/* ===== 기본 ===== */
:root {
  --bg: #f5f7ff;
  --card: #ffffff;
  --text: #1f2340;
  --muted: #6b7280;
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --accent: #f59e0b;
  --ok: #10b981;
  --danger: #ef4444;
  --border: #e5e7eb;
  --radius: 16px;
  --shadow: 0 4px 14px rgba(31, 35, 64, 0.08);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "Pretendard", "Noto Sans KR", "Malgun Gothic", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  overscroll-behavior: none;
}

button { font-family: inherit; }

.view {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  padding-top: var(--safe-top);
  padding-bottom: var(--safe-bottom);
}
.view[hidden] { display: none; }

/* ===== 오류 배너 ===== */
.error-banner {
  background: #fef2f2;
  color: #991b1b;
  border-bottom: 2px solid #fca5a5;
  padding: 10px 14px;
  font-size: 0.9rem;
  font-weight: 600;
  word-break: break-all;
}
.error-banner[hidden] { display: none; }

/* ===== 상단 바 ===== */
.topbar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--card);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 10;
}
.topbar-title {
  flex: 1;
  margin: 0;
  font-size: 1.15rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ===== 버튼 ===== */
.btn {
  border: none;
  border-radius: 12px;
  background: #eef0f7;
  color: var(--text);
  font-size: 1rem;
  font-weight: 600;
  padding: 10px 16px;
  cursor: pointer;
  user-select: none;
  min-height: 44px;
  transition: transform 0.08s, background 0.15s;
}
.btn:active { transform: scale(0.95); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:active { background: var(--primary-dark); }
.btn-icon {
  width: 44px;
  padding: 0;
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn-big {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  font-size: 1.6rem;
  background: #fff;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: center;
}
.btn-play {
  width: 88px;
  height: 88px;
  font-size: 2rem;
  background: var(--primary);
  color: #fff;
}
.btn-chip {
  border-radius: 999px;
  padding: 8px 11px;
  font-size: 0.9rem;
  background: #fff;
  border: 2px solid var(--border);
  min-height: 40px;
}
.btn-chip.is-on { border-color: var(--primary); background: #eef2ff; color: var(--primary); }
.btn-chip[data-state="on"] { border-color: var(--accent); background: #fff7ed; color: #b45309; }

/* ===== 라이브러리 ===== */
.library-main { flex: 1; padding: 14px; }
.library-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.library-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 12px;
  cursor: pointer;
}
.library-item:active { transform: scale(0.98); }
.library-thumb {
  width: 96px;
  height: 64px;
  border-radius: 10px;
  background: #dfe3f5;
  object-fit: cover;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}
.library-info { flex: 1; min-width: 0; }
.library-name { font-weight: 700; font-size: 1.05rem; margin: 0 0 4px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.library-meta { color: var(--muted); font-size: 0.85rem; margin: 0; }
.library-delete { color: var(--danger); background: transparent; font-size: 1.2rem; padding: 8px; }
.library-empty { text-align: center; color: var(--muted); line-height: 1.8; margin-top: 60px; }
.library-empty[hidden] { display: none; }
.storage-info { text-align: center; color: var(--muted); font-size: 0.8rem; padding: 10px; }

/* ===== 대화상자 ===== */
.dialog {
  border: none;
  border-radius: var(--radius);
  padding: 0;
  width: min(92vw, 420px);
  box-shadow: 0 10px 40px rgba(0,0,0,0.25);
}
.dialog::backdrop { background: rgba(0,0,0,0.45); }
.dialog form { padding: 20px; display: flex; flex-direction: column; gap: 14px; }
.dialog h2 { margin: 0 0 4px; font-size: 1.2rem; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field-label { font-weight: 600; font-size: 0.9rem; }
.field-label small { color: var(--muted); font-weight: 400; }
.field input[type="text"] {
  font-size: 1rem;
  padding: 10px 12px;
  border: 2px solid var(--border);
  border-radius: 10px;
}
.field input[type="file"] { font-size: 0.9rem; }
.field select { font-size: 1rem; padding: 10px 12px; border: 2px solid var(--border); border-radius: 10px; background: #fff; }
.field-row { flex-direction: row; align-items: center; gap: 10px; }
.field-row input[type="checkbox"] { width: 22px; height: 22px; }
.imp-status { margin: 0; min-height: 1.2em; font-size: 0.9rem; color: var(--primary); }
.dialog-pin { width: min(88vw, 320px); }
.dialog-pin input {
  font-size: 1.6rem;
  letter-spacing: 0.4em;
  text-align: center;
  padding: 10px;
  border: 2px solid var(--border);
  border-radius: 10px;
  width: 100%;
}
.pin-error { margin: 0; min-height: 1.2em; color: var(--danger); font-size: 0.9rem; text-align: center; }

.diag { border-top: 1px solid var(--border); padding-top: 12px; }
.diag-list { list-style: none; margin: 6px 0; padding: 0; font-size: 0.9rem; line-height: 1.7; }
.diag-actions { display: flex; flex-wrap: wrap; }
.diag-actions .btn { margin: 4px 6px 4px 0; font-size: 0.9rem; }
.diag-result { margin: 6px 0 0; font-size: 0.9rem; color: var(--primary); min-height: 1.2em; word-break: break-all; white-space: pre-line; }
.dialog-actions { display: flex; justify-content: flex-end; }
.dialog-actions > .btn { margin-left: 10px; }

/* ===== 플레이어 ===== */
.player-body { flex: 1; display: flex; flex-direction: column; gap: 10px; padding: 10px 12px 20px; }
/* 세로(폰)에서는 좌/우 컨테이너를 없는 것처럼 취급해 한 줄로 쌓임 */
.player-left, .player-right { display: contents; }

.video-wrap {
  position: relative;
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  max-height: 42vh;
  display: flex;
  align-items: center;
  justify-content: center;
}
.video-wrap video { width: 100%; height: 100%; object-fit: contain; display: block; }

.player-msg {
  position: absolute;
  left: 50%;
  bottom: 12px;
  transform: translateX(-50%);
  max-width: 90%;
  background: rgba(31, 35, 64, 0.85);
  color: #fff;
  font-weight: 700;
  font-size: 0.95rem;
  padding: 8px 14px;
  border-radius: 999px;
  pointer-events: none;
  z-index: 2;
}
.player-msg[hidden] { display: none; }

.shadow-overlay {
  position: absolute;
  top: 0; right: 0; bottom: 0; left: 0;
  background: rgba(79, 70, 229, 0.85);
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
}
.shadow-overlay[hidden] { display: none; }
.shadow-msg { font-size: 1.5rem; font-weight: 800; }
.shadow-ring { width: 70%; height: 12px; background: rgba(255,255,255,0.3); border-radius: 999px; overflow: hidden; }
.shadow-ring-fill { height: 100%; width: 100%; background: #fff; transition: width 0.1s linear; }
.shadow-sub { font-size: 1rem; font-weight: 600; opacity: 0.95; text-align: center; padding: 0 16px; min-height: 1.3em; }
.shadow-overlay.speaking { background: rgba(220, 38, 38, 0.82); }
.shadow-overlay.speaking .shadow-ring-fill { background: #fde047; transition: width 0.05s linear; }

.progress-row { display: flex; align-items: center; gap: 10px; }

/* 폰 세로에서의 배치 순서 (display:contents 라 부모 flex의 order가 적용됨) */
.video-wrap { order: 1; }
.progress-row { order: 2; }
.subtitle-box { order: 3; }
.vocab-panel { order: 4; }
.controls-main { order: 5; }
.controls-sub { order: 6; }
.script-panel { order: 7; }

/* ===== 단어 패널 ===== */
.vocab-panel {
  background: #fffbeb;
  border: 2px solid #fde68a;
  border-radius: var(--radius);
  padding: 8px 14px;
}
.vocab-panel[hidden] { display: none; }
.vocab-panel summary { font-weight: 700; cursor: pointer; padding: 6px 0; color: #92400e; }
.vocab-panel summary small { color: #b45309; font-weight: 400; }
.vocab-panel[open] summary small { display: none; }
.vocab-list { display: flex; flex-wrap: wrap; padding: 4px 0 6px; }
.vocab-item {
  background: #fff;
  border: 1px solid #fde68a;
  border-radius: 10px;
  padding: 6px 10px;
  margin: 4px 6px 4px 0;
  font-size: 1rem;
  line-height: 1.4;
}
.vocab-item b { color: var(--primary); margin-right: 6px; }
.vocab-item.phrase { background: #eef2ff; border-color: #c7d2fe; }
.vocab-item.phrase b { color: #4338ca; }
.cue-counter { font-size: 0.9rem; color: var(--muted); font-weight: 600; white-space: nowrap; min-width: 60px; }
.progress-bar { flex: 1; height: 8px; background: #dfe3f5; border-radius: 999px; overflow: hidden; }
.progress-fill { height: 100%; width: 0; background: var(--primary); transition: width 0.2s; }

.subtitle-box {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px 18px;
  min-height: 110px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 8px;
}
.sub-en { margin: 0; font-size: 1.5rem; font-weight: 700; line-height: 1.4; word-break: keep-all; }
.sub-ko { margin: 0; font-size: 1.1rem; color: var(--muted); line-height: 1.4; }
.sub-en[hidden], .sub-ko[hidden] { display: none; }
.sub-en .w { transition: color 0.1s, background 0.1s; border-radius: 4px; padding: 0 2px; }
.sub-en .w.on { color: #fff; background: var(--accent); }
.sub-en .w.done { color: var(--primary); }

.controls-main { display: flex; justify-content: center; align-items: center; padding: 6px 0; }
.controls-main > .btn { margin: 0 11px; }
.controls-sub { display: flex; flex-wrap: wrap; justify-content: center; }
.controls-sub > .btn { margin: 3px; }

.script-panel {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 10px 14px;
}
.script-panel summary { font-weight: 700; cursor: pointer; padding: 6px 0; }
.script-list { list-style: none; margin: 8px 0 0; padding: 0; max-height: 40vh; overflow-y: auto; position: relative; }
.script-item { padding: 10px 12px; border-radius: 10px; cursor: pointer; line-height: 1.4; }
.script-item:active { background: #eef0f7; }
.script-item.active { background: #eef2ff; border-left: 4px solid var(--primary); }
.script-item.star .en::before { content: '⭐ '; }
.script-item .en { font-weight: 600; }
.script-item .ko { color: var(--muted); font-size: 0.9rem; }
/* EN/KO 토글을 목록에도 적용 */
.script-list.hide-en .script-item .en { display: none; }
.script-list.hide-ko .script-item .ko { display: none; }
/* 듣기 먼저: 아직 다 듣지 않은 문장의 영어는 목록에서도 가림 (공개된 문장은 revealed) */
.script-list.listen-first .script-item:not(.revealed) .en { display: none; }
.script-list.listen-first .script-item:not(.revealed) .ko::before { content: '👂 '; }

/* ===== 오늘의 목표 칩 ===== */
.goal-chip {
  background: #fff7ed;
  border: 2px solid #fdba74;
  color: #b45309;
  border-radius: 999px;
  padding: 4px 10px;
  font-weight: 700;
  font-size: 0.9rem;
  white-space: nowrap;
}
.goal-chip.reached { background: #ecfdf5; border-color: #6ee7b7; color: #047857; }
.goal-chip[hidden] { display: none; }

/* ===== 학습 기록 화면 ===== */
.stats-main { flex: 1; padding: 14px; display: flex; flex-direction: column; }
.stats-card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px 16px;
  margin-bottom: 12px;
}
.stats-card h2 { margin: 0 0 10px; font-size: 1.05rem; }
.stats-summary { display: flex; flex-wrap: wrap; }
.stats-kpi { flex: 1 1 110px; margin: 4px 8px 4px 0; }
.stats-kpi .v { font-size: 1.4rem; font-weight: 800; color: var(--primary); }
.stats-kpi .l { font-size: 0.8rem; color: var(--muted); }
.stats-bars { display: flex; align-items: flex-end; height: 90px; margin-top: 10px; }
.stats-bar { flex: 1; margin: 0 3px; display: flex; flex-direction: column; align-items: center; justify-content: flex-end; height: 100%; }
.stats-bar .fill { width: 100%; background: var(--primary); border-radius: 6px 6px 0 0; min-height: 2px; }
.stats-bar.today .fill { background: var(--accent); }
.stats-bar .d { font-size: 0.75rem; color: var(--muted); margin-top: 4px; }
.stats-bar .m { font-size: 0.7rem; color: var(--text); }
.stats-row { display: flex; align-items: center; padding: 8px 0; border-top: 1px solid var(--border); }
.stats-row:first-of-type { border-top: none; }
.stats-row .name { flex: 1; min-width: 0; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.stats-row .meta { color: var(--muted); font-size: 0.85rem; white-space: nowrap; margin-left: 8px; }
.stats-progress { height: 10px; background: #dfe3f5; border-radius: 999px; overflow: hidden; margin: 6px 0 2px; }
.stats-progress .fill { height: 100%; background: var(--ok); }
.stats-item { display: block; }
.stats-hard { padding: 8px 0; border-top: 1px solid var(--border); cursor: pointer; }
.stats-hard .en { font-weight: 600; }
.stats-hard .ko { color: var(--muted); font-size: 0.85rem; }
.stats-hard .why { font-size: 0.8rem; color: #b45309; margin-top: 2px; }
.stats-hard:active { background: #eef0f7; }
.stats-empty { color: var(--muted); font-size: 0.9rem; }
.stats-chip { display: inline-block; background: #eef2ff; color: var(--primary); border-radius: 8px; padding: 3px 8px; margin: 3px 4px 3px 0; font-size: 0.9rem; }
.stats-chip small { color: var(--muted); margin-left: 4px; }
.topbar label.btn { display: inline-flex; align-items: center; }

/* ===== 새 버전 안내 ===== */
.update-toast {
  position: fixed;
  left: 50%;
  bottom: calc(16px + var(--safe-bottom));
  transform: translateX(-50%);
  background: var(--text);
  color: #fff;
  border-radius: 999px;
  padding: 8px 8px 8px 18px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 600;
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
  z-index: 90;
}
.update-toast[hidden] { display: none; }
.update-toast .btn { min-height: 36px; padding: 6px 14px; border-radius: 999px; }

/* ===== 로딩 오버레이 ===== */
.loading {
  position: fixed;
  top: 0; right: 0; bottom: 0; left: 0;
  background: rgba(245, 247, 255, 0.85);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}
.loading[hidden] { display: none; }
.loading-box {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 24px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  font-weight: 700;
}
.loading-spinner {
  width: 40px;
  height: 40px;
  border: 5px solid #dfe3f5;
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ===== 가로 모드 (태블릿/PC): 왼쪽 영상+진행바, 오른쪽 자막+조작+전체 대사 ===== */
@media (min-width: 900px) and (orientation: landscape) {
  .player-body { flex-direction: row; align-items: flex-start; gap: 16px; }
  .player-left { display: flex; flex-direction: column; gap: 10px; flex: 1.4; min-width: 0; }
  .player-right { display: flex; flex-direction: column; gap: 10px; flex: 1; min-width: 320px; }
  .video-wrap { max-height: calc(100vh - 150px); }
  .controls-main { padding: 0; }
  /* 전체 대사가 남는 높이를 채우도록 (details는 flex 자식 크기 계산이 불안정해서 vh로) */
  .script-list { max-height: calc(100vh - 470px); min-height: 180px; }
}