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;
}
:root {
    --primary-color: #001f3f;
    --secondary-color: #004080;
    --accent-color: #00aaff;
    --light-color: #f5f7fa;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    scroll-behavior: smooth;
}
/* Sticky Side Menu */
.side-menu {
    position: fixed;
    top: 50%;
    left: 0;
    transform: translateY(-50%);
    background: var(--primary-color);
    padding: 10px 0;
    border-radius: 0 10px 10px 0;
    z-index: 999;
}

    .side-menu a {
        display: block;
        color: #fff;
        text-align: center;
        padding: 15px 10px;
        margin: 5px 0;
        font-size: 1.2rem;
        transition: 0.3s;
    }

        .side-menu a:hover {
            background: var(--accent-color);
            color: #fff;
            transform: translateX(5px);
        }

/* Navbar */
.navbar {
    background-color: var(--primary-color);
}

.navbar-brand, .nav-link {
    color: #fff !important;
}

    .nav-link:hover {
        color: var(--accent-color) !important;
    }

/* Hero Section */
.hero-section {
    background: url('https://images.unsplash.com/photo-1601597111111-xxxxx?crop=entropy&cs=tinysrgb&fit=max&fm=jpg&ixid=MnwxMjA3fDB8MHxzZWFyY2h8M3x8bG9naXN0aWNzfGVufDB8fDB8fA%3D%3D&q=80&w=1920') no-repeat center center;
    background-size: cover;
    background-attachment: fixed;
    color: #fff;
    text-align: center;
    padding: 150px 20px;
    overflow: hidden;
}

    .hero-section h1 {
        font-size: 3.5rem;
        font-weight: bold;
        animation: fadeInDown 1s ease;
    }

    .hero-section p {
        font-size: 1.3rem;
        margin: 20px 0;
        animation: fadeInUp 1s ease;
    }

.btn-primary {
    background-color: var(--accent-color);
    border: none;
    transition: 0.3s;
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

    .btn-primary:hover {
        background-color: #0088cc;
        transform: translateY(-3px);
        box-shadow: 0 10px 20px rgba(0,0,0,0.3);
    }

/* Hero Image zoom */
.hero-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.35);
}

.hero-section img.hero-img {
    width: 100%;
    max-width: 600px;
    transition: transform 10s ease-in-out;
}

.hero-section:hover img.hero-img {
    transform: scale(1.05);
}

/* Animations */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.features {
    padding: 80px 0;
}

.feature-card {
    border-radius: 15px;
    padding: 40px 20px;
    text-align: center;
    transition: all 0.4s;
    background: var(--light-color);
}

    .feature-card:hover {
        transform: translateY(-10px);
        box-shadow: 0 15px 30px rgba(0,0,0,0.2);
    }

    .feature-card i {
        font-size: 3rem;
        color: var(--accent-color);
        margin-bottom: 20px;
    }

.counters {
    background: var(--primary-color);
    color: #fff;
    padding: 80px 0;
    text-align: center;
}

.counter {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--accent-color);
}

.counter-label {
    margin-top: 10px;
    font-size: 1.1rem;
}

#about {
    background-color: #f0f4f8;
    padding: 80px 20px;
    text-align: center;
}

.testimonial {
    background: #fff;
    padding: 40px;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

    .testimonial i {
        font-size: 1.5rem;
        color: var(--accent-color);
    }

    .testimonial p {
        font-style: italic;
        margin: 15px 0;
    }

#contact {
    padding: 80px 20px;
}

footer {
    background-color: var(--primary-color);
    color: #fff;
    padding: 40px 20px;
    text-align: center;
}