/* =============================================================
   WhatsApp Switchboard — Design tokens & layout
   ============================================================= */
:root{
  --bg: #faf8f4;
  --surface: #ffffff;
  --surface-2: #f3efe8;
  --surface-3: #ebe6db;
  --ink: #1c1c1a;
  --ink-2: #5a5852;
  --ink-3: #8a8780;
  --border: #e8e3d8;
  --border-2: #d4cfc2;
  --brand: #0f4c3a;
  --brand-2: #16704f;
  --brand-soft: #d8e8e0;
  --accent: #c2410c;
  --accent-soft: #fde9d6;
  --success: #047857;
  --warning: #b45309;
  --danger: #b91c1c;
  --sender: #dcf2e4;
  --receiver: #ffffff;
  --note: #fff5cc;
  --note-border: #e8d77a;
  --shadow-sm: 0 1px 2px rgba(28,28,26,.04), 0 1px 3px rgba(28,28,26,.06);
  --shadow-md: 0 4px 12px rgba(28,28,26,.06), 0 2px 4px rgba(28,28,26,.04);
  --shadow-lg: 0 12px 40px rgba(28,28,26,.08), 0 4px 16px rgba(28,28,26,.06);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
  --transition: 180ms cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{ box-sizing:border-box; margin:0; padding:0; }
html,body{ height:100%; }
body{
  font-family:'Tajawal','IBM Plex Sans',system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:15px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow:hidden;
}
button{
  font-family:inherit; font-size:inherit; border:none; cursor:pointer;
  background:none; color:inherit;
}
input,textarea,select{
  font-family:inherit; font-size:inherit; color:inherit; outline:none;
}
.mono{ font-family:'IBM Plex Mono',ui-monospace,monospace; font-size:.92em; }

/* Scrollbar */
*::-webkit-scrollbar{ width:8px; height:8px; }
*::-webkit-scrollbar-track{ background:transparent; }
*::-webkit-scrollbar-thumb{ background:var(--border-2); border-radius:4px; }
*::-webkit-scrollbar-thumb:hover{ background:var(--ink-3); }

#app{ height:100%; display:flex; flex-direction:column; }

/* ==========================================================
   LOGIN / SETUP
   ========================================================== */
.setup-screen{
  position:fixed; inset:0; z-index:100;
  display:flex; align-items:center; justify-content:center;
  padding:20px;
  background:
    radial-gradient(circle at 80% 10%, rgba(15,76,58,.08), transparent 50%),
    radial-gradient(circle at 10% 90%, rgba(194,65,12,.06), transparent 50%),
    var(--bg);
}
.setup-card{
  width:100%; max-width:460px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-xl);
  padding:36px 32px;
  box-shadow:var(--shadow-lg);
  animation:slideUp .5s cubic-bezier(.4,0,.2,1);
}
@keyframes slideUp{
  from{ opacity:0; transform:translateY(16px); }
  to{ opacity:1; transform:translateY(0); }
}
.setup-brand{
  display:flex; align-items:center; gap:12px;
  margin-bottom:24px;
}
.setup-logo{
  width:44px; height:44px;
  background:var(--brand);
  border-radius:12px;
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-weight:800;
  letter-spacing:-.5px;
  box-shadow:0 4px 12px rgba(15,76,58,.25);
}
.setup-brand-text h1{
  font-size:20px; font-weight:800; color:var(--ink); line-height:1.2;
}
.setup-brand-text small{
  font-size:12px; color:var(--ink-3); font-weight:500;
  text-transform:uppercase; letter-spacing:.5px;
}
.setup-title{
  font-size:24px; font-weight:800;
  margin-bottom:6px; color:var(--ink); line-height:1.3;
}
.setup-subtitle{
  color:var(--ink-2); font-size:14px;
  margin-bottom:24px; line-height:1.6;
}
.field{ margin-bottom:16px; }
.field-label{
  display:block; font-size:13px; font-weight:600;
  color:var(--ink-2); margin-bottom:6px;
}
.field-hint{
  font-size:12px; color:var(--ink-3); margin-top:6px;
}
.input{
  width:100%;
  padding:12px 14px;
  background:var(--surface-2);
  border:1.5px solid transparent;
  border-radius:var(--radius-md);
  transition:var(--transition);
  font-size:14px;
}
.input:focus{
  background:var(--surface);
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(15,76,58,.08);
}
.input.input-mono{ font-family:'IBM Plex Mono',monospace; font-size:13px; }

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:12px 20px;
  border-radius:var(--radius-md);
  font-weight:600; font-size:14px;
  transition:var(--transition);
  white-space:nowrap;
}
.btn-primary{ background:var(--brand); color:#fff; }
.btn-primary:hover:not(:disabled){
  background:var(--brand-2);
  transform:translateY(-1px);
  box-shadow:0 4px 12px rgba(15,76,58,.25);
}
.btn-primary:disabled{ opacity:.55; cursor:not-allowed; }
.btn-ghost{ background:transparent; color:var(--ink-2); }
.btn-ghost:hover{ background:var(--surface-2); color:var(--ink); }
.btn-secondary{ background:var(--surface-2); color:var(--ink); border:1px solid var(--border); }
.btn-secondary:hover{ background:var(--surface-3); }
.btn-danger{ background:var(--danger); color:#fff; }
.btn-block{ width:100%; }
.btn-icon{
  width:36px; height:36px; padding:0;
  border-radius:8px;
  display:inline-flex; align-items:center; justify-content:center;
}
.btn-icon:hover{ background:var(--surface-2); }

.alert{
  padding:12px 14px; border-radius:var(--radius-md);
  font-size:13px; margin-bottom:16px;
  display:flex; gap:10px; align-items:flex-start;
}
.alert-error{ background:#fef2f2; color:var(--danger); border:1px solid #fecaca; }
.alert-success{ background:#f0fdf4; color:var(--success); border:1px solid #bbf7d0; }
.alert-info{ background:var(--brand-soft); color:var(--brand); border:1px solid #b8d4c4; }

.agent-avatar{
  width:36px; height:36px; border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-weight:700; font-size:14px;
  flex-shrink:0;
}

/* ==========================================================
   MAIN APP
   ========================================================== */
.main-app{
  display:flex; height:100%; width:100%;
  background:var(--bg);
}
.panel-conversations{
  width:340px; flex-shrink:0;
  background:var(--surface);
  border-left:1px solid var(--border);
  display:flex; flex-direction:column;
}
.panel-chat{
  flex:1; display:flex; flex-direction:column;
  min-width:0;
  background:
    radial-gradient(circle at 50% 0%, rgba(15,76,58,.02), transparent 60%),
    var(--bg);
}
.panel-context{
  width:300px; flex-shrink:0;
  background:var(--surface);
  border-right:1px solid var(--border);
  display:flex; flex-direction:column;
}

/* ====== Conversations panel ====== */
.convs-header{
  padding:16px;
  border-bottom:1px solid var(--border);
  background:var(--surface);
}
.convs-top{
  display:flex; align-items:center; justify-content:space-between;
  margin-bottom:14px;
}
.convs-brand{ display:flex; align-items:center; gap:10px; min-width:0; }
.convs-logo{
  width:34px; height:34px;
  background:var(--brand);
  border-radius:9px;
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-weight:800; font-size:14px;
  flex-shrink:0;
}
.convs-title{ font-weight:800; font-size:16px; color:var(--ink); line-height:1.2; }
.convs-subtitle{
  font-size:11px; color:var(--ink-3);
  text-transform:uppercase; letter-spacing:.5px;
  font-weight:600;
  display:flex; align-items:center; gap:5px;
}
.convs-actions{ display:flex; gap:4px; }

.agent-chip{
  display:flex; align-items:center; gap:8px;
  padding:6px 10px;
  background:var(--surface-2);
  border-radius:var(--radius-md);
  cursor:pointer;
  transition:var(--transition);
}
.agent-chip:hover{ background:var(--surface-3); }
.agent-chip .agent-avatar{ width:26px; height:26px; font-size:11px; }
.agent-chip-name{ font-size:13px; font-weight:600; }

.search-box{ position:relative; }
.search-box .icon-search{
  position:absolute; right:12px; top:50%;
  transform:translateY(-50%);
  color:var(--ink-3); pointer-events:none;
}
.search-input{
  width:100%;
  padding:10px 38px 10px 12px;
  background:var(--surface-2);
  border:1.5px solid transparent;
  border-radius:var(--radius-md);
  font-size:14px;
  transition:var(--transition);
}
.search-input:focus{ background:var(--surface); border-color:var(--brand); }

.filter-tabs{
  display:flex; gap:4px; padding:8px 12px;
  background:var(--surface);
  border-bottom:1px solid var(--border);
}
.filter-tab{
  padding:6px 12px;
  border-radius:var(--radius-sm);
  font-size:12px; font-weight:600;
  color:var(--ink-2);
  transition:var(--transition);
  display:flex; align-items:center; gap:6px;
}
.filter-tab:hover{ background:var(--surface-2); color:var(--ink); }
.filter-tab.active{ background:var(--ink); color:#fff; }
.filter-tab .count{
  background:rgba(255,255,255,.2);
  padding:1px 6px;
  border-radius:8px;
  font-size:11px;
  min-width:18px; text-align:center;
}
.filter-tab:not(.active) .count{ background:var(--surface-2); color:var(--ink-2); }

.convs-list{ flex:1; overflow-y:auto; }
.conv-item{
  padding:12px 16px;
  border-bottom:1px solid var(--border);
  cursor:pointer;
  transition:background var(--transition);
  display:flex; gap:12px;
  position:relative;
}
.conv-item:hover{ background:var(--surface-2); }
.conv-item.active{ background:var(--brand-soft); }
.conv-item.active::before{
  content:''; position:absolute;
  right:0; top:0; bottom:0; width:3px;
  background:var(--brand);
}
.conv-avatar{
  width:44px; height:44px; border-radius:50%;
  background:var(--surface-3);
  display:flex; align-items:center; justify-content:center;
  font-weight:700; color:var(--ink-2);
  flex-shrink:0; position:relative;
  font-size:14px;
}
.conv-assigned-dot{
  position:absolute; bottom:-2px; right:-2px;
  width:16px; height:16px; border-radius:50%;
  border:2px solid var(--surface);
  display:flex; align-items:center; justify-content:center;
  color:#fff; font-size:9px; font-weight:800;
}
.conv-item.active .conv-assigned-dot{ border-color:var(--brand-soft); }
.conv-body{ flex:1; min-width:0; }
.conv-row{
  display:flex; align-items:center; justify-content:space-between;
  gap:8px; margin-bottom:2px;
}
.conv-name{
  font-weight:700; font-size:14px;
  color:var(--ink);
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.conv-time{
  font-size:11px; color:var(--ink-3);
  flex-shrink:0; font-variant-numeric:tabular-nums;
}
.conv-preview{ display:flex; align-items:center; gap:6px; }
.conv-msg{
  font-size:13px; color:var(--ink-2);
  flex:1; min-width:0;
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.conv-msg.unread{ color:var(--ink); font-weight:600; }
.unread-badge{
  background:var(--accent); color:#fff;
  font-size:11px; font-weight:700;
  padding:1px 7px;
  border-radius:10px;
  flex-shrink:0;
  min-width:20px; text-align:center;
}

.empty-state{
  padding:40px 20px;
  text-align:center;
  color:var(--ink-3);
}
.empty-state-icon{ width:48px; height:48px; margin:0 auto 12px; opacity:.4; }
.empty-state h3{ font-size:15px; font-weight:700; color:var(--ink-2); margin-bottom:4px; }
.empty-state p{ font-size:13px; }

/* ====== Chat panel ====== */
.chat-empty{
  flex:1; display:flex; flex-direction:column;
  align-items:center; justify-content:center;
  padding:40px;
  text-align:center;
  color:var(--ink-3);
}
.chat-empty-illust{
  width:120px; height:120px;
  background:var(--surface-2);
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  margin-bottom:20px;
  color:var(--ink-3);
}
.chat-empty h2{ font-size:18px; font-weight:700; color:var(--ink); margin-bottom:6px; }
.chat-empty p{ font-size:14px; max-width:300px; line-height:1.6; }

.chat-header{
  padding:14px 18px;
  background:var(--surface);
  border-bottom:1px solid var(--border);
  display:flex; align-items:center; gap:12px;
  box-shadow:var(--shadow-sm);
}
.chat-header .conv-avatar{ width:38px; height:38px; }
.chat-header-info{ flex:1; min-width:0; }
.chat-header-name{ font-weight:700; font-size:15px; color:var(--ink); }
.chat-header-status{
  font-size:12px; color:var(--ink-3);
  display:flex; align-items:center; gap:4px;
  font-family:'IBM Plex Mono',monospace; direction:ltr;
}
.chat-header-actions{ display:flex; gap:4px; }

.takeover-banner{
  padding:10px 18px;
  background:var(--accent-soft);
  border-bottom:1px solid #f0d9b8;
  display:flex; align-items:center; gap:10px;
  color:var(--accent);
  font-size:13px;
}
.takeover-banner button{
  margin-right:auto;
  padding:5px 12px;
  background:var(--accent); color:#fff;
  border-radius:6px;
  font-weight:600; font-size:12px;
}

.messages-area{
  flex:1; overflow-y:auto;
  padding:18px 20px;
  display:flex; flex-direction:column;
  gap:6px;
}
.msg-day-divider{
  align-self:center;
  padding:4px 14px;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:12px;
  font-size:11px; font-weight:600;
  color:var(--ink-2);
  margin:8px 0;
}
.msg-bubble{
  max-width:70%;
  padding:8px 12px;
  border-radius:var(--radius-lg);
  position:relative;
  word-wrap:break-word;
  box-shadow:var(--shadow-sm);
}
.msg-bubble.incoming{
  align-self:flex-start;
  background:var(--receiver);
  border-bottom-right-radius:4px;
}
.msg-bubble.outgoing{
  align-self:flex-end;
  background:var(--sender);
  border-bottom-left-radius:4px;
}
.msg-bubble.note{
  align-self:center;
  max-width:80%;
  background:var(--note);
  border:1px solid var(--note-border);
  border-radius:var(--radius-md);
}
.msg-bubble.note .msg-author{
  color:var(--warning); font-size:11px; font-weight:700;
  text-transform:uppercase; letter-spacing:.5px;
  margin-bottom:2px;
  display:flex; align-items:center; gap:5px;
}
.msg-content{
  font-size:14px; line-height:1.5;
  white-space:pre-wrap; word-wrap:break-word;
}
.msg-meta{
  display:flex; align-items:center; gap:4px;
  justify-content:flex-end;
  font-size:11px; color:var(--ink-3);
  margin-top:2px;
  font-variant-numeric:tabular-nums;
}
.msg-author{
  font-size:12px; font-weight:700;
  color:var(--brand-2);
  margin-bottom:2px;
}
.msg-image{
  max-width:280px; max-height:280px;
  border-radius:8px;
  cursor:pointer;
  display:block;
}
.msg-doc{
  display:flex; align-items:center; gap:10px;
  padding:8px;
  background:rgba(0,0,0,.03);
  border-radius:8px;
  color:var(--ink);
  text-decoration:none;
  max-width:240px;
}
.msg-doc-icon{
  width:36px; height:36px;
  background:var(--brand);
  border-radius:6px;
  display:flex; align-items:center; justify-content:center;
  color:#fff; flex-shrink:0;
}
.msg-doc-info{ flex:1; min-width:0; }
.msg-doc-name{
  font-size:13px; font-weight:600;
  white-space:nowrap; overflow:hidden; text-overflow:ellipsis;
}
.msg-doc-type{ font-size:11px; color:var(--ink-3); text-transform:uppercase; }

.composer{
  padding:14px 18px;
  background:var(--surface);
  border-top:1px solid var(--border);
}
.composer-tabs{ display:flex; gap:2px; margin-bottom:10px; }
.composer-tab{
  padding:6px 14px;
  font-size:12px; font-weight:600;
  color:var(--ink-3);
  border-bottom:2px solid transparent;
  transition:var(--transition);
}
.composer-tab:hover{ color:var(--ink-2); }
.composer-tab.active{ color:var(--brand); border-bottom-color:var(--brand); }
.composer-tab.note-tab.active{ color:var(--warning); border-bottom-color:var(--warning); }

.composer-row{ display:flex; align-items:flex-end; gap:8px; }
.composer-input-wrap{
  flex:1;
  background:var(--surface-2);
  border-radius:var(--radius-lg);
  padding:6px 12px;
  transition:var(--transition);
  border:1.5px solid transparent;
}
.composer-input-wrap.note-mode{
  background:var(--note);
  border-color:var(--note-border);
}
.composer-input-wrap:focus-within{ background:var(--surface); border-color:var(--brand); }
.composer-input-wrap.note-mode:focus-within{ border-color:var(--warning); }
.composer-input{
  width:100%;
  border:none; background:transparent;
  resize:none; max-height:140px;
  padding:8px 0;
  font-size:14px; line-height:1.5;
  font-family:inherit;
}
.composer-actions{
  display:flex; align-items:center;
  justify-content:space-between;
  gap:6px;
  padding-top:4px;
}
.composer-tools{ display:flex; gap:2px; }
.tool-btn{
  width:32px; height:32px;
  border-radius:8px;
  display:flex; align-items:center; justify-content:center;
  color:var(--ink-3);
  transition:var(--transition);
}
.tool-btn:hover{ background:rgba(0,0,0,.05); color:var(--ink-2); }
.send-btn{
  width:42px; height:42px;
  border-radius:50%;
  background:var(--brand); color:#fff;
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
  transition:var(--transition);
}
.send-btn:hover:not(:disabled){
  background:var(--brand-2);
  transform:scale(1.05);
}
.send-btn:disabled{ background:var(--border-2); cursor:not-allowed; }
.send-btn.note{ background:var(--warning); }
.send-btn.note:hover:not(:disabled){ background:#92400e; }

/* ====== Context panel ====== */
.context-section{
  padding:16px 18px;
  border-bottom:1px solid var(--border);
}
.context-section:last-child{ border-bottom:none; }
.context-title{
  font-size:11px; font-weight:700;
  color:var(--ink-3);
  text-transform:uppercase;
  letter-spacing:.6px;
  margin-bottom:10px;
}
.customer-card{ text-align:center; padding:8px 0 4px; }
.customer-card .conv-avatar{
  width:64px; height:64px;
  margin:0 auto 10px;
  font-size:22px;
}
.customer-card h3{ font-size:16px; font-weight:700; margin-bottom:2px; }
.customer-card .phone{
  font-family:'IBM Plex Mono',monospace;
  font-size:12px;
  color:var(--ink-3);
  direction:ltr;
}
.assignee-row{
  display:flex; align-items:center; gap:10px;
  padding:10px;
  background:var(--surface-2);
  border-radius:var(--radius-md);
  margin-bottom:8px;
}
.assignee-info{ flex:1; min-width:0; }
.assignee-name{ font-size:13px; font-weight:600; }
.assignee-label{ font-size:11px; color:var(--ink-3); }
.transfer-list{
  display:grid; gap:4px;
  max-height:220px; overflow-y:auto;
}
.transfer-item{
  display:flex; align-items:center; gap:10px;
  padding:8px 10px;
  border-radius:var(--radius-sm);
  cursor:pointer;
  transition:var(--transition);
  width:100%; text-align:right;
}
.transfer-item:hover{ background:var(--surface-2); }
.transfer-item .agent-avatar{ width:26px; height:26px; font-size:11px; }
.transfer-item-name{ font-size:13px; font-weight:500; flex:1; }
.status-actions{ display:flex; gap:6px; }
.status-actions .btn{ flex:1; padding:8px 10px; font-size:13px; }

.note-list{
  display:grid; gap:8px;
  max-height:280px; overflow-y:auto;
}
.note-card{
  padding:10px;
  background:var(--note);
  border:1px solid var(--note-border);
  border-radius:var(--radius-sm);
  font-size:13px;
}
.note-card-meta{
  display:flex; justify-content:space-between;
  font-size:11px;
  color:var(--warning);
  font-weight:600;
  margin-bottom:4px;
}
.note-card-text{
  color:var(--ink);
  line-height:1.5;
  white-space:pre-wrap;
  word-wrap:break-word;
}

/* ====== Modal ====== */
.modal-backdrop{
  position:fixed; inset:0;
  background:rgba(28,28,26,.4);
  z-index:90;
  display:flex; align-items:center; justify-content:center;
  padding:20px;
  animation:fadeIn .2s;
}
@keyframes fadeIn{ from{opacity:0} to{opacity:1} }
.modal{
  background:var(--surface);
  border-radius:var(--radius-xl);
  max-width:480px; width:100%;
  max-height:90vh; overflow-y:auto;
  box-shadow:var(--shadow-lg);
  animation:slideUp .3s;
}
.modal-header{
  padding:20px 24px;
  border-bottom:1px solid var(--border);
  display:flex; align-items:center; justify-content:space-between;
}
.modal-title{ font-size:17px; font-weight:700; }
.modal-body{ padding:20px 24px; }
.modal-footer{
  padding:14px 20px;
  border-top:1px solid var(--border);
  display:flex; justify-content:flex-end; gap:8px;
}

/* ====== Toast ====== */
.toast-container{
  position:fixed; bottom:20px; left:50%;
  transform:translateX(-50%);
  z-index:200;
  display:flex; flex-direction:column;
  gap:8px;
  pointer-events:none;
}
.toast{
  padding:10px 18px;
  background:var(--ink); color:#fff;
  border-radius:var(--radius-md);
  font-size:13px;
  box-shadow:var(--shadow-lg);
  animation:toastIn .3s, toastOut .3s 2.7s forwards;
}
.toast.success{ background:var(--success); }
.toast.error{ background:var(--danger); }
@keyframes toastIn{
  from{ opacity:0; transform:translateY(20px); }
  to{ opacity:1; transform:translateY(0); }
}
@keyframes toastOut{ to{ opacity:0; transform:translateY(20px); } }

/* ====== Status dot ====== */
.status-dot{
  width:8px; height:8px; border-radius:50%;
  background:var(--success);
  display:inline-block;
  box-shadow:0 0 0 2px rgba(4,120,87,.2);
}
.status-dot.offline{ background:var(--border-2); box-shadow:none; }

.spinner{
  width:16px; height:16px;
  border:2px solid currentColor;
  border-top-color:transparent;
  border-radius:50%;
  animation:spin .6s linear infinite;
  display:inline-block;
}
@keyframes spin{ to{ transform:rotate(360deg); } }

/* ====== Mobile responsive ====== */
.mobile-back{ display:none; }

@media(max-width:1024px){
  .panel-context{ display:none; }
  .panel-context.mobile-open{
    display:flex;
    position:fixed;
    top:0; right:0; bottom:0;
    width:300px; max-width:90vw;
    z-index:60;
    box-shadow:var(--shadow-lg);
    animation:slideInRight .3s;
  }
  @keyframes slideInRight{
    from{ transform:translateX(100%); }
    to{ transform:translateX(0); }
  }
}

@media(max-width:768px){
  .panel-conversations{ width:100%; }
  .panel-chat{
    position:fixed;
    top:0; left:0; right:0; bottom:0;
    z-index:30;
    transform:translateX(100%);
    transition:transform .3s;
  }
  .panel-chat.mobile-open{ transform:translateX(0); }
  .mobile-back{
    display:flex !important;
    align-items:center; justify-content:center;
    margin-left:8px;
  }
  .panel-context.mobile-open{ z-index:65; }
  .msg-bubble{ max-width:85%; }
}

[hidden]{ display:none !important; }