/*
 * Hringer shared stylesheet — v0.5
 * Served from https://hringer.com/assets/site.css and linked by every Hringer site.
 *
 * Rules:
 *  - Pages carry NO inline <style> blocks. Layout/look lives here.
 *  - System fonts only, no external requests (matches the privacy policy: no third parties).
 *  - Colors come from the --hr-* tokens below. Never hard-code a color in a page.
 *  - A product site may override --hr-product (its accent) on <body>, nothing else.
 */

:root {
  color-scheme: light dark;

  /* Color — light */
  --hr-bg:        #f6f9f8;
  --hr-surface:   #ffffff;
  --hr-text:      #14201f;
  --hr-muted:     #4f5f5d;
  --hr-border:    #d5e0de;
  --hr-accent:    #0a736e;   /* the teal ring */
  --hr-accent-hover: #075a56;
  --hr-on-accent: #ffffff;
  --hr-focus:     #0a736e;
  --hr-code-bg:   #eaf0ef;

  /* Per-product accent hook (defaults to the brand accent) */
  --hr-product: var(--hr-accent);
  --hr-on-product: var(--hr-on-accent);

  /* Type */
  --hr-font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --hr-mono: ui-monospace, "Cascadia Mono", Consolas, Menlo, monospace;

  /* Scale */
  --hr-measure: 42rem;
  --hr-radius: 10px;
  --hr-gap: 1rem;
}

/* Per-product accents. Put data-product="<id>" on <body> (product site) or on a hub card.
   Used for the nav underline, card edge, title rule, card title and primary button. */
[data-product="tiny-slideshow"] { --hr-product: #056ee0; --hr-on-product: #ffffff; }
[data-product="mainline-dcc"]   { --hr-product: #b45309; --hr-on-product: #ffffff; }
[data-product="binaural-composer"] { --hr-product: #2f3590; --hr-on-product: #ffffff; }

@media (prefers-color-scheme: dark) {
  :root {
    --hr-bg:        #0d1514;
    --hr-surface:   #141e1d;
    --hr-text:      #e4eceb;
    --hr-muted:     #9db0ad;
    --hr-border:    #253433;
    --hr-accent:    #4fd1c5;
    --hr-accent-hover: #7fe3da;
    --hr-on-accent: #06201e;
    --hr-focus:     #4fd1c5;
    --hr-code-bg:   #1b2827;
  }

  [data-product="tiny-slideshow"] { --hr-product: #5aa5ff; --hr-on-product: #022852; }
  [data-product="mainline-dcc"]   { --hr-product: #f5a524; --hr-on-product: #1b1200; }
  [data-product="binaural-composer"] { --hr-product: #939cff; --hr-on-product: #0b0e3a; }
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--hr-bg);
  color: var(--hr-text);
  font-family: var(--hr-font);
  font-size: 1.0625rem;
  line-height: 1.65;
}

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

.site-header {
  border-bottom: 1px solid var(--hr-border);
  background: var(--hr-surface);
}
.site-header__inner,
.site-main,
.site-footer__inner {
  max-width: var(--hr-measure);
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--hr-gap);
  min-height: 3.5rem;
  flex-wrap: wrap;
  padding-top: 0.5rem;
  padding-bottom: 0.5rem;
}
.site-main { padding-top: 2.5rem; padding-bottom: 3rem; }

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--hr-text);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
  text-decoration: none;
}
.brand img, .brand svg { width: 1.75rem; height: 1.75rem; display: block; }

.site-nav { display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; font-size: 0.95rem; }
.site-nav a { color: var(--hr-muted); text-decoration: none; padding: 0.25rem 0; }
.site-nav a:hover { color: var(--hr-text); }
.site-nav a[aria-current="page"] { color: var(--hr-text); box-shadow: inset 0 -2px 0 var(--hr-product); }

.site-footer { border-top: 1px solid var(--hr-border); color: var(--hr-muted); font-size: 0.9rem; }
.site-footer__inner { padding-top: 1.5rem; padding-bottom: 2rem; display: flex; flex-wrap: wrap; gap: 0.25rem 1.25rem; }

/* ---------- Typography ---------- */

h1, h2, h3 { line-height: 1.25; margin: 0; }
h1 { font-size: 2rem; letter-spacing: -0.01em; }
h2 { font-size: 1.35rem; margin-top: 2.5rem; margin-bottom: 0.5rem; }
h3 { font-size: 1.1rem; margin-top: 1.75rem; margin-bottom: 0.25rem; }
p, ul, ol { margin: 0.75rem 0; }

.tagline { color: var(--hr-muted); font-size: 1.15rem; margin-top: 0.5rem; }
.updated { color: var(--hr-muted); font-size: 0.9rem; margin-top: 0.5rem; }

a { color: var(--hr-accent); text-underline-offset: 0.18em; }
a:hover { color: var(--hr-accent-hover); }
:focus-visible { outline: 3px solid var(--hr-focus); outline-offset: 2px; border-radius: 3px; }

code {
  font-family: var(--hr-mono);
  font-size: 0.9em;
  background: var(--hr-code-bg);
  padding: 0.1em 0.35em;
  border-radius: 4px;
  overflow-wrap: anywhere;
}

/* ---------- Components ---------- */

/* Hero block at the top of a page: <header class="page-title"> */
.page-title { padding-bottom: 0.5rem; border-bottom: 3px solid var(--hr-product); display: inline-block; padding-right: 1.5rem; }
.page-title h1 { display: inline; }

/* Product list on the hub: <ul class="cards"><li><a class="card">…</a></li></ul> */
.cards { list-style: none; padding: 0; margin: 1.5rem 0; display: grid; gap: var(--hr-gap); }
.card {
  display: block;
  background: var(--hr-surface);
  border: 1px solid var(--hr-border);
  border-left: 4px solid var(--hr-product);
  border-radius: var(--hr-radius);
  padding: 1rem 1.25rem;
  color: var(--hr-text);
  text-decoration: none;
}
.card:hover { border-color: var(--hr-product); }
.card__title { display: block; font-weight: 700; color: var(--hr-product); font-size: 1.1rem; }
.card__desc { display: block; color: var(--hr-muted); margin-top: 0.15rem; }

/* Emphasized block, e.g. the support email address: <p class="callout"> */
.callout {
  background: var(--hr-surface);
  border: 1px solid var(--hr-border);
  border-radius: var(--hr-radius);
  padding: 1rem 1.25rem;
  font-size: 1.15rem;
  overflow-wrap: anywhere;
}
.callout .note { display: block; margin-top: 0.4rem; font-size: 0.875rem; color: var(--hr-muted); }

/* Link styled as a button: <a class="button" href="mailto:…"> */
.button {
  display: inline-block;
  background: var(--hr-product);
  color: var(--hr-on-product);
  font-weight: 600;
  text-decoration: none;
  padding: 0.55rem 1.1rem;
  border-radius: 8px;
}
.button:hover { filter: brightness(0.9); color: var(--hr-on-product); }

/* Screenshots: <figure class="shot"><img src="…" alt="…" width="…" height="…"><figcaption>…</figcaption></figure>
   Wrap several in <div class="shots"> for a stacked gallery. Always give width/height and descriptive alt. */
img { max-width: 100%; height: auto; }
.shots { display: grid; gap: 1.75rem; margin: 1.5rem 0; }
.shot { margin: 1.5rem 0; }
.shots .shot { margin: 0; }
.shot img {
  display: block;
  width: 100%;
  border: 1px solid var(--hr-border);
  border-radius: var(--hr-radius);
  background: var(--hr-surface);
}
.shot figcaption { margin-top: 0.5rem; color: var(--hr-muted); font-size: 0.9rem; }

/* Status pill (added v0.5). Always carries text, so status never relies on color alone.
   <span class="status status--available">Available</span>
   <span class="status status--soon">In development &middot; 2027</span> */
.status {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  line-height: 1;
  padding: 0.3rem 0.6rem;
  border-radius: 999px;
  white-space: nowrap;
}
.status--available { background: var(--hr-accent); color: var(--hr-on-accent); }
.status--soon { border: 1px solid var(--hr-muted); color: var(--hr-muted); }

/* Card parts for an app with several links (added v0.5). Use <div class="card">, not <a>.
   .card__head holds the title and a status pill; .card__actions holds the button and links. */
.card__head { display: flex; flex-wrap: wrap; align-items: center; gap: 0.4rem 0.75rem; }
.card__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem 1.25rem; margin: 0.9rem 0 0; }
.card__actions a:not(.button) { font-size: 0.95rem; }

/* In-development card (added v0.5): quieter dashed outline; the left edge keeps the product accent. */
.card--soon {
  background: transparent;
  border-style: dashed;
  border-left-style: solid;
  border-color: var(--hr-muted);
  border-color: color-mix(in srgb, var(--hr-muted) 60%, transparent);
  border-left-color: var(--hr-product);
}
.card--soon:hover { border-color: var(--hr-product); }

/* Short intro line under a section heading (added v0.5) */
.lead { color: var(--hr-muted); margin-top: 0; }

/* Store badge / link row */
.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin: 1.5rem 0; }

@media (max-width: 30rem) {
  body { font-size: 1rem; }
  h1 { font-size: 1.7rem; }
  .site-main { padding-top: 1.75rem; }
}

@media print {
  .site-header, .site-footer { display: none; }
  body { background: #fff; color: #000; }
}