:root{
  --bg:#05080c;--panel:#0c1219;--panel2:#111a24;--line:#1e2d3d;
  --text:#d7e6f5;--muted:#6f879e;--accent:#39ffb6;--accent2:#4cc9ff;
  --warn:#ffc857;--danger:#ff5c7a;--font:"Space Grotesk",system-ui,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;
}
*{box-sizing:border-box}html,body{height:100%;margin:0}
body{font-family:var(--font);color:var(--text);background:var(--bg);overflow:hidden}
.scanlines{pointer-events:none;position:fixed;inset:0;z-index:50;opacity:.07;
  background:repeating-linear-gradient(0deg,transparent,transparent 2px,#000 3px)}
.glow{pointer-events:none;position:fixed;inset:-20%;z-index:0;
  background:radial-gradient(ellipse at 20% 10%,#39ffb622,transparent 45%),
             radial-gradient(ellipse at 90% 80%,#4cc9ff18,transparent 40%)}
.screen{display:none;position:relative;z-index:1;height:100vh}
.screen.active{display:block}
.login-shell{display:grid;grid-template-columns:1.05fr .95fr;height:100vh;gap:0}
.login-card{margin:auto;width:min(440px,92%);padding:2rem;border:1px solid var(--line);
  background:linear-gradient(160deg,#0e1620ee,#0a1018f2);border-radius:18px;
  box-shadow:0 0 0 1px #39ffb610,0 30px 80px #000a}
.logo-row{display:flex;gap:.9rem;align-items:center;margin-bottom:1rem}
.glyph{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(135deg,#39ffb6,#4cc9ff);color:#041018;font-size:1.2rem;font-weight:700;
  box-shadow:0 0 28px #39ffb655}
.glyph.sm{width:28px;height:28px;font-size:.75rem;border-radius:8px}
.brand{font-size:1.45rem;font-weight:700;letter-spacing:-.03em}
.sub{font-family:var(--mono);font-size:.78rem;color:var(--accent)}
.tag{color:var(--muted);margin:0 0 1.25rem;font-size:.92rem}
.login-form label{display:grid;gap:.35rem;margin-bottom:.85rem;font-size:.82rem;font-weight:600;color:var(--muted)}
input,textarea{width:100%;background:#070c12;border:1px solid var(--line);color:var(--text);
  border-radius:10px;padding:.7rem .85rem;font:inherit}
input:focus,textarea:focus{outline:none;border-color:#39ffb688;box-shadow:0 0 0 3px #39ffb618}
.btn{border:1px solid var(--line);background:var(--panel2);color:var(--text);border-radius:10px;
  padding:.55rem .9rem;font:inherit;font-weight:600;cursor:pointer}
.btn.primary{width:100%;margin-top:.25rem;background:linear-gradient(90deg,#1affb0,#3db8ff);color:#041018;border:none}
.btn.primary:hover{filter:brightness(1.06)}
.btn.ghost{background:transparent}.btn.danger{border-color:#ff5c7a55;color:var(--danger)}
.err{color:var(--danger);min-height:1.2rem;font-size:.85rem;margin:.5rem 0 0}
.login-foot{margin-top:1.1rem;font-family:var(--mono);font-size:.72rem;color:var(--muted);display:flex;align-items:center;gap:.45rem}
.dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.login-aside{display:flex;align-items:center;justify-content:center;border-left:1px solid var(--line);
  background:linear-gradient(180deg,#070b10,#0a121a)}
.term{width:min(460px,90%);min-height:280px;padding:1.2rem;border:1px solid var(--line);border-radius:12px;
  background:#05090e;color:var(--accent);font-family:var(--mono);font-size:.78rem;line-height:1.55;white-space:pre-wrap}
.topbar{height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 1rem;
  border-bottom:1px solid var(--line);background:#0a1017cc;backdrop-filter:blur(10px)}
.top-left{display:flex;align-items:center;gap:.55rem}
.top-right{display:flex;gap:.4rem}
.sep{color:var(--line)}.muted{color:var(--muted);font-family:var(--mono);font-size:.85rem}
.workspace{display:grid;grid-template-columns:340px 1fr;height:calc(100vh - 56px)}
.list-pane{border-right:1px solid var(--line);background:var(--panel);overflow:auto}
.pane-title{padding:.85rem 1rem;font-family:var(--mono);font-size:.75rem;letter-spacing:.08em;color:var(--muted);
  border-bottom:1px solid var(--line);display:flex;align-items:center;gap:.5rem}
.badge{background:#39ffb622;color:var(--accent);border:1px solid #39ffb644;border-radius:999px;padding:.1rem .45rem;font-size:.7rem}
.msg-list{display:flex;flex-direction:column}
.msg-item{padding:.85rem 1rem;border-bottom:1px solid var(--line);cursor:pointer}
.msg-item:hover{background:#12202c}.msg-item.active{background:#143028;border-left:3px solid var(--accent)}
.msg-item .from{font-size:.78rem;color:var(--accent2);font-family:var(--mono);margin-bottom:.2rem}
.msg-item .subj{font-weight:600;font-size:.95rem;margin-bottom:.15rem}
.msg-item .date{font-size:.72rem;color:var(--muted);font-family:var(--mono)}
.read-pane{overflow:auto;padding:1.4rem 1.6rem;background:linear-gradient(180deg,#080d13,#0a1118)}
.empty{height:100%;display:grid;place-items:center;color:var(--muted);font-family:var(--mono)}
#readView h2{margin:0 0 .5rem;font-size:1.35rem;letter-spacing:-.02em}
#readView .meta{color:var(--muted);font-family:var(--mono);font-size:.8rem;margin-bottom:1rem;padding-bottom:.8rem;border-bottom:1px solid var(--line)}
#readView .body{white-space:pre-wrap;font-family:var(--font);font-size:.98rem;line-height:1.55;margin:0;color:var(--text)}
.hidden{display:none!important}
.compose{position:fixed;right:1rem;bottom:1rem;width:min(440px,94vw);z-index:20;
  border:1px solid #39ffb644;border-radius:16px;background:#0c141ce8;backdrop-filter:blur(12px);
  box-shadow:0 20px 60px #000a,0 0 40px #39ffb618}
.compose-inner{padding:1rem}
.compose-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:.75rem}
.compose label{display:grid;gap:.3rem;margin-bottom:.65rem;font-size:.8rem;color:var(--muted);font-weight:600}
@media(max-width:900px){
  .login-shell{grid-template-columns:1fr}.login-aside{display:none}
  .workspace{grid-template-columns:1fr}
  .list-pane{max-height:40vh}
}