/* ==========================================================================
   MemoraFind — design tokens & base layer
   --------------------------------------------------------------------------
   Loaded before styles.css. Holds the colour, type and spacing system, the
   reset, and the accessible focus style. No utilities, no page layout.

   Colour direction (owner's brief):
     burgundy  hsl(358, 72%, 21%)  ~ #5c0f12   headers, nav, headings, links
     gold      hsl(45, 95%, 45%)   ~ #e0a906   fills, borders, accents, focus
     page bg   #faf8f3                         warm off-white

   CONTRAST RULE (why gold is never body or link text on the cream page):
     burgundy on #faf8f3 .......... 12.9 : 1  (AAA, used for text + links)
     near-black on gold fill ......  8.4 : 1  (AAA, used for button labels)
     gold on burgundy ..............  6.4 : 1  (AA, used for gold text/icons
                                               inside the burgundy header)
     gold on #faf8f3 ...............  2.0 : 1  (FAILS — so gold is only used
                                               here as a fill, a border, an
                                               underline or a highlight wash,
                                               never for the text itself)
   ========================================================================== */

:root {
    /* ---- Brand colour -------------------------------------------------- */
    --burgundy: hsl(358, 72%, 21%);         /* #5c0f12  primary */
    --burgundy-deep: hsl(358, 72%, 15%);    /* pressed / footer ground */
    --burgundy-mid: hsl(358, 48%, 32%);     /* secondary text on cream */
    --burgundy-wash: hsl(358, 52%, 96%);    /* tinted panel background */
    --gold: hsl(45, 95%, 45%);              /* #e0a906  accent fill */
    --gold-deep: hsl(38, 88%, 34%);         /* gold that may carry text */
    --gold-soft: hsl(45, 88%, 91%);         /* highlight wash */
    --gold-line: hsl(45, 70%, 72%);

    /* ---- Neutrals ------------------------------------------------------ */
    --cream: #faf8f3;                       /* page background */
    --surface: #ffffff;                     /* cards, panels */
    --surface-sunk: hsl(40, 30%, 96%);
    --ink: #241a15;                         /* body text */
    --ink-soft: #5c5049;                    /* secondary text (7.3:1 on cream) */
    --line: hsl(35, 18%, 84%);
    --line-strong: hsl(35, 18%, 68%);

    /* ---- Semantic roles ----------------------------------------------- */
    --focus-ring: var(--gold);
    --focus-ring-shadow: 0 0 0 1px var(--burgundy);
    --danger: hsl(0, 62%, 38%);
    --danger-wash: hsl(0, 70%, 96%);
    --success-wash: hsl(150, 40%, 95%);
    --success-line: hsl(150, 35%, 62%);
    --success-ink: hsl(158, 45%, 20%);

    /* ---- Type --------------------------------------------------------- */
    /* Serif for headings (dignified, memorial-appropriate), humanist
       system sans for the dense record data. No webfont download. */
    --font-display: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia,
        "Times New Roman", serif;
    --font-body: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
        Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
        "Liberation Mono", monospace;

    /* Fluid scale. Body copy never drops below 16px so it stays legible on a
       phone and iOS never zooms a focused input. */
    --fs-xs: 0.9375rem;                                     /* 15px  meta */
    --fs-sm: 1rem;                                          /* 16px  small */
    --fs-base: clamp(1.0625rem, 0.55vw + 0.97rem, 1.125rem); /* 17-18px body */
    --fs-lg: clamp(1.125rem, 0.7vw + 1rem, 1.25rem);
    --fs-xl: clamp(1.25rem, 1vw + 1.05rem, 1.5rem);
    --fs-2xl: clamp(1.5rem, 1.6vw + 1.1rem, 1.875rem);
    --fs-3xl: clamp(1.875rem, 3vw + 1.1rem, 2.75rem);

    --lh-tight: 1.2;
    --lh-snug: 1.35;
    --lh-body: 1.65;
    --measure: 68ch;

    /* ---- Spacing (4px base) ------------------------------------------- */
    --sp-1: 0.25rem;
    --sp-2: 0.5rem;
    --sp-3: 0.75rem;
    --sp-4: 1rem;
    --sp-5: 1.5rem;
    --sp-6: 2rem;
    --sp-7: 3rem;
    --sp-8: 4rem;
    --sp-9: 6rem;

    --radius-sm: 4px;
    --radius: 8px;
    --radius-lg: 14px;
    --radius-pill: 999px;

    --shadow-sm: 0 1px 2px hsl(30 20% 20% / 0.08),
        0 1px 3px hsl(30 20% 20% / 0.06);
    --shadow: 0 2px 6px hsl(30 20% 20% / 0.09),
        0 8px 20px -12px hsl(30 20% 20% / 0.22);
    --shadow-lg: 0 4px 12px hsl(30 20% 20% / 0.1),
        0 18px 40px -18px hsl(30 20% 20% / 0.3);

    --container: 1120px;
    --container-narrow: 760px;
    --header-h: 4.5rem;

    /* Minimum comfortable touch target on a phone. */
    --tap: 2.75rem; /* 44px */
}

/* --------------------------------------------------------------------------
   Reset / base
   -------------------------------------------------------------------------- */

*,
*::before,
*::after {
    box-sizing: border-box;
}

* {
    margin: 0;
}

html {
    scroll-behavior: smooth;
    /* Anchor jumps on the landing page must clear the sticky header. */
    scroll-padding-top: calc(var(--header-h) + var(--sp-3));
    -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

body {
    font-family: var(--font-body);
    font-size: var(--fs-base);
    line-height: var(--lh-body);
    color: var(--ink);
    background-color: var(--cream);
    /* A very soft warm wash so the cream page does not read as flat grey. */
    background-image: radial-gradient(
            60rem 30rem at 50% -12rem,
            hsl(45 80% 92% / 0.55),
            transparent 70%
        );
    background-repeat: no-repeat;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: var(--lh-tight);
    color: var(--burgundy);
    letter-spacing: -0.01em;
    text-wrap: balance;
}

h1 {
    font-size: var(--fs-3xl);
}
h2 {
    font-size: var(--fs-2xl);
}
h3 {
    font-size: var(--fs-xl);
}
h4 {
    font-size: var(--fs-lg);
}

p {
    text-wrap: pretty;
}

/* Text links: burgundy, with a gold underline. Gold carries the underline
   (a non-text use), burgundy carries the words. */
a {
    color: var(--burgundy);
    text-decoration-line: underline;
    text-decoration-color: var(--gold-line);
    text-decoration-thickness: 2px;
    text-underline-offset: 0.18em;
    transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

a:hover,
a:focus-visible {
    color: var(--burgundy-deep);
    text-decoration-color: var(--gold-deep);
}

strong,
b {
    font-weight: 650;
}

img,
svg,
picture {
    display: block;
    max-width: 100%;
}

img {
    height: auto;
}

ul,
ol {
    padding-left: 1.15em;
}

code,
kbd,
samp {
    font-family: var(--font-mono);
    font-size: 0.95em;
}

/* --------------------------------------------------------------------------
   Focus — visible on every interactive element, both on cream and burgundy.
   The gold 3px ring is outlined by a 1px burgundy shadow so the indicator
   itself keeps >3:1 contrast against light and dark surfaces alike.
   -------------------------------------------------------------------------- */

:focus-visible {
    outline: 3px solid var(--focus-ring);
    outline-offset: 2px;
    box-shadow: var(--focus-ring-shadow);
    border-radius: var(--radius-sm);
}

/* --------------------------------------------------------------------------
   Layout helpers
   -------------------------------------------------------------------------- */

.container {
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: var(--sp-4);
}

@media (min-width: 640px) {
    .container {
        padding-inline: var(--sp-6);
    }
}

.site-main {
    flex: 1 0 auto;
    display: block;
}

.section {
    padding-block: var(--sp-6);
}

@media (min-width: 860px) {
    .section {
        padding-block: var(--sp-7);
    }
}

.visually-hidden {
    position: absolute !important;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}