:root {
  --ink: #172034;
  --muted: #677083;
  --line: #d9deea;
  --paper: #f7f4ee;
  --panel: #ffffff;
  --blue: #173d6d;
  --blue-2: #23598f;
  --gold: #b99755;
  --warm: #ece4d6;
  --danger: #a33b3b;
  --ok: #267057;
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--paper); }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
.hidden { display: none !important; }
.eyebrow { margin: 0 0 8px; color: var(--gold); text-transform: uppercase; letter-spacing: .08em; font-size: 12px; font-weight: 700; }

.entry-page { min-height: 100vh; background: linear-gradient(135deg, #fbfaf6 0%, #eee5d6 100%); }
.entry-shell { min-height: 100vh; display: grid; place-items: center; padding: 32px; }
.entry-hero { width: min(1120px, 100%); display: grid; grid-template-columns: 1.4fr .8fr; gap: 28px; align-items: stretch; }
.entry-hero h1 { margin: 0; font-size: clamp(42px, 7vw, 86px); line-height: .95; color: var(--blue); letter-spacing: 0; }
.lead { max-width: 650px; color: #3e485a; font-size: 20px; line-height: 1.7; }
.entry-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.primary-button, .secondary-button, button { border: 1px solid var(--blue); border-radius: 6px; padding: 11px 16px; text-decoration: none; transition: background .15s ease, transform .15s ease; }
.primary-button, button[type="submit"], #simulateBtn { background: var(--blue); color: #fff; }
.secondary-button { color: var(--blue); background: transparent; }
.danger-button { border-color: var(--danger); color: var(--danger); background: #fff; }
.danger-button:hover { background: #fff3f3; }
.primary-button:hover, button:hover { transform: translateY(-1px); }
.service-panel { background: rgba(255,255,255,.74); border: 1px solid var(--line); border-radius: 8px; padding: 28px; box-shadow: 0 24px 70px rgba(23, 61, 109, .12); }
.service-panel h2 { margin-top: 0; color: var(--blue); }
.service-panel li { margin: 14px 0; color: #39465b; }

.login-screen { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card, .settings-card { background: var(--panel); border: 1px solid var(--line); border-radius: 8px; padding: 24px; box-shadow: 0 18px 55px rgba(20, 35, 61, .08); }
.login-card { width: min(420px, 100%); }
.login-card h1, .topbar h1, .settings-card h2 { margin: 0 0 18px; color: var(--blue); }
label { display: grid; gap: 7px; margin-bottom: 14px; color: #334057; font-weight: 650; }
input, textarea, select { width: 100%; border: 1px solid var(--line); border-radius: 6px; padding: 11px 12px; background: #fff; color: var(--ink); }
textarea { resize: vertical; }
.error-text { color: var(--danger); min-height: 20px; }

.admin-app { min-height: 100vh; display: grid; grid-template-rows: auto 1fr; }
.topbar { display: flex; justify-content: space-between; gap: 20px; align-items: center; padding: 18px 24px; background: #fff; border-bottom: 1px solid var(--line); }
.topbar h1 { font-size: 24px; margin-bottom: 0; }
.tabs { display: flex; gap: 8px; flex-wrap: wrap; }
.tabs button { background: #fff; color: var(--blue); padding: 9px 12px; }
.tabs button.active { background: var(--blue); color: #fff; }
.workspace { padding: 18px; min-height: 0; }
.chat-layout { display: grid; grid-template-columns: 330px 1fr; gap: 16px; height: calc(100vh - 104px); }
.conversation-list, .chat-panel { background: #fff; border: 1px solid var(--line); border-radius: 8px; min-height: 0; overflow: hidden; }
.panel-head, .chat-header { min-height: 64px; padding: 14px; border-bottom: 1px solid var(--line); display: flex; justify-content: space-between; align-items: center; gap: 10px; }
.panel-head h2 { margin: 0; color: var(--blue); }
#conversationList { overflow: auto; height: calc(100% - 64px); }
.conversation { width: 100%; display: grid; gap: 3px; text-align: left; border: 0; border-bottom: 1px solid var(--line); border-radius: 0; background: #fff; color: var(--ink); padding: 14px; }
.conversation.active { background: #f2eee5; }
.conversation span, .conversation small, .conversation em { color: var(--muted); font-style: normal; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.conversation small { color: var(--gold); }
.chat-panel { display: grid; grid-template-rows: auto 1fr auto; }
.chat-header strong { display: block; color: var(--blue); }
.chat-header span { color: var(--muted); font-size: 13px; }
#handoverBtn { background: #fff; color: var(--blue); }
.messages { padding: 18px; overflow: auto; display: flex; flex-direction: column; gap: 12px; background: #fbfaf7; }
.message { max-width: min(680px, 84%); display: grid; gap: 6px; }
.message > div { padding: 12px 14px; border: 1px solid var(--line); border-radius: 8px; background: #fff; line-height: 1.55; white-space: pre-wrap; }
.message small { color: var(--muted); font-size: 12px; }
.message.outbound { align-self: flex-end; }
.message.outbound > div { background: var(--blue); color: #fff; border-color: var(--blue); }
.message.ai > div { background: #eef4f8; color: var(--ink); border-color: #cbdceb; }
.reply-bar { display: grid; grid-template-columns: 1fr auto; gap: 10px; padding: 14px; border-top: 1px solid var(--line); background: #fff; }
.reply-bar button { background: var(--blue); color: #fff; }
.two-column { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.full-width { grid-column: 1 / -1; }
.narrow { width: min(780px, 100%); }
.whatsapp-connect-card { width: min(1080px, 100%); }
.connect-head { display: flex; justify-content: space-between; gap: 20px; align-items: flex-start; margin-bottom: 22px; }
.connect-grid { display: grid; grid-template-columns: minmax(280px, 380px) 1fr; gap: 18px; align-items: start; }
.qr-panel, .status-panel { border: 1px solid var(--line); border-radius: 10px; padding: 18px; background: #fbfaf7; }
.qr-box { min-height: 320px; display: grid; place-items: center; text-align: center; border: 1px dashed #c8cedb; border-radius: 10px; background: #fff; padding: 18px; }
.qr-box img { width: min(260px, 100%); height: auto; display: block; }
.connect-actions { margin-top: 14px; display: flex; flex-wrap: wrap; gap: 10px; }
.connect-actions button { flex: 1 1 160px; }
.status-badge { display: inline-flex; align-items: center; justify-content: center; min-width: 92px; border-radius: 999px; padding: 8px 12px; font-weight: 800; border: 1px solid var(--line); background: #fff; }
.status-badge.ok { color: var(--ok); border-color: rgba(38, 112, 87, .28); background: #eef8f3; }
.status-badge.warn { color: #9a6b18; border-color: rgba(185, 151, 85, .35); background: #fff8e8; }
.status-badge.danger { color: var(--danger); border-color: rgba(163, 59, 59, .24); background: #fff3f3; }
.status-badge.neutral { color: var(--muted); }
.status-list { display: grid; gap: 10px; }
.status-list p { margin: 0; display: grid; grid-template-columns: 140px 1fr; gap: 12px; border-bottom: 1px solid var(--line); padding-bottom: 10px; }
.status-list p:last-child { border-bottom: 0; padding-bottom: 0; }
.status-list strong { color: var(--blue); }
.status-list span { color: #364257; overflow-wrap: anywhere; }
.status-message { color: var(--ok); font-weight: 700; }
.advanced-settings { margin-top: 20px; border-top: 1px solid var(--line); padding-top: 16px; }
.advanced-settings summary { cursor: pointer; color: var(--blue); font-weight: 800; }
.advanced-settings form { margin-top: 16px; }
.knowledge-row { border-top: 1px solid var(--line); padding: 14px 0; }
.knowledge-row strong { color: var(--blue); }
.knowledge-row span, .hint, .empty { color: var(--muted); }
.knowledge-row p { margin: 8px 0 0; line-height: 1.55; }
code { background: #f1eee7; padding: 2px 6px; border-radius: 4px; }

@media (max-width: 860px) {
  .entry-hero, .chat-layout, .two-column { grid-template-columns: 1fr; }
  .connect-head, .connect-grid { grid-template-columns: 1fr; flex-direction: column; }
  .chat-layout { height: auto; }
  .conversation-list, .chat-panel { min-height: 420px; }
  .topbar { align-items: flex-start; flex-direction: column; }
}