* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Montserrat', sans-serif;
  background-color: #ffffff;
  color: #1A2C3E;
  line-height: 1.4;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  font-size: 1.3rem;
}

.content {
  flex: 1;
}

h1, h2, h3, h4, h5, .logo-head, .panel h4, .panel h3 {
  font-family: 'Climate Crisis', sans-serif;
  font-weight: 300;
  font-optical-sizing: auto;
  font-style: normal;
  font-variation-settings: "YEAR" 1988;
  letter-spacing: -0.02em;
}

.logo-head {
  display: flex;
  align-items: center;
}

.logo-head img {
  height: 75px;
  width: auto;
}

h3 { font-size: 1.95rem; }
h4 { font-size: 1.82rem; }
h5 { font-size: 1.625rem; }

a {
  text-decoration: none;
  transition: all 0.2s ease;
}

.header-div {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.2rem 5%;
  max-width: 1820px;
  margin: 0 auto;
  width: 100%;
  flex-wrap: wrap;
  gap: 0.6rem;
  background-color: #ffffff;
  border-bottom: 1px solid #e2edf7;
  box-shadow: 0 4px 12px rgba(26, 44, 62, 0.02);
}

.panel {
  margin-left: auto;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.dropdown {
  position: relative;
  display: inline-block;
}

.dropbtn {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 1.2rem;
  color: #1A2C3E;
  border: none;
  padding: 10px 20px;
  border-radius: 52px;
  cursor: pointer;
  display: inline-block;
  background: transparent;
  transition: background-color 0.25s ease, color 0.25s ease;
}

.dropbtn:hover {
  background-color: #f0f7ff;
  color: #347fdc;
}

.dropdown-content {
  position: absolute;
  top: calc(100% + 10px);
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  min-width: 280px;
  background: #ffffff;
  border-radius: 24px;
  box-shadow: 0 20px 40px -10px rgba(26, 44, 62, 0.12), 0 0 0 1px #e2edf7;
  padding: 10px;
  z-index: 100;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, visibility 0.2s ease, transform 0.2s ease;
}

.dropdown:hover .dropdown-content {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-content a {
  display: block;
  padding: 12px 20px;
  font-family: 'Montserrat', sans-serif;
  font-size: 1.1rem;
  font-weight: 500;
  color: #2c4c7c;
  text-decoration: none;
  border-radius: 16px;
  border-left: none;
  transition: background-color 0.2s ease, color 0.2s ease, padding-left 0.2s ease;
}

.dropdown-content a:hover {
  background: #eef6fe;
  color: #347fdc;
  padding-left: 24px;
}

.dropdown-content::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 0;
  border-left: 8px solid transparent;
  border-right: 8px solid transparent;
  border-bottom: 8px solid #ffffff;
  filter: drop-shadow(0 -1px 0 #e2edf7);
}

.panel h4, .panel h3 {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin: 0;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.panel a, .panel span {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 1.2rem;
}

.signs-link {
  font-family: 'Montserrat', sans-serif;
  font-weight: 600;
  font-size: 1.2rem;
  color: #1A2C3E;
  padding: 10px 20px;
  border-radius: 52px;
  display: inline-block;
  text-decoration: none;
  transition: background-color 0.25s ease, color 0.25s ease;
}

.signs-link:hover {
  background-color: #f0f7ff;
  color: #347fdc;
}

.login-a {
  display: inline-block;
  padding: 10px 28px;
  border: 2.5px solid #347fdc;
  border-radius: 52px;
  background: transparent;
  color: #347fdc;
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1.2rem;
  transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.login-a:hover {
  background: #347fdc;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(52, 127, 220, 0.15);
}

.panel span, .profile-link {
  background: #eef6fe;
  padding: 10px 24px;
  border-radius: 52px;
  font-weight: 600;
  color: #1A2C3E;
  display: inline-block;
  border: 1px solid transparent;
  transition: all 0.2s ease;
}

.profile-link:hover {
  background: #347fdc;
  color: #ffffff;
}

.logout-a {
  font-family: 'Montserrat', sans-serif;
  font-weight: 700;
  font-size: 1.2rem;
  background: transparent;
  border: 2.5px solid #d32f2f;
  padding: 9px 24px;
  border-radius: 52px;
  color: #d32f2f;
  display: inline-block;
  transition: all 0.2s ease;
}

.logout-a:hover {
  background: #d32f2f;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(211, 47, 47, 0.1);
}

.index {
  max-width: 1664px;
  margin: 1.3rem auto 3.9rem;
  padding: 0 31px;
}

.about {
  font-size: 1.56rem;
  background-color: #2575fc;
  border-radius: 62px;
  padding: 1.56rem 2.6rem;
  text-align: center;
  color: #ffffff;
  font-weight: 500;
  box-shadow: 0 2px 6px rgba(0,0,0,0.02);
  overflow: hidden;
  max-width: 100%;
}

.about-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  max-width: 100%;
  min-width: 0;
}

.about-text {
  flex: 1 1 0;
  min-width: 0;
  max-width: 100%;
  word-wrap: break-word;
  overflow-wrap: anywhere;
  word-break: break-word;
  hyphens: auto;
}

.about-text h1 {
  font-size: 2.14rem;
  margin: 0 0 12px 0;
  text-align: start;
  word-wrap: break-word;
  overflow-wrap: anywhere;
  hyphens: auto;
  line-height: 1.15;
}

.about-text p {
  font-size: 1.2rem;
  line-height: 1.6;
  margin: 0 0 15px 0;
  text-align: left;
  word-wrap: break-word;
  overflow-wrap: anywhere;
  hyphens: auto;
}

.about-image {
  flex: 0 1 315px;
  max-width: 100%;
  min-width: 0;
}

.about-image img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  max-width: 100%;
  object-fit: contain;
}

.wrap h4 {
  text-align: center;
  margin-bottom: 2.6rem;
  font-size: 2.34rem;
}

.blocks-flex {
  display: flex;
  flex-wrap: wrap;
  gap: 2.6rem;
  justify-content: center;
}

.block-child, .block-teachers {
  flex: 1;
  min-width: 364px;
  background: #eef6fe;
  border-radius: 42px;
  padding: 2.1rem 1.9rem;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 10px 20px rgba(0,0,0,0.02);
}

.block-child:hover, .block-teachers:hover {
  transform: translateY(-5px);
  box-shadow: 0 26px 39px rgba(0,0,0,0.05);
}

.block-child h5, .block-teachers h5 {
  text-align: center;
  font-size: 2.08rem;
  margin-bottom: 1.3rem;
}

.block-child p, .block-teachers p {
  text-align: start;
  margin-top: 1.3rem;
  margin-left: 0.9rem;
  margin-right: 0.9rem;
  color: #2c4c7c;
  font-weight: 500;
  font-size: 1.3rem;
  line-height: 1.5;
}

.flex-age {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.3rem;
  margin-top: 1.95rem;
}

.age1, .age2, .age3 {
  background: #347fdc;
  color: white;
  font-weight: 700;
  font-size: 1.17rem;
  padding: 0.65rem 1.56rem;
  border-radius: 130px;
  display: inline-block;
  letter-spacing: 0.3px;
  transition: 0.1s;
}

footer {
  background-color: #004f9f;
  margin-top: 3.2rem;
  padding: 2.6rem 5%;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.95rem;
  color: white;
}

.text-logo {
  font-weight: 700;
  font-size: 1.69rem;
  letter-spacing: 1px;
  font-family: 'Climate Crisis', sans-serif;
}

.social {
  display: flex;
  gap: 1.2rem;
  align-items: center;
}

.social-link {
  display: inline-flex !important;
  align-items: center;
  justify-content: center;
  width: 40px !important;
  height: 40px !important;
  border-radius: 10px;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  text-decoration: none;
  position: relative;
  flex-shrink: 0;
  background-color: #4C75A3 !important;
}

.social-link img {
  width: 44px;
  height: 44px;
  display: block;
  transition: all 0.3s ease;
  max-width: 100%;
  max-height: 100%;
}

.social-link .tooltip {
  position: absolute;
  bottom: -32px;
  left: 50%;
  transform: translateX(-50%) scale(0.8);
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 4px 12px;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all 0.3s ease;
}

.social-link:hover .tooltip {
  opacity: 1;
  transform: translateX(-50%) scale(1);
  bottom: -35px;
}

.social-link:hover {
  transform: translateY(-3px) scale(1.05);
  background-color: #3b5998 !important;
  box-shadow: 0 8px 20px rgba(76, 117, 163, 0.4);
}

.social-link:hover img {
  transform: scale(1.1) rotate(-5deg);
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(76, 117, 163, 0.4); }
  70% { box-shadow: 0 0 0 10px rgba(76, 117, 163, 0); }
  100% { box-shadow: 0 0 0 0 rgba(76, 117, 163, 0); }
}

@media (max-width: 768px) {
  body { font-size: 1.1rem; }

  .header-div {
    padding: 1rem 4%;
    gap: 0.8rem;
  }

  .logo-head img { height: 60px; }

  .nav-menu {
    gap: 0.5rem;
    width: 100%;
    justify-content: center;
  }

  .panel { width: 100%; }

  .panel h4, .panel h3 {
    justify-content: center;
    gap: 0.8rem;
    flex-wrap: wrap;
  }

  .dropbtn {
    font-size: 1.1rem;
    padding: 8px 16px;
    background: #f0f7ff;
  }

  .signs-link {
    font-size: 1.1rem;
    padding: 8px 16px;
    background: #f0f7ff;
  }

  .dropdown-content {
    top: calc(100% + 8px);
    min-width: 240px;
    padding: 6px;
    box-shadow: 0 20px 30px -10px rgba(0,0,0,0.2);
    border-radius: 20px;
    z-index: 1000;
  }

  .dropdown-content.active {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
  }

  .dropdown-content::before { display: none; }

  .dropdown-content a {
    padding: 10px 16px;
    font-size: 1.05rem;
    text-align: center;
    white-space: nowrap;
  }

  .dropdown-content a:hover {
    padding-left: 16px;
    background: #eef6fe;
  }

  .panel span { font-size: 1rem; padding: 8px 18px; }

  .logout-a {
    padding: 8px 18px;
    font-size: 1rem !important;
    border-width: 2px;
  }

  .login-a {
    padding: 8px 22px;
    font-size: 1rem;
    border-width: 2px;
  }

  .profile-link { font-size: 1rem; padding: 8px 18px; }

  .index {
    padding: 0 16px;
    margin: 0.8rem auto 2.6rem;
  }

  .about {
    font-size: 1.1rem;
    padding: 1.4rem 1.5rem;
    border-radius: 32px;
    margin-bottom: 2rem;
    width: 100%;
    overflow: hidden;
  }

  .about-container {
    flex-direction: column-reverse;
    text-align: center;
    gap: 20px;
    width: 100%;
  }

  .about-text {
    width: 100%;
    flex: 1 1 auto;
  }

  .about-text h1 {
    font-size: 1.5rem;
    text-align: center;
    line-height: 1.2;
    margin-bottom: 10px;
  }

  .about-text p {
    font-size: 1rem;
    text-align: center;
    line-height: 1.55;
    margin-bottom: 12px;
  }

  .about-image {
    flex: 0 0 auto;
    width: 140px;
    max-width: 60%;
    margin: 0 auto;
  }

  .wrap h4 { font-size: 1.8rem; margin-bottom: 1.8rem; }

  .blocks-flex {
    gap: 1.5rem;
    flex-direction: column;
    align-items: center;
  }

  .block-child, .block-teachers {
    min-width: 0;
    width: 100%;
    max-width: 400px;
    padding: 1.5rem 1.2rem;
    border-radius: 30px;
  }

  .block-child h5, .block-teachers h5 { font-size: 1.6rem; margin-bottom: 0.8rem; }

  .block-child p, .block-teachers p {
    font-size: 1.05rem;
    margin: 0.8rem auto;
    max-width: 100%;
    text-align: center;
  }

  .flex-age { gap: 0.8rem; }
  .age1, .age2, .age3 { font-size: 1rem; padding: 0.5rem 1.2rem; }

  footer {
    flex-direction: column;
    text-align: center;
    padding: 2rem 5%;
    gap: 1.5rem;
    margin-top: 2rem;
  }

  .text-logo { font-size: 1.4rem; }

  .social { gap: 1rem; justify-content: center; }

  .social-link {
    width: 44px !important;
    height: 44px !important;
    border-radius: 12px;
  }

  .social-link img { width: 32px; height: 32px; }

  .social-link .tooltip { bottom: -28px; font-size: 0.7rem; padding: 2px 10px; }
  .social-link:hover .tooltip { bottom: -30px; }
}

@media (max-width: 400px) {
  .logo-head img { height: 50px; }

  .dropbtn { font-size: 1rem; padding: 8px 12px; }

  .signs-link { font-size: 1rem; padding: 8px 12px; }

  .dropdown-content { min-width: 180px; }

  .dropdown-content a {
    font-size: 1rem;
    padding: 12px 16px;
    white-space: normal;
  }

  .block-child, .block-teachers { padding: 1.2rem 0.8rem; }
  .block-child p, .block-teachers p { font-size: 0.95rem; }

  .social-link { width: 38px !important; height: 38px !important; }
  .social-link img { width: 28px; height: 28px; }

  .about {
    padding: 1.1rem 1rem;
    border-radius: 24px;
  }

  .about-text h1 {
    font-size: 1.25rem;
  }

  .about-text p {
    font-size: 0.9rem;
    line-height: 1.5;
  }

  .about-image {
    width: 110px;
    max-width: 55%;
  }
}