/* ══════════════════════════════════════════════════════════
   CHRONIK — Club history / timeline page
══════════════════════════════════════════════════════════ */

/* ── Page header ── */
.chr-header {
  padding-top: var(--nav-h);
  position: relative;
  overflow: hidden;
}
.chr-header::before { content: '1908'; }
.chr-header-inner {
  max-width: 90rem;
  margin: 0 auto;
  padding: 3rem clamp(1.25rem, 5vw, 3rem) 2.75rem;
  position: relative;
  z-index: 1;
}
.chr-header-title {
  font-family: 'Lippe Condensed', sans-serif;
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .02em;
  line-height: .95;
  color: var(--white);
  margin: .5rem 0 .875rem;
}

/* ── Main layout ── */
.chr-main { padding: 3rem 0 5rem; }
.chr-outer {
  max-width: 90rem;
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 5vw, 3rem);
}

/* ── Controls bar ── */
.chr-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.2rem;
  margin-bottom: 3rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}
.chr-stat {
  font-family: 'Lippe Condensed', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: .15em;
  text-transform: uppercase;
  color: var(--muted);
}
.chr-stat strong { color: var(--red); font-size: 1.2rem; }
.chr-toggle-btn:hover {
  border-color: var(--faint);
  color: var(--white);
}
.chr-toggle-btn svg { stroke: currentColor; transition: transform .3s; flex-shrink: 0; }
.chr-toggle-btn.all-open svg { transform: rotate(180deg); }

/* ── Era banner ── */
.chr-era-banner {
  background-color: rgba(var(--rgb-pure-black), .6);
  background-image:
    repeating-linear-gradient(  0deg, transparent 0, transparent 17px, var(--ci-grid) 17px, var(--ci-grid) 18px),
    repeating-linear-gradient( 60deg, transparent 0, transparent 17px, var(--ci-grid) 17px, var(--ci-grid) 18px),
    repeating-linear-gradient(-60deg, transparent 0, transparent 17px, var(--ci-grid) 17px, var(--ci-grid) 18px);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin: 0 calc(-1 * clamp(1.25rem, 5vw, 3rem)) 0;
  padding: 1rem clamp(1.25rem, 5vw, 3rem);
  display: flex;
  align-items: baseline;
  gap: 1.2rem;
}
.chr-era-years {
  font-family: 'Lippe Condensed', sans-serif;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--red);
}
.chr-era-title {
  font-family: 'Lippe Condensed', sans-serif;
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .04em;
  color: var(--white);
  line-height: 1;
}

/* ── Timeline track ── */
.chr-entries {
  position: relative;
  padding: 1.5rem 0;
}
/* Continuous vertical line */
.chr-entries::before {
  content: '';
  position: absolute;
  /* year column = 6rem, gap = 2.25rem total → line center = 6rem + 1rem = 7rem */
  left: 7rem;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(
    to bottom,
    rgba(var(--rgb-red), .15) 0%,
    rgba(var(--rgb-red), .5) 50%,
    var(--red) 100%
  );
  z-index: 0;
}

/* ── Single entry ── */
.chr-entry {
  display: grid;
  grid-template-columns: 6rem 2rem 1fr;
  margin-bottom: 1.2rem;
  position: relative;
}

/* Year + date column */
.chr-col-year {
  grid-column: 1;
  text-align: right;
  padding-right: .75rem;
  padding-top: .625rem;
}
.chr-year {
  font-family: 'Lippe Condensed', sans-serif;
  font-size: 1.125rem;
  font-weight: 900;
  color: var(--gray-200);
  line-height: 1;
  letter-spacing: -.01em;
  transition: color .2s;
}
.chr-entry:hover .chr-year,
.chr-entry--open .chr-year { color: var(--red); }
.chr-entry--highlight .chr-year { color: var(--red); opacity: 1; }
.chr-date {
  font-family: 'Lippe Condensed', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-top: .15rem;
}

/* Dot column */
.chr-col-dot {
  grid-column: 2;
  position: relative;
  z-index: 1;
}
.chr-dot {
  position: absolute;
  top: .875rem;
  left: 50%;
  transform: translateX(-50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid rgba(var(--rgb-border), 1);
  transition: border-color .2s, background .2s, width .2s, height .2s, top .2s;
}
.chr-entry:hover .chr-dot {
  border-color: var(--red);
  background: rgba(var(--rgb-red), .2);
}
.chr-entry--highlight .chr-dot {
  width: 14px;
  height: 14px;
  top: .75rem;
  background: var(--red);
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(var(--rgb-red), .2);
}
.chr-entry--milestone .chr-dot {
  width: 18px;
  height: 18px;
  top: .625rem;
  background: var(--red);
  border-color: var(--red);
  box-shadow: 0 0 0 5px rgba(var(--rgb-red), .25), 0 0 0 10px rgba(var(--rgb-red), .1);
}

/* Card column */
.chr-col-card {
  grid-column: 3;
  padding-left: 1.2rem;
}

/* ── Card ── */
.chr-card {
  background: var(--surface);
  border: 1px solid var(--border);
  transition: background .2s;
}
.chr-entry--highlight .chr-card { border-top: 2px solid var(--red); }
.chr-entry--milestone .chr-card {
  border-top: 3px solid var(--red);
  background: rgba(var(--rgb-red), .04);
}
.chr-card:hover { background: var(--surface2); }

/* Card summary row (always visible) */
.chr-card-btn {
  width: 100%;
  background: none;
  border: none;
  padding: .875rem 1.2rem;
  text-align: left;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: .75rem;
}
.chr-card-left {
  display: flex;
  flex-direction: column;
  gap: .3rem;
  flex: 1;
}
.chr-club-badge {
  font-family: 'Lippe Condensed', sans-serif;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: .15em;
  text-transform: uppercase;
  padding: .1rem .45rem;
  border-radius: 2px;
  display: inline-block;
  align-self: flex-start;
}
.chr-club-badge--borussia {
  background: rgba(var(--rgb-white), .08);
  color: var(--gray-200);
}
.chr-club-badge--teutonia {
  background: rgba(var(--rgb-white), .08);
  color: var(--gray-200);
}
.chr-club-badge--svl {
  background: rgba(var(--rgb-red), .15);
  color: var(--red);
}
.chr-card-title {
  font-family: 'Lippe Condensed', sans-serif;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--white);
  line-height: 1.2;
  margin: 0;
}
.chr-entry--milestone .chr-card-title {
  font-size: 1.125rem;
}
.chr-card-chevron {
  flex-shrink: 0;
  color: var(--muted);
  margin-top: .25rem;
  transition: transform .3s ease, color .2s;
}
.chr-entry--open .chr-card-chevron {
  transform: rotate(180deg);
  color: var(--red);
}

/* Expandable body */
.chr-body-wrap {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .3s ease;
  overflow: hidden;
}
.chr-entry--open .chr-body-wrap {
  grid-template-rows: 1fr;
}
.chr-body-inner {
  overflow: hidden;
}
.chr-body-text {
  padding: 0 1rem 1.2rem;
  font-size: 1.4rem;
  color: var(--gray-100);
  line-height: 1.4;
  border-top: 1px solid rgba(var(--rgb-border), .6);
  margin: 0;
  padding-top: .75rem;
}

/* ── 1997 Fusion — special full-width treatment ── */
.chr-entry--fusion {
  grid-template-columns: 6rem 2rem 1fr;
}
.chr-entry--fusion .chr-card {
  background: linear-gradient(135deg, rgba(var(--rgb-red), .08) 0%, var(--surface) 60%);
  border: 1px solid rgba(var(--rgb-red), .3);
  border-top: 3px solid var(--red);
}
.chr-entry--fusion .chr-card-title {
  font-size: 1.25rem;
  color: var(--white);
}
.chr-entry--fusion .chr-dot {
  width: 22px;
  height: 22px;
  top: .5rem;
  background: var(--red);
  border-color: var(--red);
  box-shadow: 0 0 0 6px rgba(var(--rgb-red), .3), 0 0 0 12px rgba(var(--rgb-red), .12);
}
.chr-entry--fusion .chr-year { color: var(--red); font-size: 1.375rem; }
.chr-fusion-label {
  font-family: 'Lippe Condensed', sans-serif;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--red);
  background: rgba(var(--rgb-red), .12);
  padding: .15rem .5rem;
  display: inline-block;
  margin-bottom: .25rem;
}

/* ── Responsive ── */
@media (max-width: 52rem) {
  .chr-entries::before { left: 5.25rem; }
  .chr-entry { grid-template-columns: 4.5rem 1.5rem 1fr; }
  .chr-year { font-size: 1.2rem; }
}
@media (max-width: 40rem) {
  .chr-header-inner { padding: 1.75rem 1rem 1.5rem; }
  .chr-outer { padding: 0 1.2rem; }
  .chr-main { padding: 2rem 0 4rem; }
  .chr-entries::before { display: none; }
  .chr-entry { grid-template-columns: 0 0 1fr; }
  .chr-col-year, .chr-col-dot { display: none; }
  .chr-col-card { padding-left: 0; }
  /* Show year in card button instead */
  .chr-card-btn::before {
    content: attr(data-year);
    font-family: 'Lippe Condensed', sans-serif;
    font-size: 1.2rem;
    font-weight: 800;
    color: var(--red);
    letter-spacing: .1em;
    display: block;
    margin-bottom: .25rem;
  }
}