*{box-sizing:border-box}body{margin:0;font-family:-apple-system,Segoe UI,Roboto,sans-serif;background:#f0f2f5;color:#111b21}button{cursor:pointer;border:none;border-radius:6px;padding:8px 14px;background:#00a884;color:#fff;font-weight:600}button:disabled{opacity:.5;cursor:not-allowed}input,select{padding:8px 10px;border:1px solid #d1d7db;border-radius:6px;font-size:14px}label{display:flex;flex-direction:column;gap:4px;font-size:13px;color:#54656f;margin-bottom:10px}.error{color:#d32f2f;background:#fdecea;padding:8px 10px;border-radius:6px;margin-bottom:10px;font-size:13px}.notice{color:#b26a00;background:#fff4e0;padding:8px 10px;border-radius:6px;margin-bottom:10px;font-size:13px}.login-screen{height:100vh;display:flex;align-items:center;justify-content:center}.login-card{background:#fff;padding:32px;border-radius:12px;box-shadow:0 2px 12px #00000014;width:320px}.login-card h1{font-size:20px;margin-bottom:16px}.app-layout{height:100vh;display:flex;flex-direction:column}.app-nav{display:flex;align-items:center;gap:20px;padding:12px 20px;background:#00a884;color:#fff}.app-nav a{color:#fff;text-decoration:none;font-size:14px}.app-brand{font-weight:700}.app-nav-spacer{flex:1}.app-user{font-size:13px;opacity:.9}.app-nav button{background:#fff3}.app-main{flex:1;overflow:hidden}.conversations-layout{display:grid;grid-template-columns:320px 1fr;height:100%;min-height:0}.chat-list{overflow-y:auto;border-right:1px solid #e9edef;background:#fff;min-height:0}.chat-list-item{display:flex;align-items:center;gap:12px;width:100%;padding:12px 16px;background:none;border-bottom:1px solid #f0f2f5;border-radius:0;text-align:left}.chat-list-item.active{background:#f0f2f5}.chat-list-avatar{width:40px;height:40px;border-radius:50%;background:#00a884;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;flex-shrink:0}.chat-list-info{flex:1;min-width:0;color:#111b21}.chat-list-name{font-weight:600;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-list-phone{font-size:12px;color:#667781}.chat-list-badge{background:#00a884;color:#fff;border-radius:999px;font-size:11px;padding:2px 7px}.chat-list-empty{padding:24px;color:#667781;text-align:center;font-size:14px}.conversation-panel{display:flex;flex-direction:column;height:100%;min-height:0;background:#efeae2}.conversation-empty{flex:1;display:flex;align-items:center;justify-content:center;color:#667781}.message-thread{flex:1;min-height:0;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:8px}.msg-bubble{max-width:60%;padding:8px 12px;border-radius:8px;background:#fff;align-self:flex-start}.msg-bubble.out{background:#d9fdd3;align-self:flex-end}.msg-body{font-size:14px;white-space:pre-wrap;word-break:break-word}.msg-time{font-size:10px;color:#667781;text-align:right;margin-top:4px}.msg-media{max-width:260px;border-radius:6px;display:block;margin-bottom:4px}.msg-media-link{font-size:13px;color:#00a884}.composer{display:flex;gap:10px;padding:14px;background:#f0f2f5}.composer input{flex:1}.users-page{padding:24px;overflow-y:auto;height:100%}.users-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}.users-table{width:100%;border-collapse:collapse;background:#fff;border-radius:8px;overflow:hidden}.users-table th,.users-table td{text-align:left;padding:10px 14px;border-bottom:1px solid #f0f2f5;font-size:14px}.users-table td button{margin-right:8px;font-size:12px;padding:6px 10px}.modal-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:#0006;display:flex;align-items:center;justify-content:center}.modal-card{background:#fff;padding:24px;border-radius:10px;width:340px}.modal-actions{display:flex;justify-content:flex-end;gap:10px}.modal-actions button[type=button]{background:#e9edef;color:#111b21}