@import url("https://fonts.googleapis.com/css2?family=Montserrat:wght@400;700&display=swap");

body {
  margin: 0;
  font-family: "Montserrat", Arial, sans-serif;
  background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
  color: #222;
  min-height: 100vh;
}

.header {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  background: transparent;
}
.header-box {
  display: flex;
  width: 100%;
  max-width: 1200px;
}
.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
}
.logo {
  max-width: 100px;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.08));
}

.hero {
  text-align: center;
  padding: 56px 20px 40px 20px;
  background: transparent;
}

.banner {
  width: 100%;
  max-width: 900px;
  margin: 0 auto 40px;
  display: block;
  border-radius: 18px;
  box-shadow: 0 4px 32px rgba(0, 0, 0, 0.1);
}

.hero h1 {
  font-size: 2.4rem;
  margin-bottom: 16px;
  font-weight: 700;
  color: #1a3a5d;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 28px;
  color: #3a3a3a;
}

.cta-button {
  background: linear-gradient(90deg, #25d366 0%, #128c7e 100%);
  color: white;
  padding: 16px 36px;
  font-size: 1.25rem;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  text-decoration: none;
  display: inline-block;
  box-shadow: 0 2px 12px rgba(37, 211, 102, 0.15);
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
  letter-spacing: 0.5px;
}
.cta-button:hover {
  background: linear-gradient(90deg, #128c7e 0%, #25d366 100%);
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 4px 24px rgba(18, 140, 126, 0.18);
}

.faq {
  padding: 48px 20px 56px 20px;
  background: rgba(255, 255, 255, 0.85);
  max-width: 900px;
  margin: 0 auto 40px auto;
  border-radius: 18px;
  box-shadow: 0 4px 32px rgba(0, 0, 0, 0.07);
}

.faq h2 {
  text-align: center;
  margin-bottom: 36px;
  font-size: 2rem;
  color: #1a3a5d;
  font-weight: 700;
}

.faq-item {
  margin-bottom: 28px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
  transition: box-shadow 0.2s;
  overflow: hidden;
  padding: 0;
}
.faq-item:hover {
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.1);
}
.faq-question {
  width: 100%;
  background: none;
  border: none;
  outline: none;
  text-align: left;
  font-size: 1.15rem;
  font-weight: 700;
  color: #128c7e;
  padding: 24px 20px 18px 20px;
  cursor: pointer;
  transition: background 0.2s;
  border-bottom: 1px solid #f0f0f0;
}
.faq-question:after {
  content: "\25BC";
  float: right;
  transition: transform 0.3s;
}
.faq-item.active .faq-question:after {
  transform: rotate(180deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  background: #fff;
  transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1), padding 0.3s;
  padding: 0 20px;
}
.faq-item.active .faq-answer {
  max-height: 200px;
  padding: 16px 20px 18px 20px;
}
.faq-item .faq-answer p {
  margin: 0;
  color: #444;
  font-size: 1rem;
}

.footer {
  text-align: center;
  padding: 24px 10px 18px 10px;
  background: transparent;
  color: #888;
  font-size: 1rem;
  letter-spacing: 0.2px;
}

.footer-contact {
  margin-top: 12px;
  font-size: 0.98rem;
  color: #666;
}
.footer-contact p {
  margin: 4px 0;
}
.footer-contact a {
  color: #128c7e;
  text-decoration: none;
  transition: text-decoration 0.2s;
}
.footer-contact a:hover {
  text-decoration: underline;
}

@media (max-width: 700px) {
  .header {
    padding: 20px 0 10px 0;
  }
  .logo {
    max-width: 140px;
  }
  .hero {
    padding: 32px 8px 24px 8px;
  }
  .banner {
    max-width: 100%;
    border-radius: 10px;
    margin-bottom: 24px;
  }
  .faq {
    padding: 24px 4px 32px 4px;
    border-radius: 10px;
  }
  .faq-item {
    border-radius: 8px;
  }
  .faq-question {
    padding: 16px 8px 12px 8px;
  }
  .faq-answer {
    padding: 0 8px;
  }
  .faq-item.active .faq-answer {
    padding: 12px 8px 12px 8px;
  }
  .footer {
    padding: 16px 4px 12px 4px;
    font-size: 0.95rem;
  }
  .footer-contact {
    font-size: 0.93rem;
  }
}

.dark-mode {
  background-color: #121212;
  color: #fff;
}

.dark-mode button {
  background-color: #333;
  color: #fff;
}

button.btn-icon.btn-hover {
  cursor: pointer;
  border: none;
  padding: 6px 10px;
  border-radius: 6px;
  transition: 0.3s;
}

button.btn-icon.btn-hover:hover {
  opacity: 0.8;
}