.logo {
    display: flex;
    align-items: center;
    gap: 16px;
}

.logo img {
    height: 60px;
    width: auto;
}

.logo span {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 32px;
}

.nav > div {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav > div > div {
    display: flex;
    gap: 12px;
    align-items: center;
}

.user-badge {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 16px;
    background: rgba(29, 185, 84, 0.1);
    border: 1px solid rgba(29, 185, 84, 0.3);
    border-radius: 12px;
}

.user-badge .username {
    color: var(--primary);
    font-weight: 600;
}

.user-badge a {
    color: var(--text-secondary);
    font-size: 14px;
    text-decoration: none;
    padding: 4px 12px;
    border-radius: 6px;
    transition: all 0.3s;
}

.nav .btn {
    padding: 10px 20px;
    font-size: 14px;
    white-space: nowrap;
    text-decoration: none;
}

.nav .btn-primary {
    padding: 10px 24px;
}

#features h2 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 16px;
}

#features > .text-center > p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.cards-grid {
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    max-width: 900px;
    margin: 0 auto;
}

.card {
    padding: 48px;
}

.card .card-icon {
    width: 80px;
    height: 80px;
    font-size: 40px;
    margin-bottom: 32px;
}

.card h3 {
    font-size: 32px;
    margin-bottom: 20px;
}

.card p {
    font-size: 16px;
    margin-bottom: 24px;
    line-height: 1.8;
}

.card .badges {
    margin-bottom: 24px;
}

.card .badge {
    margin: 4px;
}

.card .btn {
    width: 100%;
    margin-top: 16px;
}

.card .btn.disabled {
    opacity: 0.5;
}

.badge-success {
    background: rgba(16, 185, 129, 0.2);
    color: var(--accent-success);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.2);
    color: var(--accent-warning);
}

.badge-info {
    background: rgba(59, 130, 246, 0.2);
    color: var(--accent-info);
}

.card-icon.petitbac {
    background: linear-gradient(135deg, var(--secondary) 0%, var(--primary-dark) 100%);
}

#about {
    padding: 80px 0 120px;
}

#about h2 {
    font-size: 48px;
    font-weight: 800;
    margin-bottom: 48px;
}

#about > div > p {
    font-size: 20px;
    color: var(--text-secondary);
    line-height: 2;
    margin-bottom: 48px;
    text-align: center;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 48px;
    margin: 60px 0;
}

.about-feature {
    text-align: center;
}

.about-feature .icon {
    font-size: 64px;
    margin-bottom: 20px;
}

.about-feature h4 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.about-feature.blindtest h4 {
    color: var(--primary);
}

.about-feature.petitbac h4 {
    color: var(--secondary);
}

.about-feature p {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.8;
}

.technologies {
    margin-top: 60px;
    padding-top: 48px;
    border-top: 2px solid rgba(255, 255, 255, 0.1);
}

.technologies h4 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
}

.technologies p {
    font-size: 18px;
    color: var(--text-secondary);
    text-align: center;
    line-height: 2;
    max-width: 700px;
    margin: 0 auto;
}

.technologies strong {
    color: var(--primary);
}

.footer p a {
    color: var(--primary);
    text-decoration: none;
}