/* 글꼴 페이지의 여섯 축 그림, 테마 갤러리, 조합기(font-themes.js).
 * site.css의 토큰(--k-*)과 부품(.k-stage, .k-chips, .k-btn, .k-code)을 쓴다. 축마다 색이 하나씩
 * 있어 축 그림·카드 꼬리표·조합기 묶음이 같은 색으로 이어진다.
 * 견본(<font-kku>)을 품은 자리의 span 규칙은 자식 결합자(>)로만 쓴다 — 자손 선택자는 런타임 안쪽
 * span(자모 노드)까지 잡아 조립을 깬다. */

:root {
  --ft-font: var(--k-ink);
  --ft-look: var(--k-red);
  --ft-vary: #9a6700;   /* 흰 글자 4.9:1 */
  --ft-motion: var(--k-blue);
  --ft-interaction: #0e7d4f;   /* 흰 글자 5.2:1 (--k-green은 3.8:1) */
  --ft-tone: #6e6456;   /* 흰 글자 5.8:1 */
  --ft-header: 64px;
}

[data-axis="font"] { --ft-axis: var(--ft-font); }
[data-axis="look"] { --ft-axis: var(--ft-look); }
[data-axis="vary"] { --ft-axis: var(--ft-vary); }
[data-axis="motion"] { --ft-axis: var(--ft-motion); }
[data-axis="interaction"] { --ft-axis: var(--ft-interaction); }
[data-axis="tone"] { --ft-axis: var(--ft-tone); }

.ft-section {
  scroll-margin-top: var(--ft-header);
}

/* ── 머리: 여섯 축 ───────────────────────────────────── */
.ft-axes {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  margin: 0.5rem 0 0;
  padding: 0;
  border: 1.5px solid var(--k-ink);
  border-radius: var(--k-radius-sm);
  background: var(--k-paper);
  list-style: none;
}

.ft-axes li {
  position: relative;
  display: grid;
  grid-template-rows: auto 3.2rem auto 1fr auto;
  gap: 0.35rem;
  min-inline-size: 0;
  padding: 1rem 0.95rem 1rem;
  border-inline-start: 1px solid var(--k-line);
}

.ft-axes li:first-child {
  border-inline-start: 0;
}

.ft-axes li::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  block-size: 4px;
  background: var(--ft-axis);
}

.ft-axes li:not(:last-child)::after {
  content: "→";
  position: absolute;
  inset-block-start: 2.6rem;
  inset-inline-end: -0.62em;
  z-index: 1;
  padding-block: 0.1rem;
  background: var(--k-paper);
  color: var(--k-muted);
  font-weight: 800;
  line-height: 1;
}

.ft-axis-no {
  display: inline-grid;
  place-items: center;
  inline-size: 1.45rem;
  block-size: 1.45rem;
  border-radius: 50%;
  background: var(--ft-axis);
  color: #fff;
  font-size: 0.76rem;
  font-weight: 800;
  line-height: 1;
}

.ft-axis-sample {
  display: flex;
  align-items: center;
  min-inline-size: 0;
}

.ft-axes strong {
  font-size: 1.05rem;
}

.ft-axes p {
  margin: 0;
  color: var(--k-ink-2);
  font-size: 0.84rem;
  line-height: 1.55;
}

.ft-axes code {
  justify-self: start;
  max-inline-size: 100%;
  font-size: 0.7rem;
  overflow-wrap: anywhere;
}

.ft-swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  max-inline-size: 7.5rem;
}

.ft-swatches i {
  inline-size: 18px;
  block-size: 18px;
  border: 1px solid rgb(0 0 0 / 14%);
  border-radius: 5px;
}

.ft-formula {
  margin: 0;
  color: var(--k-ink-2);
  font-size: 1rem;
}

.ft-formula > span {
  font-weight: 700;
  color: var(--k-ink);
}

.ft-formula > span[data-axis] {
  border-bottom: 3px solid var(--ft-axis);
}

/* ── 꼬리표(축: 고른 것) ─────────────────────────────── */
.ft-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  margin: 0;
}

.ft-badges > div {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.12rem 0.6rem 0.12rem 0.5rem;
  border: 1px solid var(--k-line);
  border-radius: 999px;
  background: var(--k-paper);
  font-size: 0.76rem;
  line-height: 1.5;
}

.ft-badges dt {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: var(--k-muted);
  font-weight: 600;
}

.ft-badges dt::before {
  content: "";
  inline-size: 0.5rem;
  block-size: 0.5rem;
  border-radius: 50%;
  background: var(--ft-axis);
}

.ft-badges dd {
  margin: 0;
  color: var(--k-ink);
  font-weight: 700;
}

/* ── 테마 갤러리 ─────────────────────────────────────── */
.ft-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.25rem;
  margin-block-end: 1.25rem;
}

.ft-text-field {
  display: inline-flex;
  flex: 1 1 14rem;
  align-items: center;
  gap: 0.5rem;
  max-inline-size: 24rem;
  font-size: 0.9rem;
  font-weight: 650;
}

.ft-text-field .k-input {
  flex: 1;
  min-inline-size: 0;
}

.ft-count {
  color: var(--k-muted);
  font-size: 0.86rem;
}

.ft-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.1rem;
}

.ft-card {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr;
  min-inline-size: 0;
  overflow: hidden;
  border: 1px solid var(--k-line);
  border-radius: var(--k-radius);
  background: var(--k-paper);
  scroll-margin-top: calc(var(--ft-header) + 16px);
  transition: border-color 160ms var(--k-ease), box-shadow 160ms var(--k-ease);
}

.ft-card:hover,
.ft-card:focus-within {
  border-color: var(--k-ink);
  box-shadow: 4px 4px 0 var(--k-ink);
}

.ft-anchor {
  position: absolute;
  inset-block-start: 0;
  scroll-margin-top: calc(var(--ft-header) + 16px);
}

.ft-card:target,
.ft-card:has(> .ft-anchor:target) {
  outline: 3px solid var(--k-red);
  outline-offset: 3px;
}

.ft-card-stage {
  min-block-size: 8.5rem;
  border: 0;
  border-bottom: 1px solid var(--k-line);
  border-radius: 0;
}

.ft-card-body {
  display: grid;
  grid-template-rows: auto auto auto auto auto 1fr;
  gap: 0.55rem;
  padding: 0.9rem 1rem 1rem;
}

.ft-card-body h3 {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.2rem 0.5rem;
  margin: 0;
  font-size: 1.12rem;
}

.ft-card-body h3 code {
  font-size: 0.72rem;
}

.ft-card-summary,
.ft-card-use,
.ft-card-short {
  margin: 0;
  line-height: 1.55;
}

.ft-card-summary {
  color: var(--k-ink-2);
  font-size: 0.9rem;
}

.ft-card-use,
.ft-card-short {
  color: var(--k-muted);
  font-size: 0.8rem;
}

.ft-card-actions {
  display: flex;
  flex-wrap: wrap;
  align-self: end;
  gap: 0.4rem;
  margin-block-start: 0.2rem;
}

.ft-link-btn {
  padding: 0;
  border: 0;
  background: none;
  color: var(--k-blue);
  font: inherit;
  text-decoration: underline;
  text-underline-offset: 0.2em;
  cursor: pointer;
}

.ft-link-btn:focus-visible {
  outline: 3px solid var(--k-yellow);
  outline-offset: 2px;
}

/* ── 조합기 ──────────────────────────────────────────── */
.ft-compose {
  background: var(--k-paper-2);
}

.ft-compose-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: 1.5rem;
  align-items: start;
}

.ft-side {
  position: sticky;
  inset-block-start: calc(var(--ft-header) + 16px);
  order: 2;
  display: grid;
  gap: 1rem;
  min-inline-size: 0;
}

.ft-controls {
  order: 1;
  display: grid;
  gap: 1rem;
  min-inline-size: 0;
}

.ft-compose-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.ft-theme-pick {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 650;
}

.ft-theme-pick select {
  min-block-size: 2.2rem;
  max-inline-size: 13rem;
  padding: 0 0.8rem;
  border: 1.2px solid var(--k-ink);
  border-radius: 999px;
  background: var(--k-paper);
  color: var(--k-ink);
  font: inherit;
  font-size: 0.88rem;
}

.ft-controls form {
  display: grid;
  gap: 1rem;
}

.ft-controls fieldset {
  display: grid;
  gap: 0.65rem;
  min-inline-size: 0;
  margin: 0;
  padding: 0.75rem 0.95rem 1rem;
  border: 1.5px solid var(--k-ink);
  border-radius: var(--k-radius-sm);
  background: var(--k-paper);
}

.ft-controls legend {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  padding: 0 0.4rem;
  font-size: 1.02rem;
  font-weight: 800;
}

.ft-controls legend small {
  color: var(--k-muted);
  font-size: 0.78rem;
  font-weight: 600;
}

.ft-group {
  display: grid;
  gap: 0.35rem;
}

.ft-group-name {
  margin: 0;
  color: var(--k-ink-2);
  font-size: 0.8rem;
  font-weight: 750;
}

.ft-group-name small {
  color: var(--k-muted);
  font-size: 0.76rem;
  font-weight: 500;
}

.ft-opts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.ft-opt {
  position: relative;
  display: inline-flex;
}

.ft-opt input {
  position: absolute;
  inset: 0;
  z-index: 1;
  margin: 0;
  opacity: 0;
  cursor: pointer;
}

.ft-opt > span {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  min-block-size: 2.2rem;
  padding: 0.2rem 0.85rem;
  border: 1px solid var(--k-line);
  border-radius: 999px;
  background: var(--k-paper);
  color: var(--k-ink-2);
  font-size: 0.88rem;
  font-weight: 650;
  line-height: 1.2;
}

.ft-opt > span:has(> .ft-opt-sample),
.ft-opt > span:has(> .ft-tone-dot) {
  padding-inline-start: 0.3rem;
}

.ft-opt:hover > span {
  border-color: var(--k-ink);
}

.ft-opt input:checked + span {
  border-color: var(--k-ink);
  background: var(--k-ink);
  color: #fff;
}

.ft-opt input:focus-visible + span {
  outline: 3px solid var(--k-yellow);
  outline-offset: 2px;
}

.ft-opt input:disabled + span {
  opacity: 0.45;
}

.ft-opt-sample {
  display: inline-grid;
  place-items: center;
  inline-size: 1.8rem;
  block-size: 1.8rem;
  overflow: hidden;
  border: 1px solid var(--k-line);
  border-radius: 7px;
  background: var(--k-tone, var(--k-paper));
  color: var(--k-ink);
  font-style: normal;
}

/* 자모 잉크는 글자 칸 위쪽으로 올라 있어(세벌·그림 자소) 칸 가운데로 조금 내린다 */
.ft-opt-sample > font-kku {
  translate: 0 0.16em;
}

.ft-opt-sample[data-tone="dark"],
.ft-opt-sample[data-tone="board"],
.ft-opt-sample[data-tone="blueprint"] {
  color: #f4f1ea;
}

.ft-tone-dot {
  inline-size: 1.25rem;
  block-size: 1.25rem;
  border: 1px solid rgb(0 0 0 / 18%);
  border-radius: 50%;
}

.ft-seed {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 0.6rem;
}

.ft-seed-label {
  font-size: 0.86rem;
  font-weight: 700;
}

.ft-seed-input {
  inline-size: 7.5rem;
  min-block-size: 2.2rem;
  padding: 0 0.75rem;
  border: 1.2px solid var(--k-ink);
  border-radius: 999px;
  background: var(--k-paper);
  color: var(--k-ink);
  font-family: var(--k-mono);
  font-size: 0.85rem;
}

.ft-seed-input:disabled {
  opacity: 0.4;
}

.ft-seed-input:focus-visible {
  outline: 3px solid var(--k-yellow);
  outline-offset: 2px;
}

.ft-note {
  margin: 0;
  color: var(--k-muted);
  font-size: 0.8rem;
  line-height: 1.55;
}

.ft-preview {
  display: grid;
  gap: 0.6rem;
  min-inline-size: 0;
  padding: 0.9rem;
  border: 1.5px solid var(--k-ink);
  border-radius: var(--k-radius-sm);
  background: var(--k-paper);
}

.ft-preview-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.ft-preview-top .ft-text-field {
  max-inline-size: none;
}

.ft-preview-stage {
  min-block-size: 11rem;
}

.ft-preview-meta {
  min-block-size: 1.5em;
  margin: 0;
  color: var(--k-ink-2);
  font-size: 0.86rem;
  line-height: 1.55;
}

.ft-preview-meta strong {
  color: var(--k-red);
}

.ft-code pre {
  max-block-size: 17rem;
}

.ft-code-actions {
  display: inline-flex;
  gap: 0.4rem;
}

/* ── 글꼴 견본 ───────────────────────────────────────── */
.ft-fonts {
  padding-block: clamp(4rem, 9vw, 7rem) 1rem;
  border-top: 1px solid var(--k-line);
}

.ft-fonts .k-section-head {
  margin-bottom: 1.5rem;
}

.ft-fonts .k-font-group:first-child {
  margin-top: 2rem;
}

/* ── 좁은 화면 ───────────────────────────────────────── */
@media (max-width: 1100px) {
  .ft-axes {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .ft-axes li:nth-child(4) {
    border-inline-start: 0;
  }

  .ft-axes li:nth-child(n + 4) {
    border-top: 1px solid var(--k-line);
  }

  .ft-axes li::after {
    display: none;
  }
}

@media (max-width: 960px) {
  .ft-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  /* 조합기: 견본을 위에 붙여 두고 조작을 아래로 */
  .ft-compose-grid {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
  }

  .ft-side {
    display: contents;
  }

  .ft-preview {
    position: sticky;
    inset-block-start: var(--ft-header);
    z-index: 5;
    order: 0;
    padding: 0.6rem;
    box-shadow: 0 6px 18px rgb(20 20 20 / 12%);
  }

  .ft-preview .ft-badges {
    display: none;
  }

  .ft-preview-stage {
    min-block-size: 6.5rem;
    padding: 0.75rem;
  }

  .ft-controls {
    order: 1;
  }

  .ft-code {
    order: 2;
  }
}

@media (max-width: 640px) {
  .ft-axes {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .ft-axes li:nth-child(4) {
    border-inline-start: 1px solid var(--k-line);
  }

  .ft-axes li:nth-child(odd) {
    border-inline-start: 0;
  }

  .ft-axes li:nth-child(n + 3) {
    border-top: 1px solid var(--k-line);
  }

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

  .ft-card-stage {
    min-block-size: 7rem;
  }

  .ft-preview-top .ft-text-field {
    flex-basis: 100%;
  }

  .ft-preview-meta {
    font-size: 0.8rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ft-card {
    transition: none;
  }
}