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

:root {
  --bg: #1A0A2E;
  --bg-dark: #0D0517;
  --surface: #2D1B4E;
  --surface2: #3A1D5A;
  --primary: #FFD700;
  --primary-glow: rgba(255, 215, 0, 0.35);
  --fg: #F0E6FF;
  --muted: #9B7EC8;
  --border: #4A2D7A;
  --accent: #C0A0FF;
  --success: #4ADE80;
  --error: #F87171;
  --card-back-bg: #1E0A3E;
  --max-w: 480px;
}

html, body {
  height: 100%;
  background: var(--bg-dark);
  color: var(--fg);
  font-family: 'Noto Serif JP', serif;
  overflow: hidden;
}

/* ===== App Shell ===== */
#app {
  position: fixed;
  inset: 0;
  bottom: 64px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* ===== Screens ===== */
.screen {
  display: none;
  flex-direction: column;
  height: 100%;
  background: var(--bg);
  overflow: hidden;
}

.screen.active {
  display: flex;
}

/* ===== Stars Background ===== */
.stars-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(100, 0, 180, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 80%, rgba(0, 50, 150, 0.12) 0%, transparent 60%);
}

.stars-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 10% 15%, rgba(255,215,0,0.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 30% 40%, rgba(192,160,255,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 60% 10%, rgba(255,215,0,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 75% 55%, rgba(192,160,255,0.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 90% 25%, rgba(255,215,0,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 45% 70%, rgba(192,160,255,0.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 15% 85%, rgba(255,215,0,0.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 85% 90%, rgba(192,160,255,0.4) 0%, transparent 100%);
}

/* ===== Home Screen ===== */
.home-content {
  position: relative;
  z-index: 1;
  flex: 1;
  overflow-y: auto;
  padding: 24px 20px 32px;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

.logo-area {
  text-align: center;
  margin-bottom: 32px;
  padding-top: 8px;
}

.logo-star {
  font-size: 40px;
  color: var(--primary);
  margin-bottom: 4px;
  animation: pulse-star 3s ease-in-out infinite;
}

@keyframes pulse-star {
  0%, 100% { text-shadow: 0 0 10px var(--primary-glow); }
  50% { text-shadow: 0 0 24px var(--primary), 0 0 48px var(--primary-glow); }
}

.title-main {
  font-family: 'Noto Serif JP', serif;
  font-size: 28px;
  font-weight: 700;
  color: var(--fg);
  line-height: 1.3;
}

.title-accent {
  font-family: 'Noto Serif JP', serif;
  font-size: 34px;
  font-weight: 900;
  color: var(--primary);
  line-height: 1.3;
  margin-bottom: 8px;
  text-shadow: 0 0 20px var(--primary-glow);
}

.title-sub {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 1.5px;
}

/* ===== Sections ===== */
.input-section,
.quick-themes-section,
.card-count-section {
  margin-bottom: 24px;
}

.section-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

/* ===== Theme Input ===== */
.theme-input {
  width: 100%;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 16px;
  color: var(--fg);
  font-family: 'Noto Serif JP', serif;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.theme-input::placeholder {
  color: var(--border);
}

.theme-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

/* ===== Quick Themes ===== */
.quick-themes {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.quick-theme-btn {
  padding: 8px 14px;
  border-radius: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 13px;
  font-family: 'Noto Serif JP', serif;
  cursor: pointer;
  transition: all 0.15s;
}

.quick-theme-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.quick-theme-btn.active {
  background: var(--surface2);
  border-color: var(--primary);
  color: var(--primary);
  font-weight: 600;
}

/* ===== Card Count ===== */
.card-count-row {
  display: flex;
  gap: 12px;
}

.card-count-btn {
  flex: 1;
  padding: 14px 12px;
  border-radius: 12px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  color: var(--muted);
  font-family: 'Noto Serif JP', serif;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  transition: all 0.15s;
}

.card-count-btn:hover {
  border-color: var(--accent);
}

.card-count-btn.active {
  background: var(--surface2);
  border-color: var(--primary);
}

.count-label {
  font-size: 20px;
  font-weight: 700;
  color: var(--muted);
}

.card-count-btn.active .count-label {
  color: var(--primary);
}

.count-desc {
  font-size: 11px;
  color: var(--border);
}

.card-count-btn.active .count-desc {
  color: var(--accent);
}

/* ===== Start Button ===== */
.start-btn {
  width: 100%;
  padding: 18px;
  border-radius: 16px;
  background: var(--primary);
  border: none;
  color: var(--bg);
  font-size: 18px;
  font-weight: 700;
  font-family: 'Noto Serif JP', serif;
  letter-spacing: 1px;
  cursor: pointer;
  transition: all 0.15s;
  box-shadow: 0 4px 24px var(--primary-glow);
  margin-bottom: 24px;
}

.start-btn:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 32px var(--primary-glow);
}

.start-btn:active:not(:disabled) {
  transform: scale(0.97);
}

.start-btn:disabled {
  background: var(--surface2);
  color: var(--border);
  box-shadow: none;
  cursor: not-allowed;
}

/* ===== History Preview ===== */
.history-preview {
  margin-top: 8px;
}

.history-preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.text-btn {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 13px;
  cursor: pointer;
  font-family: 'Noto Serif JP', serif;
}

.text-btn:hover {
  color: var(--primary);
}

.history-mini-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  margin-bottom: 8px;
  cursor: pointer;
  transition: border-color 0.15s;
}

.history-mini-card:hover {
  border-color: var(--accent);
}

.history-mini-theme {
  font-size: 14px;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 4px;
}

.history-mini-date {
  font-size: 11px;
  color: var(--muted);
}

/* ===== Screen Header ===== */
.screen-header {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  border-bottom: 0.5px solid var(--border);
  flex-shrink: 0;
  background: var(--bg);
}

.back-btn {
  background: none;
  border: none;
  color: var(--accent);
  font-size: 15px;
  cursor: pointer;
  font-family: 'Noto Serif JP', serif;
  width: 80px;
  text-align: left;
  transition: color 0.15s;
}

.back-btn:hover {
  color: var(--primary);
}

.header-center {
  flex: 1;
  text-align: center;
}

.header-theme {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
}

.header-progress {
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}

.header-title {
  flex: 1;
  text-align: center;
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
}

.danger-text-btn {
  background: none;
  border: none;
  color: var(--error);
  font-size: 13px;
  cursor: pointer;
  font-family: 'Noto Serif JP', serif;
  width: 80px;
  text-align: right;
}

/* ===== Prompt Bar ===== */
.prompt-bar {
  background: var(--surface);
  border-bottom: 0.5px solid var(--border);
  padding: 14px 20px;
  text-align: center;
  font-size: 16px;
  font-weight: 600;
  color: var(--fg);
  letter-spacing: 0.5px;
  flex-shrink: 0;
}

/* ===== Card Deck ===== */
.deck-container {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
}

.card-deck {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  max-width: var(--max-w);
  margin: 0 auto;
}

/* ===== Tarot Card Back ===== */
.tarot-card-back {
  width: calc((min(100vw, 480px) - 80px) / 3);
  aspect-ratio: 0.625;
  border-radius: 8px;
  background: var(--card-back-bg);
  border: 2px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s;
  position: relative;
  overflow: hidden;
}

.tarot-card-back::before {
  content: '';
  position: absolute;
  inset: 6px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--surface);
}

.tarot-card-back:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(192, 160, 255, 0.2);
}

.tarot-card-back.selected {
  border-color: var(--primary);
  border-width: 3px;
  box-shadow: 0 0 16px var(--primary-glow);
}

.card-back-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.card-back-star {
  font-size: 22px;
  color: var(--primary);
}

.card-back-jojo {
  font-size: 11px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 2px;
}

.card-back-tarot {
  font-size: 8px;
  color: var(--muted);
  letter-spacing: 3px;
}

/* ===== Result Screen ===== */
.result-content {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

.result-theme-area {
  text-align: center;
  margin-bottom: 24px;
}

.result-theme-label {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
}

.result-theme-text {
  font-size: 24px;
  font-weight: 700;
  color: var(--fg);
}

/* ===== Result Cards ===== */
.result-cards-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-bottom: 24px;
}

.result-card-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.result-position-label {
  font-size: 12px;
  color: var(--muted);
  font-weight: 600;
}

/* ===== Tarot Card Front ===== */
.tarot-card-front {
  border-radius: 10px;
  background: var(--bg);
  border: 2px solid;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(255, 215, 0, 0.15);
  display: flex;
  flex-direction: column;
  transition: transform 0.3s;
}

.tarot-card-front.reversed {
  transform: rotate(180deg);
}

.card-front-header {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
}

.card-number {
  font-size: 9px;
  color: var(--muted);
  font-weight: 700;
}

.card-tarot-name {
  font-size: 10px;
  color: var(--fg);
  font-weight: 700;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-image-container {
  flex: 1;
  background: var(--bg-dark);
  position: relative;
  overflow: hidden;
}

.card-image-container img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.card-image-fallback {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  background: var(--bg-dark);
}

.card-image-fallback .fallback-star {
  font-size: 36px;
}

.card-image-fallback .fallback-name {
  font-size: 12px;
  font-weight: 700;
  text-align: center;
  line-height: 1.4;
}

.card-front-footer {
  padding: 4px 8px;
}

.card-stand-name {
  font-size: 9px;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.card-user-name {
  font-size: 8px;
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.position-tag {
  font-size: 11px;
  font-weight: 600;
  padding: 2px 10px;
  border-radius: 10px;
}

.position-tag.upright {
  background: #1E4A2E;
  color: var(--success);
}

.position-tag.reversed {
  background: #4A1E1E;
  color: var(--error);
}

/* ===== Card Details ===== */
.result-card-details {
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.card-detail-item {
  background: var(--surface);
  border-radius: 10px;
  padding: 14px;
  border-left: 3px solid;
}

.card-detail-title {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 6px;
}

.card-detail-meaning {
  font-size: 13px;
  color: var(--accent);
  line-height: 1.6;
}

/* ===== Reading ===== */
.result-reading {
  background: var(--surface);
  border-radius: 14px;
  padding: 20px;
  margin-bottom: 20px;
  border: 1px solid var(--border);
}

.reading-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  text-align: center;
  margin-bottom: 14px;
  letter-spacing: 2px;
  text-shadow: 0 0 12px var(--primary-glow);
}

.reading-text {
  font-size: 14px;
  color: var(--fg);
  line-height: 1.8;
  white-space: pre-wrap;
}

/* ===== History Screen ===== */
.history-content {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  max-width: var(--max-w);
  margin: 0 auto;
  width: 100%;
}

.history-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  gap: 12px;
  padding-bottom: 60px;
}

.history-empty-icon {
  font-size: 48px;
  color: var(--border);
}

.history-empty-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--muted);
}

.history-empty-sub {
  font-size: 13px;
  color: var(--border);
  text-align: center;
  max-width: 240px;
  line-height: 1.6;
}

.history-record {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 16px;
  margin-bottom: 12px;
}

.history-record-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.history-record-theme {
  font-size: 16px;
  font-weight: 700;
  color: var(--fg);
}

.history-record-date {
  font-size: 11px;
  color: var(--muted);
  flex-shrink: 0;
  margin-left: 8px;
}

.history-record-cards {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.history-mini-stand {
  flex: 1;
  background: var(--bg);
  border-radius: 8px;
  padding: 8px;
  border: 1px solid;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.history-mini-tarot {
  font-size: 12px;
  font-weight: 700;
}

.history-mini-stand-name {
  font-size: 10px;
  color: var(--muted);
  text-align: center;
}

.history-mini-pos {
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 8px;
}

.history-mini-pos.upright {
  background: #1E4A2E;
  color: var(--success);
}

.history-mini-pos.reversed {
  background: #4A1E1E;
  color: var(--error);
}

.history-record-reading {
  font-size: 12px;
  color: var(--accent);
  line-height: 1.6;
}

/* ===== Tab Bar ===== */
.tab-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: var(--bg);
  border-top: 0.5px solid var(--border);
  display: flex;
  z-index: 100;
}

.tab-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  background: none;
  border: none;
  cursor: pointer;
  transition: all 0.15s;
  padding-top: 8px;
}

.tab-icon {
  font-size: 22px;
  color: var(--muted);
  transition: color 0.15s;
}

.tab-label {
  font-size: 11px;
  color: var(--muted);
  font-family: 'Noto Serif JP', serif;
  transition: color 0.15s;
}

.tab-btn.active .tab-icon,
.tab-btn.active .tab-label {
  color: var(--primary);
}

/* ===== Card Flip Animation ===== */
@keyframes card-flip-in {
  from {
    opacity: 0;
    transform: rotateY(90deg) scale(0.8);
  }
  to {
    opacity: 1;
    transform: rotateY(0deg) scale(1);
  }
}

.tarot-card-front {
  animation: card-flip-in 0.5s ease-out both;
}

/* ===== Fade In ===== */
@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-content > * {
  animation: fade-in-up 0.5s ease-out both;
}

.result-content > *:nth-child(2) { animation-delay: 0.1s; }
.result-content > *:nth-child(3) { animation-delay: 0.2s; }
.result-content > *:nth-child(4) { animation-delay: 0.3s; }
.result-content > *:nth-child(5) { animation-delay: 0.4s; }

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
  width: 4px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 2px;
}

/* ===== Responsive ===== */
@media (min-width: 600px) {
  #app {
    max-width: var(--max-w);
    left: 50%;
    transform: translateX(-50%);
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
  }

  .tab-bar {
    max-width: var(--max-w);
    left: 50%;
    transform: translateX(-50%);
    border-left: 1px solid var(--border);
    border-right: 1px solid var(--border);
  }
}