*{box-sizing:border-box;margin:0;padding:0}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;background:linear-gradient(135deg,#1a1a2e,#16213e);min-height:100vh;padding:20px;color:#eee}
.container{max-width:900px;margin:0 auto}
h1{color:#fff;text-align:center;margin-bottom:10px;font-size:2.5em}
.subtitle{color:#a0a0a0;text-align:center;margin-bottom:40px}

.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px;margin-bottom:40px}
.loading{grid-column:1/-1;text-align:center;color:#888;padding:40px}
.card{position:relative;background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.1);border-top:4px solid #888;border-radius:16px;padding:28px;text-decoration:none;color:inherit;transition:all .3s ease;display:flex;flex-direction:column}
.card:hover{transform:translateY(-4px);border-color:rgba(255,255,255,0.3);box-shadow:0 20px 40px rgba(0,0,0,0.3)}
.card-dot{position:absolute;top:12px;right:16px;font-size:1.4em;line-height:1;color:#666}
.card-dot.up{color:#4CAF50}
.card-dot.down{color:#f44336}
.card-dot.pending{color:#FF9800}
.card-icon{font-size:48px;margin-bottom:16px}
.card h2{color:#fff;margin-bottom:12px;font-size:1.5em}
.card p{color:#a0a0a0;line-height:1.6;flex:1;font-size:.95em}
.card-footer{margin-top:16px;padding-top:16px;border-top:1px solid rgba(255,255,255,0.1);font-size:.85em;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}
.card-session{color:#a0a0a0}
.card-session.ok{color:#4CAF50}
.card-session.empty{color:#888}

.session-manager{background:rgba(0,0,0,0.25);border:1px solid rgba(255,255,255,0.1);border-radius:16px;padding:24px;margin-bottom:20px}
.session-manager h2{color:#fff;margin-bottom:10px;font-size:1.3em}
.session-manager .muted{color:#888;margin-bottom:16px;font-size:.9em;line-height:1.5}
.session-tabs{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}
.tab{background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.15);color:#ddd;padding:8px 16px;border-radius:8px;cursor:pointer;font-size:.9em;font-family:inherit}
.tab:hover{background:rgba(255,255,255,0.1)}
.tab.active{background:#4CAF50;border-color:#4CAF50;color:#fff}
.session-editor label{display:block;color:#ccc;margin-bottom:6px;font-size:.9em}
.session-editor textarea{width:100%;background:rgba(0,0,0,0.35);border:1px solid rgba(255,255,255,0.2);border-radius:8px;color:#eee;padding:12px;font-family:monospace;font-size:.82em;margin-bottom:12px;resize:vertical}
.session-editor .actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.session-editor button{background:#4CAF50;color:#fff;border:0;border-radius:8px;padding:10px 20px;cursor:pointer;font-size:.9em;font-family:inherit}
.session-editor button:hover{background:#43A047}
#session-msg{font-size:.9em}
#session-msg.ok{color:#4CAF50}
#session-msg.err{color:#f44336}

.footer{text-align:center;margin-top:40px;color:#666;font-size:.9em}

.disclaimer{margin-top:24px;padding:14px 18px;background:rgba(255,167,38,0.07);border:1px solid rgba(255,167,38,0.25);border-radius:10px;color:#bdbdbd;font-size:.82em;line-height:1.55}
.disclaimer strong{color:#ffb74d}