/* =============================================================
   SPRUCE PROJECT — Design Tokens
   All design values live here. Never use raw values elsewhere.
   ============================================================= */

:root {
  /* --- Palette 8: Dark + Teal (default) --- */
  --color-bg:      #3a393f; 
  --color-surface: #2e2e33;
  --color-text:    #fdfdff;
  --color-accent:  #55b0e0;
  --color-mid:     #546a7b;
  --color-neutral: #c6c5b9;
  --color-muted:   rgba(253, 253, 255, 0.45);
  --color-border:  rgba(253, 253, 255, 0.1);

  /* --- Typography --- */
  --font-display: 'Inter', system-ui, -apple-system, sans-serif;
  --font-body:    'Inter', system-ui, -apple-system, sans-serif;

  --text-xs:   0.75rem;    /* 12px */
  --text-sm:   0.875rem;   /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg:   1.25rem;    /* 20px */
  --text-xl:   1.75rem;    /* 28px */
  --text-2xl:  2.5rem;     /* 40px */
  --text-3xl:  4rem;       /* 64px */
  --text-hero: clamp(3.5rem, 10vw, 9rem);

  --weight-light:  300;
  --weight-normal: 400;
  --weight-medium: 500;
  --weight-semi:   600;
  --weight-bold:   700;
  --weight-black:  900;

  --leading-tight:  1.05;
  --leading-snug:   1.3;
  --leading-normal: 1.65;

  --tracking-tight:  -0.03em;
  --tracking-normal:  0;
  --tracking-wide:    0.08em;

  /* --- Spacing (4px base) --- */
  --space-xs:  0.25rem;   /* 4px  */
  --space-sm:  0.5rem;    /* 8px  */
  --space-md:  1rem;      /* 16px */
  --space-lg:  2rem;      /* 32px */
  --space-xl:  4rem;      /* 64px */
  --space-2xl: 8rem;      /* 128px */

  /* --- Layout --- */
  --container-max: 1200px;
  --container-pad: var(--space-lg);
  --nav-height: 5rem;

  /* --- Transitions --- */
  --ease-out:    cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.45, 0, 0.55, 1);

  --duration-fast: 0.4s;
  --duration-base: 0.4s;
  --duration-slow: 1.2s;

  /* --- Radius --- */
  --radius-sm: 2px;
  --radius-md: 6px;
  --radius-lg: 12px;
}

/* =============================================================
   Responsive overrides
   ============================================================= */
@media (max-width: 768px) {
  :root {
    --container-pad: var(--space-md);
    --space-2xl: 4rem;
    --space-xl:  2.5rem;
  }
}