:root {
  --kp-bg: #f5f7fa;
  --kp-surface: #ffffff;
  --kp-surface-soft: #eef3f7;
  --kp-text: #15263b;
  --kp-muted: #526173;
  --kp-border: #d7e0e8;
  --kp-accent: #0b5d3b;
  --kp-accent-strong: #06452c;
  --kp-link: #0b4f8a;
  --kp-critical-bg: #fff7e8;
  --kp-critical-border: #e6b766;
  --kp-warning-bg: #fff4f2;
  --kp-warning-border: #d99a91;
  --kp-code-bg: #0f1722;
  --kp-code-text: #eef5fb;
  --kp-radius: 18px;
  --kp-shadow: 0 10px 32px rgba(20, 38, 59, 0.08);
  --kp-max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  background: var(--kp-bg);
  color: var(--kp-text);
  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
  line-height: 1.65;
}

body {
  margin: 0;
  background: var(--kp-bg);
}

a {
  color: var(--kp-link);
  text-underline-offset: 0.16em;
}

a:hover {
  text-decoration-thickness: 0.14em;
}

a:focus-visible,
button:focus-visible,
summary:focus-visible,
input:focus-visible,
[tabindex="0"]:focus-visible {
  outline: 3px solid #2b7cc0;
  outline-offset: 3px;
}

.kp-skip-link {
  position: absolute;
  left: 1rem;
  top: -10rem;
  z-index: 1000;
  padding: 0.7rem 1rem;
  background: var(--kp-text);
  color: #fff;
  border-radius: 0.5rem;
}

.kp-skip-link:focus {
  top: 1rem;
}

.kp-shell {
  width: min(calc(100% - 2rem), var(--kp-max));
  margin-inline: auto;
}

.kp-site-header {
  position: relative;
  background: var(--kp-surface);
  border-bottom: 1px solid var(--kp-border);
}

.kp-site-header__inner,
.kp-site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 1rem;
}

.kp-brand {
  color: var(--kp-text);
  font-weight: 800;
  font-size: 1.2rem;
  text-decoration: none;
}

.kp-site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.1rem;
}

.kp-site-nav a {
  color: var(--kp-text);
  font-weight: 650;
  text-decoration: none;
}

.kp-site-nav a[aria-current="page"] {
  color: var(--kp-accent);
  text-decoration: underline;
  text-decoration-thickness: 0.15em;
}

.kp-breadcrumb {
  padding-top: 1.25rem;
  font-size: 0.93rem;
}

.kp-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  gap: 0.45rem;
  margin: 0;
  padding: 0;
}

.kp-breadcrumb li:not(:last-child)::after {
  content: "/";
  margin-left: 0.45rem;
  color: var(--kp-muted);
}

.kp-hero {
  padding: clamp(2.5rem, 6vw, 5.5rem) 0 2.5rem;
}

.kp-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(280px, 0.8fr);
  gap: clamp(1.5rem, 4vw, 3.5rem);
  align-items: start;
}

.kp-eyebrow,
.kp-card__meta,
.kp-source-card__type {
  margin: 0 0 0.55rem;
  color: var(--kp-accent);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
h4 {
  color: var(--kp-text);
  line-height: 1.18;
}

h1 {
  margin: 0;
  max-width: 17ch;
  font-size: clamp(2.35rem, 6vw, 5.2rem);
  letter-spacing: -0.045em;
}

h2 {
  margin-top: 0;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  letter-spacing: -0.025em;
}

h3 {
  font-size: 1.25rem;
}

.kp-lead {
  max-width: 72ch;
  margin: 1.35rem 0 0;
  color: var(--kp-muted);
  font-size: clamp(1.08rem, 2vw, 1.3rem);
}

.kp-goal,
.kp-card,
.kp-section,
.kp-callout,
.kp-transfer,
.kp-question,
.kp-source-card {
  border: 1px solid var(--kp-border);
  border-radius: var(--kp-radius);
  background: var(--kp-surface);
  box-shadow: var(--kp-shadow);
}

.kp-goal {
  padding: 1.5rem;
  border-top: 4px solid var(--kp-accent);
}

.kp-goal h2 {
  font-size: 1.35rem;
}

.kp-content {
  display: grid;
  gap: 1.4rem;
  padding-bottom: 5rem;
}

.kp-section,
.kp-callout,
.kp-transfer {
  padding: clamp(1.4rem, 4vw, 2.4rem);
}

.kp-section__head {
  max-width: 72ch;
}

.kp-section p,
.kp-section li,
.kp-callout li,
.kp-transfer p {
  max-width: 82ch;
}

.kp-grid {
  display: grid;
  gap: 1rem;
}

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

.kp-grid--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.kp-card {
  padding: 1.35rem;
}

.kp-topic-card {
  display: flex;
  flex-direction: column;
}

.kp-topic-card h3 {
  margin-top: 0;
}

.kp-card__footer {
  margin-top: auto;
  color: var(--kp-muted);
  font-size: 0.9rem;
}

.kp-list,
.kp-link-list {
  padding-left: 1.25rem;
}

.kp-list li + li,
.kp-link-list li + li {
  margin-top: 0.45rem;
}

.kp-callout--critical {
  background: var(--kp-critical-bg);
  border-color: var(--kp-critical-border);
}

.kp-callout--warning {
  background: var(--kp-warning-bg);
  border-color: var(--kp-warning-border);
}

.kp-transfer {
  border-left: 5px solid var(--kp-accent);
}

.kp-codebox {
  margin: 1.2rem 0;
  overflow: hidden;
  border-radius: 14px;
  background: var(--kp-code-bg);
}

.kp-codebox__label {
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.16);
  color: #c8d9e8;
  font-size: 0.82rem;
  font-weight: 700;
}

.kp-codebox pre {
  max-width: 100%;
  margin: 0;
  padding: 1rem;
  overflow-x: auto;
  color: var(--kp-code-text);
  font: 0.95rem/1.6 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

.kp-table-wrap {
  max-width: 100%;
  overflow-x: auto;
  margin: 1.2rem 0;
  border: 1px solid var(--kp-border);
  border-radius: 14px;
}

.kp-table-wrap table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  background: var(--kp-surface);
}

.kp-table-wrap th,
.kp-table-wrap td {
  padding: 0.8rem 0.9rem;
  border-bottom: 1px solid var(--kp-border);
  text-align: left;
  vertical-align: top;
}

.kp-table-wrap th {
  background: var(--kp-surface-soft);
}

.kp-self-check {
  display: grid;
  gap: 1rem;
}

.kp-question {
  padding: 1.2rem;
  box-shadow: none;
}

.kp-question fieldset {
  display: grid;
  gap: 0.65rem;
  margin: 1rem 0;
  padding: 0;
  border: 0;
}

.kp-option {
  display: flex;
  gap: 0.7rem;
  align-items: flex-start;
  padding: 0.75rem 0.85rem;
  border: 1px solid var(--kp-border);
  border-radius: 12px;
  cursor: pointer;
}

.kp-option:has(input:focus-visible) {
  outline: 3px solid #2b7cc0;
  outline-offset: 2px;
}

.kp-question details {
  margin-top: 0.8rem;
  padding: 0.8rem 0.9rem;
  border-radius: 10px;
  background: var(--kp-surface-soft);
}

.kp-question summary {
  cursor: pointer;
  font-weight: 750;
}

.kp-meta-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.kp-meta-grid > div {
  padding: 0.9rem;
  border-radius: 12px;
  background: var(--kp-surface-soft);
}

.kp-meta-grid dt {
  color: var(--kp-muted);
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.kp-meta-grid dd {
  margin: 0.3rem 0 0;
}

.kp-source-list {
  display: grid;
  gap: 0.9rem;
}

.kp-source-card {
  padding: 1rem 1.1rem;
  box-shadow: none;
}

.kp-source-card h4 {
  margin: 0;
  font-size: 1.03rem;
}

.kp-source-card p {
  margin-block: 0.45rem;
}

.kp-site-footer {
  border-top: 1px solid var(--kp-border);
  background: var(--kp-surface);
  color: var(--kp-muted);
}

.kp-visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0 0 0 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

@media (max-width: 860px) {
  .kp-hero__grid,
  .kp-grid--2,
  .kp-grid--3,
  .kp-meta-grid {
    grid-template-columns: 1fr;
  }

  .kp-site-header__inner,
  .kp-site-footer__inner {
    align-items: flex-start;
    flex-direction: column;
  }

  h1 {
    max-width: none;
  }
}

@media (max-width: 520px) {
  .kp-shell {
    width: min(calc(100% - 1rem), var(--kp-max));
  }

  .kp-site-nav {
    display: grid;
  }

  .kp-section,
  .kp-callout,
  .kp-transfer,
  .kp-goal {
    border-radius: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
  }
}

/* WP1D REFLOW FIX 2026-09-27
   Prevent intrinsic min-content widths and long heading tokens from widening
   the course-specific knowledge-platform page. */

.kp-content {
  min-width: 0;
  grid-template-columns: minmax(0, 1fr);
}

.kp-content > * {
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}

.kp-hero__grid {
  min-width: 0;
}

.kp-hero__grid > * {
  min-width: 0;
  max-width: 100%;
  box-sizing: border-box;
}

.kp-hero h1 {
  overflow-wrap: anywhere;
}

/* WP1F VISUAL INTEGRATION 2026-09-27
   Course colors are supplied by course.php through CSS variables in the
   shared kernel. The shared platform remains course-neutral. */

.kp-site-header {
  border-bottom: 0;
  background: linear-gradient(90deg, var(--kp-accent), var(--kp-accent-strong));
  color: #fff;
}

.kp-brand {
  color: #fff;
  font-weight: 800;
  text-decoration: none;
}

.kp-site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 2.5rem;
  padding: 0.55rem 0.8rem;
  border: 1px solid rgba(255, 255, 255, 0.52);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
}

.kp-site-nav a:hover,
.kp-site-nav a:focus-visible,
.kp-site-nav a[aria-current="page"] {
  background: #fff;
  color: var(--kp-accent-strong);
}

.kp-hero {
  border-top: 4px solid var(--kp-accent);
}

.kp-hero h1,
.kp-section h2,
.kp-card h3,
.kp-eyebrow {
  color: var(--kp-accent-strong);
}

.kp-card__footer a,
.kp-transfer a {
  font-weight: 700;
}

.kp-site-footer {
  border-top: 0;
  background: var(--kp-accent-strong);
  color: #fff;
}

.kp-site-footer__inner {
  gap: 1rem 2rem;
}

.kp-site-footer p {
  margin: 0;
}

.kp-footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
}

.kp-footer-nav a {
  color: #fff;
  font-weight: 700;
  text-underline-offset: 0.2em;
}

.kp-footer-nav a:hover,
.kp-footer-nav a:focus-visible {
  text-decoration-thickness: 0.16em;
}

@media (max-width: 520px) {
  .kp-site-nav {
    width: 100%;
  }

  .kp-site-nav a {
    width: 100%;
    box-sizing: border-box;
    justify-content: center;
  }

  .kp-footer-nav {
    flex-direction: column;
  }
}