:root {
    --primary: #daed0a;
    --secondary: #2980b9;
    --accent: #f53722;
    --light: #ecf0f1;
    --dark: #2c3e50;
}

.navbar-3d {
    transition: all 0.3s ease;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    transform-style: preserve-3d;
}

.navbar-3d:hover {
    transform: perspective(500px) translateZ(20px);
    box-shadow: 0 15px 30px rgba(0,0,0,0.2);
}

.nav-link {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.nav-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}

.logo-3d {
    transition: all 0.5s ease;
    transform-style: preserve-3d;
}

.logo-3d:hover {
    animation: logoFloat 2s ease-in-out infinite;
}

@keyframes logoFloat {
    0%, 100% {
        transform: perspective(300px) rotateY(0) translateY(0);
    }
    50% {
        transform: perspective(300px) rotateY(10deg) translateY(-5px);
    }
}
sup{
    position: relative;
    color: green;
    font-size: 0.8em;
    top: -0.5em;
}

/* ===== Hamburger Menu Styles ===== */
.hamburger {
    transition: all 0.3s ease;
}

.hamburger span {
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

.mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s ease;
}

.mobile-menu.open {
    max-height: 500px;
}

@media (min-width: 1024px) {
    .mobile-menu {
        max-height: none !important;
        overflow: visible !important;
    }
}

/* form section */
form {
    padding: 20px 20px;
    border-radius: 5px;
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    width: 100%;
    height: auto;
}

h2{
    text-align: center;
    margin-bottom: 70px;
    color: #333;
}

label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

input, textarea {
    width: 100%;
    height: 40px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

form{
    background-color: #f9f9f9;
    margin: auto;
    width: 80%;
    height: auto;
    padding: 20px;
}

button {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    height: 50px;
    background-color: blue;
}