/* =========================================================================
   JXM Brand Standards — Base
   ========================================================================= */
:root {
  /* Core palette */
  --abyss:     #221F32;
  --cedar:     #1C2D20;
  --soylent:   #233935;
  --tusk:      #F7F2EB;
  --tusk-2:    #EFEAE1;
  --kermit:    #49E385;
  --gator:     #2EB36A;      /* hover state for Kermit/Compassed buttons */
  --fly:       #BDDEED;
  --compassed: #FF6464;
  --blurple:   #5E4FF5;
  --white:     #FFFFFF;

  /* Dynamic — themed via JS */
  --bg:        var(--tusk);
  --bg-elev:   #FFFFFF;
  --bg-elev-2: rgba(34,31,50,0.04);
  --ink:       var(--abyss);
  --ink-soft:  rgba(34,31,50,0.72);
  --ink-mute:  rgba(34,31,50,0.55);
  --ink-faint: rgba(34,31,50,0.42);
  --line:      rgba(34,31,50,0.10);
  --line-strong: rgba(34,31,50,0.18);
  --accent:    var(--kermit);
  --accent-hover: var(--gator);
  --accent-ink: var(--abyss);

  /* Type families */
  --ff-display:  'Inter', system-ui, sans-serif;
  --ff-body:     'DM Sans', system-ui, sans-serif;
  --ff-mono:     'IBM Plex Mono', ui-monospace, monospace;
  --ff-edit:     'Libre Baskerville', Georgia, serif;

  /* Layout */
  --sidebar-w: 264px;
  --content-max: 1080px;
  --topbar-h: 56px;
}

[data-theme="dark"] {
  --bg:        var(--abyss);
  --bg-elev:   #1A1828;
  --bg-elev-2: rgba(247,242,235,0.04);
  --ink:       var(--tusk);
  --ink-soft:  rgba(247,242,235,0.78);
  --ink-mute:  rgba(247,242,235,0.55);
  --ink-faint: rgba(247,242,235,0.38);
  --line:      rgba(247,242,235,0.10);
  --line-strong: rgba(247,242,235,0.18);
}

/* Type pairing alt: "Serif-led" — Libre Baskerville display + DM Sans body */
[data-pairing="serif"] {
  --ff-display: 'Libre Baskerville', Georgia, serif;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; background: var(--bg); }
body {
  font-family: var(--ff-body);
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--bg);
  font-weight: 400;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; }

::selection { background: var(--accent); color: var(--accent-ink); }

/* =========================================================================
   Per-page background overrides
   ========================================================================= */
/* Color page reads better on white — the Tusk swatch needs contrast.
   Sidebar stays on var(--bg); only the content column flips. */
[data-page="color"]:not([data-theme="dark"]) .content { background: #FFFFFF; }
[data-page="color"]:not([data-theme="dark"]) .tb {
  background: color-mix(in srgb, #FFFFFF 92%, transparent);
}
[data-page="color"]:not([data-theme="dark"]) .foot { background: #FFFFFF; }

/* =========================================================================
   App shell
   ========================================================================= */
.app {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  min-height: 100vh;
  background: var(--bg);
}

@media (max-width: 900px) {
  .app { grid-template-columns: 1fr; }
}

/* sidebar */
.sb {
  border-right: 1px solid var(--line);
  background: var(--bg);
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.sb-head {
  padding: 22px 22px 16px;
  border-bottom: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.sb-mark {
  font-family: var(--ff-display);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: -0.04em;
}
.sb-ver {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.sb-search-trigger {
  margin: 14px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  color: var(--ink-mute);
  cursor: pointer;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-align: left;
  transition: border-color 160ms ease, color 160ms ease;
}
.sb-search-trigger:hover { border-color: var(--accent); color: var(--ink); }
.sb-search-trigger .flex1 { flex: 1; }
.sb-search-trigger .kbd {
  font-size: 10px;
  padding: 2px 5px;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  color: var(--ink-mute);
}

.sb-nav {
  flex: 1;
  overflow-y: auto;
  padding: 6px 0 16px;
}
.sb-nav::-webkit-scrollbar { width: 6px; }
.sb-nav::-webkit-scrollbar-thumb { background: var(--line-strong); border-radius: 3px; }

.sb-group { padding: 14px 22px 4px; }
.sb-group-label {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 8px;
}
.sb-link {
  display: grid;
  grid-template-columns: 22px 1fr auto;
  gap: 8px;
  align-items: baseline;
  padding: 5px 0;
  cursor: pointer;
  color: var(--ink-soft);
  font-family: var(--ff-body);
  font-size: 13.5px;
  border-left: 2px solid transparent;
  margin-left: -22px;
  padding-left: 22px;
  transition: color 140ms ease, background 140ms ease;
}
.sb-link:hover { color: var(--ink); }
.sb-link.active {
  color: var(--ink);
  font-weight: 500;
  background: var(--bg-elev-2);
  border-left-color: var(--accent);
}
.sb-link-n {
  font-family: var(--ff-mono);
  font-size: 10px;
  color: var(--ink-faint);
}
.sb-link.active .sb-link-n { color: var(--accent); }
.sb-tag {
  font-family: var(--ff-mono);
  font-size: 9px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 1px 5px;
  border-radius: 2px;
  background: var(--accent);
  color: var(--accent-ink);
}
.sb-tag.ai { background: var(--ink); color: var(--accent); }
.sb-tag-ai {
  background: transparent;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.sb-tag-ai svg { display: block; }
[data-theme="dark"] .sb-tag-ai svg path { fill: var(--ink); }

.sb-foot {
  border-top: 1px solid var(--line);
  padding: 14px 22px;
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.sb-foot a:hover { color: var(--accent); }

/* topbar */
.tb {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
  height: var(--topbar-h);
  padding: 0 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.tb-crumb {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.tb-crumb b { color: var(--ink); font-weight: 500; }
.tb-crumb-sep { opacity: 0.4; margin: 0 8px; }
.tb-actions { display: flex; align-items: center; gap: 16px; }
.tb-meta {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mute);
  display: flex;
  gap: 14px;
  align-items: center;
}
.tb-status { display: flex; align-items: center; gap: 6px; }
.tb-status::before { content: ""; width: 6px; height: 6px; border-radius: 3px; background: var(--accent); display: inline-block; }
.tb-btn {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  border: none;
  cursor: pointer;
  transition: background 160ms ease;
}
.tb-btn:hover { background: var(--accent-hover); }

/* content area */
.content {
  display: flex;
  flex-direction: column;
  min-width: 0;
}
.page {
  padding: 48px 56px 120px;
  max-width: 1280px;
  width: 100%;
  margin: 0 auto;
}
@media (max-width: 720px) { .page { padding: 32px 22px 80px; } }

/* page header */
.ph-eyebrow {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
}
.ph-eyebrow::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--accent);
}
.ph-title {
  font-family: var(--ff-display);
  font-weight: 300;
  font-size: clamp(2.5rem, 5.5vw, 4.5rem);
  line-height: 0.92;
  letter-spacing: -0.04em;
  margin-bottom: 24px;
}
.ph-lede {
  font-family: var(--ff-body);
  font-weight: 300;
  font-size: clamp(1.125rem, 1.6vw, 1.375rem);
  line-height: 1.45;
  max-width: 62ch;
  color: var(--ink-soft);
  margin-bottom: 56px;
}

/* sub heading */
.sh {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--line-strong);
}
.sh-l {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.sh-title {
  font-family: var(--ff-display);
  font-weight: 500;
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.sh-meta {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* prose */
.prose {
  font-family: var(--ff-body);
  font-size: 16px;
  line-height: 1.62;
  max-width: 62ch;
  color: var(--ink-soft);
}
.prose + .prose { margin-top: 14px; }
.prose strong { color: var(--ink); font-weight: 500; }
.prose em { font-family: var(--ff-edit); font-style: italic; }

/* block stack helper */
.stack { display: flex; flex-direction: column; gap: 64px; }
.stack-sm { display: flex; flex-direction: column; gap: 24px; }

/* note callout */
.callout {
  padding: 16px 20px;
  border-left: 2px solid var(--accent);
  background: color-mix(in srgb, var(--accent) 8%, transparent);
  font-family: var(--ff-body);
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--ink-soft);
  border-radius: 0 4px 4px 0;
  max-width: 64ch;
}
.callout strong { color: var(--ink); font-weight: 500; }
.callout--warn { border-left-color: var(--compassed); background: color-mix(in srgb, var(--compassed) 7%, transparent); }
.callout-eyebrow {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 6px;
  font-weight: 500;
}
.callout--warn .callout-eyebrow { color: var(--compassed); }

/* code block */
.code {
  background: var(--ink);
  color: var(--bg);
  font-family: var(--ff-mono);
  font-size: 12.5px;
  line-height: 1.65;
  padding: 16px 18px;
  border-radius: 4px;
  overflow-x: auto;
  white-space: pre;
  position: relative;
}
[data-theme="dark"] .code { background: #0F0D18; color: var(--tusk); border: 1px solid var(--line-strong); }
.code-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--bg);
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-radius: 4px 4px 0 0;
}
[data-theme="dark"] .code-head { background: #0F0D18; color: var(--tusk); border: 1px solid var(--line-strong); border-bottom: none; }
.code-head + .code { border-radius: 0 0 4px 4px; padding-top: 14px; }
.code-head .copy {
  background: transparent;
  border: 1px solid color-mix(in srgb, var(--bg) 30%, transparent);
  color: var(--bg);
  font-family: var(--ff-mono);
  font-size: 10px;
  padding: 3px 7px;
  border-radius: 2px;
  cursor: pointer;
  letter-spacing: 0.12em;
}
.code-head .copy:hover { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.code-head .lang { color: var(--accent); }

/* =========================================================================
   Command palette
   ========================================================================= */
.cp-backdrop {
  position: fixed;
  inset: 0;
  background: color-mix(in srgb, var(--abyss) 50%, transparent);
  backdrop-filter: blur(6px);
  z-index: 100;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 14vh;
}
.cp {
  width: min(640px, 92vw);
  background: var(--bg-elev);
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 30px 80px -20px rgba(0,0,0,0.4);
  display: flex;
  flex-direction: column;
  max-height: 70vh;
}
.cp-input {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--line);
}
.cp-input input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  font-family: var(--ff-body);
  font-size: 16px;
  color: var(--ink);
}
.cp-input input::placeholder { color: var(--ink-faint); }
.cp-input .kbd {
  font-family: var(--ff-mono);
  font-size: 10px;
  padding: 3px 6px;
  border: 1px solid var(--line-strong);
  border-radius: 3px;
  color: var(--ink-mute);
}
.cp-list { overflow-y: auto; padding: 6px 0; }
.cp-section-label {
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding: 10px 18px 4px;
}
.cp-row {
  display: grid;
  grid-template-columns: 28px 1fr auto;
  gap: 12px;
  padding: 9px 18px;
  cursor: pointer;
  align-items: center;
}
.cp-row.active { background: var(--bg-elev-2); }
.cp-row-icon {
  width: 22px; height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-mute);
}
.cp-row-title { font-family: var(--ff-body); font-size: 14px; color: var(--ink); }
.cp-row-sub   { font-family: var(--ff-body); font-size: 12px; color: var(--ink-mute); }
.cp-row-meta  { font-family: var(--ff-mono); font-size: 10px; color: var(--ink-faint); letter-spacing: 0.14em; text-transform: uppercase; }
.cp-foot {
  border-top: 1px solid var(--line);
  padding: 10px 18px;
  display: flex;
  justify-content: space-between;
  font-family: var(--ff-mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.cp-foot .kbd {
  padding: 2px 5px;
  border: 1px solid var(--line-strong);
  border-radius: 2px;
  margin: 0 2px;
}

/* =========================================================================
   Reusable grid + tile primitives
   ========================================================================= */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 880px) { .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; } }

.card {
  background: var(--bg-elev);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 22px;
}

/* button — JXM canonical (pill) */
.jbtn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 20px;
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: background 160ms ease, transform 80ms ease, color 160ms ease;
}
.jbtn--primary { background: var(--kermit); color: var(--abyss); }
.jbtn--primary:hover { background: var(--gator); }
.jbtn--danger { background: var(--compassed); color: var(--white); }
.jbtn--danger:hover { background: var(--gator); }
.jbtn--ghost { background: transparent; color: var(--ink); border: 1px solid var(--line-strong); }
.jbtn--ghost:hover { border-color: var(--ink); }
.jbtn--dark { background: var(--abyss); color: var(--tusk); }
.jbtn--dark:hover { background: #0F0D18; }
.jbtn--outline {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--ink);
  padding: 9.5px 20px;
}
.jbtn--outline:hover {
  background: color-mix(in srgb, var(--kermit) 15%, transparent);
  border-color: var(--kermit);
  color: var(--ink);
}
/* --display modifier: swap Plex Mono utility label for Inter sentence-case warmth.
   Pair with any color variant. Used on getjxm.com footer "Reach Out" CTA pattern. */
.jbtn--display {
  font-family: var(--ff-display);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.005em;
  text-transform: none;
  padding: 13px 26px;
}
.jbtn--display.jbtn--outline { padding: 11.5px 26px; }
.jbtn:active { transform: translateY(1px); }

/* =========================================================================
   Footer
   ========================================================================= */
.foot {
  border-top: 1px solid var(--line);
  padding: 48px 56px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: end;
}
.foot-mark {
  font-family: var(--ff-display);
  font-weight: 300;
  font-size: clamp(3rem, 6vw, 5rem);
  letter-spacing: -0.04em;
  line-height: 0.9;
}
.foot-meta {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-mute);
  line-height: 2;
  text-align: right;
}
@media (max-width: 720px) {
  .foot { grid-template-columns: 1fr; padding: 32px 22px; }
  .foot-meta { text-align: left; }
}