:inline-block;width:20px;height:3px;border-radius:2px;margin-right:6px;vertical-align:middle}
.fc-legend .sw.data{background:var(--accent)} .fc-legend .sw.proj{background:var(--proj)}
.fc-table{width:100%;border-collapse:collapse;margin-top:8px;font-family:var(--fm);font-size:11.5px}
.fc-table th,.fc-table td{text-align:left;padding:7px 10px;border-bottom:1px solid var(--border);color:var(--muted)}
.fc-table th{color:var(--dim);font-weight:600;letter-spacing:.05em}
.fc-table tr.proj td{color:var(--proj)}

/* feeds */
.feeds{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:14px;margin-top:6px}
.feed{border:1px solid var(--border);border-radius:13px;background:var(--surface);padding:16px}
.feed .fhead{display:flex;justify-content:space-between;align-items:flex-start;gap:8px}
.feed h3{font-size:14px;font-weight:620;line-height:1.3}
.feed .fdetail{font-family:var(--fm);font-size:11.5px;color:var(--text);margin:12px 0 8px;line-height:1.5}
.feed .fmeta{font-size:11px;color:var(--dim);line-height:1.55}
.feed .fmeta a{color:var(--accent);word-break:break-all}
.feed .ferr{font-family:var(--fm);font-size:10px;color:var(--warn);margin-top:6px}

/* FAB + bottom sheet (mobile) */
.fab{display:none;position:fixed;right:18px;bottom:calc(18px + env(safe-area-inset-bottom));z-index:50;width:54px;height:54px;
  border-radius:50%;border:1px solid var(--border-s);background:var(--accent);color:#04120e;font-size:22px;
  box-shadow:var(--shadow);cursor:pointer}
.sheet-backdrop{position:fixed;inset:0;z-index:55;background:rgba(2,4,9,.6);backdrop-filter:blur(3px)}
.sheet{position:fixed;left:0;right:0;bottom:0;z-index:60;background:var(--surface2);backdrop-filter:blur(var(--blur));
  border-top:1px solid var(--border-s);border-radius:18px 18px 0 0;padding:10px 14px calc(20px + env(safe-area-inset-bottom));
  box-shadow:var(--shadow);animation:sheetup .26s ease}
@keyframes sheetup{from{transform:translateY(100%)}to{transform:none}}
.sheet-grip{width:42px;height:4px;border-radius:99px;background:var(--dim);margin:4px auto 12px}
.sheet-item{display:flex;align-items:center;gap:12px;width:100%;text-align:left;font-family:var(--fd);font-size:15px;
  font-weight:600;color:var(--text);background:transparent;border:none;border-radius:11px;padding:13px 12px;cursor:pointer}
.sheet-item small{color:var(--dim);font-weight:500;font-size:11px;margin-left:auto}
.sheet-item .ti{color:var(--accent);font-size:16px}
.sheet-item:active,.sheet-item.is-active{background:var(--surface)}

/* ===== responsive ===== */
@media (max-width:860px){
  :root{--tabs-h:0px}
  .tabs{display:none}
  .tier-pill{display:none}
  #panel-flow.is-active{grid-template-columns:1fr;grid-template-rows:46vh auto}
  .side{border-left:none;border-top:1px solid var(--border)}
  .fab{display:flex;align-items:center;justify-content:center}
  .content{padding:20px 16px 96px}
  .feeds{grid-template-columns:1fr}
  .brand-txt i{display:none}
  h2{font-size:18px}
}
@media (min-width:861px){ .fab,.sheet,.sheet-backdrop{display:none!important} }

/* reduced motion */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  #loader .ring{animation:none;border-top-color:var(--accent)}
  .hdot.ok{animation:none}
}

/* =====================================================================
   ADDITIVE PRESENTATION POLISH (v-polish) — motion, hover, focus a11y,
   mobile, loading/empty-state, tasteful background. Copy untouched.
   ===================================================================== */

/* --- tasteful ambient background (behind everything, non-interactive) --- */
body::before{
  content:"";position:fixed;inset:-20% -10% -10%;z-index:-1;pointer-events:none;
  background:
    radial-gradient(42% 40% at 16% 14%,rgba(64,224,197,.10),transparent 60%),
    radial-gradient(46% 44% at 84% 8%,rgba(255,177,63,.075),transparent 62%),
    radial-gradient(60% 52% at 50% 108%,rgba(200,155,255,.07),transparent 64%);
  filter:blur(14px);opacity:.9;
  animation:aurora 26s ease-in-out infinite alternate;
}
@keyframes aurora{
  0%{transform:translate3d(0,0,0) scale(1)}
  50%{transform:translate3d(0,-1.4%,0) scale(1.03)}
  100%{transform:translate3d(0,1.2%,0) scale(1.015)}
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:radial-gradient(120% 90% at 50% -12%,transparent 58%,rgba(2,4,9,.5) 100%);
}

/* --- crisper motion curves on interactive chrome --- */
.tab{transition:color .18s ease,background .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease}
.tab:hover{transform:translateY(-1px)}
.tab.is-active{box-shadow:inset 0 -2px 0 rgba(64,224,197,.55),0 6px 18px rgba(0,0,0,.28)}
.btn{transition:color .16s ease,background .16s ease,border-color .16s ease,transform .16s ease,box-shadow .16s ease,filter .16s ease}
.btn:hover{transform:translateY(-1px);box-shadow:0 8px 22px rgba(0,0,0,.32)}
.btn:active{transform:translateY(0) scale(.98)}
.btn.primary:hover{box-shadow:0 10px 26px rgba(64,224,197,.28)}
.btn.danger:hover{box-shadow:0 10px 26px rgba(255,107,143,.22)}

/* --- brand + pills micro-interactions --- */
.brand .logo{transition:transform .5s cubic-bezier(.2,.8,.2,1),filter .3s ease}
.brand:hover .logo{transform:rotate(-8deg) scale(1.06);filter:drop-shadow(0 0 8px rgba(64,224,197,.5))}
.health,.tier-pill{transition:border-color .2s ease,background .2s ease,transform .2s ease}
.health:hover,.tier-pill:hover{border-color:var(--border-s);transform:translateY(-1px)}
.chip,.badge,.verdict{transition:border-color .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease}

/* --- card & block hover elevation --- */
.feed,.link,.step,.receipt,.loop-diagram .node{
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease,background .2s ease}
.feed:hover{transform:translateY(-3px);border-color:var(--border-s);box-shadow:0 14px 34px rgba(0,0,0,.38)}
.link:hover{border-color:var(--border-s);box-shadow:0 10px 26px rgba(0,0,0,.3)}
.link.broken:hover{border-color:rgba(255,107,143,.7);box-shadow:0 10px 26px rgba(255,107,143,.16)}
.step:hover{border-color:var(--border-s)}
.receipt:hover{border-color:var(--border-s)}
.loop-diagram .node:hover{transform:translateY(-2px);border-color:var(--accent)}
.feed .fmeta a{transition:color .15s ease,text-shadow .15s ease}
.feed .fmeta a:hover{color:var(--accent2);text-shadow:0 0 10px rgba(255,177,63,.35)}

/* --- panel entrance animation --- */
.panel.is-active .content,
#panel-flow.is-active .side,
#panel-flow.is-active .canvas-wrap{animation:panelIn .42s cubic-bezier(.2,.8,.2,1) both}
#panel-flow.is-active .side{animation-delay:.06s}
@keyframes panelIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}

/* --- accessible focus-visible rings (keyboard users) --- */
a:focus-visible,button:focus-visible,input:focus-visible,
.tab:focus-visible,.btn:focus-visible,.sheet-item:focus-visible,.fab:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;border-radius:10px}
input[type=range]:focus-visible{outline:2px solid var(--accent);outline-offset:4px}

/* --- richer range slider thumbs --- */
input[type=range]{cursor:pointer}
input[type=range]::-webkit-slider-thumb{
  -webkit-appearance:none;appearance:none;width:16px;height:16px;border-radius:50%;
  background:var(--accent);border:2px solid #04120e;box-shadow:0 0 0 3px rgba(64,224,197,.18);
  transition:box-shadow .15s ease,transform .15s ease}
input[type=range]:hover::-webkit-slider-thumb{box-shadow:0 0 0 5px rgba(64,224,197,.22);transform:scale(1.08)}
input[type=range]::-moz-range-thumb{
  width:16px;height:16px;border-radius:50%;background:var(--accent);border:2px solid #04120e;
  box-shadow:0 0 0 3px rgba(64,224,197,.18)}

/* --- loader text shimmer --- */
#loader .lt{
  background:linear-gradient(90deg,var(--muted) 0%,var(--accent) 50%,var(--muted) 100%);
  background-size:200% 100%;-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;
  animation:shimmer 2.6s linear infinite}
@keyframes shimmer{to{background-position:-200% 0}}

/* --- typographic rhythm refinements --- */
h2{scroll-margin-top:var(--topbar-h)}
.lede{text-wrap:pretty}
.feed h3{text-wrap:balance}

/* --- prettier scrollbars in scrollable panels --- */
.panel,.side{scrollbar-width:thin;scrollbar-color:var(--border-s) transparent}
.panel::-webkit-scrollbar,.side::-webkit-scrollbar{width:9px;height:9px}
.panel::-webkit-scrollbar-thumb,.side::-webkit-scrollbar-thumb{
  background:var(--border-s);border-radius:99px;border:2px solid transparent;background-clip:content-box}
.panel::-webkit-scrollbar-thumb:hover,.side::-webkit-scrollbar-thumb:hover{background:var(--accent)}
.panel::-webkit-scrollbar-track,.side::-webkit-scrollbar-track{background:transparent}

/* --- loading / empty-state styling for JS-populated containers --- */
.feeds:empty,.chain:empty,.log:empty,.legend:empty{
  position:relative;min-height:120px;border:1px dashed var(--border);border-radius:13px;
  background:linear-gradient(100deg,var(--surface),transparent 40%,var(--surface) 80%);
  background-size:220% 100%;animation:sweep 1.5s ease-in-out infinite}
.legend:empty{min-height:34px;border-radius:9px}
@keyframes sweep{to{background-position:-220% 0}}

/* --- fab pulse affordance on mobile --- */
.fab{transition:transform .18s ease,box-shadow .18s ease,filter .18s ease}
.fab:hover,.fab:active{transform:translateY(-2px) scale(1.04);filter:brightness(1.06)}

/* --- honor reduced motion for all additions --- */
@media (prefers-reduced-motion:reduce){
  body::before{animation:none!important}
  .panel.is-active .content,
  #panel-flow.is-active .side,
  #panel-flow.is-active .canvas-wrap{animation:none!important;opacity:1;transform:none}
  .feeds:empty,.chain:empty,.log:empty,.legend:empty{animation:none!important}
  #loader .lt{animation:none!important;background:none;color:var(--muted);-webkit-text-fill-color:currentColor}
}