/* Reset & Basic Setup */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-color: #323437;
  --main-color: #00f5d4; /* Cyberpunk Electric Cyan */
  --caret-color: #00f5d4;
  --sub-color: #646669; /* Grey text for untyped/background */
  --text-color: #ffffff; /* White for correct letters */
  --error-color: #f44336; /* Red for wrong letters */
  --error-bg-color: rgba(244, 67, 54, 0.15);
  --font-family: 'Karla', sans-serif;
  --card-bg: #2c2e31;
  --transition-speed: 0.25s;
}

body.light-theme {
  --bg-color: #f3f4f6; /* Soft light gray background */
  --main-color: #0ea5e9; /* Sky Blue/Teal for high readability */
  --caret-color: #0ea5e9;
  --sub-color: #7c8ba1; /* Muted slate gray */
  --text-color: #1e293b; /* Dark slate text */
  --card-bg: #ffffff; /* Premium white cards */
  --error-bg-color: rgba(244, 67, 54, 0.08);
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  font-family: var(--font-family);
  font-weight: 400;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.app-container {
  width: 100%;
  max-width: 1050px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 2rem 1.5rem;
}

/* Header Styling */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  user-select: none;
}

.keyboard-logo {
  font-size: 1.8rem;
  color: var(--main-color);
  animation: logo-bounce 2s infinite ease-in-out;
}

.logo-text {
  font-size: 1.8rem;
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--text-color);
}

.logo-accent {
  color: var(--main-color);
}

.nav-links {
  display: flex;
  gap: 1.5rem;
}

.nav-link {
  color: var(--sub-color);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: color var(--transition-speed) ease;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-color);
}

.icon-btn {
  background: none;
  border: none;
  color: var(--sub-color);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition-speed) ease, background-color var(--transition-speed) ease;
}

.icon-btn:hover {
  color: var(--main-color);
  background-color: rgba(255, 255, 255, 0.05);
}

body.light-theme .icon-btn:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

/* Light Theme Component Overrides */
body.light-theme .config-bar,
body.light-theme .result-card,
body.light-theme .chart-container,
body.light-theme .modal {
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
  border: 1px solid rgba(0, 0, 0, 0.05);
}

body.light-theme .key-badge {
  background-color: #e5e7eb;
  border-color: #d1d5db;
  color: var(--text-color);
}

body.light-theme .focus-overlay {
  background-color: rgba(243, 244, 246, 0.95);
}

/* Main Content & Typing Box */
.test-container, .results-container {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 2rem;
  position: relative;
}

/* Options Configuration Bar */
.config-bar {
  display: flex;
  background-color: var(--card-bg);
  padding: 0.5rem 1rem;
  border-radius: 8px;
  align-self: center;
  gap: 1.5rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
  font-size: 0.85rem;
  font-weight: 500;
  user-select: none;
  z-index: 10;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.config-bar.hidden {
  opacity: 0;
  transform: translateY(-10px);
  pointer-events: none;
}

.config-group {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.config-label {
  color: var(--sub-color);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.config-options {
  display: flex;
  gap: 0.5rem;
}

.config-btn {
  background: none;
  border: none;
  color: var(--sub-color);
  font-family: var(--font-family);
  font-weight: 600;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
  border-radius: 4px;
  transition: color 0.15s ease, background-color 0.15s ease;
}

.config-btn:hover {
  color: var(--text-color);
}

.config-btn.active {
  color: var(--main-color);
}

/* Live Info Bar */
.info-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--main-color);
  max-width: 950px;
  width: 100%;
  margin: 0 auto;
  padding: 0 0.5rem;
  height: 2.2rem;
}

.info-bar.hidden {
  visibility: hidden;
  opacity: 0;
}

.live-timer {
  font-family: monospace;
}

.live-wpm-box {
  font-size: 1.2rem;
  color: var(--sub-color);
}

#live-wpm {
  color: var(--text-color);
  font-weight: 600;
}

/* Typing Box Container */
.typing-box {
  position: relative;
  max-width: 950px;
  width: 100%;
  margin: 0 auto;
  font-size: 1.5rem;
  line-height: 2.2rem;
  height: 6.6rem; /* Limit to 3 lines (2.2 * 3) */
  overflow: hidden;
  outline: none;
  cursor: text;
}

/* Focus Overlay */
.focus-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(50, 52, 55, 0.95);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  color: var(--text-color);
  font-size: 1.2rem;
  z-index: 20;
  cursor: pointer;
  backdrop-filter: blur(2px);
  transition: opacity 0.25s ease;
}

.focus-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.focus-overlay i {
  font-size: 2rem;
  color: var(--main-color);
  animation: pulse 1.5s infinite;
}

/* Hidden input that captures keystrokes */
#hidden-input {
  position: absolute;
  top: -100px;
  left: -100px;
  opacity: 0;
  pointer-events: none;
}

/* Words wrapper containing characters */
.words-wrapper {
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  user-select: none;
  position: relative;
  transition: transform 0.2s ease;
}

.word {
  margin: 0 0.55rem;
  margin-bottom: 0.6rem;
  display: flex;
  position: relative;
  border-bottom: 2px solid transparent;
}

.word.error-word {
  border-bottom: 2px solid var(--error-color);
}

.char {
  color: var(--sub-color); /* Grey for untyped letters */
  position: relative;
  transition: color 0.1s ease;
}

.char.correct {
  color: var(--text-color); /* White for correct letters */
}

.char.incorrect {
  color: var(--error-color); /* Red for incorrect letters */
  background-color: var(--error-bg-color);
  border-radius: 2px;
}

.char.extra {
  color: #7e2a33;
}

/* Smooth custom caret (cursor) */
.caret {
  position: absolute;
  width: 2.5px;
  height: 1.8rem;
  background-color: var(--caret-color);
  border-radius: 1px;
  z-index: 5;
  top: 0.2rem;
  left: 0;
  animation: caret-blink 1s steps(2, start) infinite;
  transition: left 0.1s cubic-bezier(0.1, 0.9, 0.2, 1), top 0.1s cubic-bezier(0.1, 0.9, 0.2, 1);
}

.caret.typing {
  animation: none;
  opacity: 1;
}

@keyframes caret-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Controls underneath */
.controls-bar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

#restart-btn {
  background: none;
  border: none;
  color: var(--sub-color);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 0.75rem;
  border-radius: 50%;
  transition: color 0.2s, background-color 0.2s, transform 0.1s;
  display: flex;
  justify-content: center;
  align-items: center;
}

#restart-btn:hover {
  color: var(--text-color);
  background-color: rgba(255, 255, 255, 0.05);
}

#restart-btn:active {
  transform: scale(0.92);
}

.hint {
  color: var(--sub-color);
  font-size: 0.8rem;
}

.key-badge {
  background-color: var(--card-bg);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.75rem;
  border: 1px solid #3c3e41;
  color: var(--text-color);
}

/* Results Screen Styling */
.results-container {
  max-width: 950px;
  width: 100%;
  margin: 0 auto;
}

.results-title {
  font-size: 1.6rem;
  font-weight: 500;
  color: var(--sub-color);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 0.5rem;
}

.results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.5fr;
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .results-grid {
    grid-template-columns: 1fr;
  }
}

.result-card {
  background-color: var(--card-bg);
  border-radius: 12px;
  padding: 1.75rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.result-card.main-card {
  align-items: center;
}

.result-label {
  font-size: 1rem;
  color: var(--sub-color);
  text-transform: lowercase;
  margin-bottom: 0.5rem;
}

.result-value {
  font-size: 4rem;
  font-weight: 700;
  color: var(--main-color);
  line-height: 1;
}

.stats-card {
  justify-content: space-between;
  gap: 1.25rem;
}

.stats-header {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-color);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.comparison-bubble {
  background: rgba(0, 245, 212, 0.08);
  border: 1px solid rgba(0, 245, 212, 0.2);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.percentile-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.15rem;
}

.comparison-number {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--main-color);
  display: flex;
  align-items: baseline;
  gap: 0.35rem;
}

.comparison-label-text {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--sub-color);
  text-transform: lowercase;
}

.rank-badge {
  background-color: var(--main-color);
  color: #1a1b1c;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

body.light-theme .rank-badge {
  color: #ffffff;
}

.comparison-text {
  font-size: 0.85rem;
  color: var(--text-color);
  opacity: 0.85;
  line-height: 1.4;
}

.stats-breakdown {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.05);
  padding-bottom: 0.35rem;
}

.stat-name {
  color: var(--sub-color);
}

.stat-val {
  font-weight: 600;
  color: var(--text-color);
}

/* WPM Chart Container */
.chart-container {
  background-color: var(--card-bg);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  height: 250px;
  position: relative;
}

.chart-container canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
}

/* Results Actions buttons */
.results-actions {
  display: flex;
  justify-content: center;
}

.primary-btn {
  background-color: var(--main-color);
  color: #1e1e1e;
  border: none;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-family);
  font-size: 1rem;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  transition: transform 0.1s, filter 0.2s;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.primary-btn:hover {
  filter: brightness(1.1);
}

.primary-btn:active {
  transform: scale(0.97);
}

/* Custom Modal Options */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 100;
  opacity: 1;
  transition: opacity 0.25s ease;
}

.modal-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.modal {
  background-color: var(--card-bg);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
  max-width: 400px;
  width: 90%;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  border: 1px solid rgba(255, 255, 255, 0.05);
  transform: scale(1);
  transition: transform 0.25s cubic-bezier(0.1, 0.9, 0.2, 1.1);
}

.modal-overlay.hidden .modal {
  transform: scale(0.85);
}

.modal h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--main-color);
}

.modal p {
  color: var(--sub-color);
  font-size: 0.95rem;
  line-height: 1.4;
}

.modal input {
  background-color: var(--bg-color);
  border: 2px solid var(--sub-color);
  border-radius: 6px;
  padding: 0.75rem;
  color: var(--text-color);
  font-family: monospace;
  font-size: 1.2rem;
  text-align: center;
  outline: none;
  transition: border-color 0.2s;
}

.modal input:focus {
  border-color: var(--main-color);
}

.modal-buttons {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.modal-btn {
  padding: 0.6rem 1.25rem;
  font-family: var(--font-family);
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 6px;
  cursor: pointer;
  border: none;
  transition: background-color 0.15s, color 0.15s, transform 0.1s;
}

.modal-btn.primary {
  background-color: var(--main-color);
  color: #1e1e1e;
}

.modal-btn.primary:hover {
  filter: brightness(1.1);
}

.modal-btn.secondary {
  background-color: transparent;
  color: var(--sub-color);
}

.modal-btn.secondary:hover {
  color: var(--text-color);
}

.modal-btn:active {
  transform: scale(0.95);
}

/* Footer styling */
footer {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  color: var(--sub-color);
  font-size: 0.8rem;
  margin-top: 2rem;
}

.footer-middle {
  display: flex;
  justify-content: center;
}

.footer-middle a:hover {
  text-decoration: underline !important;
}

.footer-right {
  display: flex;
  justify-content: flex-end;
}

.footer-item {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* Helper hidden class */
.hidden {
  display: none !important;
}

/* Animations */
@keyframes logo-bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

@keyframes pulse {
  0% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.08); opacity: 1; }
  100% { transform: scale(1); opacity: 0.7; }
}

/* Mobile Blocker Styling */
.mobile-blocker {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-color: var(--bg-color);
  color: var(--text-color);
  z-index: 1000;
  justify-content: center;
  align-items: center;
  padding: 2rem;
  text-align: center;
}

.mobile-blocker-content {
  max-width: 400px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.desktop-icon {
  font-size: 4rem;
  color: var(--main-color);
  margin-bottom: 0.5rem;
}

.mobile-blocker h2 {
  font-size: 1.8rem;
  font-weight: 600;
  color: var(--text-color);
}

.mobile-blocker p {
  color: var(--sub-color);
  font-size: 1rem;
  line-height: 1.6;
}

.browser-info {
  margin-top: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--sub-color);
  background-color: var(--card-bg);
  padding: 0.5rem 1rem;
  border-radius: 20px;
}

.browser-logo {
  width: 20px;
  height: 20px;
  object-fit: contain;
}

/* Media Query to show blocker on screens less than 769px */
@media (max-width: 768px) {
  .mobile-blocker {
    display: flex;
  }
  .app-container header,
  .app-container main {
    display: none !important;
  }
  .app-container {
    justify-content: flex-end; /* Push footer to the bottom */
    padding-bottom: 2rem;
  }
  footer {
    position: relative;
    z-index: 1001;
    display: flex;
    justify-content: center;
  }
  .footer-left,
  .footer-right {
    display: none !important;
  }
}