/* ==========================================================================
   Byte Me Dev Studio — design system
   ==========================================================================

   Palette: deep teal on a cool off-white, with a signal amber that only ever
   marks the honesty motif (what breaks, what's unverified, what we won't do).
   The amber is load-bearing, not decoration -- if it appears, it means
   "read this, it's a limitation."

   Type: IBM Plex. Chosen because it was drawn for engineering documentation,
   which is what this company sells: systems whose constraints are written
   down. Sans for interface, Serif for prose, Mono for anything a machine said.
   ========================================================================== */

:root {
  --ground:      #F6F8F8;
  --surface:     #FFFFFF;
  --surface-2:   #EBEFEF;
  --ink:         #0D1315;
  --ink-2:       #38474C;
  --ink-3:       #66787E;
  --rule:        #D9E0E1;

  --teal:        #0B6E68;
  --teal-deep:   #075550;
  --teal-soft:   #D5EBE8;

  --amber:       #8A5A0B;
  --amber-soft:  #F8EBD1;

  --crit:        #96292A;
  --crit-soft:   #F6DDDD;

  --shadow-sm:   0 1px 2px rgba(13,19,21,.06);
  --shadow:      0 1px 2px rgba(13,19,21,.05), 0 10px 30px -14px rgba(13,19,21,.22);

  --max:         1120px;
  --read:        68ch;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --ground:    #0A0F11;
    --surface:   #121A1D;
    --surface-2: #192327;
    --ink:       #ECF2F2;
    --ink-2:     #B0BFC3;
    --ink-3:     #7A8B91;
    --rule:      #222E32;

    --teal:      #4FD0BF;
    --teal-deep: #7FE3D5;
    --teal-soft: #123430;

    --amber:     #E2B063;
    --amber-soft:#33260F;

    --crit:      #E88A8A;
    --crit-soft: #331A1A;

    --shadow-sm: 0 1px 2px rgba(0,0,0,.5);
    --shadow:    0 1px 2px rgba(0,0,0,.4), 0 10px 30px -14px rgba(0,0,0,.8);
  }
}
:root[data-theme="dark"] {
  --ground:#0A0F11; --surface:#121A1D; --surface-2:#192327;
  --ink:#ECF2F2; --ink-2:#B0BFC3; --ink-3:#7A8B91; --rule:#222E32;
  --teal:#4FD0BF; --teal-deep:#7FE3D5; --teal-soft:#123430;
  --amber:#E2B063; --amber-soft:#33260F;
  --crit:#E88A8A; --crit-soft:#331A1A;
  --shadow-sm:0 1px 2px rgba(0,0,0,.5);
  --shadow:0 1px 2px rgba(0,0,0,.4), 0 10px 30px -14px rgba(0,0,0,.8);
}

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

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

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

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: 'IBM Plex Serif__subset', "IBM Plex Serif", Georgia, "Times New Roman", serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, .sans, nav, button, .btn, label, input, th {
  font-family: 'IBM Plex Sans__subset', "IBM Plex Sans", -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}
code, kbd, pre, .mono { font-family: 'IBM Plex Mono__subset', "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace; }

a { color: var(--teal); text-underline-offset: .18em; }
a:hover { color: var(--teal-deep); }
:focus-visible { outline: 2px solid var(--teal); outline-offset: 2px; border-radius: 2px; }

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

.wrap { max-width: var(--max); margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 760px; margin-inline: auto; }
.prose { max-width: var(--read); }
.prose p, .prose ul, .prose ol { margin: 0 0 16px; }
.prose li { margin-bottom: 8px; }

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

.site-head {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--ground) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--rule);
}
.site-head .wrap {
  display: flex; align-items: center; gap: 28px;
  min-height: 62px;
}
.brand {
  font-family: 'IBM Plex Sans__subset', "IBM Plex Sans", sans-serif;
  font-weight: 700; font-size: 16px; letter-spacing: -.015em;
  color: var(--ink); text-decoration: none; white-space: nowrap;
  display: inline-flex; align-items: center; gap: 9px;
}
.brand .mark {
  width: 22px; height: 22px; border-radius: 5px;
  background: var(--teal); color: #fff;
  display: grid; place-items: center;
  font-size: 12px; font-weight: 700; letter-spacing: -.04em;
}
:root[data-theme="dark"] .brand .mark,
:root:not([data-theme="light"]) .brand .mark { color: #08201E; }
@media (prefers-color-scheme: light) { :root:not([data-theme="dark"]) .brand .mark { color: #fff; } }

.site-nav { margin-left: auto; display: flex; gap: 22px; align-items: center; flex-wrap: wrap; }
.site-nav a {
  font-size: 14px; font-weight: 500; color: var(--ink-2); text-decoration: none;
}
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--teal); }

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

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 15px; font-weight: 600; letter-spacing: .005em;
  padding: 12px 22px; border-radius: 4px; border: 1px solid transparent;
  text-decoration: none; cursor: pointer; transition: transform .12s ease, background .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--teal); color: #fff; }
:root[data-theme="dark"] .btn-primary,
:root:not([data-theme="light"]) .btn-primary { color: #062522; }
@media (prefers-color-scheme: light) { :root:not([data-theme="dark"]) .btn-primary { color: #fff; } }
.btn-primary:hover { background: var(--teal-deep); color: inherit; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn-ghost:hover { border-color: var(--teal); color: var(--teal); }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

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

.hero { padding: 88px 0 64px; }
.eyebrow {
  font-family: 'IBM Plex Mono__subset', "IBM Plex Mono", monospace; font-size: 12px;
  letter-spacing: .16em; text-transform: uppercase; color: var(--teal);
  margin: 0 0 20px;
}
h1 {
  font-family: 'IBM Plex Sans__subset', "IBM Plex Sans", sans-serif;
  font-size: clamp(38px, 6vw, 66px); line-height: 1.02;
  letter-spacing: -.032em; font-weight: 600; margin: 0 0 22px;
  text-wrap: balance;
}
.lede {
  font-size: clamp(18px, 2.3vw, 21px); color: var(--ink-2);
  max-width: 60ch; margin: 0 0 30px; line-height: 1.55;
}

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

section { padding: 64px 0; }
section.tight { padding: 40px 0; }
h2 {
  font-size: clamp(26px, 3.6vw, 38px); letter-spacing: -.026em;
  font-weight: 600; margin: 0 0 10px; text-wrap: balance;
}
h3 { font-size: 21px; letter-spacing: -.014em; margin: 30px 0 10px; }
h4 { font-size: 15px; margin: 22px 0 6px; color: var(--ink-2); }
.rule { height: 3px; width: 46px; background: var(--teal); margin: 16px 0 28px; border: 0; }
.section-lede { font-size: 18px; color: var(--ink-2); max-width: 62ch; margin: 0 0 34px; }

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

.cards { display: grid; gap: 20px; }
@media (min-width: 860px) { .cards.three { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 700px) { .cards.two { grid-template-columns: repeat(2, 1fr); } }

.card {
  background: var(--surface); border: 1px solid var(--rule); border-radius: 6px;
  padding: 26px 24px; box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column; gap: 13px;
  transition: box-shadow .18s ease, border-color .18s ease;
}
.card:hover { box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--teal) 40%, var(--rule)); }
.card .kicker {
  font-family: 'IBM Plex Mono__subset', "IBM Plex Mono", monospace; font-size: 11px;
  letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3);
}
.card h3 { margin: 0; font-size: 22px; }
.card p { margin: 0; font-size: 15px; color: var(--ink-2); line-height: 1.55; }
.card .spacer { flex: 1; }
.price {
  font-family: 'IBM Plex Sans__subset', "IBM Plex Sans", sans-serif; font-size: 32px; font-weight: 600;
  color: var(--teal); letter-spacing: -.028em; font-variant-numeric: tabular-nums;
}
.price small { font-size: 14px; font-weight: 400; color: var(--ink-3); letter-spacing: 0; }

/* --- chips --------------------------------------------------------------- */

.chip {
  display: inline-flex; align-items: center; gap: 6px; width: fit-content;
  font-family: 'IBM Plex Sans__subset', "IBM Plex Sans", sans-serif; font-size: 11px; font-weight: 600;
  letter-spacing: .07em; text-transform: uppercase;
  padding: 4px 9px; border-radius: 3px;
}
.chip-live  { background: var(--teal-soft);  color: var(--teal); }
.chip-soon  { background: var(--amber-soft); color: var(--amber); }

/* --- callouts ------------------------------------------------------------ */

.note {
  border-left: 3px solid var(--teal); background: var(--teal-soft);
  padding: 16px 20px; border-radius: 0 4px 4px 0; margin: 0 0 22px;
}
.note.amber { border-left-color: var(--amber); background: var(--amber-soft); }
.note.crit  { border-left-color: var(--crit);  background: var(--crit-soft); }
.note p:last-child { margin-bottom: 0; }
.note .lbl {
  display: block; margin-bottom: 6px;
  font-family: 'IBM Plex Sans__subset', "IBM Plex Sans", sans-serif; font-size: 11px; font-weight: 700;
  letter-spacing: .12em; text-transform: uppercase; color: var(--teal);
}
.note.amber .lbl { color: var(--amber); }
.note.crit  .lbl { color: var(--crit); }

/* --- feature list -------------------------------------------------------- */

.features { list-style: none; padding: 0; margin: 0; display: grid; gap: 18px; }
@media (min-width: 760px) { .features.two-col { grid-template-columns: 1fr 1fr; gap: 18px 34px; } }
.features li { margin: 0; padding-left: 26px; position: relative; }
.features li::before {
  content: ""; position: absolute; left: 0; top: .62em;
  width: 9px; height: 9px; border-radius: 2px; background: var(--teal);
}
.features strong { display: block; font-family: 'IBM Plex Sans__subset', "IBM Plex Sans", sans-serif; font-size: 15.5px; margin-bottom: 2px; }
.features span { font-size: 15px; color: var(--ink-2); }

/* --- tables -------------------------------------------------------------- */

.tw { overflow-x: auto; border: 1px solid var(--rule); border-radius: 5px; background: var(--surface); margin: 0 0 22px; }
table { border-collapse: collapse; width: 100%; font-family: 'IBM Plex Sans__subset', "IBM Plex Sans", sans-serif; font-size: 14.5px; }
th, td { text-align: left; padding: 11px 15px; border-bottom: 1px solid var(--rule); vertical-align: top; }
th {
  font-size: 11px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-3); font-weight: 600; background: var(--surface-2); white-space: nowrap;
}
tbody tr:last-child td { border-bottom: none; }
td.num { font-family: 'IBM Plex Mono__subset', "IBM Plex Mono", monospace; font-variant-numeric: tabular-nums; white-space: nowrap; }

/* --- code ---------------------------------------------------------------- */

pre {
  background: var(--surface); border: 1px solid var(--rule); border-radius: 5px;
  padding: 16px 18px; overflow-x: auto; font-size: 13.5px; line-height: 1.7;
  color: var(--ink-2); margin: 0 0 22px;
}
:not(pre) > code {
  background: var(--surface-2); padding: 1.5px 5px; border-radius: 3px;
  font-size: .9em; color: var(--ink);
}

/* --- legal pages --------------------------------------------------------- */

.legal { padding: 56px 0 80px; }
.legal h1 { font-size: clamp(30px, 4.5vw, 42px); margin-bottom: 8px; }
.legal .meta {
  font-family: 'IBM Plex Mono__subset', "IBM Plex Mono", monospace; font-size: 12.5px;
  color: var(--ink-3); margin: 0 0 30px; letter-spacing: .03em;
}
.legal h2 { font-size: 24px; margin: 40px 0 8px; }
.legal h3 { font-size: 18px; margin: 28px 0 8px; }
.legal-nav {
  display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 36px;
  padding-bottom: 22px; border-bottom: 1px solid var(--rule);
}
.legal-nav a {
  font-family: 'IBM Plex Sans__subset', "IBM Plex Sans", sans-serif; font-size: 13px; font-weight: 500;
  padding: 6px 12px; border: 1px solid var(--rule); border-radius: 3px;
  text-decoration: none; color: var(--ink-2);
}
.legal-nav a:hover { border-color: var(--teal); color: var(--teal); }
.legal-nav a[aria-current="page"] { background: var(--teal-soft); border-color: var(--teal); color: var(--teal); }

.legal .prose { max-width: var(--read); }
.legal .prose a { color: var(--teal); }
.legal .prose code {
  font-family: 'IBM Plex Mono__subset', "IBM Plex Mono", monospace; font-size: .88em;
  background: var(--teal-soft); color: var(--teal); padding: 1px 5px; border-radius: 3px;
}
.legal .prose .note { margin: 24px 0; }
.legal .prose .tw { margin: 20px 0 26px; }
hr.soft { border: 0; height: 1px; background: var(--rule); margin: 38px 0; }

/* An unfilled [PLACEHOLDER] must look broken rather than plausible, so that a
   policy published before the blanks are filled is obvious at a glance. */
mark.ph {
  background: var(--crit-soft); color: var(--crit);
  font-family: 'IBM Plex Mono__subset', "IBM Plex Mono", monospace; font-size: .85em;
  padding: 1px 5px; border-radius: 3px; font-weight: 500;
}

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

.site-foot {
  border-top: 1px solid var(--rule); margin-top: 40px;
  padding: 44px 0 56px; color: var(--ink-3); font-size: 14.5px;
}
.foot-grid { display: grid; gap: 30px; }
@media (min-width: 720px) { .foot-grid { grid-template-columns: 2fr 1fr 1fr; } }
.site-foot h5 {
  font-size: 11px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--ink-3); margin: 0 0 12px; font-weight: 600;
}
.site-foot ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 8px; }
.site-foot a { color: var(--ink-2); text-decoration: none; font-size: 14.5px; }
.site-foot a:hover { color: var(--teal); }
.site-foot .fine { margin-top: 34px; font-size: 13px; color: var(--ink-3); }