body {
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", sans-serif;
  color: #f0f0f0;
  background-color: #111;
}

.hero {
  position: relative;
  min-height: 100vh;
  background: url("assets/tank_bg.jpg") center/cover no-repeat;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.overlay {
  position: absolute;
  width: 100%;
  height: 100%;
  background-color: rgba(15, 15, 15, 0.85);
  top: 0;
  left: 0;
}

.content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  padding: 20px;
  margin: 0 auto;
}

h1 {
  font-size: 3em;
  margin: 0.3em 0 0.1em;
  color: #f5b942;
}

.subtitle {
  font-size: 2em;
  color: #f5b942;
  margin-bottom: 1em;
}

.preview {
  width: 150px;
  height: auto;
  margin: 20px auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(245, 185, 66, 0.4);
}

.features {
  margin-top: 5px;
}

.features h2 {
  font-size: 1.8em;
  color: #f5b942;
  margin-bottom: 2px;
  text-align: center;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
  margin-top: 25px;
  padding: 0 10px;
}

@media (min-width: 600px) {
  .features-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.feature-card {
  background: rgba(255, 255, 255, 0.05);
  border-left: 4px solid #f5b942;
  padding: 14px 20px;
  border-radius: 6px;
  color: #ddd;
  font-size: 1.05em;
  transition: transform 0.2s, background 0.3s;
  display: flex;
  align-items: center;
  gap: 10px;
}

.feature-card:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateX(4px);
  border-left-color: #ffaa00;
}
.feature {
  background: rgba(255, 255, 255, 0.05);
  border-left: 4px solid #f5b942;
  padding: 14px 20px;
  border-radius: 6px;
  color: #ddd;
  font-size: 1.05em;
  transition: transform 0.2s, background 0.3s;
  display: flex;
  align-items: center;
  gap: 10px;
}

.feature:hover {
  background: rgba(255, 255, 255, 0.08);
  transform: translateX(4px);
  border-left-color: #ffaa00;
}
.purchase-form {
  margin: 30px auto;
  max-width: 400px;
  text-align: left;
  background: rgba(255, 255, 255, 0.03);
  padding: 20px;
  border-radius: 6px;
  box-shadow: 0 0 5px rgba(255, 255, 255, 0.05);
}

.form-group {
  margin-bottom: 15px;
}

.form-group label {
  display: block;
  font-weight: bold;
  margin-bottom: 10px;
  color: #f5b942;
  font-size: 1.3em;
  text-align: center;
  text-shadow: 0 0 4px rgba(245, 185, 66, 0.4);
}

input[type="email"] {
  width: 100%;
  padding: 10px;
  font-size: 1em;
  border: none;
  border-radius: 4px;
  background-color: #222;
  color: #fff;
  box-shadow: inset 0 0 4px rgba(255, 255, 255, 0.1);
}

input[type="email"]::placeholder {
  color: #aaa;
}

.license-options label {
  display: block;
  margin: 8px 0;
  font-size: 1em;
  cursor: pointer;
}

.license-options input[type="radio"] {
  margin-right: 10px;
}

.buy-section {
  text-align: center;
  margin-top: 40px;
}

#buyButton {
  padding: 15px 35px;
  font-size: 1.2em;
  background-color: #f5b942;
  border: none;
  border-radius: 6px;
  color: #111;
  cursor: pointer;
  transition: background-color 0.3s, transform 0.2s;
}

#buyButton:hover {
  background-color: #ffaa00;
  transform: scale(1.05);
}

#statusText {
  margin-top: 15px;
  color: #88ff88;
  font-weight: bold;
}

.author-contact {
  margin: 60px auto 30px;
  max-width: 600px;
  text-align: center;
  background: rgba(255, 255, 255, 0.03);
  padding: 20px;
  border-radius: 8px;
  border-top: 2px solid #f5b942;
  box-shadow: 0 0 8px rgba(245, 185, 66, 0.1);
}

.author-contact h3 {
  margin-top: 0;
  color: #f5b942;
  font-size: 1.5em;
  margin-bottom: 10px;
}

.author-contact p {
  margin: 6px 0;
  font-size: 1.1em;
  color: #ddd;
}

.author-contact a {
  color: #ffaa00;
  text-decoration: none;
}

.author-contact a:hover {
  text-decoration: underline;
}
.copy-email {
  cursor: pointer;
  color: #ffaa00;
  font-weight: bold;
  text-decoration: underline;
}

.copy-email:hover {
  color: #ffc107;
}
.copy-link {
  cursor: pointer;
  color: #ffaa00;
  font-weight: bold;
  text-decoration: none;
  transition: color 0.2s, text-decoration 0.2s;
}

.copy-link:hover {
  text-decoration: underline;
  color: #ffd35a;
}
.form-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-top: 20px;
}

.form-label {
  font-size: 1.2em;
  margin-bottom: 8px;
  color: #f0f0f0;
}

.form-input {
  width: 80%;
  max-width: 400px;
  padding: 12px 16px;
  border-radius: 6px;
  border: none;
  font-size: 1em;
  background-color: #1e1e1e;
  color: #fff;
  outline: none;
  box-shadow: 0 0 5px rgba(245, 185, 66, 0.3);
  transition: box-shadow 0.3s;
}

.form-input:focus {
  box-shadow: 0 0 10px rgba(245, 185, 66, 0.7);
}
.download-button {
  display: inline-block;
  padding: 14px 28px;
  background-color: #28a745;
  color: white;
  text-decoration: none;
  font-size: 1.1em;
  border-radius: 6px;
  transition: background-color 0.3s ease;
}
.download-button:hover {
  background-color: #218838;
}
.features-video-wrapper {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 40px;
  margin: 60px auto;
  max-width: 1300px;
  padding: 0 20px;
}

.features {
  flex: 1 1 500px;
}

.video-demo {
  flex: 1 1 500px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.video-demo h2 {
  color: #f5b942;
  font-size: 1.8em;
  margin-bottom: 20px;
}

.local-video {
  width: 100%;
  max-width: 1000px;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
}

.download-button {
  display: inline-block;
  padding: 50px 100px; /* увеличенные отступы по вертикали и горизонтали */
  background-color: #28a745;
  color: white;
  text-decoration: none;
  font-size: 1.4em; /* увеличенный размер текста */
  border-radius: 8px; /* немного более скругленные углы */
  transition: background-color 0.3s ease, transform 0.2s ease;
}

.download-button:hover {
  background-color: #218838;
  transform: scale(1.05); /* плавное увеличение при наведении */
}

.video-preview {
    position: fixed;
    z-index: 9999;
    width: 300px;
    height: auto;
    pointer-events: none;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
    transition: opacity 0.2s ease-in-out;
    opacity: 0;
}

.video-preview video {
    width: 100%;
    height: auto;
    border-radius: 10px;
}
.hover-video {
  position: fixed;
  display: none;
  width: 640px;
  height: auto;
  z-index: 10000;
  pointer-events: none;
  border: 2px solid #ffaa00;
  border-radius: 8px;
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.3);
  background-color: #000;
}