:root {
  --bg:       #07090f;
  --s1:       #0d1017;
  --s2:       #131720;
  --s3:       #191e28;
  --border:   #1f2535;
  --border2:  #2a3348;
  --accent:   #00e5b0;
  --accent-d: #00a880;
  --red:      #ff4f6d;
  --yellow:   #ffc142;
  --blue:     #4f9eff;
  --purple:   #b06eff;
  --green:    #2ecc71;
  --text:     #dde3f0;
  --muted:    #5a6480;
  --muted2:   #8892a8;
  --font-mono: 'JetBrains Mono', monospace;
  --font-ui:   'Syne', sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth}

body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-mono);
  min-height:100vh;
  overflow-x:hidden;
}

/* SCANLINE OVERLAY */
body::after{
  content:'';
  position:fixed;inset:0;
  background:repeating-linear-gradient(0deg,transparent,transparent 2px,rgba(0,229,176,0.012) 2px,rgba(0,229,176,0.012) 4px);
  pointer-events:none;z-index:9999;
}

/* GRID BG */
body::before{
  content:'';
  position:fixed;inset:0;
  background-image:
    linear-gradient(rgba(0,229,176,0.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(0,229,176,0.03) 1px,transparent 1px);
  background-size:48px 48px;
  pointer-events:none;z-index:0;
}

.wrap{max-width:1600px;margin:0 auto;padding:0 18px;position:relative;z-index:1}

/* ═══════════════════════════════════════════
   HEADER
═══════════════════════════════════════════ */
header{
  padding:14px 0;
  border-bottom:1px solid var(--border);
  background:rgba(7,9,15,0.92);
  backdrop-filter:blur(12px);
  position:sticky;top:0;z-index:100;
}

.hdr{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}

.logo{display:flex;align-items:center;gap:11px}

.logo-mark{
  width:38px;height:38px;
  background:linear-gradient(135deg,var(--accent),var(--accent-d));
  border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-ui);font-weight:800;font-size:15px;
  color:#07090f;letter-spacing:-1px;flex-shrink:0;
  box-shadow:0 0 20px rgba(0,229,176,0.25);
}

.logo-name{font-family:var(--font-ui);font-weight:800;font-size:21px;color:var(--accent);letter-spacing:-0.5px}
.logo-tagline{font-size:10px;color:var(--muted);letter-spacing:2.5px;text-transform:uppercase;margin-top:1px}

.hdr-right{display:flex;align-items:center;gap:8px;flex-wrap:wrap}

.pill{
  display:inline-flex;align-items:center;gap:5px;
  padding:4px 10px;border-radius:20px;
  font-size:10px;letter-spacing:1px;text-transform:uppercase;font-weight:600;
}

.pill-green{background:rgba(0,229,176,0.1);border:1px solid rgba(0,229,176,0.2);color:var(--accent)}
.pill-green::before{content:'';width:6px;height:6px;background:var(--accent);border-radius:50%;animation:blink 2s infinite}

.pill-blue{background:rgba(79,158,255,0.1);border:1px solid rgba(79,158,255,0.2);color:var(--blue)}

@keyframes blink{0%,100%{opacity:1}50%{opacity:.3}}

/* ═══════════════════════════════════════════
   HERO
═══════════════════════════════════════════ */
.hero{padding:24px 0 18px;text-align:center}

.hero h1{
  font-family:var(--font-ui);font-weight:800;
  font-size:clamp(22px,3.8vw,40px);
  line-height:1.1;letter-spacing:-1.5px;margin-bottom:8px;
}

.hero h1 em{font-style:normal;color:var(--accent)}
.hero h1 span{color:var(--muted2)}

.hero p{color:var(--muted2);font-size:12.5px;max-width:700px;margin:0 auto;line-height:1.75}

/* LANG DETECT BADGE */
.lang-bar{
  display:flex;align-items:center;justify-content:center;gap:8px;
  margin:14px 0 10px;flex-wrap:wrap;
}

.lang-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:6px;
  background:var(--s2);border:1px solid var(--border);
  font-size:11px;color:var(--muted2);transition:all .2s;
}

.lang-chip.active{border-color:var(--accent);color:var(--accent);background:rgba(0,229,176,0.07)}
.lang-chip.detected{border-color:var(--yellow);color:var(--yellow);background:rgba(255,193,66,0.07)}

.lang-dot{width:7px;height:7px;border-radius:50%}

/* ═══════════════════════════════════════════
   INTEGRITY BANNER
═══════════════════════════════════════════ */
#integrityBanner{
  display:none;
  align-items:center;gap:10px;
  padding:10px 16px;border-radius:10px;
  margin:10px 0;font-size:12px;font-weight:600;
  border:1px solid;animation:fadeUp .3s ease;
  line-height:1.5;
}

@keyframes fadeUp{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

#integrityBanner.ok   {background:rgba(46,204,113,0.07);border-color:rgba(46,204,113,0.3);color:var(--green)}
#integrityBanner.warn {background:rgba(255,193,66,0.07);border-color:rgba(255,193,66,0.3);color:var(--yellow)}
#integrityBanner.err  {background:rgba(255,79,109,0.07);border-color:rgba(255,79,109,0.3);color:var(--red)}

/* ═══════════════════════════════════════════
   EDITORS
═══════════════════════════════════════════ */
.editors{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:12px}
@media(max-width:860px){.editors{grid-template-columns:1fr}}

.panel{
  background:var(--s1);
  border:1px solid var(--border);
  border-radius:13px;overflow:hidden;
  display:flex;flex-direction:column;
}

.panel-hdr{
  display:flex;align-items:center;justify-content:space-between;
  padding:9px 13px;
  background:var(--s2);border-bottom:1px solid var(--border);
  gap:8px;flex-wrap:wrap;
}

.panel-title{
  font-size:10.5px;font-weight:600;color:var(--muted);
  letter-spacing:1.8px;text-transform:uppercase;
  display:flex;align-items:center;gap:7px;
}

.panel-actions{display:flex;gap:5px;flex-wrap:wrap}

/* EDITOR TEXTAREA */
textarea{
  flex:1;background:transparent;border:none;outline:none;
  color:var(--text);font-family:var(--font-mono);
  font-size:12px;line-height:1.7;
  padding:13px;resize:none;
  min-height:500px;width:100%;tab-size:2;
}

textarea::placeholder{color:var(--muted);opacity:.35}
#outputCode{cursor:text}

/* STATS BAR */
.stats-bar{
  display:flex;align-items:center;gap:12px;
  padding:7px 13px;
  background:var(--s2);border-top:1px solid var(--border);
  flex-wrap:wrap;
}

.stat{display:flex;align-items:center;gap:4px;font-size:10.5px;color:var(--muted)}
.stat b{font-size:12px;font-weight:700}
.c-ok{color:var(--green)}
.c-warn{color:var(--yellow)}
.c-err{color:var(--red)}
.c-info{color:var(--accent)}

/* ═══════════════════════════════════════════
   ACTION BAR
═══════════════════════════════════════════ */
.action-bar{
  display:flex;align-items:center;justify-content:center;
  gap:8px;margin-bottom:13px;flex-wrap:wrap;
}

/* BUTTONS */
.btn{
  display:inline-flex;align-items:center;gap:5px;
  padding:6px 14px;border-radius:7px;
  font-family:var(--font-mono);font-size:11px;font-weight:600;
  cursor:pointer;border:none;transition:all .15s;
  letter-spacing:.3px;white-space:nowrap;
}

.btn-primary{background:var(--accent);color:#07090f}
.btn-primary:hover{background:#00ffca;transform:translateY(-1px);box-shadow:0 4px 20px rgba(0,229,176,.3)}

.btn-ghost{background:transparent;color:var(--muted2);border:1px solid var(--border2)}
.btn-ghost:hover{border-color:var(--muted2);color:var(--text)}

.btn-yellow{background:rgba(255,193,66,.12);color:var(--yellow);border:1px solid rgba(255,193,66,.25)}
.btn-yellow:hover{background:rgba(255,193,66,.2)}

.btn-red{background:rgba(255,79,109,.1);color:var(--red);border:1px solid rgba(255,79,109,.2)}
.btn-red:hover{background:rgba(255,79,109,.18)}

.btn-blue{background:rgba(79,158,255,.1);color:var(--blue);border:1px solid rgba(79,158,255,.2)}
.btn-blue:hover{background:rgba(79,158,255,.18)}

.btn-lg{padding:9px 22px;font-size:12.5px;border-radius:9px}

/* ═══════════════════════════════════════════
   TABS (Results panels)
═══════════════════════════════════════════ */
.tabs-bar{
  display:flex;gap:2px;
  background:var(--s2);
  border:1px solid var(--border);
  border-radius:10px 10px 0 0;
  padding:6px 8px 0;
  overflow-x:auto;
}

.tab{
  padding:7px 14px;border-radius:7px 7px 0 0;
  font-size:11px;font-weight:600;cursor:pointer;
  color:var(--muted);transition:all .15s;
  white-space:nowrap;border:none;background:transparent;
  font-family:var(--font-mono);
  display:flex;align-items:center;gap:5px;
}

.tab:hover{color:var(--text)}
.tab.active{background:var(--s1);color:var(--text);border:1px solid var(--border);border-bottom:none;margin-bottom:-1px}

.tab-badge{
  padding:1px 6px;border-radius:8px;
  font-size:9.5px;font-weight:700;
}

.tab-badge.red{background:rgba(255,79,109,.2);color:var(--red)}
.tab-badge.yellow{background:rgba(255,193,66,.2);color:var(--yellow)}
.tab-badge.green{background:rgba(46,204,113,.2);color:var(--green)}
.tab-badge.blue{background:rgba(79,158,255,.2);color:var(--blue)}
.tab-badge.muted{background:var(--s3);color:var(--muted2)}

.tabs-content{
  background:var(--s1);
  border:1px solid var(--border);
  border-top:none;
  border-radius:0 0 10px 10px;
  min-height:200px;
  max-height:300px;
  overflow-y:auto;
  margin-bottom:14px;
}

.tab-panel{display:none}
.tab-panel.active{display:block}

/* ISSUE LIST */
.issue-row{
  display:flex;align-items:flex-start;gap:10px;
  padding:8px 14px;border-bottom:1px solid var(--border);
  font-size:11.5px;animation:fadeUp .2s ease;
}

.issue-row:last-child{border-bottom:none}

.issue-cat{
  padding:2px 7px;border-radius:4px;
  font-size:9.5px;font-weight:700;white-space:nowrap;
  flex-shrink:0;margin-top:2px;
}

.cat-dash  {background:rgba(255,79,109,.15);color:#ff8090}
.cat-quote {background:rgba(255,193,66,.15);color:var(--yellow)}
.cat-space {background:rgba(0,229,176,.12);color:var(--accent)}
.cat-brace {background:rgba(176,110,255,.15);color:var(--purple)}
.cat-misc  {background:rgba(79,158,255,.12);color:var(--blue)}
.cat-regex {background:rgba(46,204,113,.12);color:var(--green)}
.cat-struct{background:rgba(255,79,109,.2);color:#ff6080}
.cat-ai    {background:rgba(255,193,66,.2);color:var(--yellow)}
.cat-sec   {background:rgba(255,79,109,.3);color:var(--red)}
.cat-dead  {background:rgba(90,100,128,.2);color:var(--muted2)}

.issue-body{flex:1;line-height:1.55}
.issue-title{color:var(--text);font-weight:600;font-size:11px}
.issue-desc{color:var(--muted2);font-size:10.5px;margin-top:1px}
.issue-line{
  display:inline-block;margin-top:3px;
  padding:1px 6px;background:var(--s3);border-radius:3px;
  font-size:10px;color:var(--muted2);
}
.issue-count{color:var(--red);font-weight:700}

.empty-state{
  display:flex;flex-direction:column;align-items:center;
  justify-content:center;padding:30px;
  color:var(--muted);gap:6px;font-size:12px;text-align:center;
}
.empty-icon{font-size:28px;margin-bottom:4px}

/* DIFF VIEW */
.diff-line{
  display:flex;gap:10px;
  padding:3px 14px;font-size:11.5px;line-height:1.6;
  font-family:var(--font-mono);
}

.diff-line.removed{background:rgba(255,79,109,.07);color:#ff9aa8}
.diff-line.added{background:rgba(46,204,113,.07);color:#7eedb0}
.diff-line.context{color:var(--muted)}

.diff-ln{color:var(--muted);min-width:36px;flex-shrink:0;user-select:none}
.diff-mark{min-width:14px;flex-shrink:0;font-weight:700}

/* SNAPSHOT LIST */
.snapshot-row{
  display:flex;align-items:center;justify-content:space-between;
  padding:8px 14px;border-bottom:1px solid var(--border);
  font-size:11.5px;gap:8px;flex-wrap:wrap;
}

.snapshot-row:last-child{border-bottom:none}
.snapshot-time{color:var(--muted);font-size:10.5px}
.snapshot-info{color:var(--text)}
.snapshot-acts{display:flex;gap:5px}

/* SCROLLBAR */
::-webkit-scrollbar{width:5px;height:5px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border2);border-radius:3px}

/* TOAST */
#toast{
  position:fixed;bottom:20px;right:20px;
  padding:9px 18px;border-radius:8px;
  font-size:12px;font-weight:700;
  z-index:9998;opacity:0;transform:translateY(8px);
  transition:all .2s;pointer-events:none;
}
#toast.ok{background:var(--accent);color:#07090f}
#toast.warn{background:var(--yellow);color:#07090f}
#toast.err{background:var(--red);color:#fff}
#toast.show{opacity:1;transform:none}

/* LOADING OVERLAY */
#loading{
  display:none;position:fixed;inset:0;
  background:rgba(7,9,15,.85);
  backdrop-filter:blur(4px);
  z-index:500;
  align-items:center;justify-content:center;
  flex-direction:column;gap:14px;
}

#loading.show{display:flex}

.spinner{
  width:44px;height:44px;
  border:3px solid var(--border2);
  border-top-color:var(--accent);
  border-radius:50%;animation:spin .7s linear infinite;
}

@keyframes spin{to{transform:rotate(360deg)}}

.loading-text{font-family:var(--font-ui);font-size:14px;color:var(--accent);font-weight:600}

footer{
  text-align:center;padding:16px 0 22px;
  color:var(--muted);font-size:11px;
  border-top:1px solid var(--border);margin-top:4px;
}

footer a{color:var(--accent);text-decoration:none}