/* ==========================================================================
   Design Tokens — Atlantic
   Altere as variáveis aqui para propagar as mudanças por todo o site.
   ========================================================================== */

:root {
  /* --------------------------------------------------------------------------
     COLORS
     -------------------------------------------------------------------------- */

  /* Background layers */
  --color-bg: #0a0a1a;
  --color-bg-alt: #0d1117;
  --color-bg-elevated: #11142a;

  /* Surfaces (cards, inputs) */
  --color-surface: rgba(255, 255, 255, 0.04);
  --color-surface-hover: rgba(255, 255, 255, 0.07);
  --color-surface-strong: rgba(255, 255, 255, 0.08);
  --color-border: rgba(255, 255, 255, 0.08);
  --color-border-strong: rgba(255, 255, 255, 0.14);

  /* Accents */
  --color-cyan: #00d4ff;
  --color-cyan-soft: rgba(0, 212, 255, 0.15);
  --color-purple: #7c3aed;
  --color-purple-soft: rgba(124, 58, 237, 0.15);
  --color-green: #10b981;
  --color-green-soft: rgba(16, 185, 129, 0.15);

  /* Text */
  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-text-strong: #f8fafc;
  --color-text-inverse: #0a0a1a;

  /* Status */
  --color-success: #10b981;
  --color-error: #ef4444;

  /* Gradients */
  --gradient-brand: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-purple) 100%);
  --gradient-brand-hover: linear-gradient(135deg, #1ad9ff 0%, #8a4df0 100%);
  --gradient-glow: radial-gradient(circle at 50% 0%, rgba(0, 212, 255, 0.12), transparent 60%);

  /* --------------------------------------------------------------------------
     TYPOGRAPHY
     -------------------------------------------------------------------------- */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', sans-serif;

  --fs-xs: 0.75rem;     /* 12px */
  --fs-sm: 0.875rem;    /* 14px */
  --fs-base: 1rem;      /* 16px */
  --fs-lg: 1.125rem;    /* 18px */
  --fs-xl: 1.25rem;     /* 20px */
  --fs-2xl: 1.5rem;     /* 24px */
  --fs-3xl: 1.875rem;   /* 30px */
  --fs-4xl: 2.25rem;    /* 36px */
  --fs-5xl: 3rem;       /* 48px */
  --fs-6xl: 3.75rem;    /* 60px */
  --fs-7xl: 4.5rem;     /* 72px */

  --lh-tight: 1.1;
  --lh-snug: 1.3;
  --lh-normal: 1.6;
  --lh-relaxed: 1.75;

  --fw-regular: 400;
  --fw-medium: 500;
  --fw-semibold: 600;
  --fw-bold: 700;

  /* --------------------------------------------------------------------------
     SPACING
     -------------------------------------------------------------------------- */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;

  /* --------------------------------------------------------------------------
     LAYOUT
     -------------------------------------------------------------------------- */
  --container-max: 1200px;
  --container-narrow: 800px;
  --container-padding: 1.5rem;

  --header-height: 72px;

  /* --------------------------------------------------------------------------
     RADII
     -------------------------------------------------------------------------- */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* --------------------------------------------------------------------------
     SHADOWS / GLOWS
     -------------------------------------------------------------------------- */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.25);
  --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.35);
  --shadow-xl: 0 24px 60px rgba(0, 0, 0, 0.5);

  --glow-cyan: 0 0 30px rgba(0, 212, 255, 0.35);
  --glow-purple: 0 0 30px rgba(124, 58, 237, 0.35);
  --glow-brand: 0 0 40px rgba(0, 212, 255, 0.25), 0 0 80px rgba(124, 58, 237, 0.15);

  /* --------------------------------------------------------------------------
     TRANSITIONS
     -------------------------------------------------------------------------- */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);

  --t-fast: 150ms;
  --t-base: 250ms;
  --t-slow: 400ms;

  /* --------------------------------------------------------------------------
     Z-INDEX
     -------------------------------------------------------------------------- */
  --z-base: 1;
  --z-dropdown: 10;
  --z-sticky: 20;
  --z-header: 50;
  --z-overlay: 80;
  --z-modal: 90;
  --z-floating: 100;
}