/* ========= RESET ========= */

*{
    margin:0;
    padding:0;
    box-sizing:border-box;
}

body{
    font-family:Arial, Helvetica, sans-serif;
    background:#fff;
    color:#213b86;
    line-height:1.6;
}

/* ========= NAVIGATION ========= */

header{
    background:#213b86;
}

.nav-container{
    max-width:1100px;
    margin:auto;
    display:flex;
    justify-content:space-between;
    align-items:center;
    flex-wrap:wrap;
}

.logo{
    color:#fff;
    text-decoration:none;
    font-size:1.5rem;
    font-weight:bold;
    padding:15px 20px;
}

#menu-toggle{
    display:none;
}

.hamburger{
    display:none;
    color:white;
    font-size:2rem;
    padding:15px 20px;
    cursor:pointer;
}

.menu{
    display:flex;
}

.menu a{
    color:white;
    text-decoration:none;
    padding:20px 18px;
    transition:0.3s;
}

.menu a:hover{
    background:#2d4ca0;
    color:#ffcdd9;
}

.menu a.active{
    background:#ffcdd9;
    color:#000;
}

/* ========= CONTENT ========= */

.container{
    max-width:1100px;
    margin:auto;
    padding:30px 20px;
    text-align:center;
}

.container h1{
    margin-bottom:20px;
}

.notice{
    font-weight:bold;
    margin-bottom:20px;
}

img{
    max-width:100%;
    height:auto;
}

.hero{
    margin:30px 0;
}

.footer-image{
    margin-top:40px;
}

/* ========= MOBILE ========= */

@media (max-width:768px){

.hamburger{
    display:block;
}

.menu{
    display:none;
    width:100%;
    flex-direction:column;
}

.menu a{
    text-align:left;
    border-top:1px solid rgba(255,255,255,.15);
}

#menu-toggle:checked + .hamburger + nav{
    display:flex;
}

.logo{
    font-size:1.3rem;
}

.container{
    padding:20px 15px;
}

.container h1{
    font-size:1.8rem;
}

/* ========= REGISTRATION FORM ========= */

.form-section {
    max-width:700px;
    margin:30px auto;
    text-align:left;
}

.form-row {
    margin-bottom:20px;
}

.form-row label {
    display:block;
    font-weight:bold;
    margin-bottom:6px;
}

.form-row input,
.form-row select {
    width:100%;
    max-width:400px;
    padding:10px;
    font-size:16px;
    border:1px solid #ccc;
    border-radius:4px;
}

.checkbox-row {
    display:flex;
    gap:10px;
    align-items:flex-start;
    margin:25px 0;
}

.form-button {
    background:#213b86;
    color:white;
    border:none;
    padding:12px 25px;
    font-size:16px;
    cursor:pointer;
    border-radius:4px;
}

.form-button:hover {
    background:#ffcdd9;
    color:#000;
}

.runner-box {
    border:1px solid #ddd;
    padding:20px;
    margin-bottom:20px;
}

.runner-actions {
    text-align:center;
    margin:20px 0;
}

.runner-actions button {
    margin:5px;
}

}