:root {
  --primary-color: #2fae95;
  --primary-hover: #2b9e89;
  --text-color: #2b2d42;
  --light-gray: #f8f9fa;
  --border-color: #e9ecef;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  --transition: all 0.3s ease;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
a {
  text-decoration: none;
  color: inherit;
}

body {
  font-family: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: #f5f7ff;
  min-height: 100vh;
  color: var(--text-color);
}
nav {
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  padding: 20px;
}
nav .tital {
  text-align: center;
  font-size: 2rem;
  font-weight: bold;
  color: #2b9e89;
}
.power {
  font-size: 10px;
  text-align: center;
  margin-left: 100px;
}
.power span {
  font-style: italic;
  color: var(--primary-hover);
}

.main {
  min-height: 80vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}
.container {
  display: flex;
  gap: 12px;
  background: white;
  padding: 24px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  width: 100%;
  max-width: 600px;
  transition: var(--transition);
}
input {
  flex: 1;
  padding: 12px 16px;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  font-size: 16px;
  transition: var(--transition);
  outline: none;
}

input:focus {
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
}

input::placeholder {
  color: #adb5bd;
}

.year {
  max-width: 120px;
}

.go-link {
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 0 24px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.go-link:hover {
  background-color: var(--primary-hover);
  transform: translateY(-2px);
}

.go-link:active {
  transform: translateY(0);
}
.container-policy {
  width: 80%;
  max-width: 800px;
  margin: 0 auto;
  margin-bottom: 50px;
}
.container-policy .data-update {
  text-align: end;
}
.container-policy h2 {
  margin-top: 20px;
  position: relative;
}
.container-policy h2::before {
  content: "#";
  position: absolute;
  right: 0;
  opacity: 0;
}
.container-policy h2:hover::before {
  opacity: 1;
  transition: opacity 0.3s ease;
}

.container-policy p {
  margin-left: 50px;
}
.container-policy ul {
  margin-left: 80px;
}

/* Responsive design */
@media (max-width: 600px) {
  .container {
    flex-direction: column;
    padding: 20px;
  }

  .year {
    max-width: 100%;
  }

  .go-link {
    padding: 12px;
  }
}

/* Animation for button click */
@keyframes buttonClick {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(0.95);
  }
  100% {
    transform: scale(1);
  }
}

.go-link:active {
  animation: buttonClick 0.3s ease;
}

footer {
  text-align: center;
  padding: 20px;
  background: var(--primary-color);
}
footer p {
  font-size: 14px;
  color: white;
  padding-bottom: 20px;
}
footer a {
  color: white;
}