:root {
  --font-size-base: 1rem;
  --font-size-large: 1.5rem;
  --font-property-name: 2rem;
  --font-size-big-headings: 2.5rem;
  --font-size-biggest-headings: 4rem;
  --font-size-small: 0.875rem;
  --button_roundness: 0.5rem;
  --property-roundness: 1rem;
  --spacing-base: 1rem;
  --spacing-large: 2rem;
  --spacing-extra-large: 3rem;
  --spacing-small: 0.5rem;
  --spacing-topic: 5rem;
  --primary-color: #333;
  --secondary-color: #fff;
  --light-blue: #d2d2d2;
  --base-color: #3369ff;
  --button-color: #3369ff;
  --button-hover-color: #1b40a3;
  --small-icon-size: 4rem;
  --button-size: 2.5rem;
  --extra-small-icon-size: 2rem;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
  font-size: var(--font-size-base);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #333;
  padding: 10px 20px;
  z-index: 1; /* Ensure nav bar stays on top */
  position: relative;
}

.logo {
  display: flex;
  align-items: center;
}

.logo img {
  height: 40px;
  margin-right: 10px;
}

.logo span {
  color: #fff;
  font-size: 1.5em;
  font-weight: bold;
}

.nav-options {
  list-style: none;
  display: flex;
  margin: 0;
  padding: 0;
}

.nav-options li {
  margin: 0 15px;
}

.nav-options a {
  color: #fff;
  text-decoration: none;
  font-size: 1em;
}

.nav-options a:hover {
  text-decoration: underline;
}

.login-btn {
  background-color: var(--button-color);
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: var(--button_roundness);
  cursor: pointer;
  font-size: 1rem;
}

.login-btn:hover {
  background-color: var(--button-hover-color);
}

.con_parent {
  display: flex;
  flex-direction: column;
}

.top_banner {
  position: relative;
  overflow: hidden;
  background-image: url(images/banners.png);
  background-size: cover;
  background-position: center;
}

.ll_top_banner {
  margin: 6%;
  display: flex;
  flex-direction: row;
}

.ll_top_banner_text {
  display: flex;
  flex-direction: column;
  width: 50%;
}

.ll_top_banner_text h1 {
  color: #000;
  font-size: var(--font-size-biggest-headings);
  margin-bottom: 0;
}

.ll_top_banner_text h2 {
  color: var(--primary-color);
  font-size: var(--font-size-large);
  margin-top: 0;
  margin-bottom: var(--spacing-base);
}

.ll_top_banner_text p {
  color: var(--primary-color);
  font-size: var(--font-size-small);
  margin-bottom: var(--spacing-base);
}

.ll_top_banner_text button {
  background-color: var(--button-color);
  border-radius: var(--button_roundness);
  color: white;
  border: none;
  margin-top: var(--spacing-base);
  width: fit-content;
  padding: 10px 20px;
  padding-left: 4rem;
  padding-right: 4rem;
  cursor: pointer;
  font-size: 1em;
}

.ll_top_banner_text button:hover {
  background-color: var(--button-hover-color);
}

.tv_our_projects {
  text-align: center;
  font-size: var(--font-size-big-headings);
  margin-top: var(--spacing-topic);
}

.grd_our_projects {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-base);
  margin: auto;
  width: 80%;
}

.project_vertical_row {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #fff;
  display: flex;
  flex-direction: column;
  align-items: center;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.project_vertical_row img {
  width: 100%;
  height: 70%;
  object-fit: cover;
  display: block;
}

.project_vertical_row div {
  width: 100%;
  height: 30%;
  margin: 0;
  font-size: var(--font-size-large);
  color: var(--base-color);
}

.project_vertical_row div h1 {
  margin: 0;
  margin-left: var(--spacing-small);
  margin-right: var(--spacing-small);
  margin-top: var(--spacing-small);
  font-size: var(--font-size-large);
  color: var(--base-color);
  margin-top: var(--spacing-base);
}

.project_vertical_row div p {
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: var(--spacing-small);
  margin-left: var(--spacing-small);
  margin-right: var(--spacing-small);
  font-size: var(--font-size-small);
  color: var(--primary-color);
  margin-top: var(--spacing-small);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.project_vertical_row:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.tv_what_we_offer {
  text-align: center;
  font-size: var(--font-size-big-headings);
  margin-top: var(--spacing-topic);
}

.ll_what_we_offer {
  display: grid;
  gap: var(--spacing-base);
  align-items: center;
  width: 80%;
  margin: auto;
  grid-template-columns: repeat(2, 1fr);
}

.ll_what_we_offer_row {
  padding-left: var(--spacing-small);
  padding-right: var(--spacing-small);
  display: flex;
  margin-left: var(--spacing-large);
  margin-right: var(--spacing-large);
  flex-direction: row;
  margin-top: 1rem;
  align-items: center;
  justify-content: space-between;
}

.ll_what_we_offer_row img {
  width: var(--small-icon-size);
  height: auto;
  display: block;
}

.ll_what_we_offer_row div {
  display: flex;
  padding: var(--spacing-base);
  width: 100%;
  flex-direction: column;
}

.ll_what_we_offer_row h1 {
  margin: 0;
  font-size: var(--font-size-large);
  color: var(--base-color);
}

.ll_what_we_offer_row p {
  margin: 0;
  margin-top: var(--spacing-small);
  font-size: var(--font-size-small);
  color: var(--primary-color);
}

.tv_our_infrastructure {
  text-align: center;
  font-size: var(--font-size-big-headings);
  margin-top: var(--spacing-topic);
}

.grd_our_infrastructure {
  display: grid;
  gap: var(--spacing-base);
  margin: auto;
  width: 80%;
  align-items: center;
  grid-template-columns: repeat(3, 1fr);
}

.grd_our_infrastructure div {
  display: flex;
  flex-direction: column;
  height: 100%;
  align-items: center;
}

.grd_our_infrastructure img {
  border-radius: 5rem;
  background: var(--light-blue);
  padding: var(--spacing-base);
  width: var(--small-icon-size);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
  height: var(--small-icon-size);
  display: block;
}

.grd_our_infrastructure div div {
  display: flex;
  margin-top: -3rem;
  z-index: -1;
  padding: var(--spacing-base);
  padding-top: var(--spacing-large);
  flex-direction: column;
  background: #d2d2d2;
  border-radius: 1rem;
  align-items: center;
}

.grd_our_infrastructure div h1 {
  margin: 0;
  text-align: center;
  margin-top: var(--spacing-large);
  font-size: var(--font-size-large);
  color: var(--primary-color);
}

.grd_our_infrastructure div p {
  margin: 0;
  text-align: center;
  margin-top: var(--spacing-small);
  font-size: var(--font-size-small);
  color: var(--primary-color);
}

.ll_connect_with_us {
  display: flex;
  background: #3369ff;
  flex-direction: column;
  align-items: center;
  margin-top: var(--spacing-topic);
}

.ll_connect_with_us h1 {
  text-align: center;
  font-size: var(--font-size-big-headings);
  color: #fff;
  margin: 0;
  margin-top: var(--spacing-topic);
}

.ll_connect_with_us p {
  text-align: center;
  color: #fff;
  margin-top: var(--spacing-base);
}

.ll_connect_with_us div {
  display: flex;
  flex-direction: row;
  margin-top: var(--spacing-base);
}

.ll_connect_with_us div div {
  display: flex;
  margin: var(--spacing-large);
  align-items: center;
  flex-direction: column;
  margin-top: var(--spacing-base);
}

.ll_connect_with_us div div img {
  width: var(--small-icon-size);
  filter: invert(100%) sepia(100%) saturate(500%) hue-rotate(180deg);
  height: auto;
  display: block;
}

.ll_connect_with_us div div h1 {
  margin: 0;
  font-size: var(--font-size-large);
  color: var(--secondary-color);
}

.ll_images {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-base);
  margin: auto;
  margin-top: var(--spacing-topic);
  width: 80%;
}

.ll_images img {
  width: 100%;
  height: auto;
  display: block;
}

.ll_footer {
  padding-top: var(--spacing-large);
  padding-bottom: var(--spacing-topic);
  display: flex;
  background: var(--primary-color);
  flex-direction: row;
  justify-content: space-between;
  align-items: start;
  margin-top: var(--spacing-topic);
}

.ll_about_us {
  width: 40%;
  align-items: flex-start;
  display: flex;
  flex-direction: column;
  margin: auto;
}

.ll_about_us h1 {
  color: #fff;
  margin: 0;
  margin-top: var(--spacing-base);
}

.ll_about_us p {
  color: #fff;
  margin-top: var(--spacing-base);
}

.ll_contact_us {
  width: 40%;
  align-items: flex-start;
  display: flex;
  flex-direction: column;
  margin: auto;
}

.ll_contact_us h1 {
  color: #fff;
  margin: 0;
  margin-top: var(--spacing-base);
}

.ll_contact_us div {
  display: flex;
  align-items: center;
  flex-direction: row;
  margin-top: var(--spacing-base);
}

.ll_contact_us div img {
  width: var(--extra-small-icon-size);
  filter: invert(100%) sepia(100%) saturate(500%) hue-rotate(180deg);
  height: auto;
  display: block;
}

.ll_contact_us div p1 {
  margin-left: var(--spacing-base);
  font-size: var(--font-size-small);
  color: #fff;
  margin-top: 0;
  display: block;
}

.tv_footer_text {
  color: #fff;
  margin: 0;
  background: var(--base-color);
  text-align: center;
  padding: var(--spacing-base);
}

.whatsapp-button {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
}

.whatsapp-button img {
  width: var(--font-size-biggest-headings);
  height: var(--font-size-biggest-headings);
  border-radius: var(--button_roundness);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.whatsapp-button img:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

/* Responsive Design for Mobile */
@media screen and (max-width: 1080px) and (hover: none) and (pointer: coarse) {
  html {
    font-size: 32px;
  }
  /* Navbar */
  nav {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
  
  .nav-options {
    flex-direction: row;
    flex-wrap: wrap;
    width: 100%;
    font-size: 1.2rem;
    padding: 1rem 0;
    justify-content: space-between;
  }
  
  .nav-options li {
    margin: 5px 0;
    flex: 1 1 30%;
  }

  /* Banner Section */
  .ll_top_banner {
    flex-direction: column;
    margin: 5%;
    text-align: center;
  }

  .ll_top_banner_text {
    width: 60%;
    align-items: start;
  }

  .ll_top_banner_text h1 {
    text-align: start;
    font-size: var(--font-size-big-headings);
  }

  .ll_top_banner_text h2 {
    text-align: start;
    font-size: var(--font-size-large);
  }

  .ll_top_banner_text p {
    text-align: start;
  }

  .ll_top_banner_text button {
    width: 100%;
    padding-left: 2rem;
    padding-right: 2rem;
  }

  /* Projects Grid */
  .grd_our_projects {
    grid-template-columns: 1fr;
    width: 90%;
  }

  /* Project Cards */
  .project_vertical_row {
    aspect-ratio: 4 / 3;
  }

  .project_vertical_row img {
    height: 60%;
  }

  .project_vertical_row div {
    height: 40%;
  }

  /* What We Offer */
  .ll_what_we_offer {
    grid-template-columns: 1fr;
    width: 90%;
  }

  /* Infrastructure Grid */
  .grd_our_infrastructure {
    grid-template-columns: 1fr;
    width: 90%;
  }

  /* Contact Section */
  .ll_connect_with_us div {
    flex-direction: column;
    align-items: center;
  }

  .ll_connect_with_us div div {
    margin: var(--spacing-base) 0;
  }

  /* Image Grid */
  .ll_images {
    grid-template-columns: 1fr;
    width: 90%;
  }

  /* Footer */
  .ll_footer {
    flex-direction: column;
    text-align: center;
    align-items: center;
  }

  .ll_about_us,
  .ll_contact_us {
    width: 90%;
    margin-bottom: var(--spacing-large);
  }

  .ll_contact_us div {
    justify-content: center;
  }

  /* WhatsApp Button */
  .whatsapp-button {
    bottom: 15px;
    right: 15px;
  }
}