/* ==========================================================================
   Gutsapps — Design System Stylesheet
   Basado en DESIGN.md: Modern / Glassmorphic, dark mode, cyan + indigo.
   ========================================================================== */

:root{
  --surface:#0b1326;
  --surface-container-lowest:#060e20;
  --surface-container-low:#131b2e;
  --surface-container:#171f33;
  --surface-container-high:#222a3d;
  --surface-container-highest:#2d3449;
  --on-surface:#dae2fd;
  --on-surface-variant:#bbc9cc;
  --outline:#859396;
  --outline-variant:#3c494c;
  --primary:#9cefff;
  --primary-container:#24d9f2;
  --secondary:#c0c1ff;
  --secondary-container:#3131c0;
  --electric-cyan:#24D9F2;
  --deep-navy:#173B67;
  --soft-ice:#EEF6FB;
  --vibrant-indigo:#6366F1;
  --radius-sm:.25rem;
  --radius:.5rem;
  --radius-md:.75rem;
  --radius-lg:1rem;
  --radius-xl:1.5rem;
  --radius-full:9999px;
  --container-max:1280px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--surface);
  color:var(--on-surface);
  font-family:'Inter',system-ui,sans-serif;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Plus Jakarta Sans',sans-serif;
  font-weight:800;
  letter-spacing:-0.02em;
  margin:0 0 .5em;
  color:var(--soft-ice);
}
h1{font-size:2.75rem;line-height:1.1;font-weight:800;}
h2{font-size:2rem;line-height:1.2;font-weight:700;}
h3{font-size:1.375rem;line-height:1.3;font-weight:700;}
p{margin:0 0 1em;color:var(--on-surface-variant);}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}

.container{max-width:var(--container-max);margin:0 auto;padding:0 24px;}
@media (max-width:768px){.container{padding:0 16px;}}

/* Navigation */
.navbar{
  position:sticky;top:0;z-index:50;
  background:rgba(11,19,38,.72);
  backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.navbar .inner{display:flex;align-items:center;justify-content:space-between;height:72px;}
.logo{display:flex;align-items:center;gap:10px;font-family:'Plus Jakarta Sans',sans-serif;font-weight:800;font-size:1.15rem;color:var(--soft-ice);}
.logo-mark{width:32px;height:32px;border-radius:var(--radius);object-fit:cover;flex-shrink:0;}
.navbar nav{display:flex;gap:28px;align-items:center;}
.navbar nav a{font-size:.9rem;font-weight:600;color:var(--on-surface-variant);transition:color .2s;}
.navbar nav a:hover,.navbar nav a[aria-current="page"]{color:var(--primary);}
.navbar .menu-toggle{display:none;background:none;border:0;color:var(--on-surface);font-size:1.5rem;}
@media (max-width:900px){
  .navbar nav{display:none;}
  .navbar .menu-toggle{display:block;}
}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-full);
  font-family:'Plus Jakarta Sans',sans-serif;font-weight:700;font-size:.95rem;
  border:none;cursor:pointer;transition:transform .2s,box-shadow .2s;
}
.btn-primary{
  background:linear-gradient(135deg,var(--electric-cyan),var(--vibrant-indigo));
  color:#00121a;
  box-shadow:0 8px 24px rgba(36,217,242,.25);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(36,217,242,.35);}
.btn-secondary{
  background:transparent;color:var(--soft-ice);
  border:1px solid rgba(255,255,255,.25);
}
.btn-secondary:hover{border-color:var(--electric-cyan);color:var(--electric-cyan);}

/* Glass cards */
.glass-card{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--radius-lg);
  backdrop-filter:blur(24px);
  padding:32px;
}
.app-card{
  display:flex;flex-direction:column;gap:16px;
  transition:transform .25s,border-color .25s;
}
.app-card:hover{transform:translateY(-4px);border-color:rgba(36,217,242,.4);}
.app-card .icon{
  width:56px;height:56px;border-radius:var(--radius-md);
  background:linear-gradient(135deg,var(--surface-container-high),var(--surface-container));
  display:flex;align-items:center;justify-content:center;
  font-size:1.75rem;box-shadow:0 6px 16px rgba(0,0,0,.3);
}
.app-card a.link{
  color:var(--electric-cyan);font-weight:700;font-size:.9rem;
  display:inline-flex;align-items:center;gap:6px;margin-top:auto;
}

/* Phone mockup frame (portrait screenshots) */
.phone-frame{
  position:relative;border-radius:2.5rem;
  border:1px solid rgba(255,255,255,.15);
  background:linear-gradient(160deg,var(--surface-container-high),var(--surface-container-lowest));
  padding:10px;box-shadow:0 24px 60px rgba(0,0,0,.45);
  max-width:320px;margin:0 auto;
}
.phone-frame img{border-radius:2rem;width:100%;aspect-ratio:9/19;object-fit:cover;background:var(--surface-container);}

/* Banner frame (landscape marketing assets, e.g. Play Store feature graphics) */
.banner-frame{
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.12);
  box-shadow:0 24px 60px rgba(0,0,0,.45);
}
.banner-frame img{width:100%;aspect-ratio:1024/500;object-fit:cover;}

.floating-chip{
  position:absolute;background:rgba(11,19,38,.85);
  border:1px solid rgba(255,255,255,.15);
  border-radius:var(--radius-md);backdrop-filter:blur(16px);
  padding:10px 16px;font-size:.8rem;display:flex;gap:10px;align-items:center;
}

/* Sections */
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
@media (max-width:768px){.section{padding:56px 0;} .section-tight{padding:40px 0;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.75rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--primary);margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--electric-cyan);}

.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:32px;}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-auto{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:24px;}
@media (max-width:900px){.grid-2,.grid-3{grid-template-columns:1fr;}}

.chip{
  display:inline-block;padding:6px 14px;border-radius:var(--radius-full);
  font-size:.75rem;font-weight:700;letter-spacing:.03em;
  background:rgba(36,217,242,.12);color:var(--electric-cyan);
  border:1px solid rgba(36,217,242,.3);margin:4px;
}

/* Footer */
footer{border-top:1px solid rgba(255,255,255,.08);padding:64px 0 32px;background:var(--surface-container-lowest);}
footer .grid-3{align-items:start;}
footer h4{font-size:.85rem;text-transform:uppercase;letter-spacing:.06em;color:var(--on-surface-variant);}
footer a{color:var(--on-surface-variant);font-size:.9rem;display:block;margin-bottom:8px;}
footer a:hover{color:var(--primary);}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding-top:32px;margin-top:32px;border-top:1px solid rgba(255,255,255,.06);
  font-size:.8rem;color:var(--outline);
}