:root { --wc: #0f6e56; --wc-dark: #0b5141; }
body { background: #f4f6f5; font-size: .925rem; }
.bg-wc { background: var(--wc); }
.btn-wc { background: var(--wc); color: #fff; }
.btn-wc:hover { background: var(--wc-dark); color: #fff; }
.auth-body { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: linear-gradient(135deg, #e7f3ef, #f7faf9); }
.auth-wrap { width: 100%; max-width: 440px; padding: 1.5rem; }
.brand-lg { font-size: 1.9rem; font-weight: 700; color: var(--wc); }
.wc-shell { display: flex; min-height: calc(100vh - 56px); }
.wc-side { width: 240px; background: #fff; border-right: 1px solid #e3e7e5; padding: .75rem 0; flex-shrink: 0; }
.wc-side .nav-link { color: #344; padding: .5rem 1.1rem; border-left: 3px solid transparent; }
.wc-side .nav-link i { width: 1.4rem; display: inline-block; }
.wc-side .nav-link:hover { background: #f1f6f4; }
.wc-side .nav-link.active { background: #e7f3ef; color: var(--wc); border-left-color: var(--wc); font-weight: 600; }
.wc-main { flex: 1; padding: 1.5rem; min-width: 0; }
.card { border: 1px solid #e3e7e5; box-shadow: 0 1px 2px rgba(0,0,0,.03); }
.stat .num { font-size: 1.6rem; font-weight: 700; }
.stat .lbl { color: #6c757d; font-size: .8rem; text-transform: uppercase; letter-spacing: .03em; }
.table td, .table th { vertical-align: middle; }
.chat-list { max-height: 72vh; overflow-y: auto; }
.chat-list .list-group-item.active { background: #e7f3ef; color: #123; border-color: #cfe5dd; }
.chat-box { height: 58vh; overflow-y: auto; background: #efeae2; padding: 1rem; border-radius: .375rem; }
.bubble { max-width: 75%; padding: .45rem .7rem; border-radius: .6rem; margin-bottom: .45rem; white-space: pre-wrap; word-wrap: break-word; box-shadow: 0 1px 1px rgba(0,0,0,.08); }
.bubble.in { background: #fff; }
.bubble.out { background: #d9fdd3; margin-left: auto; }
.bubble .meta { font-size: .7rem; color: #667; text-align: right; margin-top: .15rem; }
.secret-box { font-family: monospace; background: #fff8e1; padding: .5rem .75rem; border: 1px dashed #e0a800; word-break: break-all; }
code.copy { cursor: pointer; }
@media (max-width: 991px) {
  .wc-side { position: fixed; top: 56px; bottom: 0; left: -260px; z-index: 1030; transition: left .2s; overflow-y: auto; }
  body.nav-open .wc-side { left: 0; box-shadow: 0 0 20px rgba(0,0,0,.2); }
  .wc-main { padding: 1rem; }
}