:root {
  color-scheme: dark;
  --bg: #101315;
  --bg-soft: #171c20;
  --panel: #1d2429;
  --panel-strong: #252e34;
  --text: #f3f7f4;
  --muted: #a7b3ae;
  --line: #344047;
  --accent: #d6a548;
  --accent-2: #56b6a7;
  --danger: #e66a5f;
  --ok: #72c27a;
  --shadow: 0 20px 55px rgba(0, 0, 0, .3);
  --shadow-soft: 0 10px 30px rgba(0, 0, 0, .22);
  --glow: 0 0 0 1px color-mix(in srgb, var(--accent) 36%, transparent), 0 0 24px color-mix(in srgb, var(--accent) 18%, transparent);
  --radius: 8px;
  --font-body: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-display: "Cinzel", Georgia, serif;
  --font-mono: "Fira Code", Consolas, monospace;
}

[data-theme="light"] {
  color-scheme: light;
  --bg: #f7f2e9;
  --bg-soft: #fffaf1;
  --panel: #ffffff;
  --panel-strong: #f0e5d1;
  --text: #1c2523;
  --muted: #65706a;
  --line: #d9cdb9;
  --accent: #a86f1e;
  --accent-2: #147d72;
  --danger: #b43f38;
  --ok: #3d8f49;
  --shadow: 0 18px 45px rgba(78, 58, 28, .14);
}

[data-contrast="high"] {
  --bg: #000;
  --bg-soft: #080808;
  --panel: #111;
  --panel-strong: #1c1c1c;
  --text: #fff;
  --muted: #f2f2f2;
  --line: #fff;
  --accent: #ffd400;
  --accent-2: #00e5ff;
  --danger: #ff6767;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 0, rgba(214, 165, 72, .15), transparent 30rem),
    radial-gradient(circle at 88% 8%, rgba(86, 182, 167, .08), transparent 28rem),
    linear-gradient(135deg, var(--bg), var(--bg-soft));
  color: var(--text);
  font-family: var(--font-body);
}

button, input {
  font: inherit;
}

button {
  cursor: pointer;
}

.hidden, [hidden] {
  display: none !important;
}

.card {
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 42%, var(--panel)), var(--panel));
  border: 1px solid color-mix(in srgb, var(--line) 74%, transparent);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.welcome-screen {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 24px;
  overflow: auto;
  background:
    linear-gradient(rgba(16, 19, 21, .72), rgba(16, 19, 21, .92)),
    repeating-linear-gradient(45deg, transparent 0 18px, rgba(214, 165, 72, .08) 18px 20px),
    var(--bg);
}

.welcome-bg-pattern {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: .4;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 58px 58px;
  mask-image: radial-gradient(circle at center, #000, transparent 72%);
}

.welcome-content {
  width: min(760px, 100%);
  text-align: center;
  position: relative;
}

.welcome-emblem {
  width: 116px;
  aspect-ratio: 1;
  margin: 0 auto 24px;
  position: relative;
  display: grid;
  place-items: center;
}

.emblem-ring {
  position: absolute;
  inset: 0;
  border: 2px solid var(--accent);
  border-radius: 50%;
}

.emblem-ring.inner {
  inset: 14px;
  border-color: var(--accent-2);
}

.emblem-icon {
  font-size: 40px;
  color: var(--accent);
}

.welcome-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.6rem, 8vw, 5.6rem);
  line-height: .95;
  letter-spacing: 0;
}

.welcome-subtitle-text {
  color: var(--accent);
}

.welcome-tagline,
.welcome-credit,
.section-desc,
.learn-section-intro {
  color: var(--muted);
}

.welcome-facts {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 28px 0;
}

.fact-chip,
.digraph-chip,
.legend-item {
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 85%, transparent);
  border-radius: 999px;
  padding: 8px 12px;
}

.btn-welcome,
.btn-primary,
.btn-secondary,
.restart-btn,
.btn-danger,
.btn-danger-sm,
.toggle-btn,
.nav-btn,
.learn-nav-btn,
.icon-btn,
.logo-btn {
  min-height: 42px;
  border: 1px solid color-mix(in srgb, var(--line) 78%, transparent);
  border-radius: var(--radius);
  color: var(--text);
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 58%, var(--panel)), var(--panel));
  box-shadow: 0 1px 0 rgba(255, 255, 255, .04) inset;
  transition: transform .22s ease, border-color .22s ease, background .22s ease, box-shadow .22s ease, color .22s ease;
}

.btn-welcome:hover,
.btn-primary:hover,
.btn-secondary:hover,
.restart-btn:hover,
.nav-btn:hover,
.learn-nav-btn:hover,
.toggle-btn:hover,
.icon-btn:hover,
.logo-btn:hover,
.key:hover,
.vocab-card:hover,
.diff-card:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  box-shadow: var(--glow);
}

.btn-welcome:focus-visible,
.btn-primary:focus-visible,
.btn-secondary:focus-visible,
.restart-btn:focus-visible,
.btn-danger:focus-visible,
.btn-danger-sm:focus-visible,
.toggle-btn:focus-visible,
.nav-btn:focus-visible,
.learn-nav-btn:focus-visible,
.icon-btn:focus-visible,
.logo-btn:focus-visible,
.practice-input:focus-visible,
.name-input:focus-visible {
  outline: 2px solid color-mix(in srgb, var(--accent) 82%, white);
  outline-offset: 3px;
}

.btn-welcome,
.btn-primary {
  padding: 14px 22px;
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 58%, var(--accent-2)));
  color: #111;
  font-weight: 800;
}

.btn-arrow {
  margin-left: 10px;
}

.app {
  width: min(1180px, calc(100% - 28px));
  margin: 0 auto;
  padding: 16px 0 48px;
}

.header {
  top: 0;
  z-index: 8;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 0 10px;
  backdrop-filter: blur(18px);
}

.logo-btn {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 12px;
  text-align: left;
  background: color-mix(in srgb, var(--panel) 76%, transparent);
  border-color: color-mix(in srgb, var(--line) 72%, transparent);
}

.logo-icon {
  width: 40px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: #111;
  box-shadow: 0 0 18px color-mix(in srgb, var(--accent) 22%, transparent);
}

.logo-title {
  display: block;
  font-family: var(--font-display);
  font-weight: 900;
  line-height: 1.05;
}

.logo-sub {
  display: block;
  color: var(--muted);
  font-size: .82rem;
}

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

.streak-badge {
  display: flex;
  align-items: center;
  gap: 7px;
  min-height: 42px;
  padding: 8px 13px;
  border: 1px solid color-mix(in srgb, var(--accent) 34%, var(--line));
  border-radius: 999px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 10%, var(--panel-strong)), var(--panel));
  box-shadow: 0 0 18px color-mix(in srgb, var(--accent) 10%, transparent);
}

.streak-num {
  font-weight: 900;
}

.icon-btn {
  width: 42px;
  aspect-ratio: 1;
}

.main-nav,
.learn-nav,
.btn-toggle-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.main-nav {
  margin: 12px 0 26px;
}

.nav-btn,
.learn-nav-btn,
.toggle-btn {
  padding: 10px 14px;
  font-weight: 800;
}

.nav-btn.active,
.learn-nav-btn.active,
.toggle-btn.active {
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 72%, var(--accent-2)));
  color: #111;
  border-color: var(--accent);
  box-shadow: var(--glow);
}

.tab-content {
  animation: show .22s ease;
}

@keyframes show {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.section-header {
  margin-bottom: 18px;
}

.section-title,
.learn-section-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 4vw, 2.7rem);
}

.section-title-sm {
  margin: 0 0 12px;
  font-size: 1.25rem;
}

.key-differences-bar,
.progress-overview,
.special-chars-grid,
.pronunciation-grid,
.vocab-grid,
.achievements-grid {
  display: grid;
  gap: 14px;
}

.key-differences-bar {
  grid-template-columns: repeat(3, 1fr);
}

.diff-card {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 8px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.diff-from,
.diff-to,
.sc-key-badge,
.sc-char,
.dt-char {
  font-family: var(--font-mono);
  font-weight: 900;
  color: var(--accent);
}

.diff-from,
.diff-to {
  font-size: 2rem;
}

.diff-label {
  grid-column: 1 / -1;
  margin: 2px 0 0;
  color: var(--muted);
}

.keyboard-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 18px 0;
}

.legend-swatch {
  display: inline-block;
  width: 12px;
  aspect-ratio: 1;
  margin-right: 7px;
  border-radius: 3px;
  vertical-align: -1px;
}

.legend-swatch.special { background: var(--accent); }
.legend-swatch.digraph { background: var(--accent-2); }
.legend-swatch.normal-key { background: var(--panel-strong); border: 1px solid var(--line); }

.keyboard-wrap,
.mini-keyboard {
  display: grid;
  gap: 6px;
  width: 100%;
  overflow-x: auto;
  padding: 16px;
  border: 1px solid color-mix(in srgb, var(--line) 72%, transparent);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 32%, transparent), transparent),
    color-mix(in srgb, var(--panel) 86%, transparent);
  box-shadow: var(--shadow-soft);
}

.kb-row {
  display: flex;
  justify-content: center;
  gap: 6px;
  min-width: 900px;
}

.key {
  width: 56px;
  min-height: 54px;
  border: 1px solid color-mix(in srgb, var(--line) 78%, transparent);
  border-radius: 7px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 86%, #fff 2%), var(--panel));
  color: var(--text);
  box-shadow: inset 0 -3px rgba(0, 0, 0, .18), 0 8px 16px rgba(0, 0, 0, .12);
  display: grid;
  align-content: center;
  justify-items: center;
  padding: 5px;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease, background .2s ease;
}

/* Utility / modifier keys */
.key.util {
  background: linear-gradient(180deg, color-mix(in srgb, var(--bg-soft) 80%, var(--panel-strong)), var(--panel));
  color: var(--muted);
  cursor: default;
  font-size: .72rem;
}
.key.util:hover {
  transform: none;
  border-color: color-mix(in srgb, var(--line) 78%, transparent);
  box-shadow: inset 0 -3px rgba(0,0,0,.18), 0 8px 16px rgba(0,0,0,.12);
}
.key.util .latin { display: none; }
.key.util .mara { font-size: .78rem; font-weight: 700; }

/* Sized utility keys */
.key.wide   { width: 80px; }
.key.tab    { width: 72px; }
.key.caps   { width: 80px; }
.key.enter  { width: 96px; }
.key.shift  { width: 106px; }
.key.rshift { width: 130px; }
.key.special {
  border-color: color-mix(in srgb, var(--accent) 78%, white 8%);
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 18%, var(--panel-strong)), var(--panel));
  box-shadow: inset 0 -3px rgba(0, 0, 0, .18), 0 0 0 1px color-mix(in srgb, var(--accent) 45%, transparent);
}

.key.digraph {
  border-color: color-mix(in srgb, var(--accent-2) 78%, white 8%);
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent-2) 16%, var(--panel-strong)), var(--panel));
}

.key.active-next {
  outline: 0;
  transform: translateY(-2px);
  border-color: #39ff14;
  background: linear-gradient(180deg, color-mix(in srgb, #39ff14 22%, var(--panel-strong)), var(--panel));
  color: #39ff14;
  box-shadow:
    inset 0 -3px rgba(0, 0, 0, .18),
    0 0 0 2px rgba(57, 255, 20, 0.7),
    0 0 22px rgba(57, 255, 20, 0.45);
  animation: keyPulse 1.1s ease-in-out infinite;
}

.key.active-next .latin,
.key.active-next .mara {
  color: #39ff14;
}

@keyframes keyPulse {
  0%, 100% { box-shadow: inset 0 -3px rgba(0, 0, 0, .18), 0 0 0 2px rgba(57, 255, 20, 0.6), 0 0 18px rgba(57, 255, 20, 0.35); }
  50%       { box-shadow: inset 0 -3px rgba(0, 0, 0, .18), 0 0 0 3px rgba(57, 255, 20, 0.9), 0 0 36px rgba(57, 255, 20, 0.6); }
}

.key .latin {
  font-family: var(--font-mono);
  font-size: .75rem;
  color: var(--muted);
  line-height: 1;
}

.key .mara {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 900;
  line-height: 1.1;
}

.key-info-panel,
.digraph-note,
.practice-intro-card,
.practice-controls,
.practice-area,
.alphabet-note,
.pron-notes,
.digraph-section,
.leaderboard-wrap,
.danger-zone {
  margin-top: 16px;
  padding: 18px;
}

.practice-intro-card {
  margin-bottom: 18px;
  border-color: color-mix(in srgb, var(--accent) 42%, var(--line));
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 10%, transparent), transparent 54%),
    var(--panel);
}

.practice-intro-card h3 {
  margin: 0 0 8px;
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 1.35rem;
}

.practice-intro-card p {
  max-width: 820px;
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.control-group {
  margin-bottom: 14px;
}

.control-label {
  display: block;
  margin-bottom: 7px;
  color: var(--muted);
  font-weight: 800;
}

.control-options {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.practice-controls {
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 38%, transparent), transparent),
    color-mix(in srgb, var(--panel) 94%, transparent);
  border-color: color-mix(in srgb, var(--line) 70%, transparent);
}

.btn-toggle-group {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  border: 1px solid color-mix(in srgb, var(--line) 62%, transparent);
  border-radius: calc(var(--radius) + 2px);
  background: color-mix(in srgb, var(--bg-soft) 72%, transparent);
}

.btn-toggle-group .toggle-btn {
  min-height: 36px;
  border-color: transparent;
  background: transparent;
  box-shadow: none;
}

.btn-toggle-group .toggle-btn:hover {
  background: color-mix(in srgb, var(--panel-strong) 72%, transparent);
  border-color: color-mix(in srgb, var(--line) 48%, transparent);
}

.btn-toggle-group .toggle-btn.active {
  background: linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent) 70%, var(--accent-2)));
  color: #111;
  box-shadow: 0 0 18px color-mix(in srgb, var(--accent) 20%, transparent);
}

.checkbox-wrap input {
  accent-color: var(--accent);
}

.checkbox-wrap {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.timer-wrap {
  display: grid;
  place-items: center;
  margin: 16px 0;
}

.timer-ring-wrap {
  position: relative;
  width: 140px;
  aspect-ratio: 1;
}

.timer-ring {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.timer-track,
.timer-progress {
  fill: none;
  stroke-width: 8;
}

.timer-track { stroke: var(--line); }
.timer-progress {
  stroke: var(--accent);
  stroke-linecap: round;
  stroke-dasharray: 276.46;
  stroke-dashoffset: 0;
}

.timer-inner {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
}

.timer-num {
  font-size: 2rem;
  font-weight: 900;
}

.timer-unit {
  color: var(--muted);
}

.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, minmax(120px, 1fr));
  justify-content: stretch;
  align-items: center;
  gap: 12px;
  padding: 0;
  border: 0;
  border-radius: var(--radius);
  background: transparent;
}

.stat-block {
  min-height: 76px;
  display: grid;
  place-items: center;
  padding: 12px;
  text-align: center;
  border: 1px solid color-mix(in srgb, var(--line) 68%, transparent);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 40%, transparent), transparent),
    var(--panel);
  box-shadow: 0 10px 26px rgba(0, 0, 0, .16);
}

.stat-val {
  display: block;
  font-size: 1.55rem;
  font-weight: 900;
  color: var(--accent);
  line-height: 1;
}

.stat-name {
  color: var(--muted);
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .04em;
  text-transform: uppercase;
}

.stat-divider {
  display: none;
}

.typing-progress-wrap {
  position: relative;
  margin: 16px 0;
  height: 15px;
  border: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
  border-radius: 999px;
  overflow: hidden;
  background: color-mix(in srgb, var(--bg-soft) 78%, transparent);
  box-shadow: inset 0 1px 8px rgba(0, 0, 0, .22);
}

.typing-progress-fill {
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--accent-2), var(--accent));
  border-radius: inherit;
  transition: width .28s ease;
  box-shadow: 0 0 18px color-mix(in srgb, var(--accent) 24%, transparent);
}

.typing-progress-pct {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: .78rem;
  font-weight: 900;
  color: var(--text);
  text-shadow: 0 1px 6px rgba(0, 0, 0, .45);
}

.practice-word-display {
  min-height: 60px;
  padding: 18px 22px;
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 32%, transparent), transparent),
    var(--bg-soft);
  font-family: var(--font-mono);
  font-size: clamp(.95rem, 2vw, 1.25rem);
  line-height: 2;
  letter-spacing: .01em;
  border: 1px solid color-mix(in srgb, var(--line) 52%, transparent);
  box-shadow: inset 0 1px 18px rgba(0, 0, 0, .16);
  word-break: break-word;
  white-space: normal;
  overflow-wrap: break-word;
}

/* Line-by-line rows */
.line-row {
  display: block;
  line-height: 2;
  transition: opacity .2s ease;
}
.line-done {
  opacity: .35;
}
.line-active {
  opacity: 1;
}
.line-next {
  opacity: .28;
}

.char {
  position: relative;
  border-bottom: 2px solid transparent;
  border-radius: 4px;
  transition: color .18s ease, background .18s ease, border-color .18s ease;
}

.char.correct { color: color-mix(in srgb, var(--ok) 88%, white); }
.char.wrong {
  color: color-mix(in srgb, var(--danger) 90%, white);
  background: color-mix(in srgb, var(--danger) 16%, transparent);
}
.char.current {
  color: var(--text);
  border-color: transparent;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
}

.char.current::after {
  content: "";
  position: absolute;
  right: -3px;
  top: 12%;
  width: 2px;
  height: 76%;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 54%, transparent);
  animation: caretBlink 1s steps(2, start) infinite;
}

@keyframes caretBlink {
  50% { opacity: 0; }
}

.practice-hint-bar {
  min-height: 28px;
  margin: 12px 0;
  color: var(--accent);
  font-weight: 800;
}

.practice-input-wrap {
  display: flex;
  gap: 10px;
  align-items: flex-start;
}

.input-btn-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex-shrink: 0;
}

.practice-input,
.name-input {
  width: 100%;
  min-height: 46px;
  padding: 11px 13px;
  border: 1px solid color-mix(in srgb, var(--line) 72%, transparent);
  border-radius: var(--radius);
  color: var(--text);
  background: color-mix(in srgb, var(--bg-soft) 86%, transparent);
  transition: border-color .22s ease, box-shadow .22s ease, background .22s ease;
}

.practice-input::placeholder,
.name-input::placeholder {
  color: color-mix(in srgb, var(--muted) 72%, transparent);
}

.practice-input:focus,
.name-input:focus {
  border-color: color-mix(in srgb, var(--accent) 82%, white 4%);
  background: color-mix(in srgb, var(--panel) 82%, transparent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 16%, transparent), 0 0 22px color-mix(in srgb, var(--accent) 12%, transparent);
}

.restart-btn,
.btn-secondary {
  padding: 10px 14px;
  white-space: nowrap;
}

.practice-actions {
  display: flex;
  justify-content: flex-end;
  margin: 14px 0;
}

.motivational {
  min-height: 0px;
  margin-top: 0px;
  color: var(--accent-2);
  font-weight: 900;
  text-align: center;
}

.mini-kb-title {
  color: var(--muted);
  margin-bottom: 8px;
  font-weight: 800;
}

.mini-keyboard .key {
  width: 46px;
  min-height: 44px;
}

.mini-keyboard .key.space {
  width: 220px;
  letter-spacing: .03em;
}

.alphabet-grid,
.pronunciation-grid,
.vocab-grid,
.achievements-grid {
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
}

.alphabet-card,
.pron-card,
.vocab-card,
.achievement-card,
.pov-card,
.special-char-card {
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.alphabet-letter,
.pron-symbol {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--accent);
}

.special-chars-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.sc-key-badge {
  display: inline-grid;
  place-items: center;
  width: 44px;
  aspect-ratio: 1;
  border-radius: 7px;
  border: 1px solid var(--accent);
}

.sc-examples,
.vocab-meta,
.achievement-desc {
  color: var(--muted);
}

.sc-word {
  display: block;
  margin-top: 5px;
}

.digraph-table {
  display: grid;
  gap: 1px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.dt-row {
  display: grid;
  grid-template-columns: .8fr 1fr 2fr 1.2fr;
  gap: 10px;
  padding: 10px;
  background: var(--bg-soft);
}

.dt-header {
  font-weight: 900;
  background: var(--panel-strong);
}

kbd {
  display: inline-grid;
  place-items: center;
  min-width: 24px;
  min-height: 24px;
  padding: 1px 5px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--panel-strong);
  font-family: var(--font-mono);
}

.progress-overview {
  grid-template-columns: repeat(auto-fit, minmax(145px, 1fr));
  margin-bottom: 22px;
}

.pov-card {
  text-align: center;
}

.pov-icon {
  font-size: 1.45rem;
}

.pov-value {
  font-size: 2rem;
  font-weight: 900;
  color: var(--accent);
}

.pov-label {
  color: var(--muted);
}

.achievement-card.locked {
  opacity: .55;
}

.achievement-icon {
  font-size: 1.8rem;
}

.achievement-name {
  margin: 8px 0 4px;
  font-weight: 900;
}

.lb-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.leaderboard-table {
  display: grid;
  gap: 8px;
  margin: 12px 0;
}

.lb-row {
  display: grid;
  grid-template-columns: 38px 1fr repeat(3, auto);
  gap: 10px;
  align-items: center;
  padding: 10px;
  border-radius: var(--radius);
  background: var(--bg-soft);
}

.lb-add-form {
  display: flex;
  gap: 10px;
}

.btn-danger,
.btn-danger-sm {
  background: color-mix(in srgb, var(--danger) 18%, var(--panel));
  border-color: var(--danger);
}

.btn-danger {
  padding: 10px 14px;
  color: var(--text);
}

.btn-danger-sm {
  padding: 8px 10px;
  color: var(--text);
}

.achievement-popup,
.completion-overlay {
  position: fixed;
  z-index: 30;
}

.achievement-popup {
  right: 18px;
  bottom: 18px;
  width: min(420px, calc(100% - 36px));
}

.ach-pop-content {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px;
  border: 1px solid var(--accent);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.ach-pop-badge {
  font-size: 2rem;
}

.ach-pop-header,
.ach-pop-name,
.ach-pop-desc {
  margin: 0;
}

.ach-pop-header {
  color: var(--accent);
  font-weight: 900;
}

.ach-pop-desc {
  color: var(--muted);
}

.ach-pop-close {
  margin-left: auto;
  border: 0;
  background: transparent;
  color: var(--text);
  font-size: 1.2rem;
}

.completion-overlay {
  inset: 0;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(0, 0, 0, .66);
}

.completion-box {
  width: min(560px, 100%);
  position: relative;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  text-align: center;
  box-shadow: var(--shadow);
}

.completion-emoji {
  font-size: 3rem;
}

.completion-title {
  margin: 8px 0;
  font-family: var(--font-display);
}

.completion-stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin: 18px 0;
}

.cs-block {
  padding: 12px 8px;
  border-radius: var(--radius);
  background: var(--bg-soft);
}

.cs-val {
  display: block;
  font-weight: 900;
  color: var(--accent);
}

.cs-label {
  color: var(--muted);
  font-size: .82rem;
}

.completion-actions {
  display: flex;
  justify-content: center;
  gap: 10px;
}

.completion-confetti {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.confetti-piece {
  position: absolute;
  top: -10px;
  width: 8px;
  height: 14px;
  background: var(--accent);
  animation: fall 1.8s ease-in forwards;
}

@keyframes fall {
  to { transform: translateY(620px) rotate(540deg); opacity: 0; }
}

.site-footer {
  margin-top: 42px;
  padding: 22px;
  border: 1px solid color-mix(in srgb, var(--line) 70%, transparent);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 12%, transparent), transparent 42%),
    color-mix(in srgb, var(--panel) 92%, transparent);
  box-shadow: var(--shadow);
}

.footer-brand {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: center;
  padding-bottom: 18px;
  border-bottom: 1px solid color-mix(in srgb, var(--line) 66%, transparent);
}

.footer-icon {
  width: 50px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: #111;
  font-size: 1.35rem;
}

.footer-brand h2 {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 3vw, 1.8rem);
}

.footer-brand p,
.footer-block p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 16px;
}

.footer-block {
  min-height: 138px;
  padding: 16px;
  border: 1px solid color-mix(in srgb, var(--line) 64%, transparent);
  border-radius: var(--radius);
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 24%, transparent), var(--bg-soft));
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}

.footer-block:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 54%, var(--line));
  box-shadow: 0 12px 28px rgba(0, 0, 0, .18);
}

.footer-block h3 {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 1.1rem;
  line-height: 1.2;
}

.footer-block a {
  color: inherit;
  text-decoration: none;
}

.footer-block a:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.info-page {
  width: min(980px, calc(100% - 28px));
  margin: 0 auto;
  padding: 22px 0 48px;
}

.info-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 13px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  color: var(--text);
  background: var(--panel);
  text-decoration: none;
  font-weight: 800;
}

.back-link:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.info-hero {
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 14%, transparent), transparent 48%),
    var(--panel);
  box-shadow: var(--shadow);
}

.info-kicker {
  margin: 0 0 8px;
  color: var(--accent);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: .08em;
}

.info-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 7vw, 4rem);
}

.info-lede {
  max-width: 760px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 1.16rem;
  line-height: 1.7;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin-top: 18px;
}

.info-card {
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}

.info-card.wide {
  grid-column: 1 / -1;
}

.info-card h2,
.info-card h3 {
  margin: 0 0 10px;
  color: var(--accent);
}

.info-card p,
.info-card li {
  color: var(--muted);
  line-height: 1.65;
}

.info-card p:last-child,
.info-card ul:last-child,
.info-card ol:last-child {
  margin-bottom: 0;
}

.info-list {
  padding-left: 22px;
}

.contact-method {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: start;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg-soft);
}

.contact-method + .contact-method {
  margin-top: 12px;
}

.contact-icon {
  width: 38px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--accent);
  color: #111;
  font-weight: 900;
}

/* Keyman download card */
.info-card-keyman {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  border-color: #39ff14 !important;
  background:
    linear-gradient(135deg, color-mix(in srgb, #39ff14 8%, transparent), transparent 52%),
    var(--panel) !important;
  box-shadow: 0 0 0 1px rgba(57,255,20,.25), 0 0 32px rgba(57,255,20,.08) !important;
}

.keyman-badge {
  flex-shrink: 0;
  width: 52px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  font-size: 1.6rem;
  border-radius: 12px;
  border: 2px solid #39ff14;
  background: rgba(57,255,20,.1);
  color: #39ff14;
}

.keyman-body {
  flex: 1;
}

.keyman-body h2 {
  color: #39ff14 !important;
}

.btn-keyman {
  display: inline-block;
  margin: 14px 0 10px;
  padding: 11px 20px;
  border-radius: var(--radius);
  border: 2px solid #39ff14;
  background: rgba(57,255,20,.12);
  color: #39ff14;
  font-weight: 800;
  font-size: .95rem;
  text-decoration: none;
  transition: background .2s ease, box-shadow .2s ease, transform .2s ease;
}

.btn-keyman:hover {
  background: rgba(57,255,20,.22);
  box-shadow: 0 0 22px rgba(57,255,20,.35);
  transform: translateY(-1px);
}

.keyman-note {
  font-size: .88rem;
  color: var(--muted);
  margin: 0;
}

/* Info page footer (about, help, contact) */
.info-footer {
  margin-top: 48px;
  padding: 20px 0;
  border-top: 1px solid color-mix(in srgb, var(--line) 50%, transparent);
  text-align: center;
  color: var(--muted);
  font-size: .88rem;
}

.info-footer a {
  color: var(--accent);
  text-decoration: none;
}

.info-footer a:hover {
  text-decoration: underline;
}

/* Main app footer copyright row */
.footer-copyright {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid color-mix(in srgb, var(--line) 40%, transparent);
  text-align: center;
  color: var(--muted);
  font-size: .84rem;
}

.footer-copyright a {
  color: var(--accent);
  text-decoration: none;
}

.footer-copyright a:hover {
  text-decoration: underline;
}

/* Modern typing-platform polish layer */
html {
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background:
    radial-gradient(circle at 50% -8%, color-mix(in srgb, var(--accent) 13%, transparent), transparent 28rem),
    radial-gradient(circle at 100% 0, color-mix(in srgb, var(--accent-2) 8%, transparent), transparent 30rem),
    linear-gradient(135deg, #0c1012, var(--bg) 48%, #12191c);
}

.app {
  width: min(1160px, calc(100% - 28px));
}

.header {
  margin-top: 8px;
  padding: 10px;
  border: 1px solid color-mix(in srgb, var(--line) 46%, transparent);
  border-radius: 10px;
  background: color-mix(in srgb, var(--panel) 62%, transparent);
  box-shadow: 0 10px 34px rgba(0, 0, 0, .18);
}

.logo-btn {
  min-height: 48px;
  border-radius: 9px;
}

.logo-icon {
  border-radius: 10px;
}

.logo-title {
  letter-spacing: .01em;
}

.main-nav {
  padding: 4px;
  border: 1px solid color-mix(in srgb, var(--line) 42%, transparent);
  border-radius: 10px;
  background: color-mix(in srgb, var(--panel) 42%, transparent);
  width: fit-content;
}

.nav-btn,
.learn-nav-btn {
  min-height: 40px;
  border-radius: 8px;
}

.nav-btn.active {
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--accent) 96%, white 4%), color-mix(in srgb, var(--accent) 78%, var(--accent-2)));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 44%, transparent), 0 10px 28px color-mix(in srgb, var(--accent) 18%, transparent);
}

.streak-badge,
.icon-btn {
  backdrop-filter: blur(12px);
}

.practice-controls,
.practice-area,
.keyboard-wrap,
.mini-keyboard,
.site-footer {
  border-color: color-mix(in srgb, var(--line) 48%, transparent);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 28%, transparent), transparent 55%),
    color-mix(in srgb, var(--panel) 92%, transparent);
}

.practice-controls {
  padding: 16px;
}

.control-label {
  color: color-mix(in srgb, var(--muted) 92%, white);
  font-size: .76rem;
  font-weight: 800;
  letter-spacing: .03em;
}

.btn-toggle-group {
  border-radius: 10px;
  background: color-mix(in srgb, var(--bg) 54%, transparent);
}

.btn-toggle-group .toggle-btn {
  border-radius: 7px;
  min-height: 38px;
  font-size: .86rem;
}

.stats-bar {
  gap: 12px;
}

.stat-block {
  min-height: 84px;
  border-color: color-mix(in srgb, var(--line) 48%, transparent);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 6%, transparent), transparent 52%),
    color-mix(in srgb, var(--panel) 94%, transparent);
}

.stat-block:hover {
  border-color: color-mix(in srgb, var(--accent) 38%, var(--line));
}

.stat-val {
  font-family: var(--font-mono);
  font-size: clamp(1.35rem, 3vw, 1.85rem);
}

.typing-progress-wrap {
  height: 30px;
  margin: 18px 0;
}

.typing-progress-fill {
  background:
    linear-gradient(90deg, var(--accent-2), color-mix(in srgb, var(--accent) 94%, white 4%));
}

.practice-area {
  position: relative;
}

.practice-area:focus-within {
  border-color: color-mix(in srgb, var(--accent) 58%, var(--line));
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 22%, transparent), 0 18px 44px rgba(0, 0, 0, .26), 0 0 34px color-mix(in srgb, var(--accent) 10%, transparent);
}

.practice-word-display {
  min-height: 146px;
  border-radius: 9px;
  background:
    radial-gradient(circle at 0 0, color-mix(in srgb, var(--accent) 7%, transparent), transparent 24rem),
    color-mix(in srgb, var(--bg) 58%, var(--bg-soft));
  font-size: clamp(1.65rem, 4.4vw, 2.7rem);
  line-height: 1.8;
  letter-spacing: .018em;
}

.char.current {
  background: color-mix(in srgb, var(--accent) 15%, transparent);
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 18%, transparent);
}

.practice-input {
  font-family: var(--font-mono);
}

.restart-btn,
.btn-secondary {
  min-height: 46px;
}

.practice-actions {
  margin: 18px 0 20px;
}

.practice-actions .btn-secondary {
  background: linear-gradient(180deg, color-mix(in srgb, var(--accent) 10%, var(--panel-strong)), var(--panel));
}

.mini-keyboard-wrap {
  margin-top: 8px;
}

.mini-keyboard {
  padding: 18px;
}

.mini-keyboard .kb-row {
  gap: 8px;
}

.mini-keyboard .key {
  border-radius: 8px;
}

.mini-keyboard .key.special .mara,
.mini-keyboard .key.digraph .mara,
.keyboard-wrap .key.special .mara,
.keyboard-wrap .key.digraph .mara {
  color: color-mix(in srgb, var(--accent) 88%, white);
}

.key.space {
  width: 440px;
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 72%, transparent), color-mix(in srgb, var(--panel) 96%, transparent));
}

.site-footer {
  border-radius: 10px;
}

.footer-block {
  border-radius: 8px;
}

/* Premium education-platform refinement */
:root {
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --ease: cubic-bezier(.2, .8, .2, 1);
}

.welcome-screen {
  background:
    radial-gradient(circle at 20% 18%, color-mix(in srgb, var(--accent) 24%, transparent), transparent 28rem),
    radial-gradient(circle at 80% 20%, color-mix(in srgb, var(--accent-2) 18%, transparent), transparent 30rem),
    linear-gradient(145deg, #090b0d, var(--bg) 48%, #12191b);
}

.welcome-screen::before,
.welcome-screen::after {
  content: "";
  position: fixed;
  inset: -20%;
  pointer-events: none;
  background-image:
    radial-gradient(circle, color-mix(in srgb, var(--accent) 60%, transparent) 0 1px, transparent 2px),
    radial-gradient(circle, color-mix(in srgb, var(--accent-2) 55%, transparent) 0 1px, transparent 2px);
  background-size: 92px 92px, 138px 138px;
  opacity: .28;
  animation: welcomeDrift 24s linear infinite;
}

.welcome-screen::after {
  animation-duration: 36s;
  animation-direction: reverse;
  opacity: .18;
}

@keyframes welcomeDrift {
  to { transform: translate3d(80px, 60px, 0); }
}

.welcome-content {
  animation: welcomeIn .8s var(--ease) both;
}

@keyframes welcomeIn {
  from { opacity: 0; transform: translateY(18px) scale(.985); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.welcome-emblem {
  filter: drop-shadow(0 0 32px color-mix(in srgb, var(--accent) 28%, transparent));
}

.btn-welcome {
  min-height: 56px;
  border-radius: 999px;
  box-shadow: 0 16px 36px color-mix(in srgb, var(--accent) 22%, transparent);
}

.header {  
  top: 10px;
  background: color-mix(in srgb, var(--panel) 68%, transparent);
  border-color: color-mix(in srgb, var(--line) 40%, transparent);
  backdrop-filter: blur(22px) saturate(1.2);
}

.main-nav,
.learn-nav {
  backdrop-filter: blur(18px);
}

.nav-btn:active,
.learn-nav-btn:active,
.toggle-btn:active,
.key:active,
.btn-secondary:active,
.restart-btn:active {
  transform: translateY(0) scale(.98);
}

.section-header,
.practice-intro-card,
.practice-controls,
.stats-bar,
.typing-progress-wrap,
.practice-area,
.mini-keyboard-wrap,
.keyboard-wrap,
.key-info-panel,
.digraph-note,
.learn-section,
.achievements-wrap,
.leaderboard-wrap,
.danger-zone,
.site-footer {
  animation: panelIn .42s var(--ease) both;
}

@keyframes panelIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.practice-controls {
  display: grid;
  grid-template-columns: repeat(2, minmax(220px, 1fr));
  gap: var(--space-4);
}

.practice-controls .control-options {
  grid-column: 1 / -1;
  padding-top: var(--space-2);
  border-top: 1px solid color-mix(in srgb, var(--line) 36%, transparent);
}

.checkbox-wrap {
  min-height: 34px;
  padding: 6px 9px;
  border-radius: 999px;
  color: var(--muted);
  transition: background .22s var(--ease), color .22s var(--ease);
}

.checkbox-wrap:hover {
  color: var(--text);
  background: color-mix(in srgb, var(--panel-strong) 48%, transparent);
}

.typing-progress-wrap::after {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: inherit;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.16), transparent);
  transform: translateX(-110%);
  animation: progressSheen 2.8s var(--ease) infinite;
  pointer-events: none;
}

@keyframes progressSheen {
  60%, 100% { transform: translateX(110%); }
}

.practice-hint-bar {
  font-size: .86rem;
}

.practice-input-wrap {
  align-items: center;
}

.btn-secondary,
.restart-btn {
  border-radius: 9px;
}

.keyboard-wrap {
  perspective: 1200px;
}

.key:hover {
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 92%, white 4%), color-mix(in srgb, var(--panel) 96%, black 2%));
}

.key.special,
.key.digraph {
  position: relative;
  overflow: hidden;
}

.key.special::before,
.key.digraph::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0, color-mix(in srgb, var(--accent) 22%, transparent), transparent 70%);
  pointer-events: none;
}

.key.space .mara {
  font-size: 1rem;
  letter-spacing: .04em;
}

.learn-section {
  padding: var(--space-4);
  border: 1px solid color-mix(in srgb, var(--line) 38%, transparent);
  border-radius: 10px;
  background: color-mix(in srgb, var(--panel) 38%, transparent);
}

.alphabet-card,
.pron-card,
.vocab-card,
.achievement-card,
.pov-card,
.special-char-card {
  border-color: color-mix(in srgb, var(--line) 48%, transparent);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--panel-strong) 24%, transparent), transparent),
    var(--panel);
  box-shadow: 0 10px 26px rgba(0,0,0,.14);
  transition: transform .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease);
}

.alphabet-card:hover,
.pron-card:hover,
.vocab-card:hover,
.achievement-card:hover,
.pov-card:hover,
.special-char-card:hover {
  transform: translateY(-2px);
  border-color: color-mix(in srgb, var(--accent) 42%, var(--line));
  box-shadow: 0 16px 34px rgba(0,0,0,.2);
}

.pov-card {
  min-height: 140px;
}

.achievement-card:not(.locked) {
  border-color: color-mix(in srgb, var(--accent) 45%, var(--line));
}

.achievement-card.locked {
  filter: grayscale(.25);
}

.lb-row {
  border: 1px solid color-mix(in srgb, var(--line) 34%, transparent);
}

.focus-mode .header,
.focus-mode .main-nav,
.focus-mode .site-footer,
.focus-mode .mini-keyboard-wrap,
.focus-mode .motivational {
  opacity: .28;
  transition: opacity .28s var(--ease), filter .28s var(--ease);
}

.focus-mode .header:hover,
.focus-mode .main-nav:hover,
.focus-mode .site-footer:hover,
.focus-mode .mini-keyboard-wrap:hover {
  opacity: 1;
}

.focus-mode .practice-area {
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 24%, transparent), 0 24px 70px rgba(0,0,0,.38), 0 0 46px color-mix(in srgb, var(--accent) 12%, transparent);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: .001ms !important;
  }
}

@media (max-width: 920px) {
  .stats-bar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .practice-controls {
    padding: 14px;
  }

  .btn-toggle-group {
    width: 100%;
  }

  .btn-toggle-group .toggle-btn {
    flex: 1 1 auto;
  }
}

@media (max-width: 760px) {
  .app {
    width: min(100% - 18px, 1180px);
  }

  .header {
    align-items: flex-start;
    flex-direction: column;
  }

  .header-right,
  .main-nav,
  .learn-nav {
    width: 100%;
  }

  .nav-btn,
  .learn-nav-btn {
    flex: 1 1 140px;
  }

  .key-differences-bar,
  .footer-links,
  .completion-stats-row {
    grid-template-columns: 1fr;
  }

  .stats-bar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .footer-brand {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-icon {
    margin: 0 auto;
  }

  .stat-divider {
    display: none;
  }

  .practice-input-wrap,
  .lb-add-form,
  .completion-actions {
    flex-direction: column;
  }

  .input-btn-group {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .practice-controls {
    grid-template-columns: 1fr;
  }

  .practice-controls .control-options {
    grid-column: auto;
  }

  .btn-toggle-group {
    overflow-x: auto;
  }

  .practice-word-display {
    min-height: 60px;
    padding: 12px 14px;
    font-size: clamp(.85rem, 4vw, 1.1rem);
  }

  .dt-row,
  .lb-row {
    grid-template-columns: 1fr;
  }

  .streak-label {
    display: none;
  }
}