/* Telegram Web login clone — светлая тема, акцент #3390ec / #37BBFE */

:root{
  --bg:#ffffff;
  --fg:#000000;
  --sub:#707579;
  --accent:#3390ec;
  --accent2:#37BBFE;
  --err:#e53935;
  --ok:#4FAE4F;
  --border:#e6e9ed;
}
@media (prefers-color-scheme: dark){
  :root{
    --bg:#212121;
    --fg:#f5f5f5;
    --sub:#8a8a8a;
    --border:#2b2b2b;
  }
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--fg);
  font:15px/1.45 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Ubuntu,sans-serif;
  -webkit-font-smoothing:antialiased;
}
.bg-gradient{
  position:fixed;inset:0;
  background:linear-gradient(180deg,rgba(55,187,254,.10),rgba(51,144,236,.02) 40%,transparent);
  pointer-events:none;
}
.wrap{
  min-height:100%;
  display:flex;align-items:center;justify-content:center;
  padding:24px;
}
.card{
  width:100%;max-width:420px;
  text-align:center;
  padding:32px 28px 24px;
  border-radius:14px;
  background:var(--bg);
  box-shadow:0 1px 2px rgba(16,35,47,.06),0 8px 30px rgba(16,35,47,.06);
  animation:fade .25s ease-out;
}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.hidden{display:none !important}

.logo{display:flex;justify-content:center;margin-bottom:14px}
h1{font-size:20px;font-weight:500;margin:0 0 6px}
.sub{color:var(--sub);font-size:14px;margin:0 0 22px}

.field{display:flex;gap:8px;margin-bottom:14px}
.cc-box{
  display:flex;align-items:center;gap:4px;
  border:1px solid var(--border);border-radius:6px;
  padding:0 8px;height:44px;background:transparent;
}
.cc-box .flag{font-size:17px;line-height:1}
.cc-box select{
  border:0;background:transparent;color:var(--fg);
  font-size:15px;outline:none;cursor:pointer;
  -webkit-appearance:none;appearance:none;padding-right:2px;
}
.cc-box select option{background:var(--bg);color:var(--fg)}

input[type=tel],input[type=password]{
  flex:1;min-width:0;
  height:44px;padding:0 12px;
  border:1px solid var(--border);border-radius:6px;
  background:transparent;color:var(--fg);
  font-size:15px;outline:none;
}
input[type=tel]:focus,input[type=password]:focus{border-color:var(--accent)}

.code-row{display:flex;gap:8px;justify-content:center;margin:6px 0 20px}
.code-in{
  width:46px;height:54px;text-align:center;
  font-size:22px;font-weight:500;
  border:1px solid var(--border);border-radius:6px;
  background:transparent;color:var(--fg);outline:none;
}
.code-in:focus{border-color:var(--accent)}

.btn{
  width:100%;height:46px;
  border:0;border-radius:6px;
  background:var(--accent);color:#fff;
  font-size:15px;font-weight:500;cursor:pointer;
  transition:background .15s,opacity .15s;
}
.btn:hover{background:#2b82d9}
.btn:active{opacity:.85}
.btn[disabled]{opacity:.6;cursor:default}

.err{color:var(--err);font-size:13px;min-height:18px;margin-top:10px}
.hint{color:var(--sub);font-size:13px;margin-top:14px}
.hint a{color:var(--accent);text-decoration:none}
.foot{color:var(--sub);font-size:12px;margin:20px 0 0}

.spinner{
  width:28px;height:28px;margin:10px auto 0;
  border:3px solid var(--border);border-top-color:var(--accent);
  border-radius:50%;animation:spin .8s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}
.ok{margin:10px auto 0}

@media (max-width:420px){
  .card{padding:26px 18px 20px;box-shadow:none}
  .code-in{width:42px;height:50px;font-size:20px}
}