client/src/app/NotFound.css

.notfound-container {
    min-height: calc(100vh - 64px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: var(--bg-primary);
    text-align: center;
}

.notfound-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.notfound-title {
    font-size: 6rem;
    font-weight: 800;
    line-height: 1;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 0 20px rgba(238, 105, 131, 0.3));
}

.notfound-subtitle {
    font-size: 1.5rem;
    color: var(--text-primary);
}

.notfound-text {
    color: var(--text-secondary);
    font-size: 1rem;
    margin-bottom: 1rem;
}

.notfound-btn {
    padding: 0.75rem 2rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    text-decoration: none;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all var(--transition-normal);
}

.notfound-btn:hover {
    background: var(--bg-input);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}