:root {
  /* 에코영어 — 딥 인디고 바탕에 라임 강조 */
  --bg: #14122E;          /* 배경 */
  --panel: #1E1B44;       /* 카드·바 */
  --panel-2: #2A2657;     /* 한 단계 밝은 면 */
  --line: #3A3570;        /* 테두리 */
  --text: #F0EFFA;
  --text-dim: #9B97C4;
  --accent: #A3E635;      /* 라임 — 동작·브랜드 */
  --accent-dark: #86C81F;
  --on-accent: #1B2405;   /* 라임 위에 얹는 글자색 */
  --danger: #F87171;
  --kr: #A5B4FC;          /* 한국어 — 인디고 계열 */
  --en: #FFD86B;          /* 영어 — 학습 내용 */
  --radius: 14px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "Pretendard", "Noto Sans KR", -apple-system, "Segoe UI", sans-serif;
  overscroll-behavior: none;
}

body {
  display: flex;
  flex-direction: column;
  max-width: 640px;
  margin: 0 auto;
}

/* ── 상단바 ─────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 10px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.logo { width: 40px; height: 40px; border-radius: 10px; display: block; }
.brand h1 { font-size: 20px; letter-spacing: -0.5px; }
.tagline { font-size: 12px; color: var(--text-dim); }
.icon-btn {
  background: var(--panel);
  border: none;
  color: var(--text);
  font-size: 18px;
  width: 40px; height: 40px;
  border-radius: 50%;
  cursor: pointer;
}

/* ── 메인 ─────────────────────────── */
main {
  flex: 1;
  display: flex;
  flex-direction: column;
  padding: 0 16px;
  min-height: 0;
}

.status-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 4px 14px 10px;
  font-size: 13px;
  color: var(--text-dim);
  text-align: center;
}
.dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}
.dot.idle { background: #5a6a78; }
.dot.listening { background: var(--accent); animation: pulse 1.2s infinite; }
.dot.speaking { background: var(--en); animation: pulse 1.2s infinite; }
.dot.error { background: var(--danger); }
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.interim-box {
  margin-top: 10px;
  background: var(--panel-2);
  border-radius: var(--radius);
  padding: 12px 14px;
  border-left: 3px solid var(--kr);
}
.interim-label { font-size: 11px; color: var(--text-dim); }
#interimText { font-size: 16px; margin-top: 4px; color: var(--kr); }

/* ── 대화 로그 ─────────────────────── */
.log {
  flex: 1;
  overflow-y: auto;
  margin-top: 12px;
  padding-bottom: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.empty-hint {
  margin: auto;
  text-align: center;
  padding: 0 24px;
}
.empty-icon { font-size: 52px; opacity: 0.9; }
.empty-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin-top: 16px;
}
.empty-desc {
  font-size: 14px;
  color: var(--text-dim);
  line-height: 1.7;
  margin-top: 8px;
}
.topbar-actions { display: flex; gap: 8px; }
.icon-btn[hidden] { display: none; }
.icon-btn img.avatar {
  width: 100%; height: 100%;
  border-radius: 50%;
  object-fit: cover;
}

.account-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}
.user-photo {
  width: 46px; height: 46px;
  border-radius: 50%;
  flex-shrink: 0;
}
.user-name { font-size: 16px; font-weight: 600; }
.user-email { font-size: 13px; color: var(--text-dim); margin-top: 2px; }
#loggedIn .ghost-btn { margin-top: 10px; margin-right: 8px; }
#loggedOut .apply-btn { margin-top: 14px; }

/* ── 주요 기능 바로가기 ─────────────────── */
.quick-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}
.quick-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: var(--radius);
  padding: 12px 8px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}
.quick-btn .q-icon { font-size: 17px; }
.quick-btn .q-badge {
  background: var(--accent);
  color: var(--on-accent);
  border-radius: 999px;
  min-width: 21px;
  padding: 2px 7px;
  font-size: 12px;
  font-weight: 800;
}
.quick-btn .q-badge[hidden] { display: none; }

/* ── 학습 패널 ─────────────────────────── */
.stat-row {
  display: flex;
  gap: 8px;
  margin: 4px 0 14px;
}
.stat-box {
  flex: 1;
  background: var(--panel-2);
  border-radius: 12px;
  padding: 12px 6px;
  text-align: center;
}
.stat-num { font-size: 22px; font-weight: 700; color: var(--accent); }
.stat-label { font-size: 11px; color: var(--text-dim); margin-top: 3px; }
.learn-sub { display: flex; gap: 8px; margin-top: 10px; }
.learn-sub .ghost-btn { flex: 1; }

.report-row {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 2px;
  border-bottom: 1px solid var(--panel-2);
  font-size: 14px;
}
.report-row .r-label { color: var(--text-dim); }
.report-row .r-value { font-weight: 600; }
.report-top { font-size: 13px; padding: 8px 2px; border-bottom: 1px solid var(--panel-2); }
.report-top .t-en { color: var(--en); }
.report-top .t-kr { color: var(--kr); font-size: 12px; margin-top: 2px; }
.report-top .t-count { color: var(--accent); font-size: 12px; }

/* ── 연습 화면 ─────────────────────────── */
.practice-panel[hidden] { display: none; }
.practice-panel {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 20;
  display: flex;
  justify-content: center;
}
.practice-inner {
  width: 100%;
  max-width: 640px;
  display: flex;
  flex-direction: column;
  padding: 14px 18px calc(20px + env(safe-area-inset-bottom));
}
.practice-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.p-progress { font-size: 13px; color: var(--text-dim); }
.practice-body {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: 12px;
  padding: 20px 0;
  min-height: 0;
  overflow-y: auto;
}
.p-kr { font-size: 20px; color: var(--kr); font-weight: 600; }
.p-en { font-size: 24px; color: var(--en); font-weight: 600; line-height: 1.4; }
.p-en.hidden-answer { color: transparent; background: var(--panel-2); border-radius: 8px; }
.p-heard {
  font-size: 15px;
  color: var(--text-dim);
  background: var(--panel);
  border-radius: 10px;
  padding: 10px 14px;
  max-width: 100%;
}
.p-heard b { color: var(--text); }
.p-en .hit { color: var(--accent); }
.p-en .miss { color: var(--danger); }
.p-score { font-size: 40px; font-weight: 800; }
.p-score.good { color: var(--accent); }
.p-score.mid { color: var(--en); }
.p-score.bad { color: var(--danger); }
.p-guide { font-size: 13px; color: var(--text-dim); }
.practice-actions {
  display: flex;
  gap: 10px;
}
.practice-actions button { flex: 1; padding: 15px; font-size: 15px; }
.practice-actions .apply-btn.listening {
  background: var(--danger);
  color: #fff;
}

.inapp-notice[hidden] { display: none; }
.inapp-notice {
  background: #3a2418;
  border: 1px solid #7a4a2a;
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-top: 10px;
}
.inapp-title { font-size: 15px; font-weight: 700; color: #ffb86b; }
.inapp-desc { font-size: 13px; color: var(--text); line-height: 1.6; margin-top: 6px; }
.inapp-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}
.inapp-actions .apply-btn { flex: 1; padding: 11px; }
.inapp-actions .ghost-btn { flex-shrink: 0; }

.date-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
  padding: 8px 14px;
  background: var(--panel);
  border-radius: var(--radius);
  font-size: 13px;
}
.date-summary {
  flex: 1;
  min-width: 0;
  text-align: left;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 14px;
  cursor: pointer;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.date-summary::after {
  content: " ▾";
  color: var(--text-dim);
}

/* 아래 날짜 목록과 체크박스 열을 맞춘다 */
.date-row-all {
  margin-top: 6px;
  font-weight: 600;
  border-bottom: 2px solid var(--panel-2);
}
.date-list {
  max-height: 40vh;
  overflow-y: auto;
  margin: 0 0 14px;
}
.date-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 4px;
  border-bottom: 1px solid var(--panel-2);
  font-size: 15px;
  cursor: pointer;
}
.date-row input[type="checkbox"] {
  width: 20px; height: 20px;
  accent-color: var(--accent);
  flex-shrink: 0;
}
.apply-btn {
  width: 100%;
  background: var(--accent);
  color: var(--on-accent);
  border: none;
  border-radius: 10px;
  padding: 13px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}

.digest-play-row {
  display: flex;
  align-items: stretch;
  gap: 8px;
}
.digest-play-row .apply-btn { flex: 1; }
.digest-play-row .mini-btn { height: auto; }

.digest-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 2px;
  border-bottom: 1px solid var(--panel-2);
}
.digest-row .txt { flex: 1; min-width: 0; }
.digest-row .d-en { color: var(--en); font-size: 15px; font-weight: 500; }
.digest-row .d-kr { color: var(--kr); font-size: 13px; margin-top: 3px; }
.digest-count {
  background: var(--panel-2);
  color: var(--accent);
  border-radius: 10px;
  padding: 3px 9px;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}
.digest-empty { color: var(--text-dim); font-size: 13px; padding: 8px 2px; }

.day-head {
  margin-top: 6px;
  padding: 7px 14px;
  background: var(--panel-2);
  border-radius: 10px;
  font-size: 13px;
  color: var(--text-dim);
  font-weight: 600;
}

.log-toolbar[hidden] { display: none; } /* display:flex가 hidden 속성을 덮어쓰지 않도록 */
.log-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 10px;
  padding: 9px 14px;
  background: var(--panel);
  border-radius: var(--radius);
  font-size: 13px;
  color: var(--text-dim);
}
.log-toolbar .selectall {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}
.log-toolbar input[type="checkbox"] {
  width: 18px; height: 18px;
  accent-color: var(--accent);
}
.sel-count { color: var(--accent); }
.toolbar-actions {
  display: flex;
  gap: 6px;
  margin-left: auto;
}
.mini-btn {
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 8px;
  width: 38px; height: 34px;
  font-size: 15px;
  color: var(--text);
  cursor: pointer;
}
.mini-btn.off { opacity: 0.35; }
.mode-btn {
  width: auto;
  padding: 0 10px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}
.mini-btn.active-play {
  background: var(--accent);
  border-color: var(--accent);
}

.entry.playing { outline: 2px solid var(--accent); }

/* 문장 카드는 주변 UI보다 밝고, 왼쪽 색 띠로 주인공임을 드러낸다 */
.entry {
  display: flex;
  gap: 10px;
  background: var(--panel-2);
  border-left: 3px solid var(--en);
  border-radius: 10px var(--radius) var(--radius) 10px;
  padding: 13px 14px;
  animation: slideIn 0.25s ease;
}
.entry .sel {
  width: 18px; height: 18px;
  margin-top: 3px;
  flex-shrink: 0;
  accent-color: var(--accent);
}
.entry .body { flex: 1; min-width: 0; }
@keyframes slideIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
/* 영어 문장이 이 앱의 주인공 — 한국어보다 확실히 크고 굵게 */
.entry .kr { font-size: 13px; color: var(--kr); opacity: 0.85; margin-bottom: 5px; }
.entry .en { font-size: 18px; color: var(--en); font-weight: 600; line-height: 1.4; letter-spacing: -0.2px; }
.entry .en.pending { font-size: 14px; color: var(--text-dim); font-weight: 400; font-style: italic; }
.entry .replay {
  background: none; border: none;
  color: var(--text-dim);
  font-size: 14px;
  cursor: pointer;
  float: right;
  padding: 2px 4px;
}

/* ── 하단 컨트롤 ───────────────────── */
.controls {
  padding: 6px 16px calc(18px + env(safe-area-inset-bottom));
}
.controls-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
}
/* 시작 버튼을 화면 가운데에 두기 위한 빈 자리 */
.ctrl-spacer { width: 52px; flex-shrink: 0; }
.main-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  width: 92px; height: 92px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: var(--on-accent);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 6px 24px rgba(163, 230, 53, 0.30);
  transition: background 0.2s, box-shadow 0.2s;
}
.main-btn #mainBtnIcon { font-size: 26px; }
.main-btn.active {
  background: var(--danger);
  color: #fff;
  box-shadow: 0 6px 24px rgba(248, 113, 113, 0.35);
}
.sub-btn {
  width: 52px; height: 52px;
  border-radius: 50%;
  border: none;
  background: var(--panel);
  color: var(--text);
  font-size: 20px;
  cursor: pointer;
}
.sub-btn.off { opacity: 0.4; }

/* ── 설정 패널 ─────────────────────── */
.settings-panel {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: flex-end;
  z-index: 10;
}
.settings-panel[hidden] { display: none; }
.settings-inner {
  background: var(--panel);
  width: 100%;
  max-width: 640px;
  max-height: 85vh;
  overflow-y: auto;
  border-radius: 20px 20px 0 0;
  padding: 18px 20px calc(24px + env(safe-area-inset-bottom));
}
.settings-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.settings-head h2 { font-size: 18px; }
.settings-inner section {
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--panel-2);
}
.settings-inner h3 {
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 10px;
  font-size: 14px;
}
.row select, .row input[type="password"], .row input[type="text"] {
  flex: 1;
  min-width: 0;
  background: var(--panel-2);
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
}
.row input[type="range"] { flex: 1; accent-color: var(--accent); }
.row.toggle small { color: var(--text-dim); }
.row.toggle input[type="checkbox"] {
  width: 22px; height: 22px;
  accent-color: var(--accent);
  flex-shrink: 0;
}
.hint { font-size: 12px; color: var(--text-dim); line-height: 1.6; }
/* 실제로 문제가 있을 때만 눈에 띄게 */
.hint.warn { color: var(--en); }
.ghost-btn {
  background: none;
  border: 1px solid var(--line);
  color: var(--text);
  border-radius: 8px;
  padding: 9px 14px;
  font-size: 13px;
  cursor: pointer;
}