:root{
  --bg1: #0f1724;
  --bg2: #243b55;
  --card: rgba(255,255,255,0.06);
  --accent: #60a5fa;
  --accent-2: #7c3aed;
  --muted: rgba(255,255,255,0.75);
  --glass: rgba(255,255,255,0.04);
  --radius: 14px;
  --maxWidth: 760px;
}

*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  background: linear-gradient(135deg,var(--bg1), var(--bg2));
  color: #fff;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  min-height:100vh;
  display:flex;
  justify-content:center; /* horizontally center #quote-box per tests */
  align-items:center;
  padding:24px;
}

/* Page wrapper */
.page{
  width:100%;
  max-width:var(--maxWidth);
  margin:0 auto; /* extra centering safety */
}

/* Quote card */
.quote-card{
  background: linear-gradient(180deg, rgba(255,255,255,0.03), rgba(255,255,255,0.02));
  border: 1px solid rgba(255,255,255,0.06);
  padding:22px;
  border-radius:var(--radius);
  box-shadow: 0 8px 30px rgba(2,6,23,0.6);
  backdrop-filter: blur(6px);
}

/* header */
.card-header{
  display:flex;
  justify-content:center;
  margin-bottom: 8px;
}
.app-title{
  font-size:1.15rem;
  letter-spacing:0.2px;
  margin:0;
  color:var(--muted);
}

/* Quote content */
.quote-content{
  padding:16px 8px;
  display:flex;
  flex-direction:column;
  gap:8px;
  align-items:flex-start;
  min-height:120px;
}

.quote-text{
  font-size:1.25rem;
  line-height:1.45;
  margin:0;
  color:#fff;
  font-weight:600;
  word-break:break-word;
}

.quote-author{
  margin:0;
  color:var(--muted);
  align-self:flex-end;
  font-size:0.95rem;
}

/* Footer controls */
.card-footer{
  margin-top:16px;
  display:flex;
  justify-content:space-between;
  align-items:center;
}

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

/* Buttons */
.btn{
  display:inline-flex;
  gap:10px;
  align-items:center;
  padding:10px 14px;
  border-radius:10px;
  border:none;
  cursor:pointer;
  text-decoration:none;
  color: #fff;
  font-weight:600;
  transition:transform .12s ease, box-shadow .12s ease;
  background:var(--glass);
}

.btn:active{transform:translateY(1px)}
.btn:hover{box-shadow:0 8px 20px rgba(2,6,23,0.4)}

.btn-primary{
  background: linear-gradient(90deg,var(--accent),var(--accent-2));
  color:#04203a;
  box-shadow: 0 8px 20px rgba(92, 124, 255, 0.12);
}

.btn-tweet{
  background: transparent;
  color:var(--accent);
  border:1px solid rgba(96,165,250,0.12);
  padding:8px 10px;
  font-weight:700;
  display:inline-flex;
}
.btn-tweet svg{color:var(--accent);}

/* small accessibility helper */
.sr-only{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}

/* attribution */
.attribution{
  margin-top:12px;
  text-align:center;
  color:rgba(255,255,255,0.5);
  font-size:0.85rem;
}

/* Responsive adjustments */
@media (max-width:720px){
  .quote-text{font-size:1.05rem}
  .quote-content{min-height:100px}
  .card-footer{flex-direction:column; gap:12px; align-items:stretch}
  .controls{justify-content:space-between}
}

@media (max-width:420px){
  .btn{padding:10px 12px; font-size:0.92rem}
  .quote-card{padding:16px}
}