:root {
  /* Backgrounds */
  --bg-base:      #0c0e14;
  --bg-surface:   #111318;
  --bg-elevated:  #16191f;
  --bg-overlay:   #1c2028;
  --bg-hover:     #1e2330;

  /* Borders */
  --border-subtle:  rgba(255,255,255,0.05);
  --border-default: rgba(255,255,255,0.09);
  --border-strong:  rgba(255,255,255,0.15);

  /* Brand — Índigo elétrico + Âmbar quente */
  --accent:        #6366f1;
  --accent-light:  #818cf8;
  --accent-dim:    rgba(99,102,241,0.15);
  --accent-glow:   rgba(99,102,241,0.35);

  --amber:         #f59e0b;
  --amber-light:   #fbbf24;
  --amber-dim:     rgba(245,158,11,0.15);

  --emerald:       #10b981;
  --emerald-dim:   rgba(16,185,129,0.15);

  --rose:          #f43f5e;
  --rose-dim:      rgba(244,63,94,0.15);

  --sky:           #38bdf8;
  --sky-dim:       rgba(56,189,248,0.12);

  /* Text */
  --text-primary:   #f1f5f9;
  --text-secondary: #94a3b8;
  --text-tertiary:  #4b5563;
  --text-muted:     #374151;

  /* Fonts */
  --font-sans: 'DM Sans', sans-serif;
  --font-mono: 'DM Mono', monospace;

  /* Radius */
  --r-sm:  6px;
  --r-md:  10px;
  --r-lg:  14px;
  --r-xl:  20px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.5);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.6);
  --shadow-accent: 0 0 24px rgba(99,102,241,0.25);
}

/* LIGHT MODE */
:root.light {
  --bg-base:      #f1f3f8;
  --bg-surface:   #ffffff;
  --bg-elevated:  #f7f8fb;
  --bg-overlay:   #eceef4;
  --bg-hover:     #e4e8f2;

  --border-subtle:  rgba(0,0,0,0.06);
  --border-default: rgba(0,0,0,0.10);
  --border-strong:  rgba(0,0,0,0.18);

  --accent:        #4f52e0;
  --accent-light:  #6366f1;
  --accent-dim:    rgba(79,82,224,0.10);
  --accent-glow:   rgba(79,82,224,0.18);

  --amber:         #d97706;
  --amber-light:   #f59e0b;
  --amber-dim:     rgba(217,119,6,0.10);

  --emerald:       #059669;
  --emerald-dim:   rgba(5,150,105,0.10);

  --rose:          #e11d48;
  --rose-dim:      rgba(225,29,72,0.10);

  --sky:           #0284c7;
  --sky-dim:       rgba(2,132,199,0.10);

  --text-primary:   #0f172a;
  --text-secondary: #475569;
  --text-tertiary:  #94a3b8;
  --text-muted:     #cbd5e1;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.07);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.09);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.11);
  --shadow-accent: 0 0 20px rgba(79,82,224,0.12);
}

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

body, body * {
  transition: background-color 0.28s ease, border-color 0.28s ease,
              color 0.2s ease, box-shadow 0.28s ease;
}

body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 99px; }