/* =====================================================
   CRM WhatsApp — sistema visual
   Paleta: fondo neutro roto, acento verde-azulado profundo
   Tipografia: Inter, una sola familia con escala de peso
   ===================================================== */

:root {
  --bg: #F7F8F7;
  --surface: #FFFFFF;
  --ink: #16211D;
  --ink-soft: #5C6B64;
  --border: #E3E7E4;
  --accent: #1F6F5C;
  --accent-ink: #0E4B3C;
  --accent-soft: #E7F1EE;
  --danger: #C1443C;
  --danger-soft: #FBEAE8;
  --warn: #B8860B;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(22, 33, 29, 0.06);
  --sidebar-w: 232px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 14.5px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }
p { margin: 0; }

/* ---------- Layout general ---------- */

.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-w);
  flex-shrink: 0;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  padding: 22px 16px;
  position: fixed;
  top: 0; bottom: 0; left: 0;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 8px 24px 8px;
}

.sidebar-brand .mark {
  width: 30px; height: 30px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: 14px;
}

.sidebar-brand .name {
  font-weight: 600;
  font-size: 15px;
}

.nav-group { margin-bottom: 18px; }

.nav-group-label {
  font-size: 11.5px;
  color: var(--ink-soft);
  padding: 0 8px 6px 8px;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 2px;
}

.nav-link svg { width: 17px; height: 17px; flex-shrink: 0; }

.nav-link:hover { background: var(--bg); color: var(--ink); }

.nav-link.active {
  background: var(--accent-soft);
  color: var(--accent-ink);
}

.sidebar-footer {
  margin-top: auto;
  padding: 10px 8px 0 8px;
  border-top: 1px solid var(--border);
}

.sidebar-user {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 13px;
  color: var(--ink-soft);
  padding-top: 12px;
}

.sidebar-user a { color: var(--danger); font-weight: 500; }

.main {
  margin-left: var(--sidebar-w);
  flex: 1;
  padding: 28px 36px 60px 36px;
  max-width: 1240px;
}

.page-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 22px;
  flex-wrap: wrap;
  gap: 12px;
}

.page-header h1 { font-size: 21px; }
.page-header .subtitle { color: var(--ink-soft); font-size: 13.5px; margin-top: 4px; }

/* ---------- Botones ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 16px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink);
  font-size: 13.5px;
  font-weight: 500;
  cursor: pointer;
  transition: border-color .12s ease, background .12s ease;
}

.btn:hover { border-color: #C9D1CC; }

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-ink); border-color: var(--accent-ink); }

.btn-danger { color: var(--danger); }
.btn-danger:hover { border-color: var(--danger); background: var(--danger-soft); }

.btn-sm { padding: 6px 11px; font-size: 12.5px; }

/* ---------- Ledger de metricas (dashboard) ---------- */

.metric-ledger {
  display: flex;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 26px;
  overflow: hidden;
}

.metric {
  flex: 1;
  padding: 18px 22px;
  border-right: 1px solid var(--border);
}
.metric:last-child { border-right: none; }

.metric .value {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.metric .label {
  color: var(--ink-soft);
  font-size: 12.5px;
  margin-top: 4px;
}

/* ---------- Tarjetas / paneles ---------- */

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 22px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.panel-header h2 { font-size: 15.5px; }

/* ---------- Filtros ---------- */

.filter-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.filter-bar select, .filter-bar input {
  padding: 8px 10px;
  border-radius: 7px;
  border: 1px solid var(--border);
  font-size: 13.5px;
  background: var(--surface);
  color: var(--ink);
}

/* ---------- Tablas ---------- */

table.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th {
  text-align: left;
  font-size: 12px;
  color: var(--ink-soft);
  font-weight: 600;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}

.data-table td {
  padding: 12px 10px;
  border-bottom: 1px solid var(--border);
  font-size: 13.5px;
  vertical-align: middle;
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tr:hover { background: var(--bg); }

/* ---------- Badges de estado ---------- */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: 20px;
  font-size: 12px;
  font-weight: 500;
}

.badge-open { background: var(--accent-soft); color: var(--accent-ink); }
.badge-closed { background: #EEF0EF; color: var(--ink-soft); }
.badge-failed { background: var(--danger-soft); color: var(--danger); }
.badge-read { color: var(--accent); }
.badge-sent { color: var(--ink-soft); }

/* ---------- Formularios ---------- */

.form-group { margin-bottom: 16px; }

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 6px;
}

.form-group .hint {
  font-size: 12px;
  color: var(--ink-soft);
  margin-top: 5px;
}

.form-control {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 13.5px;
  font-family: inherit;
  background: var(--surface);
  color: var(--ink);
}

.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

textarea.form-control { resize: vertical; min-height: 90px; }

/* ---------- Alertas / flash ---------- */

.alert {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 13.5px;
  margin-bottom: 18px;
}
.alert-success { background: var(--accent-soft); color: var(--accent-ink); }
.alert-error { background: var(--danger-soft); color: var(--danger); }

/* ---------- Estado vacio ---------- */

.empty-state {
  text-align: center;
  padding: 50px 20px;
  color: var(--ink-soft);
}
.empty-state h3 { color: var(--ink); margin-bottom: 6px; font-size: 15px; }

/* ---------- Chat / hilo de conversacion ---------- */

.chat-thread {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 6px 2px;
  max-height: 520px;
  overflow-y: auto;
}

.bubble {
  max-width: 62%;
  padding: 9px 13px;
  border-radius: 12px;
  font-size: 13.5px;
  line-height: 1.45;
}

.bubble.in {
  background: var(--bg);
  border: 1px solid var(--border);
  align-self: flex-start;
  border-bottom-left-radius: 3px;
}

.bubble.out {
  background: var(--accent-soft);
  color: var(--accent-ink);
  align-self: flex-end;
  border-bottom-right-radius: 3px;
}

.bubble .meta {
  display: block;
  font-size: 10.5px;
  color: var(--ink-soft);
  margin-top: 4px;
}

/* ---------- Login ---------- */

.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
}

.login-card {
  width: 100%;
  max-width: 360px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
}

.login-card .mark {
  width: 36px; height: 36px;
  border-radius: 9px;
  background: var(--accent);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  margin-bottom: 18px;
}

@media (max-width: 860px) {
  .sidebar { display: none; }
  .main { margin-left: 0; padding: 20px; }
  .metric-ledger { flex-wrap: wrap; }
  .metric { flex: 1 1 50%; border-bottom: 1px solid var(--border); }
}