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

:root {
    --ocean-deep: #0B2545;
    --ocean-blue: #134E6F;
    --ocean-light: #1A7FA0;
    --wave-teal: #2EC4B6;
    --white: #FFFFFF;
    --coral: #E63946;
    --border: #e0e0e0;
}

body {
    font-family: 'Work Sans', sans-serif;
    background: linear-gradient(135deg, var(--ocean-deep) 0%, var(--ocean-blue) 50%, var(--ocean-light) 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.wave-container {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 200px;
    overflow: hidden;
    z-index: 0;
    opacity: 0.1;
}

.wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 200%;
    height: 100%;
    background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 120'%3E%3Cpath fill='%23ffffff' d='M0,0V46.29c47.79,22.2,103.59,32.17,158,28,70.36-5.37,136.33-33.31,206.8-37.5C438.64,32.43,512.34,53.67,583,72.05c69.27,18,138.3,24.88,209.4,13.08,36.15-6,69.85-17.84,104.45-29.34C989.49,25,1113-14.29,1200,52.47V0Z'/%3E%3C/svg%3E") repeat-x;
    animation: wave 25s linear infinite;
}

@keyframes wave {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.register-container {
    background: var(--white);
    border-radius: 30px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    overflow: hidden;
    max-width: 1100px;
    width: 100%;
    position: relative;
    z-index: 1;
    animation: slideUp 0.6s ease;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(30px); }
    to   { opacity: 1; transform: translateY(0); }
}

.register-form {
    padding: 3rem;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--ocean-blue);
    text-decoration: none;
    margin-bottom: 2rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.back-link:hover {
    color: var(--wave-teal);
    transform: translateX(-5px);
}

h1 {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    color: var(--ocean-deep);
    margin-bottom: 0.5rem;
}

.subtitle {
    color: #666;
    margin-bottom: 2rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--ocean-deep);
    font-weight: 500;
}

.required {
    color: var(--coral);
}

.input-wrapper {
    position: relative;
}

.input-wrapper i {
    position: absolute;
    left: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--ocean-light);
    font-size: 1.1rem;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="password"],
select {
    width: 100%;
    padding: 1rem 1rem 1rem 3rem;
    border: 2px solid var(--border);
    border-radius: 12px;
    font-size: 1rem;
    font-family: 'Work Sans', sans-serif;
    background: var(--white);
    color: inherit;
    transition: all 0.3s ease;
}

select {
    appearance: none;
    background: var(--white) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%231A7FA0' d='M1 1l5 5 5-5'/%3E%3C/svg%3E") no-repeat right 1rem center;
    padding-right: 2.5rem;
    cursor: pointer;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
input[type="password"]:focus,
select:focus {
    outline: none;
    border-color: var(--wave-teal);
    box-shadow: 0 0 0 4px rgba(46, 196, 182, 0.1);
}

.team-selection {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-top: 0.5rem;
}

.team-option {
    position: relative;
}

.team-option input[type="radio"] {
    position: absolute;
    opacity: 0;
}

.team-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 1.5rem;
    border: 3px solid var(--border);
    border-radius: 16px;
    cursor: pointer;
    background: var(--white);
    transition: all 0.3s ease;
}

.team-option input[type="radio"]:checked + .team-label {
    border-color: var(--wave-teal);
    background: rgba(46, 196, 182, 0.05);
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(46, 196, 182, 0.2);
}

.team-label i {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.team-label.white i { color: #888; }
.team-label.black i { color: #1a1a1a; }

.team-name {
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--ocean-deep);
}

.team-description {
    font-size: 0.9rem;
    color: #666;
    text-align: center;
    margin-top: 0.5rem;
}

.error-message,
.success-message {
    padding: 1rem;
    border-radius: 12px;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-width: 2px;
    border-style: solid;
}

.error-message {
    background: #fff5f5;
    border-color: var(--coral);
    color: var(--coral);
}

.success-message {
    background: #f0fdf4;
    border-color: #22c55e;
    color: #16a34a;
}

.btn-submit {
    width: 100%;
    background: linear-gradient(135deg, var(--wave-teal), var(--ocean-light));
    color: var(--white);
    padding: 1rem;
    border: none;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(46, 196, 182, 0.4);
}

.gdpr-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 0.95rem;
    color: #444;
    line-height: 1.5;
}

.gdpr-label input[type="checkbox"] {
    width: 1.1rem;
    height: 1.1rem;
    padding: 0;
    margin-top: 0.2rem;
    flex-shrink: 0;
    accent-color: var(--wave-teal);
}

.gdpr-label a {
    color: var(--ocean-light);
    text-decoration: underline;
    font-weight: 500;
}

.gdpr-label a:hover,
.login-link a:hover {
    color: var(--wave-teal);
}

.login-link {
    text-align: center;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 2px solid var(--border);
    color: #666;
}

.login-link a {
    color: var(--ocean-light);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s ease;
}

@media (max-width: 768px) {
    body {
        padding: 0.75rem;
        align-items: flex-start;
    }

    .register-container {
        border-radius: 16px;
    }

    .register-form {
        padding: 1.5rem;
    }

    h1 {
        font-size: 1.8rem;
    }

    .form-grid {
        grid-template-columns: 1fr;
        gap: 0;
    }

    .emergency-grid {
        grid-template-columns: 1fr !important;
    }

    .team-selection {
        grid-template-columns: 1fr;
    }

    .team-label {
        padding: 1rem;
    }

    .team-label i {
        font-size: 2rem;
        margin-bottom: 0.5rem;
    }
}