/* Base */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-snap-type:y mandatory}
body{font-family:Inter,system-ui,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.6;color:#111;background:#fff}
a{color:inherit;text-decoration:none}
ul{list-style:none}

/* Layout helpers */
.container{max-width:1120px;margin:0 auto;padding:0 16px}

/* Navbar */
.site-header{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(255,255,255,.8);backdrop-filter:saturate(180%) blur(12px);box-shadow:0 1px 0 rgba(17,17,17,.06)}
.navbar{display:flex;align-items:center;justify-content:space-between;min-height:64px;padding:0 16px}
.brand{font-weight:700;display:flex;align-items:center}
.brand img{display:block;height:32px;width:auto}
.nav-links{display:flex;gap:24px}
.nav-links a{padding:8px 4px;border-radius:6px}
.nav-links a:hover{background:rgba(17,17,17,.06)}
.nav-toggle{display:none;flex-direction:column;gap:4px;background:transparent;border:0;padding:8px;cursor:pointer}
.nav-toggle .bar{width:24px;height:2px;background:#111}

/* Mobile drawer */
.mobile-drawer{position:fixed;inset:0 0 0 auto;width:82%;max-width:360px;background:#111;color:#f5f5f5;transform:translateX(100%);transition:transform .3s ease;z-index:60;display:flex;flex-direction:column}
.mobile-drawer.open{transform:translateX(0)}
.drawer-header{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid rgba(255,255,255,.12)}
.drawer-header .brand-mini{display:block;height:28px;width:auto}
.drawer-close{background:transparent;border:0;color:#f5f5f5;font-size:28px;line-height:1;cursor:pointer}
.drawer-links{padding:8px 0}
.drawer-links a{display:block;padding:14px 16px;color:#f5f5f5}
.drawer-links a:hover{background:rgba(255,255,255,.08)}

/* Sections with gradual darkening */
.section{min-height:100vh;scroll-snap-align:start;display:flex;align-items:center}
.section .container{padding-top:96px;padding-bottom:64px}

/* Progressive background from white to gray across sections */
.hero{background:#ffffff}
#home .hero-logo{display:block;height:72px;width:auto;margin:0 auto 12px;opacity:.95}
#about{background:linear-gradient(#fafafa,#f3f3f3)}
#services{background:linear-gradient(#f3f3f3,#e9e9e9)}
#portfolio{background:linear-gradient(#e9e9e9,#dddddd)}
#contact{background:linear-gradient(#dddddd,#d1d1d1)}

/* Content styles */
h1,h2{line-height:1.2}
h1{font-size:clamp(2rem,2.5vw+1rem,3rem);margin-bottom:12px}
h2{font-size:clamp(1.5rem,1.5vw+1rem,2.25rem);margin-bottom:12px}
p{color:#333;max-width:68ch}
.cta{display:inline-block;margin-top:16px;background:#111;color:#fff;padding:12px 16px;border-radius:8px}
.cta:hover{background:#000}
.feature-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:8px}
.feature-list li{background:#fff;border:1px solid #e5e5e5;border-radius:8px;padding:12px}

/* Image grids */
.grid{display:grid;gap:16px;margin-top:12px}
.grid.cards{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid.team{grid-template-columns:repeat(3,minmax(0,1fr))}
.card,.person{background:#fff;border:1px solid #e5e5e5;border-radius:12px;overflow:hidden}
.card img,.person img{display:block;width:100%;height:220px;object-fit:cover;background:#e9e9e9}
.card h4{padding:12px}
.person figcaption{padding:12px}

/* Forms */
.contact-form{display:grid;gap:12px;max-width:560px}
.field{display:grid;gap:6px}
label{font-weight:600}
input,textarea{width:100%;border:1px solid #ccc;border-radius:8px;padding:10px;font:inherit}
input:focus,textarea:focus{outline:2px solid #111;outline-offset:1px}

/* Footer */
.site-footer{background:#d1d1d1}
.site-footer .container{padding:24px 16px}

/* Responsive */
@media (max-width: 900px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .feature-list{grid-template-columns:1fr}
  .grid.cards{grid-template-columns:1fr}
  .grid.team{grid-template-columns:repeat(2,minmax(0,1fr))}
}