/* ═══════════════════════════════════════════════
   TYPEX v2 — NEO-NOIR TERMINAL THEME
   ═══════════════════════════════════════════════ */

@import url("https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@300;400;500;700&family=Syne:wght@400;700;800&family=VT323&display=swap");

:root {
  --bg: #080b0f;
  --bg2: #0d1117;
  --bg3: #111820;
  --surface: #141c26;
  --surface2: #1a2535;
  --border: #1e2d40;
  --border2: #2a3f58;

  --acid: #a8ff3e;
  --coral: #ff5d5d;
  --sky: #38bdf8;
  --gold: #fbbf24;
  --purple: #a78bfa;

  --text: #8ba3bc;
  --text-mid: #4a6580;
  --text-dim: #2a3d52;
  --text-hi: #dce8f5;

  --correct: #a8ff3e;
  --wrong: #ff5d5d;
  --pending: #2a3d52;
  --cursor: #fbbf24;

  --mono: "JetBrains Mono", monospace;
  --display: "Syne", sans-serif;
  --vt: "VT323", monospace;

  --r: 6px;
  --r2: 10px;
  --ease: 0.15s cubic-bezier(0.4, 0, 0.2, 1);

  --glow-acid:
    0 0 12px rgba(168, 255, 62, 0.35), 0 0 30px rgba(168, 255, 62, 0.12);
  --glow-coral:
    0 0 12px rgba(255, 93, 93, 0.35), 0 0 30px rgba(255, 93, 93, 0.12);
  --glow-sky: 0 0 12px rgba(56, 189, 248, 0.35);
}

body.light {
  --bg: #f2f4f7;
  --bg2: #e8ecf2;
  --bg3: #dde3ed;
  --surface: #d8dfe9;
  --surface2: #ccd4e0;
  --border: #b8c4d4;
  --border2: #9aabbe;
  --text: #3a4f66;
  --text-mid: #6a8099;
  --text-dim: #9aafbf;
  --text-hi: #1a2d40;
  --pending: #9aafbf;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  font-size: 16px;
  scroll-behavior: smooth;
}
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* ── Animated grid background ── */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(rgba(168, 255, 62, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(168, 255, 62, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  animation: gridShift 20s linear infinite;
}
@keyframes gridShift {
  0% {
    background-position: 0 0;
  }
  100% {
    background-position: 48px 48px;
  }
}
.bg-vignette {
  position: fixed;
  inset: 0;
  z-index: 1;
  background: radial-gradient(
    ellipse 80% 70% at 50% 50%,
    transparent 40%,
    var(--bg) 100%
  );
  pointer-events: none;
}
#bgCanvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
}
.scanline {
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 3px,
    rgba(0, 0, 0, 0.06) 3px,
    rgba(0, 0, 0, 0.06) 4px
  );
  animation: scanlineScroll 8s linear infinite;
}
@keyframes scanlineScroll {
  0% {
    background-position: 0 0;
  }
  100% {
    background-position: 0 100px;
  }
}

/* Particle burst */
#particleBurst {
  position: fixed;
  inset: 0;
  z-index: 9998;
  pointer-events: none;
  overflow: hidden;
}
.burst-particle {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  pointer-events: none;
  animation: burstAnim 0.6s ease-out forwards;
}
@keyframes burstAnim {
  0% {
    transform: translate(0, 0) scale(1);
    opacity: 1;
  }
  100% {
    transform: translate(var(--dx), var(--dy)) scale(0);
    opacity: 0;
  }
}

/* ── App Layout ── */
.app {
  position: relative;
  z-index: 10;
  max-width: 980px;
  margin: 0 auto;
  padding: 0 20px 100px;
  min-height: 100vh;
}

/* ═══════════════════════════════════════════════
   HEADER
   ═══════════════════════════════════════════════ */
.header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  padding: 22px 0 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
}
.logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
  text-decoration: none;
}
.logo-mark {
  font-family: var(--display);
  font-size: 1.1rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--acid), var(--sky));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
  padding: 2px 6px;
  border: 1px solid rgba(168, 255, 62, 0.3);
  border-radius: 4px;
  -webkit-text-fill-color: unset;
  color: var(--acid);
}
.logo-name {
  font-family: var(--display);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-hi);
  letter-spacing: 3px;
}
.logo-version {
  font-size: 0.6rem;
  color: var(--text-dim);
  letter-spacing: 1px;
  font-family: var(--mono);
}

.nav {
  display: flex;
  justify-content: center;
  gap: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 4px;
  border-radius: var(--r2);
}
.nav-btn {
  font-family: var(--display);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 8px 18px;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-mid);
  cursor: pointer;
  border-radius: var(--r);
  transition: all var(--ease);
  display: flex;
  align-items: center;
  gap: 6px;
}
.nav-icon {
  font-size: 0.8rem;
}
.nav-btn:hover {
  color: var(--text-hi);
  background: var(--surface2);
}
.nav-btn.active {
  background: var(--acid);
  color: #000;
  border-color: var(--acid);
  box-shadow: var(--glow-acid);
  font-weight: 800;
}

.header-actions {
  display: flex;
  gap: 8px;
}
.icon-btn {
  width: 36px;
  height: 36px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-mid);
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--ease);
}
.icon-btn:hover {
  border-color: var(--acid);
  color: var(--acid);
  box-shadow: var(--glow-acid);
}

/* ── Tab Content ── */
.tab-content {
  display: none;
  animation: slideIn 0.25s ease;
}
.tab-content.active {
  display: block;
}
@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ═══════════════════════════════════════════════
   SETTINGS ROW
   ═══════════════════════════════════════════════ */
.settings-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  padding: 16px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  margin-bottom: 16px;
}
.setting-group {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.setting-label {
  font-family: var(--display);
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text-dim);
  white-space: nowrap;
}
.setting-divider {
  width: 1px;
  height: 28px;
  background: var(--border);
  flex-shrink: 0;
}
.chip-group {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
}
.chip {
  font-family: var(--mono);
  font-size: 0.7rem;
  font-weight: 500;
  padding: 5px 11px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-mid);
  cursor: pointer;
  border-radius: 20px;
  transition: all var(--ease);
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.chip:hover {
  border-color: var(--border2);
  color: var(--text-hi);
}
.chip.active {
  border-color: var(--acid);
  color: var(--acid);
  background: rgba(168, 255, 62, 0.06);
  box-shadow: 0 0 8px rgba(168, 255, 62, 0.2);
}
.chip-special.active {
  border-color: var(--purple);
  color: var(--purple);
  background: rgba(167, 139, 250, 0.07);
  box-shadow: 0 0 8px rgba(167, 139, 250, 0.25);
}
.chip-special {
  border-style: dashed;
}

/* ═══════════════════════════════════════════════
   CUSTOM TEXT PANEL
   ═══════════════════════════════════════════════ */
.custom-panel {
  background: var(--surface);
  border: 1px solid var(--purple);
  border-radius: var(--r2);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: 0 0 20px rgba(167, 139, 250, 0.08);
  animation: slideIn 0.25s ease;
}
.custom-panel.hidden {
  display: none;
}

.custom-panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}
.custom-panel-title {
  font-family: var(--display);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--purple);
}
.custom-char-count {
  font-family: var(--mono);
  font-size: 0.7rem;
  color: var(--text-mid);
  background: var(--surface2);
  padding: 2px 10px;
  border-radius: 20px;
  border: 1px solid var(--border);
}

.custom-textarea {
  width: 100%;
  min-height: 140px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  color: var(--text-hi);
  font-family: var(--mono);
  font-size: 0.85rem;
  line-height: 1.6;
  padding: 14px 16px;
  resize: vertical;
  transition: border-color var(--ease);
  outline: none;
}
.custom-textarea:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 2px rgba(167, 139, 250, 0.15);
}
.custom-textarea::placeholder {
  color: var(--text-dim);
  font-size: 0.78rem;
}

.custom-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-top: 14px;
  flex-wrap: wrap;
}
.custom-presets {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}
.preset-label {
  font-size: 0.6rem;
  color: var(--text-dim);
  letter-spacing: 1px;
  white-space: nowrap;
}
.preset-btn {
  font-family: var(--mono);
  font-size: 0.68rem;
  padding: 4px 10px;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--text-mid);
  border-radius: 20px;
  cursor: pointer;
  transition: all var(--ease);
}
.preset-btn:hover {
  border-color: var(--purple);
  color: var(--purple);
}
.custom-actions {
  display: flex;
  gap: 8px;
  flex-shrink: 0;
}

/* ═══════════════════════════════════════════════
   HUD (Live Stats)
   ═══════════════════════════════════════════════ */
.hud {
  display: flex;
  gap: 10px;
  margin-bottom: 16px;
}
.hud-item {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 14px 10px 10px;
  text-align: center;
  transition: border-color var(--ease);
}
.hud-val {
  font-family: var(--vt);
  font-size: 2rem;
  line-height: 1;
  color: var(--text-hi);
  transition: all 0.15s;
}
.hud-label {
  font-family: var(--display);
  font-size: 0.48rem;
  letter-spacing: 2px;
  color: var(--text-dim);
  margin-top: 5px;
  font-weight: 700;
}
.hud-timer {
  border-color: var(--acid);
  background: rgba(168, 255, 62, 0.03);
}
.timer-ring-wrap {
  position: relative;
  width: 44px;
  height: 44px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
}
.timer-ring {
  position: absolute;
  inset: 0;
  transform: rotate(-90deg);
}
.ring-bg {
  fill: none;
  stroke: var(--border);
  stroke-width: 3;
}
.ring-fill {
  fill: none;
  stroke: var(--acid);
  stroke-width: 3;
  stroke-linecap: round;
  stroke-dasharray: 113.1;
  stroke-dashoffset: 0;
  transition:
    stroke-dashoffset 1s linear,
    stroke 0.5s;
  filter: drop-shadow(0 0 4px var(--acid));
}
.ring-fill.ring-warn {
  stroke: var(--coral);
  filter: drop-shadow(0 0 4px var(--coral));
}
.timer-num {
  font-family: var(--vt);
  font-size: 1.3rem;
  color: var(--acid);
  position: relative;
  z-index: 1;
  line-height: 1;
}
.timer-num.warn {
  color: var(--coral);
}

/* ═══════════════════════════════════════════════
   ARENA
   ═══════════════════════════════════════════════ */
.arena {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 24px 28px 18px;
  margin-bottom: 16px;
  cursor: text;
  transition:
    border-color var(--ease),
    box-shadow var(--ease);
  position: relative;
  overflow: hidden;
}
.arena::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--acid), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.arena.active-typing {
  border-color: rgba(168, 255, 62, 0.3);
  box-shadow:
    0 0 0 1px rgba(168, 255, 62, 0.1),
    inset 0 0 50px rgba(168, 255, 62, 0.02);
}
.arena.active-typing::after {
  opacity: 1;
}
.arena.shake {
  animation: arenaShake 0.3s ease;
}
@keyframes arenaShake {
  0%,
  100% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-4px);
  }
  40% {
    transform: translateX(4px);
  }
  60% {
    transform: translateX(-3px);
  }
  80% {
    transform: translateX(3px);
  }
}

.arena-topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.arena-mode-tag {
  font-family: var(--display);
  font-size: 0.55rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--acid);
  background: rgba(168, 255, 62, 0.07);
  padding: 3px 8px;
  border-radius: 3px;
  border: 1px solid rgba(168, 255, 62, 0.2);
}
.arena-hint {
  font-size: 0.68rem;
  color: var(--text-dim);
  animation: pulseOpacity 2s ease-in-out infinite;
}
@keyframes pulseOpacity {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
}

.words-display {
  font-size: 1.3rem;
  line-height: 2.5;
  color: var(--pending);
  letter-spacing: 0.3px;
  margin-bottom: 16px;
  min-height: 5.5rem;
  max-height: 10rem;
  overflow: hidden;
  word-break: break-word;
  user-select: none;
  position: relative;
}
.words-display .char {
  display: inline;
  transition:
    color 0.05s,
    text-shadow 0.05s;
}
.words-display .char.correct {
  color: var(--correct);
}
.words-display .char.wrong {
  color: var(--wrong);
  text-decoration: underline;
  text-decoration-color: rgba(255, 93, 93, 0.4);
}
.words-display .char.current {
  color: var(--text-hi);
  position: relative;
}
.words-display .char.current::before {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 2px;
  height: calc(100% + 2px);
  background: var(--cursor);
  box-shadow: 0 0 6px var(--cursor);
  animation: cursorBlink 0.65s step-end infinite;
}
@keyframes cursorBlink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

.input-echo-row {
  display: flex;
  align-items: center;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}
.prompt-char {
  color: var(--acid);
  font-size: 1.1rem;
  flex-shrink: 0;
  text-shadow: var(--glow-acid);
}
.current-word-echo {
  font-family: var(--mono);
  font-size: 0.9rem;
  color: var(--text-mid);
  letter-spacing: 1px;
  min-height: 1.2em;
  flex: 1;
}

.progress-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 12px;
}
.progress-track {
  flex: 1;
  height: 3px;
  background: var(--surface2);
  border-radius: 2px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--purple), var(--acid));
  border-radius: 2px;
  transition: width 0.4s linear;
  box-shadow: 0 0 6px var(--acid);
}
.progress-pct {
  font-family: var(--mono);
  font-size: 0.62rem;
  color: var(--text-dim);
  min-width: 36px;
  text-align: right;
}

/* ═══════════════════════════════════════════════
   ACTIONS
   ═══════════════════════════════════════════════ */
.action-row {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-bottom: 24px;
}

.btn-primary {
  font-family: var(--display);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 3px;
  padding: 12px 32px;
  background: var(--acid);
  color: #000;
  border: 2px solid var(--acid);
  border-radius: var(--r);
  cursor: pointer;
  transition: all var(--ease);
  box-shadow: var(--glow-acid);
}
.btn-primary:hover {
  background: transparent;
  color: var(--acid);
  box-shadow: 0 0 25px rgba(168, 255, 62, 0.4);
}
.btn-primary:active {
  transform: scale(0.97);
}
.btn-primary.small {
  padding: 8px 18px;
  font-size: 0.6rem;
  letter-spacing: 2px;
}

.btn-ghost {
  font-family: var(--display);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 11px 22px;
  background: transparent;
  color: var(--text-mid);
  border: 1px solid var(--border);
  border-radius: var(--r);
  cursor: pointer;
  transition: all var(--ease);
  display: flex;
  align-items: center;
  gap: 6px;
}
.btn-ghost:hover {
  border-color: var(--border2);
  color: var(--text-hi);
}
.btn-ghost:active {
  transform: scale(0.97);
}
.btn-ghost.small {
  padding: 7px 14px;
  font-size: 0.58rem;
}
.btn-ghost.danger:hover {
  border-color: var(--coral);
  color: var(--coral);
}
kbd {
  font-family: var(--mono);
  font-size: 0.58rem;
  padding: 1px 5px;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 3px;
  color: var(--text-dim);
}

/* ═══════════════════════════════════════════════
   RESULTS OVERLAY
   ═══════════════════════════════════════════════ */
.results-overlay {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(4, 7, 10, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(10px);
  animation: fadeIn 0.3s ease;
  padding: 20px;
}
.results-overlay.hidden {
  display: none;
}
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.results-panel {
  background: var(--bg2);
  border: 1px solid rgba(168, 255, 62, 0.3);
  box-shadow:
    var(--glow-acid),
    0 40px 80px rgba(0, 0, 0, 0.7);
  border-radius: 16px;
  padding: 36px 40px;
  width: 100%;
  max-width: 600px;
  animation: panelUp 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes panelUp {
  from {
    transform: translateY(30px) scale(0.96);
    opacity: 0;
  }
  to {
    transform: none;
    opacity: 1;
  }
}

.results-top {
  display: flex;
  align-items: center;
  gap: 28px;
  margin-bottom: 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}
.results-grade-wrap {
  text-align: center;
}
.results-grade {
  font-family: var(--vt);
  font-size: 5.5rem;
  line-height: 1;
  color: var(--acid);
  text-shadow: var(--glow-acid);
  animation: gradePop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.2s both;
}
@keyframes gradePop {
  from {
    transform: scale(0);
    opacity: 0;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}
.results-grade-sub {
  font-family: var(--display);
  font-size: 0.5rem;
  letter-spacing: 3px;
  color: var(--text-dim);
  margin-top: 2px;
}
.results-headline {
  flex: 1;
}
.results-wpm-big {
  font-family: var(--vt);
  font-size: 4.5rem;
  line-height: 1;
  color: var(--text-hi);
  animation: numCount 0.5s ease 0.1s both;
}
@keyframes numCount {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}
.results-wpm-unit {
  font-family: var(--display);
  font-size: 0.65rem;
  letter-spacing: 2px;
  color: var(--text-mid);
  margin-top: 4px;
  font-weight: 700;
}

.results-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 24px;
}
.rs-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 14px 10px;
  text-align: center;
}
.rs-item.rs-bad {
  border-color: rgba(255, 93, 93, 0.25);
}
.rs-num {
  font-family: var(--vt);
  font-size: 2rem;
  color: var(--text-hi);
  line-height: 1;
}
.rs-bad .rs-num {
  color: var(--coral);
}
.rs-label {
  font-family: var(--display);
  font-size: 0.48rem;
  letter-spacing: 2px;
  color: var(--text-dim);
  margin-top: 5px;
  font-weight: 700;
}

.wpm-chart-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 14px;
  margin-bottom: 20px;
}
.chart-label-sm {
  font-family: var(--display);
  font-size: 0.5rem;
  letter-spacing: 2px;
  color: var(--text-dim);
  margin-bottom: 8px;
  font-weight: 700;
}
.results-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
}

/* ═══════════════════════════════════════════════
   TRAIN TAB
   ═══════════════════════════════════════════════ */
.section-header {
  padding: 28px 0 24px;
}
.section-title {
  font-family: var(--display);
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: 3px;
  color: var(--text-hi);
  margin-bottom: 6px;
}
.section-sub {
  font-size: 0.78rem;
  color: var(--text-mid);
}

.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 12px;
  margin-bottom: 28px;
}
.module-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 22px 20px;
  display: grid;
  grid-template-columns: 44px 1fr auto;
  grid-template-rows: auto auto;
  gap: 6px 12px;
  align-items: center;
  cursor: pointer;
  transition: all var(--ease);
  position: relative;
  overflow: hidden;
}
.module-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--acid);
  transform: scaleY(0);
  transition: transform var(--ease);
  transform-origin: bottom;
}
.module-card:hover {
  border-color: var(--border2);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}
.module-card:hover::before {
  transform: scaleY(1);
}

.module-glyph {
  font-size: 1.6rem;
  grid-row: 1/3;
  display: flex;
  align-items: center;
}
.module-info {
  grid-column: 2;
}
.module-title {
  font-family: var(--display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text-hi);
}
.module-desc {
  font-size: 0.68rem;
  color: var(--text-mid);
  margin-top: 2px;
}
.module-badge {
  font-family: var(--display);
  font-size: 0.46rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  padding: 3px 7px;
  border-radius: 3px;
  border: 1px solid currentColor;
  grid-column: 3;
  grid-row: 1;
  align-self: start;
}
.module-badge.beginner {
  color: var(--sky);
  border-color: rgba(56, 189, 248, 0.4);
  background: rgba(56, 189, 248, 0.07);
}
.module-badge.intermediate {
  color: var(--gold);
  border-color: rgba(251, 191, 36, 0.4);
  background: rgba(251, 191, 36, 0.07);
}
.module-badge.advanced {
  color: var(--coral);
  border-color: rgba(255, 93, 93, 0.4);
  background: rgba(255, 93, 93, 0.07);
}
.module-badge.hardcore {
  color: var(--purple);
  border-color: rgba(167, 139, 250, 0.4);
  background: rgba(167, 139, 250, 0.07);
}
.module-btn {
  font-family: var(--display);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  background: transparent;
  border: none;
  color: var(--acid);
  cursor: pointer;
  grid-column: 3;
  grid-row: 2;
  align-self: end;
  padding: 0;
  transition: letter-spacing var(--ease);
}
.module-card:hover .module-btn {
  letter-spacing: 2.5px;
}

/* Train Arena */
.train-arena {
  background: var(--surface);
  border: 1px solid rgba(168, 255, 62, 0.3);
  border-radius: var(--r2);
  padding: 28px;
  box-shadow:
    var(--glow-acid),
    0 20px 50px rgba(0, 0, 0, 0.3);
}
.train-arena.hidden {
  display: none;
}
.train-top {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}
.train-title {
  font-family: var(--display);
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 3px;
  color: var(--acid);
}
.train-meta {
  font-size: 0.72rem;
  color: var(--text-mid);
  flex: 1;
}
.train-target {
  font-family: var(--vt);
  font-size: 3.5rem;
  text-align: center;
  color: var(--text-hi);
  letter-spacing: 4px;
  padding: 24px;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  margin-bottom: 18px;
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
}
.train-target.flash-ok {
  border-color: var(--acid);
  box-shadow: var(--glow-acid);
  color: var(--acid);
}
.train-target.flash-fail {
  border-color: var(--coral);
  box-shadow: var(--glow-coral);
  color: var(--coral);
  animation: arenaShake 0.3s ease;
}
.input-row {
  display: flex;
  align-items: center;
  gap: 10px;
}
.train-input {
  flex: 1;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  color: var(--text-hi);
  font-family: var(--mono);
  font-size: 1rem;
  padding: 12px 14px;
  outline: none;
  transition: border-color var(--ease);
}
.train-input:focus {
  border-color: var(--acid);
  box-shadow: 0 0 0 2px rgba(168, 255, 62, 0.1);
}
.train-input::placeholder {
  color: var(--text-dim);
}
.train-feedback {
  text-align: center;
  font-size: 0.85rem;
  min-height: 24px;
  color: var(--text-mid);
  margin-top: 12px;
  letter-spacing: 0.5px;
  transition: all 0.15s;
}
.train-feedback.ok {
  color: var(--acid);
}
.train-feedback.fail {
  color: var(--coral);
}

/* ═══════════════════════════════════════════════
   STATS TAB
   ═══════════════════════════════════════════════ */
.stats-toprow {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0 20px;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 20px;
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 18px 14px;
  text-align: center;
}
.stat-card.accent {
  border-color: rgba(168, 255, 62, 0.3);
  background: rgba(168, 255, 62, 0.03);
}
.sc-val {
  font-family: var(--vt);
  font-size: 2.2rem;
  color: var(--text-hi);
  line-height: 1;
}
.stat-card.accent .sc-val {
  color: var(--acid);
  text-shadow: 0 0 10px rgba(168, 255, 62, 0.4);
}
.sc-label {
  font-family: var(--display);
  font-size: 0.48rem;
  letter-spacing: 2px;
  color: var(--text-dim);
  margin-top: 5px;
  font-weight: 700;
}

.chart-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  padding: 18px;
  margin-bottom: 16px;
}
.chart-card-label {
  font-family: var(--display);
  font-size: 0.52rem;
  letter-spacing: 2px;
  color: var(--text-dim);
  margin-bottom: 12px;
  font-weight: 700;
}

.table-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  overflow: hidden;
  margin-bottom: 24px;
}
.table-card-label {
  font-family: var(--display);
  font-size: 0.52px;
  letter-spacing: 2px;
  color: var(--text-dim);
  padding: 14px 18px 10px;
  border-bottom: 1px solid var(--border);
  font-size: 0.52rem;
  font-weight: 700;
}
.table-scroll {
  overflow-x: auto;
}
.history-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.75rem;
  min-width: 560px;
}
.history-table th {
  font-family: var(--display);
  font-size: 0.48rem;
  letter-spacing: 2px;
  color: var(--text-dim);
  padding: 9px 14px;
  text-align: left;
  background: var(--bg2);
  border-bottom: 1px solid var(--border);
  font-weight: 700;
}
.history-table td {
  padding: 9px 14px;
  border-bottom: 1px solid var(--border);
  color: var(--text);
}
.history-table tr:last-child td {
  border-bottom: none;
}
.history-table tr:hover td {
  background: rgba(168, 255, 62, 0.02);
}
.history-table .empty-row td {
  text-align: center;
  color: var(--text-dim);
  padding: 28px;
}
.wpm-cell {
  color: var(--acid) !important;
  font-weight: 700;
}

/* ═══════════════════════════════════════════════
   TOAST
   ═══════════════════════════════════════════════ */
.toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: var(--surface2);
  border: 1px solid var(--border2);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.78rem;
  padding: 10px 22px;
  border-radius: 999px;
  z-index: 9999;
  opacity: 0;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  pointer-events: none;
  white-space: nowrap;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}
.toast.success {
  border-color: var(--acid);
  color: var(--acid);
}
.toast.error {
  border-color: var(--coral);
  color: var(--coral);
}

/* ═══════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════ */
.footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 24px;
  background: linear-gradient(
    to top,
    rgba(8, 11, 15, 0.98),
    rgba(8, 11, 15, 0.7)
  );
  border-top: 1px solid var(--border);
  backdrop-filter: blur(10px);
  font-family: var(--display);
  font-size: 0.5rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--text-dim);
}
.footer a {
  color: var(--acid);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all var(--ease);
  text-shadow: 0 0 8px rgba(168, 255, 62, 0.3);
}
.footer a:hover {
  color: var(--text-hi);
  letter-spacing: 2.5px;
}

/* style.css */
.loader-overlay {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    opacity 0.5s ease,
    visibility 0.5s;
}

.loader-overlay.fade-out {
  opacity: 0;
  visibility: hidden;
}

.loader-content {
  text-align: center;
  font-family: "JetBrains Mono", monospace;
}

.loader-logo {
  font-size: 3rem;
  font-weight: 800;
  color: var(--acid);
  margin-bottom: 20px;
  letter-spacing: 5px;
  animation: pulse 1.5s infinite ease-in-out;
}

.loader-bar-container {
  width: 200px;
  height: 4px;
  background: var(--surface);
  margin: 0 auto 15px;
  border-radius: 2px;
  overflow: hidden;
}

.loader-bar {
  width: 0%;
  height: 100%;
  background: var(--acid);
  animation: loadProgress 2s forwards cubic-bezier(0.1, 0.5, 0.5, 1);
}

.loader-text {
  font-size: 0.7rem;
  color: var(--text-mid);
  letter-spacing: 2px;
  text-transform: uppercase;
}

@keyframes loadProgress {
  0% {
    width: 0%;
  }
  100% {
    width: 100%;
  }
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.7;
    transform: scale(0.95);
  }
}

/* ═══════════════════════════════════════════════
   SCROLLBAR
   ═══════════════════════════════════════════════ */
::-webkit-scrollbar {
  width: 5px;
  height: 5px;
}
::-webkit-scrollbar-track {
  background: var(--bg);
}
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--border2);
}
::selection {
  background: rgba(168, 255, 62, 0.2);
  color: var(--acid);
}

/* ═══════════════════════════════════════════════
   RESPONSIVE — MOBILE FIRST
   ═══════════════════════════════════════════════ */
@media (max-width: 700px) {
  .app {
    padding: 0 14px 90px;
  }

  .header {
    grid-template-columns: auto auto;
    grid-template-rows: auto auto;
    gap: 12px;
  }
  .nav {
    grid-column: 1 / -1;
    justify-content: stretch;
  }
  .nav-btn {
    flex: 1;
    justify-content: center;
    padding: 10px 8px;
  }
  .header-actions {
    grid-row: 1;
    grid-column: 2;
  }

  .settings-row {
    padding: 12px 14px;
    gap: 10px 14px;
  }
  .setting-divider {
    display: none;
  }
  .chip {
    font-size: 0.65rem;
    padding: 5px 10px;
  }

  .hud {
    gap: 6px;
  }
  .hud-val {
    font-size: 1.6rem;
  }
  .timer-num {
    font-size: 1.1rem;
  }
  .hud-label {
    font-size: 0.42rem;
  }

  .arena {
    padding: 18px 16px 14px;
  }
  .words-display {
    font-size: 1.1rem;
    line-height: 2.2;
  }

  .results-panel {
    padding: 24px 20px;
  }
  .results-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .results-top {
    gap: 16px;
  }
  .results-grade {
    font-size: 4rem;
  }
  .results-wpm-big {
    font-size: 3.2rem;
  }

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

  .custom-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }

  .action-row {
    gap: 8px;
  }
  .btn-primary {
    padding: 12px 24px;
    font-size: 0.64rem;
  }
  .btn-ghost {
    padding: 11px 16px;
    font-size: 0.62rem;
  }
}

@media (max-width: 400px) {
  .results-stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .hud {
    flex-wrap: wrap;
  }
  .hud-item {
    min-width: calc(33% - 6px);
  }
}

/* ── Light theme overrides ── */
body.light .bg-grid {
  background-image:
    linear-gradient(rgba(0, 100, 60, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 100, 60, 0.06) 1px, transparent 1px);
}
body.light .scanline {
  opacity: 0.3;
}
body.light #bgCanvas {
  opacity: 0.2;
}