/* ── Reset & Tokens ─────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --green:       #00ff41;
  --green-dim:   #00cc33;
  --green-faint: #003d10;
  --green-glow:  rgba(0, 255, 65, 0.25);
  --bg:          #080c08;
  --bg-card:     #0b120c;
  --border:      rgba(0, 255, 65, 0.18);
  --text:        #00ff41;
  --text-dim:    #00993a;
  --text-ghost:  #005020;
  --red:         #ff3333;
  --amber:       #ffaa00;
  --font:        'JetBrains Mono', 'Courier New', monospace;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Matrix rain ────────────────────────────────── */
#matrix-rain {
  position: fixed;
  inset: 0;
  z-index: 0;
  opacity: 0.06;
  pointer-events: none;
}

/* ── Layout ─────────────────────────────────────── */
.container {
  position: relative;
  z-index: 1;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}

/* ── Header ─────────────────────────────────────── */
header {
  text-align: center;
  padding: 3.5rem 0 2rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2.5rem;
}

.logo {
  font-size: clamp(2rem, 8vw, 3.5rem);
  font-weight: 700;
  letter-spacing: 0.6rem;
  text-shadow: 0 0 24px var(--green), 0 0 50px var(--green-glow);
  margin-bottom: 0.5rem;
  user-select: none;
}

.logo-bracket { color: var(--text-dim); opacity: 0.7; }

.logo-text { animation: logo-flicker 8s infinite; }

@keyframes logo-flicker {
  0%, 90%, 100% { opacity: 1; }
  91% { opacity: 0.85; }
  92% { opacity: 1; }
  93.5% { opacity: 0.6; }
  94% { opacity: 1; }
}

.tagline {
  color: var(--text-ghost);
  font-size: 0.78rem;
  letter-spacing: 0.12rem;
  margin-bottom: 1.2rem;
}

.model-status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.72rem;
  color: var(--text-dim);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 0.3rem 0.9rem;
  letter-spacing: 0.05rem;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  flex-shrink: 0;
}

.status-dot.loading { animation: dot-pulse 1.2s ease-in-out infinite; }
.status-dot.warn    { background: var(--amber); }
.status-dot.ready   { background: var(--green); box-shadow: 0 0 6px var(--green); }

@keyframes dot-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.2; }
}

/* ── Input section ──────────────────────────────── */
.input-section { margin-bottom: 1.5rem; }

.input-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-dim);
  font-size: 0.72rem;
  letter-spacing: 0.12rem;
  margin-bottom: 0.5rem;
}

.input-actions { display: flex; align-items: center; gap: 1rem; }

.hint { color: var(--text-ghost); font-size: 0.68rem; }

#clear-btn {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-family: var(--font);
  font-size: 0.68rem;
  letter-spacing: 0.1rem;
  padding: 0.2rem 0.6rem;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s;
}

#clear-btn:hover { border-color: var(--green); color: var(--green); }

#code-input {
  display: block;
  width: 100%;
  min-height: 280px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.85rem;
  line-height: 1.7;
  padding: 1rem 1.2rem;
  resize: vertical;
  outline: none;
  transition: border-color 0.25s, box-shadow 0.25s;
}

#code-input::placeholder { color: var(--text-ghost); }
#code-input:focus {
  border-color: var(--green-dim);
  box-shadow: 0 0 18px var(--green-glow), inset 0 0 8px rgba(0,255,65,0.04);
}

.analyze-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 0.9rem;
  padding: 0.75rem 2.2rem;
  background: transparent;
  border: 1px solid var(--green);
  color: var(--green);
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.2rem;
  cursor: pointer;
  overflow: hidden;
  transition: background 0.3s, box-shadow 0.3s, text-shadow 0.3s;
}

.analyze-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  left: -110%;
  background: linear-gradient(90deg, transparent, rgba(0,255,65,0.12), transparent);
  transition: left 0.55s ease;
}

.analyze-btn:hover::before { left: 110%; }
.analyze-btn:hover {
  background: rgba(0,255,65,0.07);
  box-shadow: 0 0 24px var(--green-glow);
  text-shadow: 0 0 10px var(--green);
}

.analyze-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

/* ── Scanning animation ─────────────────────────── */
.scanning {
  display: none;
  text-align: center;
  padding: 3rem 1rem;
  position: relative;
  overflow: hidden;
}

.scan-beam {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
  animation: scan 1.4s ease-in-out infinite;
  box-shadow: 0 0 8px var(--green);
}

@keyframes scan {
  0%   { top: 0; }
  100% { top: 100%; }
}

.scan-label {
  font-size: 0.9rem;
  letter-spacing: 0.25rem;
  color: var(--green);
  margin-top: 1rem;
}

.cursor { animation: blink 0.9s step-end infinite; }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* ── Result cards ───────────────────────────────── */
.results { display: none; }

.result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.result-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 1.2rem 1.3rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease, border-color 0.2s;
}

.result-card.visible { opacity: 1; transform: translateY(0); }
.result-card:hover { border-color: rgba(0,255,65,0.4); }
.result-card.full { grid-column: 1 / -1; }

.card-label {
  font-size: 0.65rem;
  letter-spacing: 0.2rem;
  color: var(--text-dim);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.5rem;
  margin-bottom: 0.9rem;
}

.card-primary {
  font-size: 2rem;
  font-weight: 700;
  text-shadow: 0 0 16px var(--green-glow);
  margin-bottom: 0.6rem;
  min-height: 2.4rem;
}

/* alt langs */
.alt-langs {
  font-size: 0.7rem;
  color: var(--text-ghost);
  margin-bottom: 0.6rem;
  min-height: 1rem;
}

/* confidence / bar */
.confidence-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  font-size: 0.72rem;
  color: var(--text-dim);
}

.bar-track {
  flex: 1;
  height: 4px;
  background: var(--green-faint);
  border-radius: 2px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  width: 0;
  background: var(--green);
  border-radius: 2px;
  box-shadow: 0 0 6px var(--green);
  transition: width 1.1s cubic-bezier(0.22, 1, 0.36, 1);
}

/* complexity */
.cx-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-top: 0.5rem;
}

.cx-sub {
  font-size: 0.7rem;
  color: var(--text-dim);
  white-space: nowrap;
}

/* Pattern tags */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 0.5rem; min-height: 2rem; }

.tag {
  border: 1px solid var(--green-dim);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.72rem;
  padding: 0.25rem 0.65rem;
  letter-spacing: 0.04rem;
  opacity: 0;
  transform: translateY(4px);
  animation: tag-in 0.3s ease forwards;
  transition: background 0.2s, box-shadow 0.2s;
  cursor: default;
}

@keyframes tag-in {
  to { opacity: 1; transform: translateY(0); }
}

.tag:hover {
  background: rgba(0, 255, 65, 0.08);
  box-shadow: 0 0 8px var(--green-glow);
}

.no-data { color: var(--text-ghost); font-size: 0.78rem; }

/* Stats grid */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.9rem;
}

.stat-item { border-left: 2px solid var(--green-dim); padding-left: 0.8rem; }
.stat-label { font-size: 0.65rem; letter-spacing: 0.12rem; color: var(--text-dim); margin-bottom: 0.2rem; }
.stat-value { font-size: 1.3rem; font-weight: 700; }

/* BERT metrics */
.bert-grid { display: flex; flex-direction: column; gap: 0; }

.bert-row {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.78rem;
}

.bert-row:last-child { border-bottom: none; }

.bert-label { width: 190px; color: var(--text-dim); flex-shrink: 0; }

.bert-bar {
  flex: 1;
  height: 3px;
  background: var(--green-faint);
  border-radius: 2px;
  overflow: hidden;
}

.bert-fill {
  height: 100%;
  width: 0;
  background: var(--green);
  transition: width 1.4s cubic-bezier(0.22, 1, 0.36, 1);
}

.bert-pct { width: 36px; text-align: right; color: var(--text-dim); font-size: 0.72rem; }

.bert-note { color: var(--text-ghost); font-size: 0.78rem; line-height: 1.7; }

/* ── Footer ─────────────────────────────────────── */
footer {
  text-align: center;
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--text-ghost);
  font-size: 0.72rem;
  letter-spacing: 0.08rem;
}

/* ── Scrollbar ──────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--green-faint); }

/* ── Responsive ─────────────────────────────────── */
@media (max-width: 640px) {
  .result-grid { grid-template-columns: 1fr; }
  .result-card.full { grid-column: 1; }
  .logo { letter-spacing: 0.3rem; }
  .bert-label { width: 130px; font-size: 0.7rem; }
}