/* =========================================================
   VRI — Knowledge index (archive) page
   Reuses .report / .report-grid from components.css.
   ========================================================= */

/* ---------- INDEX HERO ---------- */
.kindex-hero {
  max-width: var(--maxw); margin: 0 auto;
  padding: clamp(2.4rem,5vw,4.2rem) var(--gutter) clamp(1.6rem,3vw,2.4rem);
}
.kindex-hero__lab {
  font-family: var(--mono); font-weight: 700; font-size: .8rem;
  text-transform: uppercase; letter-spacing: .12em;
}
.kindex-hero__lab::before {
  content: ""; display: inline-block; width: 46px; height: 8px;
  background: var(--blue); margin-right: .8rem; vertical-align: middle;
}
.kindex-hero h1 {
  font-family: var(--gothic); font-weight: 900;
  font-size: clamp(2.4rem,6vw,4.6rem); line-height: 1.0; letter-spacing: -.02em;
  margin: 1.2rem 0 0;
}
.kindex-hero__deck {
  font-family: var(--mincho); font-weight: 700;
  font-size: clamp(1.05rem,2vw,1.4rem); line-height: 1.7;
  color: var(--ink-soft); margin-top: 1.2rem; max-width: 60ch;
}

/* ---------- FEATURED (latest) ---------- */
.kn-feat { display: block; border-top: var(--line-thick); border-bottom: var(--line); background: var(--paper-3); }
.kn-feat__in {
  max-width: var(--maxw); margin: 0 auto;
  display: grid; grid-template-columns: 1fr 300px; align-items: stretch;
}
.kn-feat__body { padding: clamp(1.8rem,3.5vw,3rem) var(--gutter); }
.kn-feat__meta {
  display: flex; align-items: center; gap: .7rem; flex-wrap: wrap;
  font-family: var(--mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .07em;
}
.kn-feat__badge { background: var(--blue); color: #fff; padding: .3em .7em; font-weight: 700; }
.kn-feat__title {
  font-family: var(--gothic); font-weight: 900;
  font-size: clamp(1.7rem,3.4vw,2.8rem); line-height: 1.1; letter-spacing: -.01em;
  margin-top: 1.2rem; text-wrap: balance; max-width: 22ch;
}
.kn-feat__deck { color: var(--ink-soft); font-size: 1.02rem; line-height: 1.8; margin-top: 1rem; max-width: 52ch; }
.kn-feat__read {
  display: inline-flex; align-items: center; gap: .5em; margin-top: 1.6rem;
  font-family: var(--mono); font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; font-weight: 700;
}
.kn-feat__read .a { color: var(--blue); transition: transform .18s; }
.kn-feat__side {
  background: var(--ink); color: var(--paper); position: relative; overflow: hidden;
  display: flex; flex-direction: column; justify-content: space-between;
  padding: 1.4rem; border-left: var(--line);
}
.kn-feat__side::before { content: ""; position: absolute; inset: 0; background-image: linear-gradient(to right, color-mix(in srgb, var(--paper) 8%, transparent) 1px, transparent 1px); background-size: 48px 100%; }
.kn-feat__big { position: relative; font-family: var(--gothic); font-weight: 900; font-size: clamp(3rem,7vw,5rem); line-height: 1; color: color-mix(in srgb, var(--blue) 55%, var(--paper)); align-self: flex-end; }
.kn-feat__sidelab { position: relative; font-family: var(--mono); font-size: .66rem; letter-spacing: .12em; text-transform: uppercase; opacity: .7; }
.kn-feat:hover .kn-feat__body { background: var(--ink); color: var(--paper); }
.kn-feat:hover .kn-feat__deck { color: color-mix(in srgb, var(--paper) 72%, transparent); }
.kn-feat:hover .kn-feat__read .a { transform: translate(3px,-3px); color: var(--acid); }
.kn-feat:hover .kn-feat__side { background: var(--blue); }
.kn-feat:hover .kn-feat__big { color: color-mix(in srgb, #fff 80%, var(--blue)); }
@media (max-width: 760px){
  .kn-feat__in { grid-template-columns: 1fr; }
  .kn-feat__side { flex-direction: row; align-items: center; border-left: none; border-top: var(--line); min-height: 96px; }
  .kn-feat__big { align-self: center; font-size: 3rem; }
}

/* ---------- TOOLBAR (search + sort) ---------- */
.kn-toolbar {
  max-width: var(--maxw); margin: 0 auto;
  display: grid; grid-template-columns: 1fr auto; gap: 1rem; align-items: center;
  padding: clamp(1.4rem,3vw,2.2rem) var(--gutter) 1.1rem;
}
.kn-search { position: relative; display: flex; align-items: center; }
.kn-search__ico { position: absolute; left: 1rem; width: 18px; height: 18px; color: var(--ink-soft); pointer-events: none; }
.kn-search input {
  width: 100%; font-family: var(--body); font-size: 1rem; color: var(--ink);
  background: var(--paper-3); border: var(--line); padding: .9em 1em .9em 2.8em;
  border-radius: 0; -webkit-appearance: none; appearance: none;
}
.kn-search input::placeholder { color: color-mix(in srgb, var(--ink) 45%, transparent); }
.kn-search input:focus { outline: none; border-color: var(--blue); box-shadow: 3px 3px 0 var(--blue); }
.kn-sort { display: flex; align-items: center; gap: .6rem; font-family: var(--mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; }
.kn-sort select {
  font-family: var(--mono); font-size: .74rem; text-transform: uppercase; letter-spacing: .05em;
  background: var(--paper-3); color: var(--ink); border: var(--line); padding: .7em 2.2em .7em .9em;
  border-radius: 0; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%230F1320' stroke-width='1.6'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right .9em center; -webkit-appearance: none; appearance: none;
}
.kn-sort select:focus { outline: none; border-color: var(--blue); }
@media (max-width: 620px){ .kn-toolbar { grid-template-columns: 1fr; } .kn-sort { justify-content: space-between; } }

/* ---------- FILTER ROWS (業種 / テーマ) ---------- */
.kn-filterwrap { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--gutter); }
.kn-filterrow { display: grid; grid-template-columns: 92px 1fr; align-items: stretch; border-top: var(--line); }
.kn-filterrow:last-child { border-bottom: var(--line); }
.kn-filterrow__lab {
  font-family: var(--mono); font-size: .68rem; text-transform: uppercase; letter-spacing: .08em;
  font-weight: 700; color: var(--blue); display: flex; align-items: center;
  padding-left: .2rem; border-right: var(--line);
}
.kn-chips { display: flex; flex-wrap: wrap; gap: 0; }
.kn-chips button {
  font-family: var(--mono); font-size: .74rem; text-transform: uppercase; letter-spacing: .04em;
  padding: .7rem 1rem; background: var(--paper-3); border: none; border-right: var(--line);
  border-bottom: 1px solid color-mix(in srgb, var(--ink) 12%, transparent);
  cursor: pointer; transition: background .15s, color .15s; color: var(--ink);
}
.kn-chips button .n { opacity: .45; margin-left: .45em; font-size: .9em; }
.kn-chips button:hover { background: var(--blue); color: #fff; }
.kn-chips button:hover .n { opacity: .8; }
.kn-chips button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.kn-chips button[aria-pressed="true"] .n { opacity: .6; }
@media (max-width: 620px){ .kn-filterrow { grid-template-columns: 64px 1fr; } .kn-filterrow__lab { font-size: .6rem; } }

/* ---------- RESULT COUNT ---------- */
.kn-count {
  max-width: var(--maxw); margin: 0 auto;
  padding: 1.4rem var(--gutter) .4rem; display: flex; align-items: baseline; gap: .6rem;
  font-family: var(--mono); font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-soft);
}
.kn-count b { font-family: var(--gothic); font-weight: 900; font-size: 1.4rem; color: var(--ink); }
.kn-count__clear { margin-left: auto; cursor: pointer; color: var(--blue); border-bottom: 1px solid currentColor; }
.kn-count__clear[hidden] { display: none; }

/* ---------- GRID (full-bleed, reuses .report) ---------- */
.kn-grid-wrap { border-top: var(--line); }
.kn-grid-wrap .report-grid { border-bottom: var(--line); }
/* 一覧カードを白帯に（ホームは .two-tone #knowledge .report で白化されるが、
   この一覧ページは #knowledge ラッパを使わないため明示する。hover の反転は維持） */
.kn-grid-wrap .report { background: var(--paper-3); }

/* ---------- EMPTY STATE ---------- */
.kn-empty { padding: clamp(3rem,8vw,6rem) var(--gutter); text-align: center; }
.kn-empty__big { font-family: var(--gothic); font-weight: 900; font-size: clamp(1.4rem,3vw,2rem); }
.kn-empty p { color: var(--ink-soft); margin-top: .8rem; }
.kn-empty .btn { margin-top: 1.6rem; }

/* ---------- LOAD MORE ---------- */
.kn-more { display: flex; flex-direction: column; align-items: center; gap: .8rem; padding: clamp(2rem,4vw,3.2rem) var(--gutter); border-bottom: var(--line-thick); }
.kn-more__bar { width: 100%; max-width: 480px; height: 6px; background: var(--paper-2); position: relative; }
.kn-more__bar i { position: absolute; left: 0; top: 0; bottom: 0; background: var(--blue); transition: width .3s; }
.kn-more__meta { font-family: var(--mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-soft); }
.kn-more[hidden] { display: none; }

/* =========================================================
   HOMEPAGE — "view all" bar under the latest-3 teaser
   ========================================================= */
.kn-allbar {
  display: flex; align-items: center; justify-content: space-between; gap: 1.2rem;
  flex-wrap: wrap;
  padding: clamp(1.3rem,2.6vw,1.8rem) var(--gutter);
  border-top: var(--line); background: var(--ink); color: var(--paper);
  transition: background .18s, color .18s;
}
.kn-allbar__txt { font-family: var(--gothic); font-weight: 700; font-size: clamp(1rem,1.8vw,1.25rem); }
.kn-allbar__txt b { color: var(--acid); font-weight: 900; }
.kn-allbar__cta {
  font-family: var(--mono); font-size: .82rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em;
  display: inline-flex; align-items: center; gap: .6em;
  border: 2px solid var(--paper); padding: .7em 1.2em; transition: transform .15s, background .18s, color .18s;
}
.kn-allbar:hover { background: var(--blue); }
.kn-allbar:hover .kn-allbar__cta { background: var(--acid); color: var(--ink); border-color: var(--acid); }
.kn-allbar:hover .kn-allbar__cta .arr { transform: translateX(4px); }
.kn-allbar__cta .arr { transition: transform .18s; }

/* homepage teaser grid: close the top edge so the first row reads bounded */
#knowledge .report-grid { border-top: var(--line); }

/* ---------- inline CTA（article.css の .art-cta と同等。一覧ページ用に内包） ---------- */
.art-cta { background: var(--ink); color: var(--paper); }
.art-cta__in { max-width: var(--maxw); margin: 0 auto; padding: clamp(2.4rem,5vw,4rem) var(--gutter); display: flex; justify-content: space-between; align-items: center; gap: 2rem; flex-wrap: wrap; }
.art-cta h3 { font-family: var(--gothic); font-weight: 900; font-size: clamp(1.6rem,3.4vw,2.6rem); line-height: 1.1; }
.art-cta .btn { background: var(--acid); color: var(--ink); border-color: var(--acid); }
.art-cta .btn:hover { background: var(--paper); border-color: var(--paper); }