/* ===== EchoDrill — 파스텔 테마 ===== */
:root {
  --sidebar-w: 224px;
  --ink: #4b4257;          /* 부드러운 진보라빛 잉크 */
  --ink-soft: #8f84a3;
  --line: #f0e5f2;
  --card: #ffffff;
  --accent: #a78bfa;       /* 파스텔 바이올렛 */
  --accent-deep: #8b6cf0;
  --accent-soft: #f3edff;
  --pink: #f9a8c4;
  --pink-soft: #ffe3ee;
  --mint-soft: #e2f7ef;
  --rec: #f87ba2;          /* 파스텔 핑크 (녹음) */
  --ok: #3fb27f;
  --warn: #e8a13c;
  --bad: #ef6a8b;
  --radius: 18px;
  --shadow: 0 6px 20px rgba(167, 139, 250, .13);
}

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

html, body { height: 100%; }
body {
  font-family: "Pretendard", "Malgun Gothic", "Apple SD Gothic Neo", system-ui, sans-serif;
  background: linear-gradient(160deg, #fdf1f6 0%, #f4eefc 45%, #ecf4fc 100%) fixed;
  color: var(--ink);
  display: flex;
}

button { font-family: inherit; cursor: pointer; }
.hidden { display: none !important; }

/* ----- 사이드바 ----- */
.sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  height: 100vh;
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, .72);
  backdrop-filter: blur(10px);
  border-right: 1px solid rgba(255, 255, 255, .9);
  color: var(--ink);
  display: flex;
  flex-direction: column;
  padding: 22px 14px;
}
.logo {
  font-size: 20px;
  font-weight: 800;
  padding: 6px 12px 24px;
  letter-spacing: -.3px;
  background: linear-gradient(90deg, #8b6cf0, #f472b6);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.sidebar nav { display: flex; flex-direction: column; gap: 6px; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 15px;
  font-weight: 600;
  transition: background .15s, color .15s;
}
.nav-item:hover { background: var(--accent-soft); color: var(--accent-deep); }
.nav-item.active {
  background: linear-gradient(120deg, #a78bfa, #c4a6fb);
  color: #fff;
  box-shadow: 0 6px 16px rgba(167, 139, 250, .35);
}
.badge {
  margin-left: auto;
  background: var(--pink);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  border-radius: 999px;
  padding: 2px 8px;
}
.sidebar-foot {
  margin-top: auto;
  font-size: 12px;
  color: #b3a8c4;
  padding: 12px;
  line-height: 1.7;
}

/* ----- 본문 ----- */
main {
  flex: 1;
  min-width: 0;
  padding: 34px clamp(16px, 4vw, 48px) 90px;
  max-width: 1060px;
}
main > section { display: none; }
main > section.active { display: block; animation: fadein .2s ease; }
@keyframes fadein { from { opacity: 0; transform: translateY(5px); } to { opacity: 1; } }

h1 { font-size: 26px; margin-bottom: 22px; letter-spacing: -.4px; }
h2 { font-size: 17px; margin-bottom: 14px; }

.banner {
  background: #fff7e8;
  border: 1px solid #fbd89b;
  color: #a16207;
  padding: 13px 18px;
  border-radius: 14px;
  margin-bottom: 18px;
  font-size: 14px;
}
.banner a { color: var(--accent-deep); font-weight: 700; }

/* ----- 학습: 입력 ----- */
.input-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 20px; }
.rec-btn {
  background: linear-gradient(120deg, #f87ba2, #fba0bd);
  color: #fff;
  border: none;
  font-size: 17px;
  font-weight: 800;
  padding: 15px 28px;
  border-radius: 999px;
  box-shadow: 0 8px 20px rgba(248, 123, 162, .4);
  transition: transform .12s;
}
.rec-btn:hover { transform: scale(1.04); }
.rec-btn.recording { background: linear-gradient(120deg, #ef5d8e, #f87ba2); animation: pulse 1.4s infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(248,123,162,.45); } 50% { box-shadow: 0 0 0 14px rgba(248,123,162,0); } }
.rec-btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }
.rec-time { font-variant-numeric: tabular-nums; font-size: 18px; font-weight: 800; color: var(--rec); }
.upload-btn {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 13px 20px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow);
  color: var(--ink-soft);
}
.upload-btn:hover { border-color: var(--accent); color: var(--accent-deep); }

.status {
  background: var(--accent-soft);
  color: var(--accent-deep);
  font-size: 14px;
  font-weight: 700;
  padding: 11px 18px;
  border-radius: 14px;
  margin-bottom: 16px;
}
.session-title { font-size: 13px; color: var(--ink-soft); margin-bottom: 14px; }
.empty { color: var(--ink-soft); text-align: center; padding: 70px 20px; line-height: 2.1; font-size: 15px; }

/* ----- 세그먼트 카드 ----- */
.seg-card {
  background: var(--card);
  border: 1px solid rgba(255,255,255,.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px 22px;
  margin-bottom: 16px;
}
.seg-body {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 22px;
  align-items: start;
}
.seg-en { font-size: 17px; line-height: 2.05; word-break: break-word; }
.seg-en .stress { font-size: 1.28em; font-weight: 800; color: #7c3aed; }
.seg-en .weak { opacity: .4; font-size: .92em; }
.reductions { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 6px; }
.reduction-chip {
  background: #fff1d9;
  color: #a16207;
  font-size: 12.5px;
  padding: 4px 11px;
  border-radius: 999px;
  cursor: help;
}
.seg-ko {
  font-size: 15px;
  color: var(--ink-soft);
  line-height: 1.85;
  border-left: 3px solid var(--pink-soft);
  padding-left: 14px;
}
.seg-ko.pending { color: #c3bad2; font-style: italic; }

.seg-controls {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 15px;
  padding-top: 13px;
  border-top: 1px dashed var(--line);
}
.seg-controls button, .seg-controls select {
  background: #faf7fd;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 13px;
  font-size: 13.5px;
  color: var(--ink);
}
.seg-controls button:hover { border-color: var(--accent); color: var(--accent-deep); background: var(--accent-soft); }
.seg-controls button.on { background: var(--accent); border-color: var(--accent); color: #fff; }
.seg-controls button.rec-on { background: var(--rec); border-color: var(--rec); color: #fff; animation: pulse 1.4s infinite; }

/* 발음 관련 */
.ipa { color: var(--ink-soft); font-size: .95em; margin: 0 2px; letter-spacing: .3px; }
.ipa.big { font-size: 19px; font-weight: 500; color: var(--ink-soft); margin-top: 8px; letter-spacing: .6px; }
.ipa-stress { color: var(--accent-deep); font-weight: 800; }
.sound-btn {
  background: none;
  border: none;
  font-size: 16px;
  padding: 0 2px;
  vertical-align: middle;
  transition: transform .1s;
}
.sound-btn:hover { transform: scale(1.2); }

/* 쉐도잉 영역 */
.seg-shadow {
  margin-top: 13px;
  background: linear-gradient(120deg, #faf6ff, #fdf3f8);
  border-radius: 14px;
  padding: 15px 17px;
  font-size: 14px;
}
.shadow-score { font-size: 30px; font-weight: 800; }
.shadow-score.good { color: var(--ok); }
.shadow-score.mid { color: var(--warn); }
.shadow-score.bad { color: var(--bad); }
.shadow-best { font-size: 12px; color: var(--ink-soft); margin-left: 8px; }
.shadow-feedback { margin: 6px 0 10px; color: var(--ink); }
.shadow-recognized { font-size: 12.5px; color: var(--ink-soft); margin-bottom: 10px; }
.seg-shadow .btns { display: flex; gap: 8px; flex-wrap: wrap; }
.seg-shadow .btns button {
  background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 7px 13px; font-size: 13px;
}
.seg-shadow .btns button:hover { border-color: var(--accent); color: var(--accent-deep); }

/* 상세(단어·문법) */
.seg-detail { margin-top: 13px; background: linear-gradient(120deg, #faf6ff, #f3f9f6); border-radius: 14px; padding: 15px 17px; font-size: 14px; }
.seg-detail h4 { font-size: 13px; color: var(--ink-soft); margin: 10px 0 6px; }
.seg-detail h4:first-child { margin-top: 0; }
.vocab-item { display: flex; align-items: baseline; gap: 8px; padding: 4px 0; flex-wrap: wrap; }
.vocab-item b { font-size: 15px; }
.vocab-item .ex { color: var(--ink-soft); font-size: 13px; font-style: italic; }
.vocab-add {
  background: var(--accent-soft); color: var(--accent-deep); border: none; border-radius: 8px;
  font-size: 12px; font-weight: 700; padding: 3px 9px;
}
.vocab-add:disabled { opacity: .45; }
.grammar-list { padding-left: 18px; line-height: 1.9; }

/* ----- 라이브러리 ----- */
.lib-item {
  background: var(--card);
  border: 1px solid rgba(255,255,255,.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 17px 20px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}
.lib-info { flex: 1; min-width: 200px; cursor: pointer; }
.lib-title { font-weight: 700; font-size: 15px; margin-bottom: 4px; }
.lib-meta { font-size: 12.5px; color: var(--ink-soft); }
.lib-item button {
  background: #faf7fd; border: 1px solid var(--line); border-radius: 10px; padding: 8px 13px; font-size: 13px; color: var(--ink);
}
.lib-item button:hover { border-color: var(--accent); color: var(--accent-deep); }
.lib-item button.danger { color: var(--bad); }

/* ----- 복습 ----- */
.tabs { display: flex; gap: 8px; margin-bottom: 20px; }
.tab {
  background: rgba(255,255,255,.75); border: 1px solid var(--line); border-radius: 999px;
  padding: 10px 20px; font-size: 14px; color: var(--ink-soft); font-weight: 600;
}
.tab.active {
  background: linear-gradient(120deg, #a78bfa, #c4a6fb);
  border-color: transparent; color: #fff;
  box-shadow: 0 6px 16px rgba(167, 139, 250, .3);
}

.review-summary { font-size: 14px; color: var(--ink-soft); margin-bottom: 14px; line-height: 1.7; }
.primary {
  background: linear-gradient(120deg, #a78bfa, #c4a6fb);
  color: #fff; border: none; border-radius: 14px;
  padding: 13px 24px; font-size: 15px; font-weight: 800;
  box-shadow: 0 8px 20px rgba(167, 139, 250, .35);
}
.primary:hover { filter: brightness(1.06); }
.primary:disabled { opacity: .5; cursor: not-allowed; }

.review-card {
  background: var(--card);
  border: 1px solid rgba(255,255,255,.9);
  border-radius: 22px;
  box-shadow: var(--shadow);
  padding: 38px 30px;
  text-align: center;
  max-width: 640px;
  margin: 0 auto 20px;
}
.review-progress { font-size: 12.5px; color: var(--ink-soft); margin-bottom: 16px; }
.review-front { font-size: 27px; font-weight: 800; margin-bottom: 18px; line-height: 1.6; }
.review-back { font-size: 16px; line-height: 1.9; margin-bottom: 20px; }
.review-back .src { font-size: 13.5px; color: var(--ink-soft); font-style: italic; }
.review-card .btns { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }
.review-card .btns button { border-radius: 14px; padding: 12px 22px; font-size: 15px; font-weight: 700; border: none; }
.btn-know { background: var(--mint-soft); color: var(--ok); }
.btn-dontknow { background: var(--pink-soft); color: var(--bad); }
.btn-flip, .btn-next { background: var(--accent-soft); color: var(--accent-deep); }
.btn-mic { background: linear-gradient(120deg, #f87ba2, #fba0bd); color: #fff; box-shadow: 0 8px 20px rgba(248,123,162,.35); }
.btn-mic.rec-on { animation: pulse 1.4s infinite; }

.verdict { font-size: 34px; font-weight: 800; margin-bottom: 8px; }
.verdict.ok { color: var(--ok); }
.verdict.no { color: var(--bad); }
.diff-line { font-size: 18px; line-height: 2; margin: 10px 0; }
.diff-line .miss { color: var(--bad); font-weight: 800; text-decoration: underline wavy; }
.heard { font-size: 13.5px; color: var(--ink-soft); }

/* 딕테이션 */
.dic-line { line-height: 2.4; }
.dic-input {
  border: none;
  border-bottom: 2px solid var(--accent);
  background: var(--accent-soft);
  border-radius: 8px 8px 0 0;
  padding: 3px 6px;
  font-size: 17px;
  font-family: inherit;
  text-align: center;
  color: var(--ink);
  width: auto;
}
.dic-input:focus { outline: none; background: #ece2ff; }
.dic-word.ok { color: var(--ok); font-weight: 800; }
.dic-word.bad { color: var(--bad); font-weight: 800; text-decoration: underline wavy; }
.typed { color: var(--ink-soft); font-size: 12px; }

.deck-list { margin-top: 28px; }
.deck-item {
  background: rgba(255,255,255,.85); border: 1px solid var(--line); border-radius: 14px;
  padding: 13px 17px; margin-bottom: 9px; display: flex; align-items: center; gap: 12px; font-size: 14px;
}
.deck-item .txt { flex: 1; min-width: 0; line-height: 1.7; }
.deck-item .due { font-size: 12px; color: var(--ink-soft); white-space: nowrap; }
.deck-item > button { background: none; border: none; color: var(--bad); font-size: 13px; }

/* ----- 설정 ----- */
.settings-card {
  background: var(--card); border: 1px solid rgba(255,255,255,.9); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: 24px 26px; margin-bottom: 18px; max-width: 640px;
}
.field { display: block; margin-bottom: 15px; }
.field span { display: block; font-size: 14px; font-weight: 700; margin-bottom: 6px; }
.field small { color: var(--ink-soft); font-weight: 400; }
.field input, .field select {
  width: 100%; padding: 12px 15px; border: 1px solid var(--line); border-radius: 12px;
  font-size: 14px; font-family: inherit; background: #fdfbff; color: var(--ink);
}
.field input:focus, .field select:focus { outline: 3px solid var(--accent-soft); border-color: var(--accent); }
.note { font-size: 12.5px; color: var(--ink-soft); line-height: 1.8; margin-top: 12px; }
.danger { background: var(--pink-soft); color: var(--bad); border: none; border-radius: 12px; padding: 11px 18px; font-size: 14px; font-weight: 700; }

/* ----- 토스트 ----- */
.toast {
  position: fixed;
  left: 50%;
  bottom: 34px;
  transform: translateX(-50%);
  background: #5a4d73;
  color: #fff;
  padding: 13px 24px;
  border-radius: 999px;
  font-size: 14px;
  box-shadow: 0 10px 28px rgba(90, 77, 115, .4);
  z-index: 100;
  animation: fadein .2s ease;
}

/* ----- 모바일: 사이드바 → 하단 탭바 ----- */
@media (max-width: 768px) {
  body { flex-direction: column; }
  .sidebar {
    width: 100%;
    min-width: 0;
    height: auto;
    position: fixed;
    bottom: 0;
    top: auto;
    left: 0;
    flex-direction: row;
    align-items: center;
    padding: 6px 8px;
    z-index: 50;
    border-right: none;
    border-top: 1px solid rgba(255,255,255,.9);
    background: rgba(255, 255, 255, .92);
  }
  .logo, .sidebar-foot { display: none; }
  .sidebar nav { flex-direction: row; width: 100%; justify-content: space-around; }
  .nav-item { flex-direction: column; gap: 2px; padding: 8px 10px; font-size: 11px; }
  .nav-icon { font-size: 20px; }
  .badge { position: absolute; margin: 0; transform: translate(16px, -6px); }
  main { padding-bottom: 120px; }
  .seg-body { grid-template-columns: 1fr; gap: 10px; }
}