/* SUMA — Spacing, radii, shadows, borders, motion
----------------------------------------------------------------
Generous, calm spacing. Hairline cards in the app; pill controls,
12px panels and hard-edged bands on the web; 2–3px corners on every
cut-paper shape. No text shadows anywhere. */

:root {
  /* ---- Spacing scale (4px base) --------------------------------- */
  --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:  2.5rem;   /* 40 */
  --space-8:  3rem;     /* 48 */
  --space-9:  4rem;     /* 64 */
  --space-10: 5rem;     /* 80 */
  --space-11: 6rem;     /* 96 */
  --space-12: 8rem;     /* 128 */

  /* ---- Radii ---------------------------------------------------- */
  --radius-none:  0;      /* editorial bands, result tiles, charter cards — hard edges */
  --radius-paper: 3px;    /* every cut-paper shape has a small corner radius */
  --radius-sm:    4px;
  --radius-frame: 6px;    /* three-pane illustration frames */
  --radius-md:    8px;    /* dashboard cards, dropdown panels */
  --radius-lg:    12px;   /* web panels, capability cards, grain boxes */
  --radius-panel: 12px;   /* alias of --radius-lg */
  --radius-xl:    18px;
  --radius-pill:  999px;  /* every button, chip and pill */

  /* ---- Borders -------------------------------------------------- */
  --border-width: 1px;
  --border-hairline: 1px solid var(--border);
  --border-hairline-strong: 1px solid var(--border-strong);

  /* ---- Shadows (low, cool, green-tinted) ------------------------ */
  --shadow-xs: 0 1px 2px rgba(16,49,42,0.05);
  --shadow-sm: 0 1px 3px rgba(16,49,42,0.06), 0 1px 2px rgba(16,49,42,0.04);
  --shadow-md: 0 6px 20px rgba(16,49,42,0.08);
  --shadow-lg: 0 16px 40px rgba(16,49,42,0.12);
  --shadow-panel: 0 18px 44px rgba(16,49,42,0.2), 0 2px 8px rgba(16,49,42,0.08);   /* nav dropdowns */
  --shadow-frame: 0 22px 54px rgba(16,49,42,0.22);                                 /* three-pane frames */
  --shadow-card-lift: 0 1px 0 rgba(16,49,42,0.06), 0 18px 40px -18px rgba(1,20,15,0.55); /* result cards */
  --shadow-focus: 0 0 0 3px var(--focus-ring);
  /* Cut-paper drop shadows (SVG feDropShadow equivalents, light scenes) */
  --shadow-paper-far:  0 3px 6px rgba(16,49,42,0.13);
  --shadow-paper-mid:  0 6px 10px rgba(16,49,42,0.17);
  --shadow-paper-near: 0 10px 16px rgba(16,49,42,0.20);

  /* ---- Layout --------------------------------------------------- */
  --container-narrow: 720px;
  --container-text:   860px;
  --container-wide:   1200px;
  --container-web:    1240px;  /* the website column */
  --container-max:    1320px;
  --sidebar-width:    248px;

  /* ---- Motion --------------------------------------------------- */
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);   /* @kind other */
  --ease-out:      cubic-bezier(0.16, 1, 0.3, 1);  /* @kind other */
  --ease-in-out:   cubic-bezier(0.65, 0, 0.35, 1); /* @kind other */
  --ease-suma:     cubic-bezier(0.33, 1, 0.68, 1); /* @kind other */
  --duration-fast:   120ms;  /* @kind other */
  --duration-base:   220ms;  /* @kind other */
  --duration-ui:     260ms;  /* @kind other */
  --duration-slow:   420ms;  /* @kind other */
  --duration-reveal: 720ms;  /* @kind other */
}