:root {
  --bg: #FFFFFF;
  --card: #FFFFFF;
  --text: #191919;
  --text-muted: #6B6B6B;
  --border: #E5E5E5;
  --accent: #C3D60A;
  --accent-dark: #9AAE08;
  --accent-bg: #F3F7CE;
  --success: #3B6D11;
  --success-bg: #EAF3DE;
  --warning: #854F0B;
  --warning-bg: #FAEEDA;
  --radius: 14px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.wrap {
  max-width: 480px;
  margin: 0 auto;
  padding: 24px 20px 60px;
}

.card {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 20px;
  border-bottom: 0.5px solid var(--border);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-muted);
}
.topbar span:not(:nth-child(2)) { text-transform: lowercase; }

.captura-aviso {
  text-align: center;
  font-size: 12px;
  color: var(--text-muted);
  margin: -8px 28px 18px;
}

.nav-links {
  display: flex;
  justify-content: center;
  gap: 10px;
  padding: 14px 20px;
  border-bottom: 0.5px solid var(--border);
  background: #FAFAFA;
  flex-wrap: wrap;
}
.nav-links a {
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  text-decoration: none;
  background: #fff;
  border: 0.5px solid var(--border);
  border-radius: 20px;
  padding: 7px 14px;
}
.nav-links a:hover { background: var(--accent-bg); }

.hero {
  text-align: center;
  padding: 36px 28px 24px;
  background-size: cover;
  background-position: center;
  position: relative;
}

.hero.con-banner {
  padding: 56px 24px 40px;
}
.hero.con-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(25, 25, 25, 0.55);
}
.hero.con-banner h1, .hero.con-banner p {
  position: relative;
  color: #fff;
}

.hero h1 {
  font-size: 24px;
  font-weight: 500;
  line-height: 1.3;
  margin: 12px 0 8px;
}

.hero p {
  font-size: 14px;
  color: var(--text-muted);
  margin: 0 0 8px;
}

.form-body { padding: 0 28px 32px; display: flex; flex-direction: column; gap: 14px; }

label.field-label {
  display: block;
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

input[type="text"], input[type="tel"], input[type="email"] {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 0.5px solid var(--border);
  font-size: 15px;
  background: #fff;
}

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
}

.btn {
  width: 100%;
  padding: 13px;
  border: none;
  border-radius: 10px;
  background: var(--accent);
  color: var(--text);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  display: inline-block;
}

.btn:hover { background: var(--accent-dark); }

.btn-secondary {
  background: transparent;
  border: 0.5px solid var(--border);
  color: var(--text);
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 0.5px solid var(--border);
}
.steps div {
  text-align: center;
  padding: 18px 8px;
  border-right: 0.5px solid var(--border);
  font-size: 12px;
  color: var(--text-muted);
}
.steps div:last-child { border-right: none; }

.footer-note {
  text-align: center;
  padding: 10px;
  background: #F5F2EC;
  font-size: 11px;
  color: var(--text-muted);
}

.numero-grande {
  text-align: center;
  padding: 28px 28px 0;
}
.numero-grande .label { font-size: 12px; color: var(--text-muted); margin: 0; }
.numero-grande .valor { font-size: 30px; font-weight: 500; margin: 4px 0 16px; }

.qr-box {
  display: flex;
  justify-content: center;
  padding: 0 28px;
}
.qr-box img { width: 160px; height: 160px; border-radius: 10px; border: 0.5px solid var(--border); }

.checklist-form { padding: 20px 28px; display: flex; flex-direction: column; gap: 10px; }
.checklist-form .checkbox-row { font-size: 14px; color: var(--text); }

.ig-buttons { padding: 4px 28px 0; display: flex; flex-direction: column; gap: 8px; }
.ig-buttons .btn {
  background: #fff;
  color: var(--text);
  border: 1.5px solid var(--text);
}
.ig-buttons .btn:hover { background: var(--accent-bg); }
.ig-buttons .btn.btn-confirmar {
  background: var(--accent);
  color: var(--text);
  border: none;
}
.ig-buttons .btn.btn-confirmar:hover { background: var(--accent-dark); }
.btn-done { background: var(--success-bg) !important; border-color: var(--success) !important; color: var(--success) !important; }

.referral-box {
  margin: 0 28px 28px;
  background: #F5F2EC;
  border-radius: 10px;
  padding: 16px;
  text-align: center;
}
.referral-title { font-size: 14px; font-weight: 500; margin: 0 0 6px; }
.referral-sub { font-size: 12px; color: var(--text-muted); margin: 0 0 12px; }
.btn-whatsapp { background: #25D366; margin-bottom: 10px; }
.btn-whatsapp:hover { background: #1DA851; }
.ref-link-input {
  width: 100%;
  padding: 9px 10px;
  border-radius: 8px;
  border: 0.5px solid var(--border);
  font-size: 12px;
  color: var(--text-muted);
  background: #fff;
  text-align: center;
}

.cupon {
  margin: 0 28px 28px;
  background: var(--accent-bg);
  color: var(--text);
  border-radius: 10px;
  padding: 14px;
  text-align: center;
  font-size: 14px;
  font-weight: 500;
}

.aviso {
  margin: 0 28px 20px;
  background: var(--accent-bg);
  border-radius: 10px;
  padding: 14px 16px;
  font-size: 13px;
  color: var(--text);
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.aviso .icono { font-size: 16px; line-height: 1; }
.aviso strong { color: var(--text); }

.badge {
  display: inline-block;
  font-size: 11px;
  padding: 2px 10px;
  border-radius: 20px;
}
.badge-success { background: var(--success-bg); color: var(--success); }
.badge-warning { background: var(--warning-bg); color: var(--warning); }

/* Verificación pública */
.verif-card { padding: 24px 24px 28px; }
.verif-card h1 { font-size: 18px; font-weight: 500; margin: 0 0 4px; }
.verif-card .sub { font-size: 12px; color: var(--text-muted); margin: 0 0 16px; }
.verif-form { display: flex; gap: 8px; margin-bottom: 18px; }
.verif-form input { flex: 1; }
.verif-form button { width: auto; padding: 10px 16px; }
table.datos { width: 100%; font-size: 13px; border-collapse: collapse; }
table.datos td { padding: 6px 0; }
table.datos td.k { color: var(--text-muted); }
table.datos td.v { text-align: right; }

/* Admin */
.admin-wrap { max-width: 900px; margin: 0 auto; padding: 24px 20px 60px; }
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); gap: 12px; margin-bottom: 20px; }
.stat-card { background: var(--card); border: 0.5px solid var(--border); border-radius: 10px; padding: 14px; }
.stat-card .label { font-size: 12px; color: var(--text-muted); margin: 0 0 4px; }
.stat-card .value { font-size: 22px; font-weight: 500; margin: 0; }

.toolbar { display: flex; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.toolbar input[type="text"] { flex: 1; min-width: 180px; }
.toolbar .btn, .toolbar button { width: auto; }

table.admin-table { width: 100%; border-collapse: collapse; font-size: 13px; background: var(--card); border: 0.5px solid var(--border); border-radius: 10px; overflow: hidden; }
table.admin-table th { text-align: left; padding: 10px 8px; color: var(--text-muted); font-weight: 500; border-bottom: 0.5px solid var(--border); background: #F5F2EC; }
table.admin-table td { padding: 8px; border-bottom: 0.5px solid var(--border); }
table.admin-table tr:last-child td { border-bottom: none; }

.ganador-box { background: var(--accent-bg); border-radius: 10px; padding: 16px; margin-bottom: 20px; }
.ganador-box h3 { margin: 0 0 8px; font-size: 15px; color: var(--accent-dark); }

.login-hint { max-width: 480px; margin: 60px auto; text-align: center; color: var(--text-muted); font-size: 13px; }

/* Home: dos botones grandes de elección */
.home-opciones { padding: 32px 28px 28px; display: flex; flex-direction: column; gap: 14px; }
.home-opciones .btn { padding: 18px; font-size: 16px; }
.home-opciones .btn-secondary-grande {
  background: #fff;
  border: 1.5px solid var(--text);
  color: var(--text);
  padding: 18px;
  font-size: 16px;
}

/* Checkbox de términos con link */
.checkbox-row a { color: var(--text); text-decoration: underline; font-weight: 500; }

/* Términos: cuerpo de texto */
.terminos-body { padding: 24px 28px; font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
.terminos-body h3 { font-size: 14px; color: var(--text); margin: 18px 0 6px; }
.terminos-body h3:first-child { margin-top: 0; }
.terminos-body p { margin: 0 0 4px; }

/* Admin: búsqueda rápida por número */
.busqueda-rapida {
  display: flex;
  gap: 8px;
  align-items: center;
  background: var(--accent-bg);
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 16px;
}
.busqueda-rapida input { flex: 1; max-width: 160px; }
.busqueda-rapida button { width: auto; padding: 8px 16px; }

/* Admin: zona de riesgo, separada del resto */
.zona-riesgo {
  margin-top: 28px;
  border: 1px dashed #c0392b;
  border-radius: 10px;
  padding: 16px;
}
.zona-riesgo p.titulo { font-size: 12px; color: #c0392b; font-weight: 500; margin: 0 0 10px; text-transform: uppercase; }

/* Countdown */
.countdown-box {
  text-align: center;
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  background: var(--accent-bg);
  padding: 10px;
}

/* Barra de progreso del checklist */
.progreso-wrap { padding: 0 28px 16px; }
.progreso-label { font-size: 12px; color: var(--text-muted); margin: 0 0 6px; text-align: center; }
.progreso-barra { height: 8px; background: #F0F0F0; border-radius: 20px; overflow: hidden; }
.progreso-fill { height: 100%; background: var(--accent); border-radius: 20px; transition: width 0.3s; }

/* Compartir historia de Instagram */
.historia-box {
  margin: 0 28px 20px;
  background: #FAFAFA;
  border: 0.5px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  text-align: center;
}
.historia-box p.titulo { font-size: 13px; font-weight: 500; margin: 0 0 4px; }
.historia-box p.sub { font-size: 12px; color: var(--text-muted); margin: 0 0 12px; }
.historia-box .fila-botones { display: flex; gap: 8px; }
.historia-box .fila-botones .btn { width: auto; flex: 1; padding: 10px; font-size: 13px; }

/* Admin: badges de alerta */
.badge-danger { background: #FDEBEA; color: #c0392b; }

/* Lista pública de participantes */
.lista-participantes { padding: 4px 24px 24px; }
.lista-participantes .fila {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  padding: 10px 0;
  border-bottom: 0.5px solid var(--border);
}
.lista-participantes .fila .num {
  background: var(--accent);
  color: var(--text);
  font-weight: 500;
  font-size: 11px;
  padding: 3px 9px;
  border-radius: 20px;
  white-space: nowrap;
}
.lista-participantes .fila .chances {
  font-size: 11px;
  color: var(--text-muted);
  white-space: nowrap;
}

/* Uploader de banner en el admin */
.banner-uploader {
  background: var(--card);
  border: 0.5px solid var(--border);
  border-radius: 10px;
  padding: 16px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.banner-uploader input[type="file"] { font-size: 12px; }
.banner-uploader button { width: auto; padding: 8px 16px; }

.btn-mini {
  background: var(--accent);
  color: var(--text);
  border: none;
  border-radius: 6px;
  font-size: 11px;
  font-weight: 500;
  padding: 3px 7px;
  cursor: pointer;
  min-height: auto;
}
.btn-mini:hover { background: var(--accent-dark); }

.table-scroll { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* Targets táctiles cómodos en mobile */
input[type="text"], input[type="tel"], input[type="email"], .btn, button {
  min-height: 44px;
}

/* Pantallas chicas (celulares angostos, ~360px) */
@media (max-width: 380px) {
  .wrap, .admin-wrap { padding-left: 12px; padding-right: 12px; }
  .hero { padding: 28px 20px 20px; }
  .hero h1 { font-size: 21px; }
  .form-body, .checklist-form, .ig-buttons { padding-left: 20px; padding-right: 20px; }
  .referral-box, .cupon { margin-left: 20px; margin-right: 20px; }
  .qr-box img { width: 140px; height: 140px; }
  .toolbar { flex-direction: column; }
  .toolbar form, .toolbar a, .toolbar button { width: 100%; }
  table.admin-table { min-width: 560px; }
}

/* Pantallas grandes: que no se sientan perdidas las páginas angostas */
@media (min-width: 700px) {
  .wrap { padding-top: 48px; }
}