/* php-serp-preview */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#0f172a;--surface:#1e293b;--text:#f1f5f9;--muted:#94a3b8;--primary:#3b82f6;--border:#334155;--radius:8px}
body{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh}
header{background:linear-gradient(135deg,#1e293b,#334155);padding:2rem 1rem;text-align:center}
header h1{font-size:1.8rem;margin-bottom:.5rem}
.subtitle{color:var(--muted)}
main{max-width:800px;margin:2rem auto;padding:0 1rem}
label{display:block;margin:1.2rem 0 .5rem;font-weight:600}
label small{float:right;color:var(--muted);font-weight:400}
input,textarea{width:100%;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:var(--radius);padding:.7rem 1rem;font-size:.95rem;font-family:inherit}
input:focus,textarea:focus{outline:2px solid var(--primary);border-color:var(--primary)}
.botones{margin:1.5rem 0}
button,.btn-primary{padding:.7rem 1.4rem;border:none;border-radius:var(--radius);cursor:pointer;font-size:.95rem;font-weight:600;transition:all .2s}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:#2563eb;transform:translateY(-1px)}
h2{font-size:1.2rem;margin-bottom:.5rem}
/* Simulación SERP (estilo Google claro) */
.serp-preview{background:#fff;border-radius:var(--radius);padding:1.2rem;margin-top:.5rem;max-width:600px;font-family:Arial,sans-serif}
.serp-url{color:#202124;font-size:14px;margin-bottom:4px}
.serp-title{color:#1a0dab;font-size:20px;line-height:1.3;cursor:pointer;margin-bottom:4px}
.serp-title:hover{text-decoration:underline}
.serp-desc{color:#4d5156;font-size:14px;line-height:1.4}
.alertas{margin-top:1rem}
.alertas p{padding:.5rem .8rem;border-radius:6px;margin-bottom:.5rem}
.warn{background:#422006;color:#fde68a;border:1px solid #92400e}
.ok{background:#052e1a;color:#86efac;border:1px solid #10b981}
.info{background:var(--surface);padding:1.5rem;border-radius:var(--radius);margin-top:2rem;border-left:4px solid var(--primary)}
.info ul{list-style:disc;padding-left:1.5rem;color:var(--muted);margin-top:.5rem}
.info li{padding:.2rem 0}
.info strong{color:var(--text)}
footer{text-align:center;padding:2rem 1rem;color:var(--muted);border-top:1px solid var(--border);margin-top:2rem}
footer a{color:var(--primary);text-decoration:none}
footer a:hover{text-decoration:underline}
@media(max-width:600px){header h1{font-size:1.4rem}}