html {
  font-size: 14px;
}

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

.btn:focus, .btn:active:focus, .btn-link.nav-link:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 0.1rem white, 0 0 0 0.25rem #258cfb;
}

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

body {
  margin-bottom: 60px;
}

.form-floating > .form-control-plaintext::placeholder, .form-floating > .form-control::placeholder {
  color: var(--bs-secondary-color);
  text-align: end;
}

.form-floating > .form-control-plaintext:focus::placeholder, .form-floating > .form-control:focus::placeholder {
  text-align: start;
}

body {
    margin: 0;
    font-family: tahoma;
    background: #0f172a;
    color: #fff
}

header {
    height:100px;
    padding: 70px 20px;
    text-align: center;
    background: linear-gradient(135deg,#1e293b,#2563eb)
}

nav {
    padding: 15px;
    background: #111827;
    text-align: center
}

    nav a {
        color: #fff;
        text-decoration: none;
        margin: 0 15px
    }

section {
    max-width: 1100px;
    margin: auto;
    padding: 50px 20px
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit,minmax(220px,1fr));
    gap: 20px
}

.container {
    color:white;
}

.card {
    background: #1e293b;
    padding: 20px;
    color:white;
    border-radius: 14px
}
/*
footer {
    background: #111827;
    padding: 20px;
    text-align: center
}*/

button {
    background: #2563eb;
    color: #fff;
    border: none;
    padding: 12px 20px;
    border-radius: 8px
}

.hero-slider {
    height: 600px;
    position: relative;
    overflow: hidden;
}



.slide {
    position: absolute;
    width: 100%;
    height: 100%;
    opacity: 0;
    animation: slider 15s infinite;
}



    .slide:nth-child(1) {
        animation-delay: 0s;
    }


    .slide:nth-child(2) {
        animation-delay: 5s;
    }


    .slide:nth-child(3) {
        animation-delay: 10s;
    }



    .slide img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        filter: brightness(45%);
    }



.content {
    position: absolute;
    top: 50%;
    right: 10%;
    transform: translateY(-50%);
    max-width: 550px;
    color: white;
}



    .content h1 {
        font-size: 60px;
        margin-bottom: 20px;
    }



    .content p {
        font-size: 22px;
        line-height: 2;
    }



    .content a {
        display: inline-block;
        margin-top: 25px;
        padding: 14px 35px;
        background: #2563eb;
        border-radius: 10px;
        color: white;
        text-decoration: none;
        font-size: 18px;
    }



@keyframes slider {


    0% {
        opacity: 0;
    }


    10% {
        opacity: 1;
    }


    30% {
        opacity: 1;
    }


    40% {
        opacity: 0;
    }


    100% {
        opacity: 0;
    }
}