* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: #1a1a1a;
    color: #fff;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(0, 255, 255, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(0, 255, 255, 0.1) 0%, transparent 40%);
}

.header {
    width: 100%;
    padding: 20px;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    height: 60px;
}

.container {
    width: 90%;
    max-width: 800px;
    margin: 40px auto;
    padding: 30px;
    background: rgba(0, 0, 0, 0.6);
    border-radius: 15px;
    border: 1px solid rgba(0, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

h1, h2 {
    text-align: center;
    color: #fff;
    margin-bottom: 30px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

h1 {
    font-size: 2.5em;
}

h2 {
    font-size: 1.8em;
    color: #00ffff;
    border-bottom: 2px solid rgba(0, 255, 255, 0.3);
    padding-bottom: 10px;
    margin-top: 30px;
}

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

.team-name-group {
    margin: 30px 0;
    padding: 20px;
    background: rgba(0, 255, 255, 0.1);
    border-radius: 10px;
}

.team-member {
    padding: 20px;
    margin: 20px 0;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 10px;
    border: 1px solid rgba(0, 255, 255, 0.1);
}

label {
    display: block;
    margin-bottom: 8px;
    color: #00ffff;
    font-weight: 500;
}

input, select, textarea {
    width: 100%;
    padding: 12px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(0, 255, 255, 0.3);
    border-radius: 5px;
    color: #fff;
    font-size: 16px;
    transition: all 0.3s ease;
}

select {
    color: #fff;
    background-color: rgba(0, 0, 0, 0.7);
}

select option {
    background-color: #1a1a1a;
    color: #fff;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: #00ffff;
    box-shadow: 0 0 10px rgba(0, 255, 255, 0.2);
}

button {
    width: 100%;
    padding: 15px;
    background: linear-gradient(45deg, #00ffff, #0088ff);
    border: none;
    border-radius: 5px;
    color: #000;
    font-size: 18px;
    font-weight: bold;
    cursor: pointer;
    transition: transform 0.3s ease;
    margin-top: 20px;
}

button:hover {
    transform: translateY(-2px);
}

.event-details {
    text-align: center;
    margin-top: 20px;
    padding: 20px;
    background: rgba(0, 255, 255, 0.1);
    border-radius: 10px;
}

.event-details p {
    margin: 10px 0;
    color: #fff;
}

.member-type {
    color: #00ffff;
    font-weight: bold;
    text-transform: uppercase;
    margin-bottom: 15px;
}

.loader {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 4px solid #f3f3f3;
    border-top: 4px solid #00ffff;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    z-index: 9999;
}

.overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 9998;
}

@keyframes spin {
    0% { transform: translate(-50%, -50%) rotate(0deg); }
    100% { transform: translate(-50%, -50%) rotate(360deg); }
}

@media (max-width: 768px) {
    .container {
        width: 95%;
        padding: 20px;
    }

    h1 {
        font-size: 2em;
    }
}