/* ==========================================================================
   Colentum — povijest-istrazivanja.css
   Stranica „Povijest istraživanja” (page-povijest-istrazivanja.php).
   ========================================================================== */

/* Vremenska crta */
.research-timeline {
  position: relative;
  display: grid;
  gap: 2.5rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

/* Okomita linija */
.research-timeline::before {
  content: "";
  position: absolute;
  top: 0.5rem;
  bottom: 0.5rem;
  left: 0.6875rem;
  width: 2px;
  border-radius: 2px;
  background: linear-gradient(to bottom,
    var(--c-terracotta-200) 0%,
    var(--c-terracotta-200) 85%,
    transparent 100%);
}

.research-item {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  padding-left: 2.75rem;
  scroll-margin-top: calc(var(--header-h) + 3rem);
}

/* Točka na liniji — u stilu znački */
.research-item__dot {
  position: absolute;
  top: 0.5rem;
  left: 0;
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--c-terracotta-50) 0%, var(--c-terracotta-100) 100%);
  box-shadow:
    inset 0 0 0 1px var(--c-terracotta-200),
    0 0 0 4px rgba(250, 232, 226, 0.7),
    0 4px 10px -4px rgba(206, 94, 55, 0.5);
}

.research-item__dot::after {
  content: "";
  position: absolute;
  inset: 0.4375rem;
  border-radius: 50%;
  background: var(--c-terracotta);
}

.research-item__year {
  display: flex;
  align-items: baseline;
  gap: 0.625rem;
}

.research-item__num {
  font-size: 2.25rem;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--c-terracotta);
}

.research-item__label {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--c-stone-500);
}

/* Desktop: godina lijevo (ljepljiva), linija u sredini, kartica desno */
@media (min-width: 900px) {
  .research-timeline { gap: 3.5rem; }

  .research-timeline::before { left: calc(11rem + 0.6875rem); }

  .research-item {
    grid-template-columns: 11rem 1fr;
    gap: 0 3.5rem;
    padding-left: 0;
  }

  .research-item__dot { left: 11rem; }

  .research-item__year {
    position: sticky;
    top: calc(var(--header-h) + 2.5rem);
    align-self: start;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.375rem;
    padding-right: 1rem;
    text-align: right;
  }

  .research-item__num { font-size: 3rem; }

  .research-card { grid-column: 2; }
}

/* Kartica */
.research-card {
  padding: 1.75rem;
  border-radius: var(--r-xl);
  background: var(--c-limestone);
  box-shadow: inset 0 0 0 1px rgba(214, 211, 209, 0.6);
}

@media (min-width: 768px) { .research-card { padding: 2.25rem 2.5rem; } }

.research-card__title {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--c-stone-900);
}

@media (min-width: 768px) { .research-card__title { font-size: 1.375rem; } }

.research-card__text p {
  margin-top: 1rem;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--c-stone-600);
}

/* Pročitaj više */
.research-card > .research-card__text:first-child > p:first-child { margin-top: 0; }

.research-card__more summary {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin-top: 1.25rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--c-terracotta);
  cursor: pointer;
  list-style: none;
  transition: color 0.2s;
}

.research-card__more summary::-webkit-details-marker { display: none; }
.research-card__more summary:hover { color: var(--c-terracotta-700); }

.research-card__more summary svg {
  width: 1rem;
  height: 1rem;
  transition: transform 0.25s var(--ease-out);
}

.research-card__close { display: none; }
.research-card__more[open] .research-card__open { display: none; }
.research-card__more[open] .research-card__close { display: inline; }
.research-card__more[open] summary svg { transform: rotate(180deg); }

/* Kad je otvoreno, „Prikaži manje” ide na dno teksta */
.research-card__more[open] {
  display: flex;
  flex-direction: column;
}

.research-card__more[open] summary { order: 2; align-self: flex-start; }
.research-card__more[open] > .research-card__text { order: 1; }

/* Citat */
.research-quote {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin: 1.5rem 0 0.5rem;
  padding: 1.375rem 1.5rem;
  border-radius: var(--r-lg);
  background: linear-gradient(140deg, var(--c-terracotta-50) 0%, rgba(250, 232, 226, 0.75) 100%);
  box-shadow:
    inset 0 0 0 1px var(--c-terracotta-200),
    0 10px 24px -14px rgba(206, 94, 55, 0.45);
}

.research-quote__icon {
  background: var(--c-white);
}

.research-quote p {
  margin: 0 !important;
  font-size: 0.875rem !important;
  font-style: italic;
  font-weight: 500;
  line-height: 1.7 !important;
  color: var(--c-terracotta-800) !important;
}

.research-quote cite {
  display: block;
  margin-top: 0.75rem;
  font-size: 0.75rem;
  font-style: normal;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--c-terracotta-700);
}

.research__extra { padding-top: 4rem; }