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

:root {
  --bg:        #08091a;
  --bg-deep:   #050610;
  --card:      #0e1229;
  --border:    rgba(99, 102, 241, 0.15);
  --border-h:  rgba(99, 102, 241, 0.4);
  --text:      #e2e8f0;
  --muted:     #64748b;
  --muted2:    #475569;
  --accent:    #6366f1;
  --accent-d:  #4f46e5;
  --glow:      rgba(99, 102, 241, 0.2);
  --danger:    #f43f5e;
  --danger-bg: rgba(244, 63, 94, 0.08);
  --safe:      #10b981;
  --safe-bg:   rgba(16, 185, 129, 0.08);
  --yellow:    #eab308;
  --yellow-bg: rgba(234, 179, 8, 0.08);
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  /* subtle dot grid */
  background-image: radial-gradient(rgba(99,102,241,0.06) 1px, transparent 1px);
  background-size: 32px 32px;
}

/* ── Header ─────────────────────────────────────────────────────────────── */
.header {
  border-bottom: 1px solid var(--border);
  background: rgba(8, 9, 26, 0.8);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.logo-icon {
  font-size: 2rem;
  filter: drop-shadow(0 0 12px rgba(99, 102, 241, 0.6));
}

.logo-text {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #a5b4fc, #6366f1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-sub { font-size: .78rem; color: var(--muted); margin-top: .1rem; }

.badges { display: flex; gap: .5rem; flex-wrap: wrap; }

.badge {
  font-size: .68rem;
  font-weight: 500;
  padding: .2rem .65rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--muted);
  letter-spacing: .02em;
}

/* ── Main Grid ───────────────────────────────────────────────────────────── */
.main {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 1.5rem;
  padding: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  flex: 1;
}

.panel {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.75rem;
}

.panel-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  padding-bottom: .75rem;
  border-bottom: 1px solid var(--border);
}

/* ── Fields ──────────────────────────────────────────────────────────────── */
.field { margin-bottom: 1.5rem; }

.field-label {
  display: block;
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
  margin-bottom: .4rem;
}

.field-hint { font-size: .8rem; color: var(--muted2); margin-bottom: .75rem; }

.accent-text { color: var(--accent); }

/* ── Module Grid ─────────────────────────────────────────────────────────── */
.module-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .5rem;
}

.module-chip {
  display: flex;
  align-items: center;
  gap: .5rem;
  padding: .6rem .75rem;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--muted);
  font-family: inherit;
  font-size: .85rem;
  cursor: pointer;
  transition: all .2s;
  text-align: left;
}

.module-chip:hover {
  border-color: var(--border-h);
  color: var(--text);
  background: rgba(99,102,241,0.05);
}

.module-chip.active {
  border-color: var(--accent);
  background: var(--glow);
  color: var(--text);
  box-shadow: 0 0 10px rgba(99,102,241,0.15);
}

.chip-icon { font-size: 1rem; }

/* ── Radio Group ─────────────────────────────────────────────────────────── */
.radio-group { display: flex; flex-direction: column; gap: .4rem; }

.radio-opt {
  display: flex;
  align-items: center;
  gap: .6rem;
  padding: .5rem .7rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: .875rem;
  transition: background .15s;
}

.radio-opt:hover { background: rgba(255,255,255,0.03); }

.radio-opt input[type="radio"] { accent-color: var(--accent); }

.radio-opt em { color: var(--muted2); font-style: normal; font-size: .78rem; margin-left: auto; }

/* ── Slider ──────────────────────────────────────────────────────────────── */
.slider {
  width: 100%;
  -webkit-appearance: none;
  height: 4px;
  border-radius: 4px;
  background: var(--border);
  outline: none;
  cursor: pointer;
  margin-top: .5rem;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--glow);
  cursor: pointer;
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: .72rem;
  color: var(--muted2);
  margin-top: .3rem;
}

/* ── Predict Button ──────────────────────────────────────────────────────── */
.predict-btn {
  width: 100%;
  padding: .875rem;
  background: linear-gradient(135deg, var(--accent), var(--accent-d));
  border: none;
  border-radius: 12px;
  color: #fff;
  font-size: .95rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  transition: all .2s;
  box-shadow: 0 4px 20px rgba(99,102,241,0.35);
  margin-bottom: 1rem;
}

.predict-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(99,102,241,0.5);
}

.predict-btn:active { transform: translateY(0); }

.predict-btn:disabled { opacity: .6; cursor: wait; }

.disclaimer { font-size: .75rem; color: var(--muted2); text-align: center; line-height: 1.5; }

/* ── Spinner ─────────────────────────────────────────────────────────────── */
.spinner {
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .6s linear infinite;
}

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

/* ── Results Panel ───────────────────────────────────────────────────────── */
.results-panel { display: flex; flex-direction: column; min-height: 500px; }

/* ── Empty State ─────────────────────────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex: 1;
  text-align: center;
  color: var(--muted);
  padding: 3rem 2rem;
}

.empty-icon { font-size: 3.5rem; margin-bottom: 1.25rem; opacity: .7; }

.empty-state h3 { font-size: 1.1rem; color: var(--text); margin-bottom: .5rem; }

.empty-state > p { font-size: .875rem; max-width: 320px; line-height: 1.6; margin-bottom: 2rem; }

.empty-flow {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
  justify-content: center;
}

.flow-step {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .8rem;
  padding: .4rem .75rem;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.flow-step span {
  width: 20px; height: 20px;
  background: var(--accent);
  border-radius: 50%;
  font-size: .7rem;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
}

.flow-arrow { color: var(--muted2); }

/* ── Stats Row ───────────────────────────────────────────────────────────── */
.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 1.1rem;
  text-align: center;
}

.stat-value { font-size: 2rem; font-weight: 700; line-height: 1; }
.stat-label { font-size: .72rem; color: var(--muted); margin-top: .3rem; text-transform: uppercase; letter-spacing: .05em; }

.stat-run  { background: var(--danger-bg); border-color: rgba(244,63,94,0.2); }
.stat-skip { background: var(--safe-bg);   border-color: rgba(16,185,129,0.2); }
.stat-save { background: var(--yellow-bg); border-color: rgba(234,179,8,0.2); }

.stat-run  .stat-value { color: var(--danger); }
.stat-skip .stat-value { color: var(--safe); }
.stat-save .stat-value { color: var(--yellow); }

/* ── Results Grid ────────────────────────────────────────────────────────── */
.results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.col-title {
  font-size: .82rem;
  font-weight: 600;
  margin-bottom: .75rem;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.danger-text { color: var(--danger); }
.safe-text   { color: var(--safe); }

/* ── Test Cards ──────────────────────────────────────────────────────────── */
.test-list { display: flex; flex-direction: column; gap: .4rem; }

.test-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .55rem .85rem;
  border-radius: 9px;
  font-size: .82rem;
  font-family: 'Inter', monospace;
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
  animation: fadeUp .25s ease both;
}

.test-card.run-card  { border-left: 3px solid var(--danger); }
.test-card.skip-card { border-left: 3px solid var(--safe); opacity: .65; }

.risk-badge {
  font-size: .68rem;
  font-weight: 700;
  padding: .15rem .5rem;
  border-radius: 100px;
  white-space: nowrap;
}

.risk-high { background: rgba(244,63,94,0.12); color: var(--danger); }
.risk-low  { background: rgba(16,185,129,0.12); color: var(--safe); }

/* ── Footer ──────────────────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 1rem 2rem;
  color: var(--muted2);
  font-size: .75rem;
}

/* ── Utilities ───────────────────────────────────────────────────────────── */
.hidden { display: none !important; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 860px) {
  .main { grid-template-columns: 1fr; }
  .header-inner { flex-direction: column; gap: .75rem; }
  .badges { justify-content: center; }
}

@media (max-width: 520px) {
  .results-grid { grid-template-columns: 1fr; }
  .stats-row { grid-template-columns: repeat(3, 1fr); }
}