/* ============================================================
   Uncharted Strategy — Spacing, radius, border, shadow, layout
   The brand is clean and editorial: generous white space,
   restrained shadows, a signature teal frame with orange
   corner accents.
   ============================================================ */

: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-12:  7rem;     /* 112 */

  /* ---- Radius — restrained, mostly square/soft ---- */
  --radius-none: 0;
  --radius-sm:   3px;
  --radius-md:   6px;
  --radius-lg:   10px;
  --radius-xl:   16px;
  --radius-pill: 999px;

  /* ---- Border widths ---- */
  --border-hairline: 1px;
  --border-thin:     2px;
  --border-frame-w:  3px;   /* signature teal frame stroke */

  /* ---- Shadows — soft, low, cool-tinted; never heavy ---- */
  --shadow-xs:   0 1px 2px rgba(15, 42, 51, 0.06);
  --shadow-sm:   0 2px 6px rgba(15, 42, 51, 0.08);
  --shadow-md:   0 6px 18px rgba(15, 42, 51, 0.10);
  --shadow-lg:   0 16px 40px rgba(15, 42, 51, 0.14);
  --shadow-focus: 0 0 0 3px var(--focus-ring);

  /* ---- Containment ---- */
  --frame-inset:   12px;   /* gap between teal frame and edge */
  --corner-accent: 28px;   /* length of the single orange corner tick */

  /* ---- Layout ---- */
  --container-sm:  640px;
  --container-md:  860px;
  --container-lg:  1140px;
  --container-xl:  1320px;
  --logo-clearspace: 1em;  /* clear space = height of bar in UNCHARTED */

  /* ---- Motion — quiet, confident, no bounce ---- */
  --ease-standard: cubic-bezier(0.4, 0.0, 0.2, 1); /* @kind other */
  --ease-out:      cubic-bezier(0.16, 1, 0.3, 1); /* @kind other */
  --dur-fast:      120ms; /* @kind other */
  --dur-base:      220ms; /* @kind other */
  --dur-slow:      420ms; /* @kind other */
}