/* Typing Speed Test — Styles */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --primary:#6366F1;--primary-hover:#818CF8;--primary-glow:rgba(99,102,241,0.2);
  --bg:#0F0F14;--bg-surface:#18181F;--bg-elevated:#222230;
  --border:rgba(99,102,241,0.12);
  --text:#E2E8F0;--text-muted:#94A3B8;--text-dim:#475569;
  --success:#22C55E;--error:#EF4444;--warning:#F59E0B;
  --radius:12px;--radius-sm:8px;--transition:200ms ease;
  --sans:'Inter',system-ui,sans-serif;--mono:'JetBrains Mono',monospace;
}
[data-theme="light"]{
  --bg:#F8FAFC;--bg-surface:#FFFFFF;--bg-elevated:#F1F5F9;
  --border:rgba(0,0,0,0.08);--text:#1E293B;--text-muted:#64748B;--text-dim:#CBD5E1;
}
html{font-size:16px;-webkit-font-smoothing:antialiased}
body{font-family:var(--sans);background:var(--bg);color:var(--text);min-height:100vh;display:flex;flex-direction:column;line-height:1.5}

.header{background:var(--bg-surface);border-bottom:1px solid var(--border);padding:0.75rem 1.5rem}
.header-inner{max-width:800px;margin:0 auto;display:flex;align-items:center;justify-content:space-between}
.logo{font-size:1.15rem;font-weight:700}
.header-controls{display:flex;align-items:center;gap:0.75rem}
.mode-switcher{display:flex;background:var(--bg-elevated);border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--border)}
.mode-btn{font-family:var(--sans);font-size:0.8rem;font-weight:600;padding:0.4rem 1rem;border:none;background:transparent;color:var(--text-muted);cursor:pointer;transition:all var(--transition)}
.mode-btn.active{background:var(--primary);color:#fff}
.mode-btn:hover:not(.active){color:var(--text)}
.icon-btn{font-size:1.1rem;width:36px;height:36px;border:1px solid var(--border);border-radius:var(--radius-sm);background:transparent;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:border-color var(--transition)}
.icon-btn:hover{border-color:var(--primary)}

.main{flex:1;padding:1.5rem;max-width:800px;margin:0 auto;width:100%;display:flex;flex-direction:column;gap:1.25rem}

.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:0.75rem}
.stat-card{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);padding:1rem;text-align:center;transition:border-color var(--transition)}
.stat-card:hover{border-color:rgba(99,102,241,0.3)}
.stat-value{display:block;font-size:2rem;font-weight:700;font-family:var(--mono);color:var(--primary);line-height:1.2}
.stat-label{font-size:0.72rem;font-weight:600;text-transform:uppercase;letter-spacing:0.06em;color:var(--text-muted);margin-top:0.25rem}

.text-display-wrap{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;min-height:120px}
.text-display{font-family:var(--mono);font-size:1.1rem;line-height:2;letter-spacing:0.02em;user-select:none}
.char{transition:color 50ms}
.char-correct{color:var(--success)}
.char-incorrect{color:var(--error);text-decoration:underline;text-decoration-color:var(--error)}
.char-current{background:var(--primary-glow);border-radius:2px;outline:2px solid var(--primary);animation:blink 1s step-end infinite}
.char-pending{color:var(--text-dim)}

.type-input{font-family:var(--mono);font-size:1rem;line-height:1.6;width:100%;background:var(--bg-surface);color:var(--text);border:2px solid var(--border);border-radius:var(--radius);padding:1rem;resize:none;transition:border-color var(--transition)}
.type-input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow)}

.action-row{display:flex;gap:0.5rem;justify-content:center}
.secondary-btn{font-family:var(--sans);font-size:0.85rem;font-weight:500;padding:0.55rem 1.25rem;border:1px solid var(--border);border-radius:var(--radius-sm);background:transparent;color:var(--text-muted);cursor:pointer;transition:all var(--transition)}
.secondary-btn:hover{border-color:var(--primary);color:var(--primary)}

.graph-section{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem}
.graph-section h3{font-size:0.85rem;font-weight:600;color:var(--text-muted);margin-bottom:0.75rem}
#wpm-chart{width:100%;height:auto;display:block}

.results-section{background:var(--bg-surface);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem}
.results-section h3{font-size:0.85rem;font-weight:600;color:var(--text-muted);margin-bottom:0.75rem}
.results-content{font-family:var(--mono);font-size:0.9rem;line-height:1.8}
.result-big{font-size:2.5rem;font-weight:700;color:var(--primary);text-align:center;margin-bottom:0.5rem}

.footer{text-align:center;padding:0.75rem 1.5rem;border-top:1px solid var(--border);color:var(--text-dim);font-size:0.75rem}

.hidden{display:none!important}
@keyframes blink{0%,100%{opacity:1}50%{opacity:0.5}}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}

@media(max-width:600px){
  .stats-row{grid-template-columns:repeat(2,1fr)}
  .text-display{font-size:0.95rem}
  .stat-value{font-size:1.5rem}
}