/* Startup / login gate + account menu. Builds on site.css tokens and Template 3's frame language. */

/* While gated, the app is hidden entirely (also removes it from tab order) so nothing flashes before auth resolves. */
body.gated > .hud, body.gated > main{visibility:hidden;}

.gate{position:fixed; inset:0; z-index:100; display:grid; place-items:center; padding:20px; overflow-y:auto;
  background-color:var(--bg);
  background-image:radial-gradient(ellipse at 20% 10%,rgba(139,92,246,.22),transparent 50%),radial-gradient(ellipse at 85% 90%,rgba(34,211,238,.12),transparent 50%),
    linear-gradient(rgba(139,92,246,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(139,92,246,.05) 1px,transparent 1px);
  background-size:auto, auto, 32px 32px, 32px 32px;
  transition:opacity .35s ease, transform .35s ease;}
.gate.leaving{opacity:0; transform:scale(1.02); pointer-events:none;}

.gate-boot{display:flex; flex-direction:column; align-items:center; gap:16px; text-align:center; color:var(--muted); font-size:14px;}
.gate-boot .mark{width:64px; height:64px; border-radius:18px; animation:gate-pulse 1.6s ease-in-out infinite;}
.gate-boot .mark .i{width:34px; height:34px;}
.gate-boot b{color:var(--text); font-size:16px;}
.gate-boot.failed .mark{animation:none; filter:grayscale(.7);}
.gate-boot.failed .spin{display:none;}
@keyframes gate-pulse{50%{box-shadow:0 0 40px rgba(139,92,246,.7); transform:scale(1.05);}}
.spin{width:22px; height:22px; border-radius:50%; border:2.5px solid var(--line2); border-top-color:var(--accent); animation:gate-spin .8s linear infinite;}
@keyframes gate-spin{to{transform:rotate(360deg);}}

.gate-card{width:min(400px,100%); background:rgba(18,21,36,.92); border:1px solid var(--line); border-radius:18px; padding:26px 26px 24px; position:relative;
  box-shadow:0 30px 80px rgba(0,0,0,.5), 0 0 0 1px rgba(139,92,246,.08); backdrop-filter:blur(10px); animation:gate-rise .4s cubic-bezier(.2,.9,.3,1.2);}
.gate-card::before{content:""; position:absolute; top:-1px; left:22px; width:56px; height:2px; background:var(--accent); border-radius:2px; box-shadow:0 0 10px var(--accent);}
@keyframes gate-rise{from{opacity:0; transform:translateY(12px) scale(.98);}}
.gate-card .logo{margin-bottom:20px;}
.gate-card h1{font-size:26px; letter-spacing:-.03em;}
.gate-card .note{margin:4px 0 18px;}
.gate-modes{display:grid; grid-template-columns:1fr 1fr; gap:4px; padding:4px; background:var(--card); border:1px solid var(--line); border-radius:11px; margin-bottom:16px;}
.gate-modes button{background:none; border:0; color:var(--muted); padding:8px; border-radius:8px; font-size:13.5px; font-weight:600; cursor:pointer; transition:background .15s, color .15s;}
.gate-modes button:hover{color:var(--text);}
.gate-modes button.on{background:var(--primary); color:#fff; box-shadow:0 0 18px rgba(139,92,246,.4);}
.fld{display:block; margin-bottom:12px; position:relative;}
.fld[hidden], .fld small[hidden]{display:none;}
.fld span{display:block; font-family:var(--mono); font-size:10.5px; letter-spacing:1.1px; text-transform:uppercase; color:var(--muted); margin-bottom:5px;}
.fld input{width:100%; background:var(--card); border:1px solid var(--line); color:var(--text); padding:11px 13px; border-radius:9px; font:inherit; font-size:14.5px; transition:border-color .15s, box-shadow .15s;}
.fld input:focus{outline:none; border-color:var(--primary); box-shadow:0 0 0 3px rgba(139,92,246,.2);}
.fld .peek{position:absolute; right:8px; top:30px; background:none; border:0; color:var(--muted); font-size:12px; font-weight:600; padding:4px 6px; cursor:pointer;}
.fld .peek:hover{color:var(--accent);}
.fld small{display:block; color:var(--muted); font-size:11.5px; margin-top:5px;}
.auth-msg{font-size:13px; line-height:1.5; border-radius:9px; margin:4px 0 12px;}
.auth-msg.err{color:#FDA4AF; background:rgba(244,63,94,.1); border:1px solid rgba(244,63,94,.3); padding:9px 12px;}
.auth-msg.ok{color:#86EFAC; background:rgba(34,197,94,.08); border:1px solid rgba(34,197,94,.3); padding:9px 12px;}
.auth-submit{width:100%; padding:12px; font-size:14.5px; position:relative;}
.auth-submit:disabled{cursor:default; opacity:.85;}
.auth-submit.loading{color:transparent;}
.auth-submit.loading::after{content:""; position:absolute; left:50%; top:50%; width:18px; height:18px; margin:-9px 0 0 -9px; border-radius:50%; border:2.5px solid rgba(255,255,255,.35); border-top-color:#fff; animation:gate-spin .7s linear infinite;}
.gate-foot{margin-top:14px; text-align:center; font-size:11.5px; color:var(--muted);}

/* account button + menu in the HUD */
.user{position:relative; flex:none;}
.userbtn{position:relative; width:36px; height:36px; border-radius:50%; border:1px solid var(--line2); cursor:pointer; padding:0;
  background:linear-gradient(135deg,var(--primary),var(--accent)); color:#fff; font-weight:700; font-size:15px; transition:box-shadow .15s;}
.userbtn:hover, .userbtn[aria-expanded="true"]{box-shadow:0 0 0 3px rgba(139,92,246,.35);}
.sync{position:absolute; right:-1px; bottom:-1px; width:11px; height:11px; border-radius:50%; border:2px solid var(--bg2); background:#22C55E;}
.sync.saving{background:var(--a); animation:gate-pulse-dot 1s ease-in-out infinite;}
.sync.error{background:var(--s);}
@keyframes gate-pulse-dot{50%{opacity:.4;}}
.usermenu{position:absolute; right:0; top:calc(100% + 10px); width:240px; background:var(--bg2); border:1px solid var(--line2); border-radius:12px; padding:14px; z-index:60;
  box-shadow:0 20px 50px rgba(0,0,0,.5); animation:gate-rise .18s ease;}
.um-name{font-weight:700; font-size:15px;}
.um-email{color:var(--muted); font-size:12.5px; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}
.um-sync{font-family:var(--mono); font-size:11px; color:var(--muted); margin:10px 0 12px; padding-top:10px; border-top:1px solid var(--line);}
.usermenu .cm-btn{width:100%;}

.toast{position:fixed; left:50%; top:74px; transform:translate(-50%,-12px); opacity:0; z-index:90; pointer-events:none;
  background:var(--bg2); border:1px solid var(--line2); color:var(--text); font-size:13.5px; font-weight:600; padding:10px 16px; border-radius:999px;
  box-shadow:0 10px 30px rgba(0,0,0,.4), 0 0 20px rgba(139,92,246,.25); transition:opacity .25s, transform .25s;}
.toast.show{opacity:1; transform:translate(-50%,0);}

@media (max-width:820px){ .usermenu{position:fixed; right:10px; top:62px;} .gate-card{padding:22px 18px 20px;} }

/* guest mode */
.gate-or{display:flex; align-items:center; gap:12px; margin:14px 0 12px; color:var(--muted); font-family:var(--mono); font-size:10.5px; letter-spacing:1.2px; text-transform:uppercase;}
.gate-or::before, .gate-or::after{content:""; flex:1; height:1px; background:var(--line);}
.auth-guest{width:100%; padding:11px; font-size:14px;}
.auth-guest:hover:not(:disabled){border-color:var(--accent); box-shadow:0 0 16px rgba(34,211,238,.25);}
.gate-boot .cm-btn{min-width:190px;}
.userbtn.guest{background:linear-gradient(135deg,#3A3F66,#23274A); color:var(--muted);}