/* ===== SEHACK TYPING CSS ===== */
:root {
  --t-bg: #0d0d0d;
  --t-bg2: #111111;
  --t-surface: #1a1a1a;
  --t-border: rgba(0,255,70,0.15);
  --t-accent: #00ff46;
  --t-accent2: #00cc37;
  --t-accent-dim: rgba(0,255,70,0.08);
  --t-accent-glow: rgba(0,255,70,0.25);
  --t-text: #e0e0e0;
  --t-text-dim: #666;
  --t-text-muted: #333;
  --t-error: #ff4055;
  --t-error-dim: rgba(255,64,85,0.15);
  --t-correct: #00cc37;
  --t-cursor: #00ff46;
  --t-font: 'JetBrains Mono', monospace;
  --t-display: 'Syne', sans-serif;
  --t-radius: 8px;
  --t-transition: 0.2s ease;
}

/* Themes */
body.theme-midnight {
  --t-bg: #0a0a1a; --t-bg2: #0d0d22; --t-surface: #14142e;
  --t-accent: #7b7fff; --t-accent2: #5a5fd4;
  --t-accent-dim: rgba(123,127,255,0.1); --t-accent-glow: rgba(123,127,255,0.3);
  --t-correct: #7b7fff; --t-cursor: #7b7fff;
  --t-border: rgba(123,127,255,0.15);
}
body.theme-retro {
  --t-bg: #1a1000; --t-bg2: #201400; --t-surface: #2a1c00;
  --t-accent: #ffb800; --t-accent2: #cc9200;
  --t-accent-dim: rgba(255,184,0,0.1); --t-accent-glow: rgba(255,184,0,0.3);
  --t-correct: #ffb800; --t-cursor: #ffb800;
  --t-border: rgba(255,184,0,0.15);
}
body.theme-ocean {
  --t-bg: #001520; --t-bg2: #001c2a; --t-surface: #002435;
  --t-accent: #00d4ff; --t-accent2: #00a8cc;
  --t-accent-dim: rgba(0,212,255,0.1); --t-accent-glow: rgba(0,212,255,0.3);
  --t-correct: #00d4ff; --t-cursor: #00d4ff;
  --t-border: rgba(0,212,255,0.15);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--t-bg);
  color: var(--t-text);
  font-family: var(--t-font);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background 0.3s ease, color 0.3s ease;
}

::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: var(--t-bg); }
::-webkit-scrollbar-thumb { background: var(--t-accent); border-radius: 2px; }
::selection { background: var(--t-accent-dim); color: var(--t-accent); }

/* ===== LOADER ===== */
#t-loader {
  position: fixed; inset: 0;
  background: var(--t-bg);
  display: flex; align-items: center; justify-content: center;
  z-index: 9999;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
#t-loader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.tl-inner { text-align: center; }
.tl-logo {
  font-family: var(--t-display);
  font-size: 3rem; font-weight: 800;
  color: var(--t-accent);
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
  animation: glitch 0.4s infinite;
}
@keyframes glitch {
  0%, 92%, 100% { text-shadow: none; transform: none; }
  93% { text-shadow: 2px 0 var(--t-error); transform: translateX(-2px); }
  96% { text-shadow: -2px 0 var(--t-accent2); transform: translateX(2px); }
}
.tl-bar {
  width: 200px; height: 2px;
  background: var(--t-surface);
  border-radius: 1px; margin: 0 auto 1rem;
  overflow: hidden;
}
.tl-fill {
  height: 100%; width: 0;
  background: var(--t-accent);
  animation: loadBar 1.5s ease forwards;
}
@keyframes loadBar { to { width: 100%; } }
.tl-sub {
  font-size: 0.72rem;
  color: var(--t-text-dim);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* ===== HEADER ===== */
#t-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--t-border);
  background: rgba(13,13,13,0.9);
  backdrop-filter: blur(20px);
  position: sticky; top: 0; z-index: 100;
}
.t-back {
  font-size: 0.8rem;
  color: var(--t-text-dim);
  letter-spacing: 0.05em;
  display: flex; align-items: center; gap: 0.5rem;
  transition: color var(--t-transition);
}
.t-back:hover { color: var(--t-accent); }
.t-back-arrow { font-size: 1rem; }
.t-logo {
  font-family: var(--t-display);
  font-size: 1.4rem; font-weight: 800;
  color: var(--t-text);
  letter-spacing: -0.03em;
}
.t-logo span { color: var(--t-accent); }
.t-header-right { display: flex; gap: 0.5rem; }
.t-icon-btn {
  background: var(--t-surface);
  border: 1px solid var(--t-border);
  color: var(--t-text-dim);
  padding: 0.4rem 0.7rem;
  border-radius: var(--t-radius);
  cursor: pointer; font-size: 1rem;
  transition: all var(--t-transition);
}
.t-icon-btn:hover { border-color: var(--t-accent); color: var(--t-accent); }

/* ===== SETTINGS PANEL ===== */
.settings-panel {
  position: fixed;
  top: 0; right: -420px;
  width: 380px; height: 100vh;
  background: var(--t-bg2);
  border-left: 1px solid var(--t-border);
  z-index: 500;
  transition: right 0.4s cubic-bezier(0.25,0.8,0.25,1);
  overflow-y: auto;
}
.settings-panel.open { right: 0; }
.sp-inner { padding: 5rem 1.5rem 2rem; }
.sp-inner h3 {
  font-family: var(--t-display);
  font-size: 1.3rem; font-weight: 700;
  color: var(--t-text); margin-bottom: 2rem;
}
.sp-section { margin-bottom: 2rem; }
.sp-section > label {
  display: block;
  font-size: 0.7rem;
  color: var(--t-text-dim);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.7rem;
}
.sp-row { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.theme-btn, .mode-btn, .dur-btn, .sound-btn {
  background: var(--t-surface);
  border: 1px solid var(--t-border);
  color: var(--t-text-dim);
  padding: 0.4rem 0.8rem;
  border-radius: var(--t-radius);
  cursor: pointer; font-size: 0.8rem;
  font-family: var(--t-font);
  transition: all var(--t-transition);
}
.theme-btn.active, .mode-btn.active, .dur-btn.active, .sound-btn.active,
.theme-btn:hover, .mode-btn:hover, .dur-btn:hover, .sound-btn:hover {
  background: var(--t-accent-dim);
  border-color: var(--t-accent);
  color: var(--t-accent);
}
.letter-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin-top: 0.5rem;
}
.lg-key {
  background: var(--t-surface);
  border: 1px solid var(--t-border);
  color: var(--t-text-dim);
  padding: 0.4rem;
  border-radius: 4px;
  cursor: pointer; font-size: 0.75rem;
  text-align: center;
  transition: all var(--t-transition);
  text-transform: uppercase;
}
.lg-key.active {
  background: var(--t-accent-dim);
  border-color: var(--t-accent);
  color: var(--t-accent);
}

/* ===== MAIN ===== */
#t-main {
  max-width: 900px; margin: 0 auto;
  padding: 2rem 2rem 1rem;
  position: relative;
}

/* ===== STATS BAR ===== */
.stats-bar {
  display: flex; justify-content: center; gap: 3rem;
  margin-bottom: 1.5rem;
}
.stat-item { text-align: center; }
.si-val {
  font-family: var(--t-display);
  font-size: 2rem; font-weight: 700;
  color: var(--t-accent);
  line-height: 1;
  transition: all 0.2s ease;
}
.si-label {
  font-size: 0.65rem;
  color: var(--t-text-dim);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: 0.2rem;
}

/* ===== COMBO BAR ===== */
.combo-bar-wrap {
  height: 3px;
  background: var(--t-surface);
  border-radius: 2px;
  margin-bottom: 1.5rem;
  overflow: hidden;
  position: relative;
}
.combo-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--t-accent2), var(--t-accent));
  border-radius: 2px;
  transition: width 0.3s ease;
  box-shadow: 0 0 8px var(--t-accent-glow);
}
.combo-label {
  position: absolute; right: 0; top: -1.5rem;
  font-size: 0.65rem; color: var(--t-accent);
  letter-spacing: 0.1em;
  opacity: 0; transition: opacity 0.3s;
}

/* ===== TYPING ZONE ===== */
.typing-zone {
  background: var(--t-bg2);
  border: 1px solid var(--t-border);
  border-radius: var(--t-radius);
  padding: 2.5rem;
  min-height: 120px;
  position: relative;
  cursor: text;
  overflow: hidden;
  transition: border-color var(--t-transition), box-shadow var(--t-transition);
}
.typing-zone:focus, .typing-zone.active {
  border-color: var(--t-accent);
  box-shadow: 0 0 30px var(--t-accent-glow);
  outline: none;
}
.tz-words {
  font-size: 1.5rem;
  line-height: 2.2;
  letter-spacing: 0.03em;
  word-break: break-word;
  user-select: none;
}
.tw-char { position: relative; transition: color 0.1s; }
.tw-char.correct { color: var(--t-correct); }
.tw-char.error { color: var(--t-error); background: var(--t-error-dim); border-radius: 2px; }
.tw-char.pending { color: var(--t-text-dim); }
.tw-char.active { color: var(--t-text); }
.tw-space { display: inline-block; width: 0.5em; }

.tz-cursor {
  position: absolute;
  width: 2px; height: 1.6rem;
  background: var(--t-cursor);
  border-radius: 1px;
  animation: blink 1s step-end infinite;
  box-shadow: 0 0 8px var(--t-accent-glow);
  transition: left 0.05s, top 0.1s;
  pointer-events: none;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

#hiddenInput {
  position: absolute; opacity: 0; pointer-events: none;
  top: 0; left: 0; width: 1px; height: 1px;
}

/* ===== OVERLAYS ===== */
.start-overlay, .result-overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(13,13,13,0.92);
  backdrop-filter: blur(10px);
  border-radius: var(--t-radius);
  z-index: 10;
}
.result-overlay.hidden, .start-overlay.hidden { display: none; }
.so-inner { text-align: center; }
.so-logo {
  font-family: var(--t-display);
  font-size: 2.5rem; font-weight: 800;
  color: var(--t-accent);
  margin-bottom: 0.5rem;
  letter-spacing: -0.03em;
}
.so-sub { font-size: 0.85rem; color: var(--t-text-dim); margin-bottom: 1rem; }
.so-hint {
  font-size: 0.8rem;
  color: var(--t-text-muted);
  border: 1px solid var(--t-border);
  padding: 0.5rem 1.2rem;
  border-radius: 100px;
  display: inline-block;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { border-color: var(--t-border); }
  50% { border-color: var(--t-accent); }
}

/* Result overlay */
.ro-inner {
  width: 100%; max-width: 600px; padding: 2rem;
  text-align: center;
}
.ro-title {
  font-family: var(--t-display);
  font-size: 1.8rem; font-weight: 700;
  color: var(--t-accent); margin-bottom: 2rem;
}
.ro-stats {
  display: flex; justify-content: center; gap: 2rem;
  margin-bottom: 2rem; flex-wrap: wrap;
}
.ros-item { text-align: center; }
.ros-val {
  font-family: var(--t-display);
  font-size: 2.2rem; font-weight: 700;
  color: var(--t-text); line-height: 1;
}
.ros-label {
  font-size: 0.65rem;
  color: var(--t-text-dim);
  letter-spacing: 0.15em; text-transform: uppercase;
  margin-top: 0.3rem;
}
.ro-heatmap { margin-bottom: 2rem; }
.roh-title {
  font-size: 0.7rem; color: var(--t-text-dim);
  letter-spacing: 0.1em; text-transform: uppercase;
  margin-bottom: 0.8rem;
}
.roh-grid {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 4px;
}
.roh-key {
  width: 30px; height: 30px;
  border-radius: 4px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.72rem; font-weight: 600;
  text-transform: uppercase;
  border: 1px solid transparent;
  transition: all 0.2s;
}
.ro-btns { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }
.ro-btn-primary {
  background: var(--t-accent); color: var(--t-bg);
  border: none; padding: 0.8rem 2rem;
  border-radius: var(--t-radius); cursor: pointer;
  font-family: var(--t-display); font-size: 0.95rem; font-weight: 700;
  transition: all var(--t-transition);
}
.ro-btn-primary:hover { background: var(--t-accent2); transform: translateY(-2px); }
.ro-btn-outline {
  background: transparent; color: var(--t-text-dim);
  border: 1px solid var(--t-border); padding: 0.8rem 2rem;
  border-radius: var(--t-radius); cursor: pointer;
  font-family: var(--t-font); font-size: 0.9rem;
  transition: all var(--t-transition);
}
.ro-btn-outline:hover { border-color: var(--t-accent); color: var(--t-accent); }

/* ===== KEYBOARD ===== */
.keyboard-wrap {
  max-width: 900px; margin: 1.5rem auto;
  padding: 0 2rem;
}
.keyboard {
  display: flex; flex-direction: column; gap: 6px;
  user-select: none;
  margin-bottom: 0.8rem;
}
.kb-row { display: flex; gap: 5px; justify-content: center; }
.kb-key {
  min-width: 38px; height: 38px;
  background: var(--t-surface);
  border: 1px solid var(--t-border);
  border-radius: 5px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.75rem; color: var(--t-text-dim);
  text-transform: uppercase;
  transition: all 0.15s ease;
  position: relative; overflow: hidden;
  cursor: default;
}
.kb-key.wide-1 { min-width: 56px; }
.kb-key.wide-2 { min-width: 72px; }
.kb-key.wide-3 { min-width: 88px; }
.kb-key.spacebar { min-width: 280px; }
.kb-key.kb-active {
  background: var(--t-accent-dim);
  border-color: var(--t-accent);
  color: var(--t-accent);
  box-shadow: 0 0 12px var(--t-accent-glow);
}
.kb-key.kb-correct {
  background: rgba(0, 204, 55, 0.1);
  border-color: var(--t-correct);
  color: var(--t-correct);
}
.kb-key.kb-error {
  background: var(--t-error-dim);
  border-color: var(--t-error);
  color: var(--t-error);
}
.kb-key.kb-flash {
  animation: keyFlash 0.15s ease;
}
@keyframes keyFlash {
  0% { transform: scale(0.9); }
  100% { transform: scale(1); }
}

.kb-legend {
  display: flex; gap: 1.5rem; justify-content: center;
  font-size: 0.7rem; color: var(--t-text-dim);
}
.kbl-item { display: flex; align-items: center; gap: 0.4rem; }
.kbl-dot { width: 8px; height: 8px; border-radius: 50%; }
.kbl-error { background: var(--t-error); }
.kbl-good { background: var(--t-correct); }
.kbl-active { background: var(--t-accent); box-shadow: 0 0 6px var(--t-accent-glow); }

/* ===== PROGRESS SECTION ===== */
.progress-section {
  max-width: 900px; margin: 0 auto 3rem;
  padding: 0 2rem;
}
.ps-inner {
  background: var(--t-bg2);
  border: 1px solid var(--t-border);
  border-radius: var(--t-radius);
  padding: 1.5rem;
}
.ps-title {
  font-size: 0.7rem; color: var(--t-text-dim);
  letter-spacing: 0.15em; text-transform: uppercase;
  margin-bottom: 1rem;
}
.lp-grid {
  display: flex; flex-wrap: wrap; gap: 8px;
}
.lp-key {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  background: var(--t-surface);
  border: 1px solid var(--t-border);
  border-radius: var(--t-radius);
  padding: 0.6rem 0.8rem;
  min-width: 50px;
  transition: all var(--t-transition);
}
.lp-key.unlocked { border-color: var(--t-accent); }
.lp-key.locked { opacity: 0.4; }
.lp-letter {
  font-size: 0.9rem; font-weight: 700;
  text-transform: uppercase;
  color: var(--t-text);
}
.lp-key.unlocked .lp-letter { color: var(--t-accent); }
.lp-bar-bg {
  width: 100%; height: 3px;
  background: var(--t-border);
  border-radius: 2px; overflow: hidden;
}
.lp-bar-fill {
  height: 100%;
  background: var(--t-accent);
  border-radius: 2px;
  transition: width 0.3s ease;
}
.lp-pct { font-size: 0.6rem; color: var(--t-text-dim); }

/* ===== RESPONSIVE ===== */
@media (max-width: 700px) {
  .stats-bar { gap: 1.2rem; }
  .si-val { font-size: 1.4rem; }
  .tz-words { font-size: 1.1rem; }
  .typing-zone { padding: 1.5rem; }
  .keyboard { display: none; }
  .settings-panel { width: 100%; }
}