/* ==========================================================================
   M R STORES — shared stylesheet
   Used by every page EXCEPT privacy-policy.html, which is deliberately
   self-contained (it also renders inside the Batchly in-app WebView and must
   not depend on this file or on any network request).

   Design direction: "Steel & Safety" — steel navy as the structural brand
   colour, safety amber rationed to calls-to-action only. Corporate register.
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;500;600;700&family=IBM+Plex+Mono:wght@400;500&display=swap');

/* --------------------------------------------------------------- tokens -- */

:root {
  color-scheme: light dark;

  --navy: #0B3A5B;
  --navy-700: #14507A;
  --navy-900: #062940;

  --ink: #12202B;
  --ink-muted: #4C5C69;
  --ink-faint: #6F8291;

  --amber: #A15005;
  --amber-hover: #8A4405;
  --amber-tint: #FBE3C4;

  --bg: #FFFFFF;
  --bg-alt: #F5F7F9;
  --bg-zebra: #F0F4F7;
  --card: #FFFFFF;

  --border: #D5DEE5;
  --border-strong: #B4C2CD;

  --on-navy: #E6EEF5;
  --on-navy-muted: #A9C6DC;
  --on-amber: #FFFFFF;

  --focus: #14507A;
  --success: #106B3F;
  --danger: #B3261E;

  --radius: 10px;
  --radius-lg: 14px;
  --maxw: 1120px;

  --shadow-sm: 0 1px 2px rgba(11, 31, 44, .06);
  --shadow-md: 0 4px 16px rgba(11, 31, 44, .08);

  --font-sans: 'IBM Plex Sans', system-ui, -apple-system, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, 'Cascadia Mono', Consolas, 'Courier New', monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --navy: #7FBFE6;
    --navy-700: #A3D2F0;
    --navy-900: #0E2E45;

    --ink: #E6ECF1;
    --ink-muted: #A6B5C1;
    --ink-faint: #7E8E9B;

    --amber: #F0B45C;
    --amber-hover: #F7C77E;
    --amber-tint: #3A2708;

    --bg: #0C1319;
    --bg-alt: #111921;
    --bg-zebra: #151E26;
    --card: #141C24;

    --border: #2A353F;
    --border-strong: #3B4750;

    --on-navy: #E6ECF1;
    --on-navy-muted: #A6B5C1;
    --on-amber: #452200;

    --focus: #7FBFE6;
    --success: #6FD69B;
    --danger: #F5A9A5;

    --shadow-sm: none;
    --shadow-md: 0 4px 16px rgba(0, 0, 0, .5);
  }
}

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

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

html {
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  touch-action: manipulation;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; }

a { color: var(--navy); text-underline-offset: .18em; }
a:hover { color: var(--amber); }

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
  border-radius: 4px;
}

h1, h2, h3, h4 {
  margin: 0 0 .5em;
  line-height: 1.2;
  font-weight: 700;
  letter-spacing: -.015em;
  color: var(--ink);
}

h1 { font-size: clamp(1.9rem, 1.35rem + 2.4vw, 3rem); line-height: 1.14; letter-spacing: -.02em; }
h2 { font-size: clamp(1.45rem, 1.2rem + 1.1vw, 2rem); }
h3 { font-size: 1.15rem; font-weight: 600; letter-spacing: -.01em; }

p { margin: 0 0 1rem; }
p:last-child { margin-bottom: 0; }

.lead {
  font-size: clamp(1.05rem, 1rem + .35vw, 1.2rem);
  line-height: 1.6;
  color: var(--ink-muted);
  max-width: 60ch;
}

.prose { max-width: 68ch; }
.prose h2 { margin-top: 2.2em; }
.prose h3 { margin-top: 1.8em; }
.prose ul, .prose ol { padding-left: 1.25rem; margin: 0 0 1rem; }
.prose li { margin-bottom: .4rem; }

.eyebrow {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin: 0 0 .6rem;
}

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  background: var(--navy);
  color: var(--on-navy);
  padding: 12px 20px;
  border-radius: 0 0 var(--radius) 0;
  font-weight: 600;
  text-decoration: none;
}
.skip-link:focus {
  left: 0;
  color: var(--on-navy);
}

/* ------------------------------------------------------------- layout ---- */

.wrap {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(16px, 4vw, 32px);
}

section { padding-block: clamp(48px, 6vw, 88px); }
section.tight { padding-block: clamp(32px, 4vw, 56px); }
.alt { background: var(--bg-alt); }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 20px;
}
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(min(100%, 380px), 1fr)); }

.section-head { max-width: 62ch; margin-bottom: clamp(24px, 3vw, 40px); }

/* ------------------------------------------------------- utility bar ----- */
/* Legal identity is present above the fold on every single page.            */

.utility {
  background: var(--navy-900);
  color: var(--on-navy-muted);
  font-size: .8125rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.utility .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 20px;
}
.utility .org-name {
  color: var(--on-navy);
  font-weight: 600;
  letter-spacing: .06em;
}
.utility a { color: var(--on-navy); text-decoration: none; }
.utility a:hover { color: var(--amber); text-decoration: underline; }
.utility .sep { color: var(--on-navy-muted); opacity: .5; }

/* -------------------------------------------------------------- nav ------ */

.nav {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
@media (min-width: 721px) {
  .nav {
    position: sticky;
    top: 0;
    z-index: 20;
    background: color-mix(in srgb, var(--bg) 92%, transparent);
    backdrop-filter: blur(8px);
  }
}
.nav .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 4px 24px;
  min-height: 64px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: .1em;
  color: var(--ink);
  text-decoration: none;
  padding-block: 10px;
}
.brand:hover { color: var(--ink); }
.brand .mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 7px;
  background: var(--navy);
  color: #FFFFFF;
  font-size: .8125rem;
  letter-spacing: 0;
  flex: none;
}
@media (prefers-color-scheme: dark) {
  .brand .mark { color: var(--navy-900); }
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding-inline: 12px;
  font-size: .9375rem;
  font-weight: 500;
  color: var(--ink-muted);
  text-decoration: none;
  border-radius: 6px;
  transition: color 160ms ease, box-shadow 160ms ease;
}
.nav-links a:hover {
  color: var(--navy);
  box-shadow: inset 0 -2px 0 var(--amber);
}
.nav-links a[aria-current="page"] {
  color: var(--ink);
  font-weight: 600;
  box-shadow: inset 0 -2px 0 var(--amber);
}

/* ------------------------------------------------------------ buttons ---- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 22px;
  border: 0;
  border-radius: var(--radius);
  font-family: inherit;
  font-size: .9375rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background 160ms ease, transform 120ms ease, border-color 160ms ease;
}
.btn:active { transform: translateY(1px); }
.btn svg { flex: none; }

.btn-primary { background: var(--amber); color: var(--on-amber); }
.btn-primary:hover { background: var(--amber-hover); color: var(--on-amber); }

.btn-ghost {
  background: transparent;
  color: var(--on-navy);
  border: 1.5px solid rgba(255, 255, 255, .45);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, .12);
  color: var(--on-navy);
  border-color: rgba(255, 255, 255, .7);
}

.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 1.5px solid var(--border-strong);
}
.btn-outline:hover { background: var(--bg-alt); color: var(--navy); border-color: var(--navy); }

.btn-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }

/* --------------------------------------------------------------- hero ---- */

.hero {
  background: var(--navy);
  background-image: radial-gradient(circle at 12% 0%, var(--navy-700), transparent 60%);
  color: var(--on-navy);
  padding-block: clamp(56px, 8vw, 104px);
  border-bottom: 1px solid var(--border);
}
.hero h1 { color: var(--on-navy); max-width: 20ch; }
.hero .lead { color: var(--on-navy-muted); }
.hero .eyebrow { color: var(--on-navy-muted); }

/* In dark mode a navy block on a near-black page loses its figure/ground,
   so the hero inverts to a bordered card with an amber rule instead. */
@media (prefers-color-scheme: dark) {
  .hero {
    background: var(--card);
    background-image: none;
    border-top: 3px solid var(--amber);
  }
  .hero h1 { color: var(--ink); }
  .hero .lead { color: var(--ink-muted); }
  .hero .eyebrow { color: var(--ink-faint); }
  .btn-ghost { color: var(--ink); border-color: var(--border-strong); }
  .btn-ghost:hover { background: var(--bg-alt); color: var(--ink); border-color: var(--navy); }
}

/* -------------------------------------------------------- facts strip ---- */

.facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 200px), 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.fact { background: var(--bg-alt); padding: 22px 24px; }
.fact dt {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 6px;
}
.fact dd {
  margin: 0;
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.35;
}

/* -------------------------------------------------------------- cards ---- */

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.card h3 { margin-bottom: .4rem; }
.card p { color: var(--ink-muted); font-size: .9375rem; }

.card-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  background: var(--amber-tint);
  color: var(--amber);
  margin-bottom: 16px;
}
@media (prefers-color-scheme: dark) {
  .card-icon { color: var(--amber); }
}
.card-icon svg { width: 21px; height: 21px; }

/* Product card — the one card on the home page that is a link out. */
.product-card {
  border-top: 3px solid var(--amber);
  display: flex;
  flex-direction: column;
  gap: 4px;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}
.product-card:hover {
  border-color: var(--border-strong);
  border-top-color: var(--amber);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.product-card .pkg {
  font-family: var(--font-mono);
  font-size: .8125rem;
  color: var(--ink-faint);
  word-break: break-all;
}
.product-card .btn-row { margin-top: 20px; }

.feature-card h3 { font-size: 1.0625rem; }

/* -------------------------------------------------------------- table ---- */

.table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

table.details {
  width: 100%;
  border-collapse: collapse;
  font-size: .9375rem;
}
table.details th,
table.details td {
  padding: 14px 16px;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--border);
}
table.details tr:last-child th,
table.details tr:last-child td { border-bottom: 0; }
table.details th {
  font-weight: 600;
  color: var(--ink-muted);
  width: 38%;
  white-space: nowrap;
}
table.details td {
  color: var(--ink);
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
}
table.details tbody tr:nth-child(odd) { background: var(--bg-zebra); }
table.details a { color: var(--navy); }

/* Below 560px the registered address must not truncate or force the page to
   scroll sideways, so rows stack and the header becomes a label line. */
@media (max-width: 560px) {
  .table-scroll { overflow-x: visible; }
  table.details th,
  table.details td {
    display: block;
    width: auto;
    white-space: normal;
  }
  table.details th {
    border-bottom: 0;
    padding-bottom: 2px;
    font-size: .75rem;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--ink-faint);
  }
  table.details td { padding-top: 0; }
}

/* -------------------------------------------------------------- notice --- */

.notice {
  border: 1px solid var(--border);
  border-left: 3px solid var(--amber);
  background: var(--bg-alt);
  border-radius: var(--radius);
  padding: 16px 20px;
  font-size: .9375rem;
  color: var(--ink-muted);
}

/* ---------------------------------------------------------------- faq ---- */
/* Native <details>/<summary> disclosure — no JavaScript, keyboard-operable
   and announced correctly by screen readers out of the box.                 */

.faq {
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--card);
}
.faq details { border-bottom: 1px solid var(--border); }
.faq details:last-child { border-bottom: 0; }

.faq summary {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 56px;
  padding: 14px 20px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
  transition: background 160ms ease;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary:hover { background: var(--bg-alt); }
.faq summary::after {
  content: "";
  flex: none;
  margin-left: auto;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--ink-faint);
  border-bottom: 2px solid var(--ink-faint);
  transform: rotate(45deg) translate(-2px, -2px);
  transition: transform 180ms ease;
}
.faq details[open] > summary { background: var(--bg-alt); }
.faq details[open] > summary::after {
  transform: rotate(-135deg) translate(-2px, -2px);
}
.faq .faq-body {
  padding: 0 20px 20px;
  color: var(--ink-muted);
  font-size: .9375rem;
  max-width: 68ch;
}

/* ------------------------------------------------------------ contact ---- */

.contact-band {
  background: var(--navy);
  background-image: radial-gradient(circle at 88% 100%, var(--navy-700), transparent 62%);
  color: var(--on-navy);
}
.contact-band h2 { color: var(--on-navy); }
.contact-band p { color: var(--on-navy-muted); }
.contact-band a { color: var(--on-navy); }
.contact-band a:hover { color: var(--amber); }
.contact-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: 20px;
}
.contact-list dt {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--on-navy-muted);
  margin-bottom: 4px;
}
.contact-list dd {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .9375rem;
  color: var(--on-navy);
}
@media (prefers-color-scheme: dark) {
  .contact-band {
    background: var(--card);
    background-image: none;
    border-block: 1px solid var(--border);
  }
  .contact-band h2 { color: var(--ink); }
  .contact-band p { color: var(--ink-muted); }
  .contact-band a { color: var(--navy); }
  .contact-list dt { color: var(--ink-faint); }
  .contact-list dd { color: var(--ink); }
}

/* ------------------------------------------------------------- footer ---- */

.foot {
  background: var(--navy-900);
  color: var(--on-navy-muted);
  font-size: .9375rem;
  padding-block: clamp(40px, 5vw, 64px) 28px;
  border-top: 1px solid var(--border);
}
.foot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 240px), 1fr));
  gap: 32px;
  margin-bottom: 32px;
}
.foot h4 {
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--on-navy-muted);
  margin-bottom: 12px;
}
.foot .legal-name {
  color: var(--on-navy);
  font-weight: 600;
  letter-spacing: .06em;
  font-size: 1rem;
  margin-bottom: 6px;
}
.foot address {
  font-style: normal;
  color: var(--on-navy-muted);
  line-height: 1.7;
}
.foot a { color: var(--on-navy); text-decoration: none; }
.foot a:hover { color: var(--amber); text-decoration: underline; }
.foot ul { list-style: none; margin: 0; padding: 0; }
.foot li { margin-bottom: 8px; }
.foot li a {
  display: inline-flex;
  align-items: center;
  min-height: 32px;
}
.foot-base {
  border-top: 1px solid rgba(255, 255, 255, .12);
  padding-top: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  font-size: .875rem;
}

/* ---------------------------------------------------------- a11y prefs --- */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}