/* ============================================================
   TypeRacer — style.css
   Dark / Light theme with monospace editorial aesthetic
   ============================================================ */

/* ---------- CSS Variables ---------- */
:root {
  --font-display : 'Syne', sans-serif;
  --font-mono    : 'DM Mono', monospace;

  /* Dark theme (default) */
  --bg            : #0d0d10;
  --bg-card       : #16161c;
  --bg-card-2     : #1e1e28;
  --border        : rgba(255,255,255,0.07);
  --text-primary  : #e8e8f0;
  --text-secondary: #7a7a9a;
  --text-muted    : #44445a;
  --accent        : #7c6af7;         /* violet */
  --accent-glow   : rgba(124,106,247,0.25);
  --correct       : #4ade80;         /* green-400 */
  --correct-bg    : rgba(74,222,128,0.08);
  --wrong         : #f87171;         /* red-400 */
  --wrong-bg      : rgba(248,113,113,0.12);
  --cursor-color  : #7c6af7;
  --stat-high     : #f0c040;
  --shadow        : 0 20px 60px rgba(0,0,0,0.45);
  --radius        : 16px;
  --transition    : 0.25s ease;
}

[data-theme="light"] {
  --bg            : #f0eff8;
  --bg-card       : #ffffff;
  --bg-card-2     : #f7f6ff;
  --border        : rgba(0,0,0,0.08);
  --text-primary  : #1a1a2e;
  --text-secondary: #5a5a7a;
  --text-muted    : #b0b0c8;
  --accent        : #6254e8;
  --accent-glow   : rgba(98,84,232,0.18);
  --correct       : #16a34a;
  --correct-bg    : rgba(22,163,74,0.08);
  --wrong         : #dc2626;
  --wrong-bg      : rgba(220,38,38,0.10);
  --cursor-color  : #6254e8;
  --stat-high     : #d97706;
  --shadow        : 0 16px 40px rgba(60,50,120,0.12);
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--font-mono);
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 32px 16px 64px;
  transition: background var(--transition), color var(--transition);
  position: relative;
  overflow-x: hidden;
}

/* subtle grid texture */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 0;
}

/* ---------- Theme Toggle ---------- */
.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 100;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 8px 14px;
  cursor: pointer;
  font-size: 18px;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, background var(--transition);
}
.theme-toggle:hover { transform: scale(1.12) rotate(12deg); }

/* ---------- App Wrapper ---------- */
.app-wrapper {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 820px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}

/* ---------- Header ---------- */
.header {
  text-align: center;
  padding-top: 8px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
}

.logo-symbol {
  font-size: 2rem;
  line-height: 1;
  filter: drop-shadow(0 0 12px var(--accent-glow));
}

.logo-text {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.tagline {
  font-size: 0.82rem;
  color: var(--text-secondary);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

/* ---------- Stats Bar ---------- */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 12px;
  text-align: center;
  transition: background var(--transition), border var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--border);
  transition: background 0.3s;
}

.stat-card.highlight::after { background: var(--accent); }

/* timer pulse when low */
#statTimer.danger .stat-value { color: var(--wrong); animation: pulse 1s infinite; }
#statTimer.danger::after       { background: var(--wrong); }

.stat-value {
  display: block;
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 700;
  line-height: 1;
  color: var(--text-primary);
  transition: color 0.3s;
}

.stat-card.highlight .stat-value { color: var(--accent); }

.stat-label {
  display: block;
  font-size: 0.72rem;
  color: var(--text-secondary);
  letter-spacing: 0.10em;
  text-transform: uppercase;
  margin-top: 6px;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.4; }
}

/* ---------- Typing Card ---------- */
.typing-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 32px 28px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: background var(--transition), border var(--transition);
}

/* ---------- Paragraph Container ---------- */
.paragraph-container {
  position: relative;
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 22px;
  min-height: 110px;
  transition: background var(--transition);
  overflow: hidden;
}

.paragraph-text {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--text-muted);
  letter-spacing: 0.01em;
  word-break: break-word;
  /* characters will be wrapped in spans */
}

/* Character state styles */
.paragraph-text .char            { transition: color 0.1s, background 0.1s; border-radius: 2px; }
.paragraph-text .char.correct    { color: var(--correct); background: var(--correct-bg); }
.paragraph-text .char.wrong      { color: var(--wrong); background: var(--wrong-bg); text-decoration: underline; }
.paragraph-text .char.current    { background: var(--accent-glow); border-bottom: 2px solid var(--cursor-color); }

/* ---------- Input Wrapper ---------- */
.input-wrapper {
  position: relative;
}

.typing-input {
  width: 100%;
  background: var(--bg-card-2);
  border: 1.5px solid var(--border);
  border-radius: 10px;
  padding: 14px 18px;
  font-family: var(--font-mono);
  font-size: 0.98rem;
  color: var(--text-primary);
  resize: none;
  outline: none;
  caret-color: var(--accent);
  transition: border-color 0.2s, background var(--transition);
  line-height: 1.7;
}

.typing-input::placeholder { color: var(--text-muted); }

.typing-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.typing-input:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

/* Animated bottom border on input */
.input-border-anim {
  position: absolute;
  bottom: 0; left: 10%; right: 10%;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  transform: scaleX(0);
  transition: transform 0.3s ease;
  pointer-events: none;
}

.typing-input:focus ~ .input-border-anim { transform: scaleX(1); }

/* ---------- Restart Button ---------- */
.restart-btn {
  align-self: center;
  background: transparent;
  border: 1.5px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 10px 28px;
  border-radius: 50px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 0.2s, color 0.2s, transform 0.15s;
}

.restart-btn:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--accent-glow);
}

.restart-btn:active { transform: translateY(0); }

.btn-icon { font-size: 1.1rem; display: inline-block; }
.restart-btn:hover .btn-icon { animation: spin 0.4s ease; }

@keyframes spin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(-360deg); }
}

/* ---------- Results Modal ---------- */
.results-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.35s ease;
  padding: 16px;
}

.results-overlay.show {
  opacity: 1;
  pointer-events: all;
}

.results-modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 40px 36px 36px;
  width: 100%;
  max-width: 460px;
  text-align: center;
  box-shadow: 0 32px 80px rgba(0,0,0,0.5);
  transform: translateY(30px) scale(0.95);
  transition: transform 0.35s cubic-bezier(.34,1.56,.64,1);
}

.results-overlay.show .results-modal {
  transform: translateY(0) scale(1);
}

.results-header { margin-bottom: 28px; }

.results-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 10px;
  animation: pop 0.5s cubic-bezier(.34,1.56,.64,1) 0.1s both;
}

@keyframes pop {
  from { transform: scale(0); opacity: 0; }
  to   { transform: scale(1); opacity: 1; }
}

.results-header h2 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 28px;
}

.result-item {
  background: var(--bg-card-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 12px;
}

.result-item.accent { border-color: var(--accent); background: var(--accent-glow); }

.result-val {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.result-item.accent .result-val { color: var(--accent); }

.result-lbl {
  display: block;
  font-size: 0.72rem;
  color: var(--text-secondary);
  letter-spacing: 0.10em;
  text-transform: uppercase;
  margin-top: 5px;
}

.modal-restart-btn {
  width: 100%;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: 14px;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: opacity 0.2s, transform 0.15s, box-shadow 0.2s;
  box-shadow: 0 6px 20px var(--accent-glow);
}

.modal-restart-btn:hover {
  opacity: 0.88;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px var(--accent-glow);
}

.modal-restart-btn:active { transform: translateY(0); }

/* ---------- Misc Animations ---------- */

/* WPM counter bump */
@keyframes bump {
  0%   { transform: scale(1); }
  50%  { transform: scale(1.25); }
  100% { transform: scale(1); }
}

.bump { animation: bump 0.2s ease; }

/* mistake shake */
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25%       { transform: translateX(-4px); }
  75%       { transform: translateX(4px); }
}

.shake { animation: shake 0.18s ease; }

/* ---------- Responsive ---------- */
@media (max-width: 580px) {
  .logo-text        { font-size: 1.7rem; }
  .typing-card      { padding: 20px 16px; }
  .stat-value       { font-size: 1.9rem; }
  .paragraph-text   { font-size: 0.95rem; }
  .typing-input     { font-size: 0.9rem; }
  .results-modal    { padding: 28px 20px; }
  .result-val       { font-size: 1.6rem; }
}

@media (max-width: 360px) {
  .stats-bar { gap: 8px; }
  .stat-value { font-size: 1.6rem; }
}