/* ═══════════════════════════════════════════════════════════════
   TypeForge — Design System
   Aesthetic: Terminal-Noir
   Fonts: Bebas Neue · IBM Plex Mono · Figtree
   Palette: Near-black bg · cream text · electric lime accent
═══════════════════════════════════════════════════════════════ */

/* ─── DESIGN TOKENS ─── */
:root {
  /* Colors */
  --bg:           #0e0e10;
  --bg-raised:    #141416;
  --bg-card:      #1a1a1e;
  --bg-hover:     #222226;

  --border:       rgba(255,255,255,0.06);
  --border-mid:   rgba(255,255,255,0.10);

  --text:         #d4cebd;       /* warm cream */
  --text-dim:     #5a5a6a;       /* muted labels */
  --text-dimmer:  #343440;       /* very muted */

  --accent:       #c8f135;       /* electric lime */
  --accent-dim:   rgba(200,241,53,0.10);
  --accent-glow:  rgba(200,241,53,0.25);

  --correct:      #c8f135;       /* lime green for correct chars */
  --incorrect:    #f13535;       /* red for wrong chars */
  --incorrect-bg: rgba(241,53,53,0.15);
  --pending:      #5a5a6a;       /* untyped chars */
  --cursor-color: #c8f135;

  /* Typography */
  --font-display: 'Bebas Neue', sans-serif;
  --font-mono:    'IBM Plex Mono', monospace;
  --font-ui:      'Figtree', sans-serif;

  /* Spacing */
  --radius:       10px;
  --radius-sm:    6px;
  --radius-lg:    16px;

  /* Motion */
  --ease:         cubic-bezier(0.4, 0, 0.2, 1);
  --t:            0.18s;
  --t-slow:       0.35s;
}

/* ═══ RESET ═══ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-ui);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  /* Custom cursor — crosshair suits the precision theme */
  cursor: crosshair;
}

button, input { font-family: inherit; }
button { cursor: pointer; border: none; background: none; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

/* Scrollbar */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-mid); border-radius: 99px; }

/* ═══ BACKGROUND EFFECTS ═══ */
.bg-texture {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  /* Fine grain noise using SVG data URI */
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
  background-size: 256px 256px;
  opacity: 0.6;
}

/* Subtle scanlines */
.bg-texture::after {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.03) 2px,
    rgba(0,0,0,0.03) 4px
  );
  pointer-events: none;
}

/* Ambient glow blobs */
.ambient {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.ambient-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  animation: blobDrift 20s ease-in-out infinite alternate;
}
.ambient-blob--1 {
  width: 500px; height: 500px;
  top: -200px; left: -100px;
  background: rgba(200,241,53,0.04);
  animation-delay: 0s;
}
.ambient-blob--2 {
  width: 400px; height: 400px;
  bottom: -150px; right: -100px;
  background: rgba(241,53,53,0.03);
  animation-delay: -10s;
}
@keyframes blobDrift {
  from { transform: translate(0, 0) scale(1); }
  to   { transform: translate(40px, 30px) scale(1.1); }
}

/* ═══ APP WRAPPER ═══ */
.app-wrapper {
  position: relative;
  z-index: 1;
  max-width: 860px;
  margin: 0 auto;
  padding: 0 24px 60px;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  gap: 0;
}

/* ═══ HEADER ═══ */
.site-header {
  padding: 36px 0 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  animation: fadeDown 0.5s var(--ease) both;
}
@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}

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

.brand-logo {
  font-size: 1.6rem;
  filter: grayscale(0.3);
  animation: logoPulse 3s ease-in-out infinite;
}
@keyframes logoPulse {
  0%, 100% { opacity: 0.8; }
  50%       { opacity: 1; }
}

.brand-name {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: var(--text);
  line-height: 1;
}
.brand-name em {
  font-style: normal;
  color: var(--accent);
}

.brand-tagline {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ═══ CONTROLS BAR ═══ */
.controls-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 28px 0 20px;
  animation: fadeDown 0.5s var(--ease) 0.08s both;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.control-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dimmer);
  letter-spacing: 0.1em;
  margin-right: 2px;
}

.control-sep {
  width: 1px;
  height: 22px;
  background: var(--border-mid);
  margin: 0 8px;
}

/* Mode buttons (30s, 60s, 120s) */
.mode-btns {
  display: flex;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.mode-btn {
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-dim);
  background: none;
  border: none;
  border-right: 1px solid var(--border);
  transition: all var(--t) var(--ease);
  position: relative;
}
.mode-btn:last-child { border-right: none; }
.mode-btn:hover { color: var(--text); background: var(--bg-hover); }
.mode-btn.active {
  color: var(--bg);
  background: var(--accent);
  font-weight: 600;
}
.mode-btn.active:hover { background: var(--accent); }

/* Icon buttons (refresh, restart) */
.icon-btn {
  width: 36px; height: 36px;
  display: grid; place-items: center;
  border-radius: var(--radius-sm);
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-dim);
  transition: all var(--t) var(--ease);
}
.icon-btn svg { width: 16px; height: 16px; }
.icon-btn:hover {
  color: var(--accent);
  border-color: var(--accent-dim);
  background: var(--accent-dim);
  transform: rotate(15deg);
}
.icon-btn:active { transform: rotate(180deg) scale(0.95); }

/* ═══ STATS ROW ═══ */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 14px;
  animation: fadeDown 0.5s var(--ease) 0.12s both;
}

.stat-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 10px 12px;
  transition: border-color var(--t) var(--ease);
}
.stat-card:hover { border-color: var(--border-mid); }
.stat-card--timer { border-color: var(--border-mid); }

.stat-value {
  font-family: var(--font-mono);
  font-size: 1.65rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1;
  transition: color var(--t) var(--ease);
  letter-spacing: -0.02em;
}

/* Timer turns accent color when running */
.stat-card--timer .stat-value { color: var(--accent); }
.stat-card--timer.urgent .stat-value { color: var(--incorrect); animation: timerUrgent 0.5s ease-in-out infinite; }
@keyframes timerUrgent {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.5; }
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-dimmer);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ═══ PROGRESS BAR ═══ */
.progress-wrap {
  margin-bottom: 16px;
}
.progress-track {
  height: 3px;
  background: var(--bg-card);
  border-radius: 99px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent), #a8e000);
  border-radius: 99px;
  transition: width 0.3s var(--ease);
  position: relative;
}
/* Shimmer on progress bar */
.progress-fill::after {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 40px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.5), transparent);
  animation: shimmer 1.5s ease-in-out infinite;
}
@keyframes shimmer {
  0%   { transform: translateX(-60px); }
  100% { transform: translateX(20px); }
}

/* ═══ TYPING SECTION ═══ */
.typing-section {
  position: relative;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 40px 32px;
  cursor: text;
  transition: border-color var(--t-slow) var(--ease);
  animation: fadeDown 0.5s var(--ease) 0.16s both;
  min-height: 180px;
  display: flex;
  flex-direction: column;
}
.typing-section:hover { border-color: var(--border-mid); }
.typing-section.focused { border-color: rgba(200,241,53,0.2); }

/* ── Text Display ── */
.text-display {
  font-family: var(--font-mono);
  font-size: 1.32rem;
  line-height: 1.85;
  letter-spacing: 0.01em;
  color: var(--pending);
  word-spacing: 0.15em;
  user-select: none;
  pointer-events: none;
  position: relative;
  /* Blurred when not focused */
  filter: blur(3px);
  transition: filter var(--t-slow) var(--ease);
}
.typing-section.focused .text-display { filter: none; }

/* Character spans */
.char {
  position: relative;
  display: inline;
  transition: color 0.05s;
}

/* Correct character */
.char.correct { color: var(--correct); }

/* Incorrect character */
.char.incorrect {
  color: var(--incorrect);
  background: var(--incorrect-bg);
  border-radius: 2px;
}

/* Pending (not yet typed) */
.char.pending { color: var(--pending); }

/* Active cursor character */
.char.cursor {
  position: relative;
}
.char.cursor::before {
  content: '';
  position: absolute;
  left: -1px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: var(--cursor-color);
  border-radius: 1px;
  animation: cursorBlink 0.9s ease-in-out infinite;
  box-shadow: 0 0 6px var(--accent-glow);
}
@keyframes cursorBlink {
  0%, 45% { opacity: 1; }
  55%, 100% { opacity: 0; }
}

/* Extra chars typed beyond text length (overflow errors) */
.char.extra {
  color: var(--incorrect);
  text-decoration: underline wavy var(--incorrect);
}

/* ── Ghost Input ── */
.ghost-input {
  position: absolute;
  opacity: 0;
  width: 1px;
  height: 1px;
  top: 0; left: 0;
  border: none;
  padding: 0;
  margin: 0;
  pointer-events: none;
  /* Keep it in the tab order so it can receive focus */
}

/* ── Focus Overlay ── */
.focus-overlay {
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(14,14,16,0.55);
  backdrop-filter: blur(4px);
  transition: opacity var(--t-slow) var(--ease);
  cursor: pointer;
}
.focus-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.focus-msg {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text-dim);
  letter-spacing: 0.04em;
}
.focus-msg svg { width: 18px; height: 18px; opacity: 0.6; flex-shrink: 0; }

/* ─── Mistake Flash (edge flash on error) ─── */
.mistake-flash {
  position: fixed;
  inset: 0;
  z-index: 50;
  pointer-events: none;
  border: 3px solid transparent;
  border-radius: 0;
  transition: border-color 0.05s;
}
.mistake-flash.flash {
  border-color: rgba(241,53,53,0.45);
  animation: flashFade 0.25s var(--ease) forwards;
}
@keyframes flashFade {
  from { border-color: rgba(241,53,53,0.45); }
  to   { border-color: transparent; }
}

/* ═══ RESULTS OVERLAY ═══ */
.results-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  background: rgba(10, 10, 12, 0.85);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  animation: overlayIn 0.4s var(--ease) both;
}
.results-overlay[hidden] { display: none !important; }
@keyframes overlayIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.results-card {
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: var(--radius-lg);
  padding: 40px 48px;
  width: 100%;
  max-width: 580px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 28px;
  animation: cardPop 0.45s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}
@keyframes cardPop {
  from { transform: scale(0.88) translateY(20px); opacity: 0; }
  to   { transform: scale(1) translateY(0); opacity: 1; }
}

.results-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  text-transform: uppercase;
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  width: 100%;
}

.result-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 16px 12px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.result-block--hero {
  grid-column: 1 / -1;
  padding: 24px;
  border-color: var(--accent-dim);
  background: rgba(200,241,53,0.04);
}

.result-val {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1;
}
.result-block--hero .result-val {
  font-size: 3.5rem;
  color: var(--accent);
  letter-spacing: -0.04em;
}

.result-lbl {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--text-dimmer);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Personal best badge */
.pb-badge {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 7px 16px;
  background: rgba(200,241,53,0.12);
  border: 1px solid rgba(200,241,53,0.35);
  border-radius: 99px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--accent);
  animation: pbPop 0.5s cubic-bezier(0.34,1.56,0.64,1) both;
}
.pb-badge[hidden] { display: none !important; }
.pb-badge svg { width: 14px; height: 14px; }
@keyframes pbPop {
  from { transform: scale(0.5); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}

/* Results action buttons */
.results-actions { display: flex; gap: 12px; }

.btn-primary {
  display: flex; align-items: center; gap: 8px;
  padding: 11px 24px;
  background: var(--accent);
  color: var(--bg);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 600;
  border: 2px solid var(--accent);
  transition: all var(--t) var(--ease);
}
.btn-primary svg { width: 15px; height: 15px; }
.btn-primary:hover {
  background: transparent;
  color: var(--accent);
  box-shadow: 0 0 16px var(--accent-glow);
}

.btn-ghost {
  display: flex; align-items: center; gap: 8px;
  padding: 11px 24px;
  background: none;
  color: var(--text-dim);
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  border: 2px solid var(--border-mid);
  transition: all var(--t) var(--ease);
}
.btn-ghost svg { width: 15px; height: 15px; }
.btn-ghost:hover { color: var(--text); border-color: var(--text-dim); }

/* ═══ FOOTER ═══ */
.site-footer {
  margin-top: auto;
  padding: 28px 0 0;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-dimmer);
  letter-spacing: 0.04em;
  animation: fadeDown 0.5s var(--ease) 0.3s both;
}

kbd {
  display: inline-block;
  padding: 1px 6px;
  background: var(--bg-card);
  border: 1px solid var(--border-mid);
  border-radius: 4px;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-dim);
}

/* ═══ ANIMATIONS WHEN ACTIVE ═══ */
/* WPM value highlight when updated */
@keyframes statPop {
  0%   { transform: scale(1.15); color: var(--accent); }
  100% { transform: scale(1); }
}
.stat-pop { animation: statPop 0.25s var(--ease); }

/* Typing shake on error */
@keyframes shakeText {
  0%, 100% { transform: translateX(0); }
  25%       { transform: translateX(-4px); }
  75%       { transform: translateX(4px); }
}
.shake { animation: shakeText 0.15s var(--ease); }

/* ═══ RESPONSIVE ═══ */
@media (max-width: 640px) {
  .app-wrapper { padding: 0 16px 48px; }
  .site-header { padding-top: 24px; }
  .brand-name { font-size: 1.8rem; }

  .controls-bar { flex-wrap: wrap; justify-content: center; }

  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .stat-value { font-size: 1.3rem; }

  .typing-section { padding: 24px 20px; }
  .text-display { font-size: 1.1rem; line-height: 1.8; }

  .results-card { padding: 28px 24px; }
  .results-grid { grid-template-columns: repeat(2, 1fr); }
  .result-block--hero { grid-column: 1 / -1; }
  .result-block--hero .result-val { font-size: 2.5rem; }
  .results-actions { flex-direction: column; width: 100%; }
  .btn-primary, .btn-ghost { justify-content: center; }
}

@media (max-width: 380px) {
  .stats-row { grid-template-columns: repeat(2, 1fr); }
  .text-display { font-size: 1rem; }
}

/* ═══ REDUCED MOTION ═══ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}