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

:root {
  --bg-primary: #f5f6fa;
  --bg-secondary: #fff;
  --text-primary: #1a1a2e;
  --text-secondary: #555;
  --text-light: #707070;
  --border-color: #e2e5ef;
  --shadow: rgba(0,0,0,0.06);
  --primary-color: #4a4a4f;
  --primary-light: rgba(74,74,79,0.08);
  --primary-glow: rgba(74,74,79,0.2);
  --gradient-primary: linear-gradient(135deg, #6b6b70, #1c1c1e);
  --btn-gradient: linear-gradient(135deg, #6b6b70, #1c1c1e);
  --danger-color: #ef4444;
  --danger-light: rgba(239,68,68,0.08);
  --success-color: #10b981;
  --transition: cubic-bezier(0.4, 0, 0.2, 1);
  --type-correct-fg: #047857;
  --type-incorrect-fg: #b91c1c;
  --type-correct-bg: rgba(16,185,129,0.12);
  --type-correct-border: rgba(16,185,129,0.45);
  --type-incorrect-bg: rgba(239,68,68,0.14);
}

html.dark-mode,
body.dark-mode {
  --bg-primary: #18181b;
  --bg-secondary: #1f1f23;
  --btn-gradient: linear-gradient(135deg, #b0b0b5, #4a4a4f);
  --gradient-primary: linear-gradient(135deg, #b0b0b5, #4a4a4f);
  --text-primary: #eaeaf2;
  --text-secondary: #a0a0b8;
  --text-light: #8686ab;
  --border-color: #2e2e33;
  --shadow: rgba(0,0,0,0.35);
  --primary-color: #b0b0b5;
  --primary-light: rgba(176,176,181,0.12);
  --primary-glow: rgba(176,176,181,0.3);
  --danger-light: rgba(239,68,68,0.12);
  --success-color: #34d399;
  --danger-color: #f87171;
  --type-correct-fg: #34d399;
  --type-incorrect-fg: #fca5a5;
  --type-correct-bg: rgba(52,211,153,0.18);
  --type-correct-border: rgba(52,211,153,0.5);
  --type-incorrect-bg: rgba(248,113,113,0.22);
}

body {
  font-family: 'Inter', 'Segoe UI', -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

body :where(*) {
  transition: background-color 0.3s ease, border-color 0.3s ease, color 0.3s ease;
}

.container {
  max-width: 700px;
  margin: 0 auto;
  padding: 36px 24px 60px;
  position: relative;
  z-index: 1;
}

/* ── Header (기존 도구 페이지와 동일한 구조) ── */
header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 32px;
  gap: 20px;
}

.header-left { flex: 1; }

.home-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.82rem;
  color: #4a4a4f;
  text-decoration: none;
  margin-bottom: 10px;
  font-weight: 600;
  padding: 4px 12px 4px 8px;
  border-radius: 20px;
  background: var(--primary-light);
  transition: all 0.25s var(--transition);
}

html.dark-mode .home-link,
body.dark-mode .home-link {
  color: #b0b0b5;
}

.home-link-icon { flex-shrink: 0; border-radius: 4px; }

.home-link:hover {
  background: var(--primary-glow);
  transform: translateX(-3px);
}

.header-left h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 6px;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.subtitle {
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 400;
}

.header-right { display: flex; align-items: center; gap: 10px; }

.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1.5px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-primary);
  cursor: pointer;
  transition: all 0.25s var(--transition);
  color: var(--text-secondary);
}

.icon-btn:hover {
  border-color: var(--primary-color);
  background: var(--primary-light);
  color: var(--primary-color);
}

.theme-icon { width: 18px; height: 18px; }

.lang-select { position: relative; }

.lang-toggle {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 160px;
  padding: 6px;
  border: 1.5px solid var(--border-color);
  border-radius: 12px;
  background: var(--bg-secondary);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 8px 24px var(--shadow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: all 0.2s var(--transition);
  z-index: 200;
}

.lang-select.open .lang-toggle {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 9px 10px;
  border-radius: 8px;
  transition: all 0.2s var(--transition);
}

.lang-option:hover { background: var(--primary-light); color: var(--primary-color); }
.lang-option.active { color: var(--primary-color); }
.lang-option .lang-check { opacity: 0; color: var(--primary-color); }
.lang-option.active .lang-check { opacity: 1; }

/* ── 문장 표시 ── */
.typing-prompt {
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 1.05rem;
  line-height: 2;
  letter-spacing: 0.2px;
  padding: 18px 16px;
  border-radius: 12px;
  background: var(--bg-primary);
  border: 1.5px solid var(--border-color);
  /* 긴 문장이 페이지를 밀지 않도록 단어 단위로 접는다 */
  word-break: break-word;
  overflow-wrap: anywhere;
  user-select: none;
  margin-bottom: 16px;
}

/* 아직 입력하지 않은 글자 */
.typing-prompt .ch { color: var(--text-light); transition: none; }
.typing-prompt .ch.correct { color: var(--type-correct-fg); background: var(--type-correct-bg); }
.typing-prompt .ch.incorrect {
  color: var(--type-incorrect-fg);
  background: var(--type-incorrect-bg);
  border-radius: 2px;
}
/* 공백에 오타가 나면 색만으로는 안 보이므로 밑줄로 표시한다 */
.typing-prompt .ch.incorrect.space { text-decoration: underline wavy; }

/* 지금 입력할 차례인 글자 */
.typing-prompt .ch.current {
  border-radius: 2px;
  box-shadow: inset 0 -2px 0 0 var(--primary-color);
  color: var(--text-primary);
}

/* 명언 문장의 출처 캡션 — 표시 전용이며 입력/비교 로직과는 무관하다.
   문장 아래 붙는 인용 출처처럼 보이도록 작게, 오른쪽으로 붙인다.
   출처가 없는 일반 문장은 display:none 이라 레이아웃에 아무 영향이 없다. */
.typing-source {
  margin: -10px 4px 16px 0;
  text-align: right;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  user-select: none;
}

/* ── 입력창 ── */
.typing-input-wrap {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.typing-input-wrap label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.3px;
}

.typing-input {
  width: 100%;
  min-height: 96px;
  padding: 12px 14px;
  border: 1.5px solid var(--border-color);
  border-radius: 12px;
  font-family: var(--font-mono, ui-monospace, monospace);
  /* 16px 미만이면 iOS 사파리가 포커스 시 화면을 확대한다 */
  font-size: 16px;
  line-height: 1.7;
  background: var(--bg-primary);
  color: var(--text-primary);
  outline: none;
  resize: vertical;
  transition: border-color 0.2s;
}

.typing-input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px var(--primary-light);
}

.typing-input:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.typing-btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 16px;
}

.typing-btn-row .action-btn,
.typing-btn-row .btn-primary {
  flex: 1;
  min-width: 120px;
  text-align: center;
  justify-content: center;
}

/* ── 실시간 지표 / 결과 ── */
.typing-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 16px;
}

.typing-stat {
  padding: 14px 10px;
  border-radius: 12px;
  border: 1.5px solid var(--border-color);
  background: var(--bg-primary);
  text-align: center;
}

.typing-stat-value {
  display: block;
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}

.typing-stat-label {
  display: block;
  margin-top: 2px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  color: var(--text-secondary);
}

/* WPM ↔ 타수 중 이 칸에서 "작게" 보여주는 반대쪽 지표.
   빈 문자열일 때(초기 렌더 이전 아주 짧은 순간)를 대비해 min-height 로 자리를
   미리 잡아둔다 — 텍스트가 채워지는 순간 카드 높이가 들썩이지 않게 한다. */
.typing-stat-sub {
  display: block;
  margin-top: 4px;
  min-height: 1em;
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--text-light);
  font-variant-numeric: tabular-nums;
}

/* 완료 시 강조 */
.typing-stats.done .typing-stat { border-color: var(--type-correct-border); }
.typing-stats.done .typing-stat-value { color: var(--type-correct-fg); }

.typing-done-msg {
  padding: 12px 16px;
  border-radius: 12px;
  background: var(--type-correct-bg);
  border: 1.5px solid var(--type-correct-border);
  color: var(--type-correct-fg);
  font-size: 0.88rem;
  font-weight: 600;
  text-align: center;
  margin-bottom: 16px;
}

/* ── Input Panel ── */
.input-panel {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: 0 2px 8px var(--shadow);
}

.btn-primary {
  padding: 10px 24px;
  background: var(--btn-gradient);
  color: #fff;
  border: none;
  border-radius: 10px;
  font-size: 0.88rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.25s var(--transition);
  box-shadow: 0 3px 12px var(--primary-glow);
  white-space: nowrap;
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 6px 20px var(--primary-glow); }
.btn-primary:active { transform: translateY(0) scale(0.97); }

.action-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border: 1.5px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-secondary);
  color: var(--text-secondary);
  font-size: 0.82rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.25s var(--transition);
}

.action-btn:hover {
  border-color: var(--primary-color);
  color: var(--primary-color);
  background: var(--primary-light);
}

/* ── 경고 배너 ── */
.warning-banner {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-radius: 12px;
  background: var(--danger-light);
  color: var(--danger-color);
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 20px;
}

/* ── Modal ── */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  animation: fadeBg 0.2s ease;
  padding: 20px;
}

@keyframes fadeBg { from { opacity: 0; } to { opacity: 1; } }

.modal-box {
  background: var(--bg-secondary);
  color: var(--text-primary);
  border-radius: 20px;
  padding: 28px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
  animation: modalIn 0.35s var(--transition);
  border: 1px solid var(--border-color);
  position: relative;
  overflow: hidden;
}

.modal-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--gradient-primary);
}

@keyframes modalIn {
  from { transform: translateY(24px) scale(0.95); opacity: 0; }
  to   { transform: translateY(0) scale(1); opacity: 1; }
}

.modal-box h2 { margin-bottom: 18px; font-size: 1.3rem; font-weight: 700; letter-spacing: -0.5px; }

.shortcuts { display: flex; flex-direction: column; gap: 10px; margin-bottom: 20px; }

.shortcut-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  padding: 8px 12px;
  background: var(--bg-primary);
  border-radius: 10px;
}

.shortcut-item kbd {
  background: var(--gradient-primary);
  color: #fff;
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 700;
  font-family: 'Inter', monospace;
  box-shadow: 0 2px 6px var(--primary-glow);
  letter-spacing: 0.3px;
}

.shortcut-item span { color: var(--text-secondary); font-weight: 500; }

.modal-close-btn {
  width: 100%;
  background: var(--btn-gradient);
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 12px;
  font-size: 0.92rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.25s;
  box-shadow: 0 3px 10px var(--primary-glow);
}

.modal-close-btn:hover { transform: translateY(-2px); box-shadow: 0 6px 18px var(--primary-glow); }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-secondary);
  color: var(--text-primary);
  padding: 12px 24px;
  border-radius: 12px;
  font-size: 0.85rem;
  font-weight: 600;
  z-index: 200;
  box-shadow: 0 8px 30px rgba(0,0,0,0.15);
  border: 1px solid var(--border-color);
  animation: toastIn 0.35s var(--transition);
}

@keyframes toastIn {
  from { transform: translateX(-50%) translateY(16px); opacity: 0; }
  to   { transform: translateX(-50%) translateY(0); opacity: 1; }
}

/* ── Scrollbar / focus ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 6px; }
::selection { background: var(--primary-glow); }
*:focus-visible { outline: 2px solid var(--primary-color); outline-offset: 2px; }
html { overflow-x: hidden; }

/* ── Responsive ── */
@media (max-width: 600px) {
  .container { padding: 24px 16px 50px; }
  .header-left h1 { font-size: 1.5rem; }
  .lang-toggle { min-width: 140px; right: -4px; }
  .lang-option { padding: 8px 8px; font-size: 0.8rem; }
  .typing-btn-row { flex-direction: column; align-items: stretch; }
  .typing-prompt { font-size: 0.95rem; line-height: 1.9; padding: 14px 12px; }
  .typing-source { font-size: 0.76rem; margin: -6px 2px 14px 0; }
  .typing-stats { gap: 8px; }
  .typing-stat { padding: 12px 6px; }
  .typing-stat-value { font-size: 1.25rem; }
  .typing-stat-label { font-size: 0.66rem; }
  .typing-stat-sub { font-size: 0.62rem; }
}