/* ==========================================================================
   Vessical — CoronaryCare AI · "Clinical Noir" design system
   --------------------------------------------------------------------------
   Darker contrast, signature phosphor-mint accent, Space Grotesk display
   type, ambient glow layers, custom scrollbars, and 200ms-slow ease
   micro-interactions. All original class names and IDs preserved so
   app.js / contract.js keep working untouched.
   ========================================================================== */

:root{
  /* ---- signature palette ---- */
  --bg:        #04070c;                     /* near-black blue */
  --bg-soft:   #080d14;
  --panel:     #0a1018;
  --panel-2:   #0d141f;
  --panel-hi:  #101a28;
  --line:      #1c2a3a;                     /* faint cold edge */
  --line-soft: #15202e;
  --line-hi:   #2a3f57;

  --text:      #e8f1f8;
  --text-dim:  #b7c6d6;
  --muted:     #74849a;
  --faint:     #4a5a70;

  /* phosphor mint — the Vessical signature */
  --accent:       #34e8c8;
  --accent-bright:#6ff5dd;
  --accent-deep:  #0d8f7a;
  --accent-glow:  rgba(52,232,200,.16);

  /* signal colors */
  --good: #2ee6a8;
  --warn: #f5b544;
  --bad:  #ff5d73;

  /* violet reserved for the CAD gauge readout — clinical "alarm" purple */
  --violet:#9d8bff;

  --radius:   16px;
  --radius-sm:11px;
  --shadow:   0 18px 50px rgba(0,0,0,.55);
  --shadow-sm:0 6px 18px rgba(0,0,0,.4);

  --ease: cubic-bezier(.22,1,.36,1);         /* the Vessical ease — use everywhere */

  font-size:15px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;padding:0}

body{
  background:var(--bg);
  color:var(--text);
  font-family:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  min-height:100vh;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

/* ---- ambient layers: monitor grid + aurora + film grain ---- */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(1000px 480px at 88% -12%, rgba(52,232,200,.075), transparent 62%),
    radial-gradient(800px 560px at -12% 18%, rgba(157,139,255,.06), transparent 58%),
    radial-gradient(700px 500px at 50% 115%, rgba(46,230,168,.045), transparent 60%),
    var(--bg);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.5;
  background-image:
    linear-gradient(rgba(52,232,200,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(52,232,200,.028) 1px, transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(1200px 800px at 60% 0%, #000 0%, transparent 78%);
  -webkit-mask-image:radial-gradient(1200px 800px at 60% 0%, #000 0%, transparent 78%);
}

code{
  font-family:"JetBrains Mono",monospace;font-size:.8em;
  background:#060a10;border:1px solid var(--line-soft);
  padding:.12em .45em;border-radius:6px;color:var(--accent-bright);
}
.muted{color:var(--muted);font-weight:400;font-size:.85em}
.hidden{display:none !important}

/* ============================ TOP BAR ============================ */
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;
  padding:.85rem 1.7rem;
  border-bottom:1px solid transparent;
  background:linear-gradient(180deg, rgba(6,10,16,.92), rgba(6,10,16,.72));
  backdrop-filter:blur(14px) saturate(1.2);
  -webkit-backdrop-filter:blur(14px) saturate(1.2);
  position:sticky;top:0;z-index:50;
  border-image:linear-gradient(90deg, transparent, var(--line) 20%, var(--line) 80%, transparent) 1;
}
.brand{display:flex;align-items:center;gap:.85rem}
.brand-logo{
  width:44px;height:44px;color:var(--accent);
  filter:drop-shadow(0 0 10px var(--accent-glow));
  transition:filter .4s var(--ease);
}
.brand:hover .brand-logo{filter:drop-shadow(0 0 16px rgba(52,232,200,.35))}
.brand h1{
  margin:0;font-size:1.28rem;font-weight:700;letter-spacing:-.02em;
  font-family:"Space Grotesk",sans-serif;
}
.brand h1 span{color:var(--accent)}
.brand p{
  margin:0;font-size:.68rem;color:var(--muted);letter-spacing:.14em;text-transform:uppercase;
  font-family:"JetBrains Mono",monospace;
}
.topbar-right{display:flex;align-items:center;gap:.9rem;flex-wrap:wrap}

.status-pill{
  display:inline-flex;align-items:center;gap:.45rem;font-size:.76rem;font-weight:600;
  padding:.34rem .8rem;border-radius:999px;
  border:1px solid var(--line);background:rgba(8,13,20,.7);
  transition:border-color .3s var(--ease), color .3s var(--ease);
}
.status-pill .dot{width:8px;height:8px;border-radius:50%;background:var(--muted);transition:background .3s}
.status-pill.status-ok{border-color:rgba(46,230,168,.45);color:var(--good)}
.status-pill.status-ok .dot{background:var(--good);box-shadow:0 0 10px var(--good);animation:pulse 2.2s ease-in-out infinite}
.status-pill.status-bad{border-color:rgba(255,93,115,.45);color:var(--bad)}
.status-pill.status-bad .dot{background:var(--bad);box-shadow:0 0 10px var(--bad)}
.status-pill.status-unknown .dot{background:var(--warn);box-shadow:0 0 8px var(--warn);animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

.api-settings{display:flex;align-items:center;gap:.5rem}
.api-settings label{
  font-size:.66rem;color:var(--faint);text-transform:uppercase;letter-spacing:.12em;
  font-family:"JetBrains Mono",monospace;
}
.api-settings input{
  width:220px;background:rgba(4,8,13,.8);border:1px solid var(--line);color:var(--text);
  border-radius:9px;padding:.45rem .65rem;
  font-family:"JetBrains Mono",monospace;font-size:.76rem;outline:none;
  transition:border-color .25s var(--ease), box-shadow .25s var(--ease), background .25s;
}
.api-settings input:hover{border-color:var(--line-hi)}
.api-settings input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-glow)}

.disclaimer-ribbon{
  display:flex;align-items:center;gap:.6rem;justify-content:center;
  background:linear-gradient(90deg, rgba(245,181,68,.1), rgba(245,181,68,.04) 50%, rgba(245,181,68,.1));
  border-bottom:1px solid rgba(245,181,68,.18);
  color:#f6c66a;font-size:.78rem;padding:.42rem 1rem;text-align:center;
}

/* ============================ LAYOUT ============================ */
.layout{
  display:grid;grid-template-columns:minmax(430px,560px) 1fr;
  gap:1.3rem;padding:1.5rem 1.7rem;max-width:1560px;margin:0 auto;align-items:start;
}
.results-col{display:flex;flex-direction:column;gap:1.3rem;min-width:0}

.panel{
  position:relative;
  background:linear-gradient(180deg,var(--panel),var(--panel-2));
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:border-color .35s var(--ease), box-shadow .35s var(--ease), transform .35s var(--ease);
}
.panel:hover{border-color:var(--line-hi);box-shadow:var(--shadow)}
/* faint top-light on each panel */
.panel::before{
  content:"";position:absolute;inset:0 0 auto 0;height:1px;pointer-events:none;
  background:linear-gradient(90deg, transparent 8%, rgba(232,241,248,.14) 50%, transparent 92%);
}
.panel-head{
  display:flex;justify-content:space-between;align-items:flex-start;gap:1rem;
  padding:1.1rem 1.35rem .85rem;border-bottom:1px solid var(--line-soft);
}
.panel-head h2{
  margin:0;font-size:1.02rem;font-weight:600;letter-spacing:-.01em;
  display:flex;align-items:center;gap:.6rem;
  font-family:"Space Grotesk",sans-serif;
}
.step-num{
  font-family:"JetBrains Mono",monospace;font-size:.66rem;color:var(--accent);
  border:1px solid rgba(52,232,200,.35);border-radius:7px;padding:.14rem .45rem;
  background:var(--accent-glow);letter-spacing:.05em;
}
.panel-sub{margin:.3rem 0 0;font-size:.78rem;color:var(--muted)}
.head-actions{display:flex;gap:.5rem;flex-shrink:0}

/* ============================ BUTTONS ============================ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  border:1px solid var(--line);background:rgba(13,20,31,.85);color:var(--text);
  border-radius:10px;padding:.52rem .9rem;
  font-family:inherit;font-size:.82rem;font-weight:600;cursor:pointer;
  transition:transform .18s var(--ease), background .2s var(--ease),
             border-color .2s var(--ease), box-shadow .25s var(--ease), color .2s;
  position:relative;overflow:hidden;
}
.btn::after{                                   /* sheen sweep */
  content:"";position:absolute;top:0;bottom:0;left:-60%;width:40%;
  background:linear-gradient(100deg, transparent, rgba(255,255,255,.07), transparent);
  transform:skewX(-18deg);transition:left .5s var(--ease);pointer-events:none;
}
.btn:hover::after{left:130%}
.btn:hover{
  transform:translateY(-1.5px);border-color:var(--line-hi);
  box-shadow:0 8px 22px rgba(0,0,0,.45), 0 0 0 1px rgba(52,232,200,.06);
}
.btn:active{transform:translateY(0) scale(.985)}
.btn-primary{
  background:linear-gradient(135deg,#0e8f79,#0a6e5f);
  border-color:rgba(52,232,200,.5);color:#eafffa;
  box-shadow:0 8px 26px rgba(13,143,122,.35), inset 0 1px 0 rgba(255,255,255,.12);
}
.btn-primary:hover{
  background:linear-gradient(135deg,#11a98f,#0c7d6a);
  box-shadow:0 10px 32px rgba(13,143,122,.5), 0 0 22px rgba(52,232,200,.18), inset 0 1px 0 rgba(255,255,255,.15);
}
.btn-ghost{background:transparent;border-color:var(--line-soft);color:var(--text-dim)}
.btn-ghost:hover{color:var(--text)}
.btn-sm{padding:.36rem .65rem;font-size:.74rem}
.btn-lg{padding:.78rem 1.4rem;font-size:.92rem;border-radius:12px}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.btn[disabled]::after{display:none}

/* ============================ FORM ============================ */
.form-groups{padding:.4rem 1.35rem 1rem}

.fieldset{
  border:1px solid var(--line-soft);border-radius:12px;margin-top:.9rem;overflow:hidden;
  background:rgba(4,8,13,.35);
  transition:border-color .3s var(--ease);
}
.fieldset:hover{border-color:var(--line)}
.fieldset>summary{
  list-style:none;cursor:pointer;user-select:none;
  display:flex;align-items:center;justify-content:space-between;
  padding:.62rem .95rem;
  font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.12em;color:var(--accent);
  font-family:"JetBrains Mono",monospace;
  transition:background .25s var(--ease);
}
.fieldset>summary:hover{background:rgba(52,232,200,.04)}
.fieldset>summary::-webkit-details-marker{display:none}
.fieldset>summary::after{
  content:"";width:7px;height:7px;margin-right:.2rem;
  border-right:2px solid currentColor;border-bottom:2px solid currentColor;
  transform:rotate(45deg);transition:transform .25s var(--ease);
}
.fieldset[open]>summary{border-bottom:1px solid var(--line-soft)}
.fieldset[open]>summary::after{transform:rotate(-135deg)}
.fieldset .fields{display:grid;grid-template-columns:1fr 1fr;gap:.6rem .95rem;padding:.9rem .95rem 1rem}

.field{display:flex;flex-direction:column;gap:.3rem;min-width:0}
.field.full{grid-column:1/-1}
.field label{
  font-size:.72rem;font-weight:600;color:var(--muted);
  display:flex;justify-content:space-between;gap:.4rem;
  transition:color .25s var(--ease);
}
.field:focus-within label{color:var(--accent)}
.field label .unit{font-weight:400;color:var(--faint)}
.field input[type=number],.field select{
  background:rgba(4,8,13,.75);border:1px solid var(--line);color:var(--text);
  border-radius:9px;padding:.5rem .65rem;font-size:.85rem;font-family:inherit;outline:none;width:100%;
  transition:border-color .2s var(--ease), box-shadow .25s var(--ease), background .2s;
  appearance:none;
}
.field select{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%2374849a' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right .7rem center;
  padding-right:1.8rem;
}
.field select option{background:#0a1018;color:var(--text)}
.field input[type=number]:hover,.field select:hover{border-color:var(--line-hi)}
.field input[type=number]:focus,.field select:focus{
  border-color:var(--accent);background:rgba(52,232,200,.03);
  box-shadow:0 0 0 3px var(--accent-glow);
}
/* hide number spinners — cleaner, calmer inputs */
.field input[type=number]::-webkit-outer-spin-button,
.field input[type=number]::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}
.field input[type=number]{-moz-appearance:textfield}
.field .hint{font-size:.68rem;color:var(--faint);margin:0}
.field .hint.err{color:var(--bad)}

.seg{display:flex;border:1px solid var(--line);border-radius:9px;overflow:hidden;background:rgba(4,8,13,.75)}
.seg button{
  flex:1;background:transparent;border:none;color:var(--muted);padding:.48rem 0;
  font-family:inherit;font-size:.8rem;font-weight:600;cursor:pointer;
  transition:background .25s var(--ease),color .25s var(--ease);
}
.seg button+button{border-left:1px solid var(--line)}
.seg button:hover{color:var(--text-dim)}
.seg button.on-y{background:rgba(46,230,168,.16);color:var(--good);box-shadow:inset 0 0 0 1px rgba(46,230,168,.3)}
.seg button.on-n{background:rgba(148,163,184,.1);color:#cbd5e1}

.form-footer{
  display:flex;align-items:center;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  padding:1.05rem 1.35rem 1.25rem;border-top:1px solid var(--line-soft);
}
.footer-actions{display:flex;align-items:center;gap:.6rem;flex-wrap:wrap}
.chk{display:flex;align-items:center;gap:.5rem;font-size:.8rem;color:var(--muted);cursor:pointer;user-select:none;transition:color .2s}
.chk:hover{color:var(--text-dim)}
.chk input{accent-color:var(--accent);width:15px;height:15px;cursor:pointer}

/* custom thin scrollbar for the form column */
.form-panel .form-groups{scrollbar-width:thin;scrollbar-color:var(--line-hi) transparent}
.form-panel .form-groups::-webkit-scrollbar{width:8px}
.form-panel .form-groups::-webkit-scrollbar-track{background:transparent}
.form-panel .form-groups::-webkit-scrollbar-thumb{background:var(--line);border-radius:99px;border:2px solid transparent;background-clip:content-box}
.form-panel .form-groups::-webkit-scrollbar-thumb:hover{background:var(--line-hi);border:2px solid transparent;background-clip:content-box}

/* ============================ CAD GAUGE ============================ */
.cad-body{
  display:grid;grid-template-columns:auto 1fr;gap:1.5rem;
  padding:1.3rem 1.45rem 1.5rem;align-items:center;
}
.gauge-wrap{position:relative;width:258px}
.gauge{width:100%;display:block}
.gauge-track{fill:none;stroke:#131c29;stroke-width:16;stroke-linecap:round}
.gauge-arc{
  fill:none;stroke:url(#gaugeGrad);stroke-width:16;stroke-linecap:round;
  stroke-dashoffset:283;
  transition:stroke-dashoffset 1.1s var(--ease);
  filter:drop-shadow(0 0 8px rgba(52,232,200,.25));
}
.gauge-needle{
  transform-box:view-box;transform-origin:110px 120px;transform:rotate(-90deg);
  transition:transform 1.1s var(--ease);
}
.gauge-needle line{stroke:var(--text);stroke-width:3;stroke-linecap:round}
.gauge-hub{fill:var(--text)}
.gauge-readout{position:absolute;left:0;right:0;bottom:-8px;text-align:center}
.gauge-readout #gauge-value{
  font-family:"JetBrains Mono",monospace;font-size:1.95rem;font-weight:700;letter-spacing:-.02em;
}
.band{
  display:inline-block;margin-left:.5rem;font-size:.68rem;font-weight:700;text-transform:uppercase;
  letter-spacing:.08em;padding:.22rem .6rem;border-radius:999px;vertical-align:middle;
  border:1px solid transparent;
}
.band-idle{background:#131c29;color:var(--muted);border-color:var(--line-soft)}
.band-low{background:rgba(46,230,168,.12);color:var(--good);border-color:rgba(46,230,168,.35)}
.band-moderate,.band-medium{background:rgba(245,181,68,.12);color:var(--warn);border-color:rgba(245,181,68,.35)}
.band-high{background:rgba(255,93,115,.12);color:var(--bad);border-color:rgba(255,93,115,.4)}

.cad-side{display:flex;flex-direction:column;gap:.65rem;min-width:0}
.stat-row{
  display:flex;justify-content:space-between;gap:1rem;
  border-bottom:1px dashed var(--line-soft);padding-bottom:.55rem;
}
.stat-row:last-of-type{border-bottom:none}
.stat-label{font-size:.76rem;color:var(--muted)}
.stat-value{font-size:.85rem;font-weight:700;text-align:right;font-family:"JetBrains Mono",monospace}
.stat-value:not(#cad-time):not(#cad-model){font-family:"Inter",sans-serif}

.truth-box{
  margin-top:.4rem;border:1px solid var(--line-soft);border-radius:12px;
  padding:.75rem .9rem;background:rgba(4,8,13,.55);
}
.truth-box h4{
  margin:0 0 .55rem;font-size:.7rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);
  font-family:"JetBrains Mono",monospace;font-weight:700;
}
.truth-chips{display:flex;flex-wrap:wrap;gap:.45rem}
.chip{
  display:inline-flex;align-items:center;gap:.35rem;font-size:.73rem;font-weight:600;
  padding:.28rem .62rem;border-radius:999px;
  border:1px solid var(--line);background:rgba(8,13,20,.8);
  transition:transform .2s var(--ease);
}
.chip:hover{transform:translateY(-1px)}
.chip.ok{border-color:rgba(46,230,168,.45);color:var(--good);background:rgba(46,230,168,.07)}
.chip.bad{border-color:rgba(255,93,115,.45);color:var(--bad);background:rgba(255,93,115,.07)}
.chip.neutral{border-color:var(--line);color:var(--muted)}

/* ============================ VESSELS ============================ */
.vessel-layout{
  display:grid;grid-template-columns:300px 1fr;gap:1.4rem;
  padding:1.15rem 1.35rem 1.4rem;align-items:center;
}
.heart-schematic{perspective:950px}
.heart-schematic svg{width:100%;display:block}
#heart-svg{
  transition:transform .18s ease-out;
  transform-style:preserve-3d;
  will-change:transform;
  filter:drop-shadow(0 16px 30px rgba(0,0,0,.6)) drop-shadow(0 0 24px rgba(52,232,200,.05));
}
#heart-body{
  transform-box:view-box;transform-origin:170px 170px;
  animation:heartbeat 1.6s ease-in-out infinite;
}
@keyframes heartbeat{
  0%,100%{transform:scale(1)}
  12%     {transform:scale(1.028)}
  24%     {transform:scale(1)}
  36%     {transform:scale(1.016)}
}
@media (prefers-reduced-motion:reduce){
  #heart-body{animation:none}
  #heart-svg{transition:none}
}

.vessel{
  fill:none;stroke:#31435c;stroke-width:7;stroke-linecap:round;cursor:pointer;
  transition:stroke .35s var(--ease), stroke-width .35s var(--ease), opacity .35s var(--ease),
             filter .35s var(--ease);
}
.vessel:hover{stroke:#4a678c;stroke-width:8.5;filter:drop-shadow(0 0 6px rgba(120,180,255,.35))}
.vessel.active{stroke-width:10;filter:drop-shadow(0 0 8px currentColor)}

.vessel-label{cursor:pointer;outline:none}
.vessel-label rect{
  fill:rgba(6,10,16,.92);stroke:var(--line);
  transition:stroke .25s var(--ease), fill .25s var(--ease);
}
.vessel-label text{
  fill:var(--muted);font-size:12px;font-weight:700;font-family:"JetBrains Mono",monospace;
  transition:fill .25s var(--ease);
}
.vessel-label:hover rect{stroke:var(--line-hi)}
.vessel-label.active rect{stroke:var(--accent);fill:rgba(52,232,200,.1)}
.vessel-label.active text{fill:var(--accent)}
.schematic-note{font-size:.66rem;color:var(--faint);text-align:center;margin:.45rem 0 0;font-family:"JetBrains Mono",monospace}

.vessel-cards{display:flex;flex-direction:column;gap:.8rem}
.vcard{
  border:1px solid var(--line-soft);border-radius:13px;
  padding:.9rem 1.05rem;background:rgba(4,8,13,.55);
  cursor:pointer;
  transition:border-color .25s var(--ease), transform .2s var(--ease), box-shadow .3s var(--ease), background .25s;
}
.vcard:hover{transform:translateY(-2px);border-color:var(--line-hi);background:rgba(8,13,20,.65)}
.vcard.active{
  border-color:rgba(52,232,200,.5);
  box-shadow:0 0 0 3px rgba(52,232,200,.08), 0 8px 24px rgba(0,0,0,.4);
}
.vcard-top{display:flex;justify-content:space-between;align-items:center;gap:.6rem}
.vcard h3{margin:0;font-size:.92rem;font-weight:700;font-family:"Space Grotesk",sans-serif;letter-spacing:.01em}
.vcard .vprob{font-family:"JetBrains Mono",monospace;font-weight:700;font-size:1.08rem}
.vcard .vlabel{
  font-size:.68rem;font-weight:700;text-transform:uppercase;letter-spacing:.07em;
  padding:.2rem .55rem;border-radius:999px;
}
.vlabel.stenotic{background:rgba(255,93,115,.13);color:var(--bad);border:1px solid rgba(255,93,115,.35)}
.vlabel.normal{background:rgba(46,230,168,.12);color:var(--good);border:1px solid rgba(46,230,168,.35)}
.vbar{height:8px;border-radius:99px;background:#131c29;margin-top:.65rem;overflow:hidden}
.vbar>div{
  height:100%;width:0;border-radius:99px;
  transition:width 1s var(--ease), background .4s;
  box-shadow:0 0 10px rgba(52,232,200,.25);
}
.vcard .vregion{font-size:.72rem;color:var(--muted);margin-top:.5rem}

/* ============================ EXPLANATION ============================ */
.tabbar{
  display:flex;gap:.3rem;background:rgba(4,8,13,.75);
  border:1px solid var(--line);border-radius:10px;padding:.28rem;
}
.tab{
  border:none;background:transparent;color:var(--muted);
  font-family:inherit;font-size:.76rem;font-weight:700;
  padding:.38rem .85rem;border-radius:8px;cursor:pointer;
  transition:background .25s var(--ease),color .25s var(--ease), box-shadow .25s;
}
.tab:hover{color:var(--text-dim)}
.tab.active{
  background:rgba(52,232,200,.13);color:var(--accent);
  box-shadow:inset 0 0 0 1px rgba(52,232,200,.3);
}
.explain-body{padding:1.05rem 1.35rem 1.35rem}

.xbar-row{
  display:grid;grid-template-columns:190px 1fr 64px;gap:.75rem;align-items:center;
  padding:.45rem 0;border-bottom:1px dashed var(--line-soft);
  transition:background .2s;
  border-radius:6px;
}
.xbar-row:hover{background:rgba(52,232,200,.025)}
.xbar-row:last-child{border-bottom:none}
.xfeat{font-size:.8rem;font-weight:600;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.xfeat .xval{display:block;font-weight:400;font-size:.68rem;color:var(--muted)}
.xtrack{position:relative;height:20px;background:#131c29;border-radius:7px;overflow:hidden}
.xtrack .zero{position:absolute;left:50%;top:0;bottom:0;width:1px;background:#33465e}
.xfill{
  position:absolute;top:3px;bottom:3px;border-radius:6px;width:0;
  transition:width .9s var(--ease);
}
.xfill.pos{left:50%;background:linear-gradient(90deg,rgba(255,93,115,.45),#ff5d73);box-shadow:0 0 12px rgba(255,93,115,.3)}
.xfill.neg{right:50%;background:linear-gradient(270deg,rgba(46,230,168,.45),#2ee6a8);box-shadow:0 0 12px rgba(46,230,168,.3)}
.xval-out{font-family:"JetBrains Mono",monospace;font-size:.78rem;font-weight:700;text-align:right}
.xval-out.pos{color:var(--bad)}
.xval-out.neg{color:var(--good)}
.xlegend{display:flex;gap:1.2rem;font-size:.72rem;color:var(--muted);margin-top:.8rem}
.xlegend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:.4rem;vertical-align:-1px}

/* ============================ METRICS ============================ */
.metrics-panel{max-width:1560px;margin:0 auto 1.5rem;width:calc(100% - 3.4rem)}
#metrics-body{padding:1.15rem 1.35rem 1.4rem}
.metric-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:.8rem}
.mcard{
  border:1px solid var(--line-soft);border-radius:13px;padding:.9rem 1.05rem;
  background:rgba(4,8,13,.55);
  transition:border-color .3s var(--ease), transform .2s var(--ease);
}
.mcard:hover{border-color:var(--line-hi);transform:translateY(-1.5px)}
.mcard h4{
  margin:0 0 .35rem;font-size:.68rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted);
  font-family:"JetBrains Mono",monospace;font-weight:700;
}
.mcard .mval{
  font-family:"JetBrains Mono",monospace;font-size:1.4rem;font-weight:700;
  color:var(--accent);text-shadow:0 0 18px var(--accent-glow);
}
.mtable{width:100%;border-collapse:collapse;font-size:.8rem;margin-top:.5rem}
.mtable th{
  text-align:left;color:var(--muted);font-size:.68rem;text-transform:uppercase;letter-spacing:.08em;
  padding:.4rem .55rem;border-bottom:1px solid var(--line);
  font-family:"JetBrains Mono",monospace;
}
.mtable td{padding:.4rem .55rem;border-bottom:1px solid var(--line-soft)}
.mtable tbody tr{transition:background .2s}
.mtable tbody tr:hover{background:rgba(52,232,200,.03)}
.metric-section-title{margin:1.25rem 0 .35rem;font-size:.82rem;font-weight:700;font-family:"Space Grotesk",sans-serif}
.metric-raw{
  margin-top:1.25rem;border:1px solid var(--line-soft);border-radius:12px;
  padding:.65rem .9rem;background:rgba(4,8,13,.55);
}
.metric-raw summary{cursor:pointer;font-size:.78rem;font-weight:700;color:var(--warn);list-style:none}
.metric-raw summary::-webkit-details-marker{display:none}
.metric-raw summary::before{content:"▸ ";font-family:"JetBrains Mono",monospace}
.metric-raw[open] summary::before{content:"▾ "}
.metric-raw pre{
  margin:.65rem 0 0;max-height:260px;overflow:auto;
  font-family:"JetBrains Mono",monospace;font-size:.74rem;color:var(--muted);
  scrollbar-width:thin;
}
.metric-raw pre::-webkit-scrollbar{width:8px;height:8px}
.metric-raw pre::-webkit-scrollbar-thumb{background:var(--line);border-radius:99px}

/* ============================ EMPTY / MISC ============================ */
.empty-state{
  display:flex;flex-direction:column;align-items:center;gap:.75rem;
  color:var(--faint);padding:2.3rem 1rem;text-align:center;
}
.empty-state svg{opacity:.6}
.empty-state p{margin:0;font-size:.85rem;color:var(--muted)}
.empty-state.small{padding:1.3rem}

.footer{
  text-align:center;padding:1.7rem 1rem 2.3rem;color:var(--muted);font-size:.75rem;
  border-top:1px solid var(--line-soft);margin-top:.6rem;
  position:relative;
}
.footer::before{
  content:"";position:absolute;top:-1px;left:50%;transform:translateX(-50%);
  width:220px;height:1px;
  background:linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity:.5;
}
.footer p{margin:.25rem 0}

.toast{
  position:fixed;bottom:1.5rem;left:50%;transform:translate(-50%,24px);
  background:rgba(8,13,20,.95);border:1px solid var(--line);border-left:3px solid var(--accent);
  color:var(--text);padding:.78rem 1.15rem;border-radius:12px;font-size:.83rem;
  opacity:0;pointer-events:none;
  transition:opacity .3s var(--ease), transform .3s var(--ease);
  z-index:100;max-width:min(520px,90vw);
  box-shadow:var(--shadow);
  backdrop-filter:blur(8px);
}
.toast.show{opacity:1;transform:translate(-50%,0)}
.toast.err{border-left-color:var(--bad)}

/* ============================ LOADING SPINNER ============================ */
.btn.is-loading{pointer-events:none;opacity:.8}
.btn.is-loading::after{
  content:"";width:13px;height:13px;border-radius:50%;
  border:2px solid currentColor;border-right-color:transparent;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ============================ FOCUS ============================ */
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.vcard:focus-visible{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(52,232,200,.28)}
.vessel-label:focus-visible{outline:none}
.vessel-label:focus-visible rect{stroke:var(--accent);stroke-width:3}
.vessel-label:focus-visible text{fill:var(--accent)}
.vessel:focus-visible{outline:none}
.tab:focus-visible{outline-offset:0}
.seg button:focus-visible,.fieldset>summary:focus-visible{outline-offset:-2px}

/* panel entrance: everything settles in softly */
@media (prefers-reduced-motion:no-preference){
  .panel{animation:panelIn .55s var(--ease) both}
  .results-col .panel:nth-child(2){animation-delay:.07s}
  .results-col .panel:nth-child(3){animation-delay:.14s}
  @keyframes panelIn{
    from{opacity:0;transform:translateY(10px)}
    to  {opacity:1;transform:translateY(0)}
  }
}

/* ============================ RESPONSIVE ============================ */
@media (min-width:1181px){
  .form-panel{
    position:sticky;top:86px;display:flex;flex-direction:column;
    max-height:calc(100vh - 102px);
  }
  .form-panel .form-groups{flex:1;min-height:0;overflow-y:auto}
  .form-panel .panel-head,.form-panel .form-footer{flex-shrink:0}
}
@media (max-width:1180px){
  .layout{grid-template-columns:1fr}
  .vessel-layout{grid-template-columns:260px 1fr}
}
@media (max-width:760px){
  .cad-body{grid-template-columns:1fr;justify-items:center}
  .vessel-layout{grid-template-columns:1fr}
  .fieldset .fields{grid-template-columns:1fr}
  .topbar{flex-direction:column;align-items:flex-start}
  .metrics-panel{width:calc(100% - 2rem)}
  .xbar-row{grid-template-columns:120px 1fr 56px}
}