/* ===== RESET ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --red:        #c0392b;
  --red-dark:   #922b21;
  --green:      #1e8449;
  --green-dark: #145a32;
  --gold:       #f1c40f;
  --cream:      #fdfaf4;
  --text:       #2c2c2c;
  --text-light: #666;
  --white:      #ffffff;
}

body {
  background: var(--cream);
  font-family: 'Georgia', 'Hiragino Mincho ProN', serif;
  color: var(--text);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 32px 16px;
}

/* ===== FLYER WRAPPER ===== */
.flyer {
  width: 100%;
  max-width: 680px;
  background: var(--white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0,0,0,0.15);
}

/* ===== HEADER ===== */
.flyer-header {
  background: linear-gradient(135deg, var(--red-dark) 0%, var(--red) 50%, #922b21 100%);
  padding: 48px 32px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.flyer-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 12px,
    rgba(255,255,255,0.03) 12px,
    rgba(255,255,255,0.03) 24px
  );
}

.header-badge {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.3em;
  color: var(--gold);
  border: 1px solid var(--gold);
  padding: 4px 16px;
  border-radius: 40px;
  margin-bottom: 20px;
  position: relative;
}

.header-icon {
  font-size: clamp(3rem, 8vw, 4.5rem);
  display: block;
  margin-bottom: 16px;
  position: relative;
}

.flyer-header h1 {
  font-size: clamp(1.8rem, 5vw, 2.8rem);
  color: var(--white);
  letter-spacing: 0.12em;
  line-height: 1.3;
  position: relative;
  margin-bottom: 8px;
}

.flyer-header h1 span {
  color: var(--gold);
}

.header-sub {
  font-size: clamp(0.85rem, 2vw, 0.95rem);
  color: rgba(255,255,255,0.75);
  letter-spacing: 0.08em;
  position: relative;
  margin-top: 12px;
}

/* ===== DATE BAND ===== */
.date-band {
  background: var(--green);
  padding: 20px 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
}

.date-item {
  text-align: center;
}

.date-label {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: rgba(255,255,255,0.7);
  display: block;
  margin-bottom: 4px;
}

.date-value {
  font-size: clamp(1rem, 3vw, 1.25rem);
  font-weight: bold;
  color: var(--white);
  letter-spacing: 0.05em;
}

.date-divider {
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.3);
}

/* ===== BODY ===== */
.flyer-body {
  padding: 40px 32px;
}

/* ===== INTRO ===== */
.intro {
  text-align: center;
  margin-bottom: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(0,0,0,0.08);
}

.intro p {
  font-size: clamp(0.88rem, 2vw, 0.96rem);
  line-height: 2;
  color: var(--text-light);
}

/* ===== DETAILS ===== */
.section-title {
  font-size: 0.72rem;
  letter-spacing: 0.25em;
  color: var(--red);
  text-align: center;
  margin-bottom: 24px;
}

.detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 40px;
}

.detail-card {
  background: #fdf6f6;
  border-left: 3px solid var(--red);
  border-radius: 0 4px 4px 0;
  padding: 20px 20px;
}

.detail-card .icon {
  font-size: 1.4rem;
  margin-bottom: 8px;
  display: block;
}

.detail-card h3 {
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  color: var(--red);
  margin-bottom: 6px;
}

.detail-card p {
  font-size: 0.88rem;
  color: var(--text);
  line-height: 1.7;
}

/* ===== PROGRAM ===== */
.program {
  margin-bottom: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(0,0,0,0.08);
}

.program-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.program-list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  font-size: 0.9rem;
  line-height: 1.6;
}

.program-time {
  font-size: 0.78rem;
  color: var(--red);
  letter-spacing: 0.05em;
  white-space: nowrap;
  padding-top: 2px;
  min-width: 52px;
}

/* ===== CTA ===== */
.cta {
  text-align: center;
  background: linear-gradient(135deg, var(--red-dark), var(--red));
  margin: 0 -32px -40px;
  padding: 36px 32px;
  color: var(--white);
}

.cta p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.8);
  margin-bottom: 12px;
  letter-spacing: 0.05em;
}

.cta .deadline {
  font-size: clamp(1rem, 3vw, 1.2rem);
  font-weight: bold;
  color: var(--gold);
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

.cta-btn {
  display: inline-block;
  background: var(--gold);
  color: var(--red-dark);
  font-size: 0.9rem;
  font-weight: bold;
  letter-spacing: 0.1em;
  padding: 14px 40px;
  border-radius: 40px;
  font-family: inherit;
}

/* ===== FOOTER ===== */
.flyer-footer {
  background: var(--green-dark);
  padding: 20px 32px;
  text-align: center;
}

.flyer-footer p {
  font-size: 0.75rem;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.1em;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 520px) {
  body { padding: 16px 8px; }

  .flyer-header { padding: 36px 20px 32px; }
  .flyer-body   { padding: 32px 20px; }

  .date-band { gap: 16px; }
  .date-divider { display: none; }

  .detail-grid { grid-template-columns: 1fr; }

  .cta { margin: 0 -20px -32px; }
}