/* style.css */

body {
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  text-align: center;
  background: #000;
  color: #f0f0f0;
}

article {
  max-width: 880px;
  margin: 0 auto;
  padding: 2em 1em;
}

h1, h2, h3 {
  margin-top: 1.2em;
  color: #66ccff;
}

p {
  font-size: 1.2em;
  max-width: 740px;
  margin: 1.5em auto;
}

.gallery {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 15px;
  margin: 2em auto;
  max-width: 960px;
}

.gallery img {
  max-width: 300px;
  width: 100%;
  border-radius: 8px;
  box-shadow: 0 0 15px rgba(102, 204, 255, 0.4);
  transition: transform 0.3s ease;
}

.gallery img:hover {
  transform: scale(1.05);
}

.cta-button {
  padding: 14px 28px;
  font-size: 1.1em;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  margin: 1.5em auto;
  transition: all 0.3s ease;
}

.toc {
  list-style: none;
  padding: 0;
  margin: 2em auto;
  text-align: center;
}

.toc li a {
  color: #66ccff;
  text-decoration: none;
}

.table-responsive {
  overflow-x: auto;
}

.table-responsive table {
  width: 100%;
  border-collapse: collapse;
  margin: 2em 0;
}

.table-responsive th, .table-responsive td {
  border: 1px solid #666;
  padding: 10px;
  text-align: left;
  color: #fff;
}

.table-responsive th {
  background-color: #222;
}

ul {
  max-width: 740px;
  margin: 1.5em auto;
  text-align: left;
}

ul li {
  padding: 4px 0;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin: 1.5em 0;
}

.btn-demo {
  background-color: #ffe680;
  color: #000;
}

.btn-demo:hover {
  background-color: #ffcc00;
  color: #000;
}

.btn-money {
  background-color: #ff3b3f;
  color: #fff;
}

.btn-money:hover {
  background-color: #cc2c31;
  color: #fff;
}

header img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  margin: 0 auto;
}