/* SE London Aerial Survey — shared stylesheet (v2, matched to live site) */

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@500;600;700;800&family=Inter:wght@400;500;600&display=swap');

:root{
  --bg:#FAF8F4;          /* warm off-white page background */
  --panel:#FFFFFF;       /* card / panel background */
  --line:#E7E2D8;        /* hairline borders */
  --navy:#153350;        /* heading / primary text */
  --text-dim:#5B6670;    /* body copy gray */
  --blue:#2AA7DE;        /* brand light blue (from logo) */
  --blue-dark:#0F5C8C;   /* brand deep blue (from logo) */
  --orange:#E1690E;      /* brand orange (from logo, CTA colour) */
  --amber:#F2A93C;       /* brand amber (from logo) */
  --radius:10px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--navy);
  font-family:'Inter',sans-serif;
  font-size:16px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{
  font-family:'Poppins',sans-serif;
  font-weight:700;
  line-height:1.2;
  margin:0 0 .5em;
  color:var(--navy);
}
p{margin:0 0 1em; color:var(--text-dim);}
a{color:inherit; text-decoration:none;}
img{max-width:100%; display:block;}

/* Header / nav */
header.site{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:1rem 1.5rem;
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  background:rgba(250,248,244,.95);
  backdrop-filter:blur(6px);
  z-index:50;
}
.brand{display:flex; align-items:center; gap:.6rem;}
.brand img{height:44px; width:auto;}
nav.main a{
  margin-left:2rem;
  font-size:.92rem;
  font-weight:600;
  color:var(--navy);
  transition:color .15s ease;
  padding-bottom:2px;
  border-bottom:2px solid transparent;
}
nav.main a:hover, nav.main a.active{color:var(--orange); border-bottom-color:var(--orange);}
.nav-toggle{display:none; background:none; border:1px solid var(--line); color:var(--navy); padding:.4rem .6rem; border-radius:6px;}

/* Hero */
.hero{
  padding:3.5rem 1.5rem 2.5rem;
  max-width:1100px;
  margin:0 auto;
}
.eyebrow{
  font-family:'Poppins',sans-serif;
  font-size:.78rem;
  font-weight:700;
  letter-spacing:.06em;
  text-transform:uppercase;
  color:var(--orange);
  display:block;
  margin-bottom:1rem;
}
.hero h1{
  font-size:clamp(2rem,4.5vw,3.2rem);
  max-width:16ch;
}
.hero p.lead{
  max-width:58ch;
  font-size:1.1rem;
  color:var(--text-dim);
}
.hero-image{
  margin-top:2.25rem;
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:0 12px 30px -12px rgba(21,51,80,.25);
}
.hero-image img{width:100%; height:auto;}

/* Sections */
section{
  padding:3.5rem 1.5rem;
  max-width:1100px;
  margin:0 auto;
}
section.tight{padding-top:0;}
.section-head{max-width:64ch; margin-bottom:2.25rem;}
.section-head h2{font-size:clamp(1.6rem,3vw,2.1rem);}

/* Services grid */
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1.25rem;
}
.grid-3 a.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:1.75rem;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  min-height:180px;
  box-shadow:0 4px 16px -8px rgba(21,51,80,.10);
  transition:transform .15s ease, box-shadow .15s ease;
}
.grid-3 a.card:hover{transform:translateY(-3px); box-shadow:0 10px 24px -10px rgba(21,51,80,.2);}
.grid-3 .card-num{font-family:'Poppins',sans-serif; font-weight:700; color:var(--blue); font-size:.78rem; letter-spacing:.04em;}
.grid-3 .card h3{font-size:1.1rem; margin-top:.75rem;}
.grid-3 .card .arrow{color:var(--orange); font-weight:600; font-size:.88rem; margin-top:1rem;}

/* CTA band */
.cta-band{
  background:var(--navy);
}
.cta-band .inner{
  max-width:1100px; margin:0 auto; padding:3rem 1.5rem;
  display:flex; align-items:center; justify-content:space-between; gap:2rem; flex-wrap:wrap;
}
.cta-band h2, .cta-band p{color:#fff;}
.cta-band p{color:#C9D6E0;}
.btn{
  display:inline-block;
  background:var(--orange);
  color:#fff;
  font-weight:600;
  font-size:.92rem;
  padding:.9rem 1.75rem;
  border-radius:999px;
  border:none;
  cursor:pointer;
  transition:transform .12s ease, background .15s ease;
}
.btn:hover{background:#C6590C; transform:translateY(-1px);}
.btn.ghost{
  background:transparent;
  border:1px solid var(--line);
  color:var(--navy);
}
.btn.ghost:hover{border-color:var(--orange); color:var(--orange);}

/* Spec sheet table */
.spec-sheet{
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--panel);
  margin:2rem 0;
}
.spec-sheet .row{
  display:grid;
  grid-template-columns:220px 1fr;
  border-bottom:1px solid var(--line);
  font-size:.92rem;
}
.spec-sheet .row:last-child{border-bottom:none;}
.spec-sheet .row .k{
  font-family:'Poppins',sans-serif;
  font-weight:600;
  font-size:.82rem;
  color:var(--blue-dark);
  background:#F2F7FA;
  padding:.9rem 1rem;
  border-right:1px solid var(--line);
}
.spec-sheet .row .v{padding:.9rem 1rem; color:var(--navy);}

/* Prose block for about/service copy */
.prose{max-width:70ch;}
.prose p{color:var(--text-dim); font-size:1.02rem;}
.prose strong{color:var(--orange); font-weight:600;}

/* Service page nav (prev/next) */
.service-pager{
  display:flex; justify-content:space-between; gap:1rem; flex-wrap:wrap;
  border-top:1px solid var(--line); margin-top:2.5rem; padding-top:1.5rem;
}
.service-pager a{color:var(--blue-dark); font-weight:600; font-size:.9rem;}
.service-pager a:hover{color:var(--orange);}

/* Footer */
footer.site{
  border-top:1px solid var(--line);
  padding:2.5rem 1.5rem;
  max-width:1100px;
  margin:0 auto;
  color:var(--text-dim);
  font-size:.9rem;
}
footer.site strong{color:var(--navy);}
footer.site .badges{
  margin-top:1rem;
  font-size:.8rem;
  color:var(--blue-dark);
  font-weight:600;
  letter-spacing:.01em;
}
footer.site a{color:var(--blue-dark); text-decoration:underline; text-underline-offset:2px;}
footer.site a:hover{color:var(--orange);}

/* Contact form */
form.contact-form{max-width:60ch;}
form.contact-form label{
  display:block; font-family:'Poppins',sans-serif; font-weight:600; font-size:.82rem;
  color:var(--navy); margin:1.2rem 0 .4rem;
}
form.contact-form input, form.contact-form textarea{
  width:100%;
  background:var(--panel);
  border:1px solid var(--line);
  color:var(--navy);
  padding:.8rem .9rem;
  font-family:'Inter',sans-serif;
  font-size:.96rem;
  border-radius:8px;
}
form.contact-form input:focus, form.contact-form textarea:focus{
  outline:none; border-color:var(--blue);
}
form.contact-form button{margin-top:1.5rem;}
.form-note{font-size:.85rem; color:var(--text-dim); margin-top:1rem;}

/* FAQ accordion */
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  cursor:pointer;
  padding:1.25rem 0;
  font-family:'Poppins',sans-serif;
  font-weight:600;
  font-size:1.05rem;
  color:var(--navy);
  list-style:none;
  display:flex; justify-content:space-between; align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+"; color:var(--orange); font-size:1.4rem;}
.faq-item[open] summary::after{content:"–";}
.faq-item .faq-body{padding-bottom:1.5rem; color:var(--text-dim); font-size:.95rem;}
.faq-item .faq-body p{white-space:pre-line;}

@media (max-width:820px){
  .grid-3{grid-template-columns:1fr;}
  nav.main{
    display:none;
    position:absolute; top:100%; left:0; right:0;
    background:var(--bg); border-bottom:1px solid var(--line);
    flex-direction:column; padding:1rem 1.5rem;
  }
  nav.main.open{display:flex;}
  nav.main a{margin:0; padding:.6rem 0; border-bottom:1px solid var(--line);}
  .nav-toggle{display:block;}
  .spec-sheet .row{grid-template-columns:1fr;}
  .spec-sheet .row .k{border-right:none; border-bottom:1px solid var(--line);}
}