*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --green: #25D366;
  --green-dark: #128C7E;
  --green-light: #dcf8c6;
  --bg: #f0f2f5;
  --sidebar: #111b21;
  --sidebar-hover: #1f2c33;
  --white: #fff;
  --text: #111b21;
  --text-muted: #667781;
  --border: #e9edef;
  --danger: #dc3545;
  --warning: #ffc107;
  --success: #25D366;
  --radius: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,.12), 0 1px 2px rgba(0,0,0,.08);
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
}

/* ── Layout ─────────────────────────────────────────── */
.app { display: flex; height: 100vh; }

.sidebar {
  width: 220px;
  background: var(--sidebar);
  display: flex;
  flex-direction: column;
  padding: 20px 0;
  flex-shrink: 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--green);
  font-size: 18px;
  font-weight: 700;
  padding: 0 20px 24px;
  border-bottom: 1px solid #2a3942;
}

nav {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 16px 10px;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 11px 14px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: #aebac1;
  font-size: 14px;
  cursor: pointer;
  text-align: left;
  transition: background .15s, color .15s;
}
.nav-btn:hover { background: var(--sidebar-hover); color: #fff; }
.nav-btn.active { background: var(--green-dark); color: #fff; }
.nav-btn .icon { font-size: 16px; }

.status-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 20px;
  border-top: 1px solid #2a3942;
  font-size: 12px;
  color: #aebac1;
}
.status-badge .dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #667781;
  flex-shrink: 0;
  transition: background .3s;
}
.status-badge.conectado .dot { background: var(--green); }
.status-badge.conectado #statusText { color: var(--green); }
.status-badge.aguardando .dot { background: var(--warning); animation: pulse 1.2s infinite; }
.status-badge.erro .dot { background: var(--danger); }

@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.4} }

/* ── Main ───────────────────────────────────────────── */
.main {
  flex: 1;
  overflow-y: auto;
  padding: 28px;
}

.tab { display: none; }
.tab.active { display: block; }

.card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  max-width: 760px;
}

.card h2 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 6px;
}

.hint { color: var(--text-muted); font-size: 13px; margin-bottom: 20px; }

/* ── QR Code ────────────────────────────────────────── */
.qr-container {
  display: flex;
  justify-content: center;
  margin: 24px 0;
}
.qr-placeholder {
  width: 220px; height: 220px;
  border: 2px dashed var(--border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 14px;
}
.qr-container img { border-radius: 12px; box-shadow: var(--shadow); }

.conta-info {
  display: flex;
  align-items: center;
  gap: 14px;
  background: #f8fffe;
  border: 1px solid var(--green-light);
  border-radius: 10px;
  padding: 16px;
  margin: 16px 0;
}
.conta-avatar { font-size: 32px; }
.conta-info strong { display: block; }
.conta-info small { color: var(--text-muted); font-size: 12px; }
.conta-info .btn-danger { margin-left: auto; }

.aviso {
  background: #fff8e1;
  border-left: 4px solid var(--warning);
  border-radius: 6px;
  padding: 12px 16px;
  font-size: 13px;
  color: #665200;
  margin-top: 24px;
}

/* ── Botões ─────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border: none;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: opacity .15s, transform .1s;
  white-space: nowrap;
}
.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .5; cursor: not-allowed; }

.btn-primary { background: var(--green-dark); color: #fff; }
.btn-primary:hover { background: #0e7a6e; }
.btn-success { background: var(--green); color: #fff; }
.btn-success:hover { background: #1eb558; }
.btn-danger  { background: var(--danger); color: #fff; }
.btn-danger:hover  { background: #b52d3a; }
.btn-warning { background: var(--warning); color: #333; }
.btn-warning:hover { background: #e0a800; }
.btn-ghost   { background: var(--bg); color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { background: #e2e6ea; }
.btn-sm { padding: 6px 12px; font-size: 12px; }
.btn-lg { padding: 12px 24px; font-size: 15px; }

.hidden { display: none !important; }

/* ── Importar / Manual ──────────────────────────────── */
.import-area, .manual-area { margin-bottom: 20px; }
.import-area h3, .manual-area h3 { font-size: 15px; margin-bottom: 10px; }

.upload-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--bg);
  border: 2px dashed #ccc;
  border-radius: 8px;
  cursor: pointer;
  font-size: 14px;
  transition: border-color .2s;
}
.upload-btn:hover { border-color: var(--green); }
.upload-btn input { display: none; }

.link-modelo { display: inline-block; margin-top: 10px; font-size: 13px; color: var(--green-dark); text-decoration: none; }
.link-modelo:hover { text-decoration: underline; }

.ou-divisor {
  text-align: center;
  color: var(--text-muted);
  font-size: 13px;
  margin: 16px 0;
  position: relative;
}
.ou-divisor::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0; right: 0;
  border-top: 1px solid var(--border);
}
.ou-divisor span { background: #fff; padding: 0 12px; position: relative; }

.row { display: flex; gap: 10px; flex-wrap: wrap; }
.row input { flex: 1; min-width: 140px; }

input[type="text"], input[type="number"], textarea {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 14px;
  font-family: inherit;
  width: 100%;
  transition: border-color .15s;
  outline: none;
}
input:focus, textarea:focus { border-color: var(--green-dark); }
textarea { resize: vertical; }

/* ── Tabela Contatos ────────────────────────────────── */
.contatos-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin: 20px 0 10px;
}
.contatos-header h3 { font-size: 15px; }

.tabela-contatos {
  max-height: 320px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.tabela-contatos table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.tabela-contatos th {
  background: var(--bg);
  padding: 9px 12px;
  text-align: left;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0;
}
.tabela-contatos td { padding: 8px 12px; border-bottom: 1px solid var(--border); }
.tabela-contatos tr:last-child td { border-bottom: none; }
.tabela-contatos tr:hover td { background: var(--bg); }

.btn-remover {
  background: none;
  border: none;
  color: var(--danger);
  cursor: pointer;
  font-size: 16px;
  padding: 0 4px;
  line-height: 1;
}

.vazio { color: var(--text-muted); font-size: 13px; padding: 24px; text-align: center; }

/* ── Mensagem ───────────────────────────────────────── */
.variaveis {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}
.variaveis .label { font-size: 13px; color: var(--text-muted); }

.var-chip {
  background: var(--green-light);
  color: var(--green-dark);
  border: 1px solid #a8d5b5;
  border-radius: 20px;
  padding: 3px 12px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s;
}
.var-chip:hover { background: #c8eeda; }

.char-count { text-align: right; font-size: 12px; color: var(--text-muted); margin-top: 6px; }

.preview-section { margin-top: 20px; }
.preview-section h3 { font-size: 14px; margin-bottom: 10px; color: var(--text-muted); }
.preview-box {
  background: var(--green-light);
  border-radius: 0 12px 12px 12px;
  padding: 12px 16px;
  font-size: 14px;
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 60px;
  box-shadow: var(--shadow);
  max-width: 400px;
}
.preview-vazio { color: var(--text-muted); font-style: italic; }

/* ── Envio ──────────────────────────────────────────── */
.config-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}
.config-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
}
.input-suffix { display: flex; align-items: center; gap: 8px; }
.input-suffix input { max-width: 80px; }
.input-suffix span { color: var(--text-muted); font-size: 13px; }

.resumo-envio {
  display: flex;
  gap: 24px;
  margin-bottom: 24px;
  background: var(--bg);
  border-radius: 10px;
  padding: 16px;
}
.resumo-item { display: flex; flex-direction: column; align-items: center; gap: 4px; flex: 1; }
.resumo-num { font-size: 28px; font-weight: 700; color: var(--green-dark); }

.acoes-envio { display: flex; gap: 12px; flex-wrap: wrap; }

.painel-progresso {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}
.progresso-header {
  display: flex;
  justify-content: space-between;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 10px;
}
.barra-progresso {
  height: 10px;
  background: var(--border);
  border-radius: 10px;
  overflow: hidden;
  margin-bottom: 12px;
}
.barra-fill {
  height: 100%;
  background: var(--green);
  border-radius: 10px;
  width: 0%;
  transition: width .4s ease;
}
.progresso-stats { display: flex; gap: 16px; font-size: 13px; margin-bottom: 12px; }
.stat.enviado { color: var(--green-dark); }
.stat.erro { color: var(--danger); }

.ultimo-status {
  font-size: 13px;
  color: var(--text-muted);
  background: var(--bg);
  padding: 8px 12px;
  border-radius: 6px;
}

/* ── Histórico ──────────────────────────────────────── */
.historico-acoes { display: flex; gap: 8px; margin-bottom: 16px; }

.tabela-historico {
  max-height: 480px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
}
.tabela-historico table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.tabela-historico th {
  background: var(--bg);
  padding: 9px 12px;
  text-align: left;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0;
}
.tabela-historico td { padding: 8px 12px; border-bottom: 1px solid var(--border); }
.tabela-historico tr:last-child td { border-bottom: none; }

.badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
}
.badge-ok { background: var(--green-light); color: var(--green-dark); }
.badge-erro { background: #ffe0e3; color: #c0392b; }

@media (max-width: 640px) {
  .sidebar { width: 60px; }
  .logo span, .nav-btn span:not(.icon), #statusText { display: none; }
  .nav-btn { justify-content: center; padding: 12px; }
  .config-grid { grid-template-columns: 1fr; }
}