:root {
  --kz-paper: #ffffff;
  --kz-paper-2: #faf6ef;
  --kz-ink: #221b12;
  --kz-muted: #6b5f50;
  --kz-line: #e2d9cb;
  --kz-brass: #b0854a;
  --kz-brass-deep: #7a5a25;
  --kz-wrap: 1220px;
  --kz-col: 700px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--kz-paper);
  color: var(--kz-ink);
  font: 400 17px/1.65 "Helvetica Neue", Helvetica, Arial, sans-serif;
  -webkit-text-size-adjust: 100%;
}

h1, h2, h3 {
  margin: 0 0 18px;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
  line-height: 1.16;
}

h1 { font-size: clamp(2.1rem, 5.4vw, 3.4rem); }

h2 { font-size: clamp(1.5rem, 3.1vw, 2.1rem); }

h3 {
  font-size: 1.14rem;
  line-height: 1.35;
  font-family: inherit;
  font-weight: 600;
}

p { margin: 0 0 18px; }

a {
  color: var(--kz-brass-deep);
  text-decoration: underline;
  text-underline-offset: 3px;
}

a:hover { color: var(--kz-ink); }

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--kz-brass-deep);
  outline-offset: 2px;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

table { border-collapse: collapse; }

b { font-weight: 600; }

.kz-bar { border-bottom: 1px solid var(--kz-line); }

.kz-bar__inner {
  max-width: var(--kz-wrap);
  margin: 0 auto;
  padding: 13px 22px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 24px;
}

.kz-name {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.16rem;
  color: var(--kz-ink);
  text-decoration: none;
  letter-spacing: 0.02em;
}

.kz-name em { font-style: normal; color: var(--kz-brass-deep); }

.kz-menu {
  display: flex;
  flex-wrap: wrap;
  gap: 2px 20px;
  margin-right: auto;
}

.kz-menu a {
  color: var(--kz-muted);
  text-decoration: none;
  font-size: 0.9rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: inline-block;
  padding: 12px 0;
  min-height: 44px;
}

.kz-menu a:hover { color: var(--kz-ink); }

.kz-btn {
  display: inline-block;
  padding: 14px 26px;
  min-height: 44px;
  border: 0;
  border-radius: 0;
  background: var(--kz-brass-deep);
  color: #ffffff;
  font: 600 0.92rem/1.2 inherit;
  letter-spacing: 0.05em;
  text-decoration: none;
  cursor: pointer;
  transition: background 160ms ease;
}

.kz-btn:hover { background: var(--kz-ink); color: #ffffff; }

.kz-btn--sm { padding: 11px 17px; font-size: 0.85rem; }

.kz-btn--lg { padding: 17px 34px; font-size: 1rem; }

.kz-btn--edge {
  background: transparent;
  color: var(--kz-brass-deep);
  box-shadow: inset 0 0 0 1px var(--kz-brass);
}

.kz-btn--edge:hover { background: var(--kz-brass-deep); color: #ffffff; }

.kz-path {
  max-width: var(--kz-wrap);
  margin: 0 auto;
  padding: 18px 22px 0;
  font-size: 0.84rem;
  color: var(--kz-muted);
}

.kz-path a { color: var(--kz-muted); }

.kz-cover { position: relative; border-bottom: 1px solid var(--kz-line); }

.kz-cover__shot {
  width: 100%;
  max-width: none;
  height: 340px;
  object-fit: cover;
  object-position: 50% 46%;
}

.kz-cover__inner {
  max-width: var(--kz-wrap);
  margin: 0 auto;
  padding: 34px 22px 40px;
}

.kz-cover__line {
  max-width: 46ch;
  font-size: 1.1rem;
  color: var(--kz-muted);
}

.kz-cover__who {
  margin: 26px 0 0;
  font-size: 0.84rem;
  color: var(--kz-muted);
  letter-spacing: 0.04em;
}

.kz-cover__cap {
  max-width: var(--kz-wrap);
  margin: 0 auto;
  padding: 12px 22px 0;
  font-size: 0.8rem;
  color: var(--kz-muted);
}

.kz-lead {
  max-width: var(--kz-wrap);
  margin: 0 auto;
  padding: 44px 22px 20px;
}

.kz-lead__text {
  max-width: 52ch;
  font-size: 1.1rem;
  color: var(--kz-muted);
}

.kz-lead__row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.kz-lead__who {
  margin: 26px 0 0;
  padding-left: 14px;
  border-left: 3px solid var(--kz-brass);
  font-size: 0.84rem;
  color: var(--kz-muted);
}

.kz-core {
  max-width: var(--kz-col);
  margin: 0 auto;
  padding: 0 22px;
}

.kz-core h2 { margin-top: 44px; }

.kz-hold {
  max-width: var(--kz-wrap);
  margin: 0 auto;
  padding-left: 22px;
  padding-right: 22px;
}

.kz-sec { padding-top: 40px; padding-bottom: 40px; }

.kz-sec p { max-width: 68ch; }

.kz-sec--rule { border-top: 1px solid var(--kz-line); }

.kz-quiet { color: var(--kz-muted); }

.kz-shot { margin: 30px 0 0; }

.kz-shot__img { width: 100%; }

.kz-shot__cap {
  margin-top: 11px;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--kz-muted);
}

.kz-shot--half { max-width: 560px; }

.kz-gal {
  display: grid;
  gap: 20px;
  margin-top: 28px;
}

.kz-gal figure { margin: 0; }

.kz-gal img { width: 100%; }

.kz-gal figcaption {
  margin-top: 10px;
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--kz-muted);
}

.kz-scroll {
  overflow-x: auto;
  margin-top: 26px;
  border-top: 2px solid var(--kz-ink);
}

.kz-table {
  width: 100%;
  min-width: 600px;
  font-size: 0.93rem;
}

.kz-table caption {
  padding: 14px 0;
  text-align: left;
  font-size: 0.76rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--kz-muted);
}

.kz-table th,
.kz-table td {
  padding: 13px 16px 13px 0;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--kz-line);
}

.kz-table thead th {
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--kz-muted);
  font-weight: 600;
}

.kz-table tbody th { font-weight: 600; }

.kz-table td { color: var(--kz-muted); }

.kz-source {
  margin-top: 12px;
  font-size: 0.81rem;
  font-style: italic;
  color: var(--kz-muted);
}

.kz-mark {
  margin-top: 26px;
  padding: 18px 20px;
  background: var(--kz-paper-2);
  border-left: 3px solid var(--kz-brass);
  color: var(--kz-muted);
}

.kz-mark p:last-child { margin-bottom: 0; }

.kz-list {
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 22px;
}

.kz-list li { border-top: 1px solid var(--kz-line); padding-top: 15px; }

.kz-list p {
  margin-bottom: 0;
  color: var(--kz-muted);
  font-size: 0.95rem;
}

.kz-pairs {
  margin: 26px 0 0;
  display: grid;
  gap: 0;
}

.kz-pairs dt {
  font-weight: 600;
  padding-top: 15px;
  border-top: 1px solid var(--kz-line);
}

.kz-pairs dd {
  margin: 5px 0 15px;
  color: var(--kz-muted);
  font-size: 0.95rem;
}

.kz-split { display: grid; gap: 30px; }

.kz-split__fix { align-self: start; }

.kz-split__fix p { color: var(--kz-muted); }

.kz-stair {
  margin: 30px 0 0;
  padding: 0;
  list-style: none;
  counter-reset: kzstep;
}

.kz-stair li {
  counter-increment: kzstep;
  position: relative;
  padding-left: 62px;
  padding-bottom: 30px;
  border-left: 1px solid var(--kz-line);
  margin-left: 19px;
}

.kz-stair li:last-child { border-left-color: transparent; padding-bottom: 0; }

.kz-stair li::before {
  content: counter(kzstep);
  position: absolute;
  left: -19px;
  top: 0;
  width: 38px;
  height: 38px;
  border: 1px solid var(--kz-brass);
  background: var(--kz-paper);
  color: var(--kz-brass-deep);
  font-size: 0.86rem;
  line-height: 36px;
  text-align: center;
}

.kz-stair h3 { margin-bottom: 7px; }

.kz-stair p { margin-bottom: 0; color: var(--kz-muted); }

.kz-off { display: grid; gap: 34px; }

.kz-off__unit { max-width: 62ch; }

.kz-off__unit p { color: var(--kz-muted); }

.kz-zig {
  display: grid;
  gap: 30px;
  padding-top: 40px;
  padding-bottom: 40px;
}

.kz-zig__aside {
  align-self: start;
  background: var(--kz-paper-2);
  padding: 22px 20px;
}

.kz-zig__aside p {
  color: var(--kz-muted);
  font-size: 0.94rem;
  margin-bottom: 14px;
}

.kz-zig__aside p:last-child { margin-bottom: 0; }

.kz-zig__head {
  margin-bottom: 6px;
  font-size: 0.72rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--kz-brass-deep);
}

.kz-faq { margin-top: 26px; }

.kz-faq__row { border-top: 1px solid var(--kz-line); }

.kz-faq__row summary {
  cursor: pointer;
  padding: 16px 0;
  min-height: 44px;
  font-weight: 600;
  list-style: none;
}

.kz-faq__row summary::-webkit-details-marker { display: none; }

.kz-faq__row summary::after { content: " +"; color: var(--kz-brass-deep); }

.kz-faq__row[open] summary::after { content: " \2212"; }

.kz-faq__row p {
  margin: 0 0 18px;
  color: var(--kz-muted);
  max-width: 66ch;
}

.kz-end { border-top: 2px solid var(--kz-ink); padding: 50px 22px; }

.kz-end__inner { max-width: var(--kz-wrap); margin: 0 auto; }

.kz-end p { max-width: 58ch; color: var(--kz-muted); }

.kz-foot { border-top: 1px solid var(--kz-line); background: var(--kz-paper-2); }

.kz-foot__inner {
  max-width: var(--kz-wrap);
  margin: 0 auto;
  padding: 38px 22px 24px;
  display: grid;
  gap: 26px;
  font-size: 0.91rem;
}

.kz-foot__head {
  margin-bottom: 10px;
  font-size: 0.72rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--kz-muted);
}

.kz-foot p { color: var(--kz-muted); }

.kz-foot__list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.kz-foot__list a {
  display: inline-block;
  padding: 12px 0;
  min-height: 44px;
  color: var(--kz-muted);
}

.kz-foot__list a:hover { color: var(--kz-ink); }

.kz-foot__end {
  max-width: var(--kz-wrap);
  margin: 0 auto;
  padding: 15px 22px 28px;
  border-top: 1px solid var(--kz-line);
  font-size: 0.81rem;
  color: var(--kz-muted);
}

.kz-doc {
  max-width: 760px;
  margin: 0 auto;
  padding: 40px 22px 58px;
}

.kz-doc h2 { margin-top: 36px; font-size: 1.3rem; }

.kz-doc ul { padding-left: 20px; }

.kz-doc li { margin-bottom: 9px; color: var(--kz-muted); }

.kz-doc p { color: var(--kz-muted); }

.kz-doc__meta {
  padding: 13px 17px;
  background: var(--kz-paper-2);
  font-size: 0.86rem;
}

.kz-doc__credits { font-size: 0.89rem; line-height: 1.75; }

.kz-cookie {
  position: fixed;
  left: 14px;
  right: 14px;
  bottom: 14px;
  z-index: 9;
  padding: 18px 20px;
  border: 1px solid var(--kz-ink);
  background: var(--kz-paper);
  font-size: 0.88rem;
}

.kz-cookie p { margin: 0 0 14px; color: var(--kz-muted); }

.kz-cookie__row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.kz-cookie__row .kz-btn { flex: 1 1 auto; text-align: center; }

.kz-code {
  margin: 26px 0 0;
  padding: 20px;
  overflow-x: auto;
  background: var(--kz-paper-2);
  border-left: 3px solid var(--kz-brass);
  color: var(--kz-ink);
  font: 400 0.84rem/1.75 Menlo, Consolas, "SF Mono", monospace;
}

.kz-diagram {
  width: 100%;
  height: auto;
  background: var(--kz-paper-2);
}

@media (min-width: 600px) {
  .kz-pairs { grid-template-columns: 1fr 1fr; column-gap: 34px; }

  .kz-list { grid-template-columns: 1fr 1fr; gap: 26px 34px; }

  .kz-cookie {
  left: auto;
  right: 22px;
  bottom: 22px;
  max-width: 450px;
}

  .kz-cookie__row .kz-btn { flex: 0 0 auto; }
}

@media (min-width: 760px) {
  .kz-cover__shot { height: 460px; }

  .kz-gal { grid-template-columns: repeat(2, 1fr); }

  .kz-gal figure:first-child { grid-column: 1 / -1; }

  .kz-foot__inner { grid-template-columns: 1.3fr 1fr 1fr; }
}

@media (min-width: 1000px) {
  .kz-cover__shot { height: 560px; }

  .kz-cover__inner { padding-top: 44px; padding-bottom: 54px; }

  .kz-lead { padding-top: 66px; }

  .kz-sec { padding-top: 54px; padding-bottom: 54px; }

  .kz-split {
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

  .kz-split__fix { position: sticky; top: 30px; }

  .kz-off { grid-template-columns: repeat(12, 1fr); gap: 40px 26px; }

  .kz-off__unit--a { grid-column: 2 / 9; }

  .kz-off__unit--b { grid-column: 1 / 7; }

  .kz-off__unit--c { grid-column: 5 / 12; }

  .kz-off__unit--d { grid-column: 3 / 10; }

  .kz-zig { grid-template-columns: 1fr 380px; gap: 50px; }

  .kz-zig--flip .kz-zig__text { order: 2; }

  .kz-zig--flip .kz-zig__aside { order: 1; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}