:root {
    --white-color: #FFFFFF;
    --primary-color: #007BFF;  /* Blue primary color */
    --section-bg-color: #E3F2FD;  /* Light blue background */
    --dark-color: #0A2540;  /* Dark blue text */
    --grey-color: #B0BEC5;
    --p-color: #546E7A;

    --font-family: 'Inter', sans-serif;

    --h1-size: 64px;
    --h2-size: 42px;
    --p-size: 20px;
}

body {
    font-family: var(--font-family);
    margin: 0;
    background-color: var(--white-color);
    color: var(--p-color);
}

h1, h2 {
    color: var(--dark-color);
    line-height: 1.2;
    margin: 20px 0;
}

h1 {
    font-size: var(--h1-size);
}

h2 {
    font-size: var(--h2-size);
}

p {
    font-size: var(--p-size);
    line-height: 1.6;
    margin: 20px 0;
}

.navbar {
    background: var(--white-color);
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    padding: 20px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 10;
    transition: transform 0.3s ease;
}

.navbar a {
    color: var(--dark-color);
    padding: 15px 20px;
    text-decoration: none;
    font-weight: 500;
}

.navbar a:hover {
    color: var(--primary-color);
}

.navbar-toggler {
    border: none;
    background: transparent;
    cursor: pointer;
    position: relative;
    width: 30px;
    height: 24px;
    z-index: 11;
    outline: none !important;
    -webkit-tap-highlight-color: transparent;
}

.navbar-toggler:focus {
    outline: none;
    box-shadow: none;
}

.navbar-toggler .navbar-toggler-icon {
    background-image: none !important;
    box-shadow: none !important;
    border: none !important;
}

.navbar-toggler::before,
.navbar-toggler::after {
    display: none !important;
}

.navbar-toggler-icon {
    width: 30px;
    height: 2px;
    background-color: var(--dark-color);
    display: block;
    position: relative;
    transition: transform 0.3s ease;
}

.navbar-toggler-icon::before,
.navbar-toggler-icon::after {
    content: '';
    width: 30px;
    height: 2px;
    background-color: var(--dark-color);
    position: absolute;
    left: 0;
    transition: transform 0.3s ease, opacity 0.3s ease, top 0.3s ease;
}

.navbar-toggler-icon::before {
    top: -8px;
}

.navbar-toggler-icon::after {
    top: 8px;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon {
    background-color: transparent;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::before {
    transform: rotate(45deg);
    top: 0;
}

.navbar-toggler[aria-expanded="true"] .navbar-toggler-icon::after {
    transform: rotate(-45deg);
    top: 0;
}

.hero {
    position: relative;
    text-align: center;
    color: var(--white-color);
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, var(--primary-color), var(--section-bg-color));
}

.hero img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0.8;
}

.overlay {
    position: relative;
    z-index: 2;
}

.btn {
    background: var(--primary-color);
    color: var(--white-color);
    padding: 12px 25px;
    font-size: 16px;
    border: none;
    cursor: pointer;
    border-radius: 50px;
    transition: background 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 10px rgba(0, 123, 255, 0.3);
}

.btn:hover {
    background: #0056b3;
    box-shadow: 0 6px 15px rgba(0, 123, 255, 0.5);
}

.section {
    padding: 30px 20px;
    background: var(--section-bg-color);
    text-align: center;
}

.section2 {
    padding: 80px 20px;
    background: var(--section-bg-color);
    text-align: left;
}

.footer {
    background: var(--dark-color);
    color: var(--white-color);
    text-align: center;
    padding: 40px 0;
}