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

:root {
  --green:       #3a7d44;
  --green-light: #52b788;
  --green-bg:    #d8f3dc;
  --red:         #e63946;
  --red-bg:      #ffdde1;
  --orange:      #f4a261;
  --gray:        #adb5bd;
  --gray-bg:     #f1f3f5;
  --dark:        #1b1b2f;
  --text:        #2d2d2d;
  --border:      #ced4da;
  --white:       #ffffff;
  --font:        'Segoe UI', Arial, sans-serif;
}

body {
  font-family: var(--font);
  background: var(--white);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ── Header ── */
header {
  width: 100%;
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  position: sticky;
  top: 0;
  background: var(--white);
  z-index: 10;
}

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

.game-title {
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  color: var(--dark);
  text-transform: uppercase;
}

.header-right { display: flex; align-items: center; gap: 18px; }

.header-right button {
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text);
  background: none;
  border: none;
  cursor: pointer;
  letter-spacing: 0.04em;
  padding: 4px 0;
  border-bottom: 2px solid transparent;
  transition: border-color 0.15s, color 0.15s;
}
.header-right button:hover { color: var(--green); border-color: var(--green); }

/* ── Main ── */
main {
  flex: 1;
  width: 100%;
  max-width: 560px;
  padding: 28px 16px 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

/* ── Meta ── */
.meta {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--gray);
  text-transform: uppercase;
  text-align: center;
}

/* ── Description card ── */
.desc-card {
  width: 100%;
  background: var(--gray-bg);
  border-radius: 12px;
  padding: 18px 20px;
  text-align: center;
}

.desc-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--gray);
  margin-bottom: 6px;
}

.desc-text {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.4;
}

/* ── Hint ── */
.hint-wrap {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.btn-hint {
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--orange);
  background: none;
  border: 2px solid var(--orange);
  border-radius: 8px;
  padding: 7px 20px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.btn-hint:hover { background: var(--orange); color: var(--white); }
.btn-hint:disabled { opacity: 0.4; cursor: default; background: none; color: var(--orange); }

.hint-reveal {
  font-size: 0.88rem;
  color: var(--orange);
  font-weight: 600;
  text-align: center;
  min-height: 20px;
}

/* ── Stats ── */
.stats {
  width: 100%;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}

.stat-box {
  flex: 1;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 10px 8px;
  text-align: center;
}

.stat-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gray);
  margin-bottom: 2px;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--dark);
  line-height: 1.1;
}

.stat-value.flash-green { animation: flash-g 0.5s ease; }
.stat-value.flash-red   { animation: flash-r 0.5s ease; }

@keyframes flash-g { 0%,100%{color:var(--dark)} 50%{color:var(--green)} }
@keyframes flash-r { 0%,100%{color:var(--dark)} 50%{color:var(--red)} }

/* ── Points bar ── */
.points-bar-wrap {
  width: 100%;
  height: 6px;
  background: var(--gray-bg);
  border-radius: 99px;
  overflow: hidden;
}

.points-bar {
  height: 100%;
  background: var(--green-light);
  border-radius: 99px;
  transition: width 0.4s ease, background 0.4s ease;
}

/* ── Word display ── */
.word-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  width: 100%;
}

.letter-box {
  width: 38px;
  height: 46px;
  border: 2px solid var(--border);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--dark);
  background: var(--white);
  transition: background 0.3s, border-color 0.3s;
}

.letter-box.space {
  border-color: transparent;
  background: transparent;
  width: 16px;
}

.letter-box.revealed {
  background: var(--green-bg);
  border-color: var(--green-light);
  color: var(--green);
}

.letter-box.revealed.pop { animation: pop 0.35s ease; }

@keyframes pop {
  0%  { transform: scale(1); }
  50% { transform: scale(1.22); }
  100%{ transform: scale(1); }
}

/* ── Wrong letters ── */
.wrong-section { width: 100%; text-align: center; }

.wrong-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gray);
  margin-bottom: 6px;
}

.wrong-letters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 5px;
  min-height: 26px;
}

.wrong-chip {
  background: var(--red-bg);
  color: var(--red);
  border-radius: 5px;
  padding: 2px 8px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  animation: chip-in 0.2s ease;
}

@keyframes chip-in {
  from { opacity:0; transform: scale(0.7); }
  to   { opacity:1; transform: scale(1); }
}

/* ── Game message ── */
.game-message {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-align: center;
  padding: 12px 20px;
  border-radius: 10px;
  width: 100%;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.3s, transform 0.3s;
}
.game-message.visible { opacity: 1; transform: translateY(0); }
.game-message.win  { background: var(--green-bg); color: var(--green); }
.game-message.lose { background: var(--red-bg);   color: var(--red);   }

/* ── Play again ── */
.btn-play-again {
  display: none;
  background: var(--green);
  color: var(--white);
  border: none;
  border-radius: 8px;
  padding: 12px 32px;
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
}
.btn-play-again:hover { background: #2d6a4f; transform: translateY(-1px); }
.btn-play-again.show  { display: block; }

/* ── Keyboard ── */
.keyboard { width: 100%; display: flex; flex-direction: column; gap: 6px; }

.key-row { display: flex; justify-content: center; gap: 5px; }

.key {
  min-width: 34px;
  height: 46px;
  border-radius: 7px;
  border: 1.5px solid var(--border);
  background: var(--white);
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  text-transform: uppercase;
  color: var(--text);
  transition: background 0.15s, color 0.15s, border-color 0.15s, transform 0.08s;
  padding: 0 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  letter-spacing: 0.04em;
}

.key:hover:not(:disabled) { background: var(--gray-bg); transform: translateY(-1px); }
.key:active:not(:disabled){ transform: translateY(0); }

.key.correct {
  background: var(--green-bg);
  border-color: var(--green-light);
  color: var(--green);
  cursor: default;
}

.key.wrong {
  background: var(--red-bg);
  border-color: var(--red);
  color: var(--red);
  cursor: default;
  opacity: 0.6;
}

.key:disabled { cursor: default; }

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  width: 100%;
  padding: 12px 24px;
  text-align: center;
  font-size: 0.68rem;
  color: var(--gray);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ── Rules modal ── */
.overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.45);
  z-index: 100;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.overlay.open { display: flex; }

.modal {
  background: var(--white);
  border-radius: 14px;
  max-width: 440px;
  width: 100%;
  padding: 28px 24px;
  position: relative;
  box-shadow: 0 12px 40px rgba(0,0,0,0.18);
}

.modal h2 {
  font-size: 1.1rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--dark);
  margin-bottom: 16px;
}

.modal p, .modal li {
  font-size: 0.88rem;
  line-height: 1.6;
  color: var(--text);
  margin-bottom: 8px;
}

.modal ul { padding-left: 18px; }

.modal-close {
  position: absolute;
  top: 14px; right: 16px;
  background: none; border: none;
  font-size: 1.4rem; cursor: pointer;
  color: var(--gray); line-height: 1;
}
.modal-close:hover { color: var(--dark); }

@media (max-width: 420px) {
  .key { min-width: 27px; height: 40px; font-size: 0.72rem; }
  .letter-box { width: 32px; height: 40px; font-size: 1.1rem; }
}