.learning-main { 
    max-width: 960px; 
    margin: 0 auto;
    margin-bottom : 40px;
    padding: 0px 20px; 
}
.learning-main.practice-mode {
    padding-top: 80px;
}
body.learning-page {
    background-color: #FFFFFF;
    font-family: 'Inter', sans-serif;
}
body.learning-page .main-header {
    height: 55px;
    line-height: 55px;
}

body.learning-page .logo {
    line-height: normal;
}

.learn-wrap {
  max-width: 960px;
  margin: 0px auto;
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 0px 20px; 
}

.learn-title {
  display: none;
}

/* 영상 박스 내 video 태그 */
.learn-video {
  width: 100%;
  height: 100%;
  object-fit: fill;
  position: absolute;
  top: 0; left: 0;
}

/* 재생 버튼 오버레이 */
.video-play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 56px;
  height: 56px;
  background: rgba(44, 62, 99, 0.75);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.2s;
  z-index: 10;
  border: none;
}

.video-play-btn:hover {
  background: rgba(44, 62, 99, 0.95);
}

.video-play-btn svg {
  width: 22px;
  height: 22px;
  fill: #fff;
  margin-left: 3px; 
}

.video-play-btn.playing {
  display: none; /* 재생 중엔 숨김 */
}

/* ─── 스테퍼 ─── */
.stepper-row {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin-bottom: 80px;
  width: 100%;
  padding: 0 110px;
  box-sizing: border-box;
}

.stepper-row .node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  flex-shrink: 0;
  position: relative;
  width: 32px; 
}

.stepper-row .dot {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #E7EEF7;
  color: #34436D;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 14.5px;
  transition: background 0.25s ease, color 0.25s ease;
}

.stepper-row .node.active .dot {
  background: #34436D;
  color: #FFFFFF;
}

.stepper-row .node.done .dot {
  background: #34436D;
  color: #FFFFFF;
}


.stepper-row .node span {
  position: absolute;
  top: 40px;
  font-size: 12px;
  font-weight: 500;
  color: #323232;
  white-space: nowrap;
  transform: translateX(-50%);
  left: 50%;
}

/* 연결선 */
.stepper-row .line {
  flex: 1;
  height: 6px;
  background: #E7EEF7;
  align-self: flex-start;
  margin-top: 13px;
  position: relative;
  overflow: hidden;
}

.stepper-row .line::after {
  content: '';
  position: absolute;
  top: 0; left: 0;
  height: 100%;
  width: 0%;
  background: #34436D;
  transition: width 0.2s ease;
}

.stepper-row .line.done::after {
  width: 100%;
}
/* ─── 본문 레이아웃 ─── */
.learn-body {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 40px;
  align-items: start;
}

/* 영상 박스 */
.video-box {
  width: 100%;
  aspect-ratio: 854 / 462;
  background: #F1F1F1;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  color: #9D9D9D;
  font-size: 20px;
}

.video-box .char-huge {
  font-size: 100px;
  font-weight: 700;
  color: #2C3E63;
}

.camera-box {
  width: 100%;
  aspect-ratio: 854 / 462;
  background: #F1F1F1;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.camera-box video,
.camera-box canvas {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  top: 0; left: 0;
  transform: scaleX(-1);
}

.camera-wrap {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.camera-status-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #F3F9FF;
  border-radius: 5px;
  padding: 6px 14px;
  margin-top: 8px;
}

.camera-status-text {
  font-size: 11px;
  font-weight: 500;
  color: #474747;
  line-height: 24px;
}

.camera-check-btn {
  background: #FFFFFF;
  border: 1px solid #517AAF;
  border-radius: 5px;
  color: #517AAF;
  font-size: 11px;
  font-weight: 400;
  padding: 0 12px;
  height: 24px;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
}

.camera-check-btn:hover {
  background: #f0f5ff;
}

/* 사이드 정보 박스 */
.side-info {
  width: 100%;
  aspect-ratio: 854 / 462;
  border: 1px solid #D6D6D6;
  border-radius: 6px;
  padding: 12px 21px;
  display: flex;
  flex-direction: column;
  gap: 0;
  box-sizing: border-box;
}

.side-info h3 {
  font-size: 14px;
  font-weight: 500;
  color: #474747;
  line-height: 30px;
  padding-bottom: 0;
  border-bottom: none;
  margin-bottom: 0;
}

.guide-item {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 10px;
}

.guide-icon {
  width: 20px;
  height: 20px;
  background: #EFF2F5;
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.guide-icon img {
  width: 26px;
  height: 26px;
  object-fit: contain;
}

.guide-item span {
  font-size: 13px;
  font-weight: 400;
  color: #454545;
  line-height: 36px;
}

/* 구분선 */
.side-info .divider {
  width: 100%;
  height: 0.5px;
  background: #E7E7E7;
  margin: 10px 0;
}

.side-info .target-char {
  font-size: 18px;
  font-weight: 500;
  color: #474747;
  line-height: 30px;
  margin-top: 5px;
}

.side-info .word-desc {
  font-size: 12px;
  color: #777777;
  line-height: 30px;
  margin-top: 5px;
}

.side-info .pass-line {
  font-size: 13px;
  color: #6B7280;
  margin-top: 2px;
}
.side-info .pass-line b { color: #4a6cf7; }

.side-info .gauge {
  margin-top: 12px;
  font-size: 28px;
  font-weight: 700;
  color: #4a6cf7;
}

.side-info .status-line {
  font-size: 12px;
  color: #8c93a8;
  margin-top: auto;
}

.side-info .top3 {
  font-size: 12px;
  color: #2C3E63;
  line-height: 1.8;
}

.sentence-preview-box {
  background: #F1F1F1;
}

.sentence-info-card h3,
.sentence-score-card h3 {
  font-size: 14px;
  font-weight: 500;
  color: #474747;
  line-height: 30px;
}

.sentence-info-card .target-char,
.sentence-score-card .target-char {
  color: #474747;
  font-size: 18px;
  line-height: 30px;
  margin-top: 5px;
}

.sentence-practice-box {
  background: #F1F1F1;
}

.sentence-word-chip-row {
  position: absolute;
  top: 26px;
  left: 24px;
  right: 86px;
  z-index: 8;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.sentence-word-chip {
  min-width: 64px;
  height: 28px;
  padding: 0 14px;
  border: 1px solid #D7D7D7;
  border-radius: 17px;
  background: #FFFFFF;
  color: #323232;
  font-size: 12px;
  font-weight: 400;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
}

.sentence-word-chip.active,
.sentence-word-chip.done {
  background: #517AAF;
  border-color: #517AAF;
  color: #FFFFFF;
}

.practice-label {
  margin-top: 12px;
  font-size: 13px;
  color: #454545;
  line-height: 1.6;
}

.sentence-video-list-section {
  margin-top: 34px;
}

.sentence-video-list-section h3 {
  font-size: 14px;
  font-weight: 500;
  color: #323232;
  margin: 0 0 14px;
}

.sentence-video-list-row {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
}

.sentence-video-list {
  display: flex;
  align-items: stretch;
  gap: 28px;
  overflow-x: auto;
  padding-bottom: 8px;
  min-width: 0;
  scrollbar-width: thin;
  scrollbar-color: #C9D3E5 transparent;
}

.sentence-video-list::-webkit-scrollbar {
  height: 6px;
}

.sentence-video-list::-webkit-scrollbar-track {
  background: transparent;
}

.sentence-video-list::-webkit-scrollbar-thumb {
  background: #C9D3E5;
  border-radius: 999px;
}

.sentence-video-card {
  position: relative;
  flex: 0 0 88px;
  height: 86px;
  padding: 0;
  border: 1px solid #E7E7E7;
  border-radius: 2px;
  background: #FFFFFF;
  overflow: visible;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
}

.sentence-video-card:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 50%;
  right: -17px;
  width: 8px;
  height: 8px;
  border-top: 2px solid #517AAF;
  border-right: 2px solid #517AAF;
  transform: translateY(-50%) rotate(45deg);
  pointer-events: none;
}

.sentence-video-card.active {
  border-color: #517AAF;
  box-shadow: 0 0 0 1px #517AAF inset;
}

.sentence-video-thumb {
  height: 56px;
  background: #F1F1F1;
  color: #A0A0A0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 8px;
  text-align: center;
  overflow: hidden;
}

.sentence-video-thumb video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.sentence-video-title {
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 8px;
  color: #474747;
  font-size: 10px;
  font-weight: 400;
  line-height: 1.35;
  text-align: center;
  word-break: keep-all;
}

.sentence-step-actions {
  display: flex;
  gap: 18px;
  flex-shrink: 0;
  align-items: flex-start;
}

.sentence-step-actions button {
  border: none;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
}

.sentence-step-actions .btn-secondary,
.sentence-step-actions .btn-primary {
  min-width: 96px;
  height: 34px;
  padding: 0 24px;
}

/* ─── 하단 버튼 ─── */
.learn-footer {
  margin-top: 54px;
  display: flex;
  justify-content: flex-end;
  gap: 26px;
}

.learn-footer button {
  border: none;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
}

.btn-secondary {
  background: #E6E6E6;
  color: #474747;
  padding: 8px 30px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 400;
}

.btn-secondary:hover {
  background: #d5d5d5;
}

.btn-primary {
  background: #517AAF;
  color: #FFFFFF;
  padding: 8px 30px;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 400;
}

.btn-primary:hover {
  background: #3f6391;
}

.btn-primary:disabled {
  background: #b4bcd3;
  cursor: not-allowed;
}

/* 타이머 - 원형 시계 */
.camera-timer-wrap {
  position: absolute;
  top: 12px;
  right: 14px;
  width: 44px;
  height: 44px;
  z-index: 10;
}

.camera-timer-wrap svg {
  width: 44px;
  height: 44px;
  transform: rotate(-90deg);
}

.timer-bg { fill: #E6E6E6; }
.timer-track { fill: none; stroke: #E6E6E6; stroke-width: 5; }
.timer-fill {
  fill: none;
  stroke: #34436D;
  stroke-width: 5;
  stroke-linecap: butt;
  stroke-dasharray: 107;
  stroke-dashoffset: 107;
  transition: stroke-dashoffset 1s linear;
}

.camera-timer-text {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  font-size: 11px;
  font-weight: 500;
  color: #323232;
}

.score-gauge-wrap {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  margin-top: 14px;
  gap: 50px;
}

.score-target {
  display: flex;
  flex-direction: column;
  min-width: 0;
  flex: 0 1 auto;
}

.score-label {
  font-size: 12.5px;
  color: #454545;
  font-weight: 400;
}

.score-value {
  font-size: 18px;
  font-weight: 500;
  color: #517AAF;
}

.score-display {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  flex-shrink: 0;
}

.score-num {
  font-size: 38px;
  font-weight: 700;
  color: #517AAF;
  line-height: 1;
  white-space: nowrap;
}

.score-meta-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid #E7E7E7;
}
/* ─── 카테고리 / 레슨 그리드 ─── */
.learning-header {
  margin-bottom: 22px;
}


.learning-header h1 {
  font-size: 17px;
  font-weight: 600;
  color: #474747;
  margin-top: 22px;
  margin-bottom: 10px;
}
.learning-header p {
  color: #6B7280;
  font-size: 12.2px;
  margin-bottom: 5px;
}
.seed-btn {
  padding: 6px 14px;
  background: #eef0f7;
  border: 1px solid #d6dae8;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  color: #3b3f55;
}
.seed-btn:hover { background: #dfe3f1; }

.category-section {
  margin-bottom: 24px;
}
.category-title {
  font-size: 14px;
  font-weight: 600;
  color: #2C3E63;
  margin-bottom: 12px;
  padding-left: 0;
}

.learning-header.section-start {
  border-top: 1px solid #E7E7E7;
  padding-top: 24px;
  margin-top: 48px;
}

.lesson-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 10px;
}

.lesson-card {
  aspect-ratio: 1 / 1;
  background: #fff;
  border: 1px solid #e6e8f0;
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  font-weight: 600;
  color: #2C3E63;
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
  text-decoration: none;
}
.lesson-card:hover {
  background: #f0f2f8;
  border-color: #c5cde8;
  transform: none;
  box-shadow: none;
}
.lesson-card.completed {
  color: #517AAF;
}

.word-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 15px;
}
.word-tab {
  padding: 6px 12px;
  border-radius: 20px;
  background: #eef0f7;
  border: 1px solid #e6e8f0;
  color: #3b3f55;
  font-size: 12px;
  cursor: pointer;
  transition: all 0.15s;
}
.word-tab:hover { background: #dfe3f1; }
.word-tab.active {
  background: #273356;
  color: #fff;
  border-color: #273356;
}
.lesson-card.word-card {
  aspect-ratio: auto;
  padding: 14px;
  font-size: 12px;
  font-weight: 500;
  min-height: 44px;
}

.sentence-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
.lesson-card.sentence-card {
  aspect-ratio: auto;
  padding: 16px;
  font-size: 12px;
  font-weight: 500;
  line-height: 1.3;
  min-height: 70px;
  height: auto;
  text-align: left;
  align-items: center;  
  justify-content: center;
}

.word-mini-stepper {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}
.word-mini-chip {
  padding: 4px 10px;
  border-radius: 12px;
  background: #eef0f7;
  border: 1px solid #e6e8f0;
  color: #6B7280;
  font-size: 12px;
  font-weight: 600;
}
.word-mini-chip.active {
  background: #2C3E63;
  color: #fff;
  border-color: #2C3E63;
}
.word-mini-chip.done {
  background: #4a6cf7;
  color: #fff;
  border-color: #4a6cf7;
}
.word-mini-chip.failed {
  background: #fff;
  color: #7d2523;
  border-color: #7d2523;
}

.progress-wrap {
  margin-top: 8px;
  width: 100%;
  height: 10px;
  background: #eef0f7;
  border-radius: 5px;
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #4a6cf7, #2c3e63);
  transition: width 0.15s linear;
}
.progress-time {
  margin-top: 4px;
  font-size: 12px;
  color: #4a6cf7;
  font-weight: 600;
  text-align: right;
}
.step4-wrap {
  padding: 20px 0;
}
 
.step4-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid #e6e8f0;
  border-radius: 5px;
  padding: 28px 32px;
  max-width: 400px;
  margin: 0 auto;  
}
 
.step4-left {
  display: flex;
  flex-direction: column;
}
 
.step4-label {
  font-size: 13px;
  color: #6B7280;
  font-weight: 400;
}
 
.step4-word {
  font-size: 18px;
  font-weight: 500;
  color: #474747;
  margin-top: 2px;
}
 
.step4-score {
  font-size: 18px;
  font-weight: 500;
  color: #517AAF;
  margin-top: 2px;
}
 
.step4-right {
  display: flex;
  flex-direction: column;
  gap: 12px;               
}
 
.step4-right .btn-secondary,
.step4-right .btn-primary {
  width: 120px;
  text-align: center;
  border: none;
}
 
.step4-congrats {
  text-align: center;
  font-size: 20px;
  font-weight: 500;
  color: #1a1a1a;
  margin-bottom: 32px;
  line-height: 1.6;
}
 
.step4-congrats p {
  margin: 0;
}