/* ===========================================================
   Stewart Law — Design tokens
   Single source of truth for typography, color, spacing,
   radii, motion, and the glass effect. All component and page
   styles consume these custom properties; nothing else should
   hard-code colors or sizes.
   =========================================================== */

:root {

	/* ---------- Typography ---------- */
	--sl-font-serif: "Source Serif 4", Georgia, "Times New Roman", serif;
	--sl-font-sans:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

	/* Fluid type scale. Display uses optical-size axis on Fraunces. */
	--sl-fs-eyebrow: 0.8125rem;   /* 13px */
	--sl-fs-small:   0.9375rem;   /* 15px */
	--sl-fs-body:    1.0625rem;   /* 17px */
	--sl-fs-large:   1.25rem;     /* 20px */
	--sl-fs-h3:      clamp(1.25rem, 1.5vw + 0.5rem, 1.625rem);
	--sl-fs-h2:      clamp(1.5rem, 2vw + 0.75rem, 2.25rem);
	--sl-fs-h1:      clamp(2rem, 3vw + 1rem, 3.5rem);
	--sl-fs-display: clamp(2.75rem, 5vw + 1rem, 5.5rem);

	--sl-lh-display: 1.05;
	--sl-lh-heading: 1.15;
	--sl-lh-body:    1.6;

	--sl-tracking-display: -0.02em;
	--sl-tracking-eyebrow:  0.18em;

	/* ---------- Color ---------- */
	--sl-color-ink:         #0F1419;
	--sl-color-ink-soft:    #3A4048;
	--sl-color-ink-mute:    #6B7280;
	--sl-color-paper:       #FBFAF7;
	--sl-color-paper-tint:  #F5F2EB;
	--sl-color-line:        #E6E3DC;
	--sl-color-line-soft:   #EFEBE3;
	--sl-color-accent:      #1F3A5F;
	--sl-color-accent-hi:   #2A4F80;
	--sl-color-accent-soft: rgba(31, 58, 95, 0.08);
	--sl-color-focus:       #2A4F80;

	/* ---------- Spacing (8px base) ---------- */
	--sl-s-1: 0.5rem;
	--sl-s-2: 1rem;
	--sl-s-3: 1.5rem;
	--sl-s-4: 2rem;
	--sl-s-5: 3rem;
	--sl-s-6: 4rem;
	--sl-s-7: 6rem;
	--sl-s-8: 8rem;

	/* ---------- Radii ---------- */
	--sl-r-sm:   8px;
	--sl-r-md:  14px;
	--sl-r-lg:  22px;
	--sl-r-pill: 999px;

	/* ---------- Layout ---------- */
	--sl-content-w: 720px;
	--sl-wide-w:   1200px;
	--sl-narrow-w:  600px;

	/* ---------- Motion ---------- */
	--sl-ease:    cubic-bezier(0.2, 0.6, 0.2, 1);
	--sl-dur-1:   180ms;
	--sl-dur-2:   320ms;
	--sl-dur-3:   600ms;

	/* ---------- Glass effect (used sparingly) ---------- */
	--sl-glass-bg:     rgba(255, 255, 255, 0.55);
	--sl-glass-bg-dim: rgba(255, 255, 255, 0.40);
	--sl-glass-blur:   saturate(180%) blur(20px);
	--sl-glass-border: 1px solid rgba(255, 255, 255, 0.65);
	--sl-glass-shadow: 0 1px 1px rgba(0, 0, 0, 0.04), 0 8px 32px rgba(15, 20, 25, 0.06);

	/* ---------- Shadows (non-glass) ---------- */
	--sl-shadow-sm: 0 1px 2px rgba(15, 20, 25, 0.05);
	--sl-shadow-md: 0 4px 14px rgba(15, 20, 25, 0.06);
	--sl-shadow-lg: 0 12px 40px rgba(15, 20, 25, 0.08);
}

/* Reduced-motion respects user preference. */
@media (prefers-reduced-motion: reduce) {
	:root {
		--sl-dur-1: 0ms;
		--sl-dur-2: 0ms;
		--sl-dur-3: 0ms;
	}
}

/* ---------- Page baseline ---------- */
body.stewartlaw-front-page {
	font-family: var(--sl-font-sans);
	font-size: var(--sl-fs-body);
	line-height: var(--sl-lh-body);
	color: var(--sl-color-ink);
	background: var(--sl-color-paper);
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
	text-rendering: optimizeLegibility;
}

body.stewartlaw-front-page h1,
body.stewartlaw-front-page h2,
body.stewartlaw-front-page h3 {
	font-family: var(--sl-font-serif);
	font-weight: 500;
	color: var(--sl-color-ink);
	line-height: var(--sl-lh-heading);
	letter-spacing: -0.005em;
}

body.stewartlaw-front-page :is(p, li) {
	color: var(--sl-color-ink-soft);
}

body.stewartlaw-front-page a {
	color: var(--sl-color-accent);
	text-decoration: none;
	transition: color var(--sl-dur-1) var(--sl-ease);
}

body.stewartlaw-front-page a:hover,
body.stewartlaw-front-page a:focus-visible {
	color: var(--sl-color-accent-hi);
}

body.stewartlaw-front-page :focus-visible {
	outline: 2px solid var(--sl-color-focus);
	outline-offset: 3px;
	border-radius: 2px;
}