/* ═══════════════════════════════════════════════════════
   WORDGUESS — Premium Dark Theme Styles
   ═══════════════════════════════════════════════════════ */

:root {
  /* Vibrant & Premium Color Palette (HSL based) */
  --bg-primary: hsl(222, 47%, 7%);
  --bg-secondary: hsl(222, 47%, 11%);
  --bg-card: hsla(222, 47%, 12%, 0.85);
  --bg-glass: hsla(0, 0%, 100%, 0.05);
  --border-glass: hsla(0, 0%, 100%, 0.1);
  --border-active: hsla(245, 82%, 67%, 0.4);

  /* Neon Accents */
  --accent-primary: hsl(245, 82%, 67%); /* Electric Indigo */
  --accent-secondary: hsl(265, 89%, 66%); /* Vivid Purple */
  --accent-tertiary: hsl(190, 90%, 50%); /* Cyan */
  --accent-gradient: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary), var(--accent-tertiary));
  --accent-glow: 0 0 25px hsla(245, 82%, 67%, 0.35);

  /* Feedback Colors */
  --green: hsl(142, 71%, 45%);
  --green-bg: hsla(142, 71%, 45%, 0.15);
  --yellow: hsl(48, 96%, 53%);
  --yellow-bg: hsla(48, 96%, 53%, 0.15);
  --red: hsl(0, 84%, 60%);
  --red-bg: hsla(0, 84%, 60%, 0.15);

  /* Text Colors */
  --text-primary: hsl(210, 40%, 98%);
  --text-secondary: hsl(215, 25%, 72%);
  --text-muted: hsl(215, 16%, 47%);

  /* UI Tokens */
  --font: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;

  /* Shadows */
  --shadow-sm: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 25px 50px -12px rgb(0 0 0 / 0.25);
}

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

body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ── Floating Word Background ─────────────────────────── */
.word-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.floating-word {
  position: absolute;
  font-family: var(--font);
  font-weight: 700;
  color: rgba(99, 102, 241, 0.07);
  font-size: 1.4rem;
  white-space: nowrap;
  animation: floatWord linear infinite;
  user-select: none;
  text-transform: uppercase;
  letter-spacing: 3px;
}

@keyframes floatWord {
  0% { transform: translateY(0) rotate(var(--rotate)); opacity: 0; }
  10% { opacity: 1; }
  90% { opacity: 1; }
  100% { transform: translateY(calc(-100vh - 60px)) rotate(var(--rotate)); opacity: 0; }
}

/* ── Screens ──────────────────────────────────────────── */
.screen {
  display: none;
  min-height: 100vh;
  position: relative;
  z-index: 1;
}
.screen.active { display: flex; }

/* ── Home Screen ──────────────────────────────────────── */
#homeScreen {
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

.home-container {
  text-align: center;
  padding: 2rem;
  max-width: 500px;
  width: 100%;
}

.game-title {
  font-size: 4rem;
  font-weight: 900;
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: center;
  gap: 4px;
}

.title-word {
  display: inline-block;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: titleBounce 3s ease-in-out infinite;
  text-shadow: 0 0 30px hsla(245, 82%, 67%, 0.2);
  filter: drop-shadow(0 0 2px hsla(245, 82%, 67%, 0.3));
}

.title-letter-space {
  width: 20px;
}

.title-word:nth-child(1) { animation-delay: 0s; }
.title-word:nth-child(2) { animation-delay: 0.1s; }
.title-word:nth-child(3) { animation-delay: 0.2s; }
.title-word:nth-child(4) { animation-delay: 0.3s; }
.title-word:nth-child(5) { animation-delay: 0.4s; } /* Fixed index */
.title-word:nth-child(6) { animation-delay: 0.5s; }
.title-word:nth-child(7) { animation-delay: 0.6s; }
.title-word:nth-child(8) { animation-delay: 0.7s; }
.title-word:nth-child(9) { animation-delay: 0.8s; }

@keyframes titleBounce {
  0%, 100% { transform: translateY(0) scale(1) rotate(0); }
  25% { transform: translateY(-15px) scale(1.1) rotate(-2deg); }
  50% { transform: translateY(0) scale(1) rotate(0); }
  75% { transform: translateY(-8px) scale(1.05) rotate(2deg); }
}

.game-subtitle {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 3rem;
  font-weight: 300;
}

.home-buttons {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
}

/* ── Buttons ──────────────────────────────────────────── */
.btn {
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 700;
  padding: 16px 36px;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  min-width: 280px;
  position: relative;
  overflow: hidden;
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.btn-primary {
  background: var(--accent-gradient);
  color: white;
  box-shadow: 0 10px 20px -10px hsla(245, 82%, 67%, 0.5), var(--accent-glow);
}
.btn-primary:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 15px 30px -10px hsla(245, 82%, 67%, 0.6), 0 0 40px hsla(245, 82%, 67%, 0.4);
}
.btn-primary:active { transform: translateY(-2px) scale(0.98); }

.btn-secondary {
  background: var(--bg-glass);
  color: var(--text-primary);
  border: 1px solid var(--border-glass);
  backdrop-filter: blur(20px);
}
.btn-secondary:hover {
  background: hsla(0, 0%, 100%, 0.1);
  transform: translateY(-5px);
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-lg);
}

.btn-danger {
  background: hsla(0, 84%, 60%, 0.1);
  color: var(--red);
  border: 1px solid hsla(0, 84%, 60%, 0.2);
}
.btn-danger:hover {
  background: hsla(0, 84%, 60%, 0.2);
  transform: translateY(-3px);
  border-color: var(--red);
}

.btn-large {
  font-size: 1.25rem;
  padding: 20px 48px;
}

.btn-small {
  font-size: 0.85rem;
  padding: 10px 20px;
  min-width: auto;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* ── Lobby ────────────────────────────────────────────── */
#lobbyScreen {
  justify-content: center;
  align-items: center;
}

.lobby-container {
  max-width: 520px;
  width: 100%;
  padding: 2rem;
  text-align: center;
}

.screen-title {
  font-size: 2rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 2rem;
}

.lobby-choice {
  display: flex;
  flex-direction: column;
  gap: 14px;
  align-items: center;
}

.lobby-section {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  backdrop-filter: blur(24px);
  box-shadow: var(--shadow-lg), 0 0 40px hsla(222, 47%, 5%, 0.5);
  animation: fadeSlideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  transition: all 0.4s ease;
}
.lobby-section:hover { 
  transform: translateY(-8px);
  border-color: var(--border-active);
  box-shadow: var(--shadow-lg), var(--accent-glow);
}

.lobby-section h3 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 2rem;
  color: var(--text-primary);
  letter-spacing: -0.5px;
}

.hidden { display: none !important; }

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Form Elements ────────────────────────────────────── */
.form-group {
  margin-bottom: 1.5rem;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.mode-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 10px;
  line-height: 1.4;
  font-style: italic;
}

.option-buttons {
  display: flex;
  gap: 8px;
}

.opt-btn {
  flex: 1;
  padding: 12px 8px;
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  font-family: var(--font);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.25s;
}

.opt-btn:hover {
  border-color: var(--accent-primary);
  color: var(--text-primary);
}

.opt-btn.active {
  background: var(--accent-gradient);
  color: white;
  border-color: transparent;
  box-shadow: 0 0 15px var(--accent-primary-glow);
}

.code-input, .text-input {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 1.3rem;
  font-weight: 700;
  text-align: center;
  letter-spacing: 8px;
  outline: none;
  transition: border-color 0.3s;
}

.text-input {
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: normal;
  text-align: left;
}

.code-input:focus, .text-input:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 15px var(--accent-primary-glow);
}

/* ── Room Code Display ────────────────────────────────── */
.room-code-display {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin-bottom: 1.5rem;
  padding: 16px;
  background: rgba(99, 102, 241, 0.08);
  border-radius: var(--radius);
  border: 1px solid rgba(99, 102, 241, 0.2);
}

.room-code {
  font-size: 2.5rem;
  font-weight: 900;
  letter-spacing: 8px;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 10px hsla(245, 82%, 67%, 0.3));
}

.btn-copy {
  background: hsla(0, 0%, 100%, 0.05);
  border: 1px solid var(--border-glass);
  font-size: 1.2rem;
  cursor: pointer;
  padding: 10px;
  border-radius: var(--radius-sm);
  transition: all 0.3s;
}
.btn-copy:hover { 
  background: hsla(0, 0%, 100%, 0.1);
  transform: scale(1.1);
  border-color: var(--accent-primary);
}

.player-count-info {
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.min-players-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-style: italic;
}

/* ── Player List ──────────────────────────────────────── */
.player-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 1.5rem;
}

.player-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  animation: fadeSlideUp 0.3s ease;
}

.player-name {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
}

.player-badge {
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 20px;
  background: var(--accent-gradient);
  color: white;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ── Game Layout ──────────────────────────────────────── */
#gameScreen {
  padding: 1rem;
}

.game-layout {
  display: flex;
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
  min-height: 100vh;
  padding-top: 1rem;
}

.game-sidebar {
  width: 240px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.game-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

/* ── Round & Timer ────────────────────────────────────── */
.round-info {
  text-align: center;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-md);
  transition: transform 0.3s ease;
}
.round-info:hover { transform: translateY(-5px); border-color: var(--border-active); }

.round-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 4px;
}

.round-number {
  display: block;
  font-size: 3rem;
  font-weight: 900;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.timer-container {
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  padding: 16px;
  backdrop-filter: blur(12px);
  text-align: center;
}

.timer-bar {
  height: 8px;
  background: rgba(255,255,255,0.05);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 8px;
}

.timer-fill {
  height: 100%;
  width: 100%;
  background: var(--accent-gradient);
  border-radius: 4px;
  transition: width 1s linear;
}

.timer-fill.warning { background: linear-gradient(90deg, var(--yellow), #f59e0b); }
.timer-fill.danger { background: linear-gradient(90deg, var(--red), #f87171); }

.timer-text {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
}

/* ── Duplicate Hint ───────────────────────────────────── */
.dupe-hint {
  background: rgba(234, 179, 8, 0.1);
  border: 1px solid rgba(234, 179, 8, 0.3);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 0.85rem;
  color: var(--yellow);
  text-align: center;
  animation: fadeSlideUp 0.4s ease;
}

/* ── Game Players Sidebar ─────────────────────────────── */
.game-players {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.game-player-card {
  padding: 12px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-sm);
  backdrop-filter: blur(12px);
}

.game-player-card.won {
  border-color: var(--green);
  background: var(--green-bg);
}

.game-player-name {
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 4px;
}

.game-player-info {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  justify-content: space-between;
}

/* ── Guess Grid ───────────────────────────────────────── */
.guess-grid {
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: 100%;
  max-width: 500px;
  max-height: 400px;
  overflow-y: auto;
  padding: 4px;
}

.guess-grid::-webkit-scrollbar { width: 6px; }
.guess-grid::-webkit-scrollbar-track { background: transparent; }
.guess-grid::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }

.guess-row {
  display: flex;
  gap: 6px;
  justify-content: center;
  animation: guessReveal 0.5s ease;
}

@keyframes guessReveal {
  from { opacity: 0; transform: scale(0.9); }
  to { opacity: 1; transform: scale(1); }
}

.guess-letter {
  width: 58px;
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  font-weight: 900;
  text-transform: uppercase;
  border-radius: var(--radius-md);
  border: 2px solid var(--border-glass);
  background: var(--bg-glass);
  backdrop-filter: blur(8px);
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.guess-letter.green {
  background: var(--green);
  border-color: var(--green);
  color: white;
  box-shadow: 0 0 20px hsla(142, 71%, 45%, 0.4);
  text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.guess-letter.yellow {
  background: var(--yellow);
  border-color: var(--yellow);
  color: hsla(222, 47%, 7%, 1);
  box-shadow: 0 0 20px hsla(48, 96%, 53%, 0.4);
}

.guess-letter.red {
  background: hsla(0, 0%, 100%, 0.1);
  border-color: hsla(0, 0%, 100%, 0.15);
  color: var(--text-muted);
}

/* ── Input Area ───────────────────────────────────────── */
.input-area {
  width: 100%;
  max-width: 500px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.letter-boxes {
  display: flex;
  gap: 8px;
  justify-content: center;
}

.letter-box {
  width: 60px;
  height: 60px;
  background: var(--bg-glass);
  border: 2px solid var(--border-glass);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  font-weight: 900;
  text-transform: uppercase;
  color: var(--text-primary);
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  cursor: text;
  box-shadow: var(--shadow-sm);
}
.letter-box:hover { border-color: var(--accent-primary); transform: scale(1.08); background: hsla(0, 0%, 100%, 0.08); }

.letter-box.filled {
  border-color: var(--accent-primary);
  background: hsla(245, 82%, 67%, 0.1);
  box-shadow: 0 0 15px hsla(245, 82%, 67%, 0.2);
  transform: scale(1.05);
}

.letter-box.active {
  border-color: var(--accent-tertiary);
  background: hsla(190, 90%, 50%, 0.05);
  box-shadow: 0 0 20px hsla(190, 90%, 50%, 0.25);
  animation: activePulse 2s infinite ease-in-out;
}

@keyframes activePulse {
  0%, 100% { border-color: var(--accent-tertiary); }
  50% { border-color: var(--accent-primary); }
}

.input-buttons {
  display: flex;
  gap: 10px;
}

.input-buttons .btn {
  min-width: 130px;
}

.input-error {
  color: var(--red);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 8px 16px;
  background: var(--red-bg);
  border-radius: var(--radius-sm);
  animation: shake 0.4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-8px); }
  75% { transform: translateX(8px); }
}

/* ── Game Message ─────────────────────────────────────── */
.game-message {
  padding: 14px 24px;
  border-radius: var(--radius);
  font-weight: 600;
  text-align: center;
  width: 100%;
  max-width: 500px;
  animation: fadeSlideUp 0.4s ease;
}

.game-message.success {
  background: var(--green-bg);
  border: 1px solid rgba(34, 197, 94, 0.3);
  color: var(--green);
}

.game-message.info {
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.3);
  color: #a5b4fc;
}

.game-message.warning {
  background: var(--yellow-bg);
  border: 1px solid rgba(234, 179, 8, 0.3);
  color: var(--yellow);
}

/* ── Modals ───────────────────────────────────────────── */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeIn 0.3s ease;
}

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

.modal.hidden { display: none; }

.modal-content {
  background: var(--bg-secondary);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 2rem;
  max-width: 480px;
  width: 90%;
  max-height: 85vh;
  overflow-y: auto;
  position: relative;
  animation: modalSlideUp 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-large {
  max-width: 620px;
}

@keyframes modalSlideUp {
  from { opacity: 0; transform: translateY(30px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-glass);
  color: var(--text-secondary);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.modal-close:hover {
  background: rgba(255,255,255,0.1);
  color: var(--text-primary);
}

.modal-content h2 {
  font-size: 1.6rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
}

.modal-content::-webkit-scrollbar { width: 6px; }
.modal-content::-webkit-scrollbar-track { background: transparent; }
.modal-content::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }

/* ── Stats ────────────────────────────────────────────── */
.stats-display { margin: 1.5rem 0; }
.stats-display h3 {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.stat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.stat-card {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius);
  padding: 16px 8px;
  text-align: center;
}

.stat-value {
  display: block;
  font-size: 2rem;
  font-weight: 900;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ── How to Play Rules ────────────────────────────────── */
.rules-content {
  text-align: left;
}

.rule-section {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-glass);
}
.rule-section:last-child { border-bottom: none; }

.rule-section h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.7rem;
  color: var(--text-primary);
}

.rule-section p,
.rule-section li {
  color: var(--text-secondary);
  line-height: 1.6;
  font-size: 0.95rem;
}

.rule-section ul {
  list-style: none;
  padding: 0;
}

.rule-section li {
  padding: 4px 0 4px 20px;
  position: relative;
}
.rule-section li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent-primary);
}

.color-guide {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.color-example {
  display: flex;
  align-items: center;
  gap: 14px;
}

.letter-box-demo {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}
.letter-box-demo.green { background: var(--green); color: white; }
.letter-box-demo.yellow { background: var(--yellow); color: #1a1a1a; }
.letter-box-demo.red { background: var(--red); color: white; }

.color-example p {
  margin: 0;
  font-size: 0.9rem;
}

/* ── Win Overlay ──────────────────────────────────────── */
.overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: hsla(222, 47%, 7%, 0.9);
  backdrop-filter: blur(16px);
  z-index: 2000;
  display: flex;
  justify-content: center;
  align-items: center;
  animation: fadeIn 0.8s ease;
}
.overlay.hidden { display: none !important; }

.overlay-content {
  text-align: center;
  padding: 4rem 3rem;
  background: var(--bg-card);
  border: 1px solid var(--accent-primary);
  border-radius: var(--radius-lg);
  box-shadow: 0 0 60px hsla(245, 82%, 67%, 0.3), var(--shadow-lg);
  animation: scaleIn 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
  overflow: hidden;
  max-width: 500px;
  width: 90%;
}

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

.overlay-content h2 {
  font-size: 3.5rem;
  font-weight: 900;
  margin-bottom: 0.5rem;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 10px hsla(245, 82%, 67%, 0.4));
}

.overlay-content p {
  color: var(--text-secondary);
  font-size: 1.25rem;
  font-weight: 500;
}

.next-round-text {
  margin-top: 2rem;
  font-size: 0.95rem !important;
  color: var(--text-muted) !important;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 600;
}

/* ── Toast Notification ───────────────────────────────── */
.toast {
  position: fixed;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--bg-card);
  border: 1px solid var(--accent-primary);
  padding: 16px 32px;
  border-radius: 50px;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1rem;
  z-index: 3000;
  backdrop-filter: blur(20px);
  box-shadow: 0 10px 40px -10px hsla(245, 82%, 67%, 0.5), var(--accent-glow);
  transition: all 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  display: flex;
  align-items: center;
  gap: 12px;
  opacity: 0;
  white-space: nowrap;
}

.toast.visible {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

.toast span {
  font-size: 1.2rem;
}

/* ── Responsive ───────────────────────────────────────── */
@media (max-width: 768px) {
  .game-title { font-size: 2.8rem; }
  .game-layout {
    flex-direction: column;
  }
  .game-sidebar {
    width: 100%;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.75rem;
  }
  .round-info, .timer-container {
    flex: 1;
    min-width: 140px;
  }
  .game-players {
    flex-direction: row;
    flex-wrap: wrap;
    width: 100%;
  }
  .game-player-card { flex: 1; min-width: 140px; }
  .guess-letter { width: 44px; height: 44px; font-size: 1.2rem; }
  .letter-box { width: 46px; height: 46px; font-size: 1.3rem; }
  .stat-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 480px) {
  .game-title { font-size: 2.2rem; }
  .btn { min-width: 220px; padding: 12px 24px; }
  .btn-large { padding: 14px 28px; font-size: 1rem; }
  .guess-letter { width: 38px; height: 38px; font-size: 1rem; }
  .letter-box { width: 40px; height: 40px; font-size: 1.1rem; }
}
/* ── Virtual Keyboard ─────────────────────────────────── */
.keyboard {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
  max-width: 650px;
  margin-top: 1rem;
  padding: 15px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(32px);
  box-shadow: var(--shadow-lg), inset 0 0 20px hsla(0, 0%, 100%, 0.02);
  animation: fadeSlideUp 0.8s ease;
}

.key-row {
  display: flex;
  justify-content: center;
  gap: 8px;
  width: 100%;
}

.key {
  font-family: var(--font);
  font-weight: 800;
  font-size: 1.2rem;
  padding: 12px 0;
  flex: 1;
  max-width: 55px;
  height: 58px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  user-select: none;
  touch-action: manipulation;
}

.key:hover {
  background: hsla(0, 0%, 100%, 0.1);
  border-color: var(--accent-tertiary);
  transform: translateY(-4px) scale(1.05);
  box-shadow: 0 4px 15px hsla(190, 90%, 50%, 0.2);
}

.key:active {
  transform: scale(0.9);
  background: var(--accent-gradient);
  color: white;
  border-color: transparent;
}

.key.special {
  max-width: 90px;
  font-size: 0.85rem;
  background: hsla(0, 0%, 100%, 0.08);
  text-transform: uppercase;
}

.key.enter {
  background: var(--accent-gradient);
  color: white;
  border-color: transparent;
  box-shadow: 0 4px 15px hsla(245, 82%, 67%, 0.3);
}

.key.delete {
  background: hsla(0, 84%, 60%, 0.15);
  color: var(--red);
  border-color: hsla(0, 84%, 60%, 0.3);
}

.key.delete:hover {
  background: hsla(0, 84%, 60%, 0.25);
  border-color: var(--red);
  box-shadow: 0 4px 15px hsla(0, 84%, 60%, 0.2);
}

@media (max-width: 768px) {
  .key {
    height: 48px;
    font-size: 1rem;
    gap: 4px;
  }
  .key.special {
    max-width: 65px;
  }
}


/* ── Online Matchmaking ───────────────────────────────── */
.online-title {
  margin-top: -10px;
  margin-bottom: 30px !important;
  font-size: 1.8rem;
  color: var(--accent-tertiary);
}

.online-slots-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 30px;
}

.online-slot {
  height: 120px;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: all 0.4s ease;
  overflow: hidden;
  position: relative;
}

.online-slot.filled {
  border-color: var(--accent-primary);
  background: hsla(245, 82%, 67%, 0.1);
  box-shadow: 0 0 20px hsla(245, 82%, 67%, 0.2);
}

.slot-name {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text-primary);
  animation: fadeSlideUp 0.3s ease;
}

.slot-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

.loading-char {
  font-size: 2.5rem;
  font-weight: 900;
  color: hsla(215, 25%, 72%, 0.1);
  animation: slotCharPulse 1.5s infinite ease-in-out;
}

@keyframes slotCharPulse {
  0%, 100% { transform: scale(1) rotate(0); opacity: 0.1; }
  50% { transform: scale(1.3) rotate(15deg); opacity: 0.3; color: var(--accent-primary); }
}

.online-status {
  margin-bottom: 25px;
  color: var(--text-secondary);
}

.loading-dots {
  display: flex;
  justify-content: center;
  gap: 6px;
  margin-top: 10px;
}

.loading-dots span {
  width: 6px;
  height: 6px;
  background: var(--accent-primary);
  border-radius: 50%;
  animation: dotFlashing 1s infinite alternate;
}

.loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.loading-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes dotFlashing {
  0% { opacity: 0.2; transform: scale(0.8); }
  100% { opacity: 1; transform: scale(1.2); }
}

/* Responsive Grid for mobile */
@media (max-width: 480px) {
  .online-slots-container {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .online-slot { height: 100px; }
}