:root {

  --bg: #f7f7f5;
  --surface: #ffffff;
  --surface-2: #f1f1ee;

  --text: #202124;
  --muted: #888884;

  --border: #e3e3df;

  --correct: #2f7d32;
  --incorrect: #d93025;

  --timer-bg: #202124;
  --timer-text: #ffffff;

  --shadow:
    0 10px 30px rgba(0, 0, 0, 0.05);

}


/* DARK THEME */

[data-theme="dark"] {

  --bg: #151515;
  --surface: #1e1e1e;
  --surface-2: #282828;

  --text: #eeeeee;
  --muted: #8f8f8f;

  --border: #333333;

  --correct: #70b774;
  --incorrect: #ef6a60;

  --timer-bg: #eeeeee;
  --timer-text: #151515;

  --shadow:
    0 10px 35px rgba(0, 0, 0, 0.25);

}


/* RESET */

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  max-width: 100%;

  margin: 0;
  padding: 0;

  overflow-x: hidden;
}

body {

  min-width: 1024px;

  background: var(--bg);
  color: var(--text);

  font-family:
    Inter,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;

  -webkit-font-smoothing: antialiased;

  transition:
    background 180ms ease,
    color 180ms ease;
}


button {
  font: inherit;
}

button:focus-visible {
  outline: 2px solid var(--text);
  outline-offset: 3px;
}


/* APP */

.app {

  width: min(
    1200px,
    calc(100vw - 80px)
  );

  min-height: 100vh;

  margin: auto;

  overflow: hidden;

}


/* HEADER */

.topbar {

  height: 82px;

  display: flex;

  align-items: center;

  justify-content: space-between;

  border-bottom:
    1px solid var(--border);

}


.brand {

  display: flex;

  align-items: center;

  gap: 10px;

  font-size: 16px;

  font-weight: 600;

}


.brand-mark {

  width: 29px;
  height: 29px;

  display: grid;

  place-items: center;

  background: var(--text);

  color: var(--bg);

  font-size: 14px;

  font-weight: 700;

}


.top-actions {

  display: flex;

  align-items: center;

  gap: 12px;

}


/* MODE */

.mode-switch {

  display: flex;

  gap: 3px;

  padding: 3px;

  border:
    1px solid var(--border);

  background: var(--surface);

  border-radius: 8px;

}


.mode-btn {

  border: 0;

  background: transparent;

  color: var(--muted);

  padding: 7px 11px;

  cursor: pointer;

  border-radius: 6px;

  font-size: 13px;

}


.mode-btn:hover {

  color: var(--text);

}


.mode-btn.active {

  background: var(--text);

  color: var(--bg);

}


/* SETTINGS BUTTON */

.icon-btn {

  width: 37px;
  height: 37px;

  border:
    1px solid var(--border);

  background: var(--surface);

  color: var(--text);

  cursor: pointer;

  border-radius: 8px;

  font-size: 16px;

}


.icon-btn:hover {

  background:
    var(--surface-2);

}


/* STATS */

.stats {

  margin-top: 50px;

  display: flex;

  align-items: center;

  justify-content: center;

  gap: 42px;

}


.stat {

  min-width: 75px;

  text-align: center;

}


.stat span {

  display: block;

  margin-bottom: 5px;

  color: var(--muted);

  font-size: 10px;

  font-weight: 600;

  letter-spacing: 0.1em;

}


.stat strong {

  display: block;

  font-size: 22px;

  font-weight: 500;

  font-variant-numeric:
    tabular-nums;

}


/* WPM */

.primary-stat strong {

  font-size: 28px;

}


/* TIMER */

.timer-box {

  min-width: 92px;

  padding: 8px 13px;

  background: var(--timer-bg);

  color: var(--timer-text);

  border-radius: 8px;

  text-align: center;

  box-shadow: var(--shadow);

}


.timer-box span {

  display: block;

  margin-bottom: 2px;

  font-size: 9px;

  font-weight: 600;

  letter-spacing: 0.12em;

  opacity: 0.65;

}


.timer-box strong {

  display: block;

  font-size: 21px;

  font-weight: 600;

  font-variant-numeric:
    tabular-nums;

}


/* TYPING CONTAINER */

.typing-container {

  width: 100%;

  max-width: 1000px;

  min-height: 280px;

  margin: 62px auto 0;

  padding: 0 10px;

  cursor: text;

  overflow: hidden;

}


.typing-container:has(.typing-hint.hidden) {

  outline: 2px solid var(--text);

  outline-offset: 3px;

}


/* TEXT */

.text-display {

  width: 100%;

  max-width: 100%;

  overflow-wrap: break-word;

  word-break: normal;

  white-space: normal;

  font-family:
    "SFMono-Regular",
    Consolas,
    "Liberation Mono",
    monospace;

  font-size: 21px;

  line-height: 1.9;

  letter-spacing: 0.005em;

  user-select: none;

}


/* CHARACTER */

.char {

  position: relative;

  color: var(--muted);

}


.char.correct {

  color: var(--correct);

}


.char.incorrect {

  color: var(--incorrect);

  text-decoration: underline;

  text-decoration-thickness: 2px;

  text-underline-offset: 5px;

}


.char.current {

  color: var(--text);

}


.char.current::before {

  content: "";

  position: absolute;

  left: -1px;

  top: 8%;

  width: 2px;

  height: 84%;

  background: var(--text);

  animation:
    cursorBlink 1s infinite;

}


@keyframes cursorBlink {

  0%,
  45% {
    opacity: 1;
  }

  46%,
  100% {
    opacity: 0;
  }

}


/* HINT */

.typing-hint {

  margin-top: 32px;

  text-align: center;

  color: var(--muted);

  font-size: 13px;

}


.hidden {

  display: none !important;

}


/* CONTROLS */

.controls {

  display: flex;

  align-items: center;

  justify-content: center;

  gap: 18px;

  margin-top: 28px;

  color: var(--muted);

  font-size: 12px;

}


.secondary-btn,
.primary-btn {

  border:
    1px solid var(--border);

  padding: 9px 16px;

  cursor: pointer;

  border-radius: 7px;

  font-size: 13px;

}


.secondary-btn {

  background: var(--surface);

  color: var(--text);

}


.secondary-btn:hover {

  background:
    var(--surface-2);

}


.primary-btn {

  background: var(--text);

  color: var(--bg);

  border-color:
    var(--text);

}


kbd {

  padding: 2px 5px;

  border:
    1px solid var(--border);

  border-bottom-width: 2px;

  background: var(--surface);

  color: var(--text);

  border-radius: 4px;

  font-size: 10px;

}


/* RESULT */

.result-screen {

  width: min(800px, 100%);

  margin: 75px auto;

}


.result-heading {

  text-align: center;

}


.result-heading > span {

  color: var(--muted);

  font-size: 10px;

  font-weight: 600;

  letter-spacing: 0.12em;

}


.result-heading h1 {

  margin: 18px 0 8px;

  font-size: 56px;

  font-weight: 500;

  letter-spacing: -0.05em;

}


.result-heading p {

  margin: 0;

  color: var(--muted);

  font-size: 14px;

}


/* RESULT CARDS */

.result-grid {

  display: grid;

  grid-template-columns:
    repeat(4, 1fr);

  gap: 10px;

  margin-top: 48px;

}


.result-card {

  padding: 20px;

  background: var(--surface);

  border:
    1px solid var(--border);

  border-radius: 8px;

}


.result-card span {

  display: block;

  margin-bottom: 8px;

  color: var(--muted);

  font-size: 12px;

}


.result-card strong {

  font-size: 24px;

  font-weight: 500;

}


/* MISTAKES */

.mistakes {

  margin-top: 40px;

  border-top:
    1px solid var(--border);

  padding-top: 25px;

}


.section-title {

  margin-bottom: 15px;

  color: var(--muted);

  font-size: 11px;

  text-transform: uppercase;

  letter-spacing: 0.08em;

}


.mistake-list {

  display: flex;

  gap: 8px;

}


.mistake-item {

  min-width: 48px;

  padding: 10px;

  text-align: center;

  border:
    1px solid var(--border);

  background: var(--surface);

  border-radius: 6px;

}


.mistake-item strong {

  font-family:
    "SFMono-Regular",
    Consolas,
    monospace;

}


.mistake-item small {

  display: block;

  margin-top: 3px;

  color: var(--muted);

  font-size: 9px;

}


/* RESULT ACTIONS */

.result-actions {

  display: flex;

  justify-content: center;

  gap: 10px;

  margin-top: 40px;

}


/* SETTINGS */

.settings-panel {

  position: fixed;

  top: 0;

  right: 0;

  width: 350px;

  height: 100vh;

  padding: 28px;

  background: var(--surface);

  border-left:
    1px solid var(--border);

  z-index: 20;

  transform:
    translateX(100%);

  transition:
    transform 180ms ease;

  overflow-y: auto;

}


.settings-panel.open {

  transform:
    translateX(0);

}


.settings-header {

  display: flex;

  justify-content: space-between;

  align-items: center;

  margin-bottom: 40px;

}


.settings-header h2 {

  margin: 0;

  font-size: 18px;

  font-weight: 600;

}


.close-btn {

  border: 0;

  background: transparent;

  color: var(--muted);

  cursor: pointer;

  font-size: 25px;

}


/* SETTING GROUP */

.setting-group {

  margin-bottom: 30px;

}


.setting-group > label {

  display: block;

  margin-bottom: 12px;

  color: var(--muted);

  font-size: 12px;

}


/* DIFFICULTY */

.setting-options {

  display: flex;

  flex-direction: column;

  gap: 6px;

}


.difficulty-btn {

  border:
    1px solid var(--border);

  background: var(--surface);

  color: var(--text);

  padding: 10px 12px;

  text-align: left;

  cursor: pointer;

  border-radius: 6px;

  font-size: 13px;

}


.difficulty-btn.active {

  background: var(--text);

  color: var(--bg);

  border-color:
    var(--text);

}


/* THEME */

.theme-options {

  display: grid;

  grid-template-columns:
    1fr;

  gap: 8px;

}


.theme-btn {

  border:
    1px solid var(--border);

  background: var(--surface);

  color: var(--text);

  padding: 11px;

  cursor: pointer;

  border-radius: 6px;

  font-size: 13px;

}


.theme-btn span {

  margin-right: 6px;

}


.theme-btn.active {

  background: var(--text);

  color: var(--bg);

  border-color:
    var(--text);

}


/* CHECKBOX */

.checkbox-row {

  display: flex !important;

  align-items: center;

  gap: 9px;

  color: var(--text) !important;

  cursor: pointer;

}


.checkbox-row input {

  width: 15px;

  height: 15px;

}


.setting-description {

  margin: 8px 0 0 24px;

  color: var(--muted);

  font-size: 11px;

  line-height: 1.5;

}


/* OVERLAY */

.overlay {

  position: fixed;

  inset: 0;

  background:
    rgba(0, 0, 0, 0.2);

  z-index: 10;

  opacity: 0;

  pointer-events: none;

  transition:
    opacity 180ms ease;

}


.overlay.open {

  opacity: 1;

  pointer-events: auto;

}


/* MOBILE / SMALL SCREEN */

@media (max-width: 1023px) {

  body::before {

    content:
      "This typing tool is designed for desktop keyboards.";

    position: fixed;

    inset: 0;

    z-index: 9999;

    display: grid;

    place-items: center;

    padding: 40px;

    background: var(--bg);

    color: var(--text);

    text-align: center;

    font-size: 18px;

  }

}