:root {
  --pk-primary: #14324f;
  --pk-secondary: #5f7d95;
  --pk-accent: #ef6c3a;
  --pk-surface: #f1f4f6;
  --pk-ink: #0e1a26;
  --pk-border: #d0d7de;
  --pk-font-display: 'Archivo Narrow', sans-serif;
  --pk-font-body: 'Epilogue', sans-serif;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  background-color: var(--pk-surface);
  color: var(--pk-ink);
  font-family: var(--pk-font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: var(--pk-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color 0.15s ease, text-decoration-color 0.15s ease;
}

a:hover {
  color: var(--pk-accent);
}

/* Chrome - Left Rail Layout */
.pk-layout-shell {
  display: flex;
  min-height: 100vh;
  width: 100%;
}

.pk-side-rail {
  width: 280px;
  flex-shrink: 0;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  background-color: var(--pk-primary);
  color: #ffffff;
  padding: 2.5rem 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  z-index: 100;
  border-right: 1px solid rgba(255, 255, 255, 0.1);
  overflow-y: auto;
}

.pk-rail-brand {
  margin-bottom: 2.5rem;
}

.pk-rail-brand-link {
  font-family: var(--pk-font-display);
  font-size: 2.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: #ffffff;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.pk-rail-brand-mark {
  display: inline-block;
  width: 12px;
  height: 24px;
  background-color: var(--pk-accent);
}

.pk-rail-tagline {
  font-size: 0.825rem;
  color: var(--pk-secondary);
  margin-top: 0.5rem;
  line-height: 1.35;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

.pk-rail-nav {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: auto;
}

.pk-rail-nav-item {
  font-family: var(--pk-font-display);
  font-size: 1.25rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #dbe4ec;
  text-decoration: none;
  padding: 0.6rem 0.85rem;
  border-left: 3px solid transparent;
  transition: all 0.15s ease;
}

.pk-rail-nav-item:hover,
.pk-rail-nav-item.active {
  color: #ffffff;
  background-color: rgba(255, 255, 255, 0.06);
  border-left-color: var(--pk-accent);
}

.pk-rail-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  font-size: 0.8rem;
  color: #9ab0c2;
  line-height: 1.4;
}

.pk-rail-footer a {
  color: #c4d4e2;
  text-decoration: none;
}

.pk-rail-footer a:hover {
  color: var(--pk-accent);
}

.pk-main-viewport {
  margin-left: 280px;
  flex-grow: 1;
  min-width: 0;
  background-color: #ffffff;
  padding: 4rem 4rem 6rem 4rem;
}

/* Homepage Opening Poster Block */
.pk-hero-banner {
  padding-bottom: 3.5rem;
  margin-bottom: 3.5rem;
  border-bottom: 3px solid var(--pk-primary);
}

.pk-banner-title {
  font-family: var(--pk-font-display);
  font-size: clamp(3rem, 6.5vw, 5.5rem);
  font-weight: 700;
  line-height: 0.92;
  letter-spacing: -0.03em;
  text-transform: uppercase;
  color: var(--pk-primary);
  margin-bottom: 1.5rem;
  max-width: 18ch;
}

.pk-banner-desc {
  font-size: 1.35rem;
  font-weight: 500;
  line-height: 1.4;
  color: var(--pk-ink);
  max-width: 46ch;
  margin-bottom: 2.5rem;
}

.pk-banner-sections {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--pk-border);
}

.pk-banner-sec-item {
  font-family: var(--pk-font-display);
  font-size: 1.1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--pk-primary);
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
}

.pk-banner-sec-num {
  color: var(--pk-accent);
  font-size: 0.9rem;
  font-weight: 700;
}

/* Section Pitch Blocks */
.pk-pitch-group {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 4rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--pk-border);
}

.pk-pitch-item {
  padding: 1.5rem;
  background-color: var(--pk-surface);
  border-left: 4px solid var(--pk-primary);
}

.pk-pitch-name {
  font-family: var(--pk-font-display);
  font-size: 1.35rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--pk-primary);
  margin-bottom: 0.5rem;
}

.pk-pitch-desc {
  font-size: 0.95rem;
  color: var(--pk-ink);
  line-height: 1.45;
}

/* Homepage Intro prose container */
.pk-home-intro {
  margin-bottom: 4rem;
  font-size: 1.1rem;
  line-height: 1.7;
}

.pk-home-intro h2 {
  font-family: var(--pk-font-display);
  font-size: 2.2rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--pk-primary);
  margin: 2rem 0 1rem 0;
  letter-spacing: -0.01em;
}

.pk-home-intro h3 {
  font-family: var(--pk-font-display);
  font-size: 1.5rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--pk-primary);
  margin: 1.5rem 0 0.75rem 0;
}

.pk-home-intro p {
  margin-bottom: 1.25rem;
}

/* Article Presentation - Stacked Panels Definition List */
.pk-section-header {
  margin-bottom: 2rem;
}

.pk-section-title {
  font-family: var(--pk-font-display);
  font-size: 2.5rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  color: var(--pk-primary);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.pk-section-title::after {
  content: "";
  flex-grow: 1;
  height: 2px;
  background-color: var(--pk-primary);
}

.pk-stack-list {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--pk-border);
  background-color: #ffffff;
  margin-bottom: 4rem;
}

.pk-stack-item {
  border-bottom: 1px solid var(--pk-border);
  padding: 1.5rem 1.75rem;
  transition: background-color 0.15s ease;
}

.pk-stack-item:last-child {
  border-bottom: none;
}

.pk-stack-item:hover {
  background-color: #f8fafc;
}

.pk-stack-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1.5rem;
  margin-bottom: 0.5rem;
}

.pk-stack-link {
  font-family: var(--pk-font-display);
  font-size: 1.45rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  color: var(--pk-primary);
  text-decoration: none;
  line-height: 1.25;
}

.pk-stack-link:hover {
  color: var(--pk-accent);
}

.pk-stack-date {
  font-family: var(--pk-font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--pk-secondary);
  white-space: nowrap;
  letter-spacing: 0.03em;
}

.pk-stack-desc {
  font-size: 1rem;
  color: var(--pk-ink);
  line-height: 1.5;
  max-width: 75ch;
}

/* Article Prose & Page Containers */
.pk-article-header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 2px solid var(--pk-primary);
}

.pk-article-meta {
  font-family: var(--pk-font-display);
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--pk-accent);
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 1rem;
}

.pk-article-title {
  font-family: var(--pk-font-display);
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--pk-primary);
  margin-bottom: 1.25rem;
}

.pk-article-lead {
  font-size: 1.25rem;
  font-weight: 500;
  line-height: 1.5;
  color: var(--pk-ink);
  max-width: 65ch;
}

.pk-article-body {
  font-size: 1.075rem;
  line-height: 1.75;
  color: var(--pk-ink);
  max-width: 68ch;
}

.pk-article-body h2 {
  font-family: var(--pk-font-display);
  font-size: 2rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: -0.01em;
  color: var(--pk-primary);
  margin: 2.75rem 0 1.25rem 0;
  padding-bottom: 0.4rem;
  border-bottom: 1px solid var(--pk-border);
}

.pk-article-body h3 {
  font-family: var(--pk-font-display);
  font-size: 1.45rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--pk-primary);
  margin: 2rem 0 0.85rem 0;
}

.pk-article-body p {
  margin-bottom: 1.4rem;
}

.pk-article-body blockquote {
  border-left: 4px solid var(--pk-accent);
  padding: 1rem 1.5rem;
  background-color: var(--pk-surface);
  margin: 2rem 0;
  font-style: italic;
  color: var(--pk-primary);
}

.pk-article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 2.5rem 0;
  font-size: 0.95rem;
}

.pk-article-body th,
.pk-article-body td {
  padding: 0.85rem 1rem;
  border: 1px solid var(--pk-border);
  text-align: left;
}

.pk-article-body th {
  background-color: var(--pk-primary);
  color: #ffffff;
  font-family: var(--pk-font-display);
  font-size: 1rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.pk-article-body tr:nth-child(even) {
  background-color: #f8fafc;
}

/* Mandatory explicit list styling for BOTH containers */
.pk-article-body ul,
.pk-article-body ol,
.pk-home-intro ul,
.pk-home-intro ol {
  padding-left: 1.75rem;
  margin-top: 1rem;
  margin-bottom: 1.5rem;
}

.pk-article-body li,
.pk-home-intro li {
  margin-bottom: 0.5rem;
  line-height: 1.65;
}

.pk-article-footer {
  margin-top: 4rem;
  padding-top: 2rem;
  border-top: 1px solid var(--pk-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.pk-back-link {
  font-family: var(--pk-font-display);
  font-size: 1.1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--pk-primary);
  text-decoration: none;
}

.pk-back-link:hover {
  color: var(--pk-accent);
}

/* Mobile Responsiveness (375px compatible) */
@media (max-width: 899px) {
  .pk-layout-shell {
    flex-direction: column;
  }

  .pk-side-rail {
    width: 100%;
    position: relative;
    top: auto;
    left: auto;
    bottom: auto;
    padding: 1.25rem 1.25rem;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    border-right: none;
    border-bottom: 3px solid var(--pk-accent);
  }

  .pk-rail-brand {
    margin-bottom: 0;
  }

  .pk-rail-brand-link {
    font-size: 1.6rem;
  }

  .pk-rail-tagline {
    display: none;
  }

  .pk-rail-nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.25rem;
    margin-bottom: 0;
  }

  .pk-rail-nav-item {
    font-size: 0.95rem;
    padding: 0.4rem 0.6rem;
    border-left: none;
    border-bottom: 2px solid transparent;
  }

  .pk-rail-nav-item:hover,
  .pk-rail-nav-item.active {
    border-left-color: transparent;
    border-bottom-color: var(--pk-accent);
  }

  .pk-rail-footer {
    display: none;
  }

  .pk-main-viewport {
    margin-left: 0;
    padding: 2rem 1.25rem 4rem 1.25rem;
  }

  .pk-banner-title {
    font-size: 2.6rem;
  }

  .pk-banner-desc {
    font-size: 1.1rem;
  }

  .pk-pitch-group {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .pk-stack-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.35rem;
  }

  .pk-stack-link {
    font-size: 1.2rem;
  }

  .pk-article-title {
    font-size: 2rem;
  }
}