/* =====================================================================
   GRAPH QUERY AGENT — design system
   Drop-in replacement for colors_and_type.css + console-system.css.
   Same CSS-variable names and same oc-* class API, restyled to a modern
   white / black / bright-blue aesthetic.
   Load instead of the two locked files:
     <link rel="stylesheet" href="assets/console-system.css">
   The locked system is untouched; swap the link to switch directions.
   ===================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Roboto:wght@400;500;700&family=Roboto+Mono:wght@400;500&display=swap');

/* ---------- foundation tokens ------------------ */
:root{
  /* paper / surfaces — light, flat */
  --paper:        #F4F5F7;
  --paper-warm:   #FFFFFF;
  --card:         #FFFFFF;
  --card-sunk:    #F4F5F7;

  /* ink (text + structure) */
  --ink:          #0A0B0D;
  --ink-soft:     #535353;
  --ink-faint:    #8D8D8D;
  --ink-line:     #E4E5E8;

  /* marker / destructive */
  --marker:       #E5484D;
  --marker-soft:  #FDE9E9;

  /* accent palette — bright blue accent */
  --accent-cyan:        #1499FF;
  --accent-cyan-soft:   #E8F4FF;
  --accent-violet:      #7B6BE0;
  --accent-violet-soft: #E9E6FB;
  --accent-green:       #19A05F;
  --accent-green-soft:  #E6F6EE;
  --accent-pink:        #D86A8C;
  --accent-pink-soft:   #F6DDE6;
  --accent-yellow:      #E8973A;
  --accent-yellow-soft: #FDF0DD;
  --accent-doc:         #8D8D8D;
  --accent-doc-soft:    #ECECEF;

  --semantic-info:    var(--accent-cyan);
  --semantic-success: var(--accent-green);
  --semantic-warn:    var(--accent-yellow);
  --semantic-danger:  var(--marker);
  --link:             #0C6FC2;
  --link-hover:       #0A3A63;
  --focus-ring:       rgba(20,153,255,0.40);

  /* type */
  --font-display:  'Space Grotesk', -apple-system, system-ui, sans-serif;
  --font-body:     'Roboto', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --font-mono:     'Roboto Mono', ui-monospace, 'SF Mono', Menlo, monospace;

  --fs-xs:11px; --fs-sm:12.5px; --fs-md:14px; --fs-lg:16px; --fs-xl:18px; --fs-2xl:22px;
  --fs-display-sm:28px; --fs-display-md:36px; --fs-display-lg:48px; --fs-display-xl:64px; --fs-display-2xl:84px;
  --fs-mono-xs:10px; --fs-mono-sm:11px; --fs-mono-md:12.5px;
  --lh-tight:1.1; --lh-snug:1.25; --lh-normal:1.5; --lh-loose:1.7;
  --tracking-eyebrow:0.14em; --tracking-tight:-0.01em;

  /* spacing */
  --space-0:0; --space-1:4px; --space-2:8px; --space-3:12px; --space-4:16px; --space-5:20px;
  --space-6:24px; --space-7:32px; --space-8:40px; --space-9:48px; --space-10:64px; --space-11:80px; --space-12:96px;
  --container-max:1480px; --gutter:28px;

  /* radii — modern, rounder, NOT wobbly */
  --radius-sm:8px; --radius-md:10px; --radius-lg:12px; --radius-xl:16px; --radius-pill:999px; --radius-circle:50%;
  --radius-clean-sm:8px; --radius-clean-md:10px; --radius-clean-lg:12px;

  /* borders */
  --border-w:1px; --border-w-thin:1px;
  --border:1px solid var(--ink-line);
  --border-thin:1px solid var(--ink-line);
  --border-dashed:1px dashed var(--ink-line);
  --border-marker:1px dashed var(--marker);

  /* shadows — soft, Material-ish (no offset "paper" shadows) */
  --shadow-rest:  0 1px 2px rgba(12,18,28,.05), 0 6px 20px rgba(12,18,28,.06);
  --shadow-hover: 0 2px 6px rgba(12,18,28,.07), 0 12px 30px rgba(12,18,28,.10);
  --shadow-press: 0 1px 2px rgba(12,18,28,.05);
  --shadow-lift:  0 12px 36px rgba(12,18,28,.12);

  /* motion */
  --ease:cubic-bezier(.2,.7,.2,1); --ease-in:cubic-bezier(.4,0,1,1);
  --dur-fast:180ms; --dur-mid:240ms; --dur-slow:320ms;

  /* z */
  --z-base:1; --z-sticky:50; --z-popover:100; --z-modal:200; --z-toast:300;
}

.clean,.clean *{ --radius-sm:var(--radius-clean-sm); --radius-md:var(--radius-clean-md); --radius-lg:var(--radius-clean-lg); --radius-xl:var(--radius-clean-lg); }

/* ---------- base reset + flat body ---------- */
html,body{ margin:0; padding:0; }
*,*::before,*::after{ box-sizing:border-box; }
body{
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-md);
  line-height: var(--lh-normal);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

/* ---------- type ---------- */
h1,.h1{ font-family:var(--font-display); font-size:var(--fs-display-lg); line-height:var(--lh-tight); font-weight:700; margin:0 0 var(--space-4); letter-spacing:-.01em; }
h2,.h2{ font-family:var(--font-display); font-size:var(--fs-display-md); line-height:var(--lh-tight); font-weight:700; margin:0 0 var(--space-3); letter-spacing:-.01em; }
h3,.h3{ font-family:var(--font-display); font-size:var(--fs-2xl); line-height:var(--lh-snug); font-weight:600; margin:0 0 var(--space-3); }
h4,.h4{ font-family:var(--font-body); font-size:var(--fs-xl); line-height:var(--lh-snug); font-weight:700; margin:0 0 var(--space-2); }
h5,.h5{ font-family:var(--font-body); font-size:var(--fs-lg); line-height:var(--lh-snug); font-weight:500; margin:0 0 var(--space-2); }
p{ margin:0 0 var(--space-3); text-wrap:pretty; }
.eyebrow{ font-family:var(--font-mono); font-size:var(--fs-mono-sm); letter-spacing:var(--tracking-eyebrow); text-transform:uppercase; color:var(--ink-faint); }
.hand{ font-family:var(--font-display); font-weight:700; }
.mono{ font-family:var(--font-mono); font-size:var(--fs-mono-md); }
code,pre,kbd,samp{ font-family:var(--font-mono); font-size:.92em; }
a{ color:var(--link); text-decoration:none; transition:color var(--dur-fast) var(--ease); }
a:hover{ color:var(--link-hover); text-decoration:underline; }
hr{ border:0; border-top:1px solid var(--ink-line); margin:var(--space-7) 0; }
::selection{ background:var(--accent-cyan-soft); color:var(--ink); }
:focus-visible{ outline:2px solid var(--focus-ring); outline-offset:2px; border-radius:4px; }

/* =====================================================================
   .oc ROOT — status/accent aliases (same names as locked system)
   ===================================================================== */
.oc{
  --read:var(--accent-green); --read-soft:var(--accent-green-soft); --read-ink:#107A47;
  --write:#E8973A; --write-soft:var(--accent-yellow-soft); --write-ink:#B56A10;
  --err:var(--marker); --err-soft:var(--marker-soft);
  --accent:var(--accent-cyan); --hair:var(--ink-line);
  --r-sm:8px; --r-md:10px; --r-lg:12px;
  font-family:var(--font-body); color:var(--ink); background:var(--paper); width:100%; min-height:100%;
}

/* ---------- 1 · APP SHELL ---------- */
.oc-app{ display:grid; grid-template-columns:248px 1fr; min-height:100vh; }

/* black rail — dark nav/footer with a faint network motif */
.oc-rail{
  position:sticky; top:0; height:100vh; padding:22px 16px; display:flex; flex-direction:column; gap:4px;
  background:#0A0B0D; border-right:none; color:#fff; overflow:hidden;
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='220' height='220' viewBox='0 0 220 220'><g stroke='%231499ff' stroke-width='1' opacity='0.45'><line x1='50' y1='70' x2='130' y2='38'/><line x1='130' y1='38' x2='185' y2='95'/><line x1='50' y1='70' x2='85' y2='150'/><line x1='85' y1='150' x2='175' y2='172'/><line x1='185' y1='95' x2='175' y2='172'/></g><g fill='%231499ff' opacity='0.55'><circle cx='50' cy='70' r='5'/><circle cx='130' cy='38' r='6'/><circle cx='185' cy='95' r='4'/><circle cx='85' cy='150' r='5'/><circle cx='175' cy='172' r='6'/></g></svg>");
  background-repeat:no-repeat; background-position:right -50px top -40px;
}
.oc-brand{ display:flex; align-items:center; gap:11px; margin-bottom:18px; padding:4px 6px; position:relative; z-index:1; text-decoration:none; cursor:pointer; transition:opacity .15s ease; }
.oc-brand:hover{ opacity:.82; }
.oc-brandmark{ width:40px; height:40px; border-radius:11px; background:var(--accent-cyan); display:grid; place-items:center; color:#fff; font-size:24px; flex:none; }
.oc-brand img{ width:30px; height:30px; }
.oc-brand .wm{ font-family:var(--font-display); font-weight:700; font-size:18px; line-height:1; color:#fff; }
.oc-brand .wm small{ display:block; font-family:var(--font-mono); font-size:9px; letter-spacing:.18em; text-transform:uppercase; color:#7f8794; font-weight:400; margin-top:4px; }
.oc-navgrp{ font-family:var(--font-mono); font-size:9.5px; letter-spacing:.16em; text-transform:uppercase; color:#6b7280; margin:18px 8px 7px; position:relative; z-index:1; }
.oc-nav{ display:flex; align-items:center; gap:11px; padding:9px 11px; border-radius:var(--r-md); font-size:13.5px; font-weight:500; color:#c5cad3; cursor:pointer; border:1.5px solid transparent; text-decoration:none; position:relative; z-index:1; transition:background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease); }
.oc-nav i{ font-size:17px; }
.oc-nav:hover{ background:rgba(255,255,255,.06); color:#fff; }
.oc-nav.on{ background:var(--accent-cyan); border-color:var(--accent-cyan); color:#fff; font-weight:500; box-shadow:none; }
.oc-rail-foot{ margin-top:auto; position:relative; z-index:1; padding:14px 8px 2px; border:none; border-top:1px solid rgba(255,255,255,.1); border-radius:0; font-size:11.5px; line-height:1.5; color:#7f8794; }

.oc-main{ display:flex; flex-direction:column; min-width:0; }

/* top bar — white */
.oc-top{ display:flex; align-items:center; gap:12px; padding:14px 28px; border-bottom:1px solid var(--hair); background:#fff; position:sticky; top:0; z-index:var(--z-sticky); backdrop-filter:none; flex-wrap:wrap; }
.oc-top .crumb{ font-family:var(--font-body); font-size:13px; color:var(--ink-faint); }
.oc-top .crumb b{ color:var(--ink); font-weight:600; }
.oc-spacer{ flex:1; }
.oc-meta{ font-family:var(--font-mono); font-size:11px; color:var(--ink-faint); background:transparent; border:none; border-radius:0; padding:0; white-space:nowrap; }
.oc-meta b{ color:var(--ink); font-weight:500; }

/* ---------- 2 · MASTER–DETAIL SPLIT ---------- */
.oc-split{ display:grid; grid-template-columns:minmax(380px,0.9fr) 1.1fr; gap:0; flex:1; min-height:0; }
.oc-work{ padding:26px 26px 40px; display:flex; flex-direction:column; gap:20px; overflow:auto; }
.oc-evidence{ background:#fff; border-left:1px solid var(--hair); display:flex; flex-direction:column; min-width:0; }
.oc-ev-head{ display:flex; align-items:center; gap:12px; padding:18px 24px; border-bottom:1px solid var(--hair); background:#fff; }
.oc-ev-title{ font-family:var(--font-display); font-weight:600; font-size:15px; }
.oc-ev-body{ padding:22px 24px 40px; overflow:auto; flex:1; }

@media (max-width:1080px){ .oc-split{ grid-template-columns:1fr; } .oc-evidence{ border-left:none; border-top:1px solid var(--hair); } }
@media (max-width:768px){ .oc-app{ grid-template-columns:1fr; } .oc-rail{ display:none; } }

/* ---------- 3 · PRIMITIVES ---------- */
.oc-eyebrow{ font-family:var(--font-mono); font-size:10.5px; letter-spacing:.14em; text-transform:uppercase; color:var(--ink-faint); display:block; }

/* buttons — pill */
.oc-btn{ display:inline-flex; align-items:center; gap:8px; padding:10px 18px; border-radius:999px; border:1.5px solid var(--ink-line); background:#fff; font-family:var(--font-body); font-size:13px; font-weight:500; color:var(--ink); cursor:pointer; box-shadow:none; white-space:nowrap; transition:all var(--dur-fast) var(--ease); }
.oc-btn:hover{ background:#fff; border-color:var(--ink-faint); box-shadow:var(--shadow-rest); }
.oc-btn.primary{ background:var(--accent-cyan); color:#fff; border-color:var(--accent-cyan); }
.oc-btn.primary:hover{ background:#0C6FC2; border-color:#0C6FC2; transform:translateY(-1px); }
.oc-btn.ghost{ border-color:transparent; background:transparent; box-shadow:none; color:var(--ink-soft); font-weight:500; }
.oc-btn.ghost:hover{ background:rgba(10,11,13,.05); border-color:transparent; }
.oc-btn.amber{ background:var(--write); color:#fff; border-color:var(--write); }
.oc-btn.amber:hover{ background:var(--write-ink); border-color:var(--write-ink); transform:translateY(-1px); }
.oc-btn:disabled{ opacity:.45; cursor:not-allowed; box-shadow:none; transform:none; }
.oc-btn.sm{ padding:7px 14px; font-size:12px; }

.oc-link{ color:var(--link); font-size:12.5px; font-weight:500; cursor:pointer; display:inline-flex; align-items:center; gap:6px; }
.oc-link:hover{ color:var(--link-hover); }

/* status pills */
.oc-pill{ display:inline-flex; align-items:center; gap:7px; font-family:var(--font-mono); font-size:10.5px; letter-spacing:.03em; text-transform:lowercase; border-radius:999px; padding:4px 11px; border:1px solid; white-space:nowrap; }
.oc-pill .dot{ width:7px; height:7px; border-radius:50%; background:currentColor; }
.oc-pill.read{ color:var(--read-ink); border-color:#BFE6D2; background:var(--read-soft); }
.oc-pill.write{ color:var(--write-ink); border-color:#F3D6A5; background:var(--write-soft); }
.oc-pill.err{ color:var(--err); border-color:#F3BCBE; background:var(--err-soft); }
.oc-pill.dim{ color:var(--ink-faint); border-color:var(--hair); background:var(--paper); }
.oc-pill.accent{ color:#0C6FC2; border-color:#BFE1FB; background:var(--accent-cyan-soft); }

.oc-ro{ font-family:var(--font-mono); font-size:9px; letter-spacing:.06em; text-transform:uppercase; color:var(--read-ink); border:1px solid #BFE6D2; background:var(--read-soft); border-radius:6px; padding:1px 6px; }
.oc-wo{ font-family:var(--font-mono); font-size:9px; letter-spacing:.06em; text-transform:uppercase; color:var(--write-ink); border:1px solid #F3D6A5; background:var(--write-soft); border-radius:6px; padding:1px 6px; }

/* cards — hairline + soft shadow */
.oc-card{ background:#fff; border:1px solid var(--ink-line); border-radius:var(--r-lg); box-shadow:var(--shadow-rest); }
.oc-card.soft{ border-color:var(--hair); box-shadow:none; }
.oc-h{ font-size:13px; font-weight:600; color:var(--ink); }
.oc-sub{ font-size:12.5px; color:var(--ink-soft); line-height:1.5; }
.oc-divider{ height:1px; background:var(--hair); }

/* request box — pill */
.oc-reqbox{ background:#fff; border:1.5px solid var(--ink-line); border-radius:999px; box-shadow:var(--shadow-rest); padding:8px 10px 8px 22px; display:flex; align-items:center; gap:12px; transition:border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease); }
.oc-reqbox:focus-within{ border-color:var(--accent-cyan); box-shadow:0 0 0 4px var(--accent-cyan-soft); }
.oc-reqbox .q{ flex:1; font-size:16px; font-weight:400; color:var(--ink); letter-spacing:0; border:none; outline:none; background:transparent; font-family:var(--font-body); min-width:0; }
.oc-reqbox .q::placeholder{ color:var(--ink-faint); }

/* ---------- 4 · INTENT + CONFIDENCE + CHIPS ---------- */
.oc-intent-name{ font-family:var(--font-mono); font-size:19px; font-weight:500; color:var(--ink); letter-spacing:-.01em; }
.oc-conf{ display:flex; align-items:center; gap:12px; }
.oc-conf .lbl{ font-family:var(--font-mono); font-size:10px; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-faint); }
.oc-conf .track{ height:7px; border:none; border-radius:999px; overflow:hidden; background:#ECECEF; flex:1; }
.oc-conf .fill{ height:100%; border-radius:999px; background:linear-gradient(90deg,var(--accent-cyan),#46B3FF); transition:width var(--dur-slow) var(--ease); }
.oc-conf .fill.low{ background:linear-gradient(90deg,var(--write),#F0B35E); }
.oc-conf .num{ font-family:var(--font-mono); font-size:14px; font-weight:500; color:#0C6FC2; }

.oc-chip{ display:inline-flex; align-items:center; gap:8px; font-family:var(--font-mono); font-size:12.5px; border:1px solid var(--ink-line); border-radius:var(--r-sm); padding:8px 10px 8px 12px; background:var(--paper); box-shadow:none; }
.oc-chip .key{ color:var(--ink-faint); }
.oc-chip .val{ color:#0C6FC2; font-weight:500; }
.oc-chip .resolved{ font-size:9px; color:var(--read-ink); border:1px solid #BFE6D2; border-radius:6px; padding:1px 5px; text-transform:uppercase; letter-spacing:.04em; background:var(--read-soft); }
.oc-chip .edit{ display:grid; place-items:center; width:22px; height:22px; border-radius:6px; border:1px solid var(--hair); color:var(--ink-faint); font-size:11px; cursor:pointer; }
.oc-chip .edit:hover{ background:#fff; color:var(--accent-cyan); border-color:var(--accent-cyan); }
.oc-chip.missing{ border-style:dashed; }
.oc-chip.missing .val{ color:var(--ink-faint); font-weight:400; }

/* ---------- 5 · MONO CODE BLOCK — dark ---------- */
.oc-code{ font-family:var(--font-mono); font-size:11.5px; line-height:1.65; color:#D7DBE2; background:#0A0B0D; border:none; border-radius:var(--r-sm); padding:13px 15px; white-space:pre; overflow:auto; }
.oc-code .kw{ color:#5CB6FF; }
.oc-code .pm{ color:#FFC04D; }
.oc-code .str{ color:#7FE0A6; }
.oc-kv{ display:grid; grid-template-columns:auto 1fr; gap:7px 14px; font-family:var(--font-mono); font-size:12px; }
.oc-kv .k{ color:var(--ink-faint); letter-spacing:.02em; }
.oc-kv .v{ color:var(--ink); }

/* ---------- 6 · STEP TRACKER ---------- */
.oc-steps{ display:flex; flex-direction:column; }
.oc-step{ position:relative; padding-left:42px; }
.oc-step .mk{ position:absolute; left:0; top:9px; width:32px; height:32px; border-radius:50%; border:2px solid var(--ink-line); background:#fff; color:var(--ink-faint); display:grid; place-items:center; font-family:var(--font-mono); font-size:12px; font-weight:500; z-index:1; transition:all var(--dur-fast) var(--ease); }
.oc-step .mk.done{ background:var(--read); color:#fff; border-color:var(--read); }
.oc-step .mk.run{ border-color:var(--accent-cyan); color:var(--accent-cyan); box-shadow:0 0 0 4px var(--accent-cyan-soft); }
.oc-step .mk.err{ border-color:var(--err); color:var(--err); box-shadow:0 0 0 4px var(--err-soft); }
.oc-step:not(:last-child)::before{ content:""; position:absolute; left:15px; top:43px; bottom:-4px; width:2px; background:var(--hair); }
.oc-step.pending{ opacity:.55; }

.oc-step-head{ display:flex; align-items:flex-start; gap:10px; padding:11px 12px 11px 0; cursor:pointer; border-radius:var(--r-sm); }
.oc-step.has-detail .oc-step-head:hover{ background:rgba(10,11,13,.03); }
.oc-step-head .txt{ flex:1; min-width:0; }
.oc-step-head .t{ font-size:13.5px; font-weight:500; color:var(--ink); display:flex; align-items:center; gap:8px; flex-wrap:wrap; }
.oc-step.is-run .oc-step-head .t{ font-weight:600; }
.oc-step-head .d{ font-family:var(--font-mono); font-size:11px; color:var(--ink-faint); margin-top:3px; }
.oc-step-head .caret{ color:var(--ink-faint); font-size:14px; transition:transform var(--dur-fast) var(--ease); flex:none; margin-top:2px; }
.oc-step.is-open .oc-step-head .caret{ transform:rotate(90deg); }

.oc-step-detail{ display:none; margin:0 0 14px 0; padding:14px; background:var(--paper); border:1px solid var(--hair); border-radius:var(--r-sm); }
.oc-step.is-open .oc-step-detail{ display:block; }
.oc-step-detail .row{ display:flex; align-items:center; gap:10px; margin-bottom:10px; flex-wrap:wrap; }
.oc-step-detail .row:last-child{ margin-bottom:0; }
.oc-detail-label{ font-family:var(--font-mono); font-size:10px; letter-spacing:.08em; text-transform:uppercase; color:var(--ink-faint); margin-bottom:6px; }
.oc-nodeids{ display:inline-flex; gap:6px; flex-wrap:wrap; }
.oc-nodeids code{ font-family:var(--font-mono); font-size:11px; background:var(--accent-cyan-soft); border:none; border-radius:6px; padding:3px 8px; color:#0C6FC2; }

@keyframes oc-spin{ to{ transform:rotate(360deg); } }
.oc-spin{ display:inline-block; animation:oc-spin 1s linear infinite; }
@media (prefers-reduced-motion:reduce){ .oc-spin{ animation:none; } }

/* segmented toggle — shared pill (single definition; screens should not redefine) */
.oc-seg{ display:inline-flex; background:var(--card-sunk); border:none; border-radius:999px; padding:3px; flex:none; }
.oc-seg button{ font-family:var(--font-mono); font-size:11px; letter-spacing:.04em; text-transform:uppercase; padding:6px 14px; border:none; border-radius:999px; background:none; color:var(--ink-soft); cursor:pointer; transition:all var(--dur-fast) var(--ease); }
.oc-seg button:hover{ color:var(--ink); }
.oc-seg button.on{ background:var(--ink); color:#fff; }

/* evidence empty state */
.oc-empty{ height:100%; display:flex; flex-direction:column; align-items:center; justify-content:center; text-align:center; gap:12px; color:var(--ink-faint); padding:40px; }
.oc-empty .glyph{ width:54px; height:54px; border:1.5px dashed var(--hair); border-radius:var(--r-md); display:grid; place-items:center; font-size:26px; color:var(--ink-faint); }
.oc-empty .ttl{ font-size:14px; color:var(--ink-soft); font-weight:600; }


/* =====================================================================
   MOBILE / RESPONSIVE NAV + FIXES
   ---------------------------------------------------------------------
   Mobile chrome injected by assets/mobile-nav.js: a fixed dark top bar
   (.oc-mtop) with hamburger, a slide-in drawer (.oc-mdrawer) with the
   full grouped nav, a backdrop (.oc-mscrim), and a fixed bottom tab bar
   (.oc-mbottom). All four are display:none on desktop and only revealed
   inside @media(max-width:768px) — the same breakpoint that hides the
   left rail (.oc-rail). Matches the dark-rail aesthetic: bg #0A0B0D,
   cyan active state via var(--accent-cyan).
   ===================================================================== */

/* Hidden by default (desktop): mobile chrome never shows above 768px. */
.oc-mtop,
.oc-mdrawer,
.oc-mscrim,
.oc-mbottom{ display:none; }

@media (max-width:768px){

  /* ---- top app bar ---- */
  .oc-mtop{
    position:fixed; top:0; left:0; right:0; height:54px; z-index:300;
    background:#0A0B0D; display:flex; align-items:center; gap:10px;
    padding:0 14px; border-bottom:1px solid rgba(255,255,255,.08);
  }
  .oc-mtop-burger{
    width:40px; height:40px; flex:none; display:grid; place-items:center;
    border:0; background:transparent; color:#fff; border-radius:8px;
    cursor:pointer; transition:background var(--dur-fast) var(--ease);
  }
  .oc-mtop-burger i{ font-size:22px; }
  .oc-mtop-burger:hover,
  .oc-mtop-burger:active{ background:rgba(255,255,255,.08); }
  .oc-mtop-brand{
    display:flex; align-items:center; gap:9px; color:#fff;
    font-family:var(--font-display); font-weight:700; font-size:15px;
    text-decoration:none;
  }
  /* scale the 40px brandmark down so it fits inside the 54px bar */
  .oc-mtop-brand .oc-brandmark{ width:30px; height:30px; font-size:18px; border-radius:8px; }

  /* ---- slide-in drawer ---- */
  .oc-mdrawer{
    position:fixed; top:0; left:0; height:100%; width:min(82vw,320px);
    background:#0A0B0D; z-index:320; transform:translateX(-100%);
    transition:transform .25s var(--ease);
    display:flex; flex-direction:column; padding:14px 12px;
    overflow-y:auto; gap:4px;
  }
  .oc-mdrawer.open{ transform:translateX(0); }
  .oc-mdrawer-head{
    display:flex; align-items:center; justify-content:space-between;
    margin-bottom:10px;
  }
  .oc-mdrawer-head .oc-mtop-brand .oc-brandmark{ width:30px; height:30px; font-size:18px; border-radius:8px; }
  .oc-mdrawer-close{
    width:36px; height:36px; flex:none; display:grid; place-items:center;
    border:0; background:transparent; color:#fff; border-radius:8px;
    cursor:pointer; transition:background var(--dur-fast) var(--ease);
  }
  .oc-mdrawer-close i{ font-size:20px; }
  .oc-mdrawer-close:hover,
  .oc-mdrawer-close:active{ background:rgba(255,255,255,.08); }

  /* drawer group header — mirrors .oc-navgrp */
  .oc-navgrp-m{
    font-family:var(--font-mono); font-size:9.5px; letter-spacing:.16em;
    text-transform:uppercase; color:#6b7280; margin:18px 8px 7px;
  }
  /* drawer nav item — mirrors .oc-nav */
  .oc-mnav{
    display:flex; align-items:center; gap:11px; padding:10px 12px;
    border-radius:10px; color:#c5cad3; text-decoration:none; font-size:14px;
    transition:background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
  }
  .oc-mnav i{ font-size:18px; }
  .oc-mnav:hover{ background:rgba(255,255,255,.06); color:#fff; }
  .oc-mnav.on{ background:var(--accent-cyan); color:#fff; }

  /* ---- backdrop scrim ---- */
  .oc-mscrim{
    position:fixed; inset:0; background:rgba(0,0,0,.5); z-index:310;
    opacity:0; visibility:hidden; transition:opacity .25s ease;
  }
  .oc-mscrim.open{ opacity:1; visibility:visible; }

  /* ---- bottom tab bar ---- */
  .oc-mbottom{
    position:fixed; left:0; right:0; bottom:0; z-index:300; height:58px;
    background:#0A0B0D; border-top:1px solid rgba(255,255,255,.08);
    display:flex; padding-bottom:env(safe-area-inset-bottom);
  }
  .oc-mtab{
    flex:1; display:flex; flex-direction:column; align-items:center;
    justify-content:center; gap:3px; background:none; border:0; color:#8b93a1;
    font-family:var(--font-body); font-size:10px; text-decoration:none;
    cursor:pointer;
  }
  .oc-mtab i{ font-size:20px; }
  .oc-mtab.on{ color:var(--accent-cyan); }

  /* lock background scroll while the drawer is open */
  body.oc-mdrawer-lock{ overflow:hidden; }

  /* ---- offset content so the fixed bars never cover anything ---- */
  .oc-app{
    padding-top:54px;
    padding-bottom:calc(58px + env(safe-area-inset-bottom));
  }
  /* white contextual bar sticks just under the fixed app bar */
  .oc-top{ top:54px; }

  /* ---- global cutoff fixes: stack & scroll, never hide content ---- */
  .oc-split{ grid-template-columns:1fr; min-width:0; }
  .oc-split > *{ min-width:0; }
  /* evidence pane stacks under the work column and stays visible */
  .oc-evidence{ border-left:none; border-top:1px solid var(--hair); }

  /* trim the top bar; it already wraps */
  .oc-top{ padding:10px 16px; }

  /* long Cypher scrolls inside its own block, not the page */
  .oc-code{ max-width:100%; overflow-x:auto; }
}

/* slightly smaller monospace for narrow phones — keep formatting intact */
@media (max-width:640px){
  .oc-code{ font-size:11px; }
}

/* very narrow phones: shrink top-bar controls so they fit one row */
@media (max-width:480px){
  .oc-top .crumb{ font-size:12px; }
  .oc-top .oc-meta{ font-size:10px; }
  .oc-top .oc-btn{ padding:8px 13px; font-size:12px; }
  .oc-top .oc-spacer{ display:none; }
  .oc-top .oc-seg{ overflow-x:auto; }
  .oc-top .oc-seg button{ padding:5px 10px; font-size:10px; }
  /* request box: tighten padding so input + button still fit */
  .oc-reqbox{ padding:7px 8px 7px 16px; }
  .oc-reqbox .q{ min-width:0; }
}

/* never allow a page-wide horizontal scrollbar; fixed bars/drawer/scrim
   are attached to <body> so they are not clipped by this */
html,body{ max-width:100%; overflow-x:hidden; }

/* honor reduced-motion: no drawer slide animation */
@media (prefers-reduced-motion:reduce){
  .oc-mdrawer{ transition:none; }
  .oc-mscrim{ transition:none; }
}