/* Custom Smart Blinds — Modern UI (2025) */
:root{
  --csb-bg:#ffffff;--csb-text:#111827;--csb-muted:#6b7280;--csb-border:#e5e7eb;
  --csb-primary:#0f172a;--csb-primary-600:#111827;--csb-primary-700:#0b1223;
  --csb-accent:#22c55e;--csb-accent-600:#16a34a;--csb-accent-700:#15803d;
  --csb-radius:12px;--csb-radius-sm:8px;--csb-shadow:0 12px 40px rgba(0,0,0,.08);
}
html{scroll-behavior:smooth}
body{color:var(--csb-text);background:var(--csb-bg);font-feature-settings:"ss01" on,"liga" on}

/* Typography */
h1,h2,h3,h4{letter-spacing:-.01em}
.lead{color:var(--csb-muted)}

/* Navbar */
.c-nav{backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--csb-border);transition:all 0.3s ease}
.c-nav.sticky{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(255,255,255,0.95);backdrop-filter:saturate(180%) blur(12px);box-shadow:0 4px 20px rgba(0,0,0,0.1)}
.c-nav .navbar-brand{font-weight:700;padding:0.5rem 0}
.c-nav .navbar-brand .logo-complete{transition:transform .2s ease, filter .2s ease;height:40px;width:auto;max-width:280px;image-rendering:crisp-edges;image-rendering:-webkit-optimize-contrast}
.c-nav .navbar-brand:hover .logo-complete{transform:scale(1.02);filter:brightness(1.05)}
.c-nav .nav-link{padding:.75rem 1rem;font-weight:500}
.c-nav .nav-link.active{color:var(--csb-primary);font-weight:600}
.c-nav .btn-primary{border-radius:999px;padding:.6rem 1rem}

/* Responsive logo sizing */
@media (max-width: 992px) {
  .c-nav .navbar-brand .logo-complete{height:36px;max-width:250px}
}
@media (max-width: 768px) {
  .c-nav .navbar-brand .logo-complete{height:32px;max-width:220px}
}
@media (max-width: 576px) {
  .c-nav .navbar-brand .logo-complete{height:28px;max-width:180px}
}

/* Hero */
.c-hero{background:radial-gradient(1200px 400px at 10% -10%, rgba(34,197,94,.10), transparent),
          radial-gradient(900px 300px at 90% 0%, rgba(15,23,42,.08), transparent);}
.c-hero h1{font-weight:800}
.c-hero .btn{border-radius:999px}

/* Cards */
.c-card{background:#fff;border:1px solid var(--csb-border);border-radius:var(--csb-radius);box-shadow:var(--csb-shadow);transition:transform .18s ease, box-shadow .18s ease}
.c-card:hover{transform:translateY(-2px);box-shadow:0 18px 54px rgba(0,0,0,.12)}
.c-card .c-card-body{padding:1.2rem}
.c-card h3,.c-card h4{margin:0 0 .35rem}
.c-card p{margin:0;color:var(--csb-muted)}

/* Footer */
.c-footer{border-top:1px solid var(--csb-border);background:linear-gradient(180deg, #fff, #fafafa)}
.c-footer a{color:var(--csb-text)}
.c-footer a.btn{border-radius:999px}

/* Utilities */
.text-muted-600{color:var(--csb-muted)}
.rounded-xl{border-radius:var(--csb-radius)}
.shadow-xl{box-shadow:var(--csb-shadow)}
.btn-primary{background:var(--csb-primary);border-color:var(--csb-primary-600)}
.btn-primary:hover{background:var(--csb-primary-700);border-color:var(--csb-primary-700)}
.btn-outline-dark{border-radius:999px}
button,.btn{transition:transform .12s ease, box-shadow .12s ease}
.btn:hover{transform:translateY(-1px)}
.skip-link{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.skip-link:focus{left:1rem;top:1rem;width:auto;height:auto;background:#000;color:#fff;padding:.5rem .75rem;border-radius:.5rem;z-index:10000}

/* Sticky header compensation */
body.sticky-header-active{padding-top:80px}

/* Images */
img{border-radius:var(--csb-radius-sm)}

/* Reduce motion */
@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
}