/**
 * Copyright 2026 UCP Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * BCP adaptation: documentation identity based on the BCP site prototype.
 */

:root {
  --bcp-bg: #0e1116;
  --bcp-bg-deep: #0a0c10;
  --bcp-panel: #12151b;
  --bcp-card: #171b22;
  --bcp-border: #23262d;
  --bcp-border-strong: #2c313a;
  --bcp-text: #f4f5f2;
  --bcp-muted: #b0b5be;
  --bcp-subtle: #7d838d;
  --bcp-green: #00c07a;
  --bcp-green-hover: #4fdca4;
  --bcp-yellow: #ffcf33;
  --bcp-blue: #3f8cff;
  --md-primary-fg-color: var(--bcp-bg);
  --md-accent-fg-color: var(--bcp-green);
}

[data-md-color-scheme="slate"] {
  --md-default-bg-color: var(--bcp-bg);
  --md-default-fg-color: var(--bcp-text);
  --md-default-fg-color--light: var(--bcp-muted);
  --md-default-fg-color--lighter: var(--bcp-subtle);
  --md-typeset-color: var(--bcp-text);
  --md-typeset-a-color: var(--bcp-green);
  --md-code-bg-color: var(--bcp-bg-deep);
  --md-code-fg-color: #c8ccd4;
  --md-footer-bg-color: var(--bcp-bg-deep);
  --md-footer-bg-color--dark: var(--bcp-bg-deep);
}

::selection {
  background: var(--bcp-green);
  color: var(--bcp-bg);
}

body {
  background: var(--bcp-bg);
}

/* --- External link icon --- */
.md-typeset a[target="_blank"]:not(.bcp-card)::after {
  content: "";
  display: inline-block;
  width: 1em;
  height: 1em;
  margin-left: 0.2em;
  vertical-align: middle;
  background-color: currentcolor;
  mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M14 3v2h3.59l-9.83 9.83 1.41 1.41 9.83-9.83V10h2V3m-2 16H5V5h7V3H5c-1.11 0-2 .89-2 2v14a2 2 0 0 0 2 2h14a2 2 0 0 0 2-2v-7h-2v7z'/%3E%3C/svg%3E")
    no-repeat center;
}

/* --- Site shell, aligned with the canonical BCP HTML --- */
.md-header {
  position: sticky;
  top: 0;
  z-index: 50;
  height: 68px;
  background: rgb(14 17 22 / 92%);
  border-bottom: 1px solid var(--bcp-border);
  box-shadow: none;
  color: var(--bcp-text);
  backdrop-filter: blur(12px);
}

.md-header__inner {
  display: flex;
  gap: 24px;
  align-items: center;
  width: min(1200px, 100%);
  height: 68px;
  padding: 0 32px;
}

.bcp-brand {
  display: flex;
  flex: 0 0 auto;
  gap: 12px;
  align-items: center;
  color: var(--bcp-text);
}

.bcp-brand:hover {
  color: var(--bcp-text);
}

.bcp-brand__mark {
  width: 34px;
  height: 28px;
}

.bcp-brand__copy {
  display: flex;
  flex-direction: column;
}

.bcp-brand__copy strong {
  font-size: 17px;
  line-height: 1;
  letter-spacing: -0.3px;
}

.bcp-brand__copy small {
  color: var(--bcp-subtle);
  font-family: "IBM Plex Mono", monospace;
  font-size: 8.5px;
  line-height: 1.35;
  letter-spacing: 1.6px;
  white-space: nowrap;
}

.md-tabs {
  min-width: 0;
  height: auto;
  flex: 1 1 auto;
  background: transparent;
  border: 0;
  color: var(--bcp-muted);
  overflow: visible;
}

.md-tabs .md-grid {
  width: auto;
  margin: 0;
}

.md-tabs__list {
  display: flex;
  gap: 4px;
  height: auto;
  margin: 0;
}

.md-tabs__item {
  height: auto;
  padding: 0;
}

.md-tabs__link {
  margin: 0;
  padding: 8px 14px;
  border-radius: 6px;
  color: var(--bcp-muted);
  font-size: 14px;
  font-weight: 500;
  line-height: 1;
  opacity: 1;
}

.md-tabs__item--active .md-tabs__link,
.md-tabs__link:hover {
  background: rgb(0 192 122 / 10%);
  color: var(--bcp-green);
}

.bcp-menu-button {
  display: none;
  margin: 0;
  color: var(--bcp-text);
}

.bcp-header__utilities {
  display: flex;
  flex: 0 0 auto;
  gap: 8px;
  align-items: center;
  margin-left: auto;
}

.bcp-header__utilities .md-header__option {
  margin: 0;
}

.bcp-header__utilities .md-header__button {
  width: 38px;
  height: 38px;
  margin: 0;
  padding: 8px;
  color: var(--bcp-muted);
}

.bcp-header__utilities .md-select__inner {
  right: 0;
  left: auto;
}

.bcp-repo-link {
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 8px 14px;
  border: 1px solid var(--bcp-border-strong);
  border-radius: 8px;
  color: var(--bcp-text);
  font-size: 13px;
  font-weight: 600;
}

.bcp-repo-link:hover {
  border-color: var(--bcp-green);
  color: var(--bcp-green);
}

.bcp-repo-link__code {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
}

.md-sidebar,
.md-sidebar__scrollwrap {
  background: var(--bcp-bg);
}

.md-nav__title,
.md-nav__link {
  color: var(--bcp-muted);
}

.md-nav__link--active,
.md-nav__link:is(:focus, :hover) {
  color: var(--bcp-green);
}

.md-content__inner::before {
  display: none;
}

.md-typeset {
  color: var(--bcp-text);
}

.md-typeset h1,
.md-typeset h2,
.md-typeset h3,
.md-typeset h4,
.md-typeset h5,
.md-typeset h6 {
  color: var(--bcp-text);
  font-weight: 700;
  letter-spacing: -0.035em;
}

.md-typeset h1 {
  font-size: 2.35rem;
}

.md-typeset p,
.md-typeset li {
  color: var(--bcp-muted);
}

.md-typeset a {
  color: var(--bcp-green);
}

.md-typeset a:hover {
  color: var(--bcp-green-hover);
}

.md-typeset code,
.md-typeset pre {
  font-family: "IBM Plex Mono", monospace;
}

.md-typeset pre > code {
  border: 1px solid var(--bcp-border);
  border-radius: 12px;
}

.md-typeset table:not([class]) {
  background: var(--bcp-panel);
  border: 1px solid var(--bcp-border);
  border-radius: 12px;
}

.md-typeset table:not([class]) th {
  background: var(--bcp-card);
  color: var(--bcp-text);
}

.md-typeset table:not([class]) td {
  border-top-color: var(--bcp-border);
  color: var(--bcp-muted);
}

/* --- BCP page components --- */
.md-main__inner:has(.landing-page),
.md-main__inner:has(.bcp-doc-page) {
  margin-top: 0;
  max-width: none;
}

.md-main__inner:has(.landing-page) > .md-sidebar--secondary,
.md-main__inner:has(.bcp-doc-page) > .md-sidebar--secondary {
  display: none;
}

.md-content:has(.landing-page),
.md-content:has(.bcp-doc-page) {
  max-width: none;
}

.md-content:has(.landing-page) > .md-content__inner,
.md-content:has(.bcp-doc-page) > .md-content__inner {
  margin: 0 !important;
  padding: 0;
}

.landing-page,
.bcp-doc-page {
  color: var(--bcp-text);
}

.landing-page {
  overflow-x: clip;
}

.bcp-section,
.bcp-hero {
  width: min(1200px, 100%);
  margin: 0 auto;
}

.bcp-doc-page {
  width: min(900px, 100%);
  margin: 0 auto;
}

.bcp-hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
  padding: 96px 32px 80px;
}

.bcp-hero__content {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.bcp-eyebrow {
  color: var(--bcp-yellow);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.bcp-hero h1 {
  margin: 0;
  font-size: 58px;
  line-height: 1.05;
  letter-spacing: -2px;
}

.bcp-hero p {
  max-width: 680px;
  margin: 0;
  color: var(--bcp-muted);
  font-size: 20px;
  line-height: 1.5;
  text-wrap: pretty;
}

.bcp-hero__mark {
  display: flex;
  justify-content: center;
}

.bcp-hero__mark img {
  display: block;
  width: min(300px, 100%);
  max-width: 100%;
  height: auto;
}

.bcp-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.bcp-actions > p {
  display: contents;
}

.bcp-button,
.md-typeset a.bcp-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 0;
  padding: 14px 26px;
  border: 1px solid var(--bcp-border-strong);
  border-radius: 8px;
  color: var(--bcp-text);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  transition:
    background 0.18s ease,
    border-color 0.18s ease,
    color 0.18s ease;
}

.bcp-button:hover,
.md-typeset a.bcp-button:hover {
  border-color: var(--bcp-green);
  color: var(--bcp-green);
}

.bcp-button--primary,
.md-typeset a.bcp-button--primary {
  background: var(--bcp-green);
  border-color: var(--bcp-green);
  color: var(--bcp-bg);
}

.bcp-button--primary:hover,
.md-typeset a.bcp-button--primary:hover {
  background: var(--bcp-green-hover);
  border-color: var(--bcp-green-hover);
  color: var(--bcp-bg);
}

.bcp-band {
  border-top: 1px solid var(--bcp-border);
  background: var(--bcp-panel);
}

.bcp-section {
  padding: 72px 32px;
}

.bcp-section h2 {
  margin: 0 0 40px;
  font-size: 32px;
  line-height: 1.1;
  letter-spacing: -1px;
}

.bcp-section__lead {
  max-width: 736px;
  margin: -24px 0 20px;
  color: var(--bcp-muted);
  font-size: 16px;
  line-height: 1.6;
  text-wrap: pretty;
}

.bcp-sponsors .bcp-section__lead {
  margin-top: -30px;
  margin-bottom: 36px;
}

.bcp-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.bcp-grid--two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.bcp-card,
.md-typeset .bcp-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 0;
  padding: 28px;
  background: var(--bcp-card);
  border: 1px solid var(--bcp-border);
  border-radius: 12px;
  color: inherit;
}

a.bcp-card:hover {
  border-color: var(--bcp-green);
}

.bcp-card__tag {
  color: var(--bcp-yellow);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
}

.bcp-sponsor-logo,
.md-typeset .bcp-sponsor-logo {
  display: block;
  width: min(280px, 100%);
  height: auto;
  margin: 0;
  align-self: center;
}

.bcp-sponsor-logo--ceia,
.md-typeset .bcp-sponsor-logo--ceia {
  width: min(280px, 100%);
}

.bcp-sponsor-logo--akcit,
.md-typeset .bcp-sponsor-logo--akcit {
  filter: brightness(0) invert(1);
}

.bcp-sponsor-card,
.md-typeset .bcp-sponsor-card {
  gap: 16px;
  padding: 32px;
  border-color: #9aa0aa;
}

.bcp-sponsor-card--akcit,
.md-typeset .bcp-sponsor-card--akcit {
  background: linear-gradient(
    120deg,
    rgb(25 3 43 / 90%),
    rgb(41 0 75 / 80%) 25%,
    rgb(41 0 75 / 90%) 50%,
    rgb(41 0 75 / 80%) 75%,
    rgb(25 3 43 / 90%)
  );
}

.bcp-sponsor-card--ceia,
.md-typeset .bcp-sponsor-card--ceia {
  background: #00202fed;
}

.bcp-sponsor-card .bcp-sponsor-card__description,
.md-typeset .bcp-sponsor-card .bcp-sponsor-card__description {
  color: var(--bcp-subtle);
  font-size: 14px;
  line-height: 1.55;
}

.bcp-sponsor-card--akcit .bcp-sponsor-card__description,
.md-typeset .bcp-sponsor-card--akcit .bcp-sponsor-card__description {
  color: #c3b8d6;
}

.bcp-sponsor-card .bcp-sponsor-card__url,
.md-typeset .bcp-sponsor-card .bcp-sponsor-card__url {
  color: var(--bcp-green);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  line-height: 1.4;
}

.bcp-partners-grid {
  margin-bottom: 48px;
}

.bcp-partners-grid .bcp-sponsor-card,
.md-typeset .bcp-partners-grid .bcp-sponsor-card {
  padding: 36px;
}

.bcp-partners-grid .bcp-sponsor-logo,
.md-typeset .bcp-partners-grid .bcp-sponsor-logo {
  width: min(300px, 100%);
}

.bcp-card h3,
.bcp-card h2,
.bcp-card__title {
  margin: 0;
  color: var(--bcp-text);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.02em;
}

.bcp-card p,
.bcp-card span {
  margin: 0;
  color: var(--bcp-subtle);
  font-size: 14px;
  line-height: 1.55;
  text-wrap: pretty;
}

.bcp-code-panel {
  padding: 24px 28px;
  overflow: auto;
  background: var(--bcp-bg-deep);
  border: 1px solid var(--bcp-border);
  border-radius: 12px;
  color: #c8ccd4;
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  line-height: 1.7;
}

.bcp-code-panel pre {
  margin: 0;
}

.bcp-code-panel .key {
  color: var(--bcp-green);
}

.bcp-code-panel .value {
  color: var(--bcp-yellow);
}

.bcp-code-panel .comment {
  color: var(--bcp-subtle);
}

.bcp-doc-page {
  max-width: 900px;
  padding: 72px 32px;
}

.bcp-doc-page h1 {
  margin: 12px 0 16px;
  font-size: 44px;
  line-height: 1.1;
  letter-spacing: -1.5px;
}

.bcp-doc-page__lead {
  max-width: none;
  margin: 0 0 48px;
  color: var(--bcp-muted);
  font-size: 17px;
  line-height: 1.6;
  text-wrap: pretty;
}

.bcp-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.bcp-list-item {
  padding: 28px 32px;
  background: var(--bcp-panel);
  border: 1px solid var(--bcp-border);
  border-radius: 12px;
}

.bcp-list-item__title {
  display: flex;
  gap: 12px;
  align-items: center;
  margin-bottom: 10px;
}

.bcp-list-item__num,
.bcp-spec-row__slug,
.bcp-status,
.bcp-phase {
  font-family: "IBM Plex Mono", monospace;
}

.bcp-list-item__num,
.bcp-spec-row__slug {
  color: var(--bcp-green);
  font-size: 13px;
}

.bcp-list-item h2,
.bcp-list-item p {
  margin: 0;
}

.bcp-list-item h2 {
  font-size: 22px;
}

.bcp-list-item p {
  color: #9aa0aa;
  font-size: 15px;
  line-height: 1.6;
  text-wrap: pretty;
}

.bcp-spec-list {
  display: flex;
  flex-direction: column;
}

.bcp-spec-row {
  display: grid;
  grid-template-columns: 200px 1fr 110px;
  gap: 24px;
  align-items: center;
  padding: 22px 8px;
  border-bottom: 1px solid var(--bcp-border);
}

.bcp-spec-row strong {
  color: var(--bcp-text);
  font-size: 17px;
}

.bcp-spec-row__slug {
  font-size: 14px;
}

.bcp-status {
  justify-self: end;
  padding: 4px 10px;
  border: 1px solid currentcolor;
  border-radius: 999px;
  color: var(--bcp-green);
  font-size: 11px;
  letter-spacing: 1px;
}

.bcp-status--planned {
  color: var(--bcp-yellow);
}

.bcp-roadmap {
  display: flex;
  flex-direction: column;
}

.bcp-roadmap__item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 24px;
}

.bcp-roadmap__rail {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.bcp-roadmap__dot {
  width: 14px;
  height: 14px;
  margin-top: 4px;
  border-radius: 50%;
  background: var(--bcp-subtle);
}

.bcp-roadmap__dot--green {
  background: var(--bcp-green);
}

.bcp-roadmap__dot--yellow {
  background: var(--bcp-yellow);
}

.bcp-roadmap__line {
  width: 2px;
  flex: 1;
  background: var(--bcp-border);
}

.bcp-roadmap__body {
  padding-bottom: 40px;
}

.bcp-phase {
  color: var(--bcp-subtle);
  font-size: 12px;
  letter-spacing: 1.5px;
}

.bcp-roadmap__body h2,
.bcp-roadmap__body p {
  margin: 8px 0 0;
}

.bcp-roadmap__body h2 {
  font-size: 22px;
}

.bcp-roadmap__body p {
  color: #9aa0aa;
  font-size: 15px;
  line-height: 1.6;
  text-wrap: pretty;
}

.bcp-contact-card {
  align-items: center;
  margin-top: 0;
  padding: 36px;
  border-style: dashed;
  text-align: center;
}

.bcp-contact-card h2 {
  margin: 0;
  font-size: 22px;
  letter-spacing: 0;
}

.bcp-contact-card p {
  max-width: 520px;
  color: #9aa0aa;
  font-size: 15px;
  line-height: 1.6;
}

.bcp-contact-card .bcp-button {
  margin-top: 8px;
  padding: 12px 24px;
  font-size: 14px;
}

.bcp-cta {
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: center;
  padding: 80px 32px;
  text-align: center;
}

.bcp-cta h2 {
  margin: 0;
}

.bcp-cta > p {
  max-width: 560px;
  margin: 0;
  color: var(--bcp-muted);
  font-size: 16px;
  line-height: 1.6;
  text-wrap: pretty;
}

.bcp-cta .bcp-actions {
  margin-top: 8px;
}

.md-footer,
.bcp-site-footer {
  background: var(--bcp-bg-deep);
  border-top: 1px solid var(--bcp-border);
}

.bcp-footer__inner {
  display: flex;
  gap: 24px;
  align-items: center;
  justify-content: space-between;
  width: min(1200px, 100%);
  min-height: 102px;
  padding: 40px 32px;
}

.bcp-footer__brand {
  display: flex;
  gap: 10px;
  align-items: center;
  color: var(--bcp-subtle);
  font-size: 13px;
}

.bcp-footer__mark {
  width: 26px;
  height: 22px;
  flex: 0 0 auto;
}

.bcp-footer__links {
  display: flex;
  gap: 20px;
  font-size: 13px;
}

.bcp-footer__links a {
  color: var(--bcp-subtle);
}

.bcp-footer__links a:hover {
  color: var(--bcp-green);
}

@media screen and (min-width: 76.25em) {
  .md-main__inner:has(.landing-page) > .md-sidebar--primary,
  .md-main__inner:has(.bcp-doc-page) > .md-sidebar--primary {
    display: none;
  }
}

@media screen and (max-width: 76.2344em) {
  .md-header__inner {
    padding-right: 24px;
    padding-left: 24px;
  }

  .bcp-menu-button {
    display: inline-flex;
    order: -1;
  }

  .md-tabs {
    display: none;
  }
}

@media screen and (max-width: 60em) {
  .bcp-hero {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-top: 72px;
  }

  .bcp-hero__mark {
    justify-content: flex-start;
  }

  .bcp-hero__mark img {
    width: min(240px, 100%);
  }

  .bcp-grid--two {
    grid-template-columns: 1fr;
  }

  .bcp-grid:not(.bcp-grid--two) {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .bcp-spec-row {
    grid-template-columns: 1fr;
    gap: 8px;
  }

  .bcp-status {
    justify-self: start;
  }
}

@media screen and (max-width: 44.9844em) {
  .md-header__inner {
    gap: 10px;
    padding: 0 16px;
  }

  .bcp-brand {
    gap: 8px;
  }

  .bcp-brand__copy small {
    display: none;
  }

  .bcp-header__utilities {
    gap: 2px;
  }

  .bcp-repo-link {
    width: 38px;
    height: 38px;
    justify-content: center;
    padding: 0;
  }

  .bcp-repo-link > span:last-child {
    display: none;
  }

  .bcp-section,
  .bcp-hero,
  .bcp-doc-page {
    width: 100%;
  }

  .bcp-actions {
    flex-direction: column;
  }

  .bcp-hero {
    gap: 40px;
    padding: 48px 16px 56px;
  }

  .bcp-hero h1 {
    font-size: clamp(40px, 14vw, 58px);
    overflow-wrap: anywhere;
  }

  .bcp-hero p {
    font-size: 18px;
  }

  .bcp-hero__mark img {
    width: min(190px, 58vw);
  }

  .bcp-section {
    padding: 56px 16px;
  }

  .bcp-doc-page {
    padding: 56px 16px;
  }

  .bcp-section h2,
  .bcp-doc-page h1 {
    font-size: 32px;
  }

  .bcp-grid:not(.bcp-grid--two) {
    grid-template-columns: 1fr;
  }

  .bcp-card,
  .md-typeset .bcp-card,
  .bcp-list-item {
    padding: 22px;
  }

  .bcp-sponsor-logo,
  .md-typeset .bcp-sponsor-logo {
    width: min(240px, 100%);
    height: auto;
  }

  .bcp-footer__inner {
    flex-direction: column;
    align-items: flex-start;
    padding: 32px 16px;
  }

  .bcp-footer__brand {
    align-items: flex-start;
  }

  .bcp-footer__links {
    flex-wrap: wrap;
  }
}