:root{
  --bg:#000000;
  --fg:#ffffff;
  --fg-dim:rgba(255,255,255,0.58);
  --fg-faint:rgba(255,255,255,0.34);
  --line:rgba(255,255,255,0.14);
  --accent:#ff7a3d;
  --accent-dim:rgba(255,122,61,0.16);
  --danger:#ff5c5c;
  --radius:16px;
  --safe-t:env(safe-area-inset-top,0px);
  --safe-b:env(safe-area-inset-bottom,0px);
}

*{box-sizing:border-box;}
html,body{height:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--fg);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
  overscroll-behavior:none;
}

button{font-family:inherit;}

.app{
  min-height:100dvh;
  min-height:100vh;
  position:relative;
}

.screen{
  display:none;
  min-height:100dvh;
  min-height:100vh;
  padding:calc(28px + var(--safe-t)) 24px calc(28px + var(--safe-b));
}
.screen.active{
  display:flex;
  flex-direction:column;
  animation:fadeIn .35s ease both;
}

@keyframes fadeIn{ from{opacity:0; transform:translateY(6px);} to{opacity:1; transform:none;} }

.stack{
  width:100%;
  max-width:520px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:14px;
  flex:1;
}
.stack.center{
  justify-content:center;
  align-items:center;
  text-align:center;
  flex:1;
}

.mark{ font-size:44px; line-height:1; margin-bottom:4px; }

.title{
  font-size:clamp(40px,12vw,64px);
  line-height:0.92;
  letter-spacing:-0.02em;
  font-weight:800;
  margin:0 0 6px;
}

.h2{
  font-size:26px;
  font-weight:700;
  letter-spacing:-0.01em;
  margin:6px 0 2px;
}
.h3{
  font-size:15px;
  font-weight:700;
  letter-spacing:0.04em;
  text-transform:uppercase;
  color:var(--fg-dim);
  margin:22px 0 10px;
}

.sub{
  color:var(--fg-dim);
  font-size:16px;
  line-height:1.5;
  margin:0 0 8px;
}

.foot{
  color:var(--fg-faint);
  font-size:13px;
  margin-top:28px;
}

.label{
  color:var(--fg-dim);
  font-size:13px;
  font-weight:600;
  letter-spacing:0.03em;
  text-transform:uppercase;
  margin-top:6px;
}

/* buttons */
.btn{
  appearance:none;
  border:none;
  border-radius:999px;
  padding:16px 28px;
  font-size:16px;
  font-weight:700;
  cursor:pointer;
  transition:transform .15s ease, opacity .15s ease, background .15s ease;
  width:100%;
}
.btn:active{ transform:scale(0.97); }
.btn-primary{
  background:var(--fg);
  color:#000;
}
.btn-primary:disabled{
  background:rgba(255,255,255,0.16);
  color:rgba(255,255,255,0.35);
  cursor:not-allowed;
}
.btn-primary:not(:disabled):hover{ opacity:0.88; }
.btn-big{ padding:20px 28px; font-size:17px; }
.btn-ghost{
  background:transparent;
  color:var(--fg);
  border:1px solid var(--line);
}

.btn-back{
  appearance:none;
  border:none;
  background:transparent;
  color:var(--fg-dim);
  font-size:22px;
  align-self:flex-start;
  padding:4px 10px 4px 0;
  cursor:pointer;
}

/* stepper */
.stepper{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:22px;
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line);
  border-radius:999px;
  padding:10px 18px;
  width:fit-content;
  margin:2px auto 4px;
}
.stepper-btn{
  appearance:none;
  border:none;
  background:rgba(255,255,255,0.1);
  color:var(--fg);
  width:38px;
  height:38px;
  border-radius:50%;
  font-size:20px;
  cursor:pointer;
  line-height:1;
}
.stepper-btn:active{ transform:scale(0.92); }
.stepper-val{
  font-size:22px;
  font-weight:800;
  min-width:28px;
  text-align:center;
}

/* inputs */
.input-wrap{ position:relative; }
.textarea{
  width:100%;
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line);
  border-radius:var(--radius);
  color:var(--fg);
  padding:16px 52px 16px 16px;
  font-size:17px;
  line-height:1.45;
  resize:none;
  font-family:inherit;
}
.textarea:focus{
  outline:none;
  border-color:rgba(255,255,255,0.4);
}
.mic-btn{
  position:absolute;
  right:10px;
  bottom:12px;
  width:38px;
  height:38px;
  border-radius:50%;
  border:none;
  background:rgba(255,255,255,0.12);
  color:var(--fg);
  font-size:17px;
  cursor:pointer;
}
.mic-btn.listening{
  background:var(--danger);
  animation:pulse 1s infinite;
}
@keyframes pulse{ 0%,100%{opacity:1;} 50%{opacity:0.55;} }

.hint-row{
  display:flex;
  justify-content:space-between;
  color:var(--fg-faint);
  font-size:13px;
  padding:0 2px;
}

/* pass screen */
.player-badge{
  display:inline-block;
  background:var(--accent-dim);
  color:var(--accent);
  font-weight:700;
  font-size:13px;
  letter-spacing:0.03em;
  padding:7px 16px;
  border-radius:999px;
  margin-bottom:14px;
}
.dots{
  display:flex;
  gap:7px;
  margin-top:26px;
}
.dot{
  width:7px; height:7px; border-radius:50%;
  background:var(--line);
}
.dot.done{ background:var(--accent); }
.dot.current{ background:var(--fg); }

/* reveal */
#screen-reveal{ padding-top:calc(0px + var(--safe-t)); justify-content:flex-start; }
.timer-track{
  height:4px;
  width:100%;
  background:rgba(255,255,255,0.1);
}
.timer-bar{
  height:100%;
  width:100%;
  background:var(--accent);
  transform-origin:left;
  transform:scaleX(1);
}
.reveal-stack{ padding:0 8px; }
.reveal-msg{
  font-size:clamp(26px,7vw,40px);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-0.01em;
  max-width:640px;
  opacity:0;
  transform:translateY(8px) scale(0.98);
  transition:opacity .5s ease, transform .5s ease;
}
.reveal-msg.show{ opacity:1; transform:none; }
.reveal-msg.hide{ opacity:0; transform:translateY(-8px) scale(0.98); transition:opacity .5s ease, transform .5s ease; }

/* results */
.drift-card{
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 20px;
  text-align:center;
}
.drift-pct{
  font-size:52px;
  font-weight:800;
  color:var(--accent);
  line-height:1;
}
.drift-label{
  color:var(--fg-dim);
  font-size:14px;
  margin-top:8px;
}

.compare{ display:flex; flex-direction:column; gap:10px; }
.compare-block{
  background:rgba(255,255,255,0.04);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:16px;
}
.compare-tag{
  font-size:11px;
  font-weight:800;
  letter-spacing:0.08em;
  color:var(--fg-faint);
  margin-bottom:8px;
}
.compare-text{
  margin:0;
  font-size:16px;
  line-height:1.6;
}
.compare-text del{
  color:var(--danger);
  opacity:0.75;
  text-decoration:line-through;
  text-decoration-thickness:1.5px;
}
.compare-text ins{
  color:var(--accent);
  text-decoration:none;
  font-weight:700;
}

.timeline{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.timeline-item{
  display:flex;
  gap:12px;
  padding:14px 0;
  border-top:1px solid var(--line);
}
.timeline-item:first-child{ border-top:none; }
.timeline-num{
  color:var(--fg-faint);
  font-size:13px;
  font-weight:700;
  min-width:60px;
  padding-top:2px;
}
.timeline-text{
  font-size:15px;
  line-height:1.5;
  color:var(--fg);
}

.results-actions{
  display:flex;
  flex-direction:column;
  gap:10px;
  margin-top:24px;
  margin-bottom:10px;
}

.gallery-item{
  cursor:pointer;
  transition:opacity .15s ease;
}
.gallery-item:active{ opacity:0.6; }
.gallery-meta{
  color:var(--fg-faint);
  font-size:12px;
  margin-top:4px;
}

/* join code entry */
.code-input{
  width:100%;
  background:rgba(255,255,255,0.05);
  border:1px solid var(--line);
  border-radius:var(--radius);
  color:var(--fg);
  text-align:center;
  font-size:40px;
  font-weight:800;
  letter-spacing:0.3em;
  text-transform:uppercase;
  padding:20px 10px 20px 20px;
  font-family:inherit;
}
.code-input:focus{
  outline:none;
  border-color:rgba(255,255,255,0.4);
}
.error-text{
  color:var(--danger);
  font-size:14px;
  text-align:center;
  margin:0;
}

/* lobby */
.room-code{
  font-size:clamp(48px,16vw,72px);
  font-weight:800;
  letter-spacing:0.15em;
  margin:6px 0 4px;
}
.btn-link{
  appearance:none;
  border:none;
  background:transparent;
  color:var(--accent);
  font-size:14px;
  font-weight:700;
  cursor:pointer;
  padding:6px;
}
.lobby-count{
  font-size:15px;
  color:var(--fg-dim);
  margin-top:22px;
}

.toast{
  position:fixed;
  left:50%;
  top:calc(16px + var(--safe-t));
  transform:translateX(-50%);
  background:#161616;
  border:1px solid var(--line);
  color:var(--fg);
  font-size:14px;
  font-weight:600;
  padding:12px 20px;
  border-radius:999px;
  z-index:50;
  box-shadow:0 8px 24px rgba(0,0,0,0.4);
  animation:toastIn .25s ease both;
}
@keyframes toastIn{ from{opacity:0; transform:translateX(-50%) translateY(-8px);} to{opacity:1; transform:translateX(-50%) translateY(0);} }

/* waiting */
.pulse-dots .dot{
  width:9px; height:9px;
  animation:dotPulse 1.2s ease-in-out infinite;
}
.pulse-dots .dot:nth-child(2){ animation-delay:.15s; }
.pulse-dots .dot:nth-child(3){ animation-delay:.3s; }
@keyframes dotPulse{
  0%,100%{ opacity:0.25; transform:scale(0.85); }
  50%{ opacity:1; transform:scale(1); }
}

@media (min-width:640px){
  .compare{ flex-direction:row; }
  .compare-block{ flex:1; }
  .results-actions{ flex-direction:row-reverse; }
}