/* Klavieratelier Nord — kn- · recipe L10 H08 Y23 C24 S11 F15 N05 T12 A14 M13 K17 CB11 */
@import url("https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500&family=Manrope:wght@300;400;500;600;700;800&display=swap");

:root {
  --kn-tea: #c5d4b8;
  --kn-tea-deep: #8fa87a;
  --kn-tea-wash: #e8efe2;
  --kn-charcoal: #2a2e2a;
  --kn-ink: #1c1f1c;
  --kn-mist: #f4f6f1;
  --kn-paper: #fafbf8;
  --kn-line: rgba(42, 46, 42, 0.18);
  --kn-rail: 13.5rem;
  --kn-baseline: 1.625rem;
  --kn-measure: 38rem;
  --kn-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Manrope", sans-serif;
  font-weight: 400;
  font-size: 1.05rem;
  line-height: var(--kn-baseline);
  color: var(--kn-charcoal);
  background: var(--kn-paper);
  background-image:
    linear-gradient(rgba(42, 46, 42, 0.035) 1px, transparent 1px);
  background-size: 100% var(--kn-baseline);
}

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

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.2em;
}

a:hover {
  color: var(--kn-tea-deep);
}

h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 calc(var(--kn-baseline) * 0.75);
  letter-spacing: -0.02em;
}

p {
  margin: 0 0 var(--kn-baseline);
}

.kn-sr {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

/* —— H08 side rail / mobile top bar —— */
.kn-rail {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--kn-rail);
  padding: 2rem 1.25rem;
  background: var(--kn-mist);
  border-right: 1px solid var(--kn-line);
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.kn-rail__brand {
  font-weight: 800;
  font-size: 1.05rem;
  line-height: 1.25;
  text-decoration: none;
  letter-spacing: -0.03em;
}

.kn-rail__brand span {
  display: block;
  font-weight: 400;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-top: 0.35rem;
  color: rgba(42, 46, 42, 0.65);
}

.kn-rail__nav {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.kn-rail__nav a {
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.15rem 0;
  border-left: 2px solid transparent;
  padding-left: 0.65rem;
  margin-left: -0.65rem;
}

.kn-rail__nav a:hover,
.kn-rail__nav a[aria-current="page"] {
  border-left-color: var(--kn-tea-deep);
  color: var(--kn-ink);
}

.kn-rail__meta {
  margin-top: auto;
  font-size: 0.75rem;
  line-height: 1.4;
  color: rgba(42, 46, 42, 0.6);
}

.kn-topbar {
  display: none;
  position: sticky;
  top: 0;
  z-index: 45;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 1.1rem;
  background: rgba(250, 251, 248, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--kn-line);
  transition: padding 0.25s var(--kn-ease), box-shadow 0.25s var(--kn-ease);
}

.kn-topbar.is-condensed {
  padding: 0.55rem 1.1rem;
  box-shadow: 0 6px 18px rgba(28, 31, 28, 0.06);
}

.kn-topbar.is-condensed .kn-topbar__brand {
  font-size: 0.92rem;
}

.kn-topbar__brand {
  font-weight: 800;
  text-decoration: none;
  letter-spacing: -0.02em;
  transition: font-size 0.25s var(--kn-ease);
}

.kn-menu-btn {
  appearance: none;
  border: 1px solid var(--kn-charcoal);
  background: var(--kn-paper);
  color: var(--kn-charcoal);
  font-family: inherit;
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.45rem 0.75rem;
  cursor: pointer;
}

.kn-shell {
  margin-left: var(--kn-rail);
  min-height: 100vh;
}

/* —— Y23 manifesto —— */
.kn-manifesto {
  padding: clamp(3.5rem, 10vh, 6.5rem) clamp(1.25rem, 4vw, 3.5rem) clamp(2.5rem, 6vh, 4rem);
  max-width: 44rem;
}

.kn-manifesto__brand {
  font-weight: 800;
  font-size: clamp(2.4rem, 6vw, 3.75rem);
  letter-spacing: -0.04em;
  line-height: 1.02;
  margin-bottom: 1.15rem;
}

.kn-manifesto__rule {
  width: 4.5rem;
  height: 1px;
  background: var(--kn-charcoal);
  border: 0;
  margin: 0 0 1.5rem;
}

.kn-manifesto__lead {
  font-weight: 300;
  font-size: clamp(1.2rem, 2.4vw, 1.45rem);
  line-height: 1.55;
  max-width: 32rem;
  margin-bottom: 1.75rem;
}

.kn-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  text-decoration: none;
  border-bottom: 2px solid var(--kn-charcoal);
  padding-bottom: 0.2rem;
}

.kn-cta:hover {
  border-color: var(--kn-tea-deep);
}

/* —— Full-bleed photo breaks (L10 / S11) —— */
.kn-bleed {
  width: 100%;
  margin: calc(var(--kn-baseline) * 2) 0;
}

.kn-bleed img {
  width: 100%;
  height: clamp(18rem, 52vh, 32rem);
  object-fit: cover;
}

.kn-bleed figcaption {
  padding: 0.65rem clamp(1.25rem, 4vw, 3.5rem);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(42, 46, 42, 0.55);
}

/* —— C24 deep feature —— */
.kn-deep {
  padding: calc(var(--kn-baseline) * 2) clamp(1.25rem, 4vw, 3.5rem);
  max-width: calc(var(--kn-measure) + 8rem);
}

.kn-deep__label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--kn-baseline);
  color: rgba(42, 46, 42, 0.55);
}

.kn-deep h2 {
  font-size: clamp(1.85rem, 4vw, 2.6rem);
  font-weight: 800;
  max-width: 18ch;
}

.kn-deep p {
  max-width: var(--kn-measure);
  font-weight: 400;
}

.kn-deep p.kn-deep__emphasis {
  font-weight: 600;
  font-size: 1.12rem;
}

/* —— Accordion services (L10) —— */
.kn-acc {
  padding: calc(var(--kn-baseline) * 2) clamp(1.25rem, 4vw, 3.5rem);
  max-width: 46rem;
}

.kn-acc h2 {
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 800;
  margin-bottom: calc(var(--kn-baseline) * 1.25);
}

.kn-acc details {
  border-top: 1px solid var(--kn-line);
  padding: 1rem 0;
  transition: padding 0.28s var(--kn-ease);
}

.kn-acc details[open] {
  padding-bottom: 1.15rem;
}

.kn-acc details:last-child {
  border-bottom: 1px solid var(--kn-line);
}

.kn-acc summary {
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  font-size: 1.05rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.kn-acc summary::-webkit-details-marker {
  display: none;
}

.kn-acc summary::after {
  content: "+";
  font-weight: 300;
  font-size: 1.4rem;
  line-height: 1;
}

.kn-acc details[open] summary::after {
  content: "–";
}

.kn-acc details p {
  margin-top: 0.75rem;
  max-width: 36rem;
  color: rgba(42, 46, 42, 0.85);
}

/* —— Linked areas —— */
.kn-areas {
  padding: calc(var(--kn-baseline) * 2) clamp(1.25rem, 4vw, 3.5rem);
  background: var(--kn-tea-wash);
}

.kn-areas h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  margin-bottom: calc(var(--kn-baseline) * 1.25);
}

.kn-areas__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0;
  max-width: 40rem;
}

.kn-areas__list a {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  padding: 1rem 0;
  border-top: 1px solid var(--kn-line);
  text-decoration: none;
  font-weight: 600;
}

.kn-areas__list li:last-child a {
  border-bottom: 1px solid var(--kn-line);
}

.kn-areas__list a span {
  font-weight: 400;
  font-size: 0.9rem;
  color: rgba(42, 46, 42, 0.6);
}

/* —— K17 visit / contact —— */
.kn-visit {
  padding: calc(var(--kn-baseline) * 2.5) clamp(1.25rem, 4vw, 3.5rem);
}

.kn-visit__addr {
  font-weight: 800;
  font-size: clamp(1.75rem, 4.5vw, 3rem);
  letter-spacing: -0.035em;
  line-height: 1.15;
  margin-bottom: calc(var(--kn-baseline) * 0.75);
}

.kn-visit__meta {
  font-size: 1rem;
  margin-bottom: calc(var(--kn-baseline) * 1.25);
}

.kn-visit__meta a {
  font-weight: 600;
}

.kn-visit details,
.kn-form-wrap {
  max-width: 28rem;
  border-top: 1px solid var(--kn-line);
  padding-top: 1rem;
}

.kn-form-wrap {
  margin-top: 1.5rem;
}

.kn-visit summary,
.kn-form-wrap summary {
  cursor: pointer;
  font-weight: 700;
  list-style: none;
}

.kn-visit summary::-webkit-details-marker,
.kn-form-wrap summary::-webkit-details-marker {
  display: none;
}

.kn-visit--compact {
  padding: 0;
}

.kn-form {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.15rem;
}

.kn-form label {
  display: grid;
  gap: 0.3rem;
  font-size: 0.85rem;
  font-weight: 600;
}

.kn-form input,
.kn-form textarea,
.kn-form select {
  font: inherit;
  font-weight: 400;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--kn-charcoal);
  background: var(--kn-paper);
  color: var(--kn-charcoal);
  width: 100%;
}

.kn-form textarea {
  min-height: 8rem;
  resize: vertical;
}

.kn-form button {
  appearance: none;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.85rem;
  padding: 0.85rem 1.2rem;
  border: none;
  background: var(--kn-charcoal);
  color: var(--kn-tea);
  cursor: pointer;
  justify-self: start;
}

.kn-form button:hover {
  background: var(--kn-ink);
}

.kn-form__ok {
  display: none;
  padding: 1rem;
  background: var(--kn-tea-wash);
  border: 1px solid var(--kn-tea-deep);
  font-weight: 500;
}

.kn-form__ok.is-visible {
  display: block;
}

/* —— Inner pages —— */
.kn-page {
  padding: clamp(2.5rem, 6vh, 4rem) clamp(1.25rem, 4vw, 3.5rem) calc(var(--kn-baseline) * 2);
}

.kn-page__title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  max-width: 16ch;
}

.kn-page__intro {
  font-weight: 300;
  font-size: 1.2rem;
  max-width: 36rem;
  margin-bottom: calc(var(--kn-baseline) * 1.5);
}

.kn-prose {
  max-width: var(--kn-measure);
}

.kn-prose h2 {
  font-size: 1.35rem;
  font-weight: 800;
  margin-top: calc(var(--kn-baseline) * 1.5);
}

.kn-prose ul {
  padding-left: 1.2rem;
}

.kn-schedule {
  max-width: 40rem;
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  margin: calc(var(--kn-baseline) * 1.5) 0;
}

.kn-schedule th,
.kn-schedule td {
  text-align: left;
  padding: 0.75rem 0.85rem 0.75rem 0;
  border-bottom: 1px solid var(--kn-line);
  vertical-align: top;
}

.kn-schedule th {
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.kn-split {
  display: grid;
  gap: 1.5rem;
  margin: calc(var(--kn-baseline) * 1.5) 0;
}

@media (min-width: 800px) {
  .kn-split {
    grid-template-columns: 1.1fr 0.9fr;
    align-items: center;
    gap: 2.5rem;
  }
}

.kn-legal {
  max-width: 40rem;
}

.kn-legal h2 {
  font-size: 1.15rem;
  margin-top: calc(var(--kn-baseline) * 1.35);
}

/* —— F15 stamp footer —— */
.kn-foot {
  padding: calc(var(--kn-baseline) * 2) clamp(1.25rem, 4vw, 3.5rem) calc(var(--kn-baseline) * 2.5);
  border-top: 1px solid var(--kn-line);
}

.kn-foot__stamp {
  display: inline-block;
  font-family: "IBM Plex Mono", ui-monospace, "Cascadia Mono", "Courier New", monospace;
  font-weight: 500;
  font-size: 0.72rem;
  line-height: 1.55;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
  border: 1.5px solid var(--kn-charcoal);
  padding: 1rem 1.15rem;
  margin-bottom: 1.5rem;
  white-space: pre-line;
}

.kn-foot__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem 1.35rem;
  font-size: 0.88rem;
  font-weight: 500;
}

.kn-foot__links a {
  text-decoration: none;
}

.kn-foot__copy {
  margin-top: 1.5rem;
  font-size: 0.75rem;
  color: rgba(42, 46, 42, 0.55);
}

/* —— N05 bottom sheet —— */
.kn-sheet-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(28, 31, 28, 0.35);
  z-index: 60;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s var(--kn-ease);
}

.kn-sheet-backdrop.is-open {
  opacity: 1;
  pointer-events: auto;
}

.kn-sheet {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 70;
  background: var(--kn-paper);
  border-radius: 1rem 1rem 0 0;
  padding: 0.75rem 1.25rem 1.75rem;
  transform: translateY(110%);
  transition: transform 0.32s var(--kn-ease);
  max-height: 75vh;
  overflow: auto;
}

.kn-sheet.is-open {
  transform: translateY(0);
}

.kn-sheet__handle {
  width: 2.5rem;
  height: 4px;
  background: var(--kn-line);
  border-radius: 2px;
  margin: 0.25rem auto 1rem;
}

.kn-sheet nav {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.kn-sheet nav a {
  text-decoration: none;
  font-weight: 700;
  font-size: 1.15rem;
  padding: 0.7rem 0;
  border-bottom: 1px solid var(--kn-line);
}

/* —— CB11 inverse cookie slab —— */
.kn-cookie {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 90;
  background: var(--kn-ink);
  color: var(--kn-tea);
  padding: 1.15rem clamp(1rem, 3vw, 2rem);
  display: none;
  gap: 1rem;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
}

.kn-cookie.is-visible {
  display: flex;
}

.kn-cookie p {
  margin: 0;
  max-width: 38rem;
  font-size: 0.9rem;
  font-weight: 500;
  line-height: 1.45;
  color: var(--kn-tea);
}

.kn-cookie a {
  color: var(--kn-tea);
}

.kn-cookie__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.kn-cookie button {
  appearance: none;
  font: inherit;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 0.65rem 0.9rem;
  cursor: pointer;
  border: 1px solid var(--kn-tea);
  background: transparent;
  color: var(--kn-tea);
}

.kn-cookie button[data-cookie-accept] {
  background: var(--kn-tea);
  color: var(--kn-ink);
  border-color: var(--kn-tea);
}

.kn-cookie__panel {
  display: none;
  width: 100%;
  margin-top: 0.5rem;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(197, 212, 184, 0.35);
  font-size: 0.85rem;
}

.kn-cookie__panel.is-open {
  display: block;
}

.kn-cookie__panel label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

/* —— Mobile —— */
@media (max-width: 900px) {
  .kn-rail {
    display: none;
  }

  .kn-topbar {
    display: flex;
  }

  .kn-shell {
    margin-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}