/* landing.css - modular, solo estilos de la landing */
:root{
  --bg:#f5f7fb;
  --card:#ffffff;
  --muted:#6b7280;
  --accent:#0f62fe;
  --accent-2:#0b83ff;
  --text:#0b1220;
  --radius:12px;
  --shadow:0 14px 40px rgba(2,6,23,0.08);
  --container:1100px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial;
}

*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{
  font-family:var(--font);
  background:linear-gradient(180deg,#eef6ff 0%,var(--bg) 100%);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.45;
  padding:0;
}

.container{max-width:var(--container);margin:0 auto;padding:0 20px}

/* Header */
.ls-header{display:flex;align-items:center;justify-content:space-between;padding:18px 0}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:inherit}
.brand-logo{width:48px;height:48px;object-fit:contain;border-radius:8px}
.brand-title{font-weight:800;font-size:1.05rem}
.ls-nav{display:flex;gap:10px;align-items:center}
.btn{display:inline-flex;align-items:center;justify-content:center;border-radius:10px;padding:8px 12px;text-decoration:none;font-weight:800;cursor:pointer}
.btn-ghost{background:transparent;border:1px solid rgba(2,6,23,0.04);color:var(--text)}
.btn-outline{background:transparent;border:1px solid rgba(2,6,23,0.06);color:var(--muted)}
.btn-primary{background:linear-gradient(90deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 12px 30px rgba(12,109,255,0.08)}
.btn-lg{padding:12px 18px;font-size:1rem}

/* Hero */
.ls-hero{padding:32px 0 8px}
.hero-inner{display:flex;gap:32px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.hero-left{flex:1;min-width:300px;max-width:720px}
.hero-title{font-size:2.4rem;margin:0 0 8px}
.brand-gradient{background:linear-gradient(90deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:900}
.hero-sub{color:var(--muted);font-size:1.05rem;margin:0 0 16px;max-width:56ch}
.hero-ctas{display:flex;gap:12px;align-items:center;margin-bottom:14px}

.quick-features{list-style:none;padding:0;margin:8px 0 0;display:flex;gap:12px;color:var(--muted);flex-wrap:wrap}
.quick-features li{display:inline-flex;gap:8px;align-items:center;padding:6px 10px;border-radius:8px}
.dev-helpers{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}

/* visual */
.hero-right{min-width:280px;display:flex;align-items:center;justify-content:center}
.visual-card{width:320px;height:320px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:linear-gradient(180deg,#fff,#fbfdff);box-shadow:var(--shadow)}
.visual-img{width:260px;height:260px;object-fit:contain;border-radius:12px}

/* features */
.ls-features{padding:24px 0}
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.feature{padding:18px;text-align:center;border-radius:12px;background:linear-gradient(180deg,#fff,#fbfdff);box-shadow:0 8px 20px rgba(2,6,23,0.04)}
.feature-icon{font-size:26px;margin-bottom:10px}
.feature h3{margin:8px 0}
.feature p{color:var(--muted);margin:0}

/* footer */
.ls-footer{padding:18px 0;border-top:1px solid rgba(2,6,23,0.04)}
.footer-inner{display:flex;align-items:center;justify-content:space-between}

/* card util */
.card{background:var(--card);border-radius:var(--radius);box-shadow:var(--shadow);padding:12px;border:1px solid rgba(2,6,23,0.04)}
.muted{color:var(--muted)}
.link{color:var(--accent);text-decoration:none;font-weight:700}

/* loading overlay */
.loading-overlay{position:fixed;inset:0;display:none;align-items:center;justify-content:center;flex-direction:column;background:rgba(6,12,24,0.4);z-index:9999}
.loading-overlay[aria-hidden="false"]{display:flex}
.spinner{width:56px;height:56px;border-radius:50%;border:6px solid rgba(255,255,255,0.12);border-top-color:rgba(255,255,255,0.9);animation:spin 1s linear infinite}
.loading-text{color:#fff;margin-top:12px;font-weight:700}

@keyframes spin{to{transform:rotate(360deg)}}

/* responsive */
@media(max-width:900px){
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .hero-inner{gap:22px}
}
@media(max-width:600px){
  .feature-grid{grid-template-columns:1fr}
  .hero-inner{flex-direction:column-reverse}
  .hero-title{font-size:1.8rem}
  .visual-card{width:220px;height:220px}
}