/* ==========================================================================
   history.css — Explorer Robotics History Page
   Depends on: style.css
   ========================================================================== */

/* HERO */
.history-hero {
  background: var(--green);
  background-image:
    radial-gradient(circle at 88% 15%, rgba(247, 189, 45, 0.38), transparent 50%),
    radial-gradient(circle at 8% 95%, rgba(217, 98, 43, 0.4), transparent 48%);
  color: var(--cream);
  padding: 88px 0 72px;
}
.history-hero-inner { max-width: 680px; }
.history-hero .eyebrow { color: var(--yellow); }
.history-hero .eyebrow::before { background: var(--yellow); }
.history-hero h1 {
  font-size: clamp(2.8rem, 7vw, 5rem);
  color: var(--cream);
  margin-bottom: 1rem;
}
.history-hero-accent { color: var(--yellow); }
.history-hero p { font-size: 1.15rem; opacity: 0.85; max-width: 540px; line-height: 1.7; }

/* MILESTONES */
.history-milestones {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.history-milestone-icon { font-size: 2.5rem; margin-bottom: 12px; }

/* TIMELINE */
.history-timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}
.history-timeline::before {
  content: '';
  position: absolute;
  left: 72px;
  top: 0; bottom: 0;
  width: 3px;
  background: var(--green);
  opacity: 0.15;
}

.history-year-block {
  display: flex;
  gap: 40px;
  margin-bottom: 40px;
  position: relative;
}
.history-year-label {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--green);
  width: 72px;
  flex-shrink: 0;
  padding-top: 14px;
  text-align: right;
  position: relative;
}
.history-year-label::after {
  content: '';
  position: absolute;
  right: -24px;
  top: 20px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--yellow);
  border: 3px solid var(--green);
  transform: translateX(50%);
}

.history-events {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.history-event-card {
  background: var(--cream-panel);
  border: 2px solid var(--ink);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  box-shadow: var(--shadow-sm);
}
.history-event-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}
.history-event-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  color: var(--ink);
}
.history-event-meta {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.history-tag { color: var(--ink) !important; }
.history-tag-intl { background: #d4edda; color: var(--green) !important; }
.history-tag-national { background: #fde8d8; color: var(--orange-dark) !important; }
.history-tag-silver { background: #efefef; color: #555 !important; }
.history-tag-participated { background: #f5f5f5; color: #777 !important; }

/* CATEGORIES */
.history-cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

/* JOIN CTA */
.join-cta { background: var(--green); color: var(--cream); }
.join-cta h2 { color: var(--cream); }
.join-cta p { color: rgba(251,246,233,0.8); margin-bottom: 1.5rem; }

@media (max-width: 860px) {
  .history-milestones { grid-template-columns: 1fr; }
  .history-cat-grid { grid-template-columns: 1fr; }
  .history-timeline::before { left: 0; }
  .history-year-block { flex-direction: column; gap: 12px; }
  .history-year-label { width: auto; text-align: left; padding-top: 0; }
  .history-year-label::after { display: none; }
}