/* 한글 타자 연습 — 스타일 */

:root {
  --bg: #0d1117;
  --bg2: #151b26;
  --panel: #1a2130;
  --line: #29334a;
  --fg: #e6ecf7;
  --dim: #8794ad;
  --accent: #4dd6c1;
  --accent2: #7c8cff;
  --ok: #4dd6c1;
  --bad: #ff6b81;
  --warn: #ffd166;

  --f-l5: #ff8fa3;
  --f-l4: #ffb26b;
  --f-l3: #ffe066;
  --f-l2: #8ce99a;
  --f-r2: #66d9e8;
  --f-r3: #74c0fc;
  --f-r4: #b197fc;
  --f-r5: #f783ac;
  --f-th: #6b7a94;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
}

body {
  background: radial-gradient(1200px 700px at 50% -10%, #1a2438 0%, var(--bg) 60%);
  color: var(--fg);
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Apple SD Gothic Neo',
               'Noto Sans KR', 'Malgun Gothic', sans-serif;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.hidden { display: none !important; }

/* ───────────────────────────────── 헤더 ───────────────────────────────── */
#topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 22px;
  border-bottom: 1px solid var(--line);
  background: rgba(13, 17, 23, .7);
  backdrop-filter: blur(8px);
  flex: none;
}
#topbar h1 {
  font-size: 17px;
  margin: 0;
  letter-spacing: -.3px;
}
#topbar .sub {
  font-size: 11px;
  color: var(--bg);
  background: var(--accent);
  border-radius: 20px;
  padding: 2px 9px;
  margin-left: 6px;
  vertical-align: 2px;
  font-weight: 700;
}
.tools { display: flex; gap: 8px; }
.tbtn {
  background: var(--panel);
  color: var(--fg);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 7px 12px;
  font-size: 12.5px;
  cursor: pointer;
  font-family: inherit;
  transition: .15s;
}
.tbtn:hover { border-color: var(--accent); color: var(--accent); }
.tbtn.off { opacity: .42; }

main {
  flex: 1;
  min-height: 0;
  overflow: auto;
  display: flex;
  flex-direction: column;
}
main > section { flex: 1; min-height: 0; display: flex; flex-direction: column; }

/* ───────────────────────────────── 메뉴 ───────────────────────────────── */
#screen-menu {
  padding: 26px 22px 30px;
  max-width: 1040px;
  width: 100%;
  margin: 0 auto;
  justify-content: center;
}
#langsel {
  display: flex;
  justify-content: center;
  gap: 6px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 11px;
  padding: 5px;
  width: fit-content;
  margin: 0 auto 18px;
}
.langbtn {
  background: none;
  border: 0;
  color: var(--dim);
  border-radius: 8px;
  padding: 8px 20px;
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: .15s;
}
.langbtn:hover { color: var(--fg); }
.langbtn.active { background: var(--accent); color: #07141a; }

.lead {
  text-align: center;
  color: var(--dim);
  font-size: 14px;
  margin: 0 0 24px;
  line-height: 1.7;
}
.lead strong { color: var(--accent); font-weight: 600; }

#modes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 16px;
}
.card {
  background: linear-gradient(180deg, var(--panel), var(--bg2));
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px 18px 16px;
  transition: .18s;
}
.card:hover { border-color: #3c4a68; transform: translateY(-2px); }
.card-head { display: flex; align-items: center; gap: 9px; }
.card-head .icon { font-size: 19px; }
.card h3 { margin: 0; font-size: 16px; letter-spacing: -.2px; }
.card p {
  color: var(--dim);
  font-size: 12.5px;
  line-height: 1.65;
  margin: 9px 0 14px;
}
.chips { display: flex; flex-wrap: wrap; gap: 7px; }
.chip {
  background: #222c3f;
  border: 1px solid var(--line);
  color: var(--fg);
  border-radius: 8px;
  padding: 7px 13px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  font-family: inherit;
  transition: .14s;
}
.chip:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #08131a;
}
.rec {
  margin-top: 12px;
  font-size: 11.5px;
  color: var(--warn);
  min-height: 14px;
}
.foot {
  text-align: center;
  color: #55617a;
  font-size: 12px;
  margin: 26px 0 0;
}

/* ───────────────────────────────── 연습 ───────────────────────────────── */
#screen-play { padding: 14px 20px 18px; gap: 12px; }

.hud {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  flex: none;
}
.hud-mode { font-size: 14.5px; font-weight: 600; }
.hud-hint { font-size: 12px; color: var(--dim); margin-top: 3px; }
.hud-right { display: flex; gap: 10px; flex: none; }
.stat {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 9px;
  padding: 6px 13px;
  text-align: center;
  min-width: 70px;
}
.stat b {
  display: block;
  font-size: 17px;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}
.stat span { font-size: 10.5px; color: var(--dim); }

.field {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  background: rgba(21, 27, 38, .5);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px;
  position: relative;
}

#target {
  font-size: clamp(26px, 3.6vw, 42px);
  font-weight: 600;
  letter-spacing: 1px;
  text-align: center;
  line-height: 1.5;
  word-break: keep-all;
}
#target.drill { letter-spacing: 14px; font-size: clamp(30px, 4vw, 46px); }

#target .ch { color: #59657f; transition: color .1s; position: relative; }
#target .ch.ok { color: var(--ok); }
#target .ch.bad {
  color: var(--bad);
  background: rgba(255, 107, 129, .14);
  border-radius: 4px;
}
#target .ch.cur {
  color: var(--fg);
  border-bottom: 3px solid var(--accent);
}

#typed {
  font-size: clamp(20px, 2.4vw, 28px);
  color: var(--fg);
  min-height: 1.6em;
  letter-spacing: 1px;
  background: #10161f;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 8px 18px;
  min-width: 260px;
  text-align: center;
}
#typed.has-error { border-color: var(--bad); color: var(--bad); }

.caret {
  display: inline-block;
  width: 2px;
  height: 1em;
  background: var(--accent);
  vertical-align: -2px;
  margin-left: 2px;
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

#upcoming {
  display: flex;
  gap: 14px;
  color: #4d5870;
  font-size: 14px;
}
#upcoming span {
  border-bottom: 1px dashed #333f57;
  padding-bottom: 2px;
}

.shake { animation: shake .22s; }
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-7px); }
  75% { transform: translateX(7px); }
}

/* ─────────────────────────── 낱말 떨어뜨리기 ─────────────────────────── */
#field-fall { justify-content: stretch; gap: 10px; padding: 14px; }

#fall-hud {
  display: flex;
  gap: 20px;
  font-size: 13px;
  color: var(--dim);
  flex: none;
  align-self: stretch;
}
#fall-hud b { color: var(--fg); font-size: 15px; font-variant-numeric: tabular-nums; }
#fall-hud .lives b { color: var(--bad); letter-spacing: 2px; }

#fall-field {
  flex: 1;
  min-height: 180px;
  align-self: stretch;
  position: relative;
  overflow: hidden;
  border-radius: 10px;
  background:
    linear-gradient(180deg, rgba(124, 140, 255, .07), transparent 30%),
    repeating-linear-gradient(90deg, transparent 0 59px, rgba(255, 255, 255, .02) 59px 60px);
  border-bottom: 2px solid var(--bad);
}
#fall-words { position: absolute; inset: 0; }

.fword {
  position: absolute;
  top: 0; left: 0;
  padding: 5px 12px;
  background: #222c3f;
  border: 1px solid var(--line);
  border-radius: 8px;
  font-size: 19px;
  font-weight: 600;
  white-space: nowrap;
  will-change: transform;
}
.fword.locked {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(77, 214, 193, .22);
  background: #17313a;
}
.fword span.ok { color: var(--accent); }
.fword.pop { animation: pop .24s forwards; }
@keyframes pop {
  to { transform: scale(1.5); opacity: 0; filter: blur(3px); }
}
.fword.miss { animation: missOut .26s forwards; }
@keyframes missOut {
  to { opacity: 0; color: var(--bad); border-color: var(--bad); }
}

#level-up {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 44px;
  font-weight: 800;
  color: var(--accent2);
  opacity: 0;
  pointer-events: none;
  letter-spacing: 2px;
}
#level-up.show { animation: lvl 1.1s ease-out; }
@keyframes lvl {
  0% { opacity: 0; transform: scale(.6); }
  25% { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(1.35); }
}

#fall-buf {
  flex: none;
  align-self: stretch;
  text-align: center;
  font-size: 24px;
  font-weight: 600;
  background: #10161f;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 7px;
  min-height: 46px;
}
#fall-buf .ghost { color: #47536c; font-size: 15px; font-weight: 400; }

/* ─────────────────────────────── 화면 자판 ─────────────────────────────── */
#keyboard {
  flex: none;
  display: flex;
  flex-direction: column;
  gap: 5px;
  max-width: 940px;
  width: 100%;
  margin: 0 auto;
  user-select: none;
}
.kb-row { display: flex; gap: 5px; }

.kb-key {
  flex: 1 1 0;
  min-width: 0;
  height: 46px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-top-color: #36415c;
  border-radius: 7px;
  position: relative;
  box-shadow: 0 2px 0 #0b0f16;
  transition: background .1s, border-color .1s, transform .06s;
}
.kb-en {
  position: absolute;
  top: 4px; left: 6px;
  font-size: 10px;
  color: #5d6880;
}
.kb-kr {
  position: absolute;
  bottom: 5px; right: 8px;
  font-size: 17px;
  font-weight: 600;
  color: var(--fg);
}
.kb-sh {
  position: absolute;
  top: 4px; right: 8px;
  font-size: 11px;
  color: var(--dim);
}
/* 영문 연습: 자모를 감추고 알파벳을 키 한가운데 크게 */
#keyboard.lang-en .kb-kr,
#keyboard.lang-en .kb-sh { display: none; }
#keyboard.lang-en .kb-en {
  position: static;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  font-size: 15px;
  font-weight: 600;
  color: var(--fg);
}

.kb-key.wide .kb-en,
#keyboard.lang-en .kb-key.wide .kb-en {
  position: static;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100%;
  font-size: 11px;
  font-weight: 400;
  color: #6b7794;
}
.kb-key.home::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 50%;
  transform: translateX(-50%);
  width: 14px; height: 2px;
  background: #4a5670;
  border-radius: 2px;
}

/* 손가락 구역 색 */
#keyboard.show-fingers .kb-key { border-bottom-width: 3px; }
#keyboard.show-fingers .f-l5 { border-bottom-color: var(--f-l5); }
#keyboard.show-fingers .f-l4 { border-bottom-color: var(--f-l4); }
#keyboard.show-fingers .f-l3 { border-bottom-color: var(--f-l3); }
#keyboard.show-fingers .f-l2 { border-bottom-color: var(--f-l2); }
#keyboard.show-fingers .f-r2 { border-bottom-color: var(--f-r2); }
#keyboard.show-fingers .f-r3 { border-bottom-color: var(--f-r3); }
#keyboard.show-fingers .f-r4 { border-bottom-color: var(--f-r4); }
#keyboard.show-fingers .f-r5 { border-bottom-color: var(--f-r5); }
#keyboard.show-fingers .f-th { border-bottom-color: var(--f-th); }

/* 다음에 눌러야 할 키 */
.kb-key.next {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 16px rgba(77, 214, 193, .45), 0 2px 0 #0b0f16;
}
.kb-key.next .kb-kr,
.kb-key.next .kb-en,
.kb-key.next .kb-sh { color: #07141a; }
.kb-key.next-shift {
  background: var(--accent2);
  border-color: var(--accent2);
}
.kb-key.next-shift .kb-en { color: #0a0d1c; font-weight: 700; }

/* 실제로 누른 순간 */
.kb-key.hit {
  background: #2f4a5e;
  transform: translateY(2px);
  box-shadow: none;
}
.kb-key.bad {
  background: var(--bad);
  border-color: var(--bad);
  transform: translateY(2px);
  box-shadow: none;
}
.kb-key.bad .kb-kr, .kb-key.bad .kb-en, .kb-key.bad .kb-sh { color: #2a0009; }

/* 영문 모드는 .kb-en 색을 id 선택자로 잡으므로 강조 색을 다시 지정한다 */
#keyboard.lang-en .kb-key.next .kb-en { color: #07141a; }
#keyboard.lang-en .kb-key.next-shift .kb-en { color: #0a0d1c; font-weight: 700; }
#keyboard.lang-en .kb-key.bad .kb-en { color: #2a0009; }

/* ───────────────────────────────── 결과 ───────────────────────────────── */
#screen-result {
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 30px 20px;
}
#result-title { font-size: 22px; margin: 0; }
#result-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  gap: 14px;
  max-width: 640px;
  width: 100%;
}
.rcard {
  background: linear-gradient(180deg, var(--panel), var(--bg2));
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 12px;
  text-align: center;
}
.rlabel { font-size: 12px; color: var(--dim); margin-bottom: 6px; }
.rvalue {
  font-size: 27px;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.rvalue small { font-size: 12px; color: var(--dim); margin-left: 3px; font-weight: 500; }

#result-note { color: var(--dim); font-size: 13.5px; margin: 0; min-height: 20px; }
#result-note.hl { color: var(--warn); font-weight: 600; font-size: 15px; }

.actions { display: flex; gap: 10px; }
.actions button {
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--fg);
  border-radius: 9px;
  padding: 11px 26px;
  font-size: 14px;
  cursor: pointer;
  font-family: inherit;
  transition: .15s;
}
.actions button:hover { border-color: var(--accent); }
.actions .primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #07141a;
  font-weight: 700;
}
.actions .primary:hover { filter: brightness(1.1); }

@media (max-width: 720px) {
  #result-grid { grid-template-columns: repeat(2, 1fr); }
  .hud { flex-direction: column; }
  .kb-key { height: 38px; }
  .kb-kr { font-size: 14px; }
}