frontend/src/index.css

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

/* ── GLOBAL ── */
:root {
  --bg:         #06040f;
  --bg2:        #0d0b1e;
  --surface:    rgba(255,255,255,0.03);
  --border:     rgba(139,92,246,0.18);
  --border-h:   rgba(139,92,246,0.4);
  --indigo:     #6366f1;
  --violet:     #8b5cf6;
  --violet-l:   #a78bfa;
  --violet-ll:  #c4b5fd;
  --text:       #e2e0f0;
  --text-2:     #9d9abf;
  --text-3:     #6d6a8a;
  --text-4:     #3d3b56;
  --green:      #34d399;
  --green-l:    #6ee7b7;
  --red:        #ef4444;
  --red-l:      #fca5a5;
  --amber:      #f59e0b;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  background:
    radial-gradient(ellipse 120% 80% at 10% -10%, rgba(99,102,241,.18) 0%, transparent 55%),
    radial-gradient(ellipse 80% 60% at 90% 110%, rgba(139,92,246,.14) 0%, transparent 55%),
    linear-gradient(160deg, var(--bg) 0%, var(--bg2) 40%, #0a0818 100%);
  min-height: 100vh;
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: rgba(255,255,255,.02); }
::-webkit-scrollbar-thumb { background: rgba(139,92,246,.3); border-radius: 100px; }
::-webkit-scrollbar-thumb:hover { background: rgba(139,92,246,.5); }

/* ── KEYFRAMES ── */
@keyframes fadeSlideDown {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes expandLine {
  from { width: 0; opacity: 0; }
  to   { width: 80px; opacity: 1; }
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 6px rgba(99,102,241,.3); }
  50%       { box-shadow: 0 0 18px rgba(99,102,241,.6); }
}
@keyframes dot-pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 4px var(--green); }
  50%       { opacity: .6; box-shadow: 0 0 12px var(--green); }
}
@keyframes spin {
  to { transform: rotate(360deg); }
}
@keyframes shimmer-bar {
  0%   { background-position: -400px 0; }
  100% { background-position: 400px 0; }
}
@keyframes score-fill {
  from { width: 0%; }
  to   { width: var(--target-w); }
}
@keyframes balloon {
  0%   { transform: translateY(100vh) scale(.6); opacity: 1; }
  100% { transform: translateY(-120vh) scale(1); opacity: 0; }
}