:root {
  --bg-main: #ffffff;
  --bg-section: #008578;
  --card-surface: #f7faf9;
  --card-border: #dbe7e4;
  --accent: #00b3a4;
  --accent-strong: #006d62;
  --badge-blue: #3b82f6;
  --text-main: #122027;
  --text-muted: #5c6c74;
  --danger: #ff6b6b;
  --success: #2eb97c;
  --warning: #ffb347;
  --radius-lg: 32px;
  --radius-md: 20px;
  --shadow-soft: 0 20px 35px rgba(9, 45, 53, 0.15);
  --shadow-card: 0 12px 24px rgba(2, 64, 71, 0.12);
  font-family: "Poppins", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg-main);
  color: var(--text-main);
  font-family: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

.eyebrow {
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin: 0 0 0.2rem;
}

.hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 1.5rem 1rem;
  background: var(--bg-main);
  border-bottom: 1px solid rgba(16, 90, 85, 0.08);
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.hero-text h1,
.hero-text h2 {
  margin: 0;
  font-size: clamp(1.5rem, 4vw, 2.4rem);
}

.hero-text p {
  margin: 0.35rem 0 0;
}

.hero-guest-hint {
  margin-top: 0.5rem;
  font-weight: 600;
  color: var(--accent-strong);
}

.hero-meta,
.user-pill,
.streak-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.hero-meta {
  flex-direction: column;
  gap: 0.4rem;
}

.user-pill {
  background: var(--card-surface);
  border: 1px solid var(--card-border);
  border-radius: 999px;
  padding: 0.35rem 1rem;
  font-weight: 500;
}

.streak-chip {
  font-family: "Poppins", sans-serif;
  background: linear-gradient(140deg, rgba(255, 255, 255, 0.95), rgba(0, 179, 164, 0.25));
  border-radius: 22px;
  padding: 0.35rem 1.2rem;
  color: var(--accent-strong);
  font-weight: 600;
  border: 1px solid rgba(0, 111, 102, 0.2);
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(10px);
  gap: 0.4rem;
}

.streak-chip::before {
  content: "🔥";
  font-size: 0.9rem;
}

.back-link {
  font-weight: 500;
  color: var(--accent-strong);
}

.page-home .hero {
  background: linear-gradient(120deg, rgba(0, 133, 120, 0.12), rgba(0, 182, 160, 0.08));
}

.home-main {
  padding: 2rem 1.5rem 3rem;
  max-width: 1200px;
  margin: 0 auto;
}

.deck-section {
  background: var(--card-surface);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-soft);
}

.section-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 2rem;
}

.discipline-select {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-weight: 500;
  color: var(--text-muted);
}

.discipline-select select {
  border-radius: 999px;
  border: 1px solid var(--card-border);
  padding: 0.5rem 1.25rem;
  font-size: 1rem;
  background: #fff;
}

.header-controls {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  flex-wrap: wrap;
}

.mode-select {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-weight: 500;
  color: var(--text-muted);
}

.mode-select select {
  border-radius: 999px;
  border: 1px solid var(--card-border);
  padding: 0.5rem 1.25rem;
  font-size: 1rem;
  background: #fff;
  width: 170px;
  max-width: 170px;
}

.mode-select select:disabled {
  background: #f2f5f4;
  color: var(--text-muted);
  cursor: not-allowed;
}

.mode-hint {
  font-size: 0.8rem;
  line-height: 1.25;
  color: var(--text-muted);
  margin-top: 0.15rem;
  max-width: 170px;
  display: block;
}

.deck-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.deck-children {
  margin-left: 1.75rem;
  padding-left: 1.25rem;
  border-left: 2px dashed rgba(0, 0, 0, 0.05);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.deck-card {
  background: var(--bg-section);
  color: #fff;
  border-radius: 12px;
  padding: 0.7rem 1rem 0.7rem 1rem;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 1.2rem;
  min-height: 56px;
  padding-right: 4.4rem; /* espaço extra para botão/ícone */
  position: relative;
}

.deck-card.has-children {
  cursor: pointer;
  padding-right: 2.6rem;
}

.deck-card.has-children::after {
  content: "";
  position: absolute;
  top: 1.2rem;
  right: calc(1.2rem + 96px + 0.5rem);
  width: 10px;
  height: 10px;
  border-right: 3px solid rgba(255, 255, 255, 0.9);
  border-bottom: 3px solid rgba(255, 255, 255, 0.9);
  transform: rotate(45deg);
  transition: transform 0.2s ease;
}

.deck-card.has-children[data-expanded="true"]::after {
  transform: rotate(-135deg);
}

.deck-card__text {
  flex: 1;
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 0.7rem;
  min-width: 0;
}

.deck-card .deck-title {
  margin: 0;
  font-size: 1.1rem;
  text-transform: uppercase;
}

.deck-card .deck-path {
  margin: 0;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  opacity: 0.75;
}

.deck-stats {
  display: flex;
  gap: 0.5rem;
  flex-wrap: nowrap;
  font-size: 0.9rem;
  align-items: center;
}

.deck-card__text {
  width: 100%;
}

.deck-stats .stat {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: rgba(255,255,255,0.06);
  padding: 0.25rem 0.6rem;
  border-radius: 12px;
  font-weight: 600;
}

.deck-stats .stat-letter {
  display: inline-block;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(255,255,255,0.12);
  color: #fff;
  text-align: center;
  line-height: 22px;
  font-size: 0.85rem;
}

/* Colored badges for Novos / Aprendendo / Revisar */
.deck-stats .stat:nth-child(1) .stat-letter { background: var(--badge-blue); }
.deck-stats .stat:nth-child(2) .stat-letter { background: var(--warning); color: rgba(0,0,0,0.9); }
.deck-stats .stat:nth-child(3) .stat-letter { background: var(--success); }

/* Legend above the list */
.stats-legend {
  margin: 0 0 0.75rem 0;
  font-weight: 700;
  color: var(--text-main);
  font-size: 0.95rem;
}

/* Legend table-style */
.legend-table {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
  overflow-x: auto;
  padding: 0.25rem 0;
}
.legend-cell {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(0,0,0,0.03);
  padding: 0.35rem 0.6rem;
  border-radius: 10px;
  font-weight: 600;
  color: var(--text-muted);
}
.legend-dot {
  display: inline-flex;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 700;
  font-size: 0.85rem;
}
.legend-dot.n { background: var(--badge-blue); }
.legend-dot.a { background: var(--warning); color: rgba(0,0,0,0.9); }
.legend-dot.r { background: var(--success); }
.legend-label { color: var(--text-main); font-weight: 700; font-size: 0.95rem; }

.deck-stats .stat-count {
  font-weight: 700;
  font-size: 0.95rem;
}

.deck-card .pill-button {
  background: #fff;
  color: var(--accent-strong);
  flex: 0 0 auto;
  min-width: 96px;
  position: absolute;
  right: 1.2rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
}

.pill-button {
  border: none;
  border-radius: 12px;
  padding: 0.6rem 1.4rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.pill-button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-card);
}

.pill-button.primary {
  background: var(--accent);
  color: #fff;
}

/* For absolute-positioned study buttons inside deck cards keep vertical centering
   and apply a small upward move on hover without removing the -50% translate. */
.deck-card .pill-button:hover {
  transform: translateY(calc(-50% - 4px));
}

.pill-button.small {
  padding: 0.35rem 0.9rem;
  font-size: 0.85rem;
}

.empty-state {
  text-align: center;
  margin-top: 1.5rem;
  color: var(--text-muted);
}

/* Study */
.page-study {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: #f4f8f7;
}

.hero-study {
  align-items: center;
  background: linear-gradient(120deg, rgba(0, 133, 120, 0.2), rgba(255, 255, 255, 0));
}

.study-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  padding: 2rem 1.5rem 3rem;
  max-width: 720px;
  margin: 0 auto;
  width: 100%;
}

.card-column {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
  width: 100%;
}

.card-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.study-card {
  width: min(100%, 420px);
  min-width: 400px;
  min-height: 460px;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  justify-content: center;
  text-align: center;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  touch-action: pan-y;
}

.study-card.locked {
  opacity: 0.95;
  cursor: default;
}

.study-card.hidden {
  display: none;
}

.study-card.dragging {
  box-shadow: 0 30px 50px rgba(0, 0, 0, 0.2);
}

.card-face {
  font-size: 1.1rem;
  line-height: 1.5;
  text-align: center;
}

.card-answer {
  margin-top: 0.8rem;
  font-weight: 600;
  color: var(--accent-strong);
}

.cloze-hidden {
  display: inline-block;
  padding: 0 0.2rem;
  border-bottom: 2px dotted var(--text-muted);
}

.card-face.back {
  border-top: 1px solid var(--card-border);
  padding-top: 1.2rem;
}

.card-answer {
  margin-top: 0.75rem;
  font-weight: 600;
  color: var(--accent-strong);
}

.cloze-hidden {
  border-bottom: 2px dotted rgba(18, 32, 39, 0.4);
  padding: 0 0.3rem;
}

.card-image {
  max-height: 180px;
  display: flex;
  justify-content: center;
}

.swipe-label {
  position: absolute;
  top: 20px;
  font-weight: 700;
  font-size: 1.2rem;
  padding: 0.4rem 0.8rem;
  border-radius: 12px;
  color: #fff;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.swipe-left {
  left: 20px;
  background: rgba(255, 107, 107, 0.85);
}

.swipe-right {
  right: 20px;
  background: rgba(46, 185, 124, 0.85);
}

.swipe-label.visible {
  opacity: 1;
}

.card-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
}

.primary-action {
  width: 100%;
  max-width: 360px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 0.9rem;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
}

.answer-actions {
  display: none;
  gap: 1rem;
  justify-content: center;
  width: 100%;
}

#editCurrentCardLink {
  width: 100%;
  max-width: 360px;
  text-align: center;
}

.action-btn {
  flex: 1;
  max-width: 200px;
  border-radius: 20px;
  border: none;
  background: #fff;
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1rem;
  font-size: 1rem;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.action-btn span {
  font-size: 1.2rem;
}

.action-btn small {
  font-size: 0.95rem;
  color: inherit;
}

.action-btn.danger {
  background: linear-gradient(135deg, #ffe0e0, #ffd1d1);
  color: #b42323;
}

.action-btn.success {
  background: linear-gradient(135deg, #e0f9f0, #d3f3e7);
  color: #137a4b;
}

.action-btn:active {
  transform: translateY(1px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.favorite-btn {
  border: 1px solid var(--card-border);
  border-radius: 999px;
  padding: 0.4rem 1.2rem;
  background: #fff;
  display: inline-flex;
  gap: 0.4rem;
  align-items: center;
  font-weight: 500;
}

.favorite-btn .icon {
  font-size: 1rem;
}

.favorite-btn[aria-pressed="true"] {
  background: rgba(254, 226, 226, 0.7);
  color: var(--danger);
}

.ordering-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.ordering-slots {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.5rem;
}

.ordering-slot {
  min-height: 48px;
  border: 2px dashed rgba(18, 32, 39, 0.2);
  border-radius: 14px;
  display: flex;
  align-items: center;
  padding: 0.5rem 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  user-select: none;
  touch-action: manipulation;
}

.ordering-slot:empty::after {
  content: attr(data-label);
  opacity: 0.6;
}

.ordering-slot > .ordering-chip {
  width: 100%;
}

.ordering-pool {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.ordering-chip-wrapper {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.ordering-chip {
  border: none;
  border-radius: 999px;
  padding: 0.35rem 0.9rem;
  background: #e8f8f4;
  color: var(--accent-strong);
  font-weight: 600;
  cursor: grab;
  user-select: none;
  touch-action: manipulation;
}

.ordering-chip:active {
  cursor: grabbing;
}

.ordering-container,
.ordering-container p,
.ordering-chip-wrapper,
.ordering-pool,
.image-completion-container,
.image-completion-container p,
.image-completion-board,
.image-slot,
.image-completion-container .ordering-slot,
.image-completion-container .ordering-chip {
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  touch-action: manipulation;
}

.ordering-feedback {
  font-weight: 600;
}

.ordering-feedback.correct {
  color: var(--success);
}

.ordering-feedback.incomplete {
  color: var(--warning);
}

.ordering-feedback.incorrect {
  color: var(--danger);
}

.ordering-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  width: 100%;
  max-width: 360px;
}

.ordering-result-box {
  border: 1px solid var(--card-border);
  border-radius: 14px;
  padding: 0.75rem 1rem;
  background: #f6f8f7;
}

.ordering-result-box[data-state="success"] {
  border-color: var(--success);
  background: #e6f7ef;
}

.ordering-result-box[data-state="error"] {
  border-color: var(--danger);
  background: #fff1f1;
}

.ordering-result-box[data-state="incomplete"] {
  border-color: var(--warning);
  background: #fff7e0;
}

.linking-board {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  width: 100%;
}

.linking-column {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.options-board {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  width: 100%;
}

.option-item {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 0.75rem 0.9rem;
  background: #fff;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  touch-action: manipulation;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, transform 0.1s ease;
}

.option-item.is-selected {
  border-color: var(--accent);
  box-shadow: 0 10px 20px rgba(0, 179, 164, 0.15);
  transform: translateY(-1px);
}

.linking-item {
  border: 1px solid var(--card-border);
  border-radius: 999px;
  padding: 0.45rem 0.75rem;
  background: #fff;
  color: var(--text-main);
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
  touch-action: manipulation;
  transition: transform 0.1s ease, box-shadow 0.15s ease, border-color 0.15s ease;
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.05);
}

.linking-item.is-selected {
  border-color: var(--accent);
  box-shadow: 0 10px 20px rgba(0, 179, 164, 0.18);
  transform: translateY(-1px);
}

.linking-item.is-linked {
  color: var(--text-main);
}

.linking-legend {
  margin: 0.35rem 0;
  text-align: center;
  color: var(--text-muted);
  font-weight: 600;
}

.linking-review {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.4rem;
}

.linking-review-title {
  margin: 0.25rem 0;
  font-weight: 700;
  color: var(--text-muted);
}

.link-pill {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 0.55rem 0.75rem;
  font-weight: 700;
  color: var(--text-main);
  background: #fff;
}

.link-pill.user-wrong {
  border-color: var(--danger);
  color: var(--danger);
  background: #fff4f4;
}

.link-pill.correct {
  border-color: var(--accent);
  color: var(--accent-strong);
  background: #e8f8f4;
}

.ordering-review {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.ordering-review-title {
  margin: 0 0 0.25rem;
  font-weight: 700;
  color: var(--text-muted);
}

.ordering-review-list {
  margin: 0;
  padding-left: 1rem;
  background: #fff;
  border-radius: 12px;
  border: 1px solid var(--card-border);
}

.ordering-review-list li {
  padding: 0.35rem 0.5rem;
}

.ordering-review-list li.is-wrong {
  color: var(--danger);
  font-weight: 700;
}

.ordering-review-list.correct li {
  color: var(--success);
  font-weight: 700;
}

.ordering-compare-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.35rem;
}

.ordering-compare {
  padding: 0.45rem 0.6rem;
  border-radius: 10px;
  border: 1px solid var(--card-border);
  background: #fff;
  font-weight: 600;
}

.ordering-compare.user.is-wrong {
  border-color: var(--danger);
  color: var(--danger);
  background: #fff4f4;
}

.ordering-compare.correct {
  border-color: var(--success);
  color: var(--success);
  background: #e9f8f0;
}
.image-completion-container {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  margin-top: 1rem;
  margin-bottom: 1rem;
  padding: 0.25rem 0.5rem;
}

.image-completion-prompt {
  text-align: center;
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.image-completion-board {
  position: relative;
  width: min(90%, 360px);
  max-width: 360px;
  aspect-ratio: 1;
  background: #fff;
  border: 2px solid var(--card-border);
  border-radius: 16px;
  box-shadow: var(--shadow-card);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: visible;
  margin-top: 0.6rem;
  margin-bottom: 0.6rem;
}

.image-completion-center {
  width: 70%;
  height: 70%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.image-completion-center img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.image-slot {
  position: absolute;
  min-width: 96px;
  max-width: 120px;
  min-height: 44px;
  padding: 0.25rem 0.5rem;
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
  word-break: break-word;
  text-align: center;
  line-height: 1.2;
}

.image-slot.pos-top {
  top: -6%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.image-slot.pos-right {
  right: -2%;
  top: 50%;
  transform: translate(25%, -50%);
}

.image-slot.pos-bottom {
  bottom: -2%;
  left: 50%;
  transform: translate(-50%, 25%);
}

.image-slot.pos-left {
  left: -2%;
  top: 50%;
  transform: translate(-25%, -50%);
}

.interval-preview,
.card-state {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.preview-panel {
  background: var(--card-surface);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
  min-height: 200px;
}

.preview-panel h2 {
  margin-top: 0;
}

.card-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 1rem;
}

.card-tags-row[hidden] {
  display: none;
}

.tag-pill {
  padding: 0.3rem 0.9rem;
  background: rgba(18, 32, 39, 0.1);
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-strong);
}

.empty-state {
  font-weight: 500;
}

/* Editor */
.page-editor {
  background: #f4f8f7;
  min-height: 100vh;
}

.editor-main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.warning-panel {
  background: #fff7dc;
  border-radius: var(--radius-md);
  padding: 1.5rem;
  border: 1px solid rgba(255, 179, 71, 0.4);
}

.editor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.panel {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow-card);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.toolbar {
  display: flex;
  gap: 0.5rem;
}

.toolbar-btn {
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 0.4rem 0.8rem;
  background: var(--card-surface);
  cursor: pointer;
}

.card-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.5rem;
}

.card-form textarea,
.card-form input,
.card-form select {
  width: 100%;
  border-radius: 18px;
  border: 1px solid var(--card-border);
  padding: 0.75rem 1rem;
  font-family: inherit;
}

.tags-fieldset {
  border-radius: var(--radius-md);
  border: 1px dashed var(--card-border);
  padding: 1rem;
}

.tag-levels {
  display: grid;
  gap: 0.75rem;
}

.tag-level input {
  border-radius: 12px;
}

.image-actions {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.image-actions-buttons {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.ordering-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.linking-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.linking-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 0.5rem;
}

.linking-row input {
  border-radius: 12px;
}

.options-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.option-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.5rem;
  align-items: center;
}

.option-row input[type="text"] {
  border-radius: 12px;
}

.option-row label {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-weight: 600;
  color: var(--text-muted);
  margin: 0;
}

.ordering-item-row {
  display: flex;
  gap: 0.5rem;
}

.ordering-item-row input {
  flex: 1;
  border-radius: 12px;
}

.cards-list {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.cards-list li {
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  padding: 1rem;
  background: #fff;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-status {
  margin-top: 0.5rem;
  font-weight: 600;
  color: var(--text-muted);
}
.form-status.success { color: var(--success); }
.form-status.error { color: var(--danger); }
.form-status.info { color: var(--text-main); }

/* Arrange by tag panel styles */
.arrange-container {
  max-height: 420px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.25rem;
  border: 1px dashed rgba(0,0,0,0.06);
  border-radius: 12px;
  background: #fff;
}
.arrange-preview {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem;
  border-radius: 10px;
  background: linear-gradient(90deg, rgba(0,0,0,0.02), rgba(0,0,0,0.01));
  cursor: grab;
  user-select: none;
  transition: box-shadow 0.2s ease, background 0.2s ease, transform 0.2s ease, margin 0.15s ease, padding 0.15s ease, height 0.15s ease;
}
.arrange-preview:focus-visible {
  outline: 2px solid rgba(0, 179, 164, 0.5);
}
.arrange-preview.is-selected {
  background: rgba(0, 179, 164, 0.08);
  box-shadow: 0 12px 28px rgba(0, 179, 164, 0.2);
}
.arrange-preview.dragging {
  opacity: 0;
  margin: 0 !important;
  padding: 0 !important;
  border: 0;
  height: 0 !important;
  box-shadow: none;
  cursor: grabbing;
}
.arrange-preview .preview-title {
  font-weight: 700;
  font-size: 0.95rem;
}
.arrange-preview .preview-meta {
  color: var(--text-muted);
  font-size: 0.85rem;
}
.arrange-placeholder {
  border: 2px dashed var(--accent);
  border-radius: 10px;
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-strong);
  font-weight: 600;
  letter-spacing: 0.02em;
  background: rgba(0, 179, 164, 0.08);
  animation: arrangePulse 1.2s ease-in-out infinite;
}

@keyframes arrangePulse {
  0% { opacity: 0.4; }
  50% { opacity: 1; }
  100% { opacity: 0.4; }
}

.cards-list button {
  align-self: flex-start;
}

.image-completion-config {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  padding: 1rem;
  border: 1px dashed var(--card-border);
  border-radius: var(--radius-md);
  background: #f9fbfa;
}

.image-completion-config[hidden] {
  display: none !important;
}

.image-sides-grid {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.image-side-row {
  display: grid;
  grid-template-columns: auto 90px 1fr auto;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  background: #fff;
}

.image-side-row input[type="text"] {
  flex: 1;
  border-radius: 10px;
  border: 1px solid var(--card-border);
  padding: 0.35rem 0.6rem;
}

.side-label {
  min-width: 70px;
  font-weight: 600;
  color: var(--text-muted);
}

.image-extras {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.image-extra-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.image-extra-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem;
}

.image-extra-row input {
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 0.4rem 0.6rem;
}

@media (max-width: 640px) {
  .deck-card-mb {
    margin-bottom: 0.85rem;
  }

  .deck-card-mb__header {
    padding: 0.8rem 0.85rem;
  }

  .deck-row-mb {
    padding: 0.55rem 0.75rem;
    grid-template-columns: 1fr auto auto;
  }

  .deck-row-mb__stats {
    gap: 0.2rem;
  }

  .deck-row-mb__action {
    font-size: 0.9rem;
  }
  .hero {
    flex-direction: column;
    align-items: flex-start;
  }

  .deck-card {
    padding: 0.55rem 0.65rem;
    gap: 0.4rem;
    border-radius: 12px;
    min-height: auto;
    position: relative;
    flex-direction: row;
    align-items: center;
  }

  .deck-card__text {
    flex-direction: column;
    gap: 0.15rem;
    align-items: flex-start;
    text-align: left;
  }

  .deck-card .pill-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.55rem 0.75rem;
    width: auto;
    height: auto;
    min-width: 0;
    border-radius: 10px;
    position: static;
    margin-left: auto;
    font-size: 0.9rem;
  }

  .deck-card.has-children::after {
    right: 1.2rem;
    top: 1rem;
  }

  .study-card {
    width: 100%;
  }

  .answer-actions {
    flex-direction: column;
    align-items: center;
  }

  .image-completion-board {
    max-width: 280px;
    width: 90%;
  }

  .image-slot {
    min-width: 80px;
    max-width: 100px;
    padding: 0.2rem 0.45rem;
    font-size: 0.9rem;
    line-height: 1.2;
  }

  .image-slot.pos-right {
    right: -6%;
    transform: translate(30%, -50%);
  }

  .image-slot.pos-left {
    left: -6%;
    transform: translate(-30%, -50%);
  }

  .image-slot.pos-top {
    top: -8%;
    transform: translate(-50%, -30%);
  }

  .image-slot.pos-bottom {
    bottom: -8%;
    transform: translate(-50%, 30%);
  }

  .deck-section {
    padding: 0.9rem;
    gap: 0.75rem;
  }

  .legend-table {
    gap: 0.6rem;
    font-size: 0.92rem;
    padding: 0.1rem 0;
  }

  .deck-card {
    padding: 0.6rem 0.75rem;
    gap: 0.4rem;
    border-radius: 13px;
    min-height: auto;
    position: relative;
    flex-direction: row;
    align-items: center;
  }

  .deck-card .deck-title {
    font-size: 0.98rem;
    letter-spacing: 0.01em;
    margin-bottom: 0;
  }

  .deck-card .deck-path {
    font-size: 0.75rem;
    letter-spacing: 0.02em;
    opacity: 0.7;
  }

  .deck-children {
    margin-left: 1rem;
    padding-left: 0.75rem;
    gap: 0.75rem;
    border-left: 1px dashed rgba(0, 0, 0, 0.05);
  }

  .deck-list {
    gap: 0.8rem;
  }

  .deck-stats {
    gap: 0.25rem;
    font-size: 0.78rem;
    margin-top: 0;
  }

  .deck-stats .stat {
    padding: 0.2rem 0.45rem;
    border-radius: 10px;
  }

  .deck-stats .stat-letter {
    width: 20px;
    height: 20px;
    line-height: 20px;
    font-size: 0.8rem;
  }

  .deck-card .pill-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.55rem 0.75rem;
    width: auto;
    height: auto;
    min-width: 0;
    border-radius: 12px;
    position: static;
    margin-left: auto;
    font-size: 0.9rem;
  }

  .deck-card__text {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
  }

  .deck-card.has-children::after {
    right: 0.35rem;
    top: 0.35rem;
  }
}
.deck-card-mb {
  background: #fff;
  border-radius: 18px;
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  margin-bottom: 1rem;
}

.deck-card-mb__header {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.85rem 1rem;
  background: var(--bg-section);
  color: #fff;
}

.deck-card-mb__icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.18);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
}

.deck-card-mb__title-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.deck-card-mb__title {
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.01em;
}

.deck-card-mb__subtitle {
  font-size: 0.82rem;
  opacity: 0.9;
}

.deck-row-mb__stats-header .deck-row-mb__stat {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
}

.deck-row-mb__stats-header .deck-row-mb__stat-letter {
  color: #fff;
  background: rgba(255, 255, 255, 0.25);
}

.deck-row-mb__stats-header .deck-row-mb__stat-num {
  color: #fff;
}

.deck-card-mb__study {
  margin-left: auto;
  background: #fff;
  color: var(--accent-strong);
  border: none;
  border-radius: 999px;
  padding: 0.45rem 0.85rem;
  font-weight: 700;
  cursor: pointer;
}

.deck-card-mb__chevron {
  margin-left: 0.35rem;
  font-size: 1.1rem;
  transform: rotate(0deg);
  transition: transform 0.2s ease;
  font-weight: 700;
}

.deck-card-mb__chevron.expanded {
  transform: rotate(90deg);
}

.deck-card-mb__body {
  background: #fff;
  display: flex;
  flex-direction: column;
}

.deck-card-mb__body.collapsed {
  display: none;
}

.deck-row-mb {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 0.9rem;
  border-bottom: 1px solid #e9efed;
}

.deck-row-mb:last-child {
  border-bottom: none;
}

.deck-row-mb__left {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  flex: 1;
  min-width: 0;
}

.deck-row-mb__title {
  font-weight: 700;
  color: var(--text-main);
  font-size: 0.96rem;
}

.deck-row-mb__content {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.deck-row-mb__stats {
  display: inline-flex;
  gap: 0.25rem;
  font-weight: 700;
  align-items: center;
}

.deck-row-mb__stats-row {
  display: inline-flex;
}

.deck-row-mb__stat {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  border-radius: 10px;
  padding: 0.15rem 0.4rem;
  background: rgba(0, 0, 0, 0.04);
}

.deck-row-mb__stat-letter {
  display: inline-block;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  text-align: center;
  line-height: 18px;
  color: #fff;
  font-size: 0.78rem;
}

.deck-row-mb__stat-num {
  font-size: 0.9rem;
  color: var(--text-main);
}

.deck-row-mb__stat-n .deck-row-mb__stat-letter {
  background: var(--badge-blue);
}

.deck-row-mb__stat-a .deck-row-mb__stat-letter {
  background: var(--warning);
  color: rgba(0, 0, 0, 0.9);
}

.deck-row-mb__stat-r .deck-row-mb__stat-letter {
  background: var(--success);
}

.deck-row-mb__action {
  background: #fff;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  padding: 0.35rem 0.7rem;
  font-weight: 700;
  color: var(--accent-strong);
  cursor: pointer;
}

.deck-row-mb__chevron {
  width: 12px;
  display: inline-flex;
  justify-content: center;
  color: var(--text-muted);
  transform: rotate(0deg);
  transition: transform 0.2s ease;
  font-weight: 700;
}

.deck-row-mb__chevron.expanded {
  transform: rotate(90deg);
}

.deck-row-mb__children {
  padding-left: 1rem;
}