/* ══════════════════════════════════════════════════════════════════════════
   Lumina Graph — Custom Styles
   Talentbank Tech Hackathon 2026
   ══════════════════════════════════════════════════════════════════════════ */

:root {
  --bg:       #0B1117;
  --surface:  #111827;
  --surface2: #1a2332;
  --border:   rgba(255,255,255,0.08);
  --primary:  #6C5CE7;
  --primary-light: rgba(108,92,231,0.15);
  --accent:   #FDE047;
  --text:     #E6F1F2;
  --muted:    #88A3A5;
  --success:  #22C55E;
  --warning:  #F59E0B;
  --danger:   #EF4444;
}

/* ── Base ──────────────────────────────────────────────────────────────── */
* { box-sizing: border-box; }

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: 'Inter', system-ui, sans-serif;
}

/* ── Nav glassmorphism ─────────────────────────────────────────────────── */
.nav-glass {
  background: rgba(11, 17, 23, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

/* ── Cards ─────────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
}

.card-glass {
  background: rgba(17, 24, 39, 0.6);
  border: 1px solid var(--border);
  border-radius: 12px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.card-hover {
  transition: all 0.2s ease;
  cursor: pointer;
}
.card-hover:hover {
  border-color: rgba(108,92,231,0.4);
  transform: translateY(-1px);
  box-shadow: 0 4px 24px rgba(108,92,231,0.15);
}

/* ── Gradient text ─────────────────────────────────────────────────────── */
.gradient-text {
  background: linear-gradient(135deg, #6C5CE7, #a78bfa, #FDE047);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-subtle {
  background: linear-gradient(135deg, #a78bfa, #E6F1F2);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Hero glow ─────────────────────────────────────────────────────────── */
.hero-glow {
  position: relative;
}
.hero-glow::before {
  content: '';
  position: absolute;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse at center, rgba(108,92,231,0.2) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

/* ── Score ring ────────────────────────────────────────────────────────── */
.score-ring {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ── Skill badge ───────────────────────────────────────────────────────── */
.skill-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 500;
  border: 1px solid;
  transition: all 0.15s;
}

.skill-explicit  { background: rgba(108,92,231,0.12); border-color: rgba(108,92,231,0.35); color: #a78bfa; }
.skill-inferred  { background: rgba(253,224,71,0.08); border-color: rgba(253,224,71,0.25); color: #FDE047; }
.skill-verified  { background: rgba(34,197,94,0.10);  border-color: rgba(34,197,94,0.30);  color: #4ade80; }
.skill-emerging  { background: rgba(245,158,11,0.10); border-color: rgba(245,158,11,0.30); color: #fbbf24; }

/* ── Progress bar ──────────────────────────────────────────────────────── */
.progress-bar {
  height: 6px;
  border-radius: 999px;
  background: rgba(255,255,255,0.07);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), #a78bfa);
  transition: width 1s ease;
}
.progress-fill-green  { background: linear-gradient(90deg, #22C55E, #4ade80); }
.progress-fill-amber  { background: linear-gradient(90deg, #F59E0B, #fbbf24); }
.progress-fill-accent { background: linear-gradient(90deg, #FDE047, #fef08a); }

/* ── Step list (AI processing) ─────────────────────────────────────────── */
.ai-step {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  opacity: 0.35;
  transition: all 0.3s;
}
.ai-step.active  { opacity: 1; }
.ai-step.done    { opacity: 0.7; }

.ai-step-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--muted);
  flex-shrink: 0;
  transition: background 0.3s;
}
.ai-step.active .ai-step-dot  { background: var(--primary); box-shadow: 0 0 8px var(--primary); }
.ai-step.done   .ai-step-dot  { background: var(--success); }

/* ── Candidate card ────────────────────────────────────────────────────── */
.candidate-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem;
  transition: all 0.2s;
  cursor: pointer;
}
.candidate-card:hover,
.candidate-card.selected {
  border-color: rgba(108,92,231,0.5);
  background: rgba(108,92,231,0.05);
}
.candidate-card.selected { box-shadow: 0 0 0 2px rgba(108,92,231,0.3); }

/* ── Score circle ──────────────────────────────────────────────────────── */
.score-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: 2px solid;
  font-weight: 700;
  font-size: 1rem;
  flex-shrink: 0;
}

/* ── Modal / drawer ────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.modal-overlay.open {
  opacity: 1;
  pointer-events: all;
}
.modal-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
  max-width: 680px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.95);
  transition: transform 0.2s;
}
.modal-overlay.open .modal-box { transform: scale(1); }

/* ── Architecture diagram ──────────────────────────────────────────────── */
.arch-node {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 1rem;
  text-align: center;
  font-size: 0.78rem;
  font-weight: 500;
  transition: all 0.2s;
}
.arch-node.primary { border-color: rgba(108,92,231,0.4); background: rgba(108,92,231,0.1); }
.arch-node.accent  { border-color: rgba(253,224,71,0.4); background: rgba(253,224,71,0.08); color: #FDE047; }
.arch-node.success { border-color: rgba(34,197,94,0.35); background: rgba(34,197,94,0.08); }

.arch-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 1.2rem;
}

/* ── Gap badge ─────────────────────────────────────────────────────────── */
.gap-badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.68rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.gap-high   { background: rgba(239,68,68,0.15);  color: #f87171; }
.gap-medium { background: rgba(245,158,11,0.15); color: #fbbf24; }
.gap-low    { background: rgba(34,197,94,0.12);  color: #4ade80; }

/* ── Section label ─────────────────────────────────────────────────────── */
.section-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

/* ── Pulse animation ───────────────────────────────────────────────────── */
@keyframes pulse-ring {
  0%   { box-shadow: 0 0 0 0px rgba(108,92,231,0.4); }
  70%  { box-shadow: 0 0 0 10px rgba(108,92,231,0); }
  100% { box-shadow: 0 0 0 0px rgba(108,92,231,0); }
}
.pulse { animation: pulse-ring 2s infinite; }

/* ── Fade in ───────────────────────────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-in { animation: fadeIn 0.4s ease forwards; }

/* ── Scrollbar ─────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 999px; }

/* ── Button ────────────────────────────────────────────────────────────── */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  background: var(--primary);
  color: white;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all 0.15s;
}
.btn-primary:hover { background: #5b4dd4; transform: translateY(-1px); box-shadow: 0 4px 16px rgba(108,92,231,0.4); }

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  background: transparent;
  color: var(--text);
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.15s;
}
.btn-outline:hover { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.2); }

/* ── Tooltip ───────────────────────────────────────────────────────────── */
.tooltip {
  position: relative;
}
.tooltip:hover::after {
  content: attr(data-tip);
  position: absolute;
  bottom: 110%;
  left: 50%;
  transform: translateX(-50%);
  white-space: nowrap;
  background: #1e293b;
  color: var(--text);
  padding: 4px 8px;
  border-radius: 6px;
  font-size: 0.72rem;
  pointer-events: none;
  z-index: 999;
}

/* ── Chart container ───────────────────────────────────────────────────── */
.chart-container {
  position: relative;
  width: 100%;
}

/* ── Demo flow step ────────────────────────────────────────────────────── */
.demo-step {
  display: flex;
  gap: 12px;
  padding: 12px 0;
}
.demo-step-num {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary-light);
  border: 1px solid rgba(108,92,231,0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: #a78bfa;
  flex-shrink: 0;
}

/* ── Responsive adjustments ────────────────────────────────────────────── */
@media (max-width: 640px) {
  .hero-glow::before { width: 300px; height: 200px; }
}