/* ======================
   Base Styles
   ====================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  background-color: #1f1f1f;
  margin: 0;
  padding: 0;
}

/* ======================
   Header & Navigation
   ====================== */
#main-heading {
  text-align: center;
  font-size: 50px;
  color: white;
  padding: 20px 0;
  margin: 0 0 20px 0;
  display: block;
  width: 100%;
  background-color: black;
}

.block-1 {
  text-align: center;
  padding: 0;
  margin: 20px auto;
  max-width: 100%;
  display: flex;
  justify-content: center;
}

.block-1 ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.block-1 li {
  display: inline-block;
  padding-right: 25px;
  font-size: 25px;
}

.block-1 a {
  text-decoration: none;
  color: lightgray;
}

.block-1 a:hover {
  color: black;
}

.block-1 a.active {
  color: white;
  border-bottom: 2px solid #4a90e2;
  padding-bottom: 2px;
}

/* ======================
   Main Content Blocks
   ====================== */
.block {
  display: flex;
  justify-content: center;
  background-image: url("Images/Background_image_1.jpg");
  background-size: 50%;
  background-repeat: repeat;
}

.block p {
  color: white;
  width: 80%;
  text-align: center;
  font-family: Impact, "Arial Narrow Bold", sans-serif;
  line-height: 1.6em;
  font-size: 20px;
}

/* ======================
   Products Section
   ====================== */
.block-2 h3 {
  color: white;
  font-size: 40px;
  text-align: center;
  background-image: url("Images/Background_image_2.jpg");
  margin: 0 0 10px 0;
  display: block;
  padding: 5px;
  background-size: 50%;
  background-repeat: repeat;
}

/* ======================
   Product Options & Content
   ====================== */
.options-container {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 20px auto;
  width: 80%;
}

.buttons-column {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 10%;
}

.option {
  padding: 10px;
  cursor: pointer;
  width: 100%;
  border: none;
  color: white;
  background-color: black;
  font-family: Impact, "Arial Narrow Bold", sans-serif;
  font-size: 20px;
  text-align: center;
}

/* ======================
   Content Box Styling
   ====================== */
.content-container {
  width: 70%;
  margin: 0 auto;
}

.content-box {
  color: white;
  padding: 20px;
  display: none;
  border: 3px solid #444;
  border-radius: 8px;
  min-height: 119px;
  font-family: "Segoe UI", Tahoma, Verdana, sans-serif;
  line-height: 1.6;
}

.content-box h3 {
  color: #4a90e2;
  margin-top: 0;
  border-bottom: 2px solid #444;
  background-image: none;
  background-color: #1f1f1f;
  padding-bottom: 10px;
}

.content-box h4 {
  color: #6aa84f;
  margin: 20px 0 10px 0;
}

.content-box h5 {
  color: #f1c40f;
  margin: 15px 0 5px 0;
  font-size: 1.1em;
}

.content-box p {
  margin: 10px 0;
}

.content-box p.lead {
  font-size: 1.1em;
  line-height: 1.7;
  color: #ecf0f1;
}

/* ======================
   Features Grid
   ====================== */
.content-box .features {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 15px;
  margin: 20px 0;
}

.content-box .feature {
  background: rgba(255, 255, 255, 0.05);
  padding: 12px;
  border-radius: 6px;
  border-left: 3px solid #4a90e2;
}

/* ======================
   Lists & CTAs
   ====================== */
.content-box ul {
  padding-left: 20px;
}

.content-box li {
  margin-bottom: 8px;
}

.content-box .cta {
  margin-top: 25px;
  padding: 12px 20px;
  background: #4a90e2;
  color: white;
  border-radius: 4px;
  text-align: center;
  font-weight: bold;
}

.download-link {
  text-decoration: none;
  color: white;
}

/* ======================
   Animations
   ====================== */
.content-box.active {
  display: block;
  animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ======================
   Contact Me
   ====================== */
.block-3 h3 {
  color: white;
  font-size: 40px;
  text-align: center;
  background-color: #003c5f;
  margin: 0 0 10px 0;
  display: block;
  width: 100%;
  padding: 5px;
  background-size: 50%;
}

.block-3 {
  background-color: #002b4d;
  padding: 20px 0;
  margin: 0;
  display: block;
}

.block-3 ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  justify-content: center;
}

.block-3 li {
  margin: 0;
  padding: 0;
  display: inline-block;
  padding-left: 25px;
}

.block-3 a {
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", Tahoma, Verdana, sans-serif;
  text-decoration: none;
  color: white;
  font-weight: bold;
  font-size: 18px;
}

.block-3 a:hover {
  color: lightblue;
}