/* ============================================================
   ÚNICA — Spacing, radius, shadow, motion
   Estética da Precisão: zero ornamento, geometria calma, sombras discretas.
   ============================================================ */
:root {
  /* espaçamento (base 4px) */
  --space-0:  0;
  --space-1:  0.25rem;  /* 4 */
  --space-2:  0.5rem;   /* 8 */
  --space-3:  0.75rem;  /* 12 */
  --space-4:  1rem;     /* 16 */
  --space-5:  1.5rem;   /* 24 */
  --space-6:  2rem;     /* 32 */
  --space-7:  3rem;     /* 48 */
  --space-8:  4rem;     /* 64 */
  --space-9:  6rem;     /* 96 */
  --space-10: 8rem;     /* 128 */

  /* raios — geometria contida, botões em cápsula */
  --radius-xs:   4px;
  --radius-sm:   8px;
  --radius-md:   12px;
  --radius-lg:   18px;
  --radius-xl:   28px;
  --radius-pill: 999px;
  --radius-card: var(--radius-lg);

  /* sombras — discretas, frias, sem drama no claro */
  --shadow-xs: 0 1px 2px rgba(6, 16, 15, 0.06);
  --shadow-sm: 0 2px 8px rgba(6, 16, 15, 0.06);
  --shadow-md: 0 8px 24px rgba(6, 16, 15, 0.08);
  --shadow-lg: 0 18px 48px rgba(6, 16, 15, 0.12);
  --shadow-brand: 0 10px 30px rgba(0, 153, 139, 0.22);

  /* anéis de foco */
  --ring-width: 3px; /* @kind spacing */
  --ring-color: rgba(42, 168, 154, 0.45); /* @kind color */

  /* movimento — Clareza Calma: fades suaves, sem bounce */
  --ease-standard: cubic-bezier(0.22, 0.61, 0.36, 1); /* @kind other */
  --ease-out:      cubic-bezier(0.16, 1, 0.3, 1); /* @kind other */
  --dur-fast:   140ms; /* @kind other */
  --dur-base:   220ms; /* @kind other */
  --dur-slow:   360ms; /* @kind other */

  /* container */
  --container-max: 1200px; /* @kind spacing */
  --container-pad: var(--space-5); /* @kind spacing */
}