/* ==========================================================================
   Internet of Cognition — docs theme.

   Styled after the Outshift IoC pages (outshift.cisco.com/internet-of-cognition):
   black ground, thin white display headings with tight tracking, a yellow
   eyebrow for section kickers, and Cisco cyan as the single accent. The
   remaining values were taken from that site's own computed styles.
   ========================================================================== */

:root {
  /* Ground and ink — black, with barely-lifted surfaces above it */
  --ioc-bg:        #000000;
  --ioc-bg-deep:   #000000;
  --ioc-surface:   rgba(255, 255, 255, 0.032);
  --ioc-fg:        #FFFFFF;
  --ioc-fg-dim:    #B5B5B5;
  --ioc-hair:      rgba(255, 255, 255, 0.14);

  /* Accents: Cisco blue, bright cyan, yellow kicker */
  --ioc-cyan:      #049FD9;
  --ioc-cyan-lt:   #22D3EE;
  --ioc-yellow:    #FACC15;
  --ioc-violet:    #A78BFA;

  /* Accent washes, as the Outshift cards use them */
  --ioc-wash-04:   rgba(4, 159, 217, 0.04);
  --ioc-wash-11:   rgba(4, 159, 217, 0.11);
  --ioc-brd-22:    rgba(4, 159, 217, 0.22);
  --ioc-brd-30:    rgba(4, 159, 217, 0.30);

  /* The four IoC subsystem families — same code as the architecture diagram */
  --ioc-l9:        #2A7BE0;
  --ioc-fabric:    #E8A020;
  --ioc-ce:        #A04BC0;
  --ioc-maslab:    #63A33F;
  --ioc-mas:       #4A5263;
}

/* Wider than Material's stock 61rem: several pages are table-heavy. */
.md-grid { max-width: 72rem; }

/* --------------------------------------------------------------------------
   Dark scheme — the primary presentation, matching the Outshift pages.
   -------------------------------------------------------------------------- */
:root,
[data-md-color-scheme="slate"] {
  --md-default-bg-color:            var(--ioc-bg);
  --md-default-bg-color--light:     #0A0A0A;
  --md-default-bg-color--lighter:   #121212;
  --md-default-fg-color:            var(--ioc-fg);
  --md-default-fg-color--light:     #D7DAE2;
  --md-default-fg-color--lighter:   var(--ioc-fg-dim);
  --md-primary-fg-color:            #000000;
  --md-primary-bg-color:            var(--ioc-fg);
  --md-accent-fg-color:             var(--ioc-cyan-lt);
  --md-typeset-a-color:             var(--ioc-cyan-lt);
  --md-code-bg-color:               rgba(255, 255, 255, 0.04);
  --md-code-fg-color:               #E6E9F0;
  --md-footer-bg-color:             var(--ioc-bg-deep);
  --md-footer-bg-color--dark:       var(--ioc-bg-deep);
}

.md-header,
.md-tabs {
  background: var(--ioc-bg-deep);
}

/* --------------------------------------------------------------------------
   Masthead: the site name reads as a wordmark, with an Outshift kicker above.
   -------------------------------------------------------------------------- */
.md-header__title { font-weight: 400; letter-spacing: -0.01em; }

.md-header__topic:first-child .md-ellipsis { position: relative; }

/* The wordmark carries the Outshift branding, so it is sized to read as one
   rather than sitting at Material's default icon height. */
.md-header__button.md-logo {
  padding: 0 0.4rem 0 0.2rem;
}

.md-header__button.md-logo img,
.md-header__button.md-logo svg {
  /* The wordmark is 212x88 and carries the "by CISCO" lockup, so Material's
     1.2rem icon height leaves it unreadable. */
  height: 2rem;
  width: auto;
}

/* A hairline of Cisco cyan under the header, as on the Outshift nav. */
.md-header { border-bottom: 1px solid var(--ioc-brd-30); }
.md-tabs   { border-bottom: 1px solid var(--ioc-hair); }
.md-tabs__link--active { border-bottom: 2px solid var(--ioc-yellow); }

/* --------------------------------------------------------------------------
   Typography: Outshift sets display headings light (350) and tightly tracked.
   -------------------------------------------------------------------------- */
.md-typeset h1 {
  font-weight: 300;
  letter-spacing: -0.022em;
  line-height: 1.12;
  color: var(--md-default-fg-color);
}

.md-typeset h2 {
  font-weight: 300;
  letter-spacing: -0.02em;
  margin-top: 2.2em;
  padding-top: 0.6em;
  border-top: 1px solid var(--ioc-hair);
}

/* A markdown `---` plus the h2 hairline stacked two rules. Keep one. */
.md-typeset hr:has(+ h2) {
  display: none;
}

.md-typeset hr + h2 {
  border-top: 1px solid var(--ioc-hair);
}

.md-typeset h3 { font-weight: 500; letter-spacing: -0.01em; }

.md-typeset h4 {
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.72rem;
  color: var(--ioc-fg-dim);
}

/* Lead paragraph: the sentence straight after an h1. */
.md-typeset h1 + p {
  font-size: 1.06rem;
  line-height: 1.6;
  color: var(--md-default-fg-color--light);
}

/* Section kicker — write `<p class="eyebrow">TODAY'S PROBLEM</p>` in a page. */
.md-typeset .eyebrow {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ioc-yellow);
  margin-bottom: 0.4em;
}

/* --------------------------------------------------------------------------
   Figures. Every diagram is authored on black (see scripts/restyle-diagrams-dark.py),
   so none of them wants the white plate Material would otherwise imply.
   -------------------------------------------------------------------------- */
.md-typeset img {
  border-radius: 8px;
  background: transparent;
  border: 1px solid var(--ioc-hair);
}

.md-typeset figure { margin: 1.4em 0; }

.md-typeset figcaption {
  font-size: 0.74rem;
  color: var(--ioc-fg-dim);
  text-align: left;
  margin-top: 0.6em;
}

/* --------------------------------------------------------------------------
   Colour key — the four subsystem families, shared with the diagrams.
   -------------------------------------------------------------------------- */
.md-typeset .ioc-key {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5em 1.4em;
  margin: 0.8em 0 1.6em;
  font-size: 0.72rem;
  color: var(--ioc-fg-dim);
  list-style: none;
  padding: 0;
}

.md-typeset .ioc-key li { margin: 0; display: flex; align-items: center; gap: 0.5em; }

.md-typeset .ioc-key li::before {
  content: "";
  width: 0.72em;
  height: 0.72em;
  border-radius: 3px;
  flex: none;
  background: var(--k, var(--ioc-cyan));
}

.md-typeset .ioc-key li.l9     { --k: var(--ioc-l9); }
.md-typeset .ioc-key li.fabric { --k: var(--ioc-fabric); }
.md-typeset .ioc-key li.ce     { --k: var(--ioc-ce); }
.md-typeset .ioc-key li.maslab { --k: var(--ioc-maslab); }
.md-typeset .ioc-key li.mas    { --k: var(--ioc-mas); }

/* --------------------------------------------------------------------------
   Cards, tables, admonitions — the Outshift wash-and-hairline treatment.
   -------------------------------------------------------------------------- */
.md-typeset .grid.cards > ul > li {
  border-radius: 12px;
  border-color: var(--ioc-brd-22);
  background: var(--ioc-wash-04);
  transition: border-color 160ms, background 160ms;
}

.md-typeset .grid.cards > ul > li:hover {
  border-color: var(--ioc-brd-30);
  background: var(--ioc-wash-11);
}

.md-typeset table:not([class]) {
  background: transparent;
  border: 1px solid var(--ioc-hair);
}

.md-typeset table:not([class]) th {
  background: var(--ioc-wash-04);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.66rem;
  color: var(--ioc-fg-dim);
}

.md-typeset .admonition, .md-typeset details {
  border-radius: 10px;
  border-width: 1px;
  box-shadow: none;
}

/* Buttons follow the Outshift 4px-radius pill-less shape. */
.md-typeset .md-button {
  border-radius: 4px;
  border-width: 1px;
  padding: 0.7em 1.2em;
  font-weight: 500;
}

.md-typeset .md-button--primary {
  background: var(--ioc-cyan);
  border-color: var(--ioc-cyan);
  color: #04121A;
}

/* --------------------------------------------------------------------------
   Embedded interactive pages (the consumption-modes explorer).
   -------------------------------------------------------------------------- */
.ioc-embed {
  width: 100%;
  height: 78vh;
  min-height: 560px;
  border: 1px solid var(--ioc-brd-22);
  border-radius: 12px;
  background: var(--ioc-bg);
  display: block;
}

@media screen and (max-width: 76.1875em) {
  .ioc-embed { height: 70vh; }
}

/* --------------------------------------------------------------------------
   Consumption-modes explorer, inline on the How to page. It uses the site's
   own tokens and type rather than carrying a theme of its own.
   -------------------------------------------------------------------------- */
/* The architecture figure is drawn with its own token names; bind them to the
   site palette so it inherits the theme instead of carrying a second one. */
.ioc-explorer {
  --c-blue:     var(--ioc-l9);
  --c-blue-ln:  #3C86E4;
  --c-blue-lt:  #7FB2E8;
  --c-blue-ink: #CFE2FA;
  --c-amb:      var(--ioc-fabric);
  --c-amb-ln:   #F0A020;
  --c-amb-bg:   #2A2012;
  --c-amb-ink:  #F7DCAE;
  --c-pur:      var(--ioc-ce);
  --c-pur-ln:   #B562D0;
  --c-pur-bg:   #241430;
  --c-pur-ink:  #EAD2F5;
  --c-lab:      var(--ioc-maslab);
  --c-agent:    var(--ioc-mas);
  --c-agent3p:  #363D4B;
  --c-band:     #16161F;
  --c-chip-bg:  #0F1018;
  --c-neu-ln:   var(--ioc-hair);
  --fg:         var(--ioc-fg);
  --fg-dim:     var(--ioc-fg-dim);
  --fg-faint:   #6B7488;
  --accent:     var(--ioc-cyan-lt);
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1.4rem;
  margin: 1.2rem 0 0;
}

.ioc-explorer h4 { margin: 0 0 0.7em }

.ioc-group {
  font-size: 0.68rem;
  color: var(--ioc-fg-dim);
  margin: 0 0 0.5em;
  display: flex;
  align-items: center;
  gap: 0.5em;
  line-height: 1.35;
}
.ioc-group::after { content: ""; flex: 1; height: 1px; background: var(--ioc-hair) }
.ioc-group.second { margin-top: 1em; padding-top: 0.9em; border-top: 2px dashed var(--ioc-brd-30) }

/* Material styles every .md-typeset ul, so these need the same specificity to
   shed the bullets and the indent. */
.md-typeset .ioc-modes,
.ioc-modes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.md-typeset .ioc-modes li,
.ioc-modes li { margin: 0; padding: 0 }
.md-typeset .ioc-modes li::before,
.md-typeset .ioc-modes li::marker { content: none; display: none }

.ioc-mode {
  width: 100%;
  max-width: 46rem;
  text-align: left;
  cursor: pointer;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0.3rem 0.35rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font: inherit;
  color: inherit;
  transition: background 140ms, border-color 140ms;
}
.ioc-mode:hover { background: var(--ioc-wash-04) }
.ioc-mode[aria-pressed="true"] { background: var(--ioc-wash-11); border-color: var(--ioc-brd-30) }
.ioc-mode:focus-visible { outline: 2px solid var(--ioc-cyan-lt); outline-offset: 2px }

.ioc-mode .n {
  font-size: 0.62rem;
  font-weight: 700;
  color: var(--ioc-fg-dim);
  width: 0.8rem;
  flex: none;
  text-align: center;
}
.ioc-mode[aria-pressed="true"] .n { color: var(--ioc-yellow) }

.ioc-stack { display: flex; gap: 3px; flex-wrap: nowrap; min-width: 0; flex: 1; overflow: hidden }

.ioc-chip {
  font-size: 0.5rem;
  line-height: 1;
  font-weight: 600;
  color: #10131A;
  border-radius: 3px;
  padding: 0.35rem 0.3rem;
  text-align: center;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: filter 140ms;
}
.ioc-mode[aria-pressed="false"] .ioc-chip { filter: saturate(.45) brightness(.7) }
.ioc-mode:hover .ioc-chip { filter: none }

/* Each chip sizes to its own label, so the staircase comes from how many chips a
   row has — as in the figure — rather than from widths guessed per class. The
   rail is wide enough for the longest row; SCOPE takes any slack. */
.ioc-chip           { flex: 0 0 auto }
.ioc-chip.harness   { background: var(--ioc-mas); color: #fff }
.ioc-chip.mas       { background: #E4E9EE }
.ioc-chip.skills    { background: #7FB2E8 }
.ioc-chip.bridge    { background: var(--ioc-l9); color: #fff }
.ioc-chip.scope       { background: var(--ioc-fabric); flex: 0 0 5rem }
.ioc-chip.detect    { background: var(--ioc-fabric) }
.ioc-chip.trigger   { background: var(--ioc-fabric) }
.ioc-chip.lab       { background: var(--ioc-maslab) }
.ioc-chip.spacer    { background: transparent; flex: 0 0 2.6rem }

/* On a phone a seven-chip row cannot fit on one line, and clipping would hide
   the components the row exists to name — so it wraps instead. The staircase
   offset is dropped there; it only reads when the rows are single lines. */
@media screen and (max-width: 50em) {
  .ioc-stack { flex-wrap: wrap; overflow: visible }
  .ioc-chip.scope { flex: 0 0 auto }
  .ioc-chip.spacer { display: none }
  .ioc-mode { align-items: flex-start }
  .ioc-mode .n { padding-top: 0.35rem }
}

.ioc-canvas {
  border: 1px solid var(--ioc-brd-22);
  border-radius: 12px;
  background: var(--ioc-bg);
  padding: 0.5rem;
  overflow-x: auto;
}
.ioc-canvas svg { display: block; width: 100%; min-width: 34rem; height: auto }

#ioc-arch g[data-group] { transition: opacity 280ms ease }
#ioc-arch g[data-group].off { opacity: .13 }
#ioc-arch g[data-group].ctx { opacity: .22 }
#ioc-arch g[data-group].lit { opacity: 1 }
#ioc-arch g[data-group].pulse rect,
#ioc-arch g[data-group].pulse ellipse,
#ioc-arch g[data-group].pulse path { filter: drop-shadow(0 0 6px var(--ioc-cyan-lt)) }
@media (prefers-reduced-motion: reduce) { #ioc-arch g[data-group] { transition: none } }

.ioc-bar { display: flex; align-items: baseline; justify-content: space-between; gap: 0.6rem; flex-wrap: wrap }

.ioc-toggle {
  font-size: 0.6rem;
  color: var(--ioc-fg-dim);
  cursor: pointer;
  background: transparent;
  border: 1px solid var(--ioc-hair);
  border-radius: 4px;
  padding: 0.2rem 0.5rem;
  transition: color 140ms, border-color 140ms;
}
.ioc-toggle:hover { color: var(--ioc-fg); border-color: var(--ioc-fg-dim) }
.ioc-toggle[aria-pressed="true"] { color: var(--ioc-cyan-lt); border-color: var(--ioc-brd-30) }

.ioc-reading { margin: 0.6rem 0 0; font-size: 0.68rem; color: var(--ioc-fg-dim) }
.ioc-reading b { color: var(--ioc-fg); font-weight: 500 }

.ioc-detail { margin-top: 1.2rem; border-top: 1px solid var(--ioc-hair); padding-top: 1rem }
.ioc-detail h3 { margin: 0 0 0.2em; font-weight: 500 }
.ioc-detail .tag { margin: 0 0 1em; color: var(--ioc-fg-dim); font-size: 0.76rem }

.ioc-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(11rem, 1fr)); gap: 0.7rem }
.ioc-fact {
  background: var(--ioc-wash-04);
  border: 1px solid var(--ioc-brd-22);
  border-radius: 8px;
  padding: 0.6rem 0.75rem;
  min-width: 0;
}
.ioc-fact h5 {
  margin: 0 0 0.35em;
  font-size: 0.56rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--ioc-fg-dim);
}
.ioc-fact p { margin: 0; font-size: 0.72rem; line-height: 1.5 }
.ioc-fact.pro h5 { color: #8FD08A }
.ioc-fact.con h5 { color: #E8956B }
.ioc-fact.gate h5 { color: var(--ioc-yellow) }

/* --------------------------------------------------------------------------
   The architecture figure on the Overview, with its "Available today" toggle.
   The SVG is inlined rather than shown as an <img> so the toggle can reach the
   groups the generator tagged data-planned.
   -------------------------------------------------------------------------- */
.ioc-figure {
  border: 1px solid var(--ioc-brd-22);
  border-radius: 12px;
  background: var(--ioc-bg);
  padding: 0.5rem 0.6rem 0.6rem;
  margin: 1.2rem 0 0.6rem;
  overflow-x: auto;
}

.ioc-figure svg { display: block; width: 100%; height: auto; min-width: 40rem }

.ioc-figbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  padding: 0.1rem 0.1rem 0.5rem;
  font-size: 0.6rem;
  font-weight: 500;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ioc-fg-faint, var(--ioc-fg-dim));
}

#ioc-simplified .planned { transition: opacity 260ms ease, filter 260ms ease }

/* Toggled on: everything not available today drops back. */
.ioc-figure.avail #ioc-simplified .planned { opacity: 0.16; filter: grayscale(1) }

@media (prefers-reduced-motion: reduce) {
  #ioc-simplified .planned { transition: none }
}

/* Mode 1's placement choice: the same skills either in the agents or in the
   AgentBridge. Muted when a mode it does not apply to is selected, so it reads as
   scoped to mode 1 rather than global. */
.ioc-option {
  list-style: none;
  margin: .45rem 0 .2rem;
  padding: .4rem .55rem;
  font-size: .74rem;
  border-left: 2px solid var(--c-amb-ln);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .25rem .9rem;
}
.ioc-option-cap {
  width: 100%;
  font-weight: 600;
  letter-spacing: .02em;
  color: var(--c-amb-ink);
  opacity: .85;
}
.ioc-option label {
  display: inline-flex;
  align-items: center;
  gap: .32rem;
  color: var(--c-amb-ink);
  cursor: pointer;
}
.ioc-option input { accent-color: var(--c-amb-ln); margin: 0; }
.ioc-option.muted { opacity: .4; }
.ioc-option.muted label { cursor: default; }