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/* IMPORTS & CSS VARIABLES                                                */
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@import url('https://fonts.googleapis.com/css2?family=Open+Sans:wght@400;600&display=swap');

:root {
  --color-primary:   #737373;
  --color-secondary: #2e9900;
  --color-accent:    #242424;
  --font-base:       'Open Sans', sans-serif;
  --spacing:         1rem;
}

/*──────────────────────────────────────────────────────────────────────────*/
/* RESET + BASE STYLES                                                     */
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* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  margin: 0;
  font-family: var(--font-base);
  line-height: 1.6;
  color: #333;
  background:
    linear-gradient(rgba(255,255,255,0.8), rgba(255,255,255,0.8)),
    url('/images/solar.jpeg') no-repeat center center fixed;
  background-size: cover;
}

a {
  text-decoration: none;
  color: inherit;
}

/*──────────────────────────────────────────────────────────────────────────*/
/* HEADER / NAVIGATION – DESKTOP                                           */
/*──────────────────────────────────────────────────────────────────────────*/
header {
  position: sticky;
  top: 0;
  background: #fff;
  z-index: 1000;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1000px;
  margin: auto;
  padding: var(--spacing);
}

.logo img {
  height: 80px;
}

#google_translate_element {
  margin-left: var(--spacing);
}

/* Base hamburger – hidden on desktop */
.hamburger {
  display: none;
  position: absolute;
  top: var(--spacing);
  right: var(--spacing);
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: #333;
  z-index: 2000;
}

.nav-menu {
  display: flex;
  gap: var(--spacing);
  list-style: none;
}

.nav-menu a {
  display: block;
  padding: 0.5rem var(--spacing);
  color: #333;
  font-weight: 600;
  transition: color 0.3s;
}

.nav-menu a:hover {
  color: var(--color-accent);
}

.nav-menu a.btn-primary {
  background: var(--color-accent) !important;
  color: #fff !important;
}

/* Desktop dropdown */
.dropdown {
  position: relative;
}

.dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  list-style: none;
  padding: var(--spacing) 0;
  margin: 0;
  min-width: 200px;
  border-radius: 4px;
  z-index: 1000;
}

.dropdown:hover > .dropdown-menu {
  display: block;
}

/* Hide Back button on desktop */
.dropdown-menu .back {
  display: none !important;
}

/* Caret + hover underline */
.nav-menu .dropdown-toggle::after {
  content: "▾";
  margin-left: 0.25rem;
  font-size: 0.7em;
  transition: transform 0.3s ease;
}

.dropdown:hover > .dropdown-toggle::after {
  transform: rotate(180deg);
}

.nav-menu a:hover,
.dropdown-menu a:hover {
  text-decoration: underline;
}

/*──────────────────────────────────────────────────────────────────────────*/
/* MOBILE NAVIGATION – ≤768px                                                */
/*──────────────────────────────────────────────────────────────────────────*/
@media (max-width: 768px) {
  /* Show & center the hamburger */
  .hamburger {
    display: block;
    left: 50%;
    right: auto;
    transform: translateX(-50%);
  }

  /* Main nav slides in from the left */
  .nav-menu {
    position: fixed;
    top: 0;
    left: 0;
    width: 75%;
    max-width: 300px;
    height: 100vh;
    background: rgba(255,255,255,0.95);
    flex-direction: column;
    padding-top: calc(80px + var(--spacing));
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    z-index: 1500;
  }

  .nav-menu.open {
    transform: translateX(0);
  }

  .nav-menu a {
    width: 100%;
    padding: 1rem var(--spacing);
    border-bottom: 1px solid #eee;
  }

  /* Submenus are full-view panels sliding in from the right */
  .dropdown-menu {
    display: block; /* override desktop hide */
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    height: 100vh;
    background: rgba(255,255,255,0.97);
    padding-top: calc(80px + var(--spacing));
    transform: translateX(100%);
    transition: transform 0.3s ease;
    overflow-y: auto;
    z-index: 1600;
  }

  .dropdown.open > .dropdown-menu {
    transform: translateX(0);
  }

  /* Submenu “Back” Button (Mobile Only) */
  .dropdown-menu .back {
    display: block !important;
    position: sticky;
    top: 0;
    width: 100%;
    background: #fff;
    z-index: 1700;
    border-bottom: 1px solid #eee;
    list-style: none;
  }

  .dropdown-menu .back-btn {
    display: block;
    padding: 1rem var(--spacing);
    color: var(--color-accent);
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
  }

  .dropdown-menu .back-btn:hover {
    background: rgba(0,0,0,0.05);
    text-decoration: underline;
  }
}

/*──────────────────────────────────────────────────────────────────────────*/
/* HERO                                                                   */
/*──────────────────────────────────────────────────────────────────────────*/
.hero {
  height: 40vh;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 var(--spacing);
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.125rem;
  margin-bottom: 1.5rem;
}

.hero a.btn-secondary {
  margin-top: 1rem;
}

/*──────────────────────────────────────────────────────────────────────────*/
/* SECTIONS & CONTAINERS                                                   */
/*──────────────────────────────────────────────────────────────────────────*/
section {
  padding: 2rem 0;
  border-bottom: 1px solid #e0e0e0;
}

section:last-of-type {
  border-bottom: none;
}

.container {
  max-width: 1000px;
  margin: auto;
  padding: 0 var(--spacing);
}

h2 {
  margin-bottom: var(--spacing);
  text-transform: uppercase;
  color: var(--color-accent);
}

.subtitle {
  font-style: italic;
  margin-bottom: var(--spacing);
  display: block;
  color: var(--color-primary);
}

/*──────────────────────────────────────────────────────────────────────────*/
/* BOX STYLING                                                             */
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.box {
  background: rgba(255,255,255,0.9);
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: var(--spacing);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.box:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 6px 16px rgba(0,0,0,0.15);
}

.box h2 {
  margin-top: 0;
  color: var(--color-accent);
}

.box p {
  margin-bottom: var(--spacing);
  color: #333;
}

/*──────────────────────────────────────────────────────────────────────────*/
/* EXPERTISE LIST ITEMS AS BOXES                                           */
/*──────────────────────────────────────────────────────────────────────────*/
.expertise-list li {
  background: rgba(255,255,255,0.9);
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: var(--spacing);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.expertise-list li:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 6px 16px rgba(0,0,0,0.15);
}

.expertise-list h3 {
  margin-top: 0;
  color: var(--color-accent);
}

.expertise-list p {
  margin-top: 0.5rem;
  color: #333;
}

/*──────────────────────────────────────────────────────────────────────────*/
/* GRID & ITEMS                                                            */
/*──────────────────────────────────────────────────────────────────────────*/
.grid {
  display: grid;
  gap: var(--spacing);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.item {
  background: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  overflow: hidden;
  text-align: center;
  padding: var(--spacing);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.item:hover {
  transform: translateY(-5px) scale(1.02);
  box-shadow: 0 6px 16px rgba(0,0,0,0.15);
}

/*──────────────────────────────────────────────────────────────────────────*/
/* BUTTONS                                                                 */
/*──────────────────────────────────────────────────────────────────────────*/
.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: 4px;
  font-weight: 600;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  text-align: center;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  border: none;
}

.btn-secondary {
  background: #fff;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn-primary:hover,
.btn-secondary:hover {
  transform: translateY(-3px);
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

/*──────────────────────────────────────────────────────────────────────────*/
/* FOOTER                                                                 */
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footer {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  padding: var(--spacing) 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing);
}

.footer-grid h4,
.newsletter h4 {
  color: #fff !important;
}

.socials {
  display: flex;
  gap: var(--spacing);
  margin-top: var(--spacing);
}

.socials a {
  color: #fff;
  font-size: 1.25rem;
}