:root{
  --green:#79b900;
  --green-dark:#315900;
  --text:#111827;
  --muted:#5b6472;
  --card:#ffffff;
  --border:rgba(17,24,39,.12);
  --shadow:0 24px 70px rgba(0,0,0,.16);
}

*{
  box-sizing:border-box;
}

html,body{
  min-height:100%;
}

body{
  margin:0;
  font-family:Arial, Helvetica, sans-serif;
  color:var(--text);
  background:
    radial-gradient(900px 480px at 20% 10%, rgba(121,185,0,.18), transparent 60%),
    radial-gradient(700px 420px at 90% 15%, rgba(49,89,0,.16), transparent 55%),
    linear-gradient(180deg,#f8fafc,#edf2e7);
}

.offline-page{
  min-height:100vh;
  display:grid;
  place-items:center;
  padding:32px 18px;
}

.offline-card{
  width:min(920px,100%);
  background:rgba(255,255,255,.94);
  border:1px solid var(--border);
  border-radius:28px;
  box-shadow:var(--shadow);
  padding:clamp(28px,5vw,56px);
  text-align:center;
}

.logo{
  width:min(420px,92%);
  height:auto;
  display:block;
  margin:0 auto 28px;
}

.status-badge{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:10px 14px;
  border-radius:999px;
  background:rgba(121,185,0,.12);
  border:1px solid rgba(121,185,0,.28);
  color:var(--green-dark);
  font-weight:800;
  font-size:14px;
  margin-bottom:18px;
}

.status-badge span{
  width:10px;
  height:10px;
  border-radius:50%;
  background:var(--green);
  box-shadow:0 0 0 6px rgba(121,185,0,.14);
}

h1{
  margin:0;
  font-size:clamp(34px,5vw,58px);
  line-height:1.05;
  letter-spacing:-.04em;
}

.lead{
  max-width:760px;
  margin:20px auto 0;
  color:var(--muted);
  font-size:clamp(17px,2vw,21px);
  line-height:1.7;
  font-weight:600;
}

.notice{
  max-width:720px;
  margin:28px auto 0;
  padding:22px;
  border-radius:20px;
  background:linear-gradient(135deg,rgba(121,185,0,.13),rgba(255,255,255,.8));
  border:1px solid rgba(121,185,0,.26);
  color:#24330f;
  font-size:18px;
  line-height:1.7;
}

.notice a{
  color:var(--green-dark);
  font-weight:900;
  text-decoration:underline;
  text-underline-offset:3px;
}

.mail-button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:52px;
  margin-top:26px;
  padding:0 24px;
  border-radius:999px;
  background:linear-gradient(135deg,var(--green),#a6e22e);
  color:#102000;
  font-weight:900;
  text-decoration:none;
  box-shadow:0 14px 30px rgba(121,185,0,.28);
  transition:transform .15s ease, box-shadow .15s ease;
}

.mail-button:hover{
  transform:translateY(-1px);
  box-shadow:0 18px 36px rgba(121,185,0,.34);
}

@media (max-width:600px){
  .offline-card{
    border-radius:22px;
  }

  .notice{
    font-size:16px;
  }
}