/* style.css — Encuesta + rifa XML Control Lite (páginas públicas). Mobile-first. */
:root{
  --blue:#1d4ed8; --blue-2:#2563eb; --blue-3:#3b82f6; --blue-bg:#eff6ff;
  --ink:#0f172a; --text:#334155; --muted:#64748b; --line:#e2e8f0;
  --bg:#f1f5f9; --card:#fff; --green:#059669; --green-bg:#ecfdf5; --red:#dc2626; --red-bg:#fef2f2;
  --amber:#b45309; --amber-bg:#fffbeb;
  --radius:16px; --shadow:0 10px 30px rgba(15,23,42,.07);
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:'DM Sans',system-ui,-apple-system,'Segoe UI',sans-serif;background:var(--bg);color:var(--text);
  line-height:1.55;font-size:16px;padding-bottom:env(safe-area-inset-bottom)}
a{color:var(--blue-2)}
img{max-width:100%}

.topbar{background:#fff;border-bottom:1px solid var(--line);padding:12px 16px;padding-top:calc(12px + env(safe-area-inset-top))}
.brand{display:inline-flex;align-items:center;gap:9px;text-decoration:none;color:var(--ink);font-weight:800;font-size:16px}
.brand img{border-radius:7px}

/* Hero */
.hero{background:linear-gradient(135deg,#1e3a8a 0%,#1d4ed8 55%,#0ea5e9 100%);color:#fff;padding:34px 16px 72px;text-align:center}
.hero .tag{display:inline-block;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
  border-radius:100px;padding:5px 14px;font-size:13px;font-weight:600;margin-bottom:14px}
.hero h1{font-size:clamp(26px,7vw,40px);line-height:1.12;font-weight:800;letter-spacing:-.5px;max-width:720px;margin:0 auto 12px}
.hero p{font-size:17px;opacity:.92;max-width:560px;margin:0 auto}
.prize{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:20px}
.prize span{background:#fff;color:var(--ink);border-radius:12px;padding:9px 14px;font-size:14px;font-weight:600;box-shadow:0 6px 18px rgba(0,0,0,.15)}
.prize b{color:var(--blue)}

.wrap{max-width:680px;margin:-48px auto 0;padding:0 14px 40px}
.wrap.plain{margin-top:24px}
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--line);padding:22px 18px;margin-bottom:16px}
@media(min-width:600px){.card{padding:28px 30px}}
.card h2{font-size:19px;color:var(--ink);font-weight:800;margin-bottom:4px;display:flex;align-items:center;gap:10px}
.card h2 .n{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;
  background:var(--blue-bg);color:var(--blue);font-size:14px;flex:0 0 auto}
.card .lead{color:var(--muted);font-size:14.5px;margin-bottom:16px}

/* Formulario */
.field{margin-bottom:16px}
.field > label,.field > .lbl{display:block;font-weight:700;color:var(--ink);font-size:15px;margin-bottom:6px}
.req{color:var(--red)}
.hint{font-size:13px;color:var(--muted);margin-top:4px}
input[type=text],input[type=email],input[type=tel],select,textarea{width:100%;font:inherit;font-size:16px;color:var(--ink);
  background:#fff;border:1.5px solid var(--line);border-radius:11px;padding:12px 13px;outline:none;transition:border-color .15s,box-shadow .15s;
  -webkit-appearance:none;appearance:none}
select{background-image:linear-gradient(45deg,transparent 50%,#64748b 50%),linear-gradient(135deg,#64748b 50%,transparent 50%);
  background-position:calc(100% - 18px) 52%,calc(100% - 13px) 52%;background-size:5px 5px;background-repeat:no-repeat;padding-right:34px}
textarea{min-height:84px;resize:vertical}
input:focus,select:focus,textarea:focus{border-color:var(--blue-3);box-shadow:0 0 0 4px rgba(59,130,246,.15)}
.field.err input,.field.err select,.field.err .opts{border-color:var(--red)}
.field .emsg{color:var(--red);font-size:13px;margin-top:5px;font-weight:600}

/* Opciones tipo tarjeta (radio / checkbox) */
.opts{display:grid;gap:8px;border-radius:12px}
@media(min-width:560px){.opts.cols2{grid-template-columns:1fr 1fr}}
.opt{display:flex;align-items:center;gap:11px;border:1.5px solid var(--line);border-radius:11px;padding:11px 13px;cursor:pointer;
  background:#fff;font-size:15px;color:var(--ink);transition:border-color .15s,background .15s;min-height:48px}
.opt input{width:20px;height:20px;accent-color:var(--blue);flex:0 0 auto;margin:0}
.opt:has(input:checked){border-color:var(--blue-3);background:var(--blue-bg)}
.check{display:flex;gap:11px;align-items:flex-start;font-size:14.5px;color:var(--text);margin-bottom:12px;cursor:pointer}
.check input{width:20px;height:20px;accent-color:var(--blue);margin-top:2px;flex:0 0 auto}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;border:none;border-radius:13px;
  background:var(--blue);color:#fff;font:inherit;font-size:17px;font-weight:800;padding:15px 20px;cursor:pointer;
  text-decoration:none;transition:background .15s,transform .1s;min-height:52px}
.btn:hover{background:#1e40af}
.btn:active{transform:scale(.99)}
.btn.wa{background:#25D366;color:#073b20}
.btn.ghost{background:#fff;color:var(--blue);border:1.5px solid var(--line)}

.alert{border-radius:12px;padding:13px 15px;font-size:14.5px;margin-bottom:16px;font-weight:500}
.alert.err{background:var(--red-bg);color:#991b1b;border:1px solid #fecaca}
.alert.ok{background:var(--green-bg);color:#065f46;border:1px solid #a7f3d0}
.alert.warn{background:var(--amber-bg);color:var(--amber);border:1px solid #fde68a}

.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* Gracias */
.done{text-align:center}
.done .big{font-size:52px;line-height:1;margin-bottom:10px}
.folio{display:inline-block;font-family:ui-monospace,'SFMono-Regular',Consolas,monospace;font-size:26px;font-weight:800;letter-spacing:2px;
  color:var(--blue);background:var(--blue-bg);border:2px dashed #93c5fd;border-radius:14px;padding:12px 20px;margin:12px 0 6px}
.stack{display:grid;gap:10px;margin-top:18px}

/* Texto legal */
.legal h1{font-size:24px;color:var(--ink);margin-bottom:6px}
.legal h2{font-size:17px;color:var(--ink);margin:20px 0 6px}
.legal p,.legal li{font-size:15px;margin-bottom:8px}
.legal ol,.legal ul{padding-left:22px}

.foot{text-align:center;color:var(--muted);font-size:13px;padding:10px 16px 34px}
.foot p{margin-bottom:4px}