:root{
  --blu:#123c7c;
  --rosso:#ef233c;
  --verde:#22c55e;
  --giallo:#ffd43b;
  --arancio:#f97316;
  --nero:#151515;
}

*{box-sizing:border-box}

body{
  margin:0;
  font-family:Arial, sans-serif;
  background:linear-gradient(135deg,#dff7ff,#fff2b8);
  color:var(--nero);
}

header{
  text-align:center;
  padding:28px 18px;
}

.back{
  display:inline-block;
  margin-bottom:18px;
  color:white;
  background:var(--blu);
  padding:12px 18px;
  border-radius:999px;
  text-decoration:none;
  font-weight:900;
  border:3px solid var(--nero);
  box-shadow:4px 4px 0 var(--nero);
}

h1{
  font-size:clamp(2.4rem,8vw,4.8rem);
  color:var(--blu);
  text-shadow:3px 3px 0 white,6px 6px 0 var(--nero);
  margin:10px 0;
}

.wrapper{
  max-width:1100px;
  margin:auto;
  padding:18px;
}

.tool-card{
  display:grid;
  grid-template-columns:260px 1fr;
  gap:24px;
  align-items:center;
  background:white;
  border:4px solid var(--nero);
  border-radius:30px;
  padding:24px;
  box-shadow:8px 8px 0 var(--nero);
}

.ticro-img{
  width:100%;
  max-width:240px;
}

.speech{
  background:#fff7d6;
  border:3px solid var(--nero);
  border-radius:22px;
  padding:16px;
  font-size:1.15rem;
  font-weight:900;
  margin-top:12px;
}

.mode-buttons{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:12px;
  margin-bottom:22px;
}

button{
  border:3px solid var(--nero);
  border-radius:18px;
  padding:13px 18px;
  font-size:1rem;
  font-weight:900;
  cursor:pointer;
  box-shadow:4px 4px 0 var(--nero);
}

.mode{
  background:var(--giallo);
}

.mode.active{
  background:var(--blu);
  color:white;
}

.timer-box{
  text-align:center;
  background:#fff7d6;
  border:4px solid var(--nero);
  border-radius:28px;
  padding:24px;
  box-shadow:6px 6px 0 var(--nero);
}

.sport-label{
  font-size:1.5rem;
  font-weight:900;
  color:var(--blu);
}

.time{
  font-size:clamp(4rem,18vw,8rem);
  font-weight:900;
  margin:15px 0;
  color:var(--rosso);
}

.phase{
  font-size:1.4rem;
  font-weight:900;
  margin-bottom:16px;
}

.controls{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:10px;
}

.start{background:var(--verde);color:white}
.pause{background:var(--giallo)}
.reset{background:var(--rosso);color:white}
.next{background:var(--blu);color:white}
.custom{background:var(--arancio);color:white}

.tools{
  margin-top:26px;
  background:white;
  border:4px solid var(--nero);
  border-radius:28px;
  padding:22px;
  box-shadow:7px 7px 0 var(--nero);
}

.quick-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(180px,1fr));
  gap:12px;
}

.quick-grid button{
  width:100%;
}

.footer{
  text-align:center;
  padding:25px;
  font-weight:900;
}

@media(max-width:820px){
  .tool-card{
    grid-template-columns:1fr;
    text-align:center;
  }

  .ticro-img{
    max-width:220px;
    margin:auto;
  }
}
.footer {
    text-align: center;
    margin-top: 40px;
    padding: 20px;
}

.footer p {
    margin: 8px 0;
}

.footer .sign a {
    color: #009688;
    text-decoration: none;
    font-weight: bold;
}

.footer .sign a:hover {
    color: #00695c;
}

.footer .sign a:hover {
    color: #27ae60;      /* verde campo da calcio */
    text-decoration: underline;
}

button,
.back {
  -webkit-user-select: none;
  user-select: none;
}