@import url('../design-tokens.css');

.stamp-overview {
  display: grid;
  gap: var(--space-4);
}

.streak-highlight {
  position: relative;
  display: grid;
  gap: var(--space-5);
  padding: var(--space-5);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.18);
  background: linear-gradient(135deg, rgba(95, 225, 214, 0.16), rgba(255, 154, 196, 0.18));
  box-shadow: 0 26px 52px rgba(82, 113, 189, 0.16);
}

.streak-highlight::before,
.streak-highlight::after {
  content: '';
  position: absolute;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.65) 0%, rgba(255, 255, 255, 0) 70%);
  filter: blur(14px);
  z-index: 0;
  opacity: 0.7;
}

.streak-highlight::before {
  top: -160px;
  left: -120px;
}

.streak-highlight::after {
  bottom: -180px;
  right: -120px;
}

.streak-highlight.is-active {
  box-shadow: 0 32px 64px rgba(255, 154, 196, 0.28);
}

.streak-highlight.is-milestone {
  border-color: rgba(255, 192, 203, 0.6);
}

.streak-hero {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.streak-icon {
  width: 84px;
  height: 84px;
  border-radius: 28px;
  display: grid;
  place-items: center;
  font-size: 2.5rem;
  background: rgba(255, 255, 255, 0.92);
  border: 2px solid rgba(255, 154, 196, 0.32);
  box-shadow: 0 18px 36px rgba(255, 154, 196, 0.25);
}

.streak-text {
  display: grid;
  gap: var(--space-2);
}

.streak-label {
  margin: 0;
  font-size: var(--font-size-xs);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(32, 36, 54, 0.68);
}

.streak-count {
  margin: 0;
  font-size: clamp(2.2rem, 5vw, 3rem);
  font-weight: var(--font-weight-extrabold);
  color: var(--color-text-primary);
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
}

.streak-unit {
  font-size: var(--font-size-sm);
  color: rgba(32, 36, 54, 0.7);
}

.streak-message {
  margin: 0;
  font-size: var(--font-size-sm);
  color: rgba(32, 36, 54, 0.82);
}

.streak-progress {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-2);
}

.streak-progress__label {
  font-size: var(--font-size-xs);
  color: rgba(32, 36, 54, 0.6);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.streak-progress__bar {
  width: 100%;
  height: 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(148, 163, 184, 0.18);
  overflow: hidden;
}

.streak-progress__fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, rgba(95, 225, 214, 1) 0%, rgba(90, 189, 255, 1) 100%);
  transition: width 600ms var(--easing-standard);
}

.streak-progress__meta {
  font-size: var(--font-size-xs);
  color: rgba(32, 36, 54, 0.72);
}

.streak-celebration {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.streak-highlight.is-active .streak-celebration::before,
.streak-highlight.is-active .streak-celebration::after {
  content: '';
  position: absolute;
  width: 220px;
  height: 220px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.35) 0%, rgba(255, 255, 255, 0) 60%);
  opacity: 0;
  animation: streakGlow 2600ms ease-in-out infinite;
}

.streak-highlight.is-active .streak-celebration::before {
  top: -80px;
  left: 10%;
  animation-delay: 0ms;
}

.streak-highlight.is-active .streak-celebration::after {
  bottom: -90px;
  right: 6%;
  animation-delay: 1200ms;
}

.streak-celebration.burst::before,
.streak-celebration.burst::after {
  animation: streakBurst 800ms ease-out forwards;
}

@keyframes streakBurst {
  0% { opacity: 0; transform: scale(0.6); }
  40% { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(1.2); }
}

@keyframes streakGlow {
  0%, 100% { opacity: 0; transform: scale(0.8); }
  40% { opacity: 1; transform: scale(1); }
  80% { opacity: 0; transform: scale(1.1); }
}

@media (max-width: 680px) {
  .streak-hero {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-3);
  }

  .streak-icon {
    width: 68px;
    height: 68px;
    border-radius: 22px;
    font-size: 2rem;
  }

  .streak-text {
    gap: var(--space-1);
  }
}

.calendar-shell {
  display: grid;
  gap: var(--space-4);
}

.calendar-controls {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
}

.calendar-controls button {
  padding: 10px 14px;
  border-radius: var(--radius-md);
  background: rgba(82, 113, 189, 0.14);
  color: var(--color-text-primary);
  font-size: var(--font-size-sm);
  border: none;
}

#current-month-year {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
}


.calendar-stage {
  position: relative;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.9) 0%, rgba(237, 244, 255, 0.98) 100%);
  border-radius: var(--radius-xl);
  padding: var(--space-4);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  width: min(100%, 640px);
  margin: 0 auto;
}

.calendar-stage::before,
.calendar-stage::after {
  content: '';
  position: absolute;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(95, 225, 214, 0.25) 0%, rgba(255, 255, 255, 0) 70%);
  filter: blur(20px);
  z-index: 0;
}

.calendar-stage::before {
  top: -120px;
  left: -90px;
}

.calendar-stage::after {
  bottom: -130px;
  right: -80px;
}

.calendar-grid-wrapper {
  position: relative;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(82, 113, 189, 0.14);
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.45);
  width: 100%;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0;
  width: 100%;
}

.calendar-day-name,
.calendar-day-cell {
  position: relative;
  width: 100%;
  padding-top: 100%; /* 正方形を維持 */
}

.calendar-day-name {
  font-size: var(--font-size-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  background: rgba(237, 244, 255, 0.88);
  display: flex;
  align-items: center;
  justify-content: center;
}

.calendar-day-cell {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  transition: transform var(--duration-fast) var(--easing-standard), box-shadow var(--duration-fast) var(--easing-standard);
  cursor: pointer;
}

.calendar-day-cell::before {
  content: '';
  position: absolute;
  inset: 8px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(82, 113, 189, 0.12);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.45);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--easing-standard);
}

.calendar-day-cell .date-number {
  position: absolute;
  top: var(--space-2);
  left: var(--space-3);
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.calendar-day-cell:hover::before {
  opacity: 1;
}

.calendar-day-cell.stamped::before {
  opacity: 1;
  background: rgba(95, 225, 214, 0.2);
  border-color: rgba(95, 225, 214, 0.35);
}

.calendar-day-cell.today::before {
  opacity: 1;
  background: rgba(86, 195, 255, 0.18);
  border-color: rgba(86, 195, 255, 0.35);
}

.calendar-day-cell.self-training::before {
  background: rgba(255, 154, 196, 0.2);
  border-color: rgba(255, 154, 196, 0.35);
}

.stamp-slot {
  position: absolute;
  inset: 8px;
  display: grid;
  place-items: center;
  pointer-events: none;
  z-index: 1;
}

@keyframes stampIdle {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-2px); }
}

.calendar-day-cell.stamped .stamp-slot {
  animation: stampIdle 5s ease-in-out infinite;
}

.stamp-image {
  width: 86%;
  max-width: 76px;
  transition: transform var(--duration-fast) var(--easing-standard), filter var(--duration-fast) var(--easing-standard);
  filter: drop-shadow(0 10px 12px rgba(82, 113, 189, 0.25));
}

.calendar-day-cell:hover .stamp-image {
  transform: translateY(-4px) scale(1.05);
}

.calendar-day-cell .stamp-celebration {
  position: absolute;
  inset: 0;
  display: none;
  pointer-events: none;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.85) 0%, rgba(255, 255, 255, 0) 65%);
  border-radius: var(--radius-md);
  opacity: 0;
}

.calendar-day-cell.stamped .stamp-celebration {
  display: block;
  animation: stampCelebrate 0.6s ease-out;
}

@keyframes stampCelebrate {
  0% { transform: scale(0.8); opacity: 0; }
  70% { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(1); opacity: 0; }
}

.stamp-actions {
  display: grid;
  gap: var(--space-4);
}

.stamp-keyword-input {
  display: grid;
  gap: var(--space-3);
}

.stamp-keyword-input input {
  border: 1px solid rgba(82, 113, 189, 0.2);
  border-radius: var(--radius-md);
  padding: 14px;
  background: var(--color-surface);
  color: var(--color-text-primary);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.6);
}

.stamp-keyword-input button {
  width: 100%;
}

#stamp-message {
  min-height: 42px;
  border-radius: var(--radius-md);
  display: grid;
  place-items: center;
  font-size: var(--font-size-xs);
  padding: var(--space-3);
}

.stamp-media-card {
  display: grid;
  gap: var(--space-4);
}

.stamp-media-card iframe,
#youtube-player {
  width: 100%;
  min-height: 200px;
  border-radius: var(--radius-lg);
  border: none;
  background: rgba(237, 244, 255, 0.9);
}

.video-actions {
  display: grid;
  gap: var(--space-3);
  text-align: center;
}

.video-actions button {
  width: 100%;
}

.keyword-highlight {
  color: var(--color-accent);
  font-weight: var(--font-weight-semibold);
}

@media (max-width: 420px) {
  .calendar-stage {
    padding: var(--space-3);
  }

  .calendar-day-cell::before {
    inset: 6px;
  }

  .stamp-image {
    max-width: 60px;
    width: 82%;
  }
}

@media (min-width: 768px) {
  .calendar-stage {
    padding: var(--space-5);
  }
}