:root{font-family:system-ui,-apple-system,"Segoe UI",sans-serif;color:#152334;background:#f3f6fa}
*{box-sizing:border-box}body{margin:0}header{background:#11243b;color:#fff;padding:18px 28px;display:flex;justify-content:space-between;align-items:center}header a{color:#fff}
main{max-width:1120px;margin:32px auto;padding:0 18px}
.card{background:white;border:1px solid #e2e8f0;border-radius:14px;padding:24px;box-shadow:0 3px 14px #11243b08}
.center{max-width:440px;margin:70px auto}
label{display:block;margin:15px 0 5px;font-weight:600;font-size:14px}
input,select,textarea{width:100%;font:inherit;padding:11px;border:1px solid #cbd5e1;border-radius:8px}
button,.button{background:#16734a;color:white;border:0;padding:11px 16px;border-radius:8px;font-weight:600;cursor:pointer;text-decoration:none;display:inline-block;margin-top:14px}
.error{background:#fff0f0;color:#9a1d1d;padding:12px;border-radius:8px}.notice{background:#ecfdf5;padding:12px;border-radius:8px}
.columns{display:grid;grid-template-columns: 1fr 1fr;gap:20px}@media(max-width:750px){.columns{grid-template-columns:1fr}}
table{border-collapse:collapse;width:100%}th,td{text-align:left;border-bottom:1px solid #e5e7eb;padding:11px}small,.muted{color:#667085}
a{color:#16734a}
nav{display:flex;gap:18px;margin:8px 0 22px;flex-wrap:wrap}nav a{font-weight:600;text-decoration:none}.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px;margin:18px 0}.tablewrap{overflow-x:auto}.card{margin-bottom:10px}select{background:#fff}textarea{resize:vertical}@media(max-width:800px){.stats{grid-template-columns:repeat(2,1fr)}}

/* v0.3 */
main.wide{max-width:1600px;margin:18px auto;padding:0 20px}
.central-layout{display:grid;grid-template-columns:minmax(230px,300px) minmax(340px,1fr) minmax(235px,285px);gap:12px;min-height:70vh}
.central-sidebar,.central-thread,.central-details{background:white;border:1px solid #dce4eb;border-radius:12px;overflow:hidden;padding:16px;min-width:0}
.central-sidebar h2,.central-details h2{font-size:18px;margin:0 0 12px}.central-sidebar form{display:flex;gap:5px}.central-sidebar button.sm{margin:0;padding:9px}.conversation-list{max-height:68vh;overflow:auto;margin-top:12px}
.conversation-item{display:flex;flex-direction:column;gap:5px;padding:14px 10px;border-bottom:1px solid #eef0f3;text-decoration:none;color:#152334}.conversation-item:hover,.conversation-item.selected{background:#e9f7ef}.conversation-item small,.conversation-item span{color:#667085;font-size:12px}
.thread-head{padding:6px 0 13px;border-bottom:1px solid #e5e7eb}.thread-head h2{margin:0 0 5px}.thread-body{min-height:250px;max-height:50vh;overflow:auto;background:#f6f8f9;border-radius:8px;padding:16px;margin-top:12px}.thread-body h3{font-size:14px;color:#667085}.bubble{width:fit-content;max-width:82%;padding:10px;background:white;border-radius:12px;margin:10px 0}.bubble.saida{margin-left:auto;background:#dff5e6}.bubble small{display:block;color:#667085;margin-top:6px}
.internal-notes{margin-top:18px;border-top:1px solid #e5e7eb;padding-top:10px}.internal-notes h3{font-size:16px}.internal-notes h3 small{font-weight:normal;color:#667085}.note{padding:10px;border-bottom:1px solid #eee}.note p{white-space:normal;margin:7px 0}.central-details label{font-size:13px}.central-details select{font-size:13px}nav{display:flex;flex-wrap:wrap;gap:15px;margin-bottom:12px}.notice{margin-bottom:12px}
@media(max-width:1050px){.central-layout{grid-template-columns:minmax(220px,280px) 1fr}.central-details{grid-column:1/-1}}@media(max-width:690px){.central-layout{display:block}.central-sidebar,.central-thread,.central-details{margin-bottom:12px}.conversation-list{max-height:230px}}