/* ── CHALLENGE HERO ── */
.challenge-hero {
  padding: 140px 48px 80px;
  background: var(--ink);
  color: var(--paper);
}

.challenge-hero-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.challenge-tag {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}

.challenge-hero-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(40px, 5vw, 72px);
  font-weight: 300;
  line-height: 1.05;
  margin-bottom: 20px;
  color: var(--paper);
}

.challenge-hero-desc {
  color: rgba(245,243,239,0.6);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 460px;
}

.challenge-countdown-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 40px;
}

.countdown-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.countdown-number {
  font-family: 'Cormorant Garamond', serif;
  font-size: 48px;
  font-weight: 300;
  color: var(--paper);
  line-height: 1;
}

.countdown-label {
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(245,243,239,0.4);
}

.countdown-sep {
  font-family: 'Cormorant Garamond', serif;
  font-size: 40px;
  font-weight: 300;
  color: rgba(245,243,239,0.2);
  margin-bottom: 16px;
}

.challenge-hero-actions {
  display: flex;
  gap: 20px;
  align-items: center;
}

.challenge-hero-actions .btn-primary {
  background: var(--accent);
  color: var(--ink);
}

.challenge-hero-actions .btn-ghost {
  color: rgba(245,243,239,0.5);
  border-color: rgba(245,243,239,0.2);
}

.challenge-hero-actions .btn-ghost:hover {
  color: var(--paper);
  border-color: var(--paper);
}

/* Challenge photo */
.challenge-hero-photo {
  border-radius: 4px;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: rgba(255,255,255,0.05);
}

.challenge-hero-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.challenge-photo-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ── ARCHIVE ── */
.past-section {
  padding: 80px 0;
}

.past-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
}

.archive-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 0;
}

.archive-card {
  border: 1px solid var(--soft);
  border-radius: 4px;
  overflow: hidden;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.archive-card:hover {
  border-color: var(--accent);
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}

.archive-photo {
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
  background: var(--warm);
}

.archive-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.archive-card:hover .archive-photo img {
  transform: scale(1.03);
}

.archive-photo-empty {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--soft);
  letter-spacing: 0.04em;
}

.archive-winner {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.7) 0%, transparent 100%);
  padding: 20px 14px 12px;
  font-size: 12px;
  color: rgba(255,255,255,0.8);
  letter-spacing: 0.03em;
}

.archive-body {
  padding: 16px;
}

.archive-week {
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}

.archive-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 20px;
  font-weight: 300;
  color: var(--ink);
  margin-bottom: 6px;
}

.archive-meta {
  font-size: 12px;
  color: var(--muted);
  letter-spacing: 0.03em;
}

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  .challenge-hero { padding: 100px 24px 60px; }
  .challenge-hero-inner { grid-template-columns: 1fr; gap: 40px; }
  .challenge-hero-photo { display: none; }
  .past-inner { padding: 0 24px; }
  .archive-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 500px) {
  .archive-grid { grid-template-columns: 1fr; }
}