/* 유치원 학습 놀이터 6세·7세 터치 친화 스타일 */

:root {
  --bg: #fff8ee;
  --bg-soft: #fff2dc;
  --ink: #2b2a4d;
  --ink-soft: #5a587a;
  --primary: #ff8a3d;
  --primary-soft: #ffe1c8;
  --accent: #ff8a3d;
  --card-bg: #ffffff;
  --shadow: 0 6px 18px rgba(64, 50, 30, 0.12);
  --radius: 22px;
  --radius-sm: 14px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Apple SD Gothic Neo', 'Malgun Gothic', 'Noto Sans KR', system-ui, -apple-system, sans-serif;
  font-size: 18px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

#app-root {
  max-width: 1080px;
  margin: 0 auto;
  padding: 16px;
  min-height: 100vh;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* 헤더 */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 12px 8px;
  margin-bottom: 16px;
}

.header-main {
  display: grid;
  gap: 6px;
}

.app-brand {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
}

.app-brand strong {
  font-size: 22px;
  font-weight: 900;
}

.app-brand span {
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 700;
}

.header-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  align-items: center;
  gap: 8px;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  color: var(--ink-soft);
  font-size: 16px;
}

.crumb {
  display: inline-flex;
  align-items: center;
  padding: 4px 8px;
  border-radius: 12px;
}

.home-crumb {
  background: var(--primary-soft);
  color: var(--ink);
  font-weight: 600;
  cursor: pointer;
}

.sticker-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: #fff;
  border: 2px solid var(--primary);
  color: var(--ink);
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 18px;
  font-weight: 700;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease;
}

.sticker-badge.pop {
  animation: pop 0.5s ease;
}

.mini-action {
  background: #fff;
  border: 2px solid #ead7bf;
  color: var(--ink);
  padding: 8px 12px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 800;
  box-shadow: 0 4px 12px rgba(64, 50, 30, 0.08);
}

.mini-action.active {
  background: var(--accent, var(--primary));
  border-color: var(--accent, var(--primary));
  color: #fff;
}

.mini-action.danger {
  border-color: #e6a4a4;
  color: #a14040;
}

.mini-action.root-action {
  border-color: #b9b0e8;
}

.mini-action.root-action.active {
  background: #5b4bb7;
  border-color: #5b4bb7;
  color: #fff;
}

@keyframes pop {
  0% { transform: scale(1); }
  50% { transform: scale(1.18); }
  100% { transform: scale(1); }
}

/* 공통 화면 */
.screen {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 16px;
  padding: 8px 4px 32px;
}

.screen-title {
  font-size: 28px;
  margin: 0;
  text-align: center;
}

.screen-sub {
  margin: 0;
  text-align: center;
  color: var(--ink-soft);
}

/* 홈 - 연령 선택 */
.age-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.age-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 24px 16px;
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transition: transform 0.15s ease;
  min-height: 180px;
}

.age-card:hover { transform: translateY(-3px); }

.age-emoji { font-size: 64px; line-height: 1; }
.age-label { font-size: 24px; font-weight: 700; }
.age-sub { font-size: 15px; color: var(--ink-soft); text-align: center; }

/* 교실 목록 */
.subject-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.subject-card {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: center;
  gap: 16px;
  padding: 20px 22px;
  background: var(--card-bg);
  border-radius: var(--radius);
  border-left: 8px solid var(--accent);
  box-shadow: var(--shadow);
  text-align: left;
  transition: transform 0.15s ease;
}

.subject-card:hover { transform: translateY(-2px); }

.subject-emoji { font-size: 44px; line-height: 1; }
.subject-label { font-size: 22px; font-weight: 700; }
.subject-week { font-size: 15px; color: var(--ink-soft); }

/* 회원가입과 역할 전환 */
.auth-quick-panel,
.profile-switch-panel,
.signup-card,
.teacher-control-panel,
.class-monitor-panel-3d {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
}

.auth-quick-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-top: 8px solid var(--accent, var(--primary));
}

.auth-quick-panel strong {
  display: block;
  font-size: 20px;
}

.auth-quick-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.profile-select {
  border: 2px solid #ead7bf;
  border-radius: 12px;
  padding: 8px 10px;
  color: var(--ink);
  font: inherit;
  font-size: 14px;
}

.auth-message {
  width: 100%;
  margin: 4px 0 0;
  color: #7b4d10;
  font-size: 14px;
  font-weight: 800;
}

.auth-message.center { text-align: center; }

.role-tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.home-return-btn {
  align-self: center;
  background: #fff;
  border: 3px solid var(--primary);
  color: var(--ink);
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-size: 17px;
  font-weight: 900;
  box-shadow: var(--shadow);
}

.role-tab {
  background: #fff;
  border: 2px solid #ead7bf;
  border-radius: var(--radius-sm);
  padding: 14px;
  color: var(--ink);
  font-size: 17px;
  font-weight: 900;
}

.role-tab.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.signup-layout {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.signup-card {
  border-top: 8px solid var(--accent, var(--primary));
}

.signup-card.muted {
  opacity: 0.76;
}

.signup-card h2,
.profile-switch-panel h2,
.profile-switch-panel h3 {
  margin: 0 0 10px;
}

.signup-form {
  display: grid;
  gap: 12px;
}

.signup-form label {
  display: grid;
  gap: 6px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 800;
}

.signup-form input,
.signup-form select,
.teacher-mini-form input,
.teacher-mini-form select {
  width: 100%;
  border: 2px solid #ead7bf;
  border-radius: 12px;
  padding: 10px 12px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}

.profile-switch-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.profile-chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.profile-chip,
.class-chip {
  background: var(--bg-soft);
  border: 2px solid #ead7bf;
  border-radius: 999px;
  padding: 8px 12px;
  color: var(--ink);
  font-weight: 800;
}

.class-chip.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.empty-note {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
}

/* 교실 — 활동 카드 3종 */
.activity-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.activity-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 14px;
  padding: 18px 20px;
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  text-align: left;
  border: 3px solid transparent;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.activity-card:hover { border-color: var(--accent); transform: translateY(-2px); }

.activity-emoji { font-size: 36px; }
.activity-kind { font-size: 18px; font-weight: 700; }
.activity-title { font-size: 15px; color: var(--ink-soft); grid-column: 2; }

.done-badge {
  background: #ffe6c2;
  color: #a45a14;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  grid-row: span 2;
}

/* 활동 공통 버튼 */
.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}

.big-btn {
  background: #fff;
  border: 3px solid var(--accent);
  color: var(--ink);
  padding: 16px 22px;
  border-radius: var(--radius);
  font-size: 19px;
  font-weight: 700;
  min-width: 140px;
  box-shadow: var(--shadow);
  transition: transform 0.12s ease;
}

.big-btn:hover { transform: translateY(-2px); }

.big-btn.primary {
  background: var(--accent);
  color: #fff;
}

.big-btn.option {
  flex: 1 1 30%;
  min-width: 120px;
}

.big-btn.option.wrong {
  background: #ffd5d5;
  border-color: #ff7373;
  color: #8a1f1f;
}

.nav-btn {
  background: #fff;
  border: 2px solid var(--ink-soft);
  color: var(--ink);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  font-weight: 600;
}

.ghost-btn {
  background: transparent;
  border: 2px dashed var(--ink-soft);
  color: var(--ink-soft);
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-size: 16px;
  align-self: center;
  margin-top: 8px;
}

.ghost-btn.danger {
  border-color: #d97878;
  color: #a14040;
}

.hidden { display: none !important; }

/* 카드북 */
.card-slot {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  border-top: 8px solid var(--accent);
}

.card-emoji {
  font-size: 96px;
  line-height: 1.1;
  text-align: center;
}

.card-word {
  font-size: 30px;
  font-weight: 700;
  text-align: center;
}

.card-progress {
  text-align: center;
  color: var(--ink-soft);
  font-size: 15px;
}

/* 동화 */
.story-stage {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  border-top: 8px solid var(--accent);
  min-height: 240px;
}

.story-emoji { font-size: 84px; line-height: 1.1; }
.story-text { font-size: 20px; text-align: center; line-height: 1.5; }
.story-progress { color: var(--ink-soft); font-size: 14px; }

.celebrate { font-size: 96px; }
.celebrate.big { font-size: 110px; text-align: center; margin-top: 12px; }
.celebrate-text { font-size: 22px; font-weight: 700; text-align: center; }

/* 메모리 게임 */
.memory-status {
  text-align: center;
  font-size: 18px;
  font-weight: 600;
  color: var(--ink-soft);
}

.memory-board {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  background: var(--card-bg);
  padding: 14px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border-top: 8px solid var(--accent);
}

.memory-board[data-size="6"] { grid-template-columns: repeat(3, 1fr); }
.memory-board[data-size="8"] { grid-template-columns: repeat(4, 1fr); }
.memory-board[data-size="10"] { grid-template-columns: repeat(5, 1fr); }
.memory-board[data-size="12"] { grid-template-columns: repeat(4, 1fr); }

.memory-tile {
  background: var(--accent);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: 32px;
  font-weight: 800;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 4px solid #fff;
  transition: transform 0.2s ease, background 0.2s ease;
}

.memory-tile.face-up {
  background: #fff;
  color: var(--ink);
  border-color: var(--accent);
}

.memory-tile.matched {
  background: #cdf2c4;
  color: #2b5a1c;
  border-color: #7fc26d;
  cursor: default;
}

/* 보상 정원 */
.sticker-field {
  background: #fff;
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
  font-size: 24px;
  line-height: 1.6;
  word-break: break-all;
  text-align: center;
  min-height: 80px;
}

.garden-sub {
  margin: 6px 0 0;
  font-size: 18px;
  color: var(--ink-soft);
}

.completed-list {
  margin: 0;
  padding-left: 22px;
  color: var(--ink-soft);
  font-size: 15px;
}

/* 365일 학습지도와 진행 모니터링 */
.day-navigator {
  display: grid;
  grid-template-columns: 1fr auto minmax(120px, 1fr) auto;
  align-items: center;
  gap: 10px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 12px 14px;
}
.day-label {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 128px;
}
.day-label strong {
  font-size: 20px;
  line-height: 1.2;
}
.day-label span {
  color: var(--ink-soft);
  font-size: 14px;
}
.day-range {
  width: 100%;
  accent-color: var(--accent, var(--primary));
}
.day-navigator .week-select {
  grid-column: 1 / -1;
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.panel-title {
  margin: 0;
  font-size: 20px;
}
.panel-sub {
  margin: 2px 0 0;
  color: var(--ink-soft);
  font-size: 14px;
}
.monitor-panel,
.learning-map-panel {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  border-top: 8px solid var(--accent, var(--primary));
}
.monitor-grid,
.garden-progress {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 14px;
}
.garden-progress {
  grid-template-columns: repeat(2, 1fr);
  width: 100%;
}
.monitor-card {
  background: var(--bg-soft);
  border-radius: var(--radius-sm);
  padding: 12px;
  min-height: 118px;
}
.monitor-card strong {
  display: block;
  font-size: 24px;
  margin: 4px 0;
}
.monitor-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
}
.monitor-label {
  display: block;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 700;
}
.progress-ring {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  background: conic-gradient(var(--accent, var(--primary)) var(--progress), #f2eadc 0);
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  position: relative;
}
.progress-ring::before {
  content: '';
  position: absolute;
  inset: 9px;
  background: #fff;
  border-radius: 50%;
}
.progress-ring strong,
.progress-ring span {
  position: relative;
  z-index: 1;
  line-height: 1.1;
}
.progress-ring strong { font-size: 18px; }
.progress-ring span { font-size: 11px; color: var(--ink-soft); }
.today-plan {
  margin-top: 14px;
  background: #fff9ed;
  border: 2px solid #ffe1b5;
  border-radius: var(--radius-sm);
  padding: 14px;
}
.today-plan h3 {
  margin: 0 0 6px;
  font-size: 17px;
}
.today-plan p {
  margin: 0 0 10px;
  color: var(--ink);
}
.today-plan dl {
  margin: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 6px 10px;
  font-size: 14px;
}
.today-plan dt {
  color: var(--ink-soft);
  font-weight: 700;
}
.today-plan dd { margin: 0; }
.map-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
}
.legend-item {
  font-size: 12px;
  border-radius: 999px;
  padding: 4px 8px;
  background: #f4eadb;
  color: var(--ink-soft);
  font-weight: 700;
}
.legend-item.done { background: #d8f4c8; color: #2f6a20; }
.legend-item.started { background: #fff1bd; color: #795700; }
.legend-item.current { background: var(--primary-soft); color: var(--ink); }
.learning-map-grid {
  display: grid;
  grid-template-columns: repeat(21, minmax(18px, 1fr));
  gap: 5px;
  margin-top: 14px;
  max-height: 230px;
  overflow: auto;
  padding: 2px;
}
.day-dot {
  width: 100%;
  aspect-ratio: 1;
  min-width: 18px;
  border-radius: 7px;
  background: #f3eadb;
  border: 2px solid transparent;
  color: #806d54;
  font-size: 9px;
  font-weight: 800;
  line-height: 1;
}
.day-dot.started { background: #fff1bd; border-color: #e5b440; }
.day-dot.done { background: #cdf2c4; border-color: #7fc26d; color: #2b5a1c; }
.day-dot.current {
  outline: 3px solid var(--accent, var(--primary));
  outline-offset: 1px;
  transform: scale(1.06);
}
.activity-card.today-activity {
  border-color: var(--accent);
  background: linear-gradient(180deg, #fff 0%, #fff8eb 100%);
}
.activity-badges {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 6px;
  grid-row: span 2;
}
.today-badge {
  background: var(--primary-soft);
  color: var(--ink);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 800;
}

/* 교사용 3D 모니터링 */
.teacher-dashboard {
  gap: 18px;
}

.teacher-summary-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
}

.teacher-summary-card {
  min-height: 98px;
  display: grid;
  align-content: center;
  gap: 5px;
  padding: 14px;
  border-radius: var(--radius-sm);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.95), rgba(255, 245, 229, 0.92)),
    radial-gradient(circle at 90% 0%, rgba(76, 181, 255, 0.16), transparent 44%);
  border: 2px solid rgba(125, 92, 55, 0.18);
  box-shadow: var(--shadow);
}

.teacher-summary-card span {
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 900;
}

.teacher-summary-card strong {
  color: var(--ink);
  font-size: 25px;
  line-height: 1.1;
}

.three-scene.teacher-monitor {
  height: 330px;
  background:
    linear-gradient(180deg, #eef8ff 0%, #fff4dc 100%),
    radial-gradient(circle at 50% 18%, rgba(123, 211, 137, 0.2), transparent 38%);
}

.teacher-control-panel {
  display: grid;
  gap: 14px;
  border-top: 8px solid #5b4bb7;
}

.class-chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.teacher-form-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 10px;
}

.teacher-mini-form {
  display: grid;
  grid-template-columns: minmax(120px, 1fr) auto auto;
  gap: 8px;
  align-items: center;
  background: var(--bg-soft);
  border-radius: var(--radius-sm);
  padding: 10px;
}

.teacher-mini-form:nth-child(2) {
  grid-template-columns: minmax(100px, 1fr) minmax(100px, 1fr) auto auto;
}

.class-monitor-panel-3d {
  border-top: 8px solid #5b4bb7;
}

.student-monitor-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.student-monitor-card {
  display: grid;
  gap: 12px;
  padding: 14px;
  border-radius: var(--radius-sm);
  border: 2px solid rgba(125, 92, 55, 0.16);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(236, 250, 246, 0.9)),
    radial-gradient(circle at 94% 6%, rgba(255, 138, 61, 0.16), transparent 44%);
}

.student-monitor-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.student-monitor-head strong {
  display: block;
  font-size: 21px;
}

.student-monitor-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.student-monitor-stats div {
  background: rgba(255, 248, 238, 0.78);
  border-radius: 12px;
  padding: 9px;
}

.student-monitor-stats span {
  display: block;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 900;
}

.student-monitor-stats strong {
  display: block;
  margin-top: 3px;
  font-size: 15px;
}

.monitor-progress-bar {
  height: 14px;
  overflow: hidden;
  border-radius: 999px;
  background: #f2eadc;
  border: 2px solid #ead7bf;
}

.monitor-progress-bar span {
  display: block;
  height: 100%;
  min-width: 4px;
  border-radius: inherit;
  background: linear-gradient(90deg, #ff8a3d, #4cb5ff, #7bd389);
}

/* ROOT 관리자 */
.root-admin-dashboard {
  gap: 18px;
}

.root-monitor {
  border-top-color: #5b4bb7;
  background:
    linear-gradient(180deg, #f3f0ff 0%, #eef8ff 55%, #fff4dc 100%),
    radial-gradient(circle at 14% 16%, rgba(91, 75, 183, 0.18), transparent 34%);
}

.root-panel {
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  border-top: 8px solid #5b4bb7;
}

.admin-login-screen {
  max-width: 1120px;
  margin: 0 auto;
}

.admin-login-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  align-items: stretch;
  margin: 24px 0;
}

.admin-login-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 22px;
  border: 1px solid rgba(28, 79, 116, .14);
  border-radius: 22px;
  background: rgba(255, 255, 255, .92);
  box-shadow: var(--shadow);
}

.admin-login-card h2 {
  margin: 0;
  font-size: 1.2rem;
}

.admin-login-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.admin-google-config-form {
  display: grid;
  gap: 12px;
}

.admin-google-config-form label {
  display: grid;
  gap: 7px;
  color: var(--ink);
  font-weight: 800;
}

.admin-google-config-form input {
  width: 100%;
  border: 1px solid rgba(28, 79, 116, .18);
  border-radius: 14px;
  padding: 13px 14px;
  font: inherit;
  background: #f8fcff;
}

.google-signin-card {
  min-height: 320px;
}

.google-login-button {
  min-height: 44px;
  display: flex;
  align-items: center;
  color: var(--muted);
  font-weight: 800;
}

.admin-profile-strip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: 18px;
  background: rgba(19, 163, 136, .1);
}

.admin-profile-strip img,
.admin-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
}

.admin-avatar {
  display: inline-grid;
  place-items: center;
  background: var(--accent-blue);
  color: #fff;
  font-weight: 900;
}

.auth-message.error {
  color: #9b1c1c;
  background: rgba(255, 233, 233, .9);
  border-color: rgba(155, 28, 28, .18);
}

.root-summary-grid .teacher-summary-card {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.97), rgba(242, 246, 255, 0.94)),
    radial-gradient(circle at 90% 0%, rgba(91, 75, 183, 0.14), transparent 44%);
}

.root-management-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin-top: 14px;
}

.root-management-grid h3 {
  margin: 0 0 10px;
  font-size: 18px;
}

.credential-list {
  display: grid;
  gap: 10px;
}

.credential-card,
.content-admin-card,
.root-class-row {
  border: 2px solid rgba(91, 75, 183, 0.14);
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98), rgba(246, 251, 255, 0.94));
}

.credential-card {
  display: grid;
  gap: 10px;
  padding: 12px;
}

.credential-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.credential-head strong {
  display: block;
  font-size: 18px;
}

.credential-meta {
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 900;
}

.credential-form,
.content-admin-form {
  display: grid;
  gap: 8px;
}

.credential-form {
  grid-template-columns: 1fr 1fr auto;
  align-items: end;
}

.credential-form label {
  display: grid;
  gap: 4px;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 900;
}

.credential-form input,
.content-admin-form input,
.content-admin-form select {
  width: 100%;
  border: 2px solid #ead7bf;
  border-radius: 12px;
  padding: 9px 10px;
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 14px;
}

.root-class-list {
  display: grid;
  gap: 8px;
  margin-top: 14px;
}

.root-class-row {
  display: grid;
  grid-template-columns: 1.1fr 1fr auto auto;
  gap: 10px;
  align-items: center;
  padding: 12px;
}

.root-class-row span {
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 800;
}

.content-admin-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.content-admin-card {
  display: grid;
  gap: 12px;
  padding: 12px;
  border-top: 6px solid var(--accent);
}

.content-admin-card strong {
  display: block;
  margin-top: 2px;
  font-size: 17px;
  line-height: 1.3;
}

.content-admin-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.content-admin-metrics span {
  background: var(--bg-soft);
  border-radius: 10px;
  padding: 7px 6px;
  text-align: center;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 900;
}

/* 주차 선택기 */
.week-selector {
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  align-items: center;
  gap: 8px;
  background: #fff;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 10px 14px;
}
.week-label {
  font-weight: 700;
  color: var(--ink);
  font-size: 17px;
  padding: 0 6px;
}
.week-select {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 2px solid var(--accent, var(--primary));
  font-family: inherit;
  font-size: 16px;
  background: #fff;
  color: var(--ink);
}
.week-nav {
  background: #fff;
  border: 2px solid var(--ink-soft);
  color: var(--ink);
  width: 42px;
  height: 42px;
  border-radius: 12px;
  font-size: 16px;
  font-weight: 700;
}
.week-nav:disabled { opacity: 0.4; }

/* 5활동 그리드 */
.activity-grid.five {
  grid-template-columns: 1fr 1fr;
}
.activity-grid.five .activity-card:last-child {
  grid-column: 1 / -1;
}

/* 듣고 고르기 */
.listen-stage {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  border-top: 8px solid var(--accent);
}
.listen-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  width: 100%;
}
.listen-tile {
  background: #fff;
  border: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 14px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-height: 110px;
  transition: transform 0.12s ease;
}
.listen-tile:hover { transform: translateY(-2px); }
.listen-tile.right { background: #cdf2c4; border-color: #7fc26d; }
.listen-tile.wrong { background: #ffd5d5; border-color: #ff7373; opacity: 0.6; }
.listen-emoji { font-size: 48px; line-height: 1; }
.listen-word { font-size: 15px; color: var(--ink); font-weight: 600; text-align: center; }

/* 따라 말하기 */
.speak-stage {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  border-top: 8px solid var(--accent);
  min-height: 220px;
}
.speak-emoji { font-size: 84px; line-height: 1; }
.speak-prompt { font-size: 32px; font-weight: 700; text-align: center; }

/* 3D 장면 컨테이너 */
.three-scene {
  background: linear-gradient(180deg, #fff7e8 0%, #ffefd0 100%);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border-top: 8px solid var(--accent, var(--primary));
  width: 100%;
  overflow: hidden;
  touch-action: none;
}
.three-scene.welcome { height: 280px; }
.three-scene.classroom { height: 260px; }
.three-scene.quiz { height: 240px; margin-top: 6px; }
.three-scene canvas { display: block; width: 100% !important; height: 100% !important; }

.three-hint {
  margin: 4px 0 0;
  text-align: center;
  font-size: 14px;
  color: var(--ink-soft);
}

.three-reward-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  background: rgba(255, 248, 238, 0.25);
}
.three-reward-overlay canvas { display: block; width: 100% !important; height: 100% !important; }

/* 작은 화면 */
@media (max-width: 480px) {
  body { font-size: 17px; }
  #app-root { padding: 12px; }
  .app-header { align-items: flex-start; flex-direction: column; }
  .header-actions { justify-content: flex-start; }
  .screen-title { font-size: 24px; }
  .age-grid { grid-template-columns: 1fr; }
  .age-card { min-height: 140px; }
  .auth-quick-panel { align-items: flex-start; flex-direction: column; }
  .signup-layout,
  .admin-login-grid,
  .profile-switch-grid,
  .teacher-form-grid,
  .root-management-grid,
  .content-admin-grid,
  .root-class-row,
  .student-monitor-list { grid-template-columns: 1fr; }
  .teacher-summary-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .teacher-mini-form,
  .teacher-mini-form:nth-child(2) { grid-template-columns: 1fr; }
  .credential-form { grid-template-columns: 1fr; }
  .student-monitor-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .card-emoji { font-size: 78px; }
  .card-word { font-size: 26px; }
  .story-emoji { font-size: 68px; }
  .story-text { font-size: 18px; }
  .big-btn { min-width: 100px; padding: 14px 16px; font-size: 17px; }
  .memory-board { grid-template-columns: repeat(3, 1fr) !important; }
  .day-navigator { grid-template-columns: auto 1fr auto; }
  .day-label { grid-column: 1 / -1; }
  .monitor-grid,
  .garden-progress { grid-template-columns: 1fr; }
  .panel-head { align-items: flex-start; }
  .learning-map-grid { grid-template-columns: repeat(14, minmax(18px, 1fr)); max-height: 260px; }
  .activity-badges { align-items: flex-start; grid-column: 2 / -1; grid-row: auto; flex-direction: row; }
  .three-scene.welcome { height: 220px; }
  .three-scene.classroom { height: 210px; }
  .three-scene.quiz { height: 200px; }
  .three-scene.teacher-monitor { height: 260px; }
}