:root {
  --red: #cc0505;
  --black: #111;
  --white: #fff;
  --grey-light: #f2f2f2;
  --grey-dark: #555;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: "Roboto", sans-serif; color: var(--black); background: var(--white); }
a { text-decoration: none; color: inherit; }

/* Top Bar */
.top-bar {
  background: var(--grey-dark);
  color: var(--white);
  font-size: 0.9rem;
  padding: 0.6rem 1rem;
}
.top-bar a { color: var(--white); font-weight: 600; }
.top-bar span { color: var(--red); font-weight: 700; }
.top-inner {
  display: flex;
  flex-wrap: wrap;
  gap:0.7rem;
  justify-content: space-between;
  max-width:1200px;
  margin:auto;
  padding:0 1rem;
}

/* Header */
header {
  position: sticky;
  top: 0;
  background: var(--white);
  border-bottom: 1px solid #ddd;
  z-index: 2000;
}
.header-inner {
  max-width: 1200px;
  margin: auto;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo img { max-height: 50px; }

/* Navigation */
nav ul {
  list-style: none;
  display: flex;
  gap: 1rem;
}
nav a {
  font-weight: 500;
  color: var(--grey-dark);
  position: relative;
}
nav a:hover { color: var(--red); }

/* Arrows for submenu */
.arrow {
  display: inline-block;
  transition: transform 0.3s ease;
}

/* Desktop submenu */
@media (min-width: 769px) {
  .has-submenu {
    position: relative;
  }

  .has-submenu .submenu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    opacity: 0;
    display: flex;
    flex-direction: column;
    min-width: 180px;
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 8px;
    box-shadow: 0 8px 16px rgba(0,0,0,0.2);
    padding: 0.3rem 0;
    gap: 0.2rem;
    z-index: 1500;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }

  /* Open submenu on hover of parent LI (not just link) */
  .has-submenu:hover .submenu {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
    pointer-events: auto;
  }

  .has-submenu .submenu li a {
    padding: 0.5rem 1rem;
    margin: 0;
    font-weight: 500;
    color: var(--grey-dark);
    border-radius: 4px;
    display: block;
    transition: background 0.3s ease, color 0.3s ease;
  }

  .has-submenu .submenu li a:hover {
    background: var(--red);
    color: #fff;
  }

  /* Arrow rotation on hover */
  .has-submenu:hover > a .arrow {
    transform: rotate(270deg);
  }
}

/* Hamburger */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
}
.menu-toggle span {
  width: 26px;
  height: 3px;
  background: #111;
  display: block;
  transition: all 0.3s ease;
}
/* Hamburger animation for X */
.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile menu */
@media (max-width: 768px) {
  .menu-toggle { display: flex; }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: #fff;
    border-top: 1px solid #ddd;
    z-index: 2000;
    max-height: 80vh;
    overflow-y: auto;
    transform: translateY(-20px);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }
  .main-nav.open { transform: translateY(0); opacity: 1; visibility: visible; }

  .main-nav ul {
    flex-direction: column !important;
    padding: 0;
    margin: 0;
    gap: 0.2rem;
  }
  .main-nav li { border-bottom: 1px solid #eee; }
  .main-nav li a {
    display: block;
    padding: 0.6rem 1rem;
    font-size: 1rem;
    font-weight: 500;
    color: var(--grey-dark);
  }

  .has-submenu { position: relative; }

  .has-submenu .submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, opacity 0.3s ease;
    flex-direction: column;
    padding-left: 0.5rem;
    gap: 0.2rem;
    opacity: 0;
    visibility: hidden;
  }
  .has-submenu.open .submenu {
    max-height: 500px;
    opacity: 1;
    visibility: visible;
  }

  /* Mobile arrow rotation */
  .has-submenu > a .arrow {
    display: inline-block;
    transition: transform 0.3s ease;
  }
  .has-submenu.open > a .arrow {
    transform: rotate(270deg);
  }
}

/* Hero */
.hero {
  background-image:url("https://waveformaerials.co.uk/hello.jpg?auto=format&fit=crop&w=1600&q=80");
  background-size:cover;
  background-position:center;
  background-color: rgba(0,0,0,0.7);
  background-blend-mode: multiply;
  color:#fff;
  padding:4rem 1rem;
  max-width:1200px;
  margin:0 auto;
}

/* Main grid: content + sidebar */
.main-grid {
  display: grid;
  grid-template-columns: 1fr 300px;
  gap:2rem;
  max-width:1200px;
  margin:0 auto;
  padding:2rem 1rem;
}
@media(max-width:768px){
  .main-grid {
    grid-template-columns: 1fr;
  }
  .sidebar {
    order: 2; /* move below main content on mobile */
    margin-top:2rem;
  }
}

/* Sidebar */
.sidebar {
  border:1px solid #ddd;
  padding:1rem;
  background: var(--grey-light);
text-align: center;
}
.sidebar h3 {
  font-family:'Montserrat',sans-serif;
  margin-bottom:0.5rem;
text-align: left;
}
.sidebar a {
  display:block;
  margin-bottom:0.5rem;
  color:var(--red);
  font-weight:500;
}

/* Overview */
.overview { padding:0; }
.overview-inner {
  display:grid;
  grid-template-columns:1.2fr 1fr;
  gap:2rem;
}
.overview h2 { font-family:'Montserrat',sans-serif; margin-bottom:1rem; }
.overview p { color:var(--grey-dark); line-height:1.6; margin-bottom:1rem; }
.overview-highlight { background:var(--grey-light); padding:2rem; border-left:5px solid var(--red); }
@media(max-width:768px){
  .overview-inner{grid-template-columns:1fr; text-align:center;}
  .overview-highlight{text-align:left;}
}

/* Services */
.section { padding:3rem 0; }
.section.grey { background:var(--grey-light); }
.section.grey h3 {
  font-family:'Montserrat',sans-serif;
  margin-bottom:0.5rem;
text-align: left;
}

.services-grid {
  display:grid;
  gap:2rem;
  grid-template-columns:repeat(auto-fit, minmax(250px,1fr));
}
.service-wrapper { display:flex; flex-direction:column; gap:0.8rem; }
.service-box {
  min-height:150px;
  padding:1.8rem;
  border-left:4px solid var(--red);
  background-size:cover;
  background-position:center;
  position:relative;
}
.service-box::before {
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(to bottom, rgba(255,255,255,0.7), rgba(255,255,255,0.9));
}
.service-box h3, .service-box p { position:relative; padding:0.3rem 0.5rem; border-radius:4px; }
.service-description { text-align:center; color:var(--grey-dark); }

/* Reviews Section */
.reviews { background: var(--grey-light); padding: 3rem 1rem; text-align: center; }
.reviews-inner { max-width: 1200px; margin:auto; }
.reviews h2 { font-family: 'Montserrat', sans-serif; margin-bottom: 2rem; }
.review-list { display:grid; gap:1.5rem; grid-template-columns:repeat(auto-fit,minmax(250px,1fr)); }
.review { background:#fff; padding:1.5rem; border-radius:8px; box-shadow:0 4px 12px rgba(0,0,0,0.1); }
.review p { font-style:italic; margin-bottom:1rem; }
.review span { font-weight:600; color:var(--red); }

/* Footer */
footer { background:#111; color:#fff; padding:2rem 1rem; }
.footer-inner { max-width:1200px; margin:auto; display:flex; justify-content:space-between; flex-wrap:wrap; }

/* Mobile Call Button */
.mobile-call { position: fixed; bottom: 1rem; left: 50%; transform: translateX(-50%); z-index: 3000; transition: transform 0.3s ease; }
.mobile-call.hide { transform: translateX(-50%) translateY(120%); }
.mobile-call a { background: var(--red); color: #fff; font-weight:700; padding:0.9rem 1.6rem; border-radius:50px; font-size:1.1rem; box-shadow:0 6px 12px rgba(0,0,0,0.2); }
@media (min-width:769px){ .mobile-call { display:none; } }