/* AI Pro Design Enhancements */

/* Focus visibility across interactive elements */
:where(a, button, [role="button"], input, select, textarea, .nav-link, .btn):focus-visible{
  outline: 3px solid var(--primary);
  outline-offset: 2px;
  border-radius: max(var(--radius-sm, 6px), 6px);
}

/* Reduced motion defaults (respect system) */
@media (prefers-reduced-motion: reduce){
  :root{
    --spring-duration: 0.01ms;
  }
  .gradient-orb{ animation: none !important; }
  *{ scroll-behavior: auto !important; }
}

/* Buttons polish */
.btn{ will-change: transform; }
.btn:hover{ transform: translateY(-1px) scale(1.02); box-shadow: var(--shadow-hover, 0 12px 48px rgba(31,38,135,.25)); }
.btn:active{ transform: translateY(0) scale(0.98); }

/* Back to Top */
.back-to-top{
  position: fixed;
  right: var(--space-lg);
  bottom: var(--space-lg);
  width: 56px; height: 56px;
  border: none; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  color: #fff; font-weight: 800; font-size: 1.25rem; line-height: 1;
  display: inline-flex; align-items: center; justify-content: center;
  cursor: pointer; box-shadow: var(--shadow-glass);
  opacity: 0; transform: translateY(10px) scale(.9);
  pointer-events: none; transition: all .3s var(--ease-out-expo);
  z-index: 1100;
}
.back-to-top.show{ opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
.back-to-top:focus-visible{ outline-color: #fff; }

/* Trust bar */
.trust-bar{ padding-top: 0; }
.trust-inner{
  max-width: 1200px; margin: 0 auto; padding: var(--space-lg) var(--space-md);
  display: grid; gap: var(--space-md); justify-items: center;
}
.trust-label{
  color: var(--gray-600); font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
  font-size: .9rem;
}
.trust-logos{
  display: grid; grid-template-columns: repeat(2, minmax(120px, 1fr));
  gap: var(--space-lg); align-items: center; width: 100%;
}
@media (min-width: 720px){
  .trust-logos{ grid-template-columns: repeat(4, minmax(140px, 1fr)); }
}
.trust-logos .logo-item{
  height: 44px; border-radius: var(--radius-md);
  display: grid; place-items: center; font-weight: 800; letter-spacing: .02em;
  color: var(--gray-500);
  background: rgba(var(--white-rgb), var(--glass-opacity));
  border: 1px solid rgba(var(--white-rgb), .18);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  filter: grayscale(1) contrast(1.1) opacity(.85);
  transition: all .3s ease;
}
.trust-logos .logo-item:hover{
  filter: none; color: var(--primary);
  transform: translateY(-2px);
}

/* Metrics */
.metrics{ padding-top: 0; }
.metrics-grid{
  max-width: 1100px; margin: 0 auto; padding: var(--space-lg) var(--space-md);
  display: grid; gap: var(--space-md);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}
@media (min-width: 960px){
  .metrics-grid{ grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
.metric{
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  background: rgba(var(--white-rgb), var(--glass-opacity));
  border: 1px solid rgba(var(--white-rgb), .18);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  text-align: center;
  box-shadow: var(--shadow-glass);
}
.metric .value{
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 900; letter-spacing: -.02em;
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.metric .label{ color: var(--gray-600); font-weight: 600; margin-top: .35rem; }

/* CTA band */
.cta-band{
  position: relative;
  margin-top: var(--space-xl);
  border-radius: var(--radius-xl);
  max-width: 1100px; margin-inline: auto;
  overflow: hidden;
  box-shadow: var(--shadow-glass);
}
.cta-band::before{
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(1200px 1200px at 10% -10%, rgba(var(--primary-rgb),.18), transparent 60%),
              radial-gradient(1200px 1200px at 110% 110%, rgba(var(--secondary-rgb),.18), transparent 60%);
  pointer-events: none;
}
.cta-inner{
  position: relative; padding: var(--space-xl) var(--space-lg);
  display: grid; gap: var(--space-md); justify-items: center; text-align: center;
}
.cta-inner h3{ font-size: clamp(1.5rem, 3vw, 2rem); letter-spacing: -.01em; }
.cta-inner p{ color: var(--gray-600); max-width: 60ch; }
.cta-inner .btn{ margin-top: var(--space-sm); }

/* High contrast support adjustments */
body.high-contrast .trust-logos .logo-item{ background: #000; color: #fff; border-color: #fff; }
body.high-contrast .metric{ background: #000; color: #fff; border-color: #fff; }

/* --------------------------- */
/* Mobile responsiveness fixes */
/* --------------------------- */

/* Mobile menu overlay (stays hidden until .active) */
.mobile-menu{
  position: fixed;
  inset: var(--nav-height) 0 0 0; /* below the fixed nav */
  /* Frosted glass + subtle blue tint */
  background:
    linear-gradient(180deg, rgba(255,255,255,.28), rgba(255,255,255,.16)),
    radial-gradient(1400px 900px at 100% -20%, rgba(var(--primary-rgb), .12), transparent 70%);
  backdrop-filter: blur(22px) saturate(140%);
  -webkit-backdrop-filter: blur(22px) saturate(140%);
  z-index: 1002; /* above nav and utility bar */
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity .3s ease, transform .3s ease;
  pointer-events: none;
}
.mobile-menu.active{
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.mobile-menu-list{
  list-style: none;
  padding: var(--space-xl) var(--space-lg);
  display: grid;
  gap: var(--space-md);
}
.mobile-menu-list a{
  display: block;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--gray-900);
  padding: calc(var(--space-sm) + 2px) var(--space-md);
  border-radius: var(--radius-lg);
  /* Glass pill */
  background:
    linear-gradient(180deg, rgba(255,255,255,.58), rgba(255,255,255,.38)),
    radial-gradient(400px 260px at 0 0, rgba(var(--primary-rgb), .10), transparent 70%);
  border: 1px solid rgba(var(--primary-rgb), .25);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.45), 0 4px 16px rgba(0,0,0,.06);
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.mobile-menu-list a:hover{
  transform: translateY(-1px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.55), 0 8px 24px rgba(0,0,0,.08);
}

/* Dark theme for mobile menu */
[data-theme="dark"] .mobile-menu{
  background:
    linear-gradient(180deg, rgba(18,24,36,.72), rgba(12,18,28,.64)),
    radial-gradient(1400px 900px at 100% -20%, rgba(var(--primary-rgb), .14), transparent 70%);
  border-top: 1px solid rgba(255,255,255,.12);
}
[data-theme="dark"] .mobile-menu-list a{
  color: #E8ECF3;
  background:
    linear-gradient(180deg, rgba(26,34,50,.72), rgba(18,26,40,.58)),
    radial-gradient(400px 260px at 0 0, rgba(var(--primary-rgb), .16), transparent 70%);
  border: 1px solid rgba(255,255,255,.14);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.08), 0 4px 18px rgba(0,0,0,.28);
}
[data-theme="dark"] .mobile-menu-list a:hover{
  box-shadow: inset 0 1px 0 rgba(255,255,255,.12), 0 8px 28px rgba(0,0,0,.35);
}

/* Desktop-only: never show overlay menu */
@media (min-width: 821px){
  .mobile-menu{ display: none !important; }
}

/* Small screens: compact nav, show hamburger, avoid overlaps */
@media (max-width: 820px){
  /* Smaller nav height variables */
  :root{
    --nav-height: 72px;
    --nav-height-scrolled: 64px;
  }

  /* Hide desktop nav list, show hamburger */
  .nav-menu{ display: none !important; }
  .mobile-menu-toggle{ display: inline-flex !important; align-items: center; justify-content: center; }
  .mobile-menu-toggle span{ display: block; width: 22px; height: 2px; background: var(--gray-800); margin: 4px 0; border-radius: 2px; transition: transform .25s ease, opacity .25s ease; }

  /* Compact nav padding and logo size */
  .nav{ padding: var(--space-sm) var(--space-lg); }
  .logo img{ height: 32px; }

  /* Ensure content clears the fixed nav */
  #main{ padding-top: var(--nav-height); }

  /* Move utility bar away from the header to prevent overlap */
  .utility-bar{
    top: auto;
    bottom: var(--space-md);
    right: var(--space-md);
    gap: var(--space-xs);
    z-index: 1001;
  }
  .utility-btn{ width: 44px; height: 44px; }

  /* Friendlier hero on small screens */
  .hero{
    min-height: auto;
    padding: var(--space-2xl) var(--space-md);
  }
  .hero-title{ font-size: clamp(2rem, 9vw, 3rem); }
  .hero-subtitle{ font-size: 1.1rem; margin-bottom: var(--space-lg); }
}