/* ============================================
   hont · 登录/注册 精致版
   ============================================ */
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:var(--font);background:var(--bg);color:var(--txt);
  overflow:hidden;transition:background .35s,color .35s;
}
.hidden{display:none!important}

/* ---------- 认证整页（带光晕背景） ---------- */
.authpage{
  position:fixed;inset:0;z-index:100;
  display:flex;align-items:center;justify-content:center;padding:24px;
  background:var(--bg);overflow:hidden;
}
.authpage::before,.authpage::after{
  content:"";position:absolute;border-radius:50%;filter:blur(90px);opacity:.5;
  animation:float 18s ease-in-out infinite;
}
.authpage::before{
  width:460px;height:460px;background:var(--accent);top:-140px;left:-90px;
}
.authpage::after{
  width:400px;height:400px;background:var(--accent2);bottom:-150px;right:-90px;
  animation-delay:-7s;
}
[data-theme="neon"] .authpage::before{background:#ff2e97}
[data-theme="neon"] .authpage::after{background:#a855f7}
@keyframes float{
  0%,100%{transform:translate(0,0) scale(1)}
  50%{transform:translate(30px,-24px) scale(1.08)}
}

/* 右上角主题小色块 */
.corner-theme{position:absolute;top:20px;right:20px;display:flex;gap:9px;z-index:110}
.ct-btn{
  width:22px;height:22px;border-radius:7px;border:2px solid transparent;
  cursor:pointer;padding:0;transition:.2s;opacity:.8;
}
.ct-btn:hover{transform:scale(1.15);opacity:1}
.ct-btn.on{border-color:var(--txt);opacity:1;box-shadow:0 0 0 2px var(--accent)}

/* ---------- 卡片 ---------- */
.authcard{
  position:relative;z-index:2;width:100%;max-width:390px;padding:38px 34px 30px;
  border-radius:24px;background:var(--bg-elev);border:1px solid var(--border);
  box-shadow:0 24px 70px rgba(0,0,0,.4);
  animation:cardIn .5s cubic-bezier(.2,.75,.3,1) both;
}
[data-theme="neon"] .authcard{
  background:rgba(255,255,255,.055);backdrop-filter:blur(20px);
  border-color:rgba(168,85,247,.32);
  box-shadow:0 24px 70px rgba(0,0,0,.55),0 0 60px rgba(168,85,247,.16);
}
@keyframes cardIn{
  from{opacity:0;transform:translateY(26px) scale(.97)}
  to{opacity:1;transform:none}
}
.authcard .brand-mark{
  font-size:32px;font-weight:900;text-align:center;letter-spacing:-1px;
  background:var(--logo-grad);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;margin-bottom:4px;
}
.authcard .welcome{
  text-align:center;font-size:19px;font-weight:800;margin-bottom:5px;color:var(--txt);
}
.authcard .sub{text-align:center;color:var(--dim);font-size:13px;margin-bottom:26px}

/* Tab 切换 登录/注册 */
.auth-tabs{
  display:flex;background:var(--bg-input);border-radius:13px;padding:4px;margin-bottom:24px;
}
.auth-tabs button{
  flex:1;padding:10px;border:none;background:transparent;color:var(--dim);
  font-size:14px;font-weight:700;cursor:pointer;border-radius:10px;
  transition:.25s;font-family:inherit;
}
.auth-tabs button.on{background:var(--me-bubble);color:#fff;box-shadow:var(--glow)}

/* 输入框（带图标） */
.field{position:relative;margin-bottom:13px}
.field .fi{
  position:absolute;left:15px;top:50%;transform:translateY(-50%);
  font-size:16px;opacity:.6;pointer-events:none;
}
.field input{
  width:100%;padding:14px 16px 14px 44px;border-radius:13px;font-size:15px;
  background:var(--bg-input);color:var(--txt);border:1.5px solid transparent;
  outline:none;font-family:inherit;transition:.22s;
}
.field input::placeholder{color:var(--dim)}
.field input:focus{
  border-color:var(--accent);box-shadow:0 0 0 3px color-mix(in srgb,var(--accent) 25%,transparent);
}
.row2{display:flex;gap:9px}
.row2 .field{flex:1;margin-bottom:0}
.row2 .code-btn{
  flex-shrink:0;padding:0 16px;border:none;border-radius:13px;cursor:pointer;
  background:var(--bg-input);color:var(--accent);font-weight:700;font-size:13px;
  font-family:inherit;border:1.5px solid var(--border-strong);transition:.2s;white-space:nowrap;
}
.row2 .code-btn:hover{border-color:var(--accent)}

.btn{
  width:100%;padding:14px;border:none;border-radius:13px;font-size:15px;font-weight:800;
  cursor:pointer;color:#fff;background:var(--me-bubble);box-shadow:var(--glow);
  font-family:inherit;transition:.2s;margin-top:6px;
}
.btn:hover{transform:translateY(-1px);box-shadow:0 10px 28px rgba(255,46,151,.35)}
.btn:active{transform:scale(.985)}
.btn.ghost{
  background:transparent;border:1.5px solid var(--border-strong);box-shadow:none;
  color:var(--txt);margin-top:10px;
}
.btn.ghost:hover{border-color:var(--accent);color:var(--accent);transform:none}

.tip{text-align:center;font-size:12.5px;margin-top:12px;min-height:17px;color:var(--danger);font-weight:600}
.tip.ok{color:#22c55e}

/* 底部小字 */
.auth-foot{
  text-align:center;font-size:12px;color:var(--dim);margin-top:18px;line-height:1.7;
}
.auth-foot a{color:var(--accent);text-decoration:none}