html {
  font-size: 14px;
}

@media (min-width: 768px) {
  html {
    font-size: 16px;
  }
}


html {
  position: relative;
  min-height: 100%;
}


body::before {
    content: "";
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5); 
    z-index: -1;
}

body {

  background: url('../img/background.png') no-repeat center center fixed;
  background-size: cover;
  color: #ffffff;
   display: flex;
  flex-direction: column;
  min-height: 100vh;
}

footer {
  margin-top: auto;
  min-height: 80px;
}
.glass-bg {
  background: rgba(15, 32, 39, 0.35);
  backdrop-filter: blur(3px) saturate(150%);
  -webkit-backdrop-filter: blur(10px) saturate(150%);
  border-radius: 1.5rem !important;
  box-shadow: 0 4px 32px 0 rgba(0,0,0,0.18);
  border: 1px solid rgba(255,255,255,0.18);
}
.custom-navbar {
  backdrop-filter: blur(4px); 
  border-radius: 1.5rem;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  background: rgba(22, 24, 38, 0.92);
  border: none;
}

.custom-navbar .nav-link {
  font-size: 1.12rem;
  font-family: 'Segoe UI', 'Roboto', sans-serif;
  margin: 0 1rem;
  font-style: italic; 
  transition: color 0.25s;
}

.custom-navbar .nav-link.active,
.custom-navbar .nav-link:hover {
  color: #1ecbe1 !important;
  font-weight: bold;
  background: transparent;
  text-shadow: 0 0 3px #fff, 0 0 6px #1ecbe1;
}

@media (max-width: 900px) {
  .custom-navbar {
    width: 98% !important;
    border-radius: 1rem;
  }
}

.nav-tabs .nav-link {
  color: #62cfff;
  background: rgba(30, 41, 59, 0.18); 
  border: 1.5px solid rgba(255,255,255,0.10);
  border-radius: 1.5rem !important;
  margin-right: 0.5rem;
  padding: 0.28rem 1.05rem;    
  font-size: 0.97rem;         
  font-weight: 500;
  box-shadow: 0 2px 12px 0 rgba(0,0,0,0.10);
  backdrop-filter: blur(7px) saturate(140%);
  -webkit-backdrop-filter: blur(7px) saturate(140%);
  transition: all 0.22s;
  outline: none;
}

.nav-tabs .nav-link.active,
.nav-tabs .nav-link:focus,
.nav-tabs .nav-link:hover {
  color: #fff !important;
  background: rgba(50, 200, 255, 0.15);
  border-color: #1ecbe1;
  font-weight: 700;
  box-shadow: 0 0 10px #1ecbe144, 0 0 1px #fff;
  text-shadow: 0 0 3px #fff, 0 0 6px #1ecbe1;
}

.nav-tabs {
  border-bottom: 2px solid rgba(255,255,255,0.10);
}
.text-gradient {
  background: linear-gradient(90deg, #62cfff 30%, #1ecbe1 80%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  font-weight: bold;
}