/* 生理期豐胸法 — 需先載入 calculator/style.css、header2026.css、footer2026.css */

.page-cup28-calc {
  min-height: 100vh;
}

.page-cup28-calc .cup28-main {
  padding: 1.5rem 1rem 2.5rem;
}

.page-cup28-calc .container {
  max-width: 700px;
  margin: 0 auto;
}

.page-cup28-calc .card {
  background: var(--surface);
  border-radius: 1rem;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-hover);
  padding: 1.15rem 1rem 1.35rem;
  margin-bottom: 1.5rem;
}

.page-cup28-calc .card-title {
  font-size: 1.45rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 1.25rem;
  color: var(--btn-primary);
}

.page-cup28-calc .input-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  margin-bottom: 1rem;
}

.page-cup28-calc .input-group label {
  display: block;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.45rem;
}

.page-cup28-calc .input-group input {
  width: 100%;
  padding: 0.55rem 0.75rem;
  font-size: 1rem;
  font-family: inherit;
  border: 1px solid var(--border);
  border-radius: 0.55rem;
  background: var(--brand-light);
  color: var(--text);
  transition: border-color 0.15s, box-shadow 0.15s;
}

.page-cup28-calc .input-group input:focus {
  outline: none;
  border-color: var(--border-hover);
  background: var(--surface);
  box-shadow: 0 0 0 3px rgba(168, 0, 0, 0.1);
}

.page-cup28-calc .legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem 0.85rem;
  justify-content: center;
  margin-top: 1.25rem;
}

.page-cup28-calc .legend-item {
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.page-cup28-calc .legend-color {
  width: 1.15rem;
  height: 1.15rem;
  border-radius: 0.25rem;
  flex-shrink: 0;
}

.page-cup28-calc .legend-item span {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
}

.page-cup28-calc .menstrual-color {
  background: #fb7299;
}

.page-cup28-calc .golden-color {
  background: #f59e0b;
}

.page-cup28-calc .effective-color {
  background: #10b981;
}

.page-cup28-calc .maintain-color {
  background: #6366f1;
}

.page-cup28-calc .month-calendar {
  margin-bottom: 1.5rem;
}

.page-cup28-calc .month-title {
  font-size: 1.1rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 0.85rem;
  color: var(--text);
}

.page-cup28-calc .calendar {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.2rem;
}

.page-cup28-calc .calendar-header {
  text-align: center;
  font-weight: 700;
  padding: 0.4rem 0.2rem;
  background: var(--btn-tertiary);
  border-radius: 0.3rem;
  font-size: 0.68rem;
  color: var(--text);
}

.page-cup28-calc .calendar-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.45rem;
  font-weight: 600;
  transition: transform 0.15s;
  font-size: 0.72rem;
}

.page-cup28-calc .calendar-day:not(.empty):hover {
  transform: scale(1.06);
}

.page-cup28-calc .calendar-day.empty {
  background: transparent;
}

.page-cup28-calc .calendar-day.menstrual {
  background: #fb7299;
  color: #fff;
}

.page-cup28-calc .calendar-day.golden {
  background: #f59e0b;
  color: #fff;
}

.page-cup28-calc .calendar-day.effective {
  background: #10b981;
  color: #fff;
}

.page-cup28-calc .calendar-day.maintain {
  background: #6366f1;
  color: #fff;
}

.page-cup28-calc .calendar-day.today {
  box-shadow: 0 0 0 3px var(--contrast);
}

.page-cup28-calc .phase-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
  margin-top: 1.15rem;
}

.page-cup28-calc .phase-card {
  padding: 0.95rem 0.9rem;
  border-radius: 0.65rem;
  border-left: 4px solid;
}

.page-cup28-calc .phase-card-title {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 0.45rem;
  color: var(--text);
}

.page-cup28-calc .phase-card-dates {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 0.65rem;
}

.page-cup28-calc .phase-card-desc {
  font-size: 0.88rem;
  line-height: 1.55;
  margin-bottom: 0.65rem;
  color: var(--text-muted);
}

.page-cup28-calc .phase-card-tips {
  margin-top: 0.5rem;
  font-size: 0.88rem;
  line-height: 1.55;
  color: var(--text);
  white-space: pre-line;
}

.page-cup28-calc .phase-card-tips strong {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--text);
}

.page-cup28-calc .phase-menstrual {
  background: #ffe4e6;
  border-color: #fb7299;
}

.page-cup28-calc .phase-golden {
  background: #fef3c7;
  border-color: #f59e0b;
}

.page-cup28-calc .phase-effective {
  background: #d1fae5;
  border-color: #10b981;
}

.page-cup28-calc .phase-maintain {
  background: #e0e7ff;
  border-color: #6366f1;
}

.page-cup28-calc .warning-box {
  background: #fffbeb;
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-left: 4px solid #d97706;
  padding: 1.15rem 1rem 1.25rem;
  border-radius: 0.85rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}

.page-cup28-calc .warning-box h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: #92400e;
  margin-bottom: 0.65rem;
}

.page-cup28-calc .warning-box p {
  font-size: 0.9rem;
  color: #78350f;
  line-height: 1.55;
  margin: 0;
}

.page-cup28-calc .info-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--btn-primary);
  padding: 1.15rem 1rem 1.35rem;
  border-radius: 0.85rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}

.page-cup28-calc .info-box h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--btn-primary);
  margin-bottom: 0.75rem;
}

.page-cup28-calc .info-box ul {
  margin-left: 1.15rem;
  font-size: 0.9rem;
}

.page-cup28-calc .info-box li {
  margin: 0.45rem 0;
  color: var(--text-muted);
  line-height: 1.55;
}

.page-cup28-calc .cup28-video-wrap {
  position: relative;
  width: 100%;
  max-width: 640px;
  margin: 1.15rem auto 0;
  aspect-ratio: 16 / 9;
  border-radius: 0.65rem;
  overflow: hidden;
  border: 1px solid var(--border);
  background: #000;
}

.page-cup28-calc .cup28-video-frame {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.page-cup28-calc .cup28-related {
  max-width: 900px;
  margin: 0 auto 1.5rem;
}

.page-cup28-calc .cup28-related__title {
  font-size: 1.25rem;
  font-weight: 700;
  text-align: center;
  color: var(--btn-primary);
  margin-bottom: 0.5rem;
}

.page-cup28-calc .cup28-related__lead {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.15rem;
  line-height: 1.5;
}

.page-cup28-calc .cup28-related-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

.page-cup28-calc .cup28-related-card {
  display: block;
  text-decoration: none;
  color: inherit;
  background: var(--brand-light);
  border: 1px solid var(--border);
  border-radius: 0.65rem;
  padding: 0.9rem 0.85rem;
  transition: box-shadow 0.2s, border-color 0.2s;
}

.page-cup28-calc .cup28-related-card:hover {
  border-color: var(--border-hover);
  box-shadow: var(--shadow-hover);
}

.page-cup28-calc .cup28-related-card__head {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.page-cup28-calc .cup28-related-card__icon {
  font-size: 1.35rem;
  line-height: 1;
}

.page-cup28-calc .cup28-related-card__title {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--btn-primary);
}

.page-cup28-calc .cup28-related-card__title img {
  height: 1.1rem;
  width: auto;
  vertical-align: -0.15em;
  margin-right: 0.25rem;
}

.page-cup28-calc .cup28-related-card__desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  padding-left: 1.85rem;
}

.page-cup28-calc .cup28-back-wrap {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 2rem;
}

.page-cup28-calc .cup28-back-all {
  display: inline-block;
  max-width: 100%;
  padding: 0.65rem 1.25rem;
  background: var(--btn-primary);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  text-decoration: none;
  border-radius: 0.55rem;
  transition: background-color 0.2s;
}

.page-cup28-calc .cup28-back-all:hover {
  background: var(--brand-dark);
  color: #fff;
}

@media (min-width: 480px) {
  .page-cup28-calc .calendar-header {
    font-size: 0.75rem;
    padding: 0.5rem 0.25rem;
  }

  .page-cup28-calc .calendar-day {
    font-size: 0.82rem;
  }
}

@media (min-width: 640px) {
  .page-cup28-calc .input-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.15rem;
  }

  .page-cup28-calc .card {
    padding: 1.35rem 1.25rem 1.5rem;
  }

  .page-cup28-calc .calendar {
    gap: 0.35rem;
  }

  .page-cup28-calc .phase-cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .page-cup28-calc .cup28-related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .page-cup28-calc .cup28-related-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}