:root {
  --color-primary: #0f172a;
  --color-secondary: #64748b;
  --color-accent: #d97706;
  --color-surface: #f8fafc;
  --color-ink: #020617;
  --font-display: 'Space Grotesk', system-ui, sans-serif;
  --font-body: 'Hanken Grotesk', system-ui, sans-serif;
}

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

html, body {
  margin: 0;
  padding: 0;
  background-color: var(--color-surface);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -0.015em;
  -webkit-font-smoothing: antialiased;
}

body.k5-shell {
  display: flex;
  min-height: 100vh;
  position: relative;
}

.k5-viewport {
  flex: 1 1 auto;
  margin-right: 220px;
  padding: 3rem 3rem 4rem 2rem;
  max-width: 960px;
}

.k5-brand-block {
  margin-bottom: 3.5rem;
}

.k5-brand-title {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: var(--color-primary);
  text-decoration: none;
  display: inline-block;
  line-height: 1;
}

.k5-brand-title:hover {
  color: var(--color-accent);
}

.k5-main-stage {
  width: 100%;
}

.k5-title-single {
  font-family: var(--font-display);
  font-size: 2.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-primary);
  margin: 0 0 2rem 0;
  line-height: 1.15;
}

.k5-pitch-matrix {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 3.5rem 0;
  border: 2px solid var(--color-primary);
  background-color: #ffffff;
}

.k5-pitch-th {
  text-align: left;
  padding: 0.85rem 1.25rem;
  background-color: var(--color-primary);
  color: var(--color-surface);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.k5-pitch-tr {
  border-bottom: 1px solid rgba(15, 23, 42, 0.12);
}

.k5-pitch-tr:last-child {
  border-bottom: none;
}

.k5-pitch-td {
  padding: 1rem 1.25rem;
  vertical-align: top;
}

.k5-pitch-name {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-primary);
  width: 28%;
  font-size: 1.05rem;
}

.k5-pitch-desc {
  color: var(--color-ink);
  font-size: 0.95rem;
  line-height: 1.5;
}

.k5-hero-panel {
  margin-bottom: 4rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--color-secondary);
}

.k5-hero-lead {
  font-size: 1.35rem;
  font-weight: 500;
  color: var(--color-primary);
  line-height: 1.45;
  margin: 0 0 1.5rem 0;
  letter-spacing: -0.02em;
}

.k5-hero-prose p {
  margin: 0 0 1rem 0;
  color: var(--color-ink);
  font-size: 1.05rem;
}

.k5-sub-label {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-secondary);
  margin: 0 0 1.5rem 0;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--color-primary);
}

.k5-stream-section,
.k5-list-wrapper {
  margin-top: 2.5rem;
}

.k5-stream {
  list-style: none;
  padding: 0;
  margin: 0;
}

.k5-stream-item {
  margin: 0;
}

.k5-row {
  display: flex;
  align-items: baseline;
  padding: 0.65rem 0;
  text-decoration: none;
  color: var(--color-ink);
  border-bottom: 1px dotted transparent;
}

.k5-row:hover .k5-row-title {
  color: var(--color-accent);
}

.k5-row-title {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--color-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 72%;
  letter-spacing: -0.015em;
}

.k5-row-dots {
  flex-grow: 1;
  margin: 0 0.85rem;
  border-bottom: 2px dotted var(--color-secondary);
  opacity: 0.45;
  align-self: center;
}

.k5-row-stamp {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-secondary);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

.k5-entry-header {
  margin-bottom: 3rem;
  padding-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-primary);
}

.k5-entry-title {
  font-family: var(--font-display);
  font-size: 2.75rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-primary);
  line-height: 1.15;
  margin: 0 0 1rem 0;
}

.k5-entry-meta {
  font-family: var(--font-display);
  font-size: 0.95rem;
  color: var(--color-secondary);
  font-weight: 600;
  margin: 0 0 1rem 0;
}

.k5-entry-lead {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-primary);
  line-height: 1.5;
  margin: 1rem 0 0 0;
}

.k5-entry-body {
  font-size: 1.075rem;
  line-height: 1.7;
  color: var(--color-ink);
}

.k5-entry-body p {
  margin: 0 0 1.5rem 0;
}

.k5-entry-body h2, .k5-entry-body h3, .k5-entry-body h4 {
  font-family: var(--font-display);
  color: var(--color-primary);
  letter-spacing: -0.025em;
  margin: 2.5rem 0 1rem 0;
}

.k5-entry-body h2 {
  font-size: 1.85rem;
}

.k5-entry-body h3 {
  font-size: 1.4rem;
}

.k5-entry-body blockquote {
  margin: 2rem 0;
  padding: 1rem 1.5rem;
  border-left: 4px solid var(--color-accent);
  background-color: rgba(217, 119, 6, 0.06);
  font-style: italic;
}

.k5-list-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 2px solid var(--color-primary);
}

.k5-list-lead {
  font-size: 1.15rem;
  color: var(--color-secondary);
  margin: 0;
}

.k5-side-dock {
  width: 220px;
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-primary);
  color: var(--color-surface);
  padding: 3rem 1.75rem;
  z-index: 200;
  overflow-y: auto;
}

.k5-menu-box {
  width: 100%;
}

.k5-menu-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.k5-menu-item {
  margin: 0;
}

.k5-menu-link {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-surface);
  text-decoration: none;
  letter-spacing: -0.01em;
  display: block;
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.k5-menu-link:hover,
.k5-menu-link.is-active {
  color: var(--color-accent);
  border-bottom-color: var(--color-accent);
}

.k5-colophon {
  margin-top: 5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-secondary);
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--color-secondary);
}

.k5-copy-line {
  margin: 0;
}

@media (max-width: 840px) {
  body.k5-shell {
    flex-direction: column;
  }

  .k5-viewport {
    margin-right: 0;
    padding: 2rem 1.5rem 4rem 1.5rem;
    max-width: 100%;
  }

  .k5-side-dock {
    width: 100%;
    position: relative;
    top: auto;
    right: auto;
    bottom: auto;
    padding: 1.5rem;
  }

  .k5-menu-list {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 1.5rem;
  }

  .k5-row-title {
    max-width: 55%;
  }
}