/* WUF UI · estilos de marca WhatsUpFunnel™
   Extraído del Panel de Cliente (panel.whatsupfunnel.io), con la capa de marca ya aplicada.
   Fuente: Poppins (cárgala en el <head>, ver login.html). Tema oscuro. */

:root {
  /* Colores */
  --bg: #1C1E21;          /* fondo de página */
  --bg-alt: #15171A;      /* barra superior, fondos hundidos */
  --card: #252729;        /* tarjetas */
  --card-alt: #292B2D;    /* campos, botones secundarios */
  --line: #2E2F31;        /* bordes */
  --text: #FCF5EB;        /* texto principal (crema) */
  --text-soft: #B0ACA6;   /* texto secundario */
  --text-faint: #7A7876;  /* pistas, placeholders */
  --green: #25D366;       /* acento WhatsApp: botones principales, enlaces */
  --green-deep: #1FAA52;  /* hover del verde */
  --green-tint: #1D392B;  /* fondo verde suave (tarjeta destacada) */
  --green-line: #1F5B39;  /* borde verde */
  --red: #FF4D4F;         /* errores y datos pendientes */

  /* Tipografía */
  --font: "Poppins", Arial, sans-serif;
  --code: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  /* Radios */
  --r-card: 14px;
  --r-hero: 16px;
  --r-btn: 10px;
  --r-ibox: 9px;
}

/* ------------------------------------------------------------------ base */

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, p { margin: 0; }
h1 { font-size: 21px; font-weight: 600; line-height: 1.25; }
h2 { font-size: 16px; font-weight: 600; line-height: 1.35; }
h3 { font-size: 15px; font-weight: 600; line-height: 1.4; }
@media (min-width: 768px) { h1 { font-size: 24px; } }

a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }

button { font: inherit; color: inherit; cursor: pointer; }
button:disabled { cursor: not-allowed; }

:focus { outline: none; }
:focus-visible { outline: 2px solid var(--green); outline-offset: 2px; border-radius: 6px; }

img { max-width: 100%; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

.soft { color: var(--text-soft); }
.faint { color: var(--text-faint); }
.small { font-size: 13px; }
.tnum { font-variant-numeric: tabular-nums; }

/* Etiqueta en mayúsculas (encabezados de sección, KPIs) */
.label {
  font-size: 11px; font-weight: 600; letter-spacing: .07em;
  text-transform: uppercase; color: var(--text-soft);
  font-variant-numeric: tabular-nums;
}

/* --------------------------------------------------------------- layout */

.topbar { position: sticky; top: 0; z-index: 20; background: var(--bg-alt); border-bottom: 1px solid var(--line); }
.topbar-inner {
  max-width: 1240px; margin: 0 auto; padding: 10px 16px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 14px; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand .wordmark { height: 20px; width: auto; display: block; }
.brand-sub {
  font-size: 11px; font-weight: 600; letter-spacing: .07em; text-transform: uppercase;
  color: var(--text-soft); padding-left: 10px; border-left: 1px solid var(--line);
}
@media (max-width: 420px) { .brand-sub { display: none; } }

.wrap { max-width: 1240px; margin: 0 auto; padding: 24px 16px 64px; }
@media (min-width: 900px) {
  .topbar-inner { padding-left: 32px; padding-right: 32px; }
  .wrap { padding-left: 32px; padding-right: 32px; }
}
.stack > * + * { margin-top: 16px; }
.stack-lg > * + * { margin-top: 14px; }
.grid-2 { display: grid; gap: 12px; grid-template-columns: minmax(0, 1fr); }
@media (min-width: 860px) { .grid-2 { grid-template-columns: minmax(0, 1.35fr) minmax(0, 1fr); align-items: start; } }

/* ---------------------------------------------------------------- cards */

.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--r-card); padding: 16px; }
@media (min-width: 768px) { .card { padding: 20px; } }
.card-featured { background: var(--green-tint); border-color: var(--green-line); border-radius: var(--r-hero); }
.card-head { display: flex; flex-direction: column; gap: 4px; margin-bottom: 14px; }

/* Tarjeta héroe (bloque principal de una pantalla) */
.hero {
  background: linear-gradient(135deg, var(--green-tint), var(--card) 70%);
  border-color: var(--green-line);
  border-radius: var(--r-hero);
}

/* Caja de icono cuadrada */
.ico {
  width: 42px; height: 42px; border-radius: 12px; display: grid; place-items: center;
  background: var(--green-tint); border: 1px solid var(--green-line); color: var(--green);
  font-size: 20px; line-height: 1; flex: none;
}
.ico-sm { width: 32px; height: 32px; border-radius: var(--r-ibox); background: var(--card-alt); border-color: var(--line); color: var(--text-faint); font-size: 16px; }

/* -------------------------------------------------------------- botones */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 10px 18px;
  border-radius: var(--r-btn); border: 1px solid var(--line);
  background: var(--card-alt); color: var(--text);
  font-weight: 600; font-size: 15px; line-height: 1.3;
  text-align: center; text-decoration: none;
  transition: background-color .15s, border-color .15s;
}
.btn:hover { text-decoration: none; border-color: var(--text-faint); }
.btn-primary { background: var(--green); border-color: var(--green); color: var(--bg-alt); }
.btn-primary:hover { background: var(--green-deep); border-color: var(--green-deep); }
.btn-primary:disabled { background: var(--card-alt); border-color: var(--line); color: var(--text-faint); }
.btn-ghost { background: transparent; border-color: transparent; color: var(--text-soft); padding-left: 8px; padding-right: 8px; }
.btn-ghost:hover { color: var(--text); border-color: transparent; }
.btn-danger { background: transparent; border-color: var(--red); color: var(--red); }
.btn-sm { min-height: 36px; padding: 6px 12px; font-size: 13px; }
.btn-block { width: 100%; }
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; }

.btn-round {
  flex: none; width: 40px; height: 40px;
  display: grid; place-items: center; line-height: 0;
  border-radius: 999px; border: 0;
  background: var(--green); color: var(--bg-alt);
}
.btn-round:hover { background: var(--green-deep); text-decoration: none; }

.icon-link {
  flex: none; width: 34px; height: 34px;
  display: grid; place-items: center; line-height: 0;
  border-radius: 999px; background: var(--green-tint); border: 1px solid var(--green-line); color: var(--green);
  transition: background-color .15s, color .15s;
}
.icon-link:hover { background: var(--green); color: var(--bg-alt); text-decoration: none; }

.linkbtn {
  border: 0; background: none; padding: 0;
  color: var(--text-soft); font-size: 13px; text-decoration: underline; text-underline-offset: 3px;
}
.linkbtn:hover { color: var(--text); }
.linkbtn:disabled { color: var(--text-faint); text-decoration: none; }

/* Pastillas */
.chip {
  display: inline-flex; align-items: center; padding: 2px 10px;
  border-radius: 999px; border: 1px solid var(--line); background: var(--card-alt);
  font-size: 11px; font-weight: 600; letter-spacing: .05em; color: var(--text-soft); white-space: nowrap;
}
.chip-green { background: var(--green-tint); border-color: var(--green-line); color: var(--green); }
.chip-red { border-color: var(--red); color: var(--red); background: transparent; }

/* Pestañas */
.tab {
  display: inline-flex; align-items: center; padding: 6px 14px; border-radius: 999px;
  border: 1px solid var(--line); background: var(--card-alt); color: var(--text-soft);
  font-weight: 500; font-size: 13.5px;
}
.tab:hover { color: var(--text); border-color: var(--green-line); }
.tab[aria-selected="true"] { background: var(--green); border-color: var(--green); color: var(--bg-alt); font-weight: 600; }

/* ------------------------------------------------------------- campos */

.field { display: flex; flex-direction: column; gap: 6px; }
.field + .field { margin-top: 14px; }
.field-label { font-weight: 600; font-size: 15px; }
.field-help { color: var(--text-soft); font-size: 13px; }
.field-error { color: var(--red); font-size: 13px; }

.input, .textarea, .select {
  width: 100%; min-height: 46px; padding: 11px 14px;
  background: var(--card-alt); color: var(--text);
  border: 1px solid var(--line); border-radius: var(--r-btn);
  font: inherit; font-size: 16px; /* 16px evita el zoom de iOS */
}
.input::placeholder, .textarea::placeholder { color: var(--text-faint); }
.input:focus, .textarea:focus, .select:focus { border-color: var(--green-line); outline: 2px solid var(--green); outline-offset: 0; }
.textarea { min-height: 110px; resize: vertical; line-height: 1.5; }
.has-error .input, .has-error .textarea { border-color: var(--red); }

.msg { font-size: 14px; margin-top: 12px; }
.msg-error { color: var(--red); }
.msg-ok { color: var(--text-soft); }

/* ---------------------------------------------------------------- login */

.login-page { min-height: 100vh; display: grid; place-items: center; padding: 24px 16px; }
.login-card { width: 100%; max-width: 420px; text-align: center; border-radius: var(--r-hero); }
.login-card .wordmark-lg { width: 220px; max-width: 80%; height: auto; margin: 4px auto 24px; display: block; }
.login-card form { margin-top: 24px; text-align: left; }
.login-links { margin-top: 16px; display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.input-otp {
  font-size: 26px; font-weight: 600; letter-spacing: .35em;
  text-align: center; padding-left: calc(14px + .35em);
  font-variant-numeric: tabular-nums;
}

/* ------------------------------------------------- avisos y carga */

.boot { min-height: 100vh; display: grid; place-items: center; opacity: .6; }
.boot img { border-radius: 10px; }

.toast {
  position: fixed; left: 50%; bottom: 20px; z-index: 60;
  transform: translateX(-50%) translateY(20px);
  max-width: calc(100% - 32px); padding: 10px 16px;
  border-radius: 12px; border: 1px solid var(--line);
  background: var(--card-alt); color: var(--text); font-size: 14px;
  opacity: 0; pointer-events: none; transition: opacity .2s, transform .2s;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.error { border-color: var(--red); color: var(--red); }

.skel { position: relative; overflow: hidden; background: var(--card-alt); border-radius: 8px; min-height: 14px; }
.skel::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.05), transparent);
  animation: shimmer 1.4s infinite;
}
@keyframes shimmer { from { transform: translateX(-100%); } to { transform: translateX(100%); } }
@media (prefers-reduced-motion: reduce) { .skel::after { animation: none; } }

/* -------------------------------------------- iconos SVG (icons.js) */

.icon { display: block; flex: none; }
.btn .icon { display: inline-block; vertical-align: middle; }
.btn-round .icon { width: 20px; height: 20px; }
.ext { display: inline-flex; align-items: center; gap: 5px; }