/* Ensure sections and anchors don't get covered by fixed navbar */
section { scroll-margin-top: 6rem; }
.nav-link {
    position: relative;
    padding-bottom: 4px;
    overflow: hidden;
}
.nav-link::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: #38bdf8;
    bottom: 0;
    left: -100%;
    transition: left 0.3s ease-in-out;
}
.nav-link:hover::after {
    left: 0;
}
.nav-link:hover {
    color: #38bdf8;
    transform: translateY(-1px);
}
.nav-link.active {
    color: #f59e0b;
    font-weight: 600;
}
.nav-link.active::after {
    left: 0;
    background-color: #f59e0b;
}
/* Enhanced navbar */
#navbar {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    background: rgba(17, 24, 39, 0.8);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}
#navbar.scrolled {
    background: rgba(17, 24, 39, 0.95);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}
.navbar-logo {
    background: linear-gradient(135deg, #06b6d4, #f59e0b);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 800;
    letter-spacing: 1px;
}
.mobile-menu-btn {
    transition: all 0.3s ease;
}
.mobile-menu-btn:hover {
    transform: scale(1.1);
}
.mobile-menu-btn.active {
    transform: rotate(90deg);
}
.navbar-fixed {
    background-color: white;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: background-color 0.3s ease, box-shadow 0.3s ease;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
}
.form-input {
    transition: all 0.3s ease-in-out;
}
.form-input:focus {
    transform: scale(1.05);
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.5);
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
}
.loading-text {
    font-size: 2rem;
    color: #38bdf8;
    font-weight: bold;
}


.nav-link {
position: relative;
padding-bottom: 4px;
overflow: hidden;
}
.nav-link::after {
content: '';
position: absolute;
width: 100%;
height: 2px;
background-color: #38bdf8;
bottom: 0;
left: -100%;
transition: left 0.3s ease-in-out;
}
.nav-link:hover::after {
left: 0;
}
.header-text {
font-size: 2rem;
font-weight: bold;
color: #38bdf8;
text-align: center;
height: 50px;
overflow: hidden;
position: relative;
}
/* Style de la navbar fixée avec fond blanc */
.navbar-fixed {
background-color: white;
box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
transition: background-color 0.3s ease, box-shadow 0.3s ease;
position: fixed;
top: 0;
left: 0;
width: 100%;
z-index: 1000;
}