/* MAR AI LLC — public site
   Single stylesheet. No build step, no imports, no external fonts.
   System font stack only so the page renders instantly and offline. */

:root {
  --ink:        #1a1714;
  --ink-soft:   #4d453d;
  --ink-faint:  #756b60;
  --paper:      #fbf8f4;
  --paper-2:    #ffffff;
  --line:       #e5ded4;
  --accent:     #b4531a;
  --accent-ink: #8a3d11;
  --glow-a:     rgba(255, 189, 92, 0.38);
  --glow-b:     rgba(255, 122, 89, 0.20);
  --todo-bg:    #ffe8a3;
  --todo-ink:   #6b4a00;
  --todo-line:  #c9971a;
  --radius:     14px;
  --maxw:       62rem;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          "Helvetica Neue", Arial, "Noto Sans", sans-serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --ink:        #f2ece4;
    --ink-soft:   #c3b8aa;
    --ink-faint:  #9a8e80;
    --paper:      #14120f;
    --paper-2:    #1d1a16;
    --line:       #322c25;
    --accent:     #ffb066;
    --accent-ink: #ffc389;
    --glow-a:     rgba(255, 176, 102, 0.20);
    --glow-b:     rgba(255, 122, 89, 0.12);
    --todo-bg:    #4a3a10;
    --todo-ink:   #ffdf94;
    --todo-line:  #a8801e;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

/* ---------- skip link ---------- */

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--paper-2);
  color: var(--ink);
  padding: 0.7rem 1rem;
  border: 2px solid var(--accent);
  border-radius: 0 0 var(--radius) 0;
  z-index: 20;
}
.skip:focus { left: 0; }

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

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ---------- header ---------- */

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: relative;
  z-index: 2;
}

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.5rem;
  padding-top: 1.1rem;
  padding-bottom: 1.1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.95rem;
  color: var(--ink);
  text-decoration: none;
  margin-right: auto;
}

.brand:hover { color: var(--accent-ink); }

.brand-dot {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #ffd79a, var(--accent));
  box-shadow: 0 0 0.6rem var(--glow-a);
  flex: none;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
  font-size: 0.95rem;
}

.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  padding: 0.15rem 0;
  border-bottom: 1px solid transparent;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

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

.hero {
  position: relative;
  overflow: hidden;
  padding: 4.5rem 0 3.5rem;
  border-bottom: 1px solid var(--line);
}

.hero::before {
  content: "";
  position: absolute;
  inset: -40% -10% auto -10%;
  height: 130%;
  background:
    radial-gradient(42rem 26rem at 22% 12%, var(--glow-a), transparent 62%),
    radial-gradient(34rem 22rem at 82% 4%, var(--glow-b), transparent 66%);
  pointer-events: none;
}

.hero .wrap { position: relative; }

h1 {
  font-size: clamp(2.4rem, 8vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  margin: 0 0 0.6rem;
  font-weight: 700;
}

h1 .entity {
  font-size: 0.42em;
  letter-spacing: 0.16em;
  vertical-align: 0.42em;
  color: var(--ink-faint);
  font-weight: 600;
}

.tagline {
  font-size: clamp(1.2rem, 3.4vw, 1.55rem);
  font-weight: 600;
  color: var(--accent-ink);
  margin: 0 0 1.1rem;
  letter-spacing: -0.01em;
}

.lede {
  font-size: 1.12rem;
  color: var(--ink-soft);
  max-width: 42rem;
  margin: 0;
}

/* ---------- sections ---------- */

section { padding: 3.25rem 0; }

section + section { border-top: 1px solid var(--line); }

h2 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink-faint);
  font-weight: 700;
  margin: 0 0 1.5rem;
}

h3 {
  font-size: 1.15rem;
  margin: 0 0 0.4rem;
  letter-spacing: -0.01em;
}

p { margin: 0 0 1rem; max-width: 42rem; }
p:last-child { margin-bottom: 0; }

a { color: var(--accent-ink); }
a:hover { color: var(--accent); }

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

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

.cards {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  list-style: none;
  margin: 0;
  padding: 0;
}

.card {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.35rem 1.4rem;
}

.card p { color: var(--ink-soft); font-size: 0.98rem; }

/* ---------- product panel ---------- */

.product {
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
  display: grid;
  gap: 1.25rem;
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}

@media (min-width: 44rem) {
  .product { grid-template-columns: 8rem minmax(0, 1fr); }
}

.product-mark {
  width: 8rem;
  max-width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius);
  background:
    radial-gradient(circle at 42% 34%, #fff2d6 0%, #ffc36b 34%, var(--accent) 78%);
  box-shadow: inset 0 0 2.4rem rgba(120, 45, 0, 0.28);
  display: grid;
  place-items: center;
  color: #3a1a05;
  font-weight: 700;
  letter-spacing: 0.16em;
  font-size: 0.95rem;
}

.product h3 { font-size: 1.35rem; }

.product .kicker {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--ink-faint);
  font-weight: 700;
  margin: 0 0 0.35rem;
}

.links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 1.25rem;
  margin: 1.1rem 0 0;
  padding: 0;
  list-style: none;
  font-size: 0.97rem;
}

/* ---------- company facts ---------- */

.facts {
  margin: 0;
  display: grid;
  gap: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper-2);
}

.facts > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.15rem;
  padding: 0.85rem 1.15rem;
  border-top: 1px solid var(--line);
}

.facts > div:first-child { border-top: 0; }

@media (min-width: 34rem) {
  .facts > div {
    grid-template-columns: 13rem minmax(0, 1fr);
    gap: 1rem;
    align-items: baseline;
  }
}

.facts dt {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-weight: 700;
  color: var(--ink-faint);
}

.facts dd { margin: 0; color: var(--ink); }

/* ---------- unmistakable placeholder ---------- */

.todo {
  display: inline-block;
  background: var(--todo-bg);
  color: var(--todo-ink);
  border: 2px dashed var(--todo-line);
  border-radius: 6px;
  padding: 0.1rem 0.5rem;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
}

/* ---------- prose (privacy / support pages) ---------- */

.prose h2 {
  font-size: 1.2rem;
  text-transform: none;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 2.25rem 0 0.75rem;
}

.prose h2:first-of-type { margin-top: 1.5rem; }

.prose ul { padding-left: 1.2rem; max-width: 42rem; }
.prose li { margin-bottom: 0.55rem; }
.prose li:last-child { margin-bottom: 0; }

.updated {
  font-size: 0.92rem;
  color: var(--ink-faint);
  font-style: italic;
  margin-bottom: 1.5rem;
}

.notice {
  border-left: 3px solid var(--accent);
  background: var(--paper-2);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: 1rem 1.25rem;
  margin: 2rem 0 0;
}

.notice p { font-size: 0.97rem; color: var(--ink-soft); }

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

.site-footer {
  border-top: 1px solid var(--line);
  padding: 2.5rem 0 3.5rem;
  font-size: 0.92rem;
  color: var(--ink-faint);
  background: var(--paper);
}

.site-footer p { max-width: 46rem; margin-bottom: 0.9rem; }
.site-footer p:last-child { margin-bottom: 0; }

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.25rem;
  list-style: none;
  margin: 0 0 1.25rem;
  padding: 0;
}

.footer-nav a { color: var(--ink-soft); text-decoration: none; }
.footer-nav a:hover { color: var(--accent-ink); text-decoration: underline; }

.disclaimer { color: var(--ink-faint); }

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}