/* ===========================================================================
   AERONOVA — Spacing, radii, shadows, motion, layout
   Aerospace = precise & calm. Tight-to-moderate radii, hairline borders,
   restrained elevation. Glow used only on the dawn accent, sparingly.
   =========================================================================== */

:root {
  /* --- Spacing scale (4px base) ----------------------------------------- */
  --space-0:   0;
  --space-1:   0.25rem;  /*  4px */
  --space-2:   0.5rem;   /*  8px */
  --space-3:   0.75rem;  /* 12px */
  --space-4:   1rem;     /* 16px */
  --space-5:   1.5rem;   /* 24px */
  --space-6:   2rem;     /* 32px */
  --space-7:   3rem;     /* 48px */
  --space-8:   4rem;     /* 64px */
  --space-9:   6rem;     /* 96px */
  --space-10:  8rem;     /* 128px */

  /* --- Radii ------------------------------------------------------------ */
  --radius-xs:   6px;
  --radius-sm:   10px;
  --radius-md:   14px;
  --radius-lg:   20px;
  --radius-xl:   28px;
  --radius-2xl:  40px;
  --radius-pill: 999px;

  /* --- Borders ---------------------------------------------------------- */
  --border-width: 1px; /* @kind other */

  /* --- Elevation (dark UI — subtle, cool-shadowed) ---------------------- */
  --shadow-sm:  0 1px 2px rgba(7, 6, 20, 0.40);
  --shadow-md:  0 8px 24px -8px rgba(7, 6, 20, 0.55);
  --shadow-lg:  0 24px 60px -16px rgba(7, 6, 20, 0.65);
  --shadow-xl:  0 40px 120px -28px rgba(7, 6, 20, 0.75);
  /* Dawn glow — for the hero horizon & primary CTA only. Keep it quiet. */
  --glow-dawn:  0 10px 40px -12px rgba(233, 153, 109, 0.45);

  /* --- Layout ----------------------------------------------------------- */
  --container:      1200px; /* @kind other */
  --container-wide: 1400px; /* @kind other */
  --container-text: 720px; /* @kind other */
  --gutter:         clamp(1.25rem, 5vw, 4rem); /* @kind other */
  --section-y:      clamp(4rem, 8vw, 8rem); /* @kind other */

  /* --- Motion (calm, engineered — no bounce) ---------------------------- */
  --ease-out:   cubic-bezier(0.22, 0.61, 0.36, 1); /* @kind other */
  --ease-inout: cubic-bezier(0.65, 0.05, 0.36, 1); /* @kind other */
  --dur-fast:   140ms; /* @kind other */
  --dur-base:   240ms; /* @kind other */
  --dur-slow:   520ms; /* @kind other */
  --dur-cinematic: 900ms; /* @kind other */

  /* --- Z-index ---------------------------------------------------------- */
  --z-base:    1; /* @kind other */
  --z-sticky:  100; /* @kind other */
  --z-nav:     200; /* @kind other */
  --z-overlay: 900; /* @kind other */
  --z-modal:   1000; /* @kind other */
  --z-toast:   1100; /* @kind other */
}