/* historia.css
 * Historia section: letter stack, year chips, timeline, photo panel.
 */

.history-topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  padding: 34px 0 22px;
  flex-shrink: 0;
}

.history-page-title {
  margin: 0 0 10px;
  font-size: clamp(2.02rem, 3vw, 2.4rem);
  color: var(--history-dark);
  font-weight: 900;
  letter-spacing: -0.01em;
}

.history-page-line {
  width: 44px;
  height: 3px;
  border-radius: 2px;
  background: var(--history-gold, var(--brand));
  opacity: 0.75;
}

.section-title-line {
  margin-top: 10px;
}

.history-page-subtitle {
  margin: 0;
  color: #6f7480;
  font-size: 0.88rem;
  text-align: right;
  font-family: var(--font-subtitle);
}

#historia .history-topbar,
#historia .history-team-col,
#historia .history-right-col {
  transition: opacity 760ms cubic-bezier(0.22, 1, 0.36, 1),
    transform 840ms cubic-bezier(0.22, 1, 0.36, 1), filter 820ms cubic-bezier(0.22, 1, 0.36, 1);
}

#historia .history-topbar {
  transition-delay: 110ms;
}

#historia .history-team-col {
  transition-delay: 220ms;
}

#historia .history-right-col {
  transition-delay: 300ms;
}

#historia .history-year-line {
  transform-origin: left center;
  transition: transform 760ms cubic-bezier(0.22, 1, 0.36, 1) 360ms;
}

#historia.reveal:not(.visible) .history-topbar {
  opacity: 0;
  transform: translateY(24px);
  filter: blur(4px);
}

#historia.reveal:not(.visible) .history-team-col {
  opacity: 0;
  transform: translateX(-34px) rotate(-0.9deg);
  filter: blur(6px);
}

#historia.reveal:not(.visible) .history-right-col {
  opacity: 0;
  transform: translateX(34px);
  filter: blur(6px);
}

#historia.reveal:not(.visible) .history-year-line {
  transform: scaleX(0);
}

#historia.reveal.visible .history-topbar,
#historia.reveal.visible .history-team-col,
#historia.reveal.visible .history-right-col {
  opacity: 1;
  transform: translateX(0) translateY(0) rotate(0deg);
  filter: blur(0);
}

#historia.reveal.visible .history-year-line {
  transform: scaleX(1);
}

.history-columns {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(24px, 4.8vw, 72px);
  flex: 1;
  min-height: 0;
  overflow: hidden;
  align-items: stretch;
}

.aeeum-scroll {
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.aeeum-scroll::-webkit-scrollbar {
  display: none;
}

.history-team-col {
  overflow-y: auto;
  display: flex;
  min-height: 0;
  height: 100%;
  padding-right: 4px;
}

.history-letter-col {
  padding-left: 2px;
}

.history-letter-stack {
  position: relative;
  display: flex;
  width: 100%;
  min-height: 100%;
  padding-right: 14px;
  padding-bottom: 14px;
}

.history-letter-sheet {
  border-radius: 14px;
  border: 1px solid;
  background: #fcfcf9;
}

.history-letter-sheet-back2 {
  position: absolute;
  inset: 0;
  z-index: 0;
  transform: rotate(2.6deg) translate(8px, 8px);
  border-color: #d7d2c5;
  background: #f1eee5;
}

.history-letter-sheet-back1 {
  position: absolute;
  inset: 0;
  z-index: 1;
  transform: rotate(1.2deg) translate(4px, 4px);
  border-color: #ddd7c9;
  background: #f7f4eb;
}

.history-letter-sheet-main {
  position: relative;
  flex: 1;
  display: flex;
  flex-direction: column;
  z-index: 2;
  overflow: hidden;
  border-color: #e3ddd0;
  padding: 36px 34px 56px;
  box-shadow: 0 8px 48px rgba(0, 0, 0, 0.09);
}

.history-letter-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
  gap: 16px;
}

.history-letter-org {
  margin: 0;
  color: var(--history-dark);
  font-size: 0.82rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.history-letter-sub {
  margin: 3px 0 0;
  color: #9c9a93;
  font-size: 0.63rem;
  letter-spacing: 0.03em;
}

.history-letter-date {
  margin: 0;
  color: #9c9a93;
  font-size: 0.67rem;
  white-space: nowrap;
}

.history-letter-divider {
  height: 1px;
  margin-bottom: 24px;
  background: linear-gradient(90deg, #ddd9ce, transparent);
}

.history-letter-salutation {
  margin: 0 0 14px;
  color: #777;
  font-size: 0.9rem;
  font-style: italic;
}

.history-letter-body {
  margin: 0;
  color: #565656;
  font-size: 0.9rem;
  line-height: 1.88;
}

.history-letter-body + .history-letter-body {
  margin-top: 14px;
}

.history-letter-signature {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid #e7e2d5;
}

.history-letter-signature-name {
  margin: 0 0 4px;
  color: var(--history-gold);
  font-size: 1.13rem;
  font-style: italic;
}

.history-letter-signature-year {
  margin: 0;
  color: #a6a39b;
  font-size: 0.62rem;
  letter-spacing: 0.05em;
}

.history-letter-seal {
  position: absolute;
  right: 28px;
  bottom: 28px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184, 137, 42, 0.8), rgba(184, 137, 42, 0.47));
  box-shadow: 0 2px 12px rgba(184, 137, 42, 0.27);
  display: grid;
  place-items: center;
}

.history-letter-seal span {
  color: #fff;
  font-size: 0.69rem;
  font-weight: 900;
  letter-spacing: 0.09em;
}

.history-team-panel {
  border: 1px solid #ddd7ca;
  background: linear-gradient(164deg, rgba(252, 252, 249, 0.98), rgba(243, 241, 234, 0.9));
  border-radius: 18px;
  padding: 18px 18px 16px;
  box-shadow: 0 10px 28px rgba(37, 32, 21, 0.07);
}

.history-photos-panel {
  flex-shrink: 0;
}

.history-team-head {
  display: grid;
  gap: 8px;
}

.history-team-kicker {
  margin: 0;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #786b54;
  font-weight: 800;
  font-family: var(--font-subtitle);
}

.history-team-title {
  margin: 0;
  font-size: clamp(1.2rem, 2vw, 1.56rem);
  color: var(--history-dark);
  letter-spacing: -0.01em;
}

.history-team-copy {
  margin: 0;
  font-size: 0.9rem;
  color: #6f6552;
  line-height: 1.62;
}

.history-team-grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

.history-team-grid .history-photo-card {
  margin: 0;
}

.history-team-grid .history-photo-shell {
  height: clamp(210px, 33vh, 300px);
}

.history-team-grid .history-photo-meta {
  padding: 12px 14px;
  gap: 10px;
}

.history-team-grid .history-photo-caption {
  margin: 0;
  padding: 0;
  color: #635949;
  font-size: 0.79rem;
  line-height: 1.42;
}

.history-team-grid .history-photo-shell img {
  object-position: center 24%;
}

.history-photo-card {
  margin: 0;
  border-radius: 12px;
  border: 1px solid #ddd5c5;
  background: var(--surface);
  overflow: hidden;
  display: grid;
}

.history-photo-media {
  height: clamp(350px, 19vh, 370px);
  overflow: hidden;
  position: relative;
  display: grid;
  place-items: center;
  color: #6e5e3d;
  font-size: 0.9rem;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  background:
    linear-gradient(
      135deg,
      var(--photo-tone-start, rgba(184, 137, 42, 0.34)),
      var(--photo-tone-end, rgba(184, 137, 42, 0.08))
    ),
    repeating-linear-gradient(
      -45deg,
      rgba(255, 255, 255, 0.36),
      rgba(255, 255, 255, 0.36) 10px,
      rgba(255, 255, 255, 0.16) 10px,
      rgba(255, 255, 255, 0.16) 20px
    );
}

.history-photo-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.history-photo-media img {
  transition: opacity 200ms ease;
}

.history-photo-media:has(img) {
  background: none;
}

.history-photo-caption {
  margin: 0;
  padding: 10px 10px 12px;
  color: #635949;
  font-size: 0.79rem;
  line-height: 1.42;
}

.history-team-hint {
  margin: 12px 0 0;
  font-size: 0.78rem;
  color: #776d5d;
  font-family: var(--font-subtitle);
}

.history-year-chips {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.history-year-chip {
  border: 1px solid #d5d0c3;
  background: #f9f8f4;
  color: #5e5649;
  border-radius: 999px;
  font-size: 0.77rem;
  font-weight: 700;
  padding: 6px 10px;
  cursor: pointer;
  transition: transform 180ms ease, background-color 180ms ease, border-color 180ms ease,
    color 180ms ease;
}

.history-year-chip:hover {
  transform: translateY(-1px);
  border-color: #c2b9a6;
}

.history-year-chip.is-active {
  background: var(--history-gold);
  border-color: var(--history-gold);
  color: #2b210f;
}

.history-year-chip[aria-selected="true"] {
  background: var(--history-gold);
  border-color: var(--history-gold);
  color: #2b210f;
}

.history-year-chip:focus-visible {
  outline: 2px solid rgba(184, 137, 42, 0.45);
  outline-offset: 1px;
}

.history-right-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
  height: 100%;
  min-height: 0;
  overflow: hidden;
}

.history-timeline-card {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  border: 1px solid #d9d2c2;
  border-radius: 16px;
  background:
    linear-gradient(180deg, rgba(252, 252, 248, 0.92) 0%, rgba(243, 241, 235, 0.68) 100%),
    #fbfaf6;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7), 0 8px 22px rgba(55, 45, 27, 0.08);
  padding: 12px 12px 0;
  overflow: hidden;
}

.history-timeline-top {
  flex-shrink: 0;
  padding: 0 6px 10px;
}

.history-timeline-hint {
  margin: 6px 0 0;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: auto;
  max-width: 100%;
  color: #6c6558;
  font-size: 0.77rem;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-weight: 800;
  font-family: var(--font-subtitle);
}

.history-timeline-hint-arrow {
  display: inline-block;
  color: var(--history-gold);
  font-size: 0.88rem;
  animation: historyHintPulse 1.15s ease-in-out infinite;
}

.history-year-display {
  padding-bottom: 0;
  flex-shrink: 0;
}

.history-year-number {
  display: block;
  font-size: clamp(4.1rem, 7vw, 5.1rem);
  line-height: 1;
  font-weight: 900;
  color: var(--history-dark);
  letter-spacing: -4px;
  font-variant-numeric: tabular-nums;
}

.history-year-number.is-animating {
  animation: historyYearIn 220ms ease both;
}

.history-year-line {
  width: 100%;
  height: 1px;
  margin-top: 8px;
  background: linear-gradient(90deg, rgba(184, 137, 42, 0.44), transparent);
}

.history-timeline-scroll {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  display: flex;
  flex-direction: column;
  position: relative;
  padding-inline: 10px 4px;
  scrollbar-width: thin;
  scrollbar-color: #b8892a rgba(184, 137, 42, 0.12);
}

.history-timeline-scroll::before,
.history-timeline-scroll::after {
  content: "";
  position: sticky;
  left: 0;
  right: 0;
  z-index: 3;
  pointer-events: none;
  display: block;
  height: 24px;
}

.history-timeline-scroll::before {
  top: 0;
  margin-bottom: -24px;
  background: linear-gradient(to bottom, rgba(255, 253, 248, 0.96), rgba(255, 253, 248, 0));
}

.history-timeline-scroll::after {
  bottom: 0;
  margin-top: -24px;
  background: linear-gradient(to top, rgba(251, 246, 235, 0.96), rgba(251, 246, 235, 0));
}

.history-timeline-scroll::-webkit-scrollbar {
  display: block;
  width: 10px;
}

.history-timeline-scroll::-webkit-scrollbar-track {
  background: rgba(184, 137, 42, 0.11);
  border-radius: 99px;
}

.history-timeline-scroll::-webkit-scrollbar-thumb {
  border-radius: 99px;
  background: linear-gradient(180deg, rgba(184, 137, 42, 0.95), rgba(154, 112, 29, 0.95));
  border: 2px solid rgba(255, 249, 238, 0.88);
}

.history-timeline-scroll::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(184, 137, 42, 1), rgba(154, 112, 29, 1));
}

.history-spacer {
  flex-shrink: 0;
  height: 120px;
}

.history-event-item {
  display: flex;
  gap: 22px;
  flex-shrink: 0;
}

.history-dot-col {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex-shrink: 0;
  padding-top: 3px;
}

.history-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  border: 2.5px solid var(--history-bg);
  background: #d4c9b4;
  z-index: 1;
  transition: background 220ms ease, box-shadow 220ms ease, transform 220ms ease;
}

.history-connector {
  width: 1.5px;
  min-height: 80px;
  flex: 1;
  margin-top: 6px;
  background: linear-gradient(to bottom, rgba(212, 201, 180, 0.2), rgba(212, 201, 180, 0.13));
  transition: background 260ms ease;
}

.history-event-content {
  flex: 1;
  padding-bottom: 84px;
  opacity: 0.35;
  transform: translateX(-5px);
  transition: opacity 240ms ease, transform 240ms ease;
}

.history-event-title {
  margin: 0 0 8px;
  font-size: 1.12rem;
  line-height: 1.28;
  letter-spacing: -0.2px;
  color: #999;
  transition: color 240ms ease;
}

.history-event-text {
  margin: 0;
  color: #777;
  font-size: 0.98rem;
  line-height: 1.7;
}

.history-event-item.is-past .history-dot {
  background: rgba(184, 137, 42, 0.4);
}

.history-event-item.is-past .history-connector {
  background: linear-gradient(to bottom, rgba(184, 137, 42, 0.4), rgba(184, 137, 42, 0.2));
}

.history-event-item.is-active .history-dot {
  background: var(--history-gold);
  box-shadow: 0 0 0 6px rgba(184, 137, 42, 0.13);
  transform: scale(1.2);
}

.history-event-item.is-active .history-event-content {
  opacity: 1;
  transform: translateX(0);
}

.history-event-item.is-active .history-event-title {
  color: var(--history-dark);
}

@keyframes historyYearIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes historyHintPulse {
  0%,
  100% {
    transform: translateY(0);
    opacity: 0.72;
  }
  50% {
    transform: translateY(2px);
    opacity: 1;
  }
}